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LATEST DEVELOPMENTS AND EXPERIENCE.WITH COMPOSITE LONGROD INSULATORS

, , , , , , и .
(1986)

Аннотация

Bdsed on a specific type of composite longrod insulators with silicone rubber sheds the development since Cigre-session 1980 (Paper 22 - 11) is presented. Experience in test stRtions and further extensive service experience show excellent results. The solution of the "brittle fracture" phenomenon, the only unsolved problem of the above mentioned Paper of the 1980 session, is described in detail and test methods are proposed. In addition latest results of investigations regarding surfnce behaviour of polymeric shed materials, which is of permanent interest, are discussed. Such investigations are erosion resistivity, water absorption by diffusion and water repellency. Future prospects may be regarded as very positive particularly for HV-DC and EHV-AC lines as well as for distribution lines with pollution and/or vandalism problems.

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