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



Reference EN 50526-2:2014
Title Railway applications - Fixed installations - D.C. surge arresters and voltage limiting devices - Part 2: Voltage limiting devices
Project Number 21094
Abstract/Scope This European Standard applies to Voltage Limiting Devices (VLDs) to be applied in d.c. traction systems in order to comply with protective provisions against electric shock from d.c., and mixed a.c. – d.c. voltages, in accordance with the EN 50122 series, taking into account stray current provisions. VLDs operate in such a way as to connect the track return circuit of d.c. railway systems to the earthing system or to conductive parts within the overhead contact line zone or current collector zone.


Current Stage code 6060
Current Stage code date 2014-02-28
Current Stage code deadline 2014-12-30
Deadline date for vote  


Order Voucher  


IEC Technical Body  
Reference Document  
ICS 29.120.50 - Fuses and other overcurrent protection devices
29.280 - Electric traction equipment
Keywords Railway; Fixed Installations; Surge arrester; Voltage; Limiting device
Note 2013-11-25 - Publication editing allocated to * Renumbered from prEN 50123-8
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2014-02-28 2014-12-30 export to doc file  EN  FR  DE
5099 2013-12-30 2014-01-27  
5060 2013-11-25 2013-12-16 export to doc file  EN
5020 2013-09-20 2013-11-22 export to doc file  EN  FR  DE
4099 2013-07-04    
4060 2012-09-10 2012-10-01 export to doc file  EN
4020 2012-03-16 2012-09-07 export to doc file  EN  FR
3099 2011-12-13 2012-03-16  
2020 2008-04-24 2008-10-21  
1099 2007-04-11 2007-10-11  
1000 2006-11-24 2007-04-12  

Implementation Dates

date of Ratification (DOR) (1) 2013-12-30
date of Availability (DAV) (2) 2014-02-28
date of Announcement (DOA) (3) 2014-06-30
date of Publication (DOP) (4) 2014-12-30
date of Withdrawal (DOW) (5) 2016-12-30


Superseded by  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.