Current stage: 50.00 Effective date: Dec 19, 2025
Next stage: RDTR Next stage date: Feb 6, 2026
Originator: IEC
Owner: TC 91
Type: Technical Report
ICS: 25.040.01 35.240.50
IN_DEVELOPMENT IEC TR 63569-1 ED1 50.00 Final text received or FDIS registered for formal approval Dec 19, 2025