Double Iron Head Ceramic Pull Rod

The main function of insulators is to achieve electrical insulation and mechanical fixation, for which various electrical and mechanical performance requirements are specified. For example, under the specified operating voltage, lightning overvoltage, and internal overvoltage, no breakdown or surface flashover occurs; under the specified long-term and short-term mechanical loads, no damage or destruction is caused; after long-term operation under specified mechanical and electrical loads and various environmental conditions, no significant deterioration occurs; the hardware of insulators does not produce any noticeable corona discharge under operating voltage to avoid interference with radio or television reception. Since insulators are widely used, their connecting hardware also requires interchangeability. Moreover, the technical standards for insulators require various electrical, mechanical, physical, and environmental condition tests based on different models and usage conditions to verify their performance and quality.