Integration in power distribution equipment
7.6 Insulation test of the power distribution equipment
3WA1 air circuit breaker
Equipment Manual, 02/2023, 92310000002-06
539
7.6 Insulation test of the power distribution equipment
Note
An insulation test must be performed according to IEC 60364
-6 / DIN VDE 0100-600
before power distribution equipment is
commissioned.
In the case of circuit breakers with an internal voltage tap, the insulation test requires
that the connections of the voltage tap module (VTM) be isolated before performing the
test. This is achieved by pulling the voltage tap module from the lower part of the
electronic trip unit.
Remove voltage tap module (VTM)
Insert voltage tap module (VTM)
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