Answer / k.prakashchandra

Both the answers are correct except for calculation error in
No. 1.You have to consider IR drop also. Upto 25 m length 4
A/ sq mm and upto 100 m 2.5 A/ sq mm may be taken as
carrying capacities.

Answer / shantanu mishra

100 Amps. You can take current density as 4 amps per square
mm for copper. For Aluminium cable it can be taken 2 Amps
per square mm. This also depends upon many other factors
such as whether cable is under ground, or burried or
whether it is overhead. tou shouls also takeinto account
ageing factor also.

Answer / shantanu mishra

I will just make a little correction..." you should also
take into account the derating factor.

Answer / sandip

please refer the manufacturer catlog for
this que. but u have to ask that how to
calculate the current carried out in
25sqmm cable ? actully i also dont know
abt the calculation. if any one have
theformula please send iton my mail add.
sandippatel2310@gmail.com

Answer / satveer sagar

1 sq mm will be taken 3 times current

Answer / sri

10 amps because 1sqmm =2.5a

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