SC 17C

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Detail

Committee
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Current

Status

Frcst Pub

Date

Stability

Date

SC 17CMT 29 Enrique OteguiPPUB2014-042029

History

Stage
Document
Downloads
Decision Date
Target Date
AMW
17C/527/RR PDF file 58 kB
2011-09-08 
1CD
17C/528/CD PDF file 1381 kB
2011-09-092011-09
ACDV
17C/546/CC Word file 837 kB
PDF file 1002 kB
2012-03-022012-02
CCDV
17C/551/CDV PDF file 1213 kB
PDF file 1358 kB
2012-05-112012-05
AFDIS
17C/573/RVC Word file 455 kB
PDF file 578 kB
2012-12-212013-01
DECFDIS
2013-10-102013-05
RFDIS
2013-10-212013-10
CFDIS
17C/595/FDIS

2013-12-112014-01
APUB
17C/598/RVD PDF file 184 kB
2014-02-282014-02
BPUB
2014-03-012014-02
PPUB
2014-03-272014-03
 2019-12

Abstract

IEC 62271-202:2014 specifies the service conditions, rated characteristics, general structural requirements and test methods of high voltage/low voltage or low voltage/high voltage prefabricated substations, which are cable-connected, to be operated from inside (walk-in type) or outside (non-walk-in type) for alternating current of rated voltages above 1 kV and up to and including 52 kV on the high voltage side, and for one or more transformers for service frequencies up to and including 60 Hz for outdoor installation at locations with public accessibility and where protection of personnel is provided. This second edition cancels and replaces the first edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) regarding temperature-rise test an alternative method for liquid filled transformers is (re)introduced and the temperature-rise test method for dry-type transformers is specified more precisely;
b) testing procedure for short time and peak withstand current tests are specified more precisely;
c) assessment of electromagnetic fields is considered including a type test (optional) according IEC/TR 62271-208:2009;
d) influence of the product on the environment is considered (Clause 12);
e) internal arc test requirements have been adapted to IEC 62271-200:2011 and requirements for the assessment of pressure relief volumes below the floor / ground has been assigned;
f) the method for defining the load factor in an enclosure for liquid filled transformers is extended with different temperature rises for the transformer outside the enclosure (Annex DD);
g) for the calculation of the load factor of dry-type transformers in an enclosure the insulation systems according to IEC 60076-1:2011, Tables B.1 and B.2 are worked out in detail.

This publication is to be read in conjunction with IEC 62271-201:2007. The contents of the corrigendum of April 2015 have been included in this copy.

Project

IEC 62271-202:2014 ED2

High-voltage switchgear and controlgear - Part 202: High-voltage/ low-voltage prefabricated substation

 

 

Associated Documents:

17C/736/RR

PDF file 24 kB
17C/585/RM

PDF file 193 kB
17C/536/INF

PDF file 53 kB
17C/526/RQ

PDF file 314 kB
17C/511/Q

Word file 27 kB
PDF file 236 kB