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Conductor Derating Table


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Conductor Derating Table. It includes tables listing current ratings for different cable configurations and conductor sizes under specific ambient temperature, ground temperature, and burial depths. **refer to 240.4(d) for conductor.

Current Rating Table for Class 5 PVC Insulated Wires as per IS 6942010
Current Rating Table for Class 5 PVC Insulated Wires as per IS 6942010 from www.scribd.com

*refer to 310.15(b)(2) for the ampacity correction factors where the ambient temperature is other than 30°c (86°f). This article explains why derating factors are needed, and the main factors affecting cable current ratings, and provides derating factor tables. An engineer gave me this chart for derating and the sizing of conductors feeding equipment in a machine room.

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Current Rating Table for Class 5 PVC Insulated Wires as per IS 6942010

It includes tables listing current ratings for different cable configurations and conductor sizes under specific ambient temperature, ground temperature, and burial depths. *refer to 310.15(b)(2) for the ampacity correction factors where the ambient temperature is other than 30°c (86°f). It includes tables listing current ratings for different cable configurations and conductor sizes under specific ambient temperature, ground temperature, and burial depths. The temperature adders in table 310.15(b)(2)(c) are based on the results of averaging the ambient temperatures.

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