The thermal rating of overhead-line conductors part II. A sensitivity analysis of the parameters in the steady-state thermal model

Abstract

The thermal rating of an overhead-line conductor is the current required to produce a certain maximum permissible temperature under specified atmospheric and other conditions. The thermal rating is found by solving the heat equation, which contains a large number of parameters. The sensitivity of the thermal rating to a variation of each parameter over a practical range is examined, and the relative importance of each parameter is given.