NDLI: Anti-icing performance of RTV coatings on porcelain insulators by controlling the leakage current

Content Provider	IEEE Xplore Digital Library
Author	Zhihai Xu Zhidong Jia Zhining Li Xiaoxing Wei Zhicheng Guan Macalpine, M. Yuming Zhao Yan Li
Copyright Year	1994
Abstract	Considerable work has been done on preventing ice formation on insulators and the modification of the surface characteristics by increasing the contact angle and decreasing the adherent force have been tried with some degree of success. Heating by electric current has however proved to be an effective and practical method for de-icing transmission lines, but difficult to apply to insulators. A room temperature vulcanized (RTV) silicone rubber coating containing sufficient carbon black to render it partially conducting but not enough carbon to lose its surface hydrophobicity, has been investigated to determine if the heat generated would suffice to inhibit ice growth on the insulators. The heat exchange progress was analyzed and the leakage current through it to prevent ice forming was estimated and coatings developed accordingly. The anti-icing performances of these RTV silicone rubber coatings with different leakage current magnitudes were compared in a climate chamber. The results showed that the surface heating effect, together with the hydrophobicity, could significantly reduce the formation of ice on insulators.
Sponsorship	National Natural Science Foundation of China (NSFC) Region Centre Ville de Tours Conseil General D'Indre et Loire ABB IEEE Sandia National Laboratories TOSHIBA
File Size	831116
File Format	PDF
ISSN	10709878
Volume Number	18
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Insulators Coatings Leakage current Ice Surface treatment Conductivity Carbon resistance heating Icing insulator RTV coating leakage current
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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