NA 041
DIN Standards Committee Heating and Ventilation Technology and their Safety
Standards
[CURRENT]
EN 60255-121
EN 60255-121
Measuring relays and protection equipment - Part 121: Functional requirements for distance protection (IEC 60255-121:2014)
Title (German)
Messrelais und Schutzeinrichtungen - Teil 121: Funktionsanforderungen für den Distanzschutz (IEC 60255-121:2014)