International
Electrotechnical
Commission
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Area
Electrical accessories
/ Insulation coordination for low voltage equipment
IEV ref
442-09-22
en
f
min
frequency at which the maximum reduction of the breakdown voltage of a clearance occurs
[SOURCE: IEC 60664-4:2005, 3.5]
fr
f
min
fréquence à laquelle la réduction maximale de la tension de claquage d’une distance d’isolement apparaît
[SOURCE: IEC 60664-4:2005, 3.5]
de
f
min
ko
f
min
최소 주파수
ja
f
min
pl
f
min
pt
f
min
sr
f
min
zh
f
min
Publication date:
2014-11
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