Current stage: 50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks Jul 31, 2026
Next stage: PRVDTS Next stage date : Sep 25, 2026
Originator: IEC
Owner: TC 82
Type: Technical Specification
ICS: 27.160 Solar energy engineering
IN_DEVELOPMENT IEC TS 63556 ED1 50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks Jul 31, 2026