Abstract

The heating of conductors of overhead lines is examined for the determination of conductor temperatures depending on current value and weather conditions. Joints are shown to be heated to a much smaller degree than conductors, the thermal endurance of conductors being very high. A statistical analysis has shown that for large areas the set of weather conditions, determining the heating of conductors during ~he period of maximum loads, results in a narrow range of permissible currents. The clearance reduction has been shown to limit maximum currents on line sections whose routes coincide with the wind direction.

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