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



Reference EN 62146-1:2014
Title Grading capacitors for high-voltage alternating current circuit-breakers - Part 1: General
Project Number 24017
Abstract/Scope IEC 62146-1:2013 is applicable to grading capacitors used on circuit-breakers. Their function is to control the voltage distribution across the individual interrupter units of a multi-break circuit-breaker. Grading capacitors can also be used in parallel to the interrupter unit on single break circuit-breakers to modify the Transient Recovery Voltage (TRV). The grading capacitor is a sub-component for the circuit-breaker and shall be specified in accordance with the circuit-breaker specifications. This standard applies to grading capacitors falling into one or both of the following categories for: - mounting on air-insulated circuit-breakers; - mounting on enclosed circuit-breakers (for example immersed in SF6, in oil, etc.). The testing for each of the above applications is in some cases different. The object of this standard is: - to define uniform rules regarding performances, testing and rating; - to define specific safety rules; - to provide a guidance for installation and operation. Keywords: grading capacitors, circuit-breakers


Current Stage code 6060
Current Stage code date 2014-03-14
Current Stage code deadline 2014-07-30
Deadline date for vote  


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IEC Technical Body IEC/TC 33
Reference Document IEC 62146-1:2013 (EQV)
ICS 31.060.01 - Capacitors in general
31.060.70 - Power capacitors
Keywords Capacitor; High-voltage; AC; Circuit-breaker; Grading
Note 2013-10-11 - Publication editing allocated to
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2014-03-14 2014-07-30 export to doc file  EN  FR  DE
5099 2013-10-30 2013-11-27  
5060 2013-09-09 2013-09-30 export to doc file  EN
5020 2013-06-28 2013-09-06  
3090 2013-06-25 2013-06-28  
5060 2012-07-09 2012-07-30 export to doc file  EN
5020 2012-02-03 2012-07-06  
1090 2012-01-31 2012-02-03  

Implementation Dates

date of Ratification (DOR) (1) 2013-10-30
date of Availability (DAV) (2) 2014-03-14
date of Announcement (DOA) (3) 2014-06-14
date of Publication (DOP) (4) 2014-09-14
date of Withdrawal (DOW) (5) 2016-10-30


Superseded by  
Normative reference (6) CISPR 18-2:1986
IEC Guide 109:2003
IEC 60050 series
EN 60060-1
EN 60068-2-17:1994
EN 60071-1:2006
EN 60270:2001
EN 60376:2005
EN 60507:1993
EN 60567:2011
EN 60721-1:1995
IEC/TR 60815 series
EN 61462:2007
EN 62155:2003
EN 62271-1:2008
EN 62271-100:2009
EN 62271-203:2004
IEC/TR 62271-300:2006

(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.