The choice of power cable shall comply with the following principles:
(1) the rated voltage of the cable shall be greater than or equal to the rated voltage of the power supply system of the installation point;
(2) cable continuous permissible current should be equal to or greater than the maximum continuous current load;
(3) core cross section to meet the stability requirements of the short circuit power supply system;
(4) according to the length of the cable check whether it meets the requirements of voltage drop;
(5) the minimum short-circuit current at the end of the line should be able to make reliable protection device action
。
