Title :
Evaluation of Tensile Strength of ACSR Conductors Based on Test Data for Individual Strands
Author :
Farzaneh, Masoud ; Savadjiev, Konstantin
Author_Institution :
Quebec Univ., Chicoutimi, Que.
Abstract :
A probabilistic, numerical method for evaluating tensile properties of aluminum conductors, steel reinforced (ACSR) is developed. Analysis of data from routine-production tests performed on individual aluminum and steel strands enabled establishing the shape of the distribution, degree of truncation, and statistical parameters of the diameter, breaking force, and breaking stress. Modeling the mechanical behavior of individual strands allowed to investigate the tensile properties of completed ACSR: to estimate the parameters of the breaking tensile force and characteristic strength with a given exclusion limit; to study the convergence of the simulated empirical distribution toward the theoretical normal distribution; and to establish a correlation between the breaking tensile stress and the ratio of aluminum-to-steel cross-sectional area. Results from numerical simulations show concordance with the IEC and ASTM standard specifications
Keywords :
aluminium; conductors (electric); normal distribution; numerical analysis; steel; tensile strength; IEC standards; aluminum conductor steel reinforced properties; conductor tensile strength; mechanical behavior modeling; numerical simulations; routine-production tests; truncation degrees; Aluminum; Conductors; Data analysis; IEC standards; Performance analysis; Performance evaluation; Shape; Steel; Tensile stress; Testing; Aluminum round wires; electrical stranded conductors; steel-reinforced aluminum conductors; zinc-coated steel wires;
Journal_Title :
Power Delivery, IEEE Transactions on
DOI :
10.1109/TPWRD.2006.881466
