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



Reference EN 60446:1999
Title Basic and safety principles for man-machine interface, marking and identification - Identification of conductors by colours or numerals
Project Number 11731
Abstract/Scope 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 may be applied in cables or cores, busbars, electrical equipment and installations. It is based on the principles given in IEC Guide 104 and ISO/IEC Guide 51.


Current Stage code 6060
Current Stage code date 1999-04-01
Current Stage code deadline 2000-01-01
Deadline date for vote  


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


IEC Technical Body IEC/TC 16
Reference Document IEC 60446:1999 (EQV)
ICS 01.070 - Colour coding
29.020 - Electrical engineering in general
Keywords Man-machine interface (MMI); Conductor; Identification; Colour; Numeral
Note EN following parallel vote * Supersedes HD 324 S1 * Superseded by EN 60446:2007
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 1999-04-01 2000-01-01 export to doc file  EN
5099 1999-04-01 1999-05-01  
5062 1999-02-03 1999-04-01  
5020 1998-10-09 1998-12-15  
4099 1998-10-05 1998-10-09  
4020 1997-09-12 1998-02-16  
3099 1997-09-09 1997-09-12  

Implementation Dates

date of Ratification (DOR) (1) 1999-04-01
date of Availability (DAV) (2) 1999-04-01
date of Announcement (DOA) (3) 1999-07-01
date of Publication (DOP) (4) 2000-01-01
date of Withdrawal (DOW) (5) 2002-04-01


Supersedes HD 324 S1:1977
Superseded by EN 60446:2007
Normative reference (6) ISO/IEC Guide 51:1990
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.