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Standards Shop | ICS 17 | ICS 17.200 | ICS 17.200.20
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 Effectiveness of residual current monitors (RCM) in TT, TN and IT systems
BS EN IEC 61557-11:2022
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