127/220kV 1*1000mm2 HV XLPE Power Cable

Rated Voltage of XLPE Cable:64/110kV~127/220KV
 
Construction of XLPE Cable:Conductor:Copper
Insulation:XLPE
Inner sheath:PVC or PE
Armoured:Galvanized steel tape,Galvanized steel wire
Outer Sheath:PVC or PE
NO. of cable cross: 1 core(Single core)
 
Description:
a. The long-term permissible operating temperature of the cable conductor shall not be higher than 90°C
b. The max temperature of the conductor of power cable should less then 250°C when short circuit. (less then 5 second)
c. The pvc insulated power cable is not limited by drop in level when being laid, and the environment temperature shall not be lower than -20°C
d. Perfect chemical stability, resistant against acids, alkalis, grease and organic solvents, and flame retardance
e. Light weight, perfect bending properties, installed and maintained easily and conveniently

HV XLPE Power Cable Types and Application:
Type Description Application
Cu core Al core
YJSAV-Z YJLSAV-Z XLPE insulated copper wire screen Al-plastic laminated tape longitudinal water-proof PVC outer sheathed power cable For laying in tunnel or duct, able to bear pulling force or pressure
YJSAY-Z YJLSAY-Z XLPE insulated copper wire screen Al-plastic laminated tape longitudinal water-proof PE outer sheathed power cable Cable can be equipped in the air, the dry soil, water drainage pipe tunnel or better
YJLW02-Z YJLLW02-Z XLPE insulated wrinkled Al sheathed longitudinal water-proof PVC outer sheathed power cable laying in tunnel or duct, used in damp environment or the place where water level is comparatively high, and able to bear moderate pressure
YJLW03-Z YJLLW03-Z XLPE insulted wrinkled Al sheathed longitudinal water-proof PE outer sheathed power cable Ditto,and has a better property of damp proof.
YJQ02-Z YJLQ02-Z XLPE insulated alloy lead sheathed longitudinal water-proof PVC outer sheathed power cable For laying in tunnel or duct, used in damp environment or the place where water level is comparatively high, anti-vibration and bear moderate pressure.
YJQ03-Z YJLQ03-Z XLPE insulated alloy lead sheathed longitudinal water-proof PE outer sheathed power cable Ditto, and has a better property of damp proof.

Tests and technical performance
1. DC resistance of conductor
Correspond to the requirements of GB/T3956-2008 <Conductor of Cable>。 
2. Partial discharge test
The sensitivity of partial discharge testing system shall not be more than 5pC.there should have no partial discharge according to the standard in the case of 1.75U0.
3. AC. Voltage-withstand test
For Voltage-withstand test done in drums of cable 2.5U0 A.C. Voltage shall be applied between the conductor and the metal screen, lasting 30minutes, or 3.5U0 A.C. Voltage applied, lasting 5 minutes, insulation without break down. 
4. Measurement of tgδ
Heat the conductor of the sample to the temperature in scope of 5℃ to 10℃above permissible operating temperature, Under the voltage of U0, the tgδ value shall not be more than 10x10-4.
5. Electric capacity test
Measuring the electric capacity between conductor and metal screen, the difference between the actual value and the design value shall not be more than 8%.
Standard:

According to GB12706( Equal to IEC60502)Also can do by standard of ASTM,BS,DIN and AS/NZS or other standards as request.
Rated Voltage(U0/U) 220KV
Construction Single core Extrusion screen construction
Conductor TR Copper Segmental 500mm2-1000mm2
Insulation XLPE 16.0mm Average thickness
Screen 2.1mm thickness of conductor and 1.3mm thickness of insulation screen,unstrippable
Buffer layer Semi-Conducting elastic water impermeable swell tape
Welded corrugated metallic sheath 2.4mm Average thickness ;
5.8mm depth of corrugation ;
29.2mm width of corrugation;
Oversheath PE 8.1mm Average thickness;
114.4mm Diameter
Capaitance 251PF/M of complete cable
Outer Diameter 1000mm

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