Use

For fixed installation on AC 50Hz power transmission and distribution lines with a rated voltage of 66kV to 500kV, used for power transmission and distribution

The cable is permitted to be laid indoors, outdoors, in the air, and buried underground, with localized water accumulation allowed

The laying methods can include tunneling, piping, cable trenches, cable trays, and trenching, with direct underground burial permitted

Cables are not allowed to be laid within magnetic metal conduits

The cable laying environment should have good heat dissipation conditions

Cable specifications

Core count: 1

Conductor cross-sectional area: 240~2500mm²

Voltage levels: 50/66kV, 64/110kV, 127/220kV, 290/500kV

Cable Special Performance

Flame retardant/halogen-free low smoke flame retardant

Oil-resistant / UV-resistant / Heat-resistant / Low-temperature-resistant

Termite-proof / Pest-proof / Waterproof

Rated operating temperature of the conductor

The maximum rated operating temperature of the cable conductor is 90°C, and it shall not exceed 250°C during short-circuit (with a maximum duration not exceeding 5s)

Cable allowable bending radius

It shall not be less than 20 times the outer diameter of the cable

cable structure

The main structural components of the cable are: conductor, insulation layer, shielding layer, metal layer, and protective layer

among which

The conductor materials are: copper (CU), aluminum (AL)

The insulating materials are: cross-linked polyethylene (XLPE) and tree-resistant cross-linked polyethylene (TR-XLPE)

The shielding material is: semiconductive polymer

The metal layer material is: aluminum tape (AT)

The sheath materials are: polyvinyl chloride (PVC), polyethylene (PE), and halogen-free low-smoke polyolefin (LSFH)

Typical cable structure:

CU/AL +XLPE/ TR-XLPE +AT +PVC/PE/LSFH/FR