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



Reference EN 50123-5:2003
Title Railway applications - Fixed installations - D.C. switchgear - Part 5: Surge arresters and low-voltage limiters for specific use in d.c. systems
Project Number 14079
Abstract/Scope Applies, in particular, to surge arresters consisting of single or multiple spark gaps in series with one or more non-linear resistors. This consolidated version consists of the third edition (1991) and its amendment 1 (1999). Therefore, no need to order amendment in addition to this publication.


Current Stage code 6060
Current Stage code date 2003-02-28
Current Stage code deadline 2003-09-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 9
Reference Document  
ICS 29.280 - Electric traction equipment
45.020 - Railway engineering in general
Keywords Railway applications; DC; Switchgear; Surge arrester; Limiter
Note Superseded by EN 50526-1:2012
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2003-02-28 2003-09-01 export to doc file  EN  FR  DE
5099 2002-09-01 2003-01-30  
5061 2002-06-24 2002-09-01  
5020 2001-09-21 2002-03-22  
3090 2001-04-23 2001-10-23  
6020 2000-09-14    
3099 2000-09-14 2001-02-14  

Implementation Dates

date of Ratification (DOR) (1) 2002-09-01
date of Availability (DAV) (2) 2003-02-28
date of Announcement (DOA) (3) 2003-03-01
date of Publication (DOP) (4) 2003-09-01
date of Withdrawal (DOW) (5) 2005-09-01


Supersedes EN 50123-5:1997
EN 50123-5:1997/A1:1999
Superseded by EN 50526-1:2012
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Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn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.