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



Reference HD 611.1 S1:1992
Title Guide for the determination of thermal endurance properties of electrical insulating materials - Part 1: General guidelines for ageing procedures and evaluation of test results
Project Number 2918
Abstract/Scope Gives principles of test procedures to evaluate the thermal endurance of electrical insulating materials and simple combinations of such materials; describes the conditions to be observed during the various tests and shows the basic analysis methods to derive the temperature index, the relative temperature index and the halving interval from the test results. Attention is given to test data which do not completely satisfy the requirements of linearity and dispersion of the thermal endurance relationship.


Current Stage code 6060
Current Stage code date 1992-07-10
Current Stage code deadline 1993-06-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 15
Reference Document IEC 60216-1:1990 (EQV)
Keywords Electrical insulating materials; Thermal endurance properties
Note Superseded by EN 60216-1:2001
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 1992-07-10 1993-06-01  
5099 1992-06-16 1992-07-16  
5020 1991-12-11 1992-03-15  
1599 1991-06-25 1991-10-25  
1520 1990-11-16 1991-02-28  

Implementation Dates

date of Ratification (DOR) (1) 1992-06-16
date of Availability (DAV) (2) 1992-07-10
date of Announcement (DOA) (3) 1992-12-01
date of Publication (DOP) (4) 1993-06-01
date of Withdrawal (DOW) (5) 1993-06-01


Superseded by EN 60216-1:2001
Normative reference (6) HD 566 S1:1990
HD 437 S1:1984
HD 611.2 S1:1992
IEC 60216-3:1980
EN 60216-3-2:1995
IEC 60216-4:1980
HD 611.5 S1:1992
IEC 60493-1:1974
IEC 60505:1975
IEC 60611:1978

(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.