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Electrical insulator

Electrical insulator is a material that resists the flow of electric charge, such as glass, porcelain, silicone rubber, paper or Teflon.

Electrical insulator            Electrical insulator

An Electrical insulator, also called a dielectric, is a material that resists the flow of electric charge. In insulating materials valence electrons are tightly bonded to their atoms. These materials are used in electrical equipment as insulators or insulation. Their function is to support or separate electrical conductors without allowing current through themselves. The term also refers to insulating supports that attach electric power transmission wires to utility poles or pylons.

Some materials such as glass, porcelain, silicone rubber, paper or Teflon are very good electrical insulator materials. Even though they may have lower bulk resistivity, a much larger class of materials 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 electrical insulator for low to moderate voltages (hundreds, or even thousands, of volts).

More details about electrical insulator, especially for electrical composite insulators, please visit Orient Power website.

 

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