XLPE power cable specification
Rated voltage: 0.6/1KV 8.7/10KV 8.7/15KV 26/35KV Core number:1/3/3+1/3+2/4/4+1/4+2/5core Conductor cross-sectional area: 25mm²,35mm², 50mm², 70mm², 95mm², 120mm², 150mm², 185mm², 240mm², 300mm², 400mm², 500mm², 630mm², 800mm². Features: Xlpe insulated power cable not only has excellent electrical properties, mechanical properties, heat aging resistance, environmental stress resistance and chemical corrosion resistance, but also has the advantages of simple structure, easy to use, not limited by laying drop, long-term working temperature, large transmission capacity and so on.
1. When the cable is in normal operation, the maximum conductor temperature is 70℃ for PVC insulation and 90℃ for CROSSlinked polyethylene insulation. 2. short circuit (the longest duration is not more than 5 seconds) the highest temperature of conductor: PVC insulation -- conductor section ≤300mm2 for 160℃, conductor section > 300mm2 for 140℃; Crosslinked PVC insulation at 250℃. 3. When laying cables, the ambient temperature should not be less than 0℃, and the minimum allowable bending radius is as follows: Single core cable: unarmored 20D, armored 15D Multi-core cable: 15D for unarmored, 12D for armored D- actual outer diameter of cable. 4. cable breaking force: aluminum cable: 40×S (N) copper cable: 70×S (N) Note: S is the total cross-sectional area of the conductor. The XLPE insulated power cables produced by ZHUFENG Cable Factory also have the following advantages: 1.Heat resistance XLPE with mesh structure has excellent heat resistance. Will not decompose and carbonize below 200℃, long-term working temperature up to 90℃, thermal life up to 40 years.
2. Insulation performance XLPE keeps the original good insulation characteristics of PE, and the insulation resistance is further increased. The tangent of the dielectric loss Angle is very small and is not affected by temperature.
3. Mechanical properties Due to the establishment of new chemical bonds between macromolecules, the hardness, stiffness, wear resistance and impact resistance of XLPE are improved, which makes up for the disadvantage of PE being vulnerable to environmental stress and cracking.
4. Chemical resistance XLPE has strong acid and alkali resistance and oil resistance, and its combustion products are mainly water and carbon dioxide, which do little harm to the environment and meet the requirements of modern fire safety. Using range The product is suitable for fixed granary circuits with rated AC voltage up to and including 35KV, the maximum long-term operating temperature of the conductor is 90 degrees Celsius, and the maximum short-circuit temperature is not more than 250 degrees Celsius (5S). Such as electric power, construction, mining, metallurgy, petroleum, chemical, transportation and other departments.
