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Changsha Power Electric Co.,Ltd. 86-731-8465-7833;
30kV Porcelain Line Post Insulator

30kV Porcelain Line Post Insulator

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    30kV Porcelain Line Post Insulator


    ANSI 57-3 Porcelain Line Post Insulator


    30kV High Voltage Post Insulators

  • Color
    Light Gray
  • 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 57-3
  • Minimum Order Quantity
  • Price
  • Packaging Details
  • Delivery Time
  • Payment Terms
    T/T, L/C
  • Supply Ability

30kV Porcelain Line Post Insulator


Tie top ANSI standard high voltage Line Post Porcelain Insulator brown color





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, oraluminum. Ferrous parts, other than stainless steel, shall be galvanized in accordance with ASTM A153.





ANSI CLASS Creepage distance (mm) Dry arcing distance (mm) cantilever strength (kN) Lower frequency flashover voltage Critical impulse flashover voltage Test voltage to ground (kV)
Dry(kV) Wet(kV) Positive(kV)
57-3 737 311 12.5 125 95 200 30



Competitive advantages:


1. Products are producd by ourselves, which ensures competitive prices, good profit margin and flexible services; 

2. OEM & ODM services are acceptable and various styles, latest designs are recommended once in a while;

3. We have large market share home and abroad;

4. We have lots of experience in providing good service to retailers. We focus on electric products, marketing, services and logistics. It is an important manufacturer and export trader with several decades of experience in designing, researching, manufacturing, testing and logistics.