I often see strings of things hanging together like bowls on wires and cables, but I don't know what it is? Insulator is an important part of transmission line, which is related to the stable and safe operation of power grid. It includes insulating materials and gold tools, which are generally bonded with adhesive. The insulation material part can ensure that the insulator has good electrical insulation strength, and the hardware part is used to fix the insulator.
Insulator classification
According to the installation method, it can be divided into suspension insulator and post insulator.
Suspension insulators have been widely used in high voltage transmission lines and power stations. Substation flexible bus insulation and mechanical installation. Suspension insulators can be divided into disk suspension insulators and rod suspension insulators.
Post insulators are mainly used for the insulation of bus bars and electrical equipment in power stations and substations. Post insulators are usually used as parts of electrical equipment such as disconnectors and circuit breakers.
According to the insulation materials used, they can be divided into porcelain insulator, glass insulator and composite insulator (also known as composite insulator). Glass and porcelain insulators are mainly disk-shaped, and composite insulators are mainly long rod-shaped.
Porcelain insulator insulation part is made of electric ceramics, which has good chemical, thermal stability, aging resistance, electrical and mechanical properties, flexible assembly and other characteristics, but it has defects and is not easy to be detected.
The thermal insulation parts of glass bottles are made of tempered glass, which has high mechanical strength and is not prone to surface corrosion.
