national switchgears is a high voltage insulator supplier. the voltage of 10kv - 500kv series composite insulators, silicone rubber insulatorsalso known as polymer insulators or silicone rubber insulators, which include suspension long rod silicone rubber insulators, pin type composite insulators, station post polymer insulators, cross arm silicone rubber insulators, electrified railway polymer insulators, and so on.

advantages of polymer insulators:
as the replacement of porcelain insulators, silicone rubber composite insulators have many advantages:
1. excellent anti-pollution performance, suitable for high polluted area
2. free of cleaning, economical maintenance and suitable for difficult maintenance area
3. no need of zero value check
4. llight weight, easy and economical to transprotation and installation 
5. not brittle, and reduce the purchasing quantities for spare parts 

national switchgears is a high voltage insulator supplier. the voltage of 10kv - 500kv series composite insulators, silicone rubber insulatorsalso known as polymer insulators or silicone rubber insulators, which include suspension long rod silicone rubber insulators, pin type composite insulators, station post polymer insulators, cross arm silicone rubber insulators, electrified railway polymer insulators, and so on.

advantages of polymer insulators:
as the replacement of porcelain insulators, silicone rubber composite insulators have many advantages:
1. excellent anti-pollution performance, suitable for high polluted area
2. free of cleaning, economical maintenance and suitable for difficult maintenance area
3. no need of zero value check
4. llight weight, easy and economical to transprotation and installation 
5. not brittle, and reduce the purchasing quantities for spare parts