ANSI Brown glazed Transmission Line Post Porcelain Insulator ANSI 57-3S
Description:
1. Line post insulators shall conform in all respects to the requirements of ANSI standard.
2. The insulators shall be made of good commercial-grade wet-process porcelain. The entire surface of the insulator, with the exception of a firing surface, shall be glazed.If gray is required, it shall be in accordance with ANSI Z55.1-1967 (R1973).
3. Metal parts shall be made of a good commercial grade of malleable iron, ductile iron, steel, or aluminum. Ferrous parts, other than stainless steel, shall be galvanized in accordance with ASTM A153.
Specification:
1. Creepage distance: 737mm
2. Cantilever strength: 12.5kN
3. Low frequency flashover voltage: Dry: 125kV Wet: 95kV
4. Critical impluse flashover voltage: Positive: 200kV Negative: 260kV
5. Radio Influence voltage: Test voltage to ground: 30kV
Application:
Line post porcelain insulators are used for insulation and support of live parts in outdoor power plants, distribution devices and electrical equipment of power frequency AC substations.
Pre-sales service:
Choose the proper reactor type
Installation recommendations and to provide technical information
Satisfied users of the special design requirements
After-sales service:
Offer professional equipment installation instructing
Provide spare parts for wearing parts(such as post insulator, bolt, etc.)
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