Detailed Product Description
110 ~ 220KV XLPE Insulated underground High voltage Cable 90℃ 240mm2 ~ 3000mm2
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.
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Type
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YJLW02, YJLLW02
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Specification
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240mm2~3000mm2
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Voltage
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110~220KV
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Usage
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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.
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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.
|
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:
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Cable type Bending diameter
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Metal sheathed
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After laying
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30D0
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During laying
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40D0
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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.
