Specifies requirements for insulation monitoring devices which permanently monitor the insulation resistance to earth of unearthed IT a.c. and d.c. systems, and for IT a.c. systems with galvanically connected d.c. circuits.
IEC 61557-8 Ed. 1.0 b:1997
Original price was: $45.00.$22.00Current price is: $22.00.
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 8: Insulation monitoring devices for IT systems
International Electrotechnical Commission , 02/14/1997
Pages: 21
