How to choose cable section?

Primary value for the choice of section of the wire is definition of characteristics of electric equipment which will consume afterwards the electric power and to be in network. If at this network there are more than one consumers of electricity, then for this site of their power is summed up.

Further it is necessary to make calculation of the allowable current capacity and to determine its duration. It is worth to remember also about operating conditions of the power supply network and the way of its laying (opened or closed). Mounting of cables and wires is carried out at the certain ambient temperature. 

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