Full Description

Purpose

The purpose of this standard is to present a method of calculating the current-temperature relationship ofbare overhead conductors.Conductor surface temperatures are a function ofa) Conductor material propertiesb) Conductor diameterc) Conductor surface conditionsd) Ambient weather conditionse) Conductor electrical currentThe first two of these properties are specific chemical and physical properties. The third may vary with time, and that variation is dependent upon ambient atmospheric conditions other than weather. The fourth, weather, varies greatly with the hour and season. The fifth, conductor electrical current, may be constant or may vary with power system loading, generation dispatch, and other factors.

Abstract

Revision Standard - Superseded.A simplified method of calculating the current-temperature relationship of bare overhead lines, given the weather conditions, is presented. Along with a mathematical method, sources of the values to be used in the calculation are indicated. This standard does not undertake to list actual temperature-ampacity relationships for a large number of conductors in a large number of conditions.

Product Details

Published: 11/08/1993 ISBN(s): 9780738103655 Number of Pages: 39 File Size: 5 files , 3.6 MB Product Code(s): STDSU16501