Cross-linked polyethylene insulating refractory power cable Description: 1, ... need to wear a plastic tube or iron pipe, plastic is easy to aging brittle, easily corroded ... cables are not required to wear jacket copper pipe, copper sheathing good corrosion resistance. 8, No ... building.Product numberVoltage U/KVProduct SpecificationsNumber of coresConductor cross section area/mmNH-W、NH-W22、NH-W32、 ...