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



Reference EN 62271-204:2011
Title High-voltage switchgear and controlgear - Part 204: Rigid gas-insulated transmission lines for rated voltage above 52 kV
Project Number 22833
Abstract/Scope IEC 62271-204:2011 applies to rigid HV gas insulated transmission lines (GIL) in which the insulation is obtained, at least partly, by a non-corrosive insulating gas, other than air at atmospheric pressure, for alternating current of rated voltages above 52 kV, and for service frequencies up to and including 60 Hz. This standard cancels and replaces IEC/TS 61640:1998. It is a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - update to be in line with IEC 62271-1:2007 and 62271-203 and alignment of the voltage ratings and the test voltages; - addition of new information for gas tightness and corrosion protection. This publication is to be read in conjunction with IEC 62271-1:2007.


Current Stage code 6060
Current Stage code date 2011-09-23
Current Stage code deadline 2012-05-30
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/SC 17C
Reference Document IEC 62271-204:2011 (EQV)
ICS 29.130.10 - High voltage switchgear and controlgear
Keywords High-voltage; Switchgear; Controlgear; Gas-insulated; Rigid
Note To be read in conjunction with EN 62271-1:2008
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2011-09-23 2012-05-30 export to doc file  EN  FR  DE
5099 2011-08-30 2011-09-27  
5060 2011-07-11 2011-08-01 export to doc file  EN
5020 2011-05-06 2011-07-08  
3090 2010-07-16 2010-09-30  
5060 2010-07-05 2010-07-19 export to doc file  EN
5020 2010-01-29 2010-07-02  
1090 2010-01-26 2010-01-29  

Implementation Dates

date of Ratification (DOR) (1) 2011-08-30
date of Availability (DAV) (2) 2011-09-23
date of Announcement (DOA) (3) 2011-11-30
date of Publication (DOP) (4) 2012-05-30
date of Withdrawal (DOW) (5) 2014-08-30


Superseded by  
Normative reference (6) ISO/IEC Guide 51:1999
IEC 60050-151
IEC 60050-441:1984
EN 60060-1
EN 60068-1
EN 60229:2008
EN 60270
IEC 60287-3-1:1995
EN 60376
EN 60480
EN 60529:1991
corr. May 1993
EN 62271-1:2008
EN 62271-203:2012
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.