AA AMSST A Method of Stress-Strain Testing of Aluminum Conductor and ACSR and A Test for Determining the Long Time Tensile Creep of Aluminum Conductors in Overhead Lines
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AA AMSST Document Information:
Title
A Method of Stress-Strain Testing of Aluminum Conductor and ACSR and A Test for Determining the Long Time Tensile Creep of Aluminum Conductors in Overhead Lines
The Aluminum Association Inc.
Publication Date:
Jan 1, 1999
Scope:
Test Method - This method describes the procedure for determining the
room temperature long time
tensile creep for all types of aluminum electrical conductors used in
the construction of overhead
power lines. Also included is the procedure for interpreting and
applying the results of the test.
Purpose of Test - The tensile creep characteristics obtained from this
test are for use in
computing sags and tensions for the design of overhead power lines.
Limitations of Results - It should be recognized by all concerned,
both conductor users and
producers, that conductor creep obtained from the Test Method herein
described is at best an
approximation of the actual creep that may result in the conductor in
service. Due to the many
variations in manufacturing, installation and service conditions, such
as temperature variations,
variations in electrical loading, variations in ice and wind loadings,
variations in pretensioning,
etc., precise values of creep that will occur in service in a
particular conductor are impractical
to predict. Test results obtained by this method will be of sufficient
accuracy for use in
sag-tension calculations for most installations operating at typical
conditions.
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