The scope of the role and influence of the insulator

    Tower of power lines connected at one end to hang a lot of disk-shaped insulator, it is to increase the creepage distance, the current guide the earth, usually made of glass or ceramic, which is the insulator. Insulators play an important role in the high-voltage wire connection, when there is lightning or high voltage, insulator will play an important role in the effective protection of electrical equipment from damage.

    Insulators always play the role in the power industry, in order to prevent dust and other contamination in the insulator attached to the surface, forming a path is the voltage across the insulator breakdown, ie creepage. Using insulators that, to effectively prevent the surface of ups and downs, to prevent the adhesion of harmful substances, should be kept clean, avoid the formation of passage, the breakdown voltage across the insulator. Therefore, increasing the surface distance, ie creepage distance along the insulating surface discharge distance that is leaking from the called creepage distance. When using the insulator to increase the site's climb away from the specific surface creepage distance = distance / maximum system voltage. When using the insulator according to different levels of contamination, heavy contamination areas generally use the creepage distance of 31 mm / per kV insulators, filthy relatively light region can be used to climb away from the relatively small insulators. The use of different types of insulators and geographical scope not the same, you want to use and choose according to the specific circumstances, the effective protection of electrical equipment.

    Zero value refers to the operation of the insulator in the insulator potential distribution across the insulator close to zero or equal to zero. This insulator can effectively protect the electrical equipment, effectively protect equipment from damage.

    Effect of zero or low values insulator: insulated wire line depends on the insulator strings, due to manufacturing defects or external effects, the insulation performance of the insulator will continue to deteriorate when the insulation resistance is lowered or when called low or zero value to zero insulator We had lines for testing, the proportion of zero or low values as high as insulators around 9%. Insulators are smooth, it can reduce the capacitance effect between the wires, in order to reduce the loss of current. Insulators can be kept current, the equipment for good protection with high voltage or lightning, it will play an important role