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ANSI 57-3 Porcelain C-120 Line Post F Neck Insulator

ANSI 57-3 Porcelain C-120 Line Post F Neck Insulator

  • High Light

    F Neck Porcelain Post Insulators


    ANSI 57-3 F Neck Insulator


    Porcelain F Neck Insulator

  • Color
    Light Gray, Brown
  • Material
    Porcelain C-120
  • Application
    Transmission And Distribution Of Electric Power
  • Standard
  • Size
    Customized Size
  • Sample
  • Oem
  • Pack
    Standard Export Packing
  • Place of Origin
  • Brand Name
  • Model Number
    ANSI 57-2
  • Minimum Order Quantity
  • Price
  • Packaging Details
  • Delivery Time
  • Payment Terms
    T/T, L/C
  • Supply Ability

ANSI 57-3 Porcelain C-120 Line Post F Neck Insulator

Professional F Neck Ansi 57-3 Line Post Porcelain Insulators / Used For U.S.
Line post porcelain insulators shall conform in all respects to the requirements of ANSI standard. 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). 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.

 ANSI 57-3 Porcelain C-120 Line Post F Neck Insulator 0













 ANSI 57-3 Porcelain C-120 Line Post F Neck Insulator 1


Technical Data Sheet
ANSI CLASS Creepage distance (mm) Dry arcing distance (mm) cantilever strength (kN) Lower frequency flashover voltage(kV) Critical impulse flashover voltage(kV) Test voltage to ground (kV)
Dry Wet Positive Negative
57-33 737 311 12.5 125 95 200 260 30


ANSI 57-2S Line post insulators are designed to provide rigid support of conducting cable while offering the maximum resistance to damage from electrical or mechanical events. Horizontal and gain-base line post insulators are often used in applications to avoid the need to install a cross-arm on the pole. 
Our porcelain insulators are manufactured using a wet porcelain process and cured in an environmentally controlled production facility to ensure a complete and even cure of the porcelain while also resulting in the highest quality surface finish.



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.)