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Porcelain line post insulator 72.5KV,transmission line post insulators

Porcelain line post insulator 72.5KV is widely used in many countries, and these horizontal ceramic line post insulators / transmission line post insulators are used with long stud or short stud which is based on the types of applied crossarms.

Porcelain line post insulator 72.5KV              Porcelain line post insulator 72.5KV

Transmission line post insulators raw material:
The unique vertical integration of our insulators starts with the selection of raw materials. These are of high purity and with constant properties. The optimized mix is mixed and ground exactly in accordance with the formulation. Vacuum extrusion presses then shape the plastic filter cakes into cylindrical blanks, the so-called "bodies". During a precisely defined drying process transmission line post insulators reach the correct consistency for the subsequent forming process.

Porcelain line post insulator 72.5KV parameters:

Nominal voltage kv 72.5
Creeoage distance mm 1805
Cantilever strength kn 12.73
Low frequency withstand voltage dry: kv 250
Low frequency withstand voltage wet: kv 225
Lightning impulse withstand voltage: kv 350

Radio-influence voltage test: Three transmission line post insulators shall be selected at random and tested in accordance with 4.9 of ANSI C29.1. If one or more insulators fail to meet the requirements given in table 1, three additional insulators shall be selected at random and tested. Failure of one or more of these additional insulators shall constitute failure to meet the requirements of this standard.

More details about Porcelain line post insulator 72.5KV and transmission line post insulators tests, price, price guide, designs or manufacturing process, please contact Orient freely.

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Orient is an international line post insulator manufacturer and supplier of high quality porcelain line post insulators and porcelain pin post insulator.
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