69 kv polymer suspension insulator is manufactured by protrusion process using boron free ECR grade glass fiber having requirement mechanical and electrical characteristics. The fittings of polymer insulators can be forged steel and the shed is made of composite material.
1.Sizes and Technical data of 69 kv polymer suspension insulator:
Rated mechanical bending load
Min nominal creepage distance
1min power frequency wet withstand voltage (kV)
Full wave lightning impulse withstand voltage peak value (kV)
69 kv polymer suspension insulator features:
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 for 11kv polymer disc insulators. 4.Light weight, easy and economical to transportation and installation. 5.Not brittle, and reduce the purchasing quantities for spare parts.