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



Reference prEN 50526-3:2014
Title Railway applications - Fixed installations - D.C. surge arresters and voltage limiting devices - Part 3 Application guide
Project Number 23348
Abstract/Scope This Application Guide supports the European Standards EN 50526 1 and EN 50526 2. Guidance is offered on the following subjects. – The selection and installation of surge arresters – The selection and installation of voltage limiting devices as VLD-O and VLD-F. – The arrangement of the surge arresters and VLDs Because of differences in the established, proven methods, electric traction systems of nominal voltage 600 V – 750 V are treated separately from the systems at higher nominal voltages. This application guide does not treat systems different from the d.c. electrified traction systems
Enquiry stage


Current Stage code 4020
Current Stage code date 2014-03-21
Current Stage code deadline 2014-08-22
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 installation; D.C.; Surge arrester; Voltage limiting
Note 2013-12-11 - Enquiry editing allocated to * D138/C124: NWI approved * D144/C085: Exceptional second extension of the target date for enquiry approved to read 2014-03-05 (waiting for handling of comments on Part 2 (PR=21094)
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
4020 2014-03-21 2014-08-22 export to doc file  EN  FR
3099 2013-12-11    
1099 2011-04-01    
1000 2010-11-26 2011-03-31  

Implementation Dates

date of Ratification (DOR) (1)  
date of Availability (DAV) (2)  
date of Announcement (DOA) (3) -
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Superseded by  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.