what are the values to be accepted on 3 core 185sq mm for
11000volts on insulation resistance between conductors and
between conductors and earthed?
Answers were Sorted based on User's Feedback
Answer / k.prakashchandra
Normally we take 2M ohm /KV as sufficient IR
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Answer / nikhil
1M ohms/kv + 1.
Eg: f0r 11 KV, 11+1= 12M ohms is ok.
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A.C. withstand voltage
Wet(ph/ground)
Time duration
KV
Mins
28 KV
1 Min.
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