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IEC/TR 62271-307 Ed. 2.0 en:2024

High-voltage switchgear and controlgear - Part 307: Guidance for the extension of validity of type tests of AC metal and solid-insulation enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
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International Electrotechnical Commission Logo

IEC/TR 62271-307 Ed. 2.0 en:2024

High-voltage switchgear and controlgear - Part 307: Guidance for the extension of validity of type tests of AC metal and solid-insulation enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV

IEC/TR 62271-307 Ed. 2.0 en:2024
IEC TR 62271-307:2024 refers to prefabricated metal-enclosed and solid-insulation enclosed (both hereinafter called enclosed) switchgear and controlgear assemblies for alternating current of rated voltages above 1 kV and up to and including 52 kV as specified in IEC 62271 200 and IEC 62271 201, and to other equipment included in the same enclosure with any possible mutual influence. This second edition cancels and replaces the first edition published in 2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Structure of document updated.
b) Updated references to IEC 62271-200:2021 and IEC 62271-1:2017.
c) Addition of criteria for the extension of validity of type tests from functional unit(s) with a different insulating gas to the functional unit to be validated.
d) Figure 5 for the validation of a design modification was added.
e) Clause B.7 for the extension of validity of type test for a GIS with insulation gas A to insulation gas B was added.
SDO IEC: International Electrotechnical Commission
Document Number IEC/TR 62271
Publication Date Not Available
Language en - English
Page Count
Revision Level 2.0
Supercedes
Committee 17C
Publish Date Document Id Type View
Not Available IEC/TR 62271-307 Ed. 2.0 en:2024 Revision
June 5, 2024 Revision
Sept. 1, 2015 IEC/TR 62271-307 Ed. 1.0 b:2015 Revision