138kV Composite Polymer Station Post Insulators are design, manufacture, test and ship as per standard IEC 61952, ANSI C29.17 and client鈥檚 requirements.
(mm)Dry Arcing Distance
(kN)Power Frequency Withstand Voltage
(Wet 1 min)
(kV)Lightning Impulse Withstand Voltage
1.End-fitting for 138kV composite station post insulators:
Cast Steel, Hot Dip Galvanized.
2. Minimum thickness of the galvanization: 86渭m.
2.1 Material: Epoxy & Glass Fiber.
2.2 Diamter: 桅70mm.
3.1 Material: HTV Silicone.
3.2 Color: Grey, Red or others.
鈼廠ilicone Rubber Housing
Better hydrophobicity migration performance
Better pollution resistance
Excellent electrical insulation properties
Excellent aging resistance
鈼廋orrosive Resistance Fiberglass Core
Excellent resistance to high temperature, stress corrosive & acid attack
Better damping Performance
High tensile strength (锛?200Mpa)
Excellent creep resistance
Excellent anti-fatigue fracture properties
鈼廋rimping & Multiple Sealing
High mechanical strength
Reliable sealing performance between rods
and end fittings
All insulators are packed plywood cases or fumigated solid wood case in order to protect the products during land, air and sea transportation. Special packaging arrangements can be accommodated upon the users' request.Composite Station Post Insulator suppliers
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