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IEC 61557-8 Ed. 2.0 b CORR1:2007
Corrigendum 1 - Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 8: Insulation monitoring devices for IT systemsCorrigenda by International Electrotechnical Commission, 05/23/2007
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