how much insulation resistance 11kv & 33kv under ground
cable between earth to phase & phase to phase.
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Answer Posted / mintu kumar pandit
insulation resistance 11kv to 33kv minimum IR value for new
cable ph to ph & ph to earth 400 megohms for 100 meter 1 minitue
cable after repair the resistance must not be less that
10 megohms ( megger size 1kv )
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