DIN EN 60519-4 VDE 0721-4:2000-09
Safety in electroheat installations
Particular requirements for arc furnace installations
IEC 60519-4 :1995 + A1: 2000); German version EN 60519-4 :1997 + A1: 2000
Class/Status:
Standard,
withdrawn
Released: 2000-09
VDE Art. No.: 0721020