Wednesday 25 November 2020
Tuesday 17 November 2020
Minimum IR values of HT & LT INSTALLATIONS
As per IE Rules-1956
HT INSTALLATIONS
- At a pressure of 1000 V applied between each live conductor and earth for a period of one minute the insulation resistance of HV installations shall be at least 1 Mega ohm or as specified by the Bureau of Indian Standards.
- Medium and Low Voltage Installations- At a pressure of 500 V applied between each live conductor and earth for a period of one minute, the insulation resistance of medium and low voltage installations shall be at least 1 Mega ohm or as specified by the Bureau of Indian Standards] from time to time.
Sunday 1 November 2020
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