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IEC 61557-8:2007. 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 systems
На английском и французском языках. 44 стр. PDF. 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 systems
S?curit? ?lectrique dans les r?seaux de distribution basse tension de 1 000 V c.a. et 1 500 V c.c. – Dispositifs de contr?le, de mesure ou de surveillance de mesures de protection – Partie 8: Contr?leurs d'isolement pour r?seaux IT
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