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How is rubber used as an electrical insulator?
28 Jun 2019
Insulators for high voltage lines can be made of wood, ceramics, glass, rubber and other materials.How is rubber used as an electrical insulator?
The electrical behavior of many materials, such as why some are good conductors, some semiconductors, and some Insulators, is now well explained on the basis of the band theory.
It points out that there are only strong covalent bonds or weak molecular overlap PI bonds, most of the so-called electrons, the lower valence band, leaving no future higher energy bands, the electron conduction band, which will act as an electrical insulator.
Rubber, plastic, glass, dry wood, oil and so on are Insulators.Most electrical Insulators can be made of silicone rubber, also known as silicone rubber Insulators.
Rubber has the added advantage of mechanical flexibility and can be stretched into various shapes, such as gloves, bags, and other required forms of electrical insulation.
Silicone rubber material is a common material of electrical Insulators, replacing traditional Insulators, sometimes called polymer Insulators.
Rubbers, plastics, glasses, dry wood, oils, etc are Insulators on this count. Most of electrical Insulators can be made of silicone rubber, also known as silicone rubber insulator.
Rubber has additional advantage of mechanical flexibility and can be drawn into shapes, such as gloves, bags, and other required forms of electrical Insulators.
Silicone rubber materials are popular for electrical Insulators, replacing the traditional Insulators, sometimes they called polymer insulator.
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