EN    EN  
 EUROPEAN 
COMMISSION  
Brussels, XXX   
ENE TSI 
[…](2013) XXX  draft 
  
COMMISSION REGULATION (EU) No …/.. 
of XXX  
on the technical specifications for interoperability relating to the 'energy' subsystem of 
the rail system in the Union 
(Text with EEA relevance) 
  
EN 2   EN COMMISSION REGULATION (EU) No …/.. 
of XXX  
on the technical specifications for interopera bility relating to the 'energy' subsystem of 
the rail system in the Union 
(Text with EEA relevance) 
THE EUROPEAN COMMISSION, 
Having regard to the Treaty on the Functioning of the European Union, Having regard to Directive 2008/57/EC of the Eu ropean Parliament and of the Council of 17 
June 2008 on the interoperability of the rail system within the Community
1, and in particular 
Article 6(1) thereof, 
Whereas: (1) Article 12 of Regulation (EC) No 881/2004 of  the European Parliament and of the 
Council
2 requires the European Railway Agency (‘the Agency’) to ensure that the 
technical specifications for interoperabili ty (‘the TSIs’) are adapted to technical 
progress, market trends and social requi rements and to propose to the Commission the 
amendments to the TSIs which it considers necessary. 
(2) By Decision C(2010) 2576 of 29 April 2010 , the Commission gave the Agency a 
mandate to develop and review the TSIs w ith a view to extending their scope to the 
whole rail system in the Union.  
(3) On 24 December 2012, the Agency issued a recommendation on the amendments to 
the TSI relating to the "energy"  subsystem (ERA/REC/11-2012/INT). 
(4) In order to keep pace w ith technological progress a nd encourage modernisation, 
innovative solutions should be promoted and their implementation should, under certain conditions, be allowed. Where an  innovative solution is proposed, the 
manufacturer or his authorised representa tive should state how it deviate from or how 
it complements the relevant provision of the TSI, and the innovative solution should 
be assessed by the Commission. If this assessment is positive, the Agency should 
devise the appropriate functi onal and interface specifications  of the innovative solution 
and develop the relevant assessment methods. 
(5) In accordance with Article 17(3) of Directiv e 2008/57/EC, Member States are to notify 
to the Commission and other Member States the conformity assessment and verification procedures to be used for the specific cases as well as the bodies 
responsible for carrying out these procedures.  
(6) Rail traffic currently operates under existing  national, bilateral, multinational or 
international agreements. It is important that these agreements do not hinder current 
                                                
 
1 OJ L , , p. .  
2 Regulation (EC) No 881/2004 of the European Parliament and of the Council of 29 April 2004 
establishing a European railway ag ency (OJ L 164, 30.4.2004, p. 1).  
EN 3   EN and future progress towards interoperability. The Member States should therefore 
notify such agreements to the Commission. 
(7) In accordance with Article 11(5) of Dir ective 2008/57/EC, the TSI in Annex should 
allow, for a limited period of time, for interope rability constituents to be incorporated 
into subsystems without certificatio n if certain conditions are met. 
(8) Commission Decisions 2008/284/EC3 and 2011/274/EU4 should hereby be repealed. 
The measures provided for in this Regulation are in conform ity with the opinion of the 
Committee established in accordance with Article 29(1) of Directive 2008/57/EC, 
HAS ADOPTED THIS REGULATION: 
Article 1 
 
This Regulation establishes the technical specifica tion for interoperability (TSI) relating to the 
‘energy’ subsystem of the rail system in the Union, as set out in the Annex. 
Article 2 
 
1. The TSI shall apply to any new, upgraded or  renewed ‘energy’ subsystem of the rail 
system in the Union as defined in poi nt 2.2 of Annex II to Directive 2008/57/EC. 
2. The TSI shall apply to the following networks: (a) the trans-European conventional rail syst em network as defined in Annex I, section 
1.1 of Directive 2008/57/EC; 
(b) the trans-European high-speed rail syst em network (TEN) as defined in Annex I, 
section 2.1 of Directive 2008/57/EC; 
(c) other parts of the network of the whole rail system in the Union. 
Article 3 
The TSI shall apply to networks with the fo llowing nominal track gauges: 1 435 mm, 1 520 
mm, 1 524 mm, 1 600 mm and 1 668 mm. 
Metric gauge is, then, explicitly excluded from the technical scope of the TSI.  
Article 4 
 
1. With regard to specific cases referred to in point 7.4.2 of the Annex to this 
Regulation, the conditions to be met for ve rifying the interoperability in accordance 
with Article 17(2) of Dir ective 2008/57/EC shall be th ose national rules of the 
Member State which authorise the placing in service of the subsystem covered by 
this Regulation. 
                                                
 
3 Commission Decision 2008/284/EC of 6 March 2008 concerning a TSI relating to the energy sub-
system of the trans-European high-speed rail system (OJ L 104, 14.4.2008, p. 1). 
4 Commission Decision 2011/274/EU of 26 April 2011 concerning a TSI relating to the energy sub-
system of the trans-European conventional rail system (OJ L 126, 14.5.2001, p. 1).  
EN 4   EN 2. By [six months of the entry into force of this Regulation]  at the latest, each Member 
State shall send to the other Member States and to the Commission the following information: 
(a) the national rules referred to in paragraph 1; 
(b) the conformity assessment and verificati on procedures to be  carried out on 
application of the national rules referred to in paragraph 1; 
(c) the bodies designated in accordance w ith Article 17(3) of Directive 
2008/57/EC to carry out the conformity assessment an d verification procedures 
in the specific cases referred to in po int 7.4.2 of the Annex to this Regulation. 
Article 5 
 
1. Member States shall notify the Commission, no later than [six months of the entry 
into force of this Regulation], of any exis ting national, bilateral, multilateral or 
international agreements between Member  States and railway undertaking(s), 
infrastructure managers or non-member c ountries which are required by the very 
specific or local nature of the intended rail  service or which deliv er significant levels 
of local or regional interoperability.  
That obligation does not appl y to agreements which have  already been notified under 
Commission Decision 2008/284/EC. 
2. Member States shall notify the Commission of any future agreements or amendments 
to existing agreements which the Member State intends to sign. 
Article 6 
 
The procedures for assessment of conformity, su itability for use and EC verification set out in 
section 6 of the Annex shall be based on th e modules established in Decision 2010/713/EU. 
Article 7 
 
1. An EC certificate of verification for a s ubsystem that contains  interoperability 
constituents which do not have an EC declar ation of conformity or suitability for use 
may be issued during a transitional period ending on 31 May 2021 provided the 
requirements laid down in point 6.3 of the Annex are met. 
2. The production, upgrade or rene wal of the subsystem with use of the non-certified 
interoperability constituents shall be completed within the transitional period 
provided for in paragraph 1, incl uding its placing  in service. 
3. During the transitional period pr ovided for in paragraph 1: 
(a) the reasons for non-certification of any in teroperability constituents shall be 
properly identified by the notified body befo re granting the EC  certificate in 
accordance with Article 18 of Directive 2008/57/EC; 
(b) the national safety authorities sha ll report on the us e of non-certified 
interoperability constituents in the cont ext of authorisation procedures in their  
EN 5   EN annual report referred to in  Article 18 of Directive 2004/49/EC of the European 
Parliament and of the Council5. 
4. From [ one year from the entry into force of this Regulation ], newly produced 
interoperability constituents shall be cove red by the EC declarati on of conformity or 
suitability for use. 
Article 8 
 
Section 7 of the Annex setting out a strategy for migrating towards a fully interoperable 
energy subsystem shall be carried out in conjun ction with Article 20 of Directive 2008/57/EC 
which lays down the principles for applying the TSI to renewal and upgrading projects. 
Member States shall send to the Commission a report on the implementati on of Article 20 of 
Directive 2008/57/EC three years after the entr y into force of this Regulation. This report 
shall be discussed in the Committee set up by Article 29 of Directive 2008/57/EC and, where 
appropriate, the TSI in the Annex shall be adapted. 
Article 9 
 
1. In order to keep pace with technologi cal progress, innovative solutions may be 
required which do not comply with the spec ifications set out in the Annex or for 
which the assessment methods set ou t in the Annex cannot be applied. 
2. Innovative solutions may relate to th e energy subsystem, its parts and its 
interoperability constituents. 
3. If an innovative solution is proposed, the manufacturer or  his authorised 
representative established within the Uni on shall declare how it deviates from or 
complements the relevant provisions of th is TSI and submit the deviations to the 
Commission for analysis. The Commission may request the opinion of the Agency 
on the proposed innovative solution. 
4. The Commission shall deliver an opinion on the proposed innovativ e solution. If this 
opinion is positive, the appropriate functional and interface specifications and the assessment method, which need to be included in the TSI in order to allow the use of 
this innovative solution, shall be develope d and subsequently integrated in the TSI 
during the revision process pursuant to Article 6 of Directive 2008/57/EC. If the 
opinion is negative, the innovative so lution proposed cannot be applied. 
5. Pending the review of the TSI, the positive opinion delivered by the Commission 
shall be considered as an acceptable m eans of compliance with the essential 
requirements of Directive 2008/ 57/EC and may be used for the assessment of the 
subsystem. 
Article 10 
 
Commission Decisions 2008/284/EC  and 2011/274/EU are repeal ed with effect from 1 
January 2015.  
                                                
 
5 OJ L 164, 30.4.2004, p. 44.   
EN 6   EN However, they shall continue to apply to subsystems authorised in accordance with those 
Decisions. 
Article 11 
 
This Regulation shall enter into force on the twentieth day following that of its publication in 
the Official Journal of  the European Union . 
It shall apply from 1 January 2015. However, an  authorisation for placing in service may be 
granted in accordance with the TSI as set out in  the Annex to this Regulation before 1 January 
2015. 
This Regulation shall be binding in  its entirety and directly applicable in all Member States. 
Done at Brussels, 
 For the Commission 
 Siim KALLAS  Vice-President  
EN 7   EN ANNEX  
TECHNICAL SPECIFICATION FOR INTEROPERABILITY 
'Energy' Sub-System 
TABLE OF CONTENTS 
1. Introduction................................................................................................................ 10  
1.1. Technical Scope ......................................................................................................... 10  
1.2. Geographical Scope ................................................................................................... 10  
1.3. Content of this TSI..................................................................................................... 10  
2. Description of the energy subsystem ......................................................................... 10  
2.1. Definition ................................................................................................................... 10  
2.1.1.  Power supply.............................................................................................................. 11  
2.1.2.  Geometry of the overhead c ontact line (OCL) and quality of current collection ...... 11  
2.2. Interfaces with other subsystems ............................................................................... 11  
2.2.1.  Introduction................................................................................................................ 11  
2.2.2.  Interfaces of this TSI with the Safety in railway tunnels TSI.................................... 12  
3. Essential requirements ............................................................................................... 12  
4. Characterisation of the subsystem.............................................................................. 14  
4.1. Introduction................................................................................................................ 14  
4.2. Functional and technical specifi cations of the subsystem.......................................... 14  
4.2.1.  General provisions ..................................................................................................... 14  
4.2.2.  Basic parameters characteris ing the energy subsystem ............................................. 14  
4.2.3.  Voltage and frequency ............................................................................................... 15  
4.2.4.  Parameters relating to supply system performance.................................................... 15  
4.2.5.  Current capacity, DC systems,  trains at standstill...................................................... 15  
4.2.6.  Regenerative braking ................................................................................................. 16  
4.2.7.  Electrical protection coor dination arrangements ....................................................... 16  
4.2.8.  Harmonics and dynamic effects for AC  traction power supply systems ................... 16  
4.2.9.  Geometry of the overh ead contact line ...................................................................... 16  
4.2.10.  Pantograph gauge....................................................................................................... 17  
4.2.11.  Mean contact force..................................................................................................... 18  
4.2.12.  Dynamic behaviour and quality  of current collection................................................ 18  
4.2.13.  Pantograph spacing for overhead  contact line design................................................ 19  
4.2.14.  Contact wire material ................................................................................................. 19  
4.2.15.  Phase separation sections ........................................................................................... 19   
EN 8   EN 4.2.16.  System separation sections......................................................................................... 20  
4.2.17.  On-ground energy data collecting system.................................................................. 21  
4.2.18.  Protective provisions agai nst electric shock .............................................................. 21  
4.3. Functional and technical specifi cations of the interfaces........................................... 21  
4.3.1.  General requirements ................................................................................................. 21  
4.3.2.  Interface with Rolling Stock subsystem..................................................................... 21  
4.3.3.  Interface with Infrastructure subsystem..................................................................... 23  
4.3.4.  Interface with Control - Comma nd and Signalling subsystems................................. 23  
4.3.5.  Interface with Operation and tr affic management subsystem.................................... 24  
4.4. Operating rules........................................................................................................... 24  
4.5. Maintenance rules ...................................................................................................... 24  
4.6. Professional competencies ......................................................................................... 24  
4.7. Health and safety conditions ...................................................................................... 24  
5. Interoperability constituents....................................................................................... 25  
5.1. List of constituents ..................................................................................................... 25  
5.2. Constituents' performances and specifications .......................................................... 25  
5.2.1.  Overhead contact line................................................................................................. 25  
6. Assessment of conformity of the interoperabi lity constituents and EC verification of 
the subsystems............................................................................................................ 26  
6.1. Interoperability constituents....................................................................................... 26  
6.1.1.  Conformity assessment procedures............................................................................ 26  
6.1.2.  Application of modules.............................................................................................. 26  
6.1.3.  Innovative solutions for interoperability constituents................................................ 27  
6.1.4.  Particular assessment procedure for the interoperability constituent – overhead 
contact line ................................................................................................................. 27  
6.1.5.  EC declaration of conformity of interoperability constituent OCL ........................... 29  
6.2. Energy subsystem....................................................................................................... 29  
6.2.1.  General provisions ..................................................................................................... 29  
6.2.2.  Application of modules.............................................................................................. 29  
6.2.3.  Innovative solutions ................................................................................................... 29  
6.2.4.  Particular assessment procedures for Energy Subsystem .......................................... 30  
6.3. Sub-system containing Interoperability Cons tituents not holding an EC declaration 31  
6.3.1.  Conditions .................................................................................................................. 31  
6.3.2.  Documentation ........................................................................................................... 31  
6.3.3.  Maintenance of the subsystems certified according to 6.3.1 ..................................... 32  
7. Implementation .......................................................................................................... 32   
EN 9   EN 7.1. General ....................................................................................................................... 3 2 
7.2. Progressive strategy towards interoperability ............................................................ 32  
7.2.1.  Introduction................................................................................................................ 32  
7.2.2.  Migration strategy for vo ltage and frequency............................................................ 32  
7.2.3.  Migration strategy for OCL geometry ....................................................................... 33  
7.2.4.  Implementation of the on-ground en ergy data collecting system .............................. 33  
7.3. Application of this TSI to existing lines .................................................................... 34  
7.3.1.  Introduction................................................................................................................ 34  
7.3.2.  Upgrading/renewal of the OCL and/or the power supply.......................................... 34  
7.3.3.  Parameters related to maintenance............................................................................. 34  
7.3.4.  Existing subsystem that are not subjec t to a renewal or upgrading project ............... 34  
7.4. Specific cases ............................................................................................................. 35  
7.4.1.  General ....................................................................................................................... 3 5 
7.4.2.  List of specific cases .................................................................................................. 35  
Appendix A – Conformity assessment of interoperability constituents................................... 39  
Appendix B – EC verification of the energy subsystem .......................................................... 40  
Appendix C – Mean useful voltage.......................................................................................... 42  
Appendix D – Determination of the pantograph gauge ........................................................... 43  
Appendix E – List of referenced standards .............................................................................. 51  
Appendix F – Glossary.......................................................................................................... ... 52  
  
EN 10   EN 1. INTRODUCTION   
1.1. Technical Scope 
(1) This TSI concerns the infrastructure subsystem and part of the maintenance 
subsystem of the Union rail system in accordance with Article 1 of Directive 
2008/57/EC.  
(2) The energy subsystem is defined in Annex II (2.2) to Directive 2008/57/EC. 
(3) The technical scope of this TSI is further defined in Article 3 of this 
Regulation. 
1.2. Geographical Scope 
The geographical scope of this TSI is defi ned in Article 2(2) of this Regulation. 
1.3. Content of this TSI 
(1) In accordance with Article 5(3) of Directive 2008/57/EC, this TSI: 
(a) indicates its intended scope (section 2); 
(b) lays down essential requirements for the infrastructure subsystem 
(section 3); 
(c) establishes the functional and techni cal specifications to be met by the 
subsystem and its interfaces vis-à-vis other subsystems (section 4); 
(d) determines the interoperability constituents and interfaces which must be 
covered by European specifications , including European standards, 
which are necessary to achieve interoperability within the Union rail system (section 5); 
(e) states, in each case under consideration, which procedures are to be used 
in order to assess the conformity or the suitability for use of the interoperability constituents, on the one hand, or the EC verification of 
the subsystems, on the other hand (section 6); 
(f) indicates the strategy for implementing this TSI (section 7); 
(g) indicates, for the staff concerned, the professional competences and 
health and safety conditions at wo rk required for the operation and 
maintenance of the subsystem, as well as for the implementation of this TSI (section 4). 
In accordance with Article 5(5) of the Directive 2008/57/EC, provisions for 
specific cases are indicated in section 7. 
(2) Requirements in this TSI are valid for al l track gauge systems within the scope 
of this TSI, unless a paragraph refers to specific track gauge systems or to 
specific nominal track gauges. 
2. D
ESCRIPTION OF THE ENERGY SUBSYSTEM  
2.1. Definition  
(1) This TSI covers all fixed installations n ecessary to achieve interoperability that 
are required to supply trac tion energy to a train.  
EN 11   EN (2) The energy subsystem consists of: 
(a) substations: connected on the primary side to the high-voltage grid, with 
transformation of the high-voltage to a voltage and/or conversion to a power supply system suitable for the trains. On the secondary side, substations are connected to th e railway contact line system; 
(b) sectioning locations: electrical e quipment located at intermediate 
locations between substations to suppl y and parallel contact lines and to 
provide protection, isolati on and auxiliary supplies; 
(c) separation sections: equipment require d to provide the transition between 
electrically different systems or be tween different phases of the same 
electrical system; 
(d) contact line system: a system that di stributes the electrical energy to the 
trains running on the route and tran smits it to the trains by means of 
current collectors. The contact line system is also equipped with manually or remotely controlled di sconnectors which ar e required to 
isolate sections or groups of the contact line system according to 
operational necessity. Feeder lines ar e also part of the contact line 
system; 
(e) return circuit: all conductors which form the intended path for the 
traction return current. Therefore, so far as this aspect is concerned, the 
return circuit is part of the ener gy subsystem and has an interface with 
the infrastructure subsystem. 
(3) In accordance with Annex II, section 2.2 of Directive 2008/57/EC, the 
trackside of the electricity consumption measuring system, referred to in this 
TSI as on-ground energy data collection system, is set out in point 4.2.17 of 
this TSI. 
2.1.1.  Power supply 
(1) The objective of the power supply system is to supply every train with power 
in order to meet the planned timetable.  
(2) Basic parameters for power supply system are defined in point 4.2. 
2.1.2.  Geometry of the overhead contact line (OCL) and quality of current collection 
(1) The objective is to ensure reliable a nd continuous power transfer from the 
power supply system to the rolling stoc k. The interaction between the overhead 
contact line and the pantogr aph is an important aspect of interoperability. 
(2) Basic parameters referring to the geomet ry of the OCL and quality of current 
collection are set out in point 4.2. 
2.2. Interfaces with other subsystems  
2.2.1.  Introduction 
(1) The energy subsystem interfaces with othe r subsystems of the rail system in 
order to achieve the envisaged perfor mance. These subsystems are listed 
below: 
(a) Rolling stock; 
(b) 
Infrastructure;  
EN 12   EN (c) Trackside control command and signalling; 
(d) On-board control command and signalling; 
(e) Operation and traffic management. 
(2) Point 4.3 of this TSI sets out the functi onal and technical specification of these 
interfaces. 
2.2.2.  Interfaces of this TSI with the Safety in railway tunnels TSI 
(1) Requirements relating to the energy subsys tem for safety in railway tunnels are 
set out in the TSI relating safety in railway tunnels. 
3. ESSENTIAL REQUIREMENTS  
The following table indicates basic paramete rs of this TSI and their correspondence 
to the essential requirements as set out and numbered in Annex III of Directive 2008/57/EC. 
TSI 
point Title of TSI 
point Safety R&A Health Environ-
mental 
protectionTech. 
Compati-
bility Accessibility
4.2.3 Voltage and 
frequency - - - - 1.5 
2.2.3 - 
4.2.4 Parameters 
relating to supply 
system 
performance - - - - 1.5 
2.2.3 - 
4.2.5 Current capacity, 
DC systems, 
trains at standstill - - - - 1.5 
2.2.3 - 
4.2.6 Regenerative 
braking - - - 1.4.1 
1.4.3 1.5 
2.2.3 - 
4.2.7 Electrical 
protection 
coordination 
arrangements 2.2.1 - - - 1.5 - 
4.2.8 Harmonics and 
dynamic effects 
for AC traction 
power supply 
systems - - - 1.4.1 
1.4.3 1.5 - 
4.2.9 Geometry of the 
overhead contact 
line - - - - 1.5 
2.2.3 - 
4.2.10 Pantograph gauge 
- - - - 1.5  
2.2.3 -  
EN 13   EN TSI 
point Title of TSI 
point Safety R&A Health Environ-
mental 
protectionTech. 
Compati-
bility Accessibility
4.2.11 Mean contact 
force - - - - 1.5 
2.2.3 - 
4.2.12 Dynamic 
behaviour and 
quality of current 
collection - - - 1.4.1 
2.2.2 1.5 
2.2.3 - 
4.2.13 Pantograph 
spacing for 
overhead contact 
line design - - - - 1.5 
2.2.3 - 
4.2.14 Contact wire 
material - - 1.3.1 
1.3.2 1.4.1 
 1.5 
2.2.3 - 
4.2.15 Phase separation 
sections 2.2.1 - - 1.4.1 
1.4.3 1.5 
2.2.3 - 
4.2.16 System separation 
sections 2.2.1 - - 1.4.1 
1.4.3 1.5 
2.2.3 - 
4.2.17 On-ground energy 
data collecting 
system - - - - 1.5 - 
4.2.18 Protective 
provisions against 
electric shock 1.1.1 
1.1.3 
2.2.1 - - 1.4.1 
1.4.3 
2.2.2 1.5 - 
4.4 Operating rules 2.2.1 - - - 1.5 - 
4.5 Maintenance rules 1.1.1 
2.2.1 1.2 - - 1.5 
2.2.3 - 
4.6 Professional 
competencies 2.2.1 - - - - - 
4.7 Health and safety 
conditions 1.1.1 
1.1.3 
2.2.1 - - 1.4.1 
1.4.3 
2.2.2 - -  
EN 14   EN 4. CHARACTERISATION OF THE SUBSYSTEM  
4.1. Introduction 
(1) The whole rail system, to which Dir ective 2008/57/EC applies and of which 
the energy subsystem is a part, is an integrated system whose consistency 
needs to be verified. This consistency must be checked, in particular, with 
regard to the specifications of the energy subsystem, its interfaces vis-à-vis the system in which it is integrated, as well as the operating and maintenance rules. 
The functional and tech nical specifications of the subsystem and its interfaces, 
described in points 4.2 and 4.3, do not impos e the use of specific technologies 
or technical solutions, except where th is is strictly necessary for the 
interoperability of the rail network.  
(2) Innovative solutions for interoperabili ty, which do not fulfil requirements 
specified in this TSI and are not assessabl e as stated in this TSI, require new 
specifications and/or new assessment me thods. In order to allow technological 
innovation, these specifications and asse ssment methods shall be developed by 
the process for innovative solutions described in points 6.1.3 and 6.2.3.  
(3) Taking account of all the applicable essential requirements, the energy 
subsystem is characterised by the specif ications set out in points 4.2 to 4.7.  
(4) Procedures for the EC verification of the energy subsystem are indicated in 
point 6.2.4 and Appendix B, Table B.1, of this TSI.  
(5) For specific cases, see point 7.4.  
(6) Where reference is made to EN standards in this TSI, any variations called 
"national deviations" or "special nati onal conditions" in the EN standards are 
not applicable and do not form part of this TSI.  
4.2. Functional and technical speci fications of the subsystem 
4.2.1.  General provisions 
The performance to be achieved by the Energy subsystem is determined at least by 
the required performance of the rail system with respect to: 
(a) the maximum line speed; 
(b) type(s) of train; 
(c) train service requirements; 
(d) power demand of the trains at the pantographs. 
4.2.2.  Basic parameters characteri sing the energy subsystem 
The basic parameters characterising the energy subsystem are: 
4.2.2.1.  Power supply: 
(a) Voltage and frequency (4.2.3); 
(b) Parameters relating to supply system performance (4.2.4); 
(c) Current capacity, DC systems, trains at standstill (4.2.5); 
(d) Regenerative braking (4.2.6); 
(e) Electrical protection coordi nation arrangements (4.2.7); 
(f) 
Harmonics and dynamic effects for AC traction power supply systems (4.2.8).  
EN 15   EN 4.2.2.2.  Geometry of the OCL and quality of current collection: 
(a) Geometry of the overh ead contact line (4.2.9); 
(b) Pantograph gauge (4.2.10); 
(c) Mean contact force (4.2.11); 
(d) Dynamic behaviour and quality of current collection (4.2.12); 
(e) Pantograph spacing for overhead  contact line design (4.2.13); 
(f) Contact wire material (4.2.14); 
(g) Phase separation sections (4.2.15); 
(h) System separation sections (4.2.16). 
4.2.2.3.  On-ground energy data collecting system (4.2.17) 
4.2.2.4.  Protective provisions agains t electric shock (4.2.18) 
4.2.3.  Voltage and frequency 
(1) The voltage and frequency of the Energy subsystem shall be one of the four 
systems, determined in accordance with section 7:  
(a) AC 25 kV, 50 Hz; 
(b) AC 15 kV, 16,7 Hz; 
(c) DC 3 kV; 
(d) DC 1,5 kV. 
(2) The values and limits of the voltage and frequency shall comply with EN 
50163:2004, clause 4 for the selected system. 
4.2.4.  Parameters relating to supply system performance  
(1) The following parameters shall be taken in consideration: 
(a) the maximum train current (4.2.4.1); 
(b) the power factor of trains and the mean useful voltage (4.2.4.2). 
4.2.4.1.  Maximum train current 
The energy subsystem design shall ensure th e ability of the power supply to achieve 
the specified performance and permit the operation of trains with a power less than 2 
MW without power or current limitation.  
4.2.4.2.  Mean useful voltage 
The calculated mean useful voltage “at the pantograph” shall comply with EN 
50388:2012, clause 8 (except clause 8.3 that is replaced by point C.1 of Appendix 
C). Simulation shall take into account values of the real power factor of trains. Point 
C.2 of Appendix C provides additional in formation to clause 8.2 of the EN 
50388:2012.  
4.2.5.  Current capacity, DC system s, trains at standstill 
(1) The OCL of DC systems shall be desi gned to sustain 300 A (for a 1,5 kV 
supply system) and 200 A (for a 3 kV supply system), per pantograph when the train is at standstill.  
EN 16   EN (2) The current capacity at standstill shall be  achieved for the test value of static 
contact force given in table 4 of clause 7.2 of EN 50367:2012.  
(3) The OCL shall be designed taking into account the temperature limits in 
accordance with EN 50119:2009, clause 5.1.2. 
4.2.6.  Regenerative braking 
(1) AC power supply systems shall be designe d to permit the use of regenerative 
braking able to exchange power seamlessl y either with other trains or by any 
other means. 
(2) DC power supply systems shall be designe d to permit the use of regenerative 
braking at least by exchangi ng power with other trains. 
4.2.7.  Electrical protection co ordination arrangements 
Electrical protection coordina tion design of the energy subsystem shall comply with 
the requirements detailed  in EN 50388:2012, clause 11. 
4.2.8.  Harmonics and dynamic effects for AC traction power supply systems 
(1) The interaction of traction power supply system and rolling stock can lead to 
electrical instabilit ies in the system. 
(2) In order to achieve electrical system compatibility, harmonic overvoltages shall 
be limited below critical values a ccording to EN 50388:2012, clause 10.4.  
4.2.9.  Geometry of the overhead contact line 
(1) The overhead contact line shall be de signed for pantographs with the head 
geometry specified in the LOC&PAS TSI, point 4.2.8.2.9.2 taking into account 
the rules set out in poi nt 7.2.3 of this TSI. 
(2) The contact wire height and the lateral deviation of the contact wire under the 
action of a cross-wind are factors which gove rn the interoperability of the rail 
network. 
4.2.9.1.  Contact wire height 
(1) The permissible data for contact wi re height is given in Table 4.2.9.1. 
Table 4.2.9.1 - Contact wire height 
Description v ≥ 250 [km/h]  v < 250 [km/h]  
Nominal contact wire height (mm) Between 5080 and 5300 Between 5000 and 5750 
Minimum design contact wire 
height (mm) 5080 In accordance with  EN 50119:2009, 
clause 5.10.5 depending on the chosen 
gauge 
Maximum design contact wire height (mm) 5300 6200
1) 
1) Taking into account tolerances and uplift in accordance with EN 50119:2009 figure 1, the 
maximum contact wire height sha ll not be greater than 6500 mm. 
(2) For the relation between the contact wire heights and pantograph working 
heights see EN 50119:2009 figure 1.  
EN 17   EN (3) At level crossings the contact  wire height shall be de termined by national rules 
or in the absence of national rule s, according to EN 50122-1:2011, clauses 
5.2.4 and 5.2.5.  
(4) For the track gauge system 1520 and 1524 mm the values for contact wire 
height are as follows: 
(a) Nominal contact wire height: between 6000 mm and 6300 mm; 
(b) Minimum design contact wire height: 5550 mm; 
(c) Maximum design contact wire height: 6800 mm. 
4.2.9.2.  Maximum lateral deviation 
(1) The maximum lateral deviation of the c ontact wire in relation to the track 
centre line under action of a cross wind shall be in accordance to table 4.2.9.2. 
Table 4.2.9.2- Maximum lateral deviation depending on the pantograph length 
Pantograph length (mm) Maximum lateral deviation (mm) 
1600 400 1) 
1950 550 1) 
1) The values shall be adjusted taking into account the movement of the pantograph and track 
tolerances according to Annex D.1.4. 
(2) In the case of the multi-rail track, the requirement for lateral deviation shall be 
fulfilled for each pair of rails (designed, to  be operated as separated track) that 
is intended to be assessed against TSI. 
(3) Track gauge system1520 mm: 
For Member States applying the pantograph profile according to LOC&PAS 
TSI, point 4.2.8.2.9.2.3 the maximum lateral deviation of the contact wire in 
relation to the pant ograph centre under ac tion of a cross wind shall be 500 mm. 
4.2.10.  Pantograph gauge 
(1) No part of the energy sub-system shall enter the mechanical kinematic 
pantograph gauge (see Appendix D figure D .2) except for the contact wire and 
steady arm. 
(2) The mechanical kinematic pantograph gauge for interoperable lines is 
determined using the method shown in Appendix D.1.2 and the pantograph 
profiles defined in LOC&PAS TSI, points 4.2.8.2.9.2.1 and 4.2.8.2.9.2.2.  
(3) This gauge shall be calculated usi ng a kinematic method, with values: 
(a) for the pantograph sway e pu of 0,110 m at the lower verification height 
h`u = 5,0 m and 
(b) for the pantograph sway e po of 0,170 m at the upper verification height 
h`o = 6,5 m, 
in accordance with  point D.1.2.1.4 of Appendix D and other values in 
accordance with point D.1.3 of Appendix D.   
EN 18   EN (4) Track gauge system 1520 mm:  
For Member States applying the pantograph profile according to LOC&PAS 
TSI, point 4.2.8.2.9.2.3 the static gauge ava ilable for pantograph is defined in 
point D.2 of Appendix D. 
4.2.11.  Mean contact force 
(1) The mean contact force F m is the statistical mean value of the contact force. F m 
is formed by the static, dynamic and aerodynamic components of the pantograph contact force.  
(2) The ranges of F
m for each of the power supply systems are defined in EN 
50367:2012 Table 6.  
(3) The overhead contact lines sh all be designed to be cap able to sust ain the upper 
design limit of F m given in EN 50367:2012 Table 6. 
(4) The curves apply to speed up to 320 [km/h]. For speeds above 320 [km/h] 
procedures set out in point 6.1.3 shall apply.  
4.2.12.  Dynamic behaviour and qualit y of current collection 
(1) Depending on the assessment method, the overhead contact line shall achieve 
the values of dynamic performance and c ontact wire uplift (at the design speed) 
set out in Table 4.2.12. 
Table 4.2.12 – Requirements for dynamic be haviour and current collection quality 
Requirement  v ≥ 250[km/h] 250 > v > 160 [km/h] v ≤ 160 [km/h] 
Space for steady arm uplift 2 S0 
Mean contact force F m See 4.2.11 
Standard deviation at 
maximum line speed σmax [N]0,3 F m 
Percentage of arcing at 
maximum line speed, NQ 
[%] (minimum duration of arc 5ms) ≤ 0,2 ≤ 0,1 for AC systems 
≤ 0,2 for DC systems ≤ 0,1 
(2) S0 is the calculated, simulated or measured uplift of the contact wire at a steady 
arm, generated in normal operating condi tions with one or more pantographs 
with the upper limit of F m at the maximum line speed. When the uplift of the 
steady arm is physically limited due to th e overhead contact li ne design, it is 
permissible for the necessary space to be reduced to 1,5 S 0 (refer to EN 
50119:2009, clause 5.10.2). 
(3) Maximum force (F max) is usually within the range of F m plus three standard 
deviations σmax; higher values may occur at par ticular locations and are given 
in EN 50119:2009, table 4, clause 5.2.5.2. For rigid components such as 
section insulators in overhead contact  line systems, the contact force can 
increase up to a maximum of 350 N.  
EN 19   EN 4.2.13.  Pantograph spacing for overhead contact line design 
The overhead contact line shall be desi gned for a minimum of two pantographs 
operating adjacently, in such a way that minimum spacing centre line to centre line 
of adjacent pantographs heads is equal or lower than values set out in one column 
“A”, “B”, or “C” selected from Table 4.2.13:  
Table 4.2.13 – Pantograph spacing for OCL design 
4.2.14.  Contact wire material 
(1) The combination of contact wire material and contact strip material has a 
strong impact on the wear of cont act strips and contact wire.  
(2) Permissible contact strip materi als are defined in point 4.2.8.2.9.4.2 of 
LOC&PAS TSI. 
(3) Permissible materials for contact wires are copper and copper-alloy. The 
contact wire shall comply with th e requirements of EN 50149:2012, clauses 
4.2, (excluding the reference to annex B of the standard ) 4.3 and 4.6 to 4.8. 
4.2.15.  Phase separation sections 
4.2.15.1.  General 
(1) The design of phase separation sections sh all ensure that trai ns can move from 
one section to an adjacent one wit hout bridging the two phases. Power 
consumption of the train (traction, a uxiliaries and no-load current of the 
transformer) shall be brought to zero before entering the phase separation section. Adequate means (except for the short separation s ection) shall be 
provided to allow a train th at is stopped within the phase separation section to 
be restarted.  
(2) The overall length D of neutral sections  is defined in EN 50367:2012, clause 4. 
For the calculation of D clearances  in accordance to EN 50119:2009, clause 
5.1.3 and an uplift of S
0 shall be taken into account. 
4.2.15.2.  Lines with speed v ≥ 250 [km/h] 
(1) Two types of designs of phase separa tion sections may be adopted, either: Design speed 
[km/h] AC Minimum 
distance (m) 
 3 kV DC 
Minimum 
distance (m) 1,5 kV DC 
Minimum 
distance (m) 
Type A B C A B C A B C 
v ≥ 250 200 200 200 200 35 
160 < v < 250 200 85 35 200 115 35 200 85 35 
120 < v ≤ 160 85 85 35 20 20 20 85 35 20 
80 < v ≤ 120 20 15 15 20 15 15 35 20 15 
v ≤ 80 8 8 8 8 8 8 20 8 8  
EN 20   EN (a) a phase separation design where all th e pantographs of the longest TSI 
compliant trains are within the neut ral section. The overa ll length of the 
neutral section shall be at least 402 m. 
For detailed requirements see EN 50367:2012, Annex A.1.2, or 
(b) a shorter phase separation with thr ee insulated overlap s as shown in 
EN 50367:2012, Annex A.1.4. The overall le ngth of the neutral section is 
less than 142 m including cl earances and tolerances. 
4.2.15.3.  Lines with speed v < 250 [km/h] 
The design of separation sections shall norm ally adopt solutions as described in EN 
50367:2012, Annex A.1. Where an alternativ e solution is proposed, it shall be 
demonstrated that the alternative is at least as reliable. 
4.2.16.  System separation sections 
4.2.16.1.  General 
(1) The design of system separation sections sh all ensure that trains can move from 
one power supply system to an adjacent different power supply system without 
bridging the two systems. There are two methods for tr aversing system 
separation sections: 
(a) with pantograph raised and touching the contact wire; 
(b) with pantograph lowered and not  touching the contact wire. 
(2) The neighbouring Infrastructure Manage rs shall agree either (a) or (b) 
according to the prevailing circumstances. 
(3) The overall length D of neutral sections  is defined in EN 50367:2012, clause 4. 
For the calculation of D clearances  in accordance to EN 50119:2009, clause 
5.1.3 and an uplift of S 0 shall be taken into account. 
4.2.16.2.  Pantographs raised 
(1) Power consumption of the train (traction, auxiliaries and no-l oad current of the 
transformer) shall be brought to zero before entering the system separation 
section.  
(2) If system separation sections are trav ersed with pantographs raised to the 
contact wire, their functional de sign is specified as follows: 
(a) the geometry of different elements of the overhead contact line shall 
prevent pantographs short-circuiti ng or bridging both power systems; 
(b) provision shall be made in the ener gy subsystem to avoid bridging of 
both adjacent power supply systems should the opening of the on-board 
circuit breaker(s) fail; 
(c) variation in contact wire height alon g the entire separation section shall 
fulfil requirements set in EN 50119:2009, clause 5.10.3. 
4.2.16.3.  Pantographs lowered 
(1) This option shall be chosen if the c onditions of operation with pantographs 
raised cannot be met.  
EN 21   EN (2) If a system separation section is traverse d with pantographs lowered, it shall be 
designed so as to avoid the electri cal connection of the two power supply 
systems by an unintentiona lly raised pantograph.  
4.2.17.  On-ground energy data collecting system  
(1) Point 4.2.8.2.8 of LOC&PAS TSI contains the requirements for on-board 
Energy Measuring Systems (EMS) intended to produce and transmit the Compiled Energy Billing Data (CEBD) to an on-ground energy data collecting 
system. 
(2) The on-ground energy data collecting syst em shall receive, store and export 
CEBD without corrupting it. 
4.2.18.  Protective provisions against electric shock 
Electrical safety of the overh ead contact line system and protection agai nst electric 
shock shall be achieved by compliance with EN 50122-1:2011+A1:2011, clauses 5.2.1 (only for public areas), 5.3.1, 5.3.2, 6.1, 6.2 (excluding requirements for 
connections for track circuits) and regarding AC voltage limits for the safety of persons by compliance with 9.2.2.1 and 9.2.2.2 of the standard and regarding DC voltage limits by compliance with  9.3.2.1 and 9.3.2.2. of the standard. 
4.3. Functional and technical speci fications of the interfaces 
4.3.1.  General requirements 
From the standpoint of technical compatibil ity, the interfaces are listed in subsystem 
order as follows: rolling stock, infrastruc ture, control - comma nd and signalling, and 
operation and traffic management. 
4.3.2.  Interface with Rolling Stock subsystem. 
Reference in the ENE TSI Ref erence in the LOC & PAS TSI  
Parameter Point Parameter Point 
Voltage and 
frequency 4.2.3 Operation within range 
of voltages and frequencies 4.2.8.2.2 
Parameters 
relating to supply system performance: 
- max train current 
- power factor of trains and the mean useful voltage  
  
4.2.44.2.4 
  
 Max current from OCL
Power factor 
 
  
 
4.2.8.2.4 
4.2.8.2.6 
 
 
Current capacity, DC systems, trains at standstill  
4.2.5 Maximum current at 
standstill 4.2.8.2.5  
EN 22   EN Reference in the ENE TSI Ref erence in the LOC & PAS TSI  
Parameter Point Parameter Point 
Regenerative 
braking 4.2.6 Regenerative brake 
with energy to OCL 4.2.8.2.3 
Electrical 
protection coordination arrangements 4.2.7 Electrical protection of 
the train 4.2.8.2.10 
Harmonics and 
dynamic effects for AC traction power supply systems  4.2.8 System energy 
disturbances for AC systems 4.2.8.2.7 
Geometry of the 
overhead contact line 4.2.9 Working range in 
height of pantograph 
Pantograph head 
geometry  4.2.8.2.9.1 
 
4.2.8.2.9.2 
Pantograph gauge 4.2.10 
Appendix D Pantograph head 
geometry 
Gauging 4.2.8.2.9.2 
4.2.3.1 
Pantograph static 
contact force 4.2.8.2.9.5 Mean contact 
force 4.2.11 
Pantograph contact 
force and dynamic behaviour 4.2.8.2.9.6 
Dynamic 
behaviour and 
quality of current collection 4.2.12 Pantograph contact 
force and dynamic 
behaviour 4.2.8.2.9.6 
Pantograph 
spacing for overhead contact line design 4.2.13 Arrangements of 
pantographs 4.2.8.2.9.7 
Contact wire 
material 4.2.14 Contact strip material 4.2.8.2.9.4  
EN 23   EN Reference in the ENE TSI Ref erence in the LOC & PAS TSI  
Parameter Point Parameter Point 
Separation 
sections: 
phase system  
4.2.15 4.2.16 Running through phase 
or system separation section 4.2.8.2.9.8 
On-ground energy 
data collecting system  4.2.17 On-board Energy 
measurement system 4.2.8.2.8 
4.3.3.  Interface with Infrastructure subsystem 
Reference in the ENE TSI Reference in the INF TSI 
Parameter Point Parameter Point 
Pantographs gauge 4.2.10 Structure gauge 4.2.3.1 
 
4.3.4.  Interface with Control - Comm and and Signalling subsystems 
(1) The interface for power control is an  interface between the energy and the 
rolling stock subsystems. 
(2) However, it is controlled via the c ontrol-command and signalling subsystems 
and consequently the interface is specif ied in the CCS TSI and the LOC & PAS 
TSI. 
(3) The relevant information to perform the switching of th e circuit breaker, 
change of maximum train current, ch ange of the power supply system and 
pantograph management shall be tran smitted via ERTMS when the line is 
equipped with ERTMS.  
(4) Harmonic currents affecting control-co mmand and signalling subsystems are 
set out in the CCS TSI.  
EN 24   EN 4.3.5.  Interface with Operation and traffic management subsystem 
Reference in the ENE TSI Reference in the OPE TSI 
Parameter Point Parameter Point 
Maximum train 
current  4.2.4.1  Train composition 
Preparation of the Route 
Book 4.2.2.5 
4.2.1.2.2.1 
Separation sections: Phase System  
4.2.15 4.2.16 Train composition 
Preparation of the Route 
Book 4.2.2.5 
4.2.1.2.2.1 
4.4. Operating rules 
(1) Operating rules are developed within the procedures described in the 
infrastructure manager safety management system. These rules take into account the documentation related to ope ration, which forms a part of the 
technical file, as required in Article 18(3) and as set out  in Annex VI of 
Directive 2008/57/EC. 
(2) In certain situations involving pre-pl anned works, it may be necessary to 
temporarily derogate from the specifica tions of the energy subsystem and its 
interoperability constituents define d in sections 4 and 5 of the TSI. 
4.5. Maintenance rules 
(1) Maintenance rules are developed within  the procedures described in the 
infrastructure manager safety management system. 
(2) The maintenance file for ICs and subsyste m elements shall be prepared before 
placing a subsystem into service as the pa rt of the technical file accompanying 
the declaration of verification. 
(3) The maintenance plan shall be drawn up for the subsystem to ensure that the 
requirements set out in this TSI ar e maintained during its lifetime.  
4.6. Professional competencies  
The professional competencies of staff re quired for the operation and maintenance of 
the energy subsystem are not set out in this  TSI, and are covere d by the procedures 
described in the infrastructure manager safety management system. 
4.7. Health and safety conditions 
(1) The health and safety conditions of  staff required for the operation and 
maintenance of the energy subsystem shall be in compliance with the relevant European and the national legislation. 
(2) This issue is also covered by the proce dures described in the infrastructure 
manager safety management system.  
EN 25   EN 5. INTEROPERABILITY CONSTITUENTS  
5.1. List of constituents 
(1) The interoperability constituents are c overed by the relevant provisions of 
Directive 2008/57/EC, and are listed belo w so far as the energy subsystem is 
concerned. 
(2) Overhead contact line: 
(a) The interoperability constituent overhead contact line consists of the 
components listed below to be installe d within an energy subsystem, and 
the associated design and configuration rules.  
(b) The components of an overhead cont act line are an arrangement of 
wire(s) suspended over the railway li ne for supplying electricity to 
electric trains, together with associated fittings, in-line insulators and other attachments including feeders a nd jumpers. It is placed above the 
upper limit of the vehicle gauge, suppl ying vehicles w ith electrical 
energy through pantographs.  
(c) The supporting components such as cantilevers, masts and foundations, 
return conductors, auto-t ransformer feeders, switches and other insulators 
are not part of the interoperability constituent overhead contact line. They are covered by subsystem requirements so far as interoperability is 
concerned. 
(3) The conformity assessment shall cover the phases and characteristics as 
indicated in point 6.1.4 and by X in the Ta ble A.1 of Appendix A to this TSI. 
5.2. Constituents' performances and specifications  
5.2.1.  Overhead contact line 
5.2.1.1.  Geometry of the OCL 
The design of the overhead contact line shall comply with point 4.2.9. 
5.2.1.2.  Mean contact force 
The overhead contact line shall be desi gned by using the m ean contact force F
m 
stipulated in point 4.2.11.  
5.2.1.3.  Dynamic behaviour 
Requirements for dynamic behaviour of the ove rhead contact line ar e set out in point 
4.2.12. 
5.2.1.4.  Space for steady arm uplift 
The overhead contact line shall be designed providing the required space for uplift as 
set out in point 4.2.12. 
5.2.1.5.  Pantograph spacing for overh ead contact line design 
The overhead contact line shall be designe d for pantograph spacing as specified in 
point 4.2.13. 
5.2.1.6.  Current at standstill 
For DC systems, the overhead contact line shall be designed for the requirements set 
out in point 4.2.5.   
EN 26   EN 5.2.1.7.  Contact wire material 
The contact wire material shall comply with the requirements set out in point 4.2.14. 
6. ASSESSMENT OF CONFORMITY OF THE IN TEROPERABILITY CONSTITUENTS AND EC 
VERIFICATION OF THE SUBSYSTEMS  
Modules for the procedures for assessment of conformity, suitab ility for use and EC 
verification modules are described in  the Commission Decision 2010/713/EU. 
6.1. Interoperability constituents 
6.1.1.  Conformity assessment procedures 
(1) The conformity assessment procedures of interoperability  constituents as 
defined in section 5 of this TSI shall be  carried out by application of relevant 
modules. 
(2) Assessment procedures for particular requirements for interoperability 
constituent are set out in point 6.1.4. 
6.1.2.  Application of modules 
(1) The following modules for conformity  assessment of interoperability 
constituents are used: 
(a) CA Internal production control 
(b) CB EC type examination 
(c) CC Conformity to type base d on internal production control 
(d) CH Conformity based on full quality management system 
(e) CH1 Conformity based on full quality management system plus design 
examination 
Table 6.1.2 - Modules for conformity a ssessment to be applied for ICs 
Procedures Modules 
Placed on the EU 
market before entry in force of relevant TSIs CA or CH 
Placed on the EU 
market after entry in force of relevant TSIs CB + CC or CH1 
 
 
(2) The modules for conformity assessment of interoperability constituents shall be 
chosen from those shown in Table 6.1.2. 
(3) In the case of products placed on the mark et before the publication of relevant 
TSIs, the type is consider ed to have been approve d and therefore EC type 
examination (module CB) is not necessa ry, provided that the manufacturer 
demonstrates that tests a nd verification of interopera bility constituents have 
been considered successful for prev ious applications under comparable 
conditions and are in conformity with the requirements of this TSI. In this case  
EN 27   EN these assessments shall remain valid in th e new application. If  it is not possible 
to demonstrate that the solution is pos itively proven in the past, the procedure 
for ICs placed on the EU market afte r publication of th is TSI applies. 
6.1.3.  Innovative solutions for inte roperability constituents 
(1) If an innovative solution as mentione d in point 4.1 is proposed for an 
interoperability constituent as defined in point 5.2, the applicant shall state the deviations from the relevant provision of this TSI and submit them to the 
Commission for analysis. 
(2) In case the analysis results  in a favourable opinion, the appropriate functional 
and interface specifications  for the constituent and the assessment method will 
be developed under the aut horisation of the Commission. 
(3) The appropriate functional and interf ace specifications and the assessment 
methods so produced shall be incorporated  in the TSI by the revision process.  
(4) By the notification of a decision of th e Commission, taken in accordance with 
Article 29 of Directive 2008/57/EC, the innovative solution may be permitted to be used before being incorporated  into the TSI by the revision process. 
6.1.4.  Particular assessment procedure for the interoperability constituent – overhead 
contact line 
6.1.4.1.  Assessment of dynamic behaviour a nd quality of current collection 
(1) Methodology: 
(a) The assessment of the d ynamic behaviour and the quality of the current 
collection involves the overhead contact  line (energy subsystem) and the 
pantograph (rolling stock subsystem). 
(b) Compliance with the requirements on dynamic behaviour shall be 
verified by assessment of: 
– Contact wire uplift 
and either: 
– Mean contact force F
m and standard deviation σmax  
or – Percentage of arcing 
(c) The Contracting Entity shall decl are the method to be used for 
verification.  
(d) The design of overhead contact line shall be assessed with a simulation 
tool validated according with EN 50318:2002 and by measurement according to EN 50317:2012. 
(e) The measurement can be conducted on a specially constructed test 
section or on a line where the overhead  contact line is under construction. 
(2) Simulation: 
(a) For the purposes of simulation and analys is of the results, representative 
features (for example tunnels, crossove rs, neutral sections etc.) shall be 
taken into account.  
EN 28   EN (b) The simulations shall be made using at least two different TSI compliant 
types of pantograph for the appropriate speed6) and supply system, up to 
the design speed of the proposed interoperability constituent overhead contact line. 
(c) It is permitted to perform the simulation using types of pantograph that 
are under the process of IC certifica tion, provided that they fulfil the 
other requirements of LOC&PAS TSI.  
(d) The simulation shall be performed for single pantograph and multiple 
pantographs with spacing according to the requirements set in point 
4.2.13. 
(e) In order to be acceptable, the simulate d current collection quality shall be 
in accordance with point 4.2.12 for uplift, mean contact force and standard deviation for each of the pantographs. 
(3) Measurement : 
(a) If the simulation results are acceptable, a site dynamic test with a 
representative section of the ne w overhead contact line shall be 
undertaken. 
(b) This measurement can be done before  putting into service or under full 
operation conditions. 
(c) For the above mentioned site test, on e of the two types of the pantograph 
chosen for the simulation, shall be inst alled on a rolling stock that allows 
the appropriate speed on th e representative section. 
(d) The tests shall be performed at least for the worst case arrangements of 
the pantographs regardin g the interaction performance derived from the 
simulations  
(e) The mean contact force of each pant ograph shall fulfil the requirements 
of the clause 4.2.11 up to envisaged design speed of the OCL under test. 
(f) In order to be acceptable, the measured  current collection quality shall be 
in accordance with point  4.2.12, for uplift, and either the mean contact 
force and standard deviation, or percentage of arcing. 
(g) If all the above assessments are pass ed successfully, the tested overhead 
contact line design shall be considered  to be compliant and may be used 
on lines where the characteristics of the design are compatible. 
(h) Assessment of dynamic behaviour and quality of current collection in 
LOC&PAS TSI are set out in the point 6.1.3.7. 
6.1.4.2.  Assessment of current at standstill 
The conformity assessment shall be car ried out in accordance with EN 50367:2012, 
Annex A.3 for the static fo rce defined in point 4.2.5. 
                                                
 
6 i.e. the speed of the two types of pantograph shall be  at least equal to the design speed of the simulated 
overhead contact line.  
EN 29   EN 6.1.5.  EC declaration of conformity of interoperability constituent OCL 
(1) According to Annex IV, section 3 of Di rective 2008/57/EC, the EC declaration 
of conformity shall be accompanied by st atement setting out the condition of 
use: 
(a) maximum design speed; 
(b) nominal voltage and frequency; 
(c) nominal current rating; 
(d) accepted pantograph profile. 
6.2. Energy subsystem 
6.2.1.  General provisions 
(1) At the request of the applicant, the no tified body carries out EC verification in 
accordance with Article 18 of Directive 2008/57/EC, and in accordance with 
the provisions of the relevant modules. 
(2) If the applicant demonstrates that tests or verifications of an energy subsystem 
have been successful for previous a pplications of a design in similar 
circumstances, the notified body shall take these tests and verifications into account for the EC verification. 
(3) Assessment procedures for particular requirements for subsystem are set out in 
point 6.2.4. 
(4) The applicant shall draw up the EC decl aration of verifica tion for the energy 
subsystem in accordance with Article 18(1) of and Annex V to Directive 
2008/57/EC. 
6.2.2.  Application of modules 
For the EC verification procedure of th e energy subsystem the applicant or its 
authorised representative established within the Community may choose either: 
(a) Module SG: EC verification ba sed on unit verification, or 
(b) Module SH1: EC verification based on full quality management system plus 
design examination. 
6.2.2.1.  Application of module SG 
In case of module SG, the notified body may take into account evidence of 
examinations, checking or tests that ha ve been successfully performed, under 
comparable conditions by other bodies or  by (or on behalf of ) the applicant. 
6.2.2.2.  Application of module SH1 
The module SH1 may be chosen only wher e the activities contributing to the 
proposed subsystem to be verified (des ign, manufacturing, assembling, installation) 
are subject to a quality management system for design, production, final product 
inspection and testing, approved an d surveyed by a notified body. 
6.2.3.  Innovative solutions 
(1) If the subsystem includes an innovative solution as mentioned in point 4.1, the 
applicant shall state the deviation from  the relevant provision of the TSI and 
submit them to the Commission.   
EN 30   EN (2) In case of favourable opinion, the a ppropriate functional and interface 
specifications, and the assessment methods  for this solution will be developed. 
(3) The appropriate functional and interf ace specifications and the assessment 
methods so produced shall then be inco rporated in the TSI by the revision 
process. By the notification of a decision of the Commission, taken in 
accordance with Article 29 of Direct ive, the innovative solution may be 
permitted to be used before being incorporated into the TSI by the revision process. 
6.2.4.  Particular assessment procedures for Energy Subsystem 
6.2.4.1.  Assessment of mean useful voltage 
(1) The assessment shall be demonstrat ed in accordance with EN 50388:2012, 
clause 15.4. 
(2) The assessment shall be demonstrated  only in the case of newly build or 
upgraded sub-systems. 
6.2.4.2.  Assessment of regenerative braking 
(1) The assessment for AC power supply fixed installations shall be demonstrated 
according to EN 50388:2012, clause 15.7.2. 
(2) The assessment for DC power supply shall be demonstrated by a design 
review. 
6.2.4.3.  Assessment of electrical protec tion coordination arrangements 
The assessment shall be demonstrated fo r design and operation of substations in 
accordance with EN 50388:2012, clause 15.6. 
6.2.4.4.  Assessment of harmonics and dynamic effect s for AC traction power supply systems 
(1) A compatibility study shall be carried out according to EN 50388:2012, clause 
10.3. 
(2) This study shall be carried out only in the case of introducing converters with 
active semi-conductors in the power supply system. 
(3) The notified body shall assess if criter ia of EN 50388:2012, clause 10.4 are 
fulfilled. 
6.2.4.5.  Assessment of dynamic behaviour and quality of  current collection (integration into a 
subsystem) 
(1) The main goal of this test is to id entify allocation design and construction 
errors but not to assess the basic design in principle.  
(2) Measurements of the interaction paramete rs shall be carried out in accordance 
with EN 50317:2012.  
(3) These measurements shall be carried out with an interoperability constituent 
pantograph, exhibiting the mean contact force characteristics as required by 
point 4.2.11 of this TSI for the design speed of the line considering aspects 
related to minimum speed, and siding tracks.  
(4) 
The installed overhead contact line shall be accepted if the measurement results 
comply with the requirements in point 4.2.12.  
EN 31   EN (5) Assessment of dynamic behaviour and quality of current  collection for 
integration of the pantograph into rolli ng stock subsystem are set out in point 
6.2.3.20 of LOC&PAS TSI. 
6.2.4.6.  Assessment of the Protective provi sions against electric shock  
(1) For each installation it shall be demonstrat ed that the basic design of protective 
provisions against electric shock is in accordance with point 4.2.18. 
(2) In addition the existence of rules and procedures which ensure that the 
installation is installed as designed shall be checked.  
(3) This assessment shall be done during the design review only.  
6.2.4.7.  Assessment of maintenance plan 
(1) The assessment shall be carried out by verifying the existence of the 
maintenance plan. 
(2) The notified body is not responsible for a ssessing the suitability of the detailed 
requirements set out in the plan.  
6.3. Sub-system containing Interoperability  Constituents not holding an EC 
declaration 
6.3.1.  Conditions 
(1) Until 31 May 2021, a notified body is permitte d to issue an EC certificate of 
verification for a subsystem, even if so me of the interoperability constituents 
incorporated within the subsystem are not covered by the relevant EC declarations of conformity and/or suitab ility for use according to this TSI, if 
the following criteria are complied with: 
(a) the conformity of the subsystem has been checked against the 
requirements of section 4 and in rela tion to points 6.2 and 6.3 and section 
7, except point 7.4, of this TSI by the notified body. Furthermore the conformity of the ICs to section 5 and point 6.1 does not apply, and 
(b) the interoperability constituents, which are not covered by the relevant 
EC declaration of conformity and/or su itability for use, have been used in 
a subsystem already approved and put in service in at least one of the Member State before the entry in force of this TSI. 
(2) EC Declarations of conformity and/or suitability for use shall not be drawn up 
for the interoperability constituents assessed in this manner. 
6.3.2.  Documentation 
(1) The EC certificate of verification of th e subsystem shall indicate clearly which 
interoperability constituents have been  assessed by the notified body as part of 
the subsystem verification. 
(2) The EC declaration of verification of the subsystem shall indicate clearly: 
(a) which interoperability constituents have been assessed as part of the 
subsystem,  
(b) confirmation that the subsystem contains  the interoperability constituents 
identical to those verified as part of the subsystem,  
EN 32   EN (c) for those interoperability constituents, the reason(s) why the 
manufacturer did not provide an EC declaration of conformity and/or 
suitability for use before its incorpor ation into the subsystem, including 
the application of national rules no tified under Article 17 of Directive 
2008/57/EC. 
6.3.3.  Maintenance of the subsystems  certified according to 6.3.1 
During the transition period as well as after the transition period has ended, until the 
subsystem is upgraded or renewed (taking in to account the decision  of Member State 
on application of TSIs), the interoperabi lity constituents which do not hold an EC 
Declaration of conformity and/or suitabi lity for use and of the same type are 
permitted to be used as maintenance related replacements (spare parts) for the subsystem, under the responsibility of the body responsible for maintenance. In any 
case the body responsible for maintenance must ensure that the components for 
maintenance related replacements  are suitable for their appl ications, are used within 
their area of use, and enable interoperabili ty to be achieved within the rail system 
while at the same time meeting the essentia l requirements. Such components must be 
traceable and certified in accordance with any national or intern ational rule, or any 
code of practice widely acknow ledged in the railway domain. 
7. I
MPLEMENTATION  
7.1. General 
This TSI applies to the fixed installations defined in point 2.1 of any line under the 
geographical scope of this TSI which will be put into service after this TSI enters into force. 
7.2. Progressive strategy towards interoperability 
7.2.1.  Introduction 
(1) The strategy described in this TSI applies to new, upgraded and renewed lines. 
(2) For the purpose of this section, a new line means a line that creates a route 
where none currently exists. 
(3) The following situations may be considered as an upgrade or renewal of 
existing lines: 
(a) the realignment of part of an existing route; 
(b) the creation of a bypass; 
(c) the addition of one or more tracks on an existing route, regardless of the 
distance between the original tr acks and the additional tracks. 
(4) In accordance with the conditions laid down in Article 20(1) of Directive 
2008/57/EC, the migration strategy i ndicates the way existing fixed 
installations defined in point2.1 shall be adapted when it is economically 
justified to do so. 
7.2.2.  Migration strategy for voltage and frequency 
(1) The choice of power supply system is a Member State competence. The 
decision should be taken on economic and technical grounds, taking into account at least the following factors:  
EN 33   EN (a) the existing power supply system in that Member State; 
(b) any connection to railway line in ne ighbouring countries with an existing 
electrical power supply; 
(c) power demand. 
(2) New lines with speed greater than 250 [km/h] shall be supplied with one of the 
AC systems as defined in point 4.2.3. 
7.2.3.  Migration strategy for OCL geometry 
7.2.3.1.  General objective and scope of the migration strategy 
The objective of the migration strategy is to create a clear path to extend in the 
following years an electrified network cap able to accommodate both pantographs as 
defined in the LOC&PAS TSI points4.2.8.2.9.2.1 (1600 mm)  and 4.2.8.2.9.2.2 (1950 
mm).  
During this migration period, the strategy of Member State shall be based on a 
feasibility study (including economic a nd technical grounds) taking into account: 
• closing gaps between different OCL geometries;  
• any connection to the existing OCL geometries in neighbouring areas;  
• existing certified ICs OCL.  
7.2.3.2.  Implementation rules of the migration strategy - 1435 mm track gauge system 
The overhead contact line shal l be designed taking into account the following rules: 
(a) New lines with speed equal or greater than 250 [km/h] shall accommodate both 
pantographs as specified in the LOC & PAS TSI points 4.2.8.2.9.2.1 (1600 
mm) and 4.2.8.2.9.2.2 (1950 mm) . 
In case the above mentioned feasibility study does not support the 
accommodation of both pantographs, the overhead contact line shall be designed for use by at least pantograph with  the head geometry specified in the 
LOC&PAS TSI clause 4.2.8.2.9.2.1 (1600 mm)  
(b) Other cases: 
The OCL shall accommodate both pantogra phs as specified in the LOC & PAS 
TSI points 4.2.8.2.9.2.1 (1600 mm)  and 4.2.8.2.9.2.2 (1950 mm) . 
In case the above mentioned feasibility study does not support the 
accommodation of both pantographs, the overhead contact line shall be designed for use by at least one of the pantographs with the head geometry 
specified in the LOC&PAS TSI points 4.2.8.2.9.2.1 (1600 mm)  or 4.2.8.2.9.2.2 
(1950 mm) . 
7.2.3.3.  Track gauge systems different than 1435mm 
The overhead contact line shall be designed fo r use by at least one of the pantographs 
with the head geometry specified  in the LOC&PAS TSI point 4.2.8.2.9.2.  
7.2.4.  Implementation of the on-ground en ergy data collecting system  
Within 2 years after this TSI enters in to force, Member State shall implement 
arrangements to enable on-ground energy data  collecting system to receive CEBD.  
EN 34   EN 7.3. Application of this TSI to existing lines 
7.3.1.  Introduction 
(1) The following principles shall be consid ered in case this TSI is applied to 
existing lines, without prejudice to point 7.4 (specific cases):  
(a) Where Article 20(2) of Directive 20 08/57/EC applies, the Member State 
decides which requirements of the TSI must be applied taking into 
account the migration strategy. 
(b) Where Article 20(2) of Directiv e 2008/57/EC does not apply, the 
conformity with this TSI is recommended. Where it is not possible to achieve conformity, the contracting en tity informs the Member State of 
the reason thereof. 
(c) When the Member State requires a new authorisation for placing into 
service, the Contracting Entity sha ll define the practical measures and 
different phases of the project wh ich are necessary to achieve the 
required levels of performance. These project phases may include transition periods for placing equipment into service with reduced levels of performance. 
(d) An existing subsystem may allow the circulation of TSI-conform 
vehicles whilst meeting the essential requirements of Directive 2008/57/EC. The procedure to be used for the demonstration of the level 
of compliance with the basic parameters of the TSI shall be in accordance with Commission Recommendation 2011/622/EU.  
7.3.2.  Upgrading/renewal of the OCL and/or the power supply 
(1) It is possible to gradually modify all or  part of the overhea d contact line and/or 
the power supply system - element by element – over an extended period of 
time to achieve conformance with this TSI. 
(2) However the conformity of the entire s ubsystem can only be declared when all 
elements have been brought into conf ormity with the TSI over a complete 
section of route. 
(3) The process of upgrading/renewal should ta ke into consideration the need of 
maintaining compatibility with the existing energy subsystem and other 
subsystems. For a project including el ements not being TSI conform, the 
procedures for the assessment of confor mity and EC verification to be applied 
should be agreed with the Member State. 
7.3.3.  Parameters related to maintenance 
While maintaining the energy subsystem, formal verifications and authorisations for 
placing into service are not required. However, maintenance replacements may be 
undertaken, as far as reasonably practicable , in accordance with the requirements of 
this TSI contributing to the development of interoperability. 
7.3.4.  Existing subsystem that are not subj ect to a renewal or upgrading project 
The procedure to be used for the demonstra tion of the level of compliance of existing 
lines with the basic parameters of this TSI shall be in accordance with Commission Recommendation 2011/622/EU.  
EN 35   EN 7.4. Specific cases 
7.4.1.  General  
(1) The specific cases, as listed in point 7.4.2, describe special provisions that are 
needed and authorised on particular  networks of each Member State.  
(2) These specific cases are classified as: 
– “P” cases: “permanent” cases.  
– “T” cases: “temporary” cases, where it is planned that the target system is 
reached in the future. 
7.4.2.  List of specific cases 
7.4.2.1.  Particular features on the Estonian network 
7.4.2.1.1 Voltage and frequency (4.2.3) 
P case 
Maximum allowed voltage of overhead cont act line in Estonia is 4 kV (3 kV 
DC networks). 
7.4.2.2.  Particular features on the French network 
7.4.2.2.1 Voltage and frequency (4.2.3) 
T case 
The values and limits of the voltage a nd frequency at the terminals of the 
substation and at the pantograph of the 1,5 kV DC electrified lines: 
• Nimes to Port Bou, 
• Toulouse to Narbonne, 
may extend the values set out in EN50163:2004, clause 4 (U max2 close to 2000 
V). 
7.4.2.2.2 Phase separation sections – lines with speed v ≥ 250 [km/h] (4.2.15.2) 
P case 
In case of upgrading/renewal of high speed lines LN 1, 2, 3 and 4 special 
design of phase separation sections is permitted. 
7.4.2.3.  Particular features on the German network 
7.4.2.3.1 Migration strategy fo r OCL geometry (7.2.3.2) 
P case 
In case of implementation rules of the migration st rategy (7.2.3.2), for new, 
upgraded or renewed lines up to 230km/h, the feasibility study is not requested. 
7.4.2.4.  Particular features on the Italian network 
7.4.2.4.1 Phase separation sections – lines with speed v ≥ 250 [km/h] (4.2.15.2) 
P case 
In case of upgrading/renewal of high sp eed line Rome - Naples special design 
of phase separation sections is permitted.  
EN 36   EN 7.4.2.5.  Particular features on the Latvian network 
7.4.2.5.1 Voltage and frequency (4.2.3) 
P case 
Maximum allowed voltage of overhead contac t line in Latvia is 4 kV (3 kV DC 
networks). 
7.4.2.6.  Particular features on the Lithuanian network 
7.4.2.6.1 Dynamic behaviour and quality of current collection (4.2.12) 
P case 
For existing overhead contact line desi gns the space for steady arm uplift is 
calculated according to na tional technical rules no tified for this purpose. 
7.4.2.7.  Particular features on the Polish network 
7.4.2.7.1 Electrical protection coor dination arrangements (4.2.7) 
P case 
For Polish DC 3 kV network the note c in the table 7 of the standard EN 
50388: 2012 is replaced by note: The tripping of the circuit breaker should be 
very rapid for high short-circuits current s. As far as possible, the traction unit 
circuit breaker should trip in order to try to avoid the substation circuit breaker tripping. 
7.4.2.8.  Particular features on the Spanish network 
7.4.2.8.1 Contact wire height (4.2.9.1) 
P case 
On some sections of the future lines v ≥ 250 [km/h] the nominal contact height 
is permitted 5,60 m. 
7.4.2.8.2 Phase separation sections – lines with speed v ≥ 250 [km/h] (4.2.15.2) 
P case 
In case of upgrading/renewal of existi ng high speed lines special design of 
phase separation sections shall be kept. 
7.4.2.9.  Particular features on the Swedish network 
7.4.2.9.1 Assessment of mean useful voltage (6.2.4.1) 
P case 
Alternatively to assessment of m ean useful voltage according to EN 
50388:2012, clause 15.4, the power supply performance is also permitted to be assessed by: 
– A comparison with a reference where the power supply solution has been 
used for a similar or more demanding train schedule. The reference shall have a similar or larger: 
• distance to the voltage controll ed bus bar (frequency converter 
station); 
• impedance of the OCL system.  
EN 37   EN – A rough estimation of U mean useful  for simple cases resulting in an 
increased additional capacity for future traffic demands. 
7.4.2.10.  Particular features on the UK network for Great Britain 
7.4.2.10.1 Voltage and frequency (4.2.3) 
P case 
It is permissible to continue to upgr ade, renew and extend networks equipped 
with the electrification system oper ating at 600/750 V DC and utilising 
conductor rails in a three and/or four ra il configuration in accordance with the 
national technical rules no tified for this purpose. 
Specific case for the United Kingdom of  Great Britain and Northern Ireland, 
applying only to the mainlin e network in Great Britain. 
7.4.2.10.2 Contact wire height (4.2.9.1) 
P case 
For new, upgrade or renewal of the en ergy subsystem on existing infrastructure 
it is permitted to design the overhead contact line wire height in accordance with the national technical rules notified for this purpose. 
Specific case for the United Kingdom of  Great Britain and Northern Ireland, 
applying only to the mainlin e network in Great Britain. 
7.4.2.10.3 Maximum lateral deviati on (4.2.9.2) and pantograph gauge (4.2.10) 
P case 
For new, upgrade or renewal of the en ergy subsystem on existing infrastructure 
it is permitted to calculate the adjustment  to the maximum lateral deviation, the 
verification heights, and pantograph gauge in accordance with the national 
technical rules notified for this purpose. 
Specific case for the United Kingdom of  Great Britain and Northern Ireland, 
applying only to the mainlin e network in Great Britain. 
7.4.2.10.4 Protective provisions against electric shock (4.2.18) 
P case  
For upgrade or renewal of the existing en ergy subsystem or the construction of 
new energy subsystems on existing infrastructure, in place of the reference to EN50122-1:2011+A1:2011 clause 5.2.1, it is permitted to design the protective provisions against electric shock in accord ance with the national technical rules 
notified for this purpose. 
Specific case for the United Kingdom of  Great Britain and Northern Ireland, 
applying only to the mainlin e network in Great Britain. 
7.4.2.11.  Particular features on the Eurotunnel network 
7.4.2.11.1 Contact wire height (4.2.9.1) 
P case 
For, upgrade or renewal of the existing energy subsystem it is permitted for the 
overhead contact line wire height to be designed in accordance with the technical rules notified for this purpose.  
EN 38   EN 7.4.2.12.  Particular features on th e Luxembourgish network 
7.4.2.12.1 Voltage and frequency (4.2.3) 
T case  
The values and limits of the voltage a nd frequency at the terminals of the 
substation and at the pantograph of th e following 25 kV AC electrified lines 
between Bettembourg to Rodange (front ier) and the line  section between 
Pétange and Leudelange may exceed the values set out in EN50163:2004, 
clause 4 (U max1 close to 30 kV and U max2 close to 30,5 kV).  
EN 39   EN Appendix A – Conformity assessment of interoperability constituents  
A.1 SCOPE 
This Appendix indicates the conformity assessmen t of interoperability constituent (overhead 
contact line) of the energy subsystem. 
For existing interoperability constituents, the process desc ribed in point 6.1.2. shall be 
followed.  
A.2 CHARACTERISTICS 
The characteristics of th e interoperability constituent to be assessed applying modules CB or 
CH1 are marked by an X in Table A.1. The pr oduction phase shall be assessed within the 
subsystem. 
Table A.1 - Assessment of the interoperabili ty constituent: overhead contact line  
N/A: not applicable 
1) The measurement of the contact force is inte grated with the process of assessment of 
dynamic behaviour and quality  of current collection.  Assessment in the following phase 
 Design and development phase Production phase 
Characteristic – point Design 
review
 Manufacturing 
process reviewTest Product quality 
(series production) 
Geometry of the OCL - 5.2.1.1 X N/A N/A N/A 
Mean contact force - 5.2.1.21)  X N/A N/A N/A 
Dynamic behaviour - 5.2.1.3 X N/A X N/A 
Space for steady arm uplift - 
5.2.1.4 X N/A X N/A 
Pantograph spacing for overhead 
contact line design - 5.2.1.5 X N/A N/A N/A 
Current at standstill - 5.2.1.6 X N/A X N/A 
Contact wire material  - 5.2.1.7 X N/A  N/A N/A  
EN 40   EN Appendix B – EC verification of the energy subsystem  
B.1 Scope 
This Appendix indicates the EC veri fication of the energy subsystem. 
B.2 Characteristics and Modules 
The characteristics of the subsystem to be assessed in the differ ent phases of design, 
installation and ope ration are marked by X in Table B.1. 
Table B.1 - EC verification of the energy subsystem  
Assessment phase 
Design 
develop. phase Production phase 
Basic parameters Design 
review Construction, 
assembly, 
mounting Assembled, 
before 
putting into 
service Validation 
under full 
operating 
conditions 
Voltage and frequenc y - 4.2.3 X N/A N/A N/A 
Parameters relating to supply 
system performance - 4.2.4 X N/A N/A N/A 
Current capacity, DC systems, 
trains at standstill - 4.2.5 X2) N/A N/A N/A 
Regenerative braking - 4.2.6 X N/A N/A N/A 
Electrical protection 
coordination arrangements - 4.2.7 X N/A X N/A 
Harmonics and dynamic 
effects for AC traction power supply systems- 4.2.8 X N/A N/A N/A 
Geometry of the overhead 
contact line - 4.2.9 X2) N/A N/A N/A 
Pantograph gauge - 4.2.10 X N/A N/A N/A 
Mean contact force - 4.2.11 X2) N/A N/A N/A 
Dynamic behaviour and 
quality of current collection - 4.2.12 X
2) N/A X3) 
 N/A3) 
Pantograph spacing for 
overhead contact line design - 
4.2.13 X2) N/A N/A N/A 
Contact wire material - 4.2.14 X2) N/A N/A N/A 
Phase separation sections -
4.2.15 X N/A N/A N/A 
System separation sections -
4.2.16 X N/A N/A N/A  
EN 41   EN Assessment phase 
Design 
develop. phase Production phase 
Basic parameters Design 
review Construction, 
assembly, 
mounting Assembled, 
before 
putting into 
service Validation 
under full 
operating 
conditions 
On-ground energy data 
collecting system - 4.2.17 N/A N/A N/A N/A 
Protective provisions against 
electric shock- 
4.2.18 X N/A N/A N/A 
Maintenance rules - 4.5 N/A N/A X  N/A 
N/A: not applicable 
2) Only to be carried out if the overhead contact  line has not been assesse d as interoperability 
constituent. 
3) Validation under full operating conditions shall only be done when the validation in the 
phase “Assembly before putting into service” is not possible.  
EN 42   EN Appendix C – Mean useful voltage  
C.1 Values for U mean us eful at the pantograph 
The minimum values for mean useful volta ge at the pantograph under normal operating 
conditions shall be as given in Table C.1. 
Table C.1 ⎯ Minimum U mean useful at pantograph  
 V 
Line speed v > 200[km/h]  Line speed v ≤ 200 [km/h]  Power supply system 
Zone and train Zone and train 
AC 25 kV50 Hz 22 500 22 000 
AC 15 kV16,7 Hz 14 200 13 500 
DC 3 kV 2 800 2 700 
DC 1,5 kV 1 300 1 300 
C.2 Simulation rules 
Zone used for simulation to calculate U mean useful   
• Simulations shall be carried out on a zone wh ich represents a significant part of a line 
or a part of the network, such as the relevant feeding section(s) in the network for the object to be designed and assessed.  
Time period used for simulation to calculate U mean useful  
• For simulation of U  mean useful (train) and U  mean useful (zone) only trains that are part of 
the simulation during a relevant time, such  as the time needed  to go through a 
complete feeding section, have to be considered.  
EN 43   EN Appendix D – Determinatio n of the pantograph gauge  
D.1 Determination of the mechanic al kinematic pantograph gauge  
D.1.1 General D.1.1.1 Space to be cleared for electrified lines 
In the case of lines electrified by an overhead contact line, an additional sp ace should be cleared: 
• to accommodate the OCL equipment; 
• to allow the free passage of the pantograph. 
This Appendix deals with the free passage of the pantograph (pantograph gauge). The 
electrical clearance is considered  by the Infrastructure Manager. 
D.1.1.2 Particularities 
The pantograph gauge differs in some  aspects from the obstacle gauge: 
• The pantograph is (partly) live and, for this  reason, an electrical clearance is to be 
complied with, according to the nature of the obstacle (insulated or not); 
• The presence of insulating horns should be taken into account, where necessary. 
Therefore a double reference contour has to  be defined to take account of the 
mechanical and electrical interference simultaneously; 
• In collecting condition, the pantograph is in permanent contact with  the contact wire 
and, for this reason, its height  is variable. So is the he ight of the pantograph gauge. 
D.1.1.3 Symbols and abbreviations 
Symbol Designation Unit 
bw Half-length of the pantograph bow m 
bw,c Half-length of the pantogra ph bow conducting length (with 
insulating horns) or working length (with conducting horns) m 
b’o,mec Width of mechanical kinema tic pantograph gauge at upper 
verification point m 
b’u,mec Width of mechanical kinematic  pantograph gauge at lower 
verification point m 
b’h,mec  Width of mechanical kinematic pa ntograph gauge at intermediate 
height, h m 
dl Lateral deviation of contact wire m 
D’0 Reference cant taken into account by the vehicle for the pantograph 
gauge m 
ep Pantograph sway due to the vehicle characteristics m 
epo Pantograph sway at the upper verification point m 
epu Pantograph sway at the lo wer verification point m 
fs  Margin to take account of the ra ising of the contact wire  m 
fwa  Margin to take account of the wear  of the pantograph contact strip m  
EN 44   EN fws  Margin to take account of the bow  trespassing the contact wire due 
to the pantograph sway m 
h Height in relation to  the running surface m 
h’co Reference roll centre height for the pantograph gauge m 
h’  Reference height in the calcula tion of the pantograph gauge m 
h’o  Maximum verification height of th e pantograph gauge in a collecting 
position m 
h’u Minimum verification height of th e pantograph gauge in a collecting 
position m 
heff Effective height of the raised pantograph m 
hcc Static height of the contact wire  m 
I’0  Reference cant deficiency taken in to account by the vehicle for the 
pantograph gauging m 
L Distance between rail centres of a track m 
l Track gauge, distance between  the rail running edges m 
q Transverse play between axle and bogie frame or, for vehicles not 
fitted with bogies, between axle and vehicle body m 
qs’ Quasi-static movement m 
s’o Flexibility coefficient taken into account by agreement between the 
vehicle and the infrastructu re for the pantograph gauging  
S’i/a Allowed additional overthrow on the inside/outside of the curve for 
pantographs m 
w Transverse play between bogie and body m 
   
   
Σj  Sum of the (horizontal) safety  margins covering some random 
phenomena (j = 1, 2 or 3) for the pantograph gauge  m 
Subscript a: refers to the outside of the curve 
Subscript i: refers to the inside of the curve  
EN 45   EN D.1.1.4 Basic principles 
Caption: 
Y: Centre line of the track 
Y’: Centre line of the pantograph - for deriving the free passage reference profile 
Y’’: Centre line of the pantograph - for deriving the mechanical kinematic 
pantograph gauge 
1: Pantograph profile 2: Free passage reference profile 3: Mechanical kinematic gauge 
 
Figure D.1 — pantograph mechanical gauges 
The pantograph gauge is only met if the mechan ical and electrical gauges are complied with 
simultaneously: 
• The free passage reference profile in cludes the pantograph collector head 
length and the pantograph sway e
p, which applies up to the reference cant or 
cant deficiency;  
• Live and insulated obstacles shall re main outside the mechanical gauge;  
EN 46   EN • Non insulated obstacles (earthed or at a potential different fr om the OCL) shall 
remain outside the mechanical and electrical gauges. 
D.1.2 Determination of the mechanic al kinematic pantograph gauge  
D.1.2.1 Determination of the widt h of the mechanical gauge 
D.1.2.1.1 Scope 
The width of the pantograph gauge is mainly de termined by the length and displacements of 
the pantograph under consideration. Beyond speci fic phenomena, phenomena similar to those 
of the obstacle gauge are found in  the transverse displacements. 
The pantograph gauge shall be cons idered at the following heights: 
• The upper verification height h’o 
• The lower verification height h’u 
Between those two heights, it can be consider ed that gauge width varies in a linear way. 
The various parameters are shown in figure D.2. 
D.1.2.1.2 Calculation methodology 
The pantograph gauge width shall be  determined by the sum of the parameters defined below. In 
the case of a line run by various pantographs , the maximum width s hould be considered. 
For the lower verificat ion point with h = h’u : 
max/ / ),/( ' ' ' ⎟⎠⎞⎜⎝⎛Σ++++=j ai ai pu w mecaiu qs S e b b   
For the upper verificat ion point with h = h’o : 
max/ / ),/( ' ' ' ⎟⎠⎞⎜⎝⎛Σ++++=j ai ai po w mecaio qs S e b b   
NOTE i/a = inside/outside curve. 
For any intermediate height h, width is de termined by means of an interpolation: 
⎟⎠⎞⎜⎝⎛−−−+=mecu meco
u ou
mecu mech b bhhhhb b, , , , ' ' .```' '   
D.1.2.1.3 Half-length bw of the pantograph bow 
The half-length bw of the pantograph bow depends on the type of pantograph used. The 
pantograph profile(s) to be considered are defined in LOC&PAS TSI, point 4.2.8.2.9.2. 
D.1.2.1.4 Pantograph sway ep 
The sway mainly depends on the following phenomena: 
• Play q + w in the axle boxes and between bogie and body. 
• The amount of body inclina tion taken into account by the vehicle (depending on  the 
specific flexibility s0’, the reference cant D’0 and the reference cant deficiency I’0). 
• The mounting tolerance of the pantograph on the roof. 
• The transverse flexibility of the mounting device on the roof. 
• The height under consideration h’.  
EN 47   EN 
 
Caption: 
Y: Centre of the track  1: Free passage reference profile 2: Mechanical kinematic pantograph gauge  
 
Figure D.2 —Determination of the width of  the mechanical kinematic gauge of the 
pantograph at different heights  
EN 48   EN D.1.2.1.6 Additional overthrows 
The pantograph gauge has a specific additional overthrows. In case of standard track gauge 
the following formula applies:  
S’i/a =2435,1 5,2−+λ
R 
For other track gauges the national rules apply.  
D.1.2.1.7 Quasi-static effect 
Since the pantograph is installed on the roof, the quasi-static effect plays an important role in 
the calculation of the pantograph gauge. That eff ect is calculated from the specific flexibility 
s0’, reference cant D’0 and reference cant deficiency I’0: 
)' ( '''0
000
c i hh DDLsqs −⎥⎦⎤
⎢⎣⎡− =
> 
)' ( '''0
000
c a hh IILsqs −⎥⎦⎤
⎢⎣⎡− =
> 
NOTE: Pantographs are normally mounted on th e roof of a power unit, whose reference 
flexibility s 0’ is generally smaller than that of the obstacle gauge s 0. 
D.1.2.1.8 Allowances  
According to gauge definition, the followi ng phenomena should be considered: 
• Loading dissymmetry; 
• The transverse displacement of the track between two successive maintenance 
actions; 
• The cant variation occurring between two successive maintenance actions; 
• Oscillations generated by track unevenness. 
The sum of the abovementione d allowances is covered by Σj. 
D.1.2.2 Determination of the heig ht of the mechanical gauge 
Gauge height shall be determined on the basis of the static height hcc, of the contact wire at 
the local point under consideration. The follo wing parameters should be considered: 
• The raising fs of the contact wire generated by the pantograph contact force. 
The value of fs depends on the OCL type and so shall be determined by the 
Infrastructure Manager in accordance with point 4.2.16. 
• The raising of the pantograph head due to the pantograph head skew generated 
by the staggered contact point and the wear of the collector strip fws + fwa. The 
permissible value of fws is shown in CR LOC&PAS TSI and fwa. depends on 
maintenance requirements. 
The height of the mechanical gauge is given by the following formula: 
wa ws s cc eff f ff h h +++=    
EN 49   EN D.1.3 Reference parameters  
Parameters for the kinematic mechanical pa ntograph gauge and for determination of the 
maximum lateral deviation of the c ontact wire shall be as follows: 
• l - according to track gauge 
• s’o = 0,225 
• h’co = 0,5 m 
• I’ 0 = 0,066 m and D’ 0 = 0,066 m 
• h’o = 6,500 m and h’ u = 5,000 m 
D.1.4 Calculation of maximum late ral deviation of contact wire 
The maximum lateral deviation of the contac t wire shall be calculated by taking into 
consideration the total movement  of the pantograph with respect  to the nominal track position 
and the conducting range (or working length, fo r pantographs without horns made from a 
conducting material) as follows: 
mech w cw l bb bd, , '−+=  
bw,c – defined in points 4.2.8.2.9.1 and 4.2.8.2.9.2 of LOC&PAS TSI 
D.2 Determination of the static pant ograph gauge (track gauge system 1520mm) 
This is applicable for Member States accep ting the pantograph profile in accordance with 
LOC&PAS TSI point 4.2.8.2.9.2.3. 
The pantograph gauge shall conform to Figure D.3. 
Figure D.3 —Static pantograph gauge  for 1520mm track gauge system  
EN 50   EN Table D.1 ⎯ Distances between live parts of OCL and pantograph and earthed parts of 
rolling stock and fixed instalatio ns for 1520mm track gauge system. 
Vertical air clearance 
A1 between the 
rolling stock and 
lowest position of the 
contact wire [mm] Vertical space δ for the live 
parts of the OCL [mm] 
Normal Vertical air 
clearance A 2 
between live 
parts of OCL 
and earthed 
parts [mm] Lateral air 
clearance α 
between live 
parts of the 
pantograph 
and earthed 
parts [mm] Without 
catenary wire With 
catenary wireVoltage of the contact syst em in respect of the ground 
[kV]
Plain and main station 
tracks
Other station tracks 
Minimal allowed for plain and 
main station tracks
Normal 
Minimal allowed 
Normal 
Minimal allowed 
Normal 
Minimal allowed 
Normal 
Minimal allowed 
1 2 3 4 5 6 7 8 9 10 11 12 
1,5 – 4 450 950 250 200 150 200 150 150 100 300 250 
6 – 12 450 950 300 250 200 220 180 150 100 300 250 
25 450 950 375 350 300 250 200 150 100 300 250  
EN 51   EN Appendix E – List of referenced standards  
Table E.1 List of re ferenced standards 
Index 
No. Reference Document name Version BP(s) concerned 
1 EN 50119 Railway applications - Fixed 
installations - Electric traction overhead contact lines 
2009 Current capacity, DC systems, 
trains at standstill (4.2.5), Contact wire height (4.2.9), 
Dynamic behaviour  and quality 
of current collection (4.2.12), Phase separation sections (4.2.15) and System separation sections (4.2.16) 
2 EN 50122-
1:2011+A1:201
1 Railway applications - Fixed 
installations - Electrical safety, 
earthing and the return circuit - 
Part 1: Protective provisions against electric shock 2011 Geometry of the overhead 
contact line (4.2.9) and 
Protective provisions against 
electric shock (4.2.18)  
3 EN 50149 Railway applications - Fixed 
installations - Electric traction - Copper and copper alloy grooved contact wires 2012 Contact wire material (4.2.14) 
4 EN 50163 Railway applications - Supply 
Voltages of Traction Systems 2004 Voltage and frequency (4.2.3)  
 
5 EN 50367  Railway applications - Current 
collection systems - Technical 
criteria for the interaction 
between pantograph and overhead line (to achieve free access) 2012 Current capacity, DC systems, 
trains at standstill (4.2.5), 
Mean contact force (4.2.11), 
Phase separation sections (4.2.15) and System separation sections (4.2.16)  
6 EN 50388 Railway applications - Power 
supply and rolling stock - Technical criteria for the 
coordination between power 
supply (substation) and rolling stock to achieve interoperability 2012 Parameters relating to supply 
system performance (4.2.4), Electrical protection 
coordination arrangements 
(4.2.7), Harmonics and dynamic effects for AC systems (4.2.8)  
 
7 EN 50317 Railway applications — Current 
collection systems — Requirements for and validation 
of measurements of the dynamic 
interaction between pantograph and overhead contact line 2012 Assessment of dynamic behaviour 
and quality of current collection (6.1.4.1 and 6.2.4.5) 
8 EN 50318 Railway applications — Current 
collection systems — Validation of simulation of the dynamic interaction between pantograph and overhead contact line 2002 Assessment of dynamic behaviour 
and quality of current collection (6.1.4.1)  
EN 52   EN Appendix F – Glossary  
Table F.1 Glossary 
Defined term  Abbr. Definition 
AC  Alternative current 
DC  Direct current 
Compiled energy billing 
data CEBD Dataset compiled by the Data Handling System (DHS) 
suitable for energy billing 
Contact line system  System that distri butes the electrical energy to the trains 
running on the route and transmits it to the trains by means of current collectors 
Contact force  Vertical force appl ied by the pantograph to the OCL 
Contact wire uplift  Vertical upward m ovement of the contact wire due to the 
force produced from the pantograph 
Current collector  Equipment fitted to th e vehicle and intended to collect current 
from a contact wire or conductor rail 
Gauge  Set of rules including a refe rence contour and its associated 
calculation rules allowing defini ng the outer dimensions of 
the vehicle and the space to be cleared by the infrastructure.  
NOTE: According to the calcu lation method implemented, 
the gauge will be a static, kinematic or dynamic 
Lateral deviation  Latera l stagger of contact wire  in maximum crosswind. 
Level crossing  An intersection at the same elevation of a road and one or 
more rail tracks  
Line speed  Maximum speed measured in kilometres per hour for which a 
line has been designed 
Maintenance plan  A series of documents setting out the infrastructure 
maintenance procedures adopted by an infrastructure 
manager 
Mean contact force  Statistical mean value of the contact force 
Mean useful voltage train  Voltage identif ying the dimensioning train and enables the 
effect on its performance to be quantified 
Mean useful voltage zone  Voltage giving an indication of the quality of the power 
supply in a geographic zone durin g the peak traffic period in 
the timetable  
EN 53   EN Defined term  Abbr. Definition 
Minimum contact wire 
height  A minimum value of the contact wire height in the span in 
order to avoid the arcing between one or more contact wires and vehicles in all conditions 
Neutral section insulator  An assembly insert ed in a continuous run of contact line for 
isolating two electrical sections from each other that maintains continuous current collection during pantograph passage 
Nominal contact wire height  A nominal value of the contact wire height at a support in the 
normal conditions 
Nominal voltage  Voltage by which an inst allation or part of an installation is 
designated 
Normal service  Planned timetable service 
On-ground energy data collecting system (data collecting service) DCS On-ground service collectin g the CEBD from an Energy 
Measurement System 
Overhead contact line 
 OCL Contact line placed above (or beside) the upper limit of the 
vehicle gauge and supplying vehicles with electric energy through roof-mounted current collection equipment 
Reference contour  A contour, associated to each gauge, showing the shape of a 
cross-section and used as a basis to work out the sizing rules of the infrastructure, on the one hand and of the vehicle, on the other hand 
Return circuit  All conductors which fo rm the intended path for the traction 
return current  
Static contact force  Mean vertical fo rce exerted upwards by the pantograph head 
on the OCL, and caused by the pantograph-raising device, 
whilst the pantograph is raised and the vehicle is standstill