Question: The test voltage and minimum insulation resistance test values for an installation forming part of a 230 V single phase, TN-C-S system are... a) 500

The test voltage and minimum insulation resistance test values for an installation forming part of a 230 V single phase, TN-C-S system are... 


a) 500 V and 0.5 MΩ     b) 250 V and 0.5 MΩ     c) 250 V and 1.0 MΩ     d) 500 V and 1.0 MΩ

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