On the 3+1, 3+2, 4+1 core cables use?

  Information Source:Henan Huadong Cable Co., Ltd , 

   4+1 cable is mainly used for the long-term operation of electrical equipment. 3+2 cable is composed of two sections of the same line (in general than the main core of small section about 1/2) as the zero line and the grounding protection wire.

    4+1 cable is composed of a cross section is smaller than the main core wire (in general than the mainline section is small about 1/2) as the grounding protection wire, and a main core the same section of the line to the zero line (because the loop current short circuit or electric power system is relatively large, so the choice and the main line of the same cross section the other line). The inverter wiring mode, cable structure has three kinds, namely: 3 core, 3+1core, 3+3 core cable.