Main characteristics: Extrusion (wrapping) of the insulation layer outside the conductor (such as overhead insulated cables), mainly used in rural areas, suburbs, customer trunks, switch cabinets, etc. Or twisted pair cores (corresponding to the phase, neutral and ground of the power system), such as overhead insulated cables with more than two cores, or other sheaths, such as plastic / rubber sheathed wires and cables.
Processing technology: drawing, twisting, insulation extrusion (wrapping), cable molding, armoring, sheath extrusion, etc. There are some differences in the different process combinations of various products.
Uses: strong electrical energy transmission in power transmission, distribution, transmission, conversion and power lines, with high current (tens of amps to thousands of amps) and high voltage (220V to 500kV and above).