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



Reference EN 60423:1994
Title Conduits for electrical purposes - Outside diameters of conduits for electrical installations and threads for conduits and fittings
Project Number 3330
Abstract/Scope Specifies outside diameters for conduits used in electrical installations and the dimensional requirements for threads. It also specifies the dimensional requirements for threads used in associated fittings.


Current Stage code 6060
Current Stage code date 1994-11-08
Current Stage code deadline 1995-07-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/SC 23A
Reference Document IEC 60423:1993 (MOD)
ICS 29.120.10 - Conduits for electrical purposes
Keywords Conduit system; Electrical installation; Outside diameter
Note Supersedes HD 393 S1 * Superseded by EN 60423:2007
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 1994-11-08 1995-07-01 export to doc file  EN
5099 1994-10-04 1994-11-04  
5020 1993-11-24 1994-05-31  
5020 1993-03-05 1993-07-15  
3090 1992-05-22 1992-11-22  
3090 1991-11-28 1992-05-28  
3020 1991-02-18 1991-11-01  

Implementation Dates

date of Ratification (DOR) (1) 1994-10-04
date of Availability (DAV) (2) 1994-11-08
date of Announcement (DOA) (3) 1995-01-01
date of Publication (DOP) (4) 1995-07-01
date of Withdrawal (DOW) (5) 1995-07-01


Supersedes HD 393 S1:1979
Superseded by EN 60423:2007
Normative reference (6) IEC 60981:1989

(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Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn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.