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



Reference EN 62271-109:2009/A1:2013
Title High-voltage switchgear and controlgear - Part 109: Alternating-current series capacitor by-pass switches
Project Number 24325
Abstract/Scope IEC 62271-109:2008 is applicable to a.c. series capacitor by-pass switches designed for outdoor installation and for operation at frequencies of 50 Hz and 60 Hz on systems having voltages above 52 kV. It is only applicable to by-pass switches for use in three-phase systems. This standard is also applicable to the operating devices of by-pass switches and to their auxiliary equipment. This second edition cancels and replaces the first edition, published in 2006, and constitutes a technical revision. This standard is to be read in conjunction with IEC 62271-100 and IEC 62271-1 (2007), to which it refers and which is applicable, unless otherwise specified in this standard. The main changes with respect to the previous edition are listed below: - By-passing test duty has been split. - Equivalence regarding applicability of test parameters were reviewed. - Recovery voltage waveshape during insertion test duty has been recalculated and optimized. An explanatory note on the calculation of the recovery voltage is given in Annex F. - Withdrawal of the electrical endurance class BP2. Such devices are now covered in informative Annex E. - Addition of Annex D which gives examples of typical by-pass switch ratings.


Current Stage code 6060
Current Stage code date 2013-08-02
Current Stage code deadline 2014-04-02
Deadline date for vote  


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IEC Technical Body IEC/SC 17A
Reference Document IEC 62271-109:2008/A1:2013 (EQV)
ICS 29.130.10 - High voltage switchgear and controlgear
Keywords High-voltage; Switchgear; Controlgear; Alternating-current; By-pass switch
Note 2013-06-10: Publication allocated to
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2013-08-02 2014-04-02 export to doc file  EN  FR  DE
5099 2013-07-02 2013-07-30  
5060 2013-05-06 2013-05-27 export to doc file  EN
5020 2013-03-01 2013-05-03  
3090 2013-02-26 2013-03-01  
5060 2012-12-10 2012-12-31 export to doc file  EN
5020 2012-07-06 2012-12-07  
1090 2012-07-03 2012-07-06  

Implementation Dates

date of Ratification (DOR) (1) 2013-07-02
date of Availability (DAV) (2) 2013-08-02
date of Announcement (DOA) (3) 2013-10-02
date of Publication (DOP) (4) 2014-04-02
date of Withdrawal (DOW) (5) 2016-07-02


Superseded by  
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.