220kv XLPE Insulatede Electric Cable

220kv XLPE Insulated Middle-Voltage Power Cable Single Core For Industry

■  Structure diagram of the 110KV~220KV XLPE high-voltage cable product

1. Circular or sliced conductor
2. Conductor screen
3. Insulator
4. Insulated screen
5. Waterproof buffer layer
6. Metal sheath
7. 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

Product Categories : High Voltage Power Cable