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Use characteristics of PVC insulated PVC sheathed power cable
2013-01-21
1) The maximum rated temperature of the cable conductor is 70 ℃.
2) The maximum temperature of the cable conductor shall not exceed 160 ℃ during short circuit (the longest duration shall not exceed 5S).
3) The ambient temperature during cable laying shall not be lower than 0 ℃, and the minimum bending diameter shall be 2 times of the diameter of the cylinder used for cable bending test.
Note: The laying method and reference parameters for calculating the cable ampacity are:
Laying in air: ambient temperature: 40 ℃;
Laying in soil: the ambient temperature is 25 ℃, the soil thermal resistance coefficient is 1.0k · m/w, and the arrangement of single-core cables is triangular (contact with each other).
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