The live conductors are supported by insulators, the length of which increases with rising voltage of the circuit. There are glass insulators for sale of suspension insulators: cemented cap suspension insulators interlinking or Hewlett suspension insulators and hyperlink or core suspension insulators. glass insulators on power lines , structure load hypothesis and failure sequence. Because flashover distance of high voltage line post insulator and inner via pass of higher voltage porcelain line post insulator are the similar,so it will only take place external flashover, no occur internal flashover.Consequently this trait of high voltage line post insulator , let it become no breakdown insulator. The relative freshness of these new materials meant that they place up a series of new challenges, prior to they can be incorporated into the power method applications, like adhesion amongst the components, suitable sealing of joints to avert moisture, development of suitable finish fittings and transfer of tensile load.
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