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



Reference HD 21.7 S2:1996
Title Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V - Part 7: Single core non-sheathed cables for internal wiring for a conductor temperature of 90° C
Project Number 4876
Abstract/Scope This Part 7 of the HD details the particular requirements for polyvinyl chloride insulated cables of rated voltages Uo/U up to and including 450/750V for internal wiring of electrical apparatus where wiring is operated in a high temperature zone. The high temperature may be caused by high ambient temperature and/or by heat generated by the equipment. Each cable shall comply with the appropriate requirements given in Part 1 and the particular requirements of this part. NOTE: The overall dimensions of the cables of this Part of HD 21 have been calculated in accordance with EN 60719.


Current Stage code 6060
Current Stage code date 1996-01-26
Current Stage code deadline 1996-09-01
Deadline date for vote  


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


IEC Technical Body IEC/TC 20
Reference Document  
ICS 29.060.20 - Cables
Keywords Cable; Polyvinyl chloride insulated cable; Internal wiring (t° = 90°C)
Note Superseded HD S1 and its amendments * Superseded by EN 50525-2-31 (PR=21971)
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 1996-01-26 1996-09-01 export to doc file  EN
6020 1995-12-28 1996-03-28  
5099 1995-11-28 1995-12-28  
5062 1995-10-02 1995-11-28  
5020 1995-05-11 1995-09-01  
4099 1995-03-08 1995-06-08  
4020 1994-03-16 1994-09-30  
3099 1993-10-27 1994-03-27  
3020 1993-03-12 1993-09-12  

Implementation Dates

date of Ratification (DOR) (1) 1995-11-28
date of Availability (DAV) (2) 1996-01-26
date of Announcement (DOA) (3) 1996-03-01
date of Publication (DOP) (4) 1996-09-01
date of Withdrawal (DOW) (5) 1996-09-01


Supersedes HD 21.7 S1:1990
HD 21.7 S1:1990/A1:1992
HD 21.7 S1:1990/A2:1993
Superseded by EN 50525-2-31:2011
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.