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



Reference EN 60660:1999
Title Insulators - Tests on indoor post insulators of organic material for systems with nominal voltages greater than 1 kV up to but not including 300 kV
Project Number 12103
Abstract/Scope Applicable to post insulators of organic material for indoor service in electrical installations or equipment operating in air at atmospheric pressure on alternating current with a nominal voltage greater than 1 000 V up, but not including, 300 kV, as defined by range I of EN 60071-1, and a frequency not greater than 100 Hz. Composite insulators are not covered by this standard. The object of this standard is - to define the terms used, - define electrical and mechanical characteristics of post insulators of organic material and to prescribe the conditions under which the specified values of these characteristics are verified, - to prescribe methods of testing, - to prescribe acceptance criteria. This standard does not give numerical values for insulator characteristics, nor does it deal with a choice of insulators for specific operating conditions. HD 578 S1 specifies numerical values for electrical and mechanical characteristics and gives the dimensions necessary for interchangeability of post insulators.


Current Stage code 6060
Current Stage code date 1999-12-09
Current Stage code deadline 2000-09-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/SC 36C
Reference Document IEC 60660:1999 (EQV)
ICS 29.080.10 - Insulators
Keywords Insulator; Indoor post insulator; Organic material
Note EN following parallel vote
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 1999-12-09 2000-09-01 export to doc file  EN
5099 1999-12-01 2000-04-01  
5062 1999-10-21 1999-12-01  
5020 1999-07-09 1999-09-30  
4099 1999-07-05 1999-07-09  
4020 1998-04-03 1998-09-15  
3099 1998-03-31 1998-08-31  

Implementation Dates

date of Ratification (DOR) (1) 1999-12-01
date of Availability (DAV) (2) 1999-12-09
date of Announcement (DOA) (3) 2000-03-01
date of Publication (DOP) (4) 2000-09-01
date of Withdrawal (DOW) (5) 2002-12-01


Superseded by  
Normative reference (6) ISO 9000-1:1994
ISO 9002:1994
IEC 60050-471:1984
HD 588.1 S1:1991
EN 60071-1:1995
EN 60270:2001
HD 578 S1:1992
HD 380 S2:1987
EN 60695-11-10:1999
IEC 60932:1988

(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.