overview

Because of electromagnetic induction, the long line of high voltage single core power cable metal shielding layer (or metal sheath) induced voltage, resulting in insulation aging, while reducing the insulation level, resulting in reduced cable life, once the induction voltage exceeds the sheath breakdown voltage value, the sheath is broken through the formation of a single core cable multiple grounding fault. So the standard DL/T401 "electric power industry selection of high voltage power cable guide" provisions: must use the cable sheath protector to limit power cable, metal shielding layer (or metal sheath) induction voltage and the overvoltage fault.

The product model description