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



Reference EN 60446:2007
Title Basic and safety principles for man-machine interface, marking and identification - Identification of conductors by colours or alphanumerics
Project Number 20590
Abstract/Scope Has the status of a basic safety publication in accordance with the principles given in IEC Guide 104 and ISO/IEC Guide 51. Provides general rules for the use of certain colours or numerals to identify conductors with the aim of avoiding ambiguity and ensuring safe operation. These conductors ma be applied in cables or cores, busbars, electrical equipment and installations. This edition has significant technical changes with respect to the previous edition. This includes addition of subclauses 5.3.4 to 5.3.6 - Use of bi-colour combinations, addition of subclause 6.2 - Identification of certain designated conductors, and addition of a new Annex A (informative) 'Identification of certain designated conductors by means of colour code and alphanumeric'.


Current Stage code 6060
Current Stage code date 2007-07-04
Current Stage code deadline 2008-03-01
Deadline date for vote  


Directive(s) LVD (2006/95/EC)
Order Voucher  


IEC Technical Body IEC/TC 16
Reference Document IEC 60446:2007 (EQV)
ICS 01.070 - Colour coding
29.020 - Electrical engineering in general
Keywords Man-machine interface (MMI); Conductor; Identification; Colour; Alphanumeric
Note Superseded by EN 60445:2010
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2007-07-04 2008-03-01 export to doc file  EN  DE
5099 2007-06-01 2007-08-01  
5060 2007-04-10 2007-04-24 export to doc file  EN
5020 2007-02-02 2007-04-06  
4099 2006-10-13 2006-11-30  
5060 2006-07-24 2006-08-07 export to doc file  EN
5020 2006-02-17 2006-07-21  
1090 2006-02-14 2006-02-17  

Implementation Dates

date of Ratification (DOR) (1) 2007-06-01
date of Availability (DAV) (2) 2007-07-04
date of Announcement (DOA) (3) 2007-09-01
date of Publication (DOP) (4) 2008-03-01
date of Withdrawal (DOW) (5) 2010-06-01


Supersedes EN 60446:1999
Superseded by EN 60445:2010
Normative reference (6) ISO/IEC Guide 51:1999
IEC Guide 104:1997

(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.