220kv XLPE Insulated Middle-Voltage Power Cable Single Core For Industry
■ Structure diagram of the 110KV~220KV XLPE high-voltage cable product
- Circular or sliced conductor
- Conductor screen
- Insulated screen
- Waterproof buffer layer
- Metal sheath
- Outer-sheath & semiconducting layer
■ Specific property for usage of 110KV~220KV XLPE high-voltage cable
1. Cable`s conductor highest working temperature is allowed up to90℃, and overload when meet an emergency is130℃,When short circuit (in ≤5 seconds) the highest temperature is250℃
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:
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 section) 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.
■ The structure parameter and functions table to 110KV, 220KV XLPE high-voltage cable products
1. Rated voltage 64/110KV XLPE copper core and PE insulated wrinkled aluminum wrapper waterproof layer PE(or PVC) sheathed power cable.
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1.High Voltage Power Cable 2.HV XLPE Cable 3.230kv Cable 4.High Quality 3 Core Power Cable 5.Electrical Cable Wires
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Product Categories : High Voltage Power Cable