Measuring relays and protection equipment - Part 149: Functional requirements for thermal protection; (IEC 95/281/CD:2011)
Project begin
2011-04-28
Planned document number
DIN EN 60255-149; VDE 0435-3149
Abstract
The object of this Standard is to specify minimum requirements for dependent time relays which protect equipment from thermal damage by measuring current flowing through the equipment. This Standard also includes relays which use temperature along with current as an input. This Standard covers protection relays based on a thermal model with memory function.
Responsible Committee
DKE/K 434 Messrelais und Schutzeinrichtungen
Draft standard
Search in NA 022
Contact
Dipl.-Ing.
Rainer Difflipp
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