Ревидиран
Applies in particular to direct arc furnaces and submerged arc furnaces (or arc resistance furnaces). Applies to that part of the installation which is situated on the output side of the furnace feeding transformer. This publication has the status of a report.
ПОВУЧЕН
IEC 60519-4:1977 ED1
99.60
Повлачење ступило на снагу
6. 6. 1995.
ПОВУЧЕН
IEC 60519-4:1995 ED2