High-voltage 110~220KV XLPE Cable

Brief introduction of the 110~220KV XLPE high-voltage cable products

1. The cross-linkage PE insulated and wrinkled aluminum wrapper waterproof PVC sheathed power cable.

Type	YJLW02、YJLLW02
Specification	240mm2~3000mm2
Voltage	110~220KV
Usage	Suitable for the places with a higher underground water level and to be used underground, in the tunnels or pipes. Such cables bear a bigger pulling force and pressure.

2.The cross-linkage PE insulated and wrinkled aluminum wrapper waterproof PE sheathed power cable.

Type	YJLW02、YJLLW02
Specification	240mm2~3000mm2
Voltage	110~220KV
Usage	Suitable for the places with a higher underground water level and to be used underground, in the tunnels or pipes. Such cables bear a bigger pulling force and pressure.

1 Specific property for usage of 110KV~220KV XLPE high-voltage cable

1.       Cable’s conductor highest working temperature is allowed up to 90℃, and overload when meet an emergency is 130℃ ,When short circuit (in ≤5 seconds) the highest temperature is 250℃

2.       When installing or laying cable, the ambient temperature should be less than -20℃, and have to give a preheat to cable.

3.       The minimum bending diameter:

Cable type Bending  diameter	Metal sheathed
After laying	30D0
During laying	40D0

Note: In form, D0 is a real test value to cable’s outer diameter.

4.       Allowed biggest axial traction force to outer diameter when laying cable (not consider the radial lateral-pressure at bent set ion) T=K×core NO. ×section (kg), in formula, the coefficient K value should be: the copper core get 7, the aluminum core get 4.

5.       Allowed biggest lateral-press P, when cable is being bent

The single core cable is required P≤500kg/m.

P=T/R (T is indicated axial traction force; R is indicated radius of bent-wheel), Knowing from above formula, as the traction force is made up by length and weight of cable. So it lets P to applying requirement as above. Then the diameter of bent-wheel should be widened.

6.       Cable laying is not being restricted by drop.