Transmission Brown Glazed 12.5kN Porcelain Line Post Insulator

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.)