Current stage: 40.99 Effective date: Aug 22, 2025
Next stage: TDTS Next stage date: Jan 30, 2026
Originator: IEC
Owner: TC 65/SC 65E
Type: Technical Specification
ICS: 25.040.40
IN_DEVELOPMENT IEC TS 63680 ED1 40.99 Full report circulated: DIS approved for registration as FDIS Aug 22, 2025