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. 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 | ---- 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=Kcore 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 P500kg/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.
