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



Reference EN 60505:2004
Title Evaluation and qualification of electrical insulation systems
Project Number 15705
Abstract/Scope Establishes the basis for estimating the ageing of electrical insulation systems (EIS) under conditions of either electrical, thermal, mechanical, environmental stresses or combinations of these (multifactor stresses). It specifies the principles and procedures that should be followed, during the development of EIS functional test and evaluation procedures, to establish the estimated service life for a specific EIS. The main changes with respect to the previous edition concern the amalgamation of the following standards, which, with the exception of EN 60727-1, will be withdrawn when this third edition is published: EN 60791:1984, Performance evaluation of insulation systems based on experience and functional tests EN 60792-1:1985, The multi-factor functional testing of electrical insulation systems - Part 1: Test procedures EN 60941:1988, Mechanical endurance functional tests for electrical insulation systems EN 61356:1995, Functional evaluation of electrical systems - Principles for test procedures when comparative testing is not feasible EN 61359:1995, Evaluation and identification of electric insulation systems - Environment evaluation EN 60727-1: 1982, Evaluation of electrical endurance of electrical insulation systems - Part 1: General considerations and evaluation procedures based on normal distributions Elements of EN 60727-1 that are not amalgamated will be considered in the next edition of that standard.


Current Stage code 6060
Current Stage code date 2004-12-09
Current Stage code deadline 2005-08-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 112
Reference Document IEC 60505:2004 (EQV)
ICS 29.080.30 - Insulation systems
Keywords Insulation system; Evaluation; Qualification
Note Superseded by EN 60505:2011
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2004-12-09 2005-08-01 export to doc file  EN
5099 2004-10-01 2005-02-01  
5020 2004-06-25 2004-09-03  
4099 2003-11-07 2003-12-26  
4091 2003-09-26 2003-10-15  
4020 2003-03-14 2003-08-15  
3099 2003-03-11 2003-03-14  

Implementation Dates

date of Ratification (DOR) (1) 2004-10-01
date of Availability (DAV) (2) 2004-12-09
date of Announcement (DOA) (3) 2005-02-01
date of Publication (DOP) (4) 2005-08-01
date of Withdrawal (DOW) (5) 2007-10-01


Supersedes EN 60505:2000
Superseded by EN 60505:2011
Normative reference (6) EN 60068-2-1:1993
EN 60068-2-2:1993
EN 60068-2-14:1999
EN 60068-2-27:1993
EN 60216-3:2002
EN 60216-5:2003
IEC 60493-1:1974
EN 60544-1:1994
EN 60664-1:2003
IEC 60727-1:1982

(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.