Superseded Standard

IEEE 738-1986

IEEE Standard for Calculation of Bare Overhead Conductor Temperature and Ampacity Under Steady-State Conditions

The purpose of this standard is to present a simplified method of calculating the current-temperature relationship of bare over-head lines when given the weather conditions.

Sponsor Committee
PE/T&D - Transmission and Distribution
Learn More
Status
Superseded Standard
Superseded by
738-1993
Board Approval
1984-12-13
History
ANSI Approved:
1992-06-15
Published:
1985-12-31
Reaffirmed:
1991-12-05

Working Group Details

Society
IEEE Power and Energy Society
Learn More
Sponsor Committee
PE/T&D - Transmission and Distribution
Learn More
Working Group
738_WG - Conductor Working Group P738
IEEE Program Manager
Michael Kipness
Contact
Working Group Chair
Cody Davis

P738

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

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.

Learn More

738-2012

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

A 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 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.

Learn More

738-2012/Cor 1-2013

IEEE Approved Draft Standard for Calculating the Current-Temperature Relationship of Bare Overhead Conductors - Corrigendum 1

Technical corrections are addressed in this corrigendum. (NOTE: This corrigendum was not published as an individual standard. It was incorporated into IEEE Std 738-2012 at the time of publication)

Learn More

No Superseded Standards
No Inactive-Withdrawn Standards
No Inactive-Reserved Standards
Newswire

Sign up for our monthly newsletter to learn about new developments, including resources, insights and more.