XLPE cable is a kind of cross-linked polyethylene cable, which occupies an extremely important position in the power supply grid. XLPE cable is a kind of cable suitable for power distribution network and other fields, and has the advantages that PVC insulated cables can't compare. It has simple structure, light weight, good heat resistance, strong load capacity, non-melting, chemical corrosion resistance, and high mechanical strength.
Enough attention should be paid to the safety and reliability of XLPE power cable line operation. Necessary and appropriate measures must be taken to prevent accidents and monitor the operating conditions of power cable lines. The test plan of XLPE cable mainly includes withstand voltage test, routine state assessment and partial discharge test. The main part that can be used for cable testing in field operation is partial discharge testing.