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



Reference CLC/TR 50488:2006
Title Railway applications - Safety measures for the personnel working on or near overhead contact lines
Project Number 16588
Abstract/Scope This Technical Report (TR) is applicable to all work activity on or near the overhead contact line [IEC 60050 811, definition 811-33-02] of railway installations with supply voltage values as described in Table 1, derived from EN 50163. This Technical Report applies to requirements for safe working and maintenance procedures. It applies to all electrical work activities as well as non-electrical work activities. This Technical Report deals with the electrical hazard only. Risks coming from train traffic are not covered in this document. This Technical Report does not apply to: - guided mass transport systems such as tramways, elevated and underground metro railways, mountain railways, trolley bus and other conductor rail systems; - mine or other internal industrial material transportation railways; - railway installations with supply voltage values below 1 500 V; - experimental electrical research work.


Current Stage code 6060
Current Stage code date 2006-12-22
Current Stage code deadline  
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 9
Reference Document  
ICS 13.260 - Protection against electric shock
45.020 - Railway engineering in general
Keywords Railway; Safety; Overhead; Contact line; Personnel
Note 2007-05 decision: TR confirmed for 2 more years (no EN for the time being)
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2006-12-22   export to doc file  EN
5099 2006-11-24 2007-01-29  
5060 2006-06-20 2006-11-30 export to doc file  EN
5020 2006-03-17 2006-06-16 export to doc file  EN
1090 2005-11-04 2006-05-05  
2020 2004-11-01 2005-05-01  

Implementation Dates

date of Ratification (DOR) (1) 2006-11-24
date of Availability (DAV) (2) 2006-12-22
date of Announcement (DOA) (3) -
date of Publication (DOP) (4) -
date of Withdrawal (DOW) (5) -


Superseded by  
Normative reference (6) EN 50110-1:2004
EN 50122-1:1997
EN 50163:2004
IEC 60050-811:1991

(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.