

專家解讀視頻
Defines the requirements for measuring equipment applied to the testing of the effectiveness of protective measures by regular disconnections of residual current protective devices (RCD) in TT, TN and IT systems.
SN EN 61557-6:1998 - Identical
BS EN 61557-6:2007 - Identical
DIN EN 61557-6 (1999-05) - Identical
NF EN 61557-6:1998 - Identical
I.S. EN 61557-6:1999 - Identical
SS EN 61557-6 Ed. 1 (1998) - Identical
UNE EN 61557-6:1999 - Identical