IEC 60076-4 ED2

Power transformers - Part 4: Lightning impulse and switching impulse tests of power transformers and reactors

General information

Current stage: 50.20 Effective date: Jan 16, 2026

Next stage: PRVD Next stage date: Feb 27, 2026

Originator: IEC

Owner: TC 14

Type: International Standard

ICS: 29.180

Scope

This part of IEC 60076 applies to lightning and switching impulse tests on power transformers and reactors.

Life cycle

PREVIOUSLY

PUBLISHED
IEC 60076-4:2002 ED1

WITHDRAWN
IEC 60076-4:1976 ED1

NOW

IN_DEVELOPMENT
IEC 60076-4 ED2
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Jan 16, 2026

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