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Help CenterMetal Sheathed 110 - 220KV XLPE Insulated Underground High Voltage Power Cables YJLW02
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Metal Sheathed 110 - 220KV XLPE Insulated Underground High Voltage Power Cables YJLW02
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. |
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.
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