10～35kV Overhead Insulated Cable
This product is manufactured according to GB/T14049-2008 "Rated Voltage 10Kv, 35kV Overhead Insulated Cable" and IEC60502 "Rated Voltage 1-30kV Extruded Insulated Power Cable and Accessories" and other standards.
2.1 Rated voltage
2.2 The allowable long-term work of the cable conductor does not exceed the temperature:
HDPE insulated overhead cable: 75℃;
XLPE insulated overhead cable: 90℃;
2.3 In case of short circuit (the longest duration does not exceed 5s), the maximum allowable temperature of the cable conductor shall not exceed:
HDPE insulated overhead cable: 150℃;
XLPE insulated overhead cable: 250℃;
2.4 The ambient temperature should not be lower than -20℃ when the cable is laid.
2.5 Allowable bending radius of cables:
Single-core cable: should not be greater than 20 times the outer diameter of the cable.
Multi-core cable: should not be greater than 15 times the outer diameter of the cable.