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Demonstrated long-term electrical reliability of overhead transmission line surge arresters (TLSA) must now be matched by improved mechanical reliability of the installations. The choice of configuration, including externally gapped (EGLA) and non-gapped (NGLA) designs, as well as the mounting arrangements, affects the applied stresses. NGLA suspended from conductors have pendulum frequencies and...
This is a position paper prepared by the IEEE Task Force on Insulator Icing Test Methods. Test methods for evaluating flashover voltage of ceramic and nonceramic insulators under ice, snow, and cold-fog conditions are recommended. The paper describes the procedure to be followed at various stages of an evaluation test including preparation of the test object, insulator precontamination, ice, snow,...
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