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P738-2012 Draft 09  -  IEEE Draft Standard for Calculating the Current-Temperature Relationship of Bare Overhead Conductors

Revision of IEEE Std 738-2006 (Revision of IEEE Std 738-1993)
StatusInactive  -  Draft

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A method of calculating the current-temperature relationship of bare overhead lines, giventhe 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 nor does it recommend appropriately conservative weather conditions for the rating of overhead power lines. It does, however, provide a standard method for doing such calculations for both constant and variable conductor current and weather conditions.