Current stage: 40.99 Effective date: Mar 13, 2026
Next stage: RDTS Next stage date: Dec 31, 2026
Originator: IEC
Owner: TC 23/SC 23H
Type: Technical Specification
ICS: 29.140.01 29.140.99
PROJECT IEC TS 63641 ED1 40.99 Full report circulated: DIS approved for registration as FDIS Mar 13, 2026