Saatja: "Helen Mihkelson" <
[email protected]>
Saaja: "info - MKM" <
[email protected]>
Teema: Eesti-Läti neljanda elektriühenduse REP ja KSH
Kuupäev: 2026-08-28 07:58
Tähelepanu! Tegemist on välisvõrgust saabunud kirjaga.
Tundmatu saatja korral palume linke ja faile mitte avada.
Tere
Edastan Rail Baltic Estonia OÜ Kirja nr KV2026-RBEE-RBE-COM-K-00236
Eesti-Läti neljanda elektriühenduse riigi eriplaneeringu ja KSH aruande
eelnõule arvamuse andmine.
Link kirja allalaadimiseks :
<https://www.dropbox.com/scl/fo/yox5worr8qq1dfom7lvsz/AMEZCEuS9CybP_Q6kfOK
oJc?rlkey=duah552jpmy94j0p3ic68sbbc&dl=0>
https://www.dropbox.com/scl/fo/yox5worr8qq1dfom7lvsz/AMEZCEuS9CybP_Q6kfOKo
Jc?rlkey=duah552jpmy94j0p3ic68sbbc&dl=0
Lugupidamisega
Helen Mihkelson
Planeeringute ekspert
Rail Baltic Estonia OÜ
E-mail: <mailto:
[email protected]>
[email protected]
Majandus- ja
Kommunikatsiooniministeerium
Suur-Ameerika 1 Teie: 13.08.2026 nr 13-3/2222-1
10122 Tallinn Meie: 26.08.2026 KV2026-RBEE-RBE-COM-K-00236
[email protected]
Eesti-Läti neljanda elektriühenduse riigi eriplaneeringu ja KSH aruande eelnõule arvamuse
andmine
Edastasite meile 13.08.2026 tutvumiseks ja arvamuse avaldamiseks Eesti-Läti neljanda
elektriühenduse riigi eriplaneeringu ja selle keskkonnamõju strateegilise hindamise (edaspidi KSH)
aruande eelnõu.
Oleme tutvunud Eesti-Läti neljanda elektriühenduse riigi eriplaneeringu (Skepast&Puhkim OÜ,
24000064, 01.7.2026) ja KSH aruande (Skepast&Puhkim OÜ, 24000064, 29.06.2026) eelnõudega
ning Rail Baltic Estonia OÜ-l on järgmised märkused:
1. Enne RB raudtee trassi koridoriga ristuvate ehitiste ja tehnovõrkude projekteerimist tuleb
küsida Rail Baltic Estonia OÜ-lt tehnilised tingimused.
2. Õhuliinide ja õhuliini ning raudtee ristumiste projekteerimisel tuleb lähtuda Rail Baltica Design
Guidlines RBDG-MAN-021-0101_Railway Energy Part 4 – Electromagnetic Compatibility
nõuetest (Lisa 1).
3. Õhuliinide ja õhuliini ning raudtee ristumiste projekteerimisel tuleb lähtuda Rail Baltica Utility
Requirements (UR) nõuetest (Lisa 2).
4. Õhuliinide ja õhuliini ning raudtee ristumiste projekteerimisel tuleb lähtuda standardi
seeriatest EVS-EN 50121 ja EVS-EN 50122.
5. Võimalusel vältida õhuliini ja raudtee kaitsevööndite kattuvust. Kui see ei ole võimalik, tuleb
leppida kokku reeglid kaitsevööndites tegutsemiseks. Mitte planeerida õhuliini lähemale kui
50 m äärmisele rööbastee teljele.
6. Projekteerimistöödeks küsida RBE-lt viimased raudteede projektid. Projekteerimistööde
käigus esitada jooksvaks ülevaatamiseks plaanilahendus, raudteega ristumise ristlõiked.
7. Raudtee kaitsevöödis tuleb koostada 3D BIM mudel vastavalt RB kolmanda osapoole BIM
nõuetele (Lisa 3).
8. Rumba–Järvakandi trassilõigus lõikuvad kavandatava elektriliini trassialternatiivid Rail Baltica
raudteetrassiga. Elektriliini ja Rail Baltica trassi ristumiskoha vahetus läheduses ei paikne RBE
olulisi loomastikule kavandatud suurrajatisi, näiteks ökodukte. Piirkonnas asub siiski Rail
Baltica väikeulukitele kavandatud loomatruup CU1633.
9. Riigi eriplaneeringus ja elektriliini edasisel projekteerimisel tuleb arvestada Rail Baltica
raudteetaristu, sealhulgas loomatruubi CU1633 asukoha, otstarbe ning toimimiseks vajalike
OÜ Rail Baltic Estonia Reg. nr: 12734109 Tel. +372 686 7067
Veskiposti 2/1 VAT: EE101954107 E-mail:
[email protected]
10138 Tallinn www.rbestonia.ee
tingimustega. Elektriliini postide, ajutiste ja alaliste juurdepääsuteede, ehitusplatside,
pinnasetööde, kuivenduslahenduste ning taimkatte raadamise kavandamisel tuleb välistada:
loomatruubi sisse- ja väljapääsude sulgemine või nende ligipääsetavuse
halvendamine;
truubini viivate loomade liikumisteede katkestamine või täiendava barjääriefekti
tekitamine;
truubi ümbruse pinnareljeefi, veerežiimi või taimestiku selline muutmine, mis
vähendab rajatise ökoloogilist toimivust;
ehitusmaterjalide, pinnase, jäätmete või tehnika paigutamine truubi sissepääsude ja
loomade liikumiskoridoride lähedusse;
elektriliini ja selle hoolduskoridori lahendused, mis takistavad Rail Baltica rajatiste
hilisemat hooldamist.
10. Projektid tuleb RBE-ga kooskõlastada enne ehitusloa taotluse esitamist EHR-i.
Täname Rail Baltic Estonia OÜ-d riigi eriplaneeringu koostamise protsessi kaasamast ning palume
ka edaspidi planeeringu koostamise protsessis koostööd teha.
Lugupidamisega
(allkirjastatud digitaalselt)
Andrus Aavaste
portfellijuht
Lisad:
1. Rail Baltica Design Guidlines RBDG-MAN-021-0101_Railway Energy Part 4 – Electromagnetic
Compatibility;
2. RBCN-ROA-SPC_RQ-R-00001_Utilities Requirements 4.0;
3. BIM nõuded kolmandatele osapooltele.
Helen Mihkelson
[email protected]
2
RBDG-MAN-021-0101
Design guidelines
Railway Energy: Part 4
Electromagnetic compatibility
19-03-2018
The sole responsibility of this publication lies with the author.
The European Union is not responsible for any use that may be made of the information contained therein.
Design guidelines
Railway Energy: Part 4 Electromagnetic compatibility
Table of Contents
Regulations, Codes, Standards, and Guidelines ............................................................................................................................... 3
1.1. European Standards: ....................................................................................................................................................................... 3
1.2. GOST standards ................................................................................................................................................................................. 4
1.3. International Electro-Technical Commission (IEC) Standards......................................................................................... 5
1.4. Institute of Electrical and Electronics Engineers (IEEE) Standards................................................................................. 5
Overview and General Design Criteria................................................................................................................................................. 6
2.1. Objective .............................................................................................................................................................................................. 6
2.2. Definitions ........................................................................................................................................................................................... 6
2.3. General Design Requirements .................................................................................................................................................... 7
2.4. EMC zoning ......................................................................................................................................................................................... 7
2.5. EMC environment characterisation ........................................................................................................................................... 8
EM environment desktop study ................................................................................................................................................. 8
EM Site Survey ................................................................................................................................................................................... 9
2.6. EMI hazard analysis ....................................................................................................................................................................... 10
EMI coupling / risk analysis ........................................................................................................................................................ 10
EMC risks log ................................................................................................................................................................................... 11
2.7. EMI rules ............................................................................................................................................................................................ 11
Specific design requirements about EMC ....................................................................................................................................... 13
3.1. Electromagnetic Compatibility of the Communication System ................................................................................. 13
3.2. Electromagnetic Compatibility of the Signalling system .............................................................................................. 14
3.3. Electromagnetic Compatibility of the Traction Power ................................................................................................... 16
3.4. Particular maintenance requirements .................................................................................................................................. 16
RBDG-MAN-021-0101 page 2/16
Design guidelines
Railway Energy: Part 4 Electromagnetic compatibility
Regulations, Codes, Standards,
and Guidelines
The principal internationals codes, and standards employed for the design shall include, but not be limited to, the
following:
1.1. European Standards:
EN 50121 (IEC 62236) Railway applications. Electromagnetic compatibility. Rolling stock. Apparatus
EN50122 Railway applications - Fixed installations - Electrical Safety, Earthing and the return circuit
EN 50238-3 Railway applications – Compatibility between Rolling Stock and Train detection systems –
Part 3 – Compatibility with axle counters
EN 50343 Railway applications - Rolling stock - Rules for installation of cabling
EN 50122-3 - Railway applications – Fixed installations – Electrical safety, earthing and the return circuit.
Mutual Interaction of a.c. and d.c. traction systems (see Note 1)
EN50126 Railway applications. The specification and demonstration of reliability, availability,
maintainability and safety (RAMS). Basic requirements and generic process
EN 50500 Measurement procedures of magnetic field levels generated by electronic and electrical
apparatus in the railway environment with respect to human exposure.
TR IEC 61000-5-6 EMC, part 5; Installation and mitigation guidelines, section 6; mitigations of external EM
influences.
IEC61000-5-2 Electromagnetic compatibility (EMC) - Part 5: Installation and mitigation guidelines -
Section 2: Earthing and cabling
IEC61000-5-1 Electromagnetic compatibility (EMC) - Part 5: Installation and mitigation guidelines -
Section 1: General considerations - Basic EMC publication
EN 61000-6-1 Electromagnetic compatibility (EMC) Part 6-1: Generic standards - Immunity for residential,
commercial and light-industrial environments.
EN 61000-6-2 Electromagnetic compatibility (EMC) Part 6-2: Generic standards - Immunity for industrial
environments.
EN 61000-6-3 Electromagnetic compatibility (EMC) Part 6-3: Generic standards – Emission for residential,
commercial and light-industrial environments
EN 61000-6-4 Electromagnetic compatibility (EMC) Part 6-4: Generic standards – Emission for industrial
environments
ICNIRP Guidelines, 1998 Guidelines for limiting exposure to time-varying electric, magnetic, and
electromagnetic fields (up to 300 GHz)
ICNIRP Guidelines, 2009 Guidelines on limits of exposure to static magnetic fields
ICNIRP Guidelines, 2010 Guidelines for limiting exposure to time-varying electric and magnetic fields (1 Hz
– 100 kHz)
Note 1: This standard shall be fulfilled when the Rail Baltica line lies in parallel with existing 1520mm gauge DC
electrified railway in operation (cities approach for instance – chainages to be checked by the designer).
RBDG-MAN-021-0101 page 3/16
Design guidelines
Railway Energy: Part 4 Electromagnetic compatibility
1.2. GOST standards
ГОСТ Р 55176.1-2012 Совместимость технических средств электромагнитная. Системы и оборудование
железнодорожного транспорта. Часть 1. Общие положения (Electromagnetic compatibility. Railway fixed
installations, rolling stock and apparatus. Part 1: General) (see Note 2)
ГОСТ Р 55176.2-2012 Совместимость технических средств электромагнитная. Системы и оборудование
железнодорожного транспорта. Часть 2. Электромагнитные помехи от железнодорожных систем в
целом во внешнюю окружающую среду. Требования и методы испытаний (Electromagnetic
compatibility of technical equipment. Railway systems and equipment. Part 2. Emission of the whole railway
systems to the outside world. Requirements and test methods) (see Note 2)
ГОСТ Р 55176.3.1-2012 Совместимость технических средств электромагнитная. Системы и
оборудование железнодорожного транспорта. Часть 3-1. Подвижной состав. Требования и методы
испытаний (Electromagnetic compatibility of technical equipment. Railway systems and equipment. Part 3-
1. Rolling stock. Requirements and test methods) (see Note 2)
ГОСТ Р 55176.3.2-2012 Совместимость технических средств электромагнитная. Системы и
оборудование железнодорожного транспорта. Часть 3-2. Подвижной состав. Аппаратура и
оборудование. Требования и методы испытаний (Electromagnetic compatibility of technical equipment.
Railway systems and equipment. Part 3-2 Rolling stock. Apparatus and equipment. Specifications and test
methods) (see Note 2)
ГОСТ Р 55176.4.1-2012 Совместимость технических средств электромагнитная. Системы и
оборудование железнодорожного транспорта. Часть 4-1. Устройства и аппаратура железнодорожной
автоматики и телемеханики. Требования и методы испытаний (Electromagnetic compatibility of
technical equipment. Systems and equipment of railway transport. Part 4-1. Devices and equipment of
railway automatics and telemechanics. Requirements and testing methods) (see Note 2)
ГОСТ Р 55176.4.2-2012 Совместимость технических средств электромагнитная. Системы и
оборудование железнодорожного транспорта. Часть 4-2. Электромагнитная эмиссия и
помехоустойчивость аппаратуры электросвязи. Требования и методы испытаний (Electromagnetic
compatibility of technical equipment. Railway systems and equipment. Part 4-2. Emission and immunity of
telecommunication equipment. Requirements and test methods) (see Note 2)
ГОСТ Р 55176.5-2012 Совместимость технических средств электромагнитная. Системы и оборудование
железнодорожного транспорта. Часть 5. Электромагнитная эмиссия и помехоустойчивость
стационарных установок и аппаратуры электроснабжения. Требования и методы испытаний
(Electromagnetic compatibility of technical equipment. Railway systems and equipment. Part 5.
Electromagnetic emission and immunity of fixed power supply installations and apparatus. Requirements
and test methods) (see Note 2)
Note 2: These standards shall be fulfilled when the Rail Baltica line lies in parallel with existing 1520mm gauge railway.
RBDG-MAN-021-0101 page 4/16
Design guidelines
Railway Energy: Part 4 Electromagnetic compatibility
1.3. International Electro-Technical Commission (IEC) Standards
IEC62236-2 Railway applications - Electromagnetic compatibility - Part 2: Emission of the whole railway
system to the outside world
IEC62236-3 Railway applications - Electromagnetic compatibility - Part 3-2: Rolling stock - Apparatus
IEC62236-4 Railway applications – Electromagnetic compatibility – Part 4: Emission and immunity of
the signalling and telecommunications apparatus
IEC62236-5 Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of
fixed power supply installations and apparatus
IEC62305 Protection against lightning
IEC61000-4-16 Electromagnetic compatibility (EMC) - Part 4-16: Testing and measurement techniques -
Test for immunity to conducted, common mode disturbances in the frequency range 0 Hz to 150 kHz
IEC62128-1 Railway applications - Fixed installations - Electrical safety, earthing and the return circuit -
Part 1: Protective provisions against electric shock
1.4. Institute of Electrical and Electronics Engineers (IEEE)
Standards
IEEE 80 – IEEE Guide for 1 Safety in AC Substation Grounding
RBDG-MAN-021-0101 page 5/16
Design guidelines
Railway Energy: Part 4 Electromagnetic compatibility
Overview and General Design
Criteria
2.1. Objective
The design shall ensure that the systems and components of the whole railway system are electromagnetically
compatible with each other and electromagnetically compatible with systems in nearby environment.
All electrical and electronic equipment and apparatus supplied and/or installed under this scope of works to the
railway project shall perform correctly in its intended environment. The intended environment shall include the
railway (including, but not limited to, track areas, station areas, operation control centre(s), technical rooms, depots
and terminals) as well as other systems in the environment along the alignment.
2.2. Definitions
Apparatus – Electrical or electronic product with an intrinsic function intended for implementation into a fixed
railway installation, which can be placed on the market as a single unit.
Compatibility Level –the specified maximum electromagnetic disturbances.
Emission–The phenomenon by which electromagnetic energy emanates from a source
EMC (Electromagnetic Compatibility) – The ability of electronic and electrical equipment, systems and installations
to function satisfactorily in its electromagnetic environment without introducing intolerable and/or excessive levels
of electromagnetic disturbances that could degrade radio communications and other systems operating in that
environment. Conversely electronic and electrical equipment, systems and installations forming the railway should
be able to tolerate the levels of electromagnetic disturbances generated by other systems in that environment and
should operate satisfactorily without degradation or loss of function.
EMI – Unwanted effects related to reception of electromagnetic energy introduced in an equipment, transmission
channel or system
Electromagnetic Disturbance – Any electromagnetic phenomenon which may degrade the performance of a
device, equipment or system, or adversely affect living or inert matter.
Emission – The phenomenon by which electromagnetic energy emanates from a source.
Immunity – The ability of a device, equipment or system to perform without degradation in the presence of an
electromagnetic disturbance
Limit of Disturbance – The maximum permissible electromagnetic disturbance level, as measured in a specified way
System – The railway as a whole includes different systems, such as: railway, signalling, power supply,
telecommunication, MEP, PSD, etc…
Susceptibility – The inability of a device, equipment or system to perform without degradation in the presence of an
electromagnetic disturbance.
RBDG-MAN-021-0101 page 6/16
Design guidelines
Railway Energy: Part 4 Electromagnetic compatibility
2.3. General Design Requirements
Demonstration of equipment compliance to [IEC62236] (and other standards relevant for the type of
product/equipment/installation and location of installation where applicable) shall be an element in demonstrating
compatibility for a major part of the equipment. All the subsystems including basic apparatus from an EMC point of
view shall be defined as compatible to each other.
In order to minimise the EMC risks, the design shall also consider all coupling mechanisms that could occur between
the systems and subsystems with respect to EMC so that could occur between the systems and subsystems with
respect to EMC so that appropriate EMC mitigation and control measures can be implemented at the early stages of
the project.
The design shall consider all EMC interactions (Intra, Inter and Extra) including the EMC coupling mechanisms that
are applicable to each system.
Note:
Intra-system coupling: a coupling between two equipment of a single system, e.g. between two SIG
equipment.
Inter-system coupling: a coupling between two equipment in different systems’ scope of supply, e.g.
between a rolling stock equipment and a SIG equipment.
Extra-system coupling: a coupling between one (or more) equipment in any Partner scope of supply and an
external stakeholder’s equipment or system
The design shall consider all (but not limited to) the following systems from EMC point of view:
Rail systems;
Signaling;
Telecom;
Civil work including the integrated electrical systems in stations, depots, sidings;
Rolling stock and all associated on-board electrical, electronic and control systems;
Power systems including but not limited to substations TPSS, traction power systems;
Third party systems including interfaces internally and externally to the rail environment;
Systems upgrades and maintenance.
The frequency license/authorisation for use of new radio device for the construction and operation of the railway
from national frequency agency shall be required.
All electrical and electronics equipment supplied to, and/or installed under this scope of works, and performing safety
functions and/or safety related functions, shall have adequate electromagnetic immunity to electromagnetic
disturbances.
Emphasis is required on the cross-discipline and independent nature of the EMC Specialists, showing that they can
effectively influence the design when EMC aspects are at variance with other constraints.
2.4. EMC zoning
The rail environment shall be characterized into three different categories. This characterization reflects the reduction
in EM levels of radiated and conducted emissions with increasing distance from the center of the running rails and is
in line with the railway standards [IEC62236]:
RBDG-MAN-021-0101 page 7/16
Design guidelines
Railway Energy: Part 4 Electromagnetic compatibility
1. Railway environment (for equipment location < 3 m from the center of the track line): this EM zone is defined
as the railway zone, railway EMC standards [IEC62236-3], [IEC62236-4], [IEC62236-5] shall be applied to
equipment in this zone. The test levels are defined by the standards.
2. Industrial Environment (for equipment locations >3m and <10m from the center of the track line): this EM
zone is defined as the industrial zone, the generic industrial standards [IEC61000-6-2] and [IEC61000-6-4] for
emissions and immunity shall be applied to equipment in this zone. The test levels are defined by the
standards. Any safety critical equipment located within this zone shall be required to comply with the generic
industrial standards including any additional requirements as minimum.
3. Commercial and light industrial environment (for equipment locations >10m from the center of the track
line): this EM zone is defined as the commercial and light industrial zone, the generic light industrial
standards [IEC61000-6-1] and [IEC61000-6-3] for emissions and immunity shall be applied to equipment in
this zone including any additional requirements. The test levels are defined by standards
2.5. EMC environment characterisation
The design shall consider the existing EM environment and define a baseline levels prior to the procurement,
installation and construction of the systems.
The assessment shall be based on quantitative desktop study and where high levels identified by the study this shall
be validated by EM site survey measurements.
The following process may be used to carry out the EM environment assessment:
Identification of geographical areas for the application of EM environmental assessment;
Carry out EM environment desktop study;
Visual inspection and background measurements;
Validation: EM site survey at defined locations.
EM environment desktop study
EM environment desktop study shall be based on, but not limited to, information and databases available from
national and local authorities, existing project documentation, maps of proposed alignments, satellite images, civil
site visit reports etc.
The EM site survey report shall indicate the key EM characteristics (frequency range, immunity levels, signal levels,
etc..) of those systems in the nearby environment.
The EM environment desktop report shall identify all intentional and non-intentional sources and victims located
within the vicinity of railways environment and specifically analyses all overhead High Voltage cable until 3 km from
the alignment.
The EM environment desktop study report shall include the phenomena of human beings (possible with mobile
communication devices and/or medical devices (peacemakers, hearing aids and similar) in the Rail Baltica railway
environment.
RBDG-MAN-021-0101 page 8/16
Design guidelines
Railway Energy: Part 4 Electromagnetic compatibility
EM Site Survey
EM site survey shall be carried out to validate the EMI flagged by the previous desktop study. This study shall allow
for further investigation and control measures to be implemented at early design stages where necessary.
The EM site survey report shall consist of a visual inspection of the alignment, dynamic and static measurements of
the possible EMI identify and follow up actions (collecting relevant data from 3rd parties, where applicable).
The output from this EMC activity shall provide to all parties involved in the project that there are no significant and
excessive levels of EM emissions in the vicinity of the rail environment which could exceed the EMC susceptibility
limits of the railway systems.
As a minimum (but not limited to) the following intentional EM sources should be covered by the EM site survey
report:
Airport systems (e.g. ground and approach radars, VOR transmitters, aircraft weather radars, military airport,
etc.);
GSM base stations;
Wi-Fi, short range devices;
Public emergency services (e.g. Police and ambulance radios operating on roads/ bridges in the vicinity to
the LRT lines) ranging broadly from 150 MHz – 3 GHz;
Local national radio and TV transmitter tower.
As a minimum (but not limited to) the following non-intentional EM sources should be covered by the EM site survey
report
Industrial scientific and medical band (e.g. arching from welding machines in industrial areas, medical
systems inside adjacent or crossing the proposed alignment);
Overhead power lines and;
non-railway substations.
As a minimum (but not limited to) the following susceptible victims should be covered by the EM site survey report:
Navigation systems of airport;
Various industrial installations nearby alignment;
Sensitive medical and monitoring equipment in hospitals and clinics;
Sensitive scientific research equipment;
Non-medical research facilities or equipment such as Electron Microscope (EM) or transmission electron
microscopes (TEM);
Parallel run to the motor way, with possibly cables in parallel;
The EM site survey report shall indicate the key EM characteristics (frequency range, immunity, signal levels) of those
systems in the nearby environment.
In addition, the impact of electromagnetic pulses due to lightning strikes and people carrying mobile communication
devices shall be considered as “systems” in the environment.
Lightning protection measures as per [IEC62305] will typically be covered by the earthing and bonding requirements.
Note: It shall be noted that people may possess medical devices, such as implants, hearing aids and similar (for the
purpose of analysis, the immunity for those devices may be assumed to typically in compliance with [EN45502-2-1]
and [EN60118-4]).
RBDG-MAN-021-0101 page 9/16
Design guidelines
Railway Energy: Part 4 Electromagnetic compatibility
With respect to livestock, livestock shall be considered as a potential victim (to exposure levels and/or touch
potentials).
In general, the investigations of systems/objects in the environment shall be coordinated with earthing & bonding
specialists, as the E&B works may overlap with EMC activities.
2.6. EMI hazard analysis
EMI Hazard analysis shall cover the systems and components in the scope of works and those systems in the nearby
environment (as identified during the site survey).
The hazard analysis shall be based on EMC control plan (with respect to sources and victims in the railway
environment) and the site survey report (with respect to sources and victims in the railway environment).
The hazard analysis for the systems in the environment shall indicate how those systems could be affected by the
railway emissions.
EMI interference between existing and future railways system should be considered in EMI hazard analysis.
EMI coupling / risk analysis
During design phase, to insure a good design, a coupling / risk analysis report shall be write by the contractor and
contain as a minimum the following topics:
An EMI zone allocation, indicating the type of zones (refer to paragraph2.4) ;
A coupling / risk analysis for railway systems via each of the coupling modes (galvanic, capacitive, inductive,
electromagnetic coupling), being able to reach the system under consideration;
A coupling / risk analysis of systems in close proximity to the railway indicating how those systems might be
impact by the electromagnetic emission propagated from the railway (typically 50Hz magnetic fields, 50Hz
currents via the soil and broadband electromagnetic fields due to radiation);
A Signalling Compatibility Analysis demonstrating compatibility, under normal and credible failure
conditions, between the Rolling Stock and Wayside Signalling systems, in particular Train Detector Systems.
Refer to [EN 50238] for guidance;
A coupling / risk analysis between GSM, UMTS, WIFI emitter and railway equipment;
A three-party coupling / risk analysis, which shall demonstrate that the interface between power supply,
rolling stock and signalling (all using the running rails for their function) will be compatible;
A coupling / risk analysis between external HV line, catenary and sensitive cable (such as signaling or
telecommunication cables) shall be performed in order to estimate safety risk in case of maintenance;
An analysis of the earthing system in order to prevent any longitudinal voltage, which could cause a hazard
to staff and/or passengers or other personnel in and/or near the railway. Limits as per [IEC62128-1] shall be
considered;
EMC requirements for equipment (final set of applicable standards (after execution of coupling / risk analysis)
for the equipment within the scope of supply), of which compliance needs to be proven. This set of
requirements is to be established before any equipment will be procured;
EMC requirements for installation (final set of applicable installation measures (after execution of coupling /
risk analysis) for the equipment within the scope of supply), of which compliance on implementation on site
is to be proven. This set of requirements is to be established before any (installation) works on site will start;
An analysis of human being exposure levels. This analysis shall demonstrate that for typical areas (such as
stations, on-board of trains and trackside areas) the exposure levels for human beings (both passengers and
RBDG-MAN-021-0101 page 10/16
Design guidelines
Railway Energy: Part 4 Electromagnetic compatibility
staff) are in compliance with [ICNIRP] and will not cause problems to people with medical implants and/or
hearing devices and similar.
A coupling analysis on frequencies not covered in the EMC standards shall be performed in order to demonstrate that
those phenomena will not result in EMC problems, or in case they would result in EMC problems, implement measures
such that the final design will not result in compatibility problems in those out-of-standard frequencies.
Note that a result of an initial coupling analysis can be that for certain equipment, for certain locations compatibility
may not be reached and additional measures (higher than normal immunity levels and/or additional installation
measures) will be required.
Where the output from the quantitative analysis shows that the identified risks are still high and exceed the EMC
susceptibility limits, EMC control measures shall be designed, installed and tested. All the design modifications and
tests results shall be documented.
EMC risks log
During all project phases, an EMC risk log shall be developed by the contractor and shall include all EMI identified by
the contractors, subcontractors, equipment suppliers and third-party owners.
EMC risks once identified by the EMC coupling analyses process shall then be categorised into whether the risk will
have any safety implications. EMC risks that are safety related shall also be transferred and logged into the safety
hazard log together with any additional information relevant to the management of the hazard and shall follow the
risk evaluation process.
2.7. EMI rules
The design shall ensure that all cable runs associated with the systems installation adequately protected against
external interference.
The design shall follow EMC best practices design guidelines during the design and construction of all cabling
networks and all associated terminating equipment.
The design shall that the cable routing strategy respects cable segregation rules (as per e.g. [IEC61000-5-1] and
[IEC61000-5-2]) are incorporated into the design
The following recommended basic rules should be considered:
Main cables, including power feeds and lighting circuits or any cables in this same category should not be
grouped with sensitive cables (e.g. data, signal, coms);
All cabling runs should avoid any proximity to intentional radio, transmitters operating in the vicinity;
Long parallel runs of cables should be avoided and if not practicable, enclose either/both the noisy or/and
the sensitive cables in fully enclosed metallic conduits/trunking
The systems and its cabling shall be adequately protected from the effects of the magnetic field generated
by HV power cables, HV power lines, rolling stock and traction power supplies;
Cable sheaths shall be earthed in such a manner as to provide maximum protection from any inducing field;
The earthing system shall prevent any longitudinal voltage, which could cause a hazard to staff and/or
passengers or other personnel in and/or near the railway. Limits as per [IEC62128-1] shall be adhered to;
The earthing system shall be designed to limit values at the terminals of equipment connected to the cables
to the values specified in [IEC61000-4-16]. The equipment itself shall be immune to [IEC61000-4-16].
RBDG-MAN-021-0101 page 11/16
Design guidelines
Railway Energy: Part 4 Electromagnetic compatibility
RBDG-MAN-021-0101 page 12/16
Design guidelines
Railway Energy: Part 4 Electromagnetic compatibility
Specific design requirements
about EMC
3.1. Electromagnetic Compatibility of the Communication System
The Communication System and the related electrical and electronic apparatus shall comply with the European
Directive about Electromagnetic Compatibility (2014/30/EU) about the CE marking process, as far as applicable.
The Communication Systems and the related electrical and electronic apparatus shall be designed with the following
objectives:
a. to reduce the electromagnetic emission which may affect the correct operation of the other subsystems of
the transportation System, in particular Vehicle and Signalling system
b. to reduce the electromagnetic emission which may disturb the sensitive equipment of the outside world
(radio apparatus, adjacent railways, etc.)
c. to be immune to disturbances coming from the other subsystems of the transportation System, in particular
from the Vehicle and Signalling system
d. to be immune from disturbances coming from the outside world (mobile phones, radio equipment, adjacent
railways, etc.)
The Communication system and the related electric and electronic apparatus shall be designed according to the
applicable standards, in particular:
a. 2014/30/EU: Electromagnetic Compatibility (EMC) Directive
b. EN 50121-3-2: Railway applications - Electromagnetic compatibility - Rolling stock -Part 3.2: Rolling Stock
Apparatus
c. EN 50121-4: Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the
Signalling and Telecommunications Apparatus (09/2000)
d. EN 50121-5: Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of railway
fixed power supply installations
The electrical and electronic apparatus intended for use in the Communication Systems shall be designed in
compliance with the approach of the subsystem’s supplier to EMC aspects and with the electromagnetic emission
and immunity requirements which will be defined in the subsystem document Communication Systems EMI/EMC
Control Plan; this document shall be split into the following points, related to the equipment of supply:
a. analysis of the electromagnetic environment stressing the installation when it is working in normal, transient,
degraded and failure conditions
b. identification of the interference sources and related frequencies of operation
c. identification of the victims or of the possible circuits sensitive to the interference and related frequencies
d. identification of the propagation medium or of the interference mechanism
e. methodology to solve the problems
f. determination of the emission and immunity limits for all electric and electronics apparatus, identified as
source or victims, covering the interference mechanisms identified in the bullet point above, taking the
existing standards, if they are applicable, into account
RBDG-MAN-021-0101 page 13/16
Design guidelines
Railway Energy: Part 4 Electromagnetic compatibility
g. definition of the necessary actions to obtain immunity of the equipment with respect to the above-
mentioned interference mechanisms (examples of possible actions are installation of protection devices,
shielding of equipment, filtering, grounding, bonding, shielding and/or armouring of cables, cable
segregation criteria).
The tests of the electrical and electronic apparatus intended for use in the Communication Systems, if necessary, shall
be performed in compliance with the specifications about performance of tests which will be defined in the
subsystem documents EMI/EMC Test Specification; these documents shall be split into the following points, related
to the equipment of supply:
a. to be written based on the Control Plan and with the contribution of the reference standards
b. to locate the tests to be done on the railway System, on the various subsystems and/or their components for
compliance with the emission and susceptibility criteria
c. to be inclusive of procedures, measurement methods, limits, detailed list of test equipment, expected
accuracy of measurement and external influencing conditions, description of modes of operation of the test
samples
d. to show how the test results will have to be documented (diagrams, photographs, tables, etc.)
e. to indicate the testing program.
The results of performed tests on electric and electronic apparatus and related certification shall be collected in the
subsystems documents EMC Dossier, in accordance to the related subsystem documents EMI/EMC Test Specification;
these documents shall include all the test reports of the apparatus and the certificates and/or Declarations of
Conformity with the European Directive 2014/30/EU about Electromagnetic Compatibility.
3.2. Electromagnetic Compatibility of the Signalling system
The Signalling System and the related electrical and electronic apparatus shall comply with the European Directive
about Electromagnetic Compatibility (2014/30/EU:) about the CE marking process, as far as applicable.
The Signalling System and the related electrical and electronic apparatus shall be designed with the following
objectives:
a. to reduce the electromagnetic emission which may affect the correct operation of the other subsystems of
the transportation System, in particular Vehicle and Communication systems
b. to reduce the electromagnetic emission which may disturb the sensitive equipment of the outside world
(radio apparatus, adjacent railways, etc.)
c. to be immune to disturbances coming from the other subsystems of the transportation System, in particular
from the Vehicle and Traction Power system
d. to be immune from disturbances coming from the outside world (mobile phones, radio equipment, adjacent
railways, etc.)
The Signalling system and the related electric and electronic apparatus shall be designed according to the applicable
standards, in particular:
a. 2014/30/EU: Electromagnetic Compatibility (EMC) Directive
b. EN 50121-3-2: Railway applications - Electromagnetic compatibility - Rolling stock -Part 3.2: Rolling Stock
Apparatus
c. EN 50121-4: Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the
Signalling and Telecommunications Apparatus (09/2000)
RBDG-MAN-021-0101 page 14/16
Design guidelines
Railway Energy: Part 4 Electromagnetic compatibility
d. EN 50121-5: Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of railway
fixed power supply installations
The electrical and electronic apparatus intended for use in the Signalling System shall be designed in compliance
with the approach of the subsystem’s supplier to EMC aspects and with the electromagnetic emission and immunity
requirements which will be defined in the subsystem document Signalling EMI/EMC Control Plan; this document shall
be split into the following points, related to the equipment of supply:
a. analysis of the electromagnetic environment stressing the installation when it is working in normal, transient,
degraded and failure conditions
b. identification of the interference sources and related frequencies of operation
c. identification of the victims or of the possible circuits sensitive to the interference and related frequencies
d. identification of the propagation medium or of the interference mechanism
e. methodology to solve the problems
f. determination of the emission and immunity limits for all electric and electronics apparatus, identified as
source or victims, covering the interference mechanisms identified in the bullet point above, taking the
existing standards, if they are applicable, into account
g. definition of the necessary actions to obtain immunity of the equipment with respect to the above-
mentioned interference mechanisms (examples of possible actions are installation of protection devices,
shielding of equipment, filtering, grounding, bonding, shielding and/or armouring of cables, cable
segregation criteria).
The tests of the electrical and electronic apparatus intended for use in the Signalling System, if necessary, shall be
performed in compliance with the specifications about performance of tests which will be defined in the subsystem
documents Signalling EMI/EMC Test Specification; this document shall be split into the following points, related to
the equipment of supply:
a. to be written on the basis of the Control Plan and with the contribution of the reference standards
b. to locate the tests to be done on the railway System, on the various subsystems and/or their components for
compliance with the emission and susceptibility criteria
c. to be inclusive of procedures, measurement methods, limits, detailed list of test equipment, expected
accuracy of measurement and external influencing conditions, description of modes of operation of the test
samples
d. to show how the test results will have to be documented (diagrams, photographs, tables, etc.)
e. to indicate the testing program.
The results of performed tests on electric and electronic apparatus and related certification shall be collected in the
subsystem documents EMC Dossier, in accordance with the related subsystem documents EMI/EMC Test
Specification; these documents shall include all the test reports of the apparatus and the certificates and/or
Declarations of Conformity with the European Directive 2014/30/EU about Electromagnetic Compatibility.
RBDG-MAN-021-0101 page 15/16
Design guidelines
Railway Energy: Part 4 Electromagnetic compatibility
3.3. Electromagnetic Compatibility of the Traction Power
The Traction Power electrical and electronic apparatus shall comply with the European Directive about
Electromagnetic Compatibility (2014/30/EU) about the CE marking process, as far as applicable.
The Traction Power electrical and electronic apparatus shall be designed with the following objectives:
a. to reduce the electromagnetic emission which may affect the correct operation of the other subsystems of
the transportation System, Signalling system
b. to reduce the electromagnetic emission which may disturb the sensitive equipment of the outside world
(radio apparatus, adjacent railways, etc.)
c. to be immune to disturbances coming from the other apparatus of the Traction Power and from the other
subsystems of the transportation System
d. to be immune from disturbances coming from the outside world (mobile phones, radio equipment, adjacent
railways, etc.)
The Traction Power electric and electronic apparatus shall be designed according to the applicable standards, in
particular:
a. 2014/30/EU: Electromagnetic Compatibility (EMC) Directive
b. EN 50121-5: Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of railway
fixed power supply installations
c. EN 61000-6-2: Electromagnetic compatibility (EMC) Part 6-2: Generic standards - Immunity for industrial
environments (10/2001) and EN 61000-6-4: Electromagnetic compatibility (EMC) Part 6-4: Generic standards
– Emission for industrial environments or specific product standards (e.g. EN 50091-2 about UPS) applicable
to apparatus not covered by the above-mentioned railway standard.
The tests of the electrical and electronic apparatus intended for use in the Traction Power, if necessary, shall be
performed in compliance with the specifications about performance of tests which will be defined in the subsystem
documents Traction Power EMI/EMC Test Specification; this document shall be split into the following points, related
to the equipment of supply:
a. to be written on the basis of the applicable reference standards
b. to locate the tests to be done on the railways System, on the various subsystems and/or their components
for compliance with the emission and susceptibility criteria
c. to be inclusive of procedures, measurement methods, limits, detailed list of test equipment, expected
accuracy of measurement and external influencing conditions, description of modes of operation of the test
samples
d. to show how the test results will have to be documented (diagrams, photographs, tables, etc.)
e. to indicate the testing program.
The results of performed tests on electric and electronic apparatus and related certification shall be collected in the
subsystem documents EMC Dossier, in accordance with the related subsystem documents EMI/EMC Test
Specification; these documents shall include all the test reports of the apparatus and the certificates and/or
Declarations of Conformity with the European Directive 2014/30/EU about Electromagnetic Compatibility.
3.4. Particular maintenance requirements
The design shall consider that the maintenance activities will not be degraded EMC characteristics when any
equipment or systems is modified and/or upgraded.
RBDG-MAN-021-0101 page 16/16
TECHN ICAL SPECI FICATIONS
UTILITY REQUIREMENTS
RBCN-ROA-SPC_RQ-R-00001
Revision: 4.0
Author: Laurynas Mockus
Date: 2024-04-08
TECHNICAL SPECIFICATIONS
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
DOCUMENT DEVELOPMENT AND APPROVAL
Ownership
Document Owner Road Team (Civil Works and Stations, CTO)
Approved by Decision No. Date
Technical Reference Group TRG Meeting No.85 2025-04-08
Technical Reference Group TRG Meeting No.56 2023-06-01
Technical Reference Group TRG Meeting No.53 2023-02-21
Technical Reference Group TRG Meeting No.10 2019-03-20
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
DOCUMENT HISTORY
This document has been issued and amended as follows:
Revision Issue Date Author Issue purpose Description of changes
1.0 2019-03-20 Kaur Laansalu First issue
Jānis Štekels, Document template adjustments according to
2.0 2022-01-24 Second issue Document Control guidelines. Content
Valdis Polmanis improvements.
Jānis Štekels, Updates regarding underground cable protection
3.0 2023-06-21 Third issue
Valdis Polmanis measures, Point 15. / 19. / 20. / 123.
Improved the requirements during the alignment
4.0 2025-04-08 Laurynas Mockus Fourth issue
with the National Implementing Bodies.
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
CONTENTS
1 Introduction .................................................................................................................................................................. 8
1.1 Purpose ............................................................................................................................................................................................... 8
1.2 Application ........................................................................................................................................................................................ 8
2 Common requirements.............................................................................................................................................. 9
2.1 Overall requirements ..................................................................................................................................................................... 9
2.2 Requirements for the design documentation ...................................................................................................................15
2.3 Responsibility of the Utility owner .........................................................................................................................................16
2.4 Demand and right for independent third-party expertise ...........................................................................................17
2.5 Supervision of construction works .........................................................................................................................................17
3 Specific requirements .............................................................................................................................................. 18
3.1 Buried gas, oil, district heating, steam, chemicals, other pressurized utilities ......................................................18
3.2 Buried gravity sewage, gravity drainage, gravity storm water utilities ....................................................................20
3.3 Overhead electricity lines and buried cables .....................................................................................................................23
References ................................................................................................................................................................................... 26
Annexes ....................................................................................................................................................................................... 27
Annex 1. Buried utilities vertical placement .........................................................................................................................................27
Annex 2. Overhead utilities vertical placement ..................................................................................................................................28
Annex 3. Minimum vertical clearances between overhead lines and electrified railway catenary contact line and from
top of the rail ....................................................................................................................................................................................................29
Annex 4. Buried utilities horizontal placement ...................................................................................................................................30
Annex 5. Overhead electricity lines horizontal placement .............................................................................................................32
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
ACRONYMS AND ABBREVIATIONS
A full list of acronyms and abbreviations can be found in RBR Glossary of Abbreviations. The following acronyms
and abbreviations are used throughout this document:
Abbreviation Definition
RBR RB Rail AS, is a multinational joint venture of the Republics of Estonia, Latvia and Lithuania, which
has been established to implement the Rail Baltica global project as the central coordinator.
IB National Implementing Body
IM Railway Infrastructure Manager
DN Diameter Nominal, alphanumeric designation of size for reference purposes followed by a
dimensionless whole number which is indirectly related to the physical size in millimetres of the
bore (ID) or outside diameter (OD) of the end connections
DTD Detailed Technical Design
GSM-R International wireless communications standard for railway communication and applications
LDS Leakage detection system, system to detect and notify about leakage in carrier pipe
LoG Level of Geometry set out by BIM documentation
LoI Level of Information set out by BIM documentation
PLC A programmable logic controller is a small, modular solid-state computer with customized
instructions for performing a particular task
SCADA Supervisory control and data acquisition is a control system architecture that uses computers,
networked data communications and graphical user interfaces for process supervisory
management
SMAS Status monitoring and alarm system, system to detect anomalies in systems or in part of the
systems work compared to normal behaviour and notifies via alarm of such of event
VRC Variable-resistance conductor system using three parallel strands of conductor, represented by
resistors.
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
DEFINITIONS
The following terms are used throughout this document:
Term Definition
Cable insulation External cover of cable protecting conduit and internal layers of cable from climate and
physical/chemical damage.
Detailed Technical DTD phase consists of preparation of detailed drawings and specifications establishing the
Design requirements for the construction of the project. DTD describes the quality, configuration, size,
and relationship of all components to be incorporated into the project. DTD must be consistent
with the project program, the construction budget, and the project schedule. DTD is basis for
starting Construction.
Direct bury cables Communications or transmissions electrical cable which is especially designed to be buried under
the ground without any kind of extra covering, sheathing, or piping to protect it.
Master Design During the Master Design phase, the project design is further refined including field studies,
especially of a topographical, geological, geotechnical, hydrological and hydraulic nature. In the
engineering project, details are provided of the unit costs of the materials and of the different
construction phases. All design decisions are completed during this phase in order to prepare the
subsequent construction documents and to start procuring construction works.
National Implementing Rail Baltic Estonia OU (reg. nr 12734109) in Estonia,
body
Eiropas Dzelzceļa līnijas SIA (reg. nr 40103836785) in Latvia,
AB LTG Infra (reg. nr 305202934) in Lithuania.
Railway Infrastructure Railway infrastructure manager during operational period after construction of the project.
manager
Railway Right-of-Way An area of land which is an integral part of the railway infrastructure, and which is intended for
(Estonia) the placement of railway infrastructure objects in order to ensure the development of the railway
infrastructure and the safe operations, maintainability, and also to protect people and the
environment from harmful effects of the railway. The boundaries of the railway Right of Way in
designs shall be determined in compliance with, Republic of Estonia regulations, current building
standards in effect for the relevant construction facility and in compliance with the cross-section
drawings provided in the Design Guidelines. The railway Right-of-Way includes for the railway
line assigned Land plots and the zones inside the railway and railway equipment fence and other
physical barriers like noise walls, retaining walls, etc.
Railway Right-of-Way An area of land which is an integral part of the railway infrastructure, and which is intended for
(Latvia) the placement of railway infrastructure objects in order to ensure the development of the railway
infrastructure and the safe operations, maintainability, and also to protect people and the
environment from harmful effects of the railway. The boundaries of the railway Right of Way in
designs shall be determined in compliance with, Republic of Latvia regulations, current building
standards in effect for the relevant construction facility and in compliance with the cross-section
drawings provided in the Design Guidelines. The railway Right-of-Way includes for the railway
line assigned Land plots and the zones inside the railway and railway equipment fence and other
physical barriers like noise walls, retaining walls, etc.
Railway Right-of-Way An area of land which is an integral part of the railway infrastructure, and which is intended for
(Lithuania) the placement of railway infrastructure objects in order to ensure the development of the railway
infrastructure and the safe operations, maintainability, and also to protect people and the
environment from harmful effects of the railway. The boundaries of the railway Right-of-Way in
designs shall be determined in compliance with, Republic of Lithuania Law on of the special land
use conditions, current building standards in effect for the relevant construction facility and in
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
compliance with the cross-section drawings provided in the Design Guidelines. The railway Right-
of-Way includes for the railway line assigned Land plots and the zones inside the railway and
railway equipment fence and other physical barriers like noise walls, retaining walls, etc.
Utilities Infrastructure services provided to consumers (public) and are important for the normal
functioning of society. Including but not limited to railway operation communication and energy
supply networks, communication networks, sewage networks, water supply networks, drainage
networks, oil and gas networks, heating supply networks, land melioration networks, electrical
supply networks, lighting networks etc.
Utility owner In this document Utility owner is considered Utility owner or Utility manager or Utility possessor.
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
1 Introduction
1.1 Purpose
1. This document provides requirements for utilities construction, in Rail Baltica railway right-of-way and in
relation to railway. It is mainly directed to third parties who would like to construct new or reconstruct existing
utilities transverse or parallel to railway. Also, the same principals must be followed by designer of the Rail Baltica
infrastructure.
2. This document does not describe requirements for third-party non-utility related structures and buildings.
1.2 Application
3. This document describes the requirements for construction of typical utilities according to common practices
in contact with Rail Baltica railway. This document does not cover specialized utilities and structures such as for
toxic chemicals, nuclear power stations, windfarms, fuel storages, etc. For those special requirements will be
developed by IB or IM (or RBR, when is the Client of design services) case-by-case.
4. If special environmental, landscape, geologic or other conditions exist that do not allow utility to be designed
and constructed according to this document then this shall be applied for exception with justifications to IB or
IM (or RBR, when is the Client of design services). IB or IM (or RBR, when is the Client of design services), shall
evaluate whether the application and results of the technical study are sufficient and, in duly justified cases, may
require an additional study or information, if such is not submitted then the exception will be automatically
declined. The exception considered accepted only when it was accepted by IB or IM (or RBR, when is the Client
of design services) in written exceptional approval. RBR shall be informed about each IB approved exception
with provided justifications.
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
2 Common requirements
2.1 Overall requirements
5. Along the railway (parallel to railway line) inside the railway right-of-way third party utilities and the related
structures and equipment/structures (also even when utility itself is transverse to railway line) are not allowed
and can be designed and built only in exceptional circumstances (refer to requirement No. 4). For this the third
party must submit a technical study that there is no other way to realize their project. The before named
technical study must be approved by IB or IM (or RBR, when is the Client of design services) before commencing
with Design and technical approval and must in minimum demonstrate the following:
5.1. An alternate location is not feasible, from the standpoint of providing efficient utility services in a manner
conducive to safety, durability, and economy of maintenance and operations.
5.2. The placement will not adversely affect the design, construction, operation, maintenance, safety, or
stability of the railway facility.
5.3. The placement will not interfere with or impair the proposed use or future expansion of the railway
facility.
5.4. The disapproval of the use of the right-of-way does not result in an immitigable impact to the owner, the
environment, or the public.
6. IB or IM (or RBR, when is the Client of design services) may reject the utility design proposal or expected activity
if it will interface with the foreseen future development and maintenance of railway or equipment, will not
ensure compliance with railway traffic safety requirements and cause danger to environment, human property,
life or health, will restrict passenger mobility, restrict road vehicle access to buildings or equipment in the railway
station or equipment areas.
7. Placing of third-party utilities parallel along the railway under the railway storm management ditches and
waterways is not allowed in any circumstances.
8. Placing of third-party utilities under and on to the facility sites, such as traction power facility and
communications’ tower sites, CCS facilities are not allowed and can be design and built only in exceptional
circumstances (refer to requirement No. 4).
9. In no circumstance’s utilities can be placed in location of unstable ground or areas with high risk of landslides.
10. All buried utilities carrying liquids shall be placed below the freezing point of the ground.
11. Transverse crossings of utilities that are at less than 60 -degrees from the railway longitudinal alignment shall
be classified as longitudinal encroachment.
12. When crossing Rail Baltica railway with utilities, the crossing shall be designed at as close as possible to a
perpendicular 90 degrees angle to minimize the crossing distance. Crossings with angles exceeding 90±5
degrees must be properly justified and require exceptional approval (refer to requirement No.4).
13. For exceptional cases crossings with existing utilities built before Rail Baltica infrastructure may remain at an
angle that is not perpendicular (90 degrees) to the designed railway. In case of buried utilities casing or
protection pipes shall be provided for these utilities according to relevant requirements of this document.
Solutions shall be agreed between Utility owner and IB or IM (or RBR, when is the Client of design services).
14. Outside the railway right-of-way all the utilities should be placed as far away from the railway as possible but
any time not closer than stipulated with current document.
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
15. All the new utilities must be placed as close to the existing non-railway utilities as possible respecting other
conditions stipulated in this document.
16. The trenchless or open trench method shall be used for the construction of all the buried utilities transverse to
the railway line, that shall be built before the railway construction has started. Method shall be selected on
CAPEX criteria and duration of construction works. The cost estimation of construction works and duration of
railway traffic break (if necessary, when approaching existing railway lines under operation) comparison
between the open trench vs trenchless shall be provided and pre-aligned with IB or IM (or RBR, when is the
Client of design services) case-by-case. The comparative estimation should take into account the geological
conditions, compaction, soil replacement if needed, and also launching and receiving shafts at the entry and
exit points if for trenchless option.
17. All the buried utilities transverse to the railway line and built after the railway construction has started shall be
designed to and built only using the trenchless method. All the buried pipelines shall have casing pipe.
Telecommunication end electricity cables shall be installed in the protection pipes. The 110kV and higher
voltage cables additionally shall have casing pipe if required by national regulations.
18. All casing pipes shall be selected to withstand the applied loads, taking into account the final deformations of
the pipes. The casing pipes may not deform beyond the limits specified by the designer/supplier, the
corresponding calculations shall be provided in the design documentation. All casing pipes crossing the railway
must have the minimum stiffness rating (ring stiffness) of at least 30kN/m2.
19. For trenchless method the design must include in minimum following and be in line with EN 12889:
19.1. Soil investigation and interpretation
19.2. Method selection
19.3. Soil stabilizing design
19.4. Pipe design inc. pipe shield design
19.5. Pipe installation design and requirements for machinery
19.6. Fracture Mitigation Plan
19.7. Pipe installation control measures and documenting
19.8. Shaft design (when applicable)
19.9. Health and Safety measures to be applied
20. IB or IM (or RBR, when is the Client of design services) reserves the rights to decide if utility location on structures
shall be permitted or not after third party submits carefully reasoned evidence that there is no other option to
build their utilities other than installing them on RB structures and will take into account CAPEX-OPEX impact,
legal acts and propose cost compensation schema.
21. For utilities crossing the railway there must be foreseen means to take them out of use (valves, circuit breaks
etc.) when their malfunction, breaking or other circumstances related to them will cause danger to railway.
Designer shall evaluate and asses the related risks and include these into project risk register and hazard register.
22. Design shall include the requirements for trench slopes and support measures from work safety perspective or
clear references to applicable related rules and regulations.
23. If metal carrier or casing pipes are used then they must have protective coating and/or cathodic protection
and/or the calculated thickness must be increased to allow the casing pipe to withstand the loads during full
100-year life span taking account loss of thickness from corrosion, and also meet EN 13480-6, Annex A, the
corresponding calculations including calculations related to corrosion shall be provided in the design
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
documentation.. Designer shall evaluate and asses the corrosion related risks and include these into project risk
register and hazard register. Design shall also include and follow the corrosion protection requirements by EN
12501 and/or cathodic protection by EN 12954, including but not delimited to corrosion assessment, cathodic
protection effectiveness assessment, monitoring, inspection and maintenance. For protective coating reference
to applicable European standard used must be made.
24. Metal casing pipe installed under a railway shall have a specified minimum yield strength of 235 MPa or greater
and their thickness must be calculated according to the imposed loads, life span and ground conditions.
25. Concrete casing pipe installed under a railway shall have a specified minimum strength class of 30/37 and with
minimum exposure class XC4 XF4 or greater and their thickness must be calculated according to the imposed
loads and ground conditions.
26. Metal casing pipes (including solutions with reinforced concrete) and carrier pipes shall be grounded and
bonded. Possible solutions shall be analysed by the designer of utilities case by case and integrated with the
earthing and bonding systems applied to different facilities in railway infrastructure. Solutions shall be approved
by IB or IM (or RBR, when is the Client of design services).
27. If other materials are used for casing pipes, they shall fulfil all the life-cycle requirements set out for steel and
concrete casing pipes.
28. All utilities buried or overhead which might be compromised by lightning shall be grounded for lightning
outside the railway right-of-way.
29. Grounding of third-party utilities must be at 20m away of any grounding points and structures of railway.
Grounding of any facility or equipment must be confirmed with IB or IM (or RBR, when is the Client of design
services) in every specific point separately.
30. All the utilities related to electronic and electric devices shall meet the EMC requirements set in DG RBDG-MAN-
021.
31. To minimize the possibility that utility pipelines become part of the Traction Power Return System, insulated
joints or couplings shall be installed at or adjacent to the shut-off valves or at a similar location where shut-off
valves are not required.
32. Casing and carrier pipe joints under the railway shall be of leakproof construction and capable of withstanding
railway loads (axel load 25 tons). For the load calculation methodology described by EN 1991-2 paragraph 6.3.6.2
must be applied above the reference plane in upper load distribution zone.
33. Note: For standard sleeper spacing 1666 pc/km with sleeper width 290 mm and total combined ballast and sub-
ballast layer thickness of 620 mm, the interference reference plane is at the boundary of sub-ballast layer and
embankment, in other cases it must be calculated accordingly.
34. Below the interference reference plane, the methodology utilizing the Boussinesq principal of elastic half-space
theory for a uniformly loaded strip is used. The method assumes that the soil is a homogenous, isotropic mass
within a semi-infinite geometry and the loads applied are within the linear elastic range for the substrate
strength. Therefore, it is important to check that the bearing capacity ultimate limit sate condition is satisfied
before proceeding.
35. The data is provided for the design of utilities below a loaded section of the running track and interference
reference plane. The following graph and associated tabulated data present a profile of total stresses with depth.
36. The calculated stresses must be factored using the appropriate design approach according to EC7.
37. For sections of the embankment which adopt light-weight fill, the stresses may produce a conservative design.
It is up to the designer to adopt the appropriate parameters or use the chart provided (Currently a unit weight
of 18kN/m3 and 22kN/m3 is assumed for the ballast and embankment material respectively).
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
38. Buoyancy has not been accounted for as ground water depths are location specific. This must be assessed on a
section-by-section basis by the designer.
39. Note: Stresses can be obtained either by reading directly from the graph, or alternatively by the process of
interpolation using the tabulated data. Stresses account the rail, sleeper and live loading respectively. The sum
of the imposed and overburden pressures is presented as the blue profile within the graph.
Total Pressure (kPa)
160150140130120110100 90 80 70 60 50 40 30 20 10 0
0
Depth below interference plane (m)
0,5
1
1,5
2
2,5
3
3,5
4
4,5
5
5,5
6
Sum of total pressure Overburden pressure
Imposed pressure
Exhibit 1: Pressure based on casing pipe depth
Table 1: Pressure based on casing pipe depth
Depth below interference reference level, Z (m) Sum of total pressure (kPa)
0.2 116
0.3 114
0.4 110
0.5 105
0.6 100
0.7 95
0.8 92
0.9 89
1 87
1.1 85
1.2 84
1.3 83
1.4 82
1.5 82
1.6 82
1.7 82
1.8 82
1.9 83
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
2 84
2.1 84
2.2 85
2.3 86
2.4 87
2.5 88
2.6 90
2.7 91
2.8 92
2.9 94
3 95
3.1 97
3.2 98
3.3 100
3.4 101
3.5 103
3.6 105
3.7 106
3.8 108
3.9 110
4 112
4.1 113
4.2 115
4.3 117
4.4 119
4.5 121
4.6 123
4.7 124
4.8 126
4.9 128
5 130
5.1 132
5.2 134
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
5.3 136
5.4 138
5.5 140
5.6 142
5.7 144
5.8 146
5.9 148
6 150
40. IB or IM (or RBR, when is the Client of design services) leaves itself possibility to change, update or imply
additional conditions without any prior explanations. Informing of the parties will be implemented on need
basis.
41. There is not allowed to set additional easement at the railway right-of-way.
42. For utility installation at existing structures or railways, a Work Monitoring Plan must be implemented. The utility
designer needs assess the demand for monitoring scope and, if needed, include it in the Work Monitoring Plan.
The considered scope as minimum must consist of:
42.1. For utilities which will be installed after the railway construction has started - calculate the predicted
settlement on top of the railway surface;
42.2. For utilities which will be installed after the railway construction has started – monitoring of the
settlements of the railway surface and report the fact to IB;
42.3. Monitoring of existing surface anomalies;
42.4. Dust and air pollution monitoring;
42.5. Contamination monitoring;
42.6. Ground water monitoring;
42.7. Vibration monitoring;
42.8. Monitoring of sensitive operational structures and equipment;
42.9. Monitoring quantity and quality of excavated soil comparing it to design information.
43. The utility contractor is obliged to reinstate the area affected by construction works to its prior state, when
reinstating the affected area after completion of works, the guidance and demands of IB or IM (or RBR, when is
the Client of design services) shall be respected.
44. All buried utilities inside the railway Right-of-Way shall be marked with marking posts and signs above ground
following requirements listed below:
44.1. Technical solution of markings posts and signs and minimum requested information to be indicated shall
be according to the national norms, but with additional not smaller than 120x120mm sign sheet
containing, following information, if not duplicated:
44.1.1. type of utility and main characteristics of utility (voltage, pressure, diameter, type of gas etc.);
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
44.1.2. Utility owner;
44.1.3. emergency phone number;
44.1.4. Rail Baltica kilometer;
44.1.5. depth of utility from the ground and elevation.
44.2. If not required by national norms additional marking post with sign sheet shall be installed at the
following places:
44.2.1. at the bottom of embankment in fill;
44.2.2. at top of the backslope of cut;
44.2.3. right at the fence (sign sheet without post) if previous marking post is more than 5 m away from the
fence line;
44.2.4. other utility crossing;
44.2.5. at the road crossing, at the backslope of the ditch or bottom of embankment if road without the
diches.
44.3. The final marking plan shall be aligned with IB.
47. All buried utilities inside the railway Right-of-Way, except the sections installed in trenchless method, must be
marked with warning tape which is to be placed 0,3m above the utility.
48. Minimum vertical and horizontal clearances for safety of the railway are given in Annexes 1 to 5.
49. All applicable laws, standards and norms in related country and European Union must be followed. If
demands set in those are more stringent than in current document, then the more stringent demands must
be followed.
2.2 Requirements for the design documentation
50. All the designs must be presented in two equal copies from which one copy is in pdf format and another copy
in dwg (drawings), xlsx (tables) and docx (text files) and BIM model data according to DG RBDG-MAN-030. BIM
LOD will be agreed case-by-case with the objective to obtain the minimum model definition for referencing in
the asset database.
51. Design must include at least following documents: layout, cross-sections, longitudinal profile and explanatory
note. IB or IM (or RBR, when is the Client of design services), leaves itself possibility to demand any additional
drawings and documents if needed for the design validation and clash check with railway design.
52. In the design the railway alignment stations must be marked with the accuracy of 1m.
53. The dwg drawings must be in metric units (meters) and in residing country coordinate and altimetry systems.
54. In design the railway must be shown on profile, sections and layouts. Also, the distances in metric units must be
shown- both in plan, sections and profile. For the trenchless method the start and end excavation locations,
depth and incline of the slopes must be shown.
55. The third-party Utility owner is fully responsible for their design and confirms that they are aware of the
prevailing ground conditions, loads from railway its structures and embankment and their suitability for
installation of their utility and the methods of installations designed.
56. All the known existing and future utilities, buildings, roads, railways and nature objects must be shown on the
design drawings.
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
57. Designer shall submit a utility, existing structure and railway protection and monitoring plan for utilities within
the zone of influence of excavation limits.
58. The Designer shall include in the utility design a requirement, that contractor for utility construction works shall
receive permission from IB or IM.
59. As-Built Documentations must be submitted to IB or IM and RBR not later than 30 days after completion of
construction works.
60. For designs where RBR is the Client, design documentation must meet the Rail Baltica 2d CAD Standard as long
as it doesn’t contradict with Utility Owner’s requirements. For Other designs where the Client is the Utility owner,
Rail Baltica 2d CAD standards shall be followed as far as they do not contradict with the Designing company’s
internal CAD standards and Utility owner's requirements. BIM requirements shall be followed to the extent as
instructed by IB or IM or RBR case-by-case for each specific utility type.
61. As-built documentation has to meet the DG RBDG-MAN-030 requirements, as outlined on the official website:
railbaltica.org.
62. The Utility owner is responsible for providing all "as-built data" in accordance with the DG RBDG-MAN-040
requirements. This information must be submitted to the RBR AIM team for integration into the RBR Asset
Register system. Third-party models will be utilized strictly for reference purposes.
63. For all designs which has an interface with RB project, but are out of scope of IB or IM (or RBR when is the Client
of design services) responsibility, there shall be included requirement, that contractor for utility construction
works prior planned construction works shall receive permission for construction works from IB or IM.
64. In case of accidental damage being done to an unidentified utility that was previously not surveyed properly
and incorrect or no information about its location was provided by the Utility owner, then RBR and IB or IM shall
not be held accountable for compensating the created damage.
2.3 Responsibility of the Utility owner
65. The owner of the utilities will be responsible that all the works are carried out according to documentation
approved by RBR or IB or IM. RBR, IM and IB will not be liable for any damages to the utilities that are not
constructed according to the documentation approved by RBR or IB or IM. Allowed deflections during
construction from the design are given in SPECIFIC REQUIREMENTS chapter of this document.
66. Third-party owner will be fully responsible for the good condition, warranty, up-keep, maintenance and repairs
of their utilities throughout period of exploitation and acknowledges that the utilities are placed in high risk
zone and they will have no demands later to the owner of the railway.
67. When the utility is put out of service then the Utility owner is obliged to remove the utility from railway right-
of-way and restore the affected area to its prior state. It shall be noted that only trenchless methods after
construction of the railway has started can be used (backfilling with foamed concrete etc.).
68. Owner of the Railway will carry no liability for safe keeping the third-party utilities inside the railway right-of-
way.
69. Contract must be concluded between the railway owner and the Utility owner setting out the exact specific
conditions that are applied for construction, warranty, up-keep, maintenance and repairs of the utility.
70. Utility owner when carrying out work inside the railway right-of-way must include in his team certified railway
engineer, technician, mechanic or signalling engineer who is trained and authorized to work inside railway right-
of way by the laws of the Country.
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
2.4 Demand and right for independent third-party
expertise
71. Before approval of design IB or IM (or RBR, when is the Client of design services), has the rights to demand that
the Utility owner will present an Independent Third-Party Expertise for the design. If IB or IM (or RBR, when is the
Client of design services) determines that the expertise provided by the Utility owner is not performed correctly
then IB or IM (or RBR, when is the Client of design services) leaves itself a right to order additional Independent
Third-Party Expertise before giving approval of design.
2.5 Supervision of construction works
72. Inside the railway right-of-way RBR or IB or IM has full rights to inspect and supervise that the construction works
are carried out according to approved design and applicable Health and Safety policy is followed. If any
discrepancies are found, then IB or IM has the right to stop the construction works and to demand the
rectification the constructions already built if they do not meet the agreed design. In case of severe violation IB
or IM has right do ban the Contractor from railway right-of-way.
73. At the completion of construction sign-off on the completion act by IB or IM is needed before pursuing the
Permit of Use. Copy of as-built documentation must be provided to RBR and IB or IM and meeting the demands
set out in the REQUIREMENTS FOR THE DESIGN DOCUMENTATION chapter of this document.
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
3 Specific requirements
3.1 Buried gas, oil, district heating, steam, chemicals,
other pressurized utilities
74. None of the buried pipelines can be placed under cross-overs and turnouts.
75. For gas pipelines type of gas that is to be transported by the pipeline must be indicated in design.
76. Casing pipe must be at least 2xDe of carrier pipe for pipes up to DN200 and 1,5xDe of carrier pipe for pipes over
DN200, but not smaller than required by regulations.
77. Using open trench construction, the minimum bedding under the utilities must always be built according to
manufacturer’s specification and applicable European Standard but never less than 15cm thick from rock
material and compacted to compaction level 0,98. If the excavated material in the trench is of quality class Q0
or Q1 according to UIC 719R, it cannot be backfilled and needs to be replaced by a suitable material. The back-
fill of the trench must be made from QS2 and QS3 class material in accordance with UIC 719R. The backfills from
QS2 soils shall be compacted in 200-300 mm lifts to a compaction level not less than 0.97 for each lift,
furthermore, at the final surface level the bearing capacity ratio shall not exceed Ev2/Ev1 ≤2.6. The backfills from
QS3 soils shall be compacted in 200-300 mm lifts to a compaction level not less than 0.98 for each lift,
furthermore, at the final surface level the bearing capacity ratio shall not exceed Ev2/Ev1 ≤2.5. The bearing
capacity Ev2 determined by a plate loading test shall be at least as high as those for upper embankments set
out in the Technical Specifications for Rail Baltica railway construction works. Trench must always be wide
enough to allow machined compaction. Minimum thickness of initial back fill before starting machined
compaction must be at least 300 mm. The soils used for back-fill shall not include any ice or snow and cannot
be frozen. Maximum stone size allowed is 64 mm.
78. Trench shall always be de-watered.
79. Casing pipes must extend at least 5m out from the railway right-of-way. High embankment and deep cut
situations shall be assessed case-by-case where the previous requirement is not appropriate.
80. Retention/service manholes must be watertight and with internal diameter of at least 1000 mm with lockable
lid. Manholes must be designed to applicable loads (traffic, soil etc.). Placing of soils and their compaction same
rules must be followed as for pipe installations.
81. The pressurized distribution lines shall have shut valves each side of the railway. Shut-off valves must be placed
outside the railway right-of-way and casing pipe (at least in length allowing their repairs and replacement) and
have appropriate signage. For transmission lines designer shall obtain the from Utility owner information about
shut off possibility in emergency case, and it should be included in the design documentation. Application of
shut valves for transmission lines must be evaluated by designer, based requirements of national regulation and
on risk assessment. An assessment of the risk shall be carried out by the EU Regulation 402/2013 on the common
safety method for risk evaluation and assessment. Application of shut valves for transmission lines must be
agreed with IB or IM (or RBR, when is the Client of design services) and Utility owner. Solutions of shut valves, if
applicable, must be agreed with relevant Utility owner.
82. For gas pipelines casing pipes vent pipes must be built allowing to remove gas from inside the casing pipe in
emergency and to prevent build-up of gas inside the casing pipe. Venting pipes must be brought through the
ground outside the railway right-of-way and must extend at least 1,5m above the ground surface.
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
83. Emergency response procedures shall be developed by the designer or Utility owner to address situations
where a pipeline leak, railway derailment, or incident may compromise the integrity of the pipeline. In addition,
emergency response measures from the IM must be considered during the risk evaluation and assessment
process. Local conditions shall be considered when developing these procedures.
84. Ends of casing pipes not ending in retention manhole must be sealed to prevent intrusion of soil and debris.
Seal must consider thermal/heat expansion of the pipelines.
85. All crossing pressurized pipelines with shut-off valves, if applicable, shall have valve manholes or valve extension
system accessible from the ground level for closing the pipeline section under the railway. The valves must be
located outside the railway right-of-way.
86. Section of pipeline to be grounded (within railway right-of-way) shall be separated by isolators from other
sections of the pipeline. Grounding of any facility or equipment must be confirmed with IB or IM (or RBR, when
is the Client of design services in every specific point separately.
87. All hydrants that are not designed for railway must be placed outside the railway right-of-way.
88. Application of leakage detection system (LDS) must be evaluated by Designer in accordance with DG RBDG-
MAN-029 chapter 3.1.6 requirements. An assessment of the risk shall be carried out by the EU Regulation
402/2013 on the common safety method for risk evaluation and assessment. The pipelines with applicable LDS
and with connection to Rail Baltica SCADA must be equipped with LDS or status monitoring and alarm system
(SMAS) which telemetry must comply with IEC 60870-5 and applicable EU legislation and standards for
connection to Rail Baltica SCADA. And at least two output ports must be foreseen for hardwired connection to
Rail Baltica SCADA from LDS. Only secure ha one-way telemetry is allowed- emergency/information signals from
controller or PLC only.
89. Tolerances for construction (inc. casing pipes) for open trench construction:
89.1. Alignment at joints ±5 mm;
89.2. Horizontal alignment: ±100mm (<Ø1,5 m) and ±200 mm (Ø≥1,5 m);
89.3. Elevation, measured each 20 m along the utility line: ±30 mm (<Ø1,5 m) and ±50 mm (Ø≥1,5 m);
89.4. Grade difference, measured between the manholes or/and ends of casing pipe:
[-0,001 m/m] ÷ [+0,003 m/m];
89.5. Grade difference, measured between the manholes or/and ends of casing pipe of utilities carrying gases:
[±0,002 m/m];
89.6. The designer shall keep the horizontal distances from the neighbouring objects including as the values
of minimum distances required by legal acts, regulations and this document as the horizontal alignment
maximum allowed tolerance value into the total.
89.7. Other, less strict, tolerances for open trench construction (inc. casing pipes) are acceptable in the case if
the designed utility location, including chosen less strict tolerances, has enough clearance reserve,
ensuring a principle – do not violate:
89.7.1. Other required values set in this document;
89.7.2. Requirements of legal acts and regulations regarding distances to buildings, structures,
engineering networks, utilities, facilities and other objects and their protection zones or land plots;
89.7.3. The interests of third parties by the conditions stipulated in contracts or written consents if such
exist, etc.
90. Tolerances for construction (inc. casing pipes) for trenchless construction:
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
90.1. Alignment at joints ±5 mm;
90.2. Horizontal alignment: ±300 mm (<Ø1,5 m) and ±500 mm (Ø≥1,5 m);
90.3. Elevation: ±200 mm (<Ø1,5 m) and ±300 mm (Ø≥1,5 m);
90.4. Grade difference, measured between the manholes or/and ends of casing pipe:
[-0,001 m/m] ÷ [+0,01 m/m];
90.5. The designer shall keep the horizontal distances from the neighbouring objects including as the values
of minimum distances required by legal acts, regulations and this document as the horizontal alignment
maximum allowed tolerance value into the total.
90.6. Other, less strict, tolerances for trenchless construction (inc. casing pipes) are acceptable in the case if the
designed utility location, including chosen less strict tolerances, has enough clearance reserve, ensuring
a principle – do not violate:
90.6.1. The corresponding utility type required minimum distances for open trench installation method in
the Annex 1, and other required values set in this document;
90.6.2. Requirements of legal acts and regulations regarding distances to buildings, structures,
engineering networks, utilities, facilities and other objects and their protection zones or land plots;
90.6.3. The interests of third parties by the conditions stipulated in contracts or written consents if such
exist, etc.
91. When support structures are used in trench during construction (retention walls, ties etc.) then they need to be
removed parallel with the backfilling.
3.2 Buried gravity sewage, gravity drainage, gravity
storm water utilities
92. None of the buried pipelines can be placed under crossovers and turnouts and railway system equipment
locations.
93. Casing pipe must be at least 2xDe of carrier pipe for pipes up to DN200 and 1,5xDe of carrier pipe for pipes over
DN200, but not smaller than required by national regulations.
94. Using open trench construction, the minimum bedding under the utilities must always be built according to
manufacturer’s specification and applicable European Standard but never less than 15cm thick from rock
material and compacted to compaction level 0,98. If the excavated material in the trench is of quality class Q0
or Q1 according to UIC 719R, it cannot be backfilled and needs to be replaced by a suitable material. The back-
fill of the trench must be made from QS2 and QS3 class material in accordance with UIC 719R. The backfills from
QS2 soils shall be compacted in 200-300 mm lifts to a compaction level not less than 0.97 for each lift,
furthermore, at the final surface level the bearing capacity ratio shall not exceed Ev2/Ev1 ≤2.6. The backfills from
QS3 soils shall be compacted in 200-300 mm lifts to a compaction level not less than 0.98 for each lift,
furthermore, at the final surface level the bearing capacity ratio shall not exceed Ev2/Ev1 ≤2.5. The bearing
capacity Ev2 determined by a plate loading test shall be at least as high as those for upper embankments set
out in the Technical Specifications for Rail Baltica railway construction works. Trench must always be wide
enough to allow machined compaction. Minimum thickness of initial back fill before starting machined
compaction must be at least 300 mm. The soils used for back-fill shall not include any ice or snow and cannot
be frozen. Maximum stone size allowed is 64 mm.
95. Trench shall always be de-watered.
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
96. Casing pipes must extend at least 5m out from the railway right-of-way. High embankment and deep cut
situations shall be assessed case-by-case where the previous requirement is not appropriate.
97. All gravity pipes carrying liquids, and their casing pipes must have grade of at least 0,4% and end in
retention/service manhole. Grade must be towards the manhole. If inside the casing pipes are to be allowed to
be carried out maintenance works, then the retention/service manholes must be placed at each end of the
casing pipe.
98. Retention/service manholes must be watertight and with internal diameter of at least 1000 mm with lockable
lid. Manholes must be designed to applicable loads (traffic, soil etc.). Placing of soils and their compaction same
rules must be followed as for pipe installations.
99. Emergency response procedures shall be developed by the designer or Utility owner to address situations
where a pipeline leak, railway derailment, or incident may compromise the integrity of the pipeline In addition,
emergency response measures from the IM must be considered during the risk evaluation and assessment
process. Local conditions shall be considered when developing these procedures.
100. Ends of casing pipes not ending in retention manhole must be sealed to prevent intrusion of soil and debris.
Seal must consider thermal/heat expansion of the pipelines.
101. Section of pipeline to be grounded (within railway right-of-way) shall be separated by isolators from other
sections of the pipeline. Grounding of any facility or equipment must be confirmed with IB or IM (or RBR, when
is the Client of design services) in every specific point separately.
102. Application of leakage detection system (LDS) must be evaluated by Designer in accordance with DG RBDG-
MAN-029 chapter 3.1.6 requirements. An assessment of the risk shall be carried out by the EU Regulation
402/2013 on the common safety method for risk evaluation and assessment. The gravity pipes with applicable
LDS shall contain leakage detection sensors placed in the down grade manholes. If connected to Rail Baltica
SCADA, the telemetry must comply with IEC 60870-5 and applicable EU legislation and standards for connection
to Rail Baltica SCADA. And at least two output ports must be foreseen for hardwired connection to railway
SCADA from sensors. Only secure ha one-way telemetry is allowed- emergency/information signals from
controller or PLC only.
103. Tolerances for construction (inc. casing pipes) for open trench construction:
103.1. Alignment at joints ±5 mm;
103.2. Horizontal alignment: ± 100 mm (<Ø1,5 m) and ± 200 mm (Ø≥1,5 m);
103.3. Elevation, measured each 20 m along the utility line: ± 30 mm (<Ø1,5 m) and ±50 mm (Ø≥1,5 m);
103.4. Grade difference, measured between the manholes or/and ends of casing pipe:
[-0,001 m/m] ÷ [+0,003 m/m];
103.5. The designer shall keep the horizontal distances from the neighbouring objects including as the
values of minimum distances required by legal acts, regulations and this document as the horizontal
alignment maximum allowed tolerance value into the total.
103.6. Other, less strict, tolerances for open trench construction (inc. casing pipes) are acceptable in the case
if the designed utility location, including chosen less strict tolerances, has enough clearance reserve,
ensuring a principle – do not violate:
103.6.1. Other required values set in this document;
103.6.2. Requirements of legal acts and regulations regarding distances to buildings, structures,
engineering networks, utilities, facilities and other objects and their protection zones or land
plots;
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
103.6.3. The interests of third parties by the conditions stipulated in contracts or written consents if such
exist, etc.
104. Tolerances for construction (inc. casing pipes) for trenchless construction:
104.1. Alignment at joints ±5 mm;
104.2. Horizontal alignment: ± 300 mm (<Ø1,5 m) and ± 500 mm (Ø≥1,5 m);
104.3. Elevation: ± 200 mm (<Ø1,5 m) and ± 300 mm (Ø≥1,5 m);
104.4. Grade difference, measured between the manholes or/and ends of casing pipe:
[-0,001 m/m] ÷ [+0,01 m/m];
104.5. The designer shall keep the horizontal distances from the neighbouring objects including as the
values of minimum distances required by legal acts, regulations and this document as the horizontal
alignment maximum allowed tolerance value into the total.
104.6. Other, less strict, tolerances for trenchless construction (inc. casing pipes) are acceptable in the case if
the designed utility location, including chosen less strict tolerances, has enough clearance reserve,
ensuring a principle – do not violate:
104.6.1. The corresponding utility type required minimum distances for open trench installation method
in the Annex 1, and other required values set in this document;
104.6.2. Requirements of legal acts and regulations regarding distances to buildings, structures,
engineering networks, utilities, facilities and other objects and their protection zones or land
plots;
104.6.3. The interests of third parties by the conditions stipulated in contracts or written consents if such
exist, etc.
105. When support structures are used in trench during construction (retention walls, ties etc.) then they need to be
removed parallel with the backfilling.
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
3.3 Overhead electricity lines and buried cables
106. None of the buried cables can be placed under crossovers and turnouts.
107. At the span, where the wires cross the railway, the cable utility shall be double-dead ended to avoid a single
point of failure so that the wires are not dropped onto the tracks.
108. Overhead utility facilities shall have the supporting poles, masts, towers, and guy-wires located outside the
railway right-of-way and designed in such manner that falling towards railway in accidental situation is avoided.
Where such condition is impractical, a design variance shall be submitted to the IB or IM (or RBR, when is the
Client of design services) and at no times the before named structures can be closer to railway than specified in
Annexes 2 and 5.
109. Lower voltage overhead electricity lines should be placed lower than the higher voltage ones. All electricity lines
below 110kV must be foreseen buried. Distances in Annexes 2 and 3 must be respected.
110. For overhead electricity lines means for de-icing during exploitation must be designed. Specific methodology
(hydrophobic coating, electro-thermal, ice rolling, VRC, passive-solar etc.) must be presented with maintenance
and operations manuals. If physical de-icing is to be foreseen (e.g. Ice rolling) then this must be possible to
execute without need to enter railway right-of-way. Solution must be approved by RBR and IB or IM.
111. The application of a status monitoring and alarm system to detect line breaks over the railway must be evaluated
by the Designer, based requirements of national regulation and on risk assessment in conjunction with
measures applied by requirement No.107. An assessment of the risk shall be carried out by the EU Regulation
402/2013 on the common safety method for risk evaluation and assessment. Application of status monitoring
and alarm system must be agreed with IB or IM (or RBR, when is the Client of design services) and Utility owner.
If applicable, Systems telemetry must comply with IEC 60870-5 and applicable EU legislation and standards for
connection to Rail Baltica SCADA. At least two output ports must be foreseen for hardwired connection to
railway SCADA from sensors. Only secure ha one-way telemetry is allowed- emergency/information signals from
controller or PLC only. Solutions of status monitoring and alarm system, if applicable, must be agreed with
relevant Utility owner.
112. Always buried installation of cable lines shall be preferred when crossing the railway.
113. All electricity cables over 1kV crossing the railway must be at least 5m away from other signalling or
communication cables, crossing the railway.
114. Direct bury cables shall not be used.
115. Emergency response procedures shall be developed by the designer or Utility owner to address situations
where a line break, railway derailment, or incident may compromise the integrity of the cable line. In addition,
emergency response measures from the IM must be considered during the risk evaluation and assessment
process. Local conditions shall be considered when developing these procedures.
116. If a reserve for the cable needs to be foreseen, then it must be left inside a cable manhole outside of railway
right-of-way if Utility owner approves the use of manholes in their utility network, if not, then the reserve needs
to be left as instructed by the Utility owner and agreed with IB or IM (or RBR, when is the Client of design
services).
117. Buried cables shall not have deep bends (less than 60x diameter of cable) in railway right-of-way.
118. Cable protection pipes crossing the railway shall have minimum compressive strength not less than 1250 N
(according to EN 61386), when extra casing required by national regulations – protection pipe must be at least
1,5xDe of cables for pipes up to DN110 and 1,2xDe of cables for pipes over DN110, but not smaller than required
by national regulations.
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
119. Using open trench construction, the minimum bedding under the utilities must always be built according to
manufacturer’s specification and applicable European Standard but never less than 15cm thick from rock
material and compacted to compaction level 0,98. If the excavated material in the trench is of quality class Q0
or Q1 according to UIC 719R, it cannot be backfilled and needs to be replaced by a suitable material. The back-
fill of the trench must be made from QS2 and QS3 class material in accordance with UIC 719R. The backfills from
QS2 soils shall be compacted in 200-300 mm lifts to a compaction level not less than 0.97 for each lift,
furthermore, at the final surface level the bearing capacity ratio shall not exceed Ev2/Ev1 ≤2.6. The backfills from
QS3 soils shall be compacted in 200-300 mm lifts to a compaction level not less than 0.98 for each lift,
furthermore, at the final surface level the bearing capacity ratio shall not exceed Ev2/Ev1 ≤2.5. The bearing
capacity Ev2 determined by a plate loading test shall be at least as high as those for upper embankments set
out in the Technical Specifications for Rail Baltica construction works. Trench must always be wide enough to
allow machined compaction. Minimum thickness of initial back fill before starting machined compaction must
be at least 300 mm. The soils used for back-fill shall not include any ice or snow and cannot be frozen. Maximum
stone size allowed is 64 mm.
120. Trench shall always be de-watered.
121. Casing/protection pipes must extend at least 5m out from the railway right-of-way. High embankment and deep
cut situations shall be assessed case-by-case where the previous requirement is not appropriate.
122. If reserve casing/protection pipes will be added for future use, then their heads must be sealed tight and marked
in nature as for other utilities.
123. In no circumstances can be cable splicers be located or cables be spliced inside railway right-of-way.
124. Tolerances for construction (inc. casing pipes) for open trench construction:
124.1. Alignment at joints ±5 mm;
124.2. Horizontal alignment: ±100 mm;
124.3. Elevation, measured each 20 m along the utility line: ±30 mm;
124.4. The designer shall keep the horizontal distances from the neighbouring objects including as the
values of minimum distances required by legal acts, regulations, and this document as the horizontal
alignment maximum allowed tolerance value into the total.
124.5. Other, less strict, tolerances for open trench construction (inc. casing pipes) are acceptable in the case
if the designed utility location, including chosen less strict tolerances, has enough clearance reserve,
ensuring a principle - do not violate:
124.5.1. Other required values set in this document;
124.5.2. Requirements of legal acts and regulations regarding distances to buildings, structures,
engineering networks, utilities, facilities and other objects and their protection zones or land
plots;
124.5.3. The interests of third parties by the conditions stipulated in contracts or written consents if such
exist, etc.
125. Tolerances for construction (inc. casing pipes) for trenchless construction:
125.1. Alignment at joints ±5 mm;
125.2. Horizontal alignment: ±300 mm;
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
125.3. Elevation: ±150 mm; The designer shall keep the horizontal distances from the neighbouring objects
including as the values of minimum distances required by legal acts, regulations and this document
as the horizontal alignment maximum allowed tolerance value into the total.
125.4. Other, less strict, tolerances for open trench construction (inc. casing pipes) are acceptable in the case
if the designed utility location, including chosen less strict tolerances, has enough clearance reserve,
ensuring a principle - do not violate:
125.4.1. The corresponding utility type required minimum distances for open trench installation method
in the Annex 1 “BURIED UTILITIES VERTICAL PLACEMENT”, and other required values set in this
document;
125.4.2. Requirements of legal acts and regulations regarding distances to buildings, structures,
engineering networks, utilities, facilities and other objects and their protection zones or land
plots;
125.4.3. The interests of third parties by the conditions stipulated in contracts or written consents if such
exist, etc.
126. When support structures are used in trench during construction (retention walls, ties etc.) then they need to be
removed parallel with the backfilling.
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
REVIEW AND UPDATE OF THE DOCUMENT
Revision 2.0: Document formatting has been updated in compliance with company document management
requirements. Content improvements. Document content updates can be traced in Utilities Requirements content
updates Comment Sheet RBCN-ROA-SPC_AP-R-00001.
Revision 3.0: Updates regarding underground cable protection measures, Point 15. / 19. / 20. / 123. Document
content updates can be traced in Utilities Requirements content updates Comment Sheet RBCN-ROA-SPC_AP-R-
00002.
Revision 4.0: Improved the requirements during the alignment with the National Implementing Bodies. Document
content updates can be traced in Utilities Requirements content updates Comment Sheet RBCN-ROA-SPC_AP-R-
00003.
References
Ref: Document Number: Document Title:
1. RBDG-MAN-033-0101 BIM Manual
2. RBDG-MAN-034-0101 CAD Standard
3. RBGL-CRS-TPL-Z-00001 Internal Governance Document template (MS Word)
4. RBCN-ROA-SPC_AP-R-00001 Utility Requirements content updates
5. RBCN-ROA-SPC_AP-R-00002 Utility Requirements content updates
6. RBCN-ROA-XX-XX-SPC-R-00003 Utility Requirements Status Assessment procedure
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
Annexes
Annex 1. Buried utilities vertical placement
Minimum buried depth from top of the
Minimum buried depth from top of the
road pavement and/or existing ground
Utility rail and/or existing ground to the top of
to the top of the utility casing pipe
the utility casing pipe (including ditches)
(including ditches)
Water pipelines 2,5m open trench, 3,5m for trenchless methods 2,0m open trench, 2,5m for trenchless methods
Sewage and drainage
2,0m open trench, 3,0m for trenchless methods 1,5m open trench, 2,5m for trenchless methods
pipelines
Pressure sewage
2,5m open trench, 3,5m for trenchless methods 2,0m open trench, 2,5m for trenchless methods
pipelines
3,0m open trench with 2,0m wide concrete slab 2,0m open trench with 1,0m wide concrete slab
Gas pipe cover 0,5m deep from existing ground, 4,0m for cover 0,5m deep from existing ground, 2,5m for
trenchless methods trenchless methods
3,0m open trench with 2,0m wide concrete slab 2,0m open trench with 1,0m wide concrete slab
Oil and fuel pipelines cover 0,5m deep from existing ground, 4,0 for cover 0,5m deep from existing ground, 2,5m for
trenchless methods trenchless methods
District heating and
2,0m open trench, 3,0m for trenchless methods 1,2m open trench, 1,7m for trenchless methods
steam pipelines
Industrial pipelines 2,0m open trench, 3,0m for trenchless methods * 1,2m open trench, 1,7 for trenchless methods *
Electricity cables
2,0m; 3,0m for trenchless methods 1,0m; 1,7m for trenchless methods
below <110kV
Electricity cables
2,5m; 3,5m for trenchless methods 1,5m; 2,0m for trenchless methods
≥110kV and over
Communication
1,5m; 2,5m for trenchless methods 1,0m; 1,5m for trenchless methods
cables
REMARK: *-Additionally load calculations have to be carried out according to A.3.3. EN 13480-6
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
Annex 2. Overhead utilities vertical placement
Minimum vertical clearances between overhead Minimum vertical clearances between overhead
Utility type and Voltage lines and electrified railway catenary contact line lines and electrified railway catenary contact line
and from top of the rail*. at railway ramps, stations and loading areas
Tele-communication cable Only buried installation allowed Only buried installation allowed
Electricity cables below < 110 kV crossing with railway Only buried installation allowed Only buried installation allowed
14,5m from track and 6,5m from highest electrified part
Electricity 110 kV 18,5m
of the catenary system
15,9m from track and 7,9m from highest electrified part
Electricity 330 kV and over 19,9m
of the catenary system
Fixed electrical installations (isolators, conductors etc.) 4,5m in every direction 4,5m in every direction
REMARK:
1) Crossing of other overhead utilities (fuel lines, district heating lines, steam lines, gas lines and others) with railway except electric cables, is strictly not permitted (also within the structures as viaducts
and overpasses)
2) For all of the vertical distances indicated, the electric cables should be calculated for ambient external environment temperatures:
-Minimum temperature with no other climatic action -40C°
-Normal ambient temperature (every day temperature) +5C°
-Maximum temperature +35C°
3) All suspensions and deflections have to be proved by calculations
4) Design must meet requirements set in this document, EN 50341-1 If there is conflict in demands between this document and the EN 50341-1 then the most stringent demands shall prevail. If EN
50341-1 reference to National Normative Aspects (NNA) then EVS-EN 50341-2-20 shall be considered as the prevailing NNA.
5) In location where the railway vertical profile has not been defined and/or can change during future designs and/or construction IB or IM (or RBR, when is the Client of design services) can define
additional safety clearance.
6) LV/MV Electrical cables cannot be implemented with overhead technical solution (only crossing under railway). Only 110 and 330 kV could be implemented with overhead technical solution.
* - Please see scheme in Annex 3 for measurements description
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
Annex 3. Minimum vertical clearances between
overhead lines and electrified railway catenary contact
line and from top of the rail
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
Annex 4. Buried utilities horizontal placement
Horizontal distance (m) from underground utilities to:
Structures and Highway ditch 1435 railway
railway related Railway outer edge or embankment
Road/street
buildings catenary pole highway cut line with
Utility type curb stone, road
(bridges, Fence and ramp foundations and embankment existing ground
edge, road
overpasses, foundations grounding cut line with (natural
verge with
tunnels etc.) system existing ground subgrade) or
reinforcement
and their foundations (natural railway ditch
foundations subgrade) outer edge
Water and pressurized sewage
5 3 10 1,5 1 10
pipelines
Gravity sewage and gravity
3 1,5 10 1,5 1 10
stormwater pipelines
Gravity drainage collectors 3 1 5 1,5 1 5,8
Gravity drainage pipelines 0,4 0,4 0,6 0,4 0,4 5,8
Gas pipelines with the following
pressure (MPa):
Low pressure ≤0,005 MPa 2 1 10 2 1 10
Middle pressure 0,005≤0,4 MPa 2 1 10 2 1 10
High pressure 0,4≤1,6 MPa 7 1 10 1,5 1 10,8
Very high pressure Over 1,6 MPa 50 25 50 50 50 50
District heating pipelines 2 1,5 10 1 4 10
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
All types Electrical power supply
1 1 5 1,5 1 10,8
cables
Mast, pole, tower Mast, pole, tower Mast, pole, tower Mast, pole, tower Mast, pole, tower Mast, pole, tower
Electricity masts, poles, towers,
or guy height from or guy height from or guy height from or guy height from or guy height from or guy height from
and guys
ground + 10m ground + 10m ground + 10m ground + 10m ground + 10m ground + 10m
Railway technological electric
0,6 0,6 0,6 1,96 1 1,9
power supply cables
Telecommunication cables 0,6 0,6 2 1 1 10,8
Railway technological
telecommunication network 0,6 0,6 0,6 1,5 5 1,9
cables
Utility canals and utility tunnels 2 1,5 1,5 1,5 1 5,8
Fuel pipelines 30 5 30 15 15 30
Utility Requirements,
RBCN-ROA-SPC-RQ-R-00001, 4.0
Annex 5. Overhead electricity lines horizontal placement
Horizontal distance (m)
Road ditch outer edge or 1435 railway embankment cut
Utility type Railway catenary pole
highway embankment cut line line with existing ground
foundations and grounding
with existing ground (natural (natural subgrade) or railway
system foundations
subgrade) ditch outer edge
Up to 35 kV (included) electricity guyed masts,
15m 8m 15m
poles, towers in rural areas
Over 35 kV (not included) electricity guyed
30m 8m 30m
masts, poles, towers in rural areas
Up to 35 kV (included) electricity un- guyed Height of the mast measured from Height of the mast measured from
15m
masts, poles, towers in rural areas ground level + 10m ground level + 10m
Over 35 kV (not included) electricity un- Not allowed inside of railway right-of- Not allowed inside of railway and road Not allowed inside of railway right-of-
guyed masts, poles, towers in rural areas way right-of-way way
Up to 110 kV (included) electricity guyed Not allowed inside of railway right-of- Not allowed inside of railway and road Not allowed inside of railway right-of-
masts, poles, towers in urban areas way right-of-way way
Over 110 kV (not included) electricity guyed
8m 3m 8m
masts, poles, towers in urban areas
Up to110 kV (included) electricity un- guyed Not allowed inside of railway right-of- Not allowed inside of railway and road Not allowed inside of railway right-of-
masts, poles, towers in urban areas way right-of-way way
Over 110 kV (not included) electricity un- Not allowed inside of railway right-of- Not allowed inside of railway and road Not allowed inside of railway right-of-
guyed masts, poles, towers in rural areas way right-of-way way