SC 17C

Assemblies

 

Detail

Committee
Working Groups
Project Leader

Current

Status

Frcst Pub

Date

Stability

Date

SC 17CMT 19Mr Thierry CormenierPPUB2019-042023

History

Stage
Document
Downloads
Decision Date
Target Date
AMW
17C/647/RR PDF file 98 kB
2016-07-14 
1CD
17C/648/CD PDF file 262 kB
2016-07-152016-07
CDM
17C/655/CC Word file 505 kB
PDF file 432 kB
2016-11-182016-11
CDM
17C/655A/CC PDF file 941 kB
Word file 771 kB
2016-11-182016-11
ACD
2017-07-312017-07
2CD
17C/668/CD
PDF file 724 kB
2017-08-042017-08
PCC
2017-10-272017-10
ADTS
17C/672/CC PDF file 164 kB
Word file 70 kB
2017-12-082017-12
TDTS
2018-02-212017-12
CDTS
17C/679/DTS

2018-04-132018-04
PRVDTS
2018-07-062018-07
APUB
17C/691/RVDTS PDF file 116 kB
Word file 64 kB
2018-07-202018-11
TPUB
2018-12-142018-11
DECPUB
2019-01-282019-02
RPUB
2019-02-182019-02
BPUB
2019-03-112019-05
PPUB
2019-03-212019-04
  

Abstract

IEC TS 62271-304:2019 applies to indoor enclosed switchgear and controlgear complying with IEC 62271-200 and IEC 62271-201, intended to be used in special service conditions with respect to condensation and pollution deviating from the normal service conditions specified in IEC 62271-1.


The test detailed in this document has been designed primarily to classify the electrical insulation performance of equipment having high-voltage electrical insulation exposed to indoor service conditions, mainly in presence of condensation. The assessment of mechanical components, such as mechanisms, interlocks and enclosure is also considered.
This second edition cancels and replaces the first edition published in 2008. This edition constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous edition:

a) the description of the several service conditions under condensation and pollution;

b) the classification of enclosed switchgear and controlgear, according to the testing procedure does not cover polluted service conditions PL and PH;

c) a wider description in Annex B of typical indoor environments based on ISO/IEC standards;

d) a new Annex C giving guidance on precautions to improve indoor operating conditions;

e) a new Annex D dedicated to the optional items such as records of mechanical characteristics;

f) a new Annex E, giving additional combinations of environments with condensation and pollution, as well as a proposal of testing procedure of ageing test, is provided to create experience on correlation between ageing effects in laboratory and ageing effects at site conditions.

Project

IEC TS 62271-304:2019 ED2

High-voltage switchgear and controlgear - Part 304: Classification of indoor enclosed switchgear and controlgear for rated voltages above 1 kV up to and including 52 kV related to the use in special service conditions with respect to condensation and pollution