IEVref:421-09-02ID:
Language:enStatus: Standard
Term: rated insulation level
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Definition: the test voltages, under specified conditions, that the insulation is designed to withstand

NOTE – These test voltages can be for instance:

a) rated lightning impulse and short duration power frequency withstand voltages.
b) rated lightning and switching impulse withstand voltages (phase-to-earth).


Publication date:1990-10
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