Cold-resistant cable use characteristics Long-term allowable operating temperature of cable conductors:
PVC or polyethylene insulated cold-resistant cables: The maximum allowable operating temperature for cable conductors is 70 °C. The maximum temperature of the cable conductor does not exceed 160°C in the event of a short circuit (maximum duration not exceeding 5 s).
Cross-linked polyethylene insulated cold-resistant cables: The maximum allowable operating temperature for cable conductors is 90 °C. The maximum temperature of the cable conductor does not exceed 250°C in the event of a short circuit (maximum duration not exceeding 5 s).
The minimum cold-resistant temperature of the cable is -60°C; the temperature of the cable used in the outdoor environment for long-term operation is -60°C to +40°C. Allow the cable to be connected to the electrical equipment and to be removed under the appropriate cold temperature rating. When wiring and disconnecting, slowly bend the cable. The bending radius is 5 times the cable diameter. There should be no impact on the cable during operation.
Cold-resistant cable product advantages and characteristics
The cold-resistant cable has excellent cold resistance and can be installed and used normally in cold winter conditions. In the ultra-low temperature state, even if it is affected by external forces, the outer jacket of the cable still has good physical, mechanical, electrical and anti-aging properties, will not crack, and greatly improve the safety and service life of the cable. The general performance of cables such as electrical and mechanical properties fully comply with the requirements of national standards; their special performance indicators: under the corresponding rated low temperature conditions (-40°C, -45°C, -50°C, -55°C and -60°C), The low temperature winding test does not crack, the elongation at the low temperature tensile test is at least 20%, and the low temperature impact test does not crack.
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