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IEC TS 62271-307 ED1

High-voltage switchgear and controlgear - Part 307: Procedures 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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30.20     Jul 31, 2026

PCC    Oct 23, 2026

IEC

TC 17/SC 17C

Technical Specification

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IEC TS 62271-307 ED1
30.20 CD study/ballot initiated
Jul 31, 2026

National adoptions

nkSRPS IEC TS 62271-307 ED1:2026  
ISS

High-voltage switchgear and controlgear - Part 307: Procedures 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

30.20   CD study/ballot initiated

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