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IEC 60255-21 ED1

Measuring relays and protection equipment - Part 21: Vibration, shock, bump and seismic tests requirements

General information

20.99     Nov 21, 2025

CD    Dec 12, 2025

IEC

TC 95

International Standard

Life cycle

PREVIOUSLY

PUBLISHED
IEC 60255-21-1:1988 ED1

PUBLISHED
IEC 60255-21-2:1988 ED1

PUBLISHED
IEC 60255-21-3:1993 ED1

NOW

IN_DEVELOPMENT
IEC 60255-21 ED1
20.99 WD approved for registration as CD
Nov 21, 2025