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



Reference EN 61109:2008
Title Insulators for overhead lines - Composite suspension and tension insulators for a.c. systems with a nominal voltage greater than 1 000 V - Definitions, test methods and acceptance criteria
Project Number 20710
Abstract/Scope IEC 61109:2008 applies to composite suspension/tension insulators consisting of a load-bearing cylindrical insulating solid core consisting of fibres - usually glass - in a resin-based matrix, a housing (outside the insulating core) made of polymeric material and end fittings permanently attached to the insulating core. The main technical changes with respect to the previous edition are - removal of tests procedures now given in IEC 62217; - inclusion of clauses on tolerances, environmental conditions, transport, storage and installation; - general improvement of the description of tests and addition of a new Annex C on non-standard loads.


Current Stage code 6060
Current Stage code date 2008-10-15
Current Stage code deadline 2009-06-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/SC 36B
Reference Document IEC 61109:2008 (EQV)
ICS 29.080.10 - Insulators
Keywords Insulator; Overhead line; Composite suspension; Composite tension; a.c.
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2008-10-15 2009-06-01 export to doc file  EN  FR  DE
5099 2008-09-01 2008-11-01  
5061 2008-06-26 2008-09-01  
5060 2008-05-14 2008-05-28 export to doc file  EN
5020 2008-03-07 2008-05-09  
3090 2008-02-01 2008-02-29  
5060 2006-11-14 2006-11-28 export to doc file  EN
5020 2006-06-09 2006-11-10  
1090 2006-06-06 2006-06-09  

Implementation Dates

date of Ratification (DOR) (1) 2008-09-01
date of Availability (DAV) (2) 2008-10-15
date of Announcement (DOA) (3) 2008-12-01
date of Publication (DOP) (4) 2009-06-01
date of Withdrawal (DOW) (5) 2011-09-01


Superseded by  
Normative reference (6) ISO 3452:1984
EN 60383-1:1996
EN 60383-2:1995
EN 61466-1:1997
EN 62217:2006
corr. December 2006

(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.