Station Post Insulator

Description

1. Metal flange the flange use high density ductile iron or malleable iron ,every pieces test qualified after magnetic powder inspection .Flange surface are hot galvanized , zinc thickness meet related IEC and ASTM standard requirement
2. Porcelain the insulation part use high aluminum porcelain C130 , the porcelain surface covered a layer of hard and shinning glaze , color can be grey , brown or white.
3. Cement excellent Portland cement make the assembled insulator have very good mechanical performance and the quality more reliable.
4. Silicone sealant we sue a layer of silicone sealant cover the cement ring surface , just to protect cement have a stable performance for longer life ,In the meantime , it can prevent cement dust fall down to pollute the electrical instrument.