Description
Predicting wire and cable temperature rise above ambient temperature is critical to electrical systems for maximizing the efficiency of power transmission. In order to evaluate current capacities that cause the wire and cable to approach their maximum limit temperature and prevent degradation of insulation materials, the system design engineers need a knowledge of temperature distribution along the length of the wire and cable. Until now most current ratings have been determined empirically, but empirical methods are time consuming and expensive. This paper introduces an analytical method to evaluate temperature rise in wires and cables under different current loads.
