Characteristics of Wires of the Long-Operated Aluminum-Steel Cable at Different Places on an Overhead Power Line Span

During operation, cables of overhead power lines (OPLs) are exposed to the impact that differs in separate parts OPL span due different responses near clamps and far from them. This paper presents results a study aluminum steel wires cut such ACSR before after exploitation. Structural, microstructural, elastic–microplastic properties their changes during operation were studied through optical microscopy, energy-dispersive X-ray microanalysis, electron backscattering diffraction, densitometry, acoustic measurements. The characteristics along found change coordinated manner. Numerical estimates influence core on aging cable obtained. Changes wires, as well oxidization corrosion near-surface layers, detail. Quantitative values properties, most distant those observed new revealed for samples at 1/4 clamps. It is assumed these should be crucial durability.