20.99 20. 2. 2026.
CD 11. 12. 2026.
IEC
TC 73
Tehnička specifikacija
PROJEKAT
IEC TS 63728 ED1
20.99
Prednacrt standarda prihvata se kao nacrt standarda
20. 2. 2026.
Pressure calculation for electrical installations with rated voltages above AC 1 kV and their installation rooms in the event of an arc fault
20.99 Prednacrt standarda prihvata se kao nacrt standarda