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IEEE 738-2023

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IEEE Standard for Calculating the Current-Temperature of Bare Overhead Conductors

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Revision Standard - Active. A numerical method by which the core and surface temperatures of a bare overhead conductor are related to the steady or time-varying electrical current and weather conditions is described in this standard. Contents discussed also include how this method may be used to determine the conductor’s current for a corresponding conductor temperature limit. Please note the content in this standard does not recommend suitable weather conditions or conductor parameters for use in line rating calculations.
The standard describes a numerical method by which the core and surface temperatures of a bare overhead conductor are related to the steady or time-varying electrical current and weather conditions. The method may also be used to determine the conductor current which corresponds to conductor temperature limits. The standard does not recommend suitable weather conditions or conductor parameters for use in line rating calculations.
The purpose of this document is to provide a standard method for the calculation of the current-temperature relationship of overhead power line conductors for steady-state and transient cases. This method may be used to develop line ratings including dynamic ratings.

SDO IEEE: Institute of Electrical and Electronics Engineers
Document Number 738
Publication Date Dec. 19, 2023
Language en - English
Page Count 56
Revision Level
Supercedes
Committee Transmission and Distribution
Publish Date Document Id Type View
Dec. 19, 2023 738-2023 Revision
Dec. 23, 2013 738-2012 Revision
Jan. 30, 2007 738-2006 Revision
Dec. 31, 1985 738-1986 Revision