NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
Project
IEC 60255-121 Ed.1: Measuring relays and protection equipment - Part 121: Functional requirements for distance protection
Begin
2011-02-25
Planned document number
IEC 95/300/CDV
Responsible national committee
DKE/K 434 - Messrelais und Schutzeinrichtungen