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



Reference EN 62271-203:2012
Title High-voltage switchgear and controlgear - Part 203: Gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
Project Number 22764
Abstract/Scope IEC 62271-203:2011 specifies requirements for gas-insulated metal-enclosed switchgear in which the insulation is obtained, at least partly, by an insulating gas other than air at atmospheric pressure, for alternating current of rated voltages above 52 kV, for indoor and outdoor installation, and for service frequencies up to and including 60 Hz. This second edition of IEC 62271-203 cancels and replaces the first edition of IEC 62271-203, published in 2003, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - adopting the structure and the content to IEC 62271-1, - harmonisation with IEEE C37.122, - addition of the new Annex F and the new Annex G. This publication is to be read in conjunction with IEC 62271-1:2007.


Current Stage code 6060
Current Stage code date 2012-05-11
Current Stage code deadline 2012-07-12
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/SC 17C
Reference Document IEC 62271-203:2011 (EQV) + corrigendum Jul. 2013 (EQV)
ICS 29.130.10 - High voltage switchgear and controlgear
Keywords High-voltage; Switchgear; Controlgear; Gas-insulated; Metal-enclosed
Note 2012-03-13: Publication editing allocated to * Supersedes EN 62271-203:2004 * To be read in conjunction with EN 62271-1:2008
A-Deviation(s) IT
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2012-05-11 2012-07-12 export to doc file  EN  FR  DE
5099 2011-10-12 2011-11-09  
5060 2011-08-08 2011-08-29 export to doc file  EN
5020 2011-06-03 2011-08-05  
3090 2010-07-16 2010-09-30  
5060 2010-05-24 2010-06-07 export to doc file  EN
5020 2009-12-18 2010-05-21  
1090 2009-12-15 2009-12-18  

Implementation Dates

date of Ratification (DOR) (1) 2011-10-12
date of Availability (DAV) (2) 2012-05-11
date of Announcement (DOA) (3) 2012-01-12
date of Publication (DOP) (4) 2012-11-11
date of Withdrawal (DOW) (5) 2014-10-12


Supersedes EN 62271-203:2004
Superseded by  
Normative reference (6) ISO 3231:1993
EN 60044-1:1999
EN 60044-2:1999
EN 60068-2-11
EN 60137:2008
IEC 60141-1
EN 60270
EN 60376
EN 60480
IEC 60840
IEC/TS 61639:1996
IEC 62067
EN 62271-1:2008
EN 62271-100
EN 62271-102:2002
corr. March 2005
corr. July 2008
EN 62271-209:2007
CLC/TR 62271-303

(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.