期刊
IEEE TRANSACTIONS ON POWER DELIVERY
卷 37, 期 2, 页码 972-979出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPWRD.2021.3074946
关键词
Aging; Surface treatment; Surface emitting lasers; Laser ablation; Conductors; Temperature measurement; Substrates; Coatings; corona; high voltage; laser ablation; micropatterning; overhead line; power networks; superhydrophobicity; thermal ageing; thermal cycling
This research aims to improve the surface performance of overhead electric supply lines by laser treatment. Through a series of tests, it is found that the treated surface shows high resilience and durability. The feasibility of applying this method to large-scale production and optimizing test methods are also discussed.
Overhead electric supply lines are subject to water and ice accumulation, causing noise and weight increase, and leading to faults or failures. In this research, micro-textures were laser-ablated on aluminium substrates representative of overhead line conductors to achieve superhydrophobic properties. Samples were then subjected to a range of tests to measure the resilience and durability of such surfaces to conditions experienced by overhead line conductors. Tests to examine thermal ageing, thermal cycling, UV exposure, long term ambient outdoor environment exposure, and corona exposure testing were conducted and the evolution of surface superhydrophobicity was quantified. A high degree of resilience was observed for most of the testing. The feasibility of manufacturing upscale is discussed in addition to optimising test methods.
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