Current stage: 50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks Nov 13, 2026
Next stage: PRVDTS Next stage date : Jan 8, 2027
Originator: IEC
Owner: TC 115
Type: Technical Specification
ICS: 29.240.10 Substations. Surge arresters | 29.240.99 Other equipment related to power transmission and distribution networks
PUBLISHED IEC TS 61973:2012 ED1
PUBLISHED IEC TS 61973:2012/AMD1:2019 ED1
IN_DEVELOPMENT IEC TS 61973 ED2 50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks Nov 13, 2026