ASTM B1008-18,Standard Test Method for Stress-Strain Testing for Overhead Electrical Conductors.ASTM B1008-18 pdf free download.
ASTM B1008-18 covers the measurement of the elastic and short-term creep characteristics of conductors for overhead power lines.
Referenced Documents
IEC 61089:1991 Appendix B, Stress-strain Test Method;
ASTM E4 Practices for Force Verification of Testing Machines;
ASTM E83 Practice for Verification and Classification of Extensometer Systems;
ASTM E220 Test Method for Calibration of Thermocouples By Comparison Techniques;
4. Summary of Test Method
4. 1 Conductor and, if present, the conductor core are sub- jected to a series of loading and unloading at progressively higher stress levels to determine the elastic and short-time creep characteristics of composite and homogeneous conductors.
8.1 Standard industrial safety precautions are appropriate during sample handling and preparation. Coiled samples may whip unexpectedly, and therefore the ends should be restrained Eye protection is recommended during all phases of sample preparation and testing.
8.2 Chemical and respiratory hazards may exist when handling potting compounds for cast resin end fittings.
8.3 Sample rupture is possible during loading tests Therefore, safety cages for the testing machine are recommended.
12. Conditioning
12. I The sample, the gauge rod, and all instruments shall be at thermal equilibrium with a stable lab ambient during all phases of the stress-strain test.