20.99 May 8, 2026
CD Jun 1, 2027
IEC
TC 73
Technical Specification
PROJECT
IEC TS 63713-1 ED1
20.99
WD approved for registration as CD
May 8, 2026
Short-circuit current in DC systems – Part 1 Calculation of currents - LVDC
20.99 WD approved for registration as CD