YJV22 8.7/15kV 3x120mm²
PE insulated PVC sheathed power cable

Product Features and Applications

• 35kV and below cross-linked polyethylene insulated power cables are suitable for fixed installation on AC 50HZ, rated voltage 35kV and below power transmission and distribution lines for transmitting electrical energy. Compared with polyvinyl chloride power cables, this product not only has excellent electrical performance, mechanical performance, heat aging resistance, environmental stress resistance, and chemical corrosion resistance, but also has the characteristics of simple structure, light weight, not limited by laying drop, and high long-term working temperature (90 degrees).

• Cross linked polyethylene insulated power cables have excellent thermal mechanical properties, outstanding electrical performance, and chemical corrosion resistance, making them a novel cable widely used in urban power grids, mines, and factories. The insulation of cables - cross-linked polyethylene is the use of chemical and physical methods to transform linear molecular structure polyethylene into three-dimensional network structure cross-linked polyethylene, thereby significantly improving the thermal and mechanical properties of polyethylene and maintaining excellent electrical performance.

• Rated voltage meter for cables used in three systems

• The product is manufactured in accordance with GB/T12706.1-2008, 《Power Cables with Extruded Insulation and their Accessories for Rated Voltages from 1 kV (Um=1.2 kV) up to 35 kV (Um=40.5 kV)》.

• The fire resistance performance of fire-resistant cables complies with GB/T19216.21-2003.

• Low-smoke or low-(zero-)halogen flame-retardant cables are produced in accordance with relevant standards. Their flame retardancy is classified into three grades A, B and C as specified in GB/T19666-2005. The low-smoke property shall pass the test specified in GB/T17651-1998, and the pH value and conductivity shall meet the requirements of GB/T17650.2-1998.

• Ambient temperature: 40°C for installation in air; 25°C for direct burial installation.

• Operating temperature of cable conductor: 90°C.

• For buried cables, soil thermal resistivity ρ=1.0 °C·m/W. This does not take into account the increase in soil thermal resistivity caused by moisture migration during long-term cable operation. When the cable is buried, the distance from the cable axis to the ground surface is 1000 mm.

• For flat laying of multiple cables, the axial spacing between cables S=2D.

• The maximum temperature of cable conductor under normal operation is 90°C.

• Under short-circuit conditions (maximum duration not exceeding 5s), the maximum temperature of cable conductor shall not exceed 250°C.

• The ambient temperature shall not be lower than 0°C during cable laying.

• The bending radius during cable laying shall not be less than the following requirements: Single-core cable: 20(D+d) mm; Multi-core cable: 15(D+d) mm (D and d are the outer diameter of cable and nominal diameter of main conductor respectively, unit: mm).