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hgis electrical switchgear leakage test factorys

Power Frequency Withstand Testing of 38kV Switchgear· PDF file4/17/2017· At the field test level of 60kV, the bushing is drawing approximately 12mA. For 27kV equipment the factory test level is 60kV, so at the field test level of 45kV, each bushing will draw approximately 8mA. A large AC Hipot, typical of those found in switchgear factories and test labs, will be limited to a 100 -

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