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Line insulators

Line insulators include long-rod line and post insulators, operated on 110/6kv power engineering station, which also divided into distribution and transmission insulators, porcelain and polymer insulators.

Line insulators

Most of line insulators used on outdoor power systems, ceramic insulators are earliest insulators used in electrical systems to support and isolate.

Line insulators as well as post ones, belong to the group of especially important elements of the over-head transmission and distribution power lines. The ceramic long-rod insulators constructions are resistant to electric breakdowns, but at the same time are mechanically fracture able.

Line insulators are made of ceramic materials, the assumed time interval of work of the insulator without breakage can be considered as a so-called “life time”.

Line insulators are made of silicone rubber, called polymer insulators, operating on transmission lines and distribution power lines can be considered as a so-called “anti-pollution”.

Long rod insulators are line insulators, normally designed up to 110kv used on overhead lines. Sometimes, these insulators are replacement disc insulators. Polymer long rod insulators are popularly used worldwide.

Post insulators are line insulators, including line post insulators, pin type insulator and pin post insulator. Pin post insulator is special insulator, which designed with a big sheath.

Line insulators can be divided into distribution insulators and transmission insulators according to insulator voltage. In general, used below 69kv electrical systems, these type insulators called distribution insulators; upto 69kv called transmission insulators.

 

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