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This standard specifies the general requirements for a.c. and d.c. power supplies, for measuring relays and protection equipment for power system protection, including the control, monitoring and process interface equipment used with those systems. The responsible Committee is K 434 "Messrelais und Schutzeinrichtungen" ("Measuring relays and protection equipment") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.
This document has been replaced by: DIN EN 60255-26:2014-03; VDE 0435-320:2014-03 .