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



Reference EN 50122-1:2011/A1:2011
Title Railway applications - Fixed installations - Electrical safety, earthing and the return circuit - Part 1: Protective provisions against electric shock
Project Number 23053
Abstract/Scope This European Standard specifies requirements for the protective provisions relating to electrical safety in fixed installations associated with a.c. and/or d.c. traction systems and to any installations that can be endangered by the traction power supply system. It also applies to all aspects of fixed installations that are necessary to ensure electrical safety during maintenance work within electric traction systems. This European Standard applies to all new lines and to all major revisions to existing lines for the following electric traction systems: a) railways; b) guided mass transport systems such as 1) tramways, 2) elevated and underground railways, 3) mountain railways, 4) trolleybus systems, and 5) magnetically levitated systems, which use a contact line system, c) material transportation systems. This European Standard does not apply to: d) mine traction systems in underground mines; e) cranes, transportable platforms and similar transportation equipment on rails, temporary structures (e.g. exhibition structures) in so far as these are not supplied directly or via transformers from the contact line system and are not endangered by the traction power supply system; f) suspended cable cars; g) funicular railways. This European Standard does not specify working rules for maintenance.


Current Stage code 6060
Current Stage code date 2011-06-10
Current Stage code deadline 2012-04-25
Deadline date for vote 2012-06-30


Order Voucher  


IEC Technical Body  
Reference Document  
ICS 29.280 - Electric traction equipment
Keywords Railway applications; Fixed installation; Earthing; Bonding; Protective provision
Note 2011-03-21 - Publication editing allocated to
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2011-06-10 2012-04-25 export to doc file  EN  FR  DE
5099 2011-04-25 2011-05-23  
5060 2011-03-21 2011-04-11 export to doc file  EN
5020 2010-10-15 2011-03-18 export to doc file  EN  FR
3090 2010-10-01 2010-10-31  
1099 2010-10-01    
1000 2010-05-19 2010-09-30  

Implementation Dates

date of Ratification (DOR) (1) 2011-04-25
date of Availability (DAV) (2) 2011-06-10
date of Announcement (DOA) (3) 2011-10-25
date of Publication (DOP) (4) 2012-04-25
date of Withdrawal (DOW) (5) 2014-04-25


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.