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IEC 61557-2:1997 ed1.0

Заменен
Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 2: Insulation resistance — 13 стр.
IEC 61557-2:1997 ed1.0
Заменен
IEC 61557-2:2007 ed2.0
Заменен
IEC 61557-2:2019 ed3.0
Действует