Revidiran
Specifies requirements for equipment for measuring the resistance
of earth conductors, protective earth conductors and conductors for
equipotential bonding including their connections and terminals.
POVUČEN
IEC 61557-4:1997 ED1
99.60
Povlačenje stupilo na snagu
29. 1. 2007.
POVUČEN
IEC 61557-4:2007 ED2