Insulators & Busbar Support / SHINING E&E INDUSTRIAL is a professional manufacturer of Electrical Terminal Block, Fuse Holder, Fuse Block, Solid State Relay (SSR) for more than 40 years.

Our main products include various Insulator and Busbar Support, such as Low Voltage Insulator, High Voltage Insulator, Plastic Insulator, Resin Insulator, Epoxy Insulator, Ceramic Insulator, Porcelain Insulator, 1.2KV Insulator, 6.6KV Insulator, 11KV Insulator, and Busbar Support

A perfect insulator does not exist, because even insulators contain small numbers of mobile charges (charge carriers) which can carry current. In addition, all insulators become electrically conductive when a sufficiently large voltage is applied that the electric field tears electrons away from the atoms. This is known as the breakdown voltage of an 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 prevent significant current from flowing at normally used voltages, and thus are employed as insulation for electrical wiring and cables. Examples include rubber-like polymers and most plastics.