International
Electrotechnical
Commission
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Area
Electrical accessories
/ Insulation coordination for low voltage equipment
IEV ref
442-09-08
Symbol
f
crit
en
critical frequency
frequency at which the reduction of the breakdown voltage of a clearance occurs
[SOURCE: IEC 60664-4:2005, 3.4]
fr
fréquence critique
, f
fréquence à laquelle la réduction de la tension de claquage d’une distance d’isolement apparaît
[SOURCE: IEC 60664-4:2005, 3.4]
de
kritische Frequenz, f
ko
임계 주파수
ja
臨界周波数
pl
częstotliwość krytyczna, f
pt
frequência crítica
sr
критична фреквенција , ж јд
zh
临界频率
Publication date:
2014-11
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