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IEC 60099-4 ED4

Surge arresters - Part 4: Metal-oxide surge arresters without gaps for a.c. systems

General information

20.99     20 gush 2024

CD    30 sht 2027

IEC

TC 37

International Standard

29.120.50     29.240.10  

Scope

Life cycle

PREVIOUSLY

PUBLISHED
IEC 60099-4:2014 ED3

NOW

IN_DEVELOPMENT
IEC 60099-4 ED4
20.99 WD approved for registration as CD
20 gush 2024