Structure
Operational performance
Maximal allowable working temperature of the cable conductor is 90°C
Under short circuit condition with maximal duration not exceeding 5s, the operating temperature of cable conductor shall not exceed 250°C
Installed temperature shall not be lower than 0°C.
Cable shall meet smart gird control, transmit communication signal, and realize safety early waming and temperature measure control.
Factory joint shall have the same electric and mechanical performance of the main body of the cable.
Technical Specification
Conductor
400-1600mm2 annealed stranded wire
Insulation
XLPE
Armour
Galvanized steel wire
Metallic sheath
Lead alloy
Temperature
-30°C~+90°C
Rated voltage
127/220kV
Scope of application
Applies to solidly earthed system with power frequency of 50-60 Hz and rated voltage of 127/220kV(U=245kV). Mainly used for high-power electric power transmission between mainland and island,island and island or mainland and platform; control signal transmission of smart grid and communication signal transmission.
