Affiliation:
1. School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China
2. State Grid Hubei Electric Power Company Co., Ltd., Xiaogan Power Supply Company, Xiaogan 432000, China
Abstract
Room-temperature vulcanized rubber is an excellent polymer material with excellent electrical insulation and mechanical properties, which can be used for field insulation of high-voltage bare wire. In this paper, a room-temperature cured coating material was prepared from α,ω-dihydroxy polydimethylsiloxane (PDMS), polyurethane-modified silicone material (PU-Si), and Methyltris(methylethylketoxime) silane (MOS). The study showed that the coating made by adding PDMS (70 g), PU-Si (30 g), CaCO3 (90 g), MOS (7 g), KH792 (5 g), and Mg(OH)2 (30 g) had a surface drying time of 19.1 min, tensile strength of 3.2 Mpa, volume resistivity greater than 4 × 1014 Ω·cm, breakdown voltage greater than 20 kV/mm, and flame retardant performance of the FV-1 level. The comprehensive performance of the insulation material meets the national standard of “Aerial insulated cables for rated voltage of 10 kV” (GB/T14049-2008), while the insulation material has been successfully applied to the overhead line renovation project of the State Grid Hubei Electric Power Company (Wuhan, China).
Funder
Xiaogan City Natural Science Program of China
Subject
Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces
Reference49 articles.
1. Assessment of the current intensity for preventing ice accretion on overhead conductors;Farzaneh;IEEE Trans. Power Deliv.,2006
2. Temperature profile of progressive damaged overhead electrical conductors;Cimini;Int. J. Electr. Power Energy Syst.,2013
3. Fault detection on insulated overhead conductors based on DWT-LSTM and partial discharge;Qu;IEEE Access,2020
4. Rao, C., Song, Y., Wang, H., Wang, J., and Jing, F. (2022, January 27–31). Robotic Visual Inspection and Positioning Method for Flexible Wire Coating Operation. Proceedings of the 2022 12th International Conference on CYBER Technology in Automation, Control, and Intelligent Systems (CYBER), Changbai Mountain, China.
5. Mechanism design of electric robot of distribution network for cut off or connection of leading wire;Yan;IOP Conference Series: Earth and Environmental Science,2019