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IEC 61557-6:2019 RLV ed3.0

Действует
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 6: Effectiveness of residual current devices (RCD) in TT, TN and IT systems — 46 стр.
IEC 61557-6:2019 RLV ed3.0
Действует