the cross-linkage PE insulated and wrinkled aluminum wrapper waterproof PVC sheathed power cable
Type YJLW02 YJLLW02
the cross-linkage PE insulated 220kV XLPE cable
the cross-linkage PE insulated and wrinkled aluminum wrapper waterproof PVC sheathed power cable
Type YJLW02 YJLLW02
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 | YJLW02YJLLW02 |
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 | YJLW02YJLLW02 |
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. .
Cables 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 |
D0.
Note: In form, D0 is a real test value to cables 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.