Current stage: 40.99 Effective date: Jul 3, 2026
Next stage: RDTS Next stage date: Oct 30, 2026
Originator: IEC
Owner: TC 116
Type: Technical Specification
ICS: 25.140.20 25.140.01
PROJECT IEC TS 63749 ED1 40.99 Full report circulated: DIS approved for registration as FDIS Jul 3, 2026