International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference CLC/TS 50534:2010
Title Railway applications - Generic system architectures for onboard electric auxiliary power systems
Project Number 21419
Abstract/Scope This Technical Specification defines characteristics and interfaces for electric onboard power supply systems. It applies to locomotive hauled passenger trains and electric multiple units with distributed power as well as trains with concentrated power for main-line application. The objective of this Technical Specification is to define target systems, as regards the following interfaces and characteristics in order to enable further standardisation: • interface between traction system and auxiliary power supply system; • train line type: voltage, frequency and number of poles; • interface between auxiliary power supply system and battery system; • interface of the auxiliary power supply system as well as the low voltage grid to a shore supply (stationary workshop supply or external supply); • supply concepts for essential loads e.g. HVAC systems and battery chargers; • redundancy concept within the supply systems; • auxiliary load control and protection strategy at train level. Described system and interface characteristics define the technical basis for dependent European Standards and Technical Specifications. The introduction of this Technical Specification shows this dependency to adjacent documents. Starting from a generic functional description of electric onboard energy supply systems structured in line with EN 15380 4 and a description of the related vehicle concepts, generic system architectures are derived, which are illustrated by examples of consistent sets of system designs showing interfaces and dependencies among concerned subsystems. Relevant train configuration and concerned energy supply subsystems in scope of this Technical Specification are defined in Clause 4.


Current Stage code 6060
Current Stage code date 2010-04-30
Current Stage code deadline  
Deadline date for vote 2009-12-31


Order Voucher  


IEC Technical Body  
Reference Document  
ICS 45.060.01 - Railway rolling stock in general
Keywords Railway;Architecture;Onboard;Supply
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2010-04-30   export to doc file  EN
5099 2010-03-26 2010-07-26  
5060 2010-03-16 2010-03-26 export to doc file  EN
5020 2009-12-11 2010-03-12 export to doc file  EN
3090 2009-03-05 2009-11-28  
3020 2008-11-28 2009-02-13  
3093 2008-06-05 2008-10-31  
3020 2007-10-01 2008-06-30  
2020 2007-09-11 2007-12-31  
1000 2007-06-26 2007-09-12  

Implementation Dates

date of Ratification (DOR) (1) 2010-03-26
date of Availability (DAV) (2) 2010-04-30
date of Announcement (DOA) (3) 2010-09-26
date of Publication (DOP) (4) -
date of Withdrawal (DOW) (5) -


Superseded by  
Normative reference (6)  

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.