The insulation of wire and cable of power cable products. 明显地, insulation cable refers to a cable wrapped with a non-conductive material on the outside of the conductor. And most of these materials are resins, 塑料. And silicone rubbers, synthetic compounds, ETC. 顺便一提, Insulation can prevent safe accidents. Such as leakage and short circuit caused by contact between the conductor and the outside world.