Question: A three-phase, three-cm outer diameter cable in air has a resistance of 2 m/phase per meter and carries 100-A/phase load. Determine its outside surface temperature

A three-phase, three-cm outer diameter cable in air has a resistance of 2 mΩ/phase per meter and carries 100-A/phase load. Determine its outside surface temperature (rise + ambient) if the ambient air is 40ºC.

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