special cable

详情

the cross-linkage PE insulated and wrinkled aluminum wrapper waterproof PVC sheathed power cable Type YJLW*2 YJLLW*2 Brief introduction of the **0~**0KV XLPE high-voltage cable products 1. The cross-linkage PE insulated and wrinkled aluminum wrapper waterproof PVC sheathed power cable. Type YJLW*2YJLLW*2 Specification **0mm2~***0mm2 Voltage **0~**0KV 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 YJLW*2YJLLW*2 Specification **0mm2~***0mm2 Voltage **0~**0KV 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 **0KV~**0KV XLPE high-voltage cable 1. . Cables conductor highest working temperature is allowed up to *0, and overload when meet an emergency is **0 , When short circuit (in ≤5 seconds) the highest temperature is **0 2. When installing or laying cable, the ambient temperature should be less than **0, and have to give a preheat to cable. 3. The minimum bending diameter: Cable type Bending diameter Metal sheathed After laying *0D0 During laying *0D0 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≤**0kg/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.