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How porcelain pin post insulator is working?

Porcelain pin post insulator is used in electrical equipment to support and separate electrical conductors without allowing current through themselves. An insulating material used in bulk to wrap electrical cables or other equipment is called insulation. The Porcelain pin post insulator is also used more specifically to refer to insulating supports used to attach electric power distribution or transmission lines to utility poles and transmission towers. They support the weight of the suspended wires without allowing the current to flow through the tower to ground.

porcelain pin post insulators               ceramic pin post insulator

An electrical Porcelain pin post insulator is a material whose internal electric charges do not flow freely, and therefore make it very hard to conduct an electric currentunder the influence of an electric field. A perfect Porcelain pin post insulator does not exist, because a portion of the Porcelain pin post insulator could become electrically conductive if the voltage applied across it exceeds the breakdown voltage. This is known as breakdown voltage of a ceramic pin post insulator. Some materials such as glass, paper and Teflon, which have high resistivity, are very good electrical insulators. A much larger class of materials, even though they may have lower bulk resistivity, are still good enough to insulate electrical wiring and cables. Examples include rubber-like polymers and most plastics. Such materials can serve as practical and safe insulators for low to moderate voltages (hundreds, or even thousands, of volts).

To study the working principle of porcelain pin post insulators has a lot of help for your choosing this type insulator or other insulator.


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