Answer / cnu

Please be specific in asking your question.

max load in the sense, the max load is defined to a
particular cable that is operating at a particular voltage.

and max voltage from earth to phase means...... how can you
decide that.

a 3-ph 415V supply has a earth to phase volate of 230V,
which is the one we have in our house.

Same way a 11KV line has an earth to phase violtage of
6.3kV. and so on we go upto 800KV.

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