Development of conical silicone rubber bushings to replace porcelain on SF/sub 6/ circuit breakers

A unique design of a composite polymer bushing is introduced and evaluated. A comprehensive test program defined the mechanical and electrical performance of a conical silicone polymer composite bushing. This evaluation also included aging and pollution tests to assess the long-term stability of the new design. Results show that the composite bushing offers technical and safety benefits over conventional porcelain bushings.<
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