1. It is small in size and light in weight, being about 1/5 to 1/7 of the porcelain insulators of the same voltage level. It is convenient for transportation and installation.
2. The mechanical strength of the composite insulator is high, the structure is reliable, the performance is stable, and the safety margin for operation is large, providing a guarantee for the safe operation of the lines.
3. The electrical performance of the composite insulator is superior. The silicone rubber umbrella sleeve has good hydrophobicity and migration properties, good anti-pollution performance, strong anti-flashover ability, and can operate safely in heavily polluted areas without the need for manual cleaning. It can also avoid zero-value maintenance.
4. The composite insulator has acid and alkali resistance, heat aging resistance and electrical erosion resistance; it has good sealing performance and can ensure that the internal insulation does not get damp.
5. The composite insulator has good anti-fracture performance and strong shock resistance, and will not experience brittle fracture accidents.
6. The composite insulator is replaceable and can be used interchangeably with porcelain insulators.