Product Description

technical parameter

best price ANSI 57-4 Porcelain Line Post Insulator technical parameter:

Creepage distance(mm)	116
Dry arcing distance(mm)	368
Cantilever strength(kN)	12.5
Power frequency flashover voltage(kV)	dry:140  Wet:110
Critical impulse flashover voltage(kV)	Positive:230  Negative:340
Radio interference voltage	44
Standard	ANSI 29.7

Packging, shipping

Orient Power will choose the most reasonable packing material and packing dimensions, all wooden packing is fumigated, and dimensions are designed to be economical to container shipment.

We will supply test report and packing pictures before shipment porcelain line post insulator to customers.

Our Services

Orient Power services
Instanct response for each requirement about best price ANSI 57-4 Porcelain Line Post Insulator 
high quality and competitive price
reasonable advice to each project
regular order track information
excellent after sale service for best price ANSI 57-4 Porcelain Line Post Insulator 
test report and photos of test before delivery  
photos of packing and container loading before shipping
  We have customers from all over the world, USA, South America, Europe, England, France, Middle East, South East Asia, South Africa, African countries. We welcome customers to our factory for power porcelain line post insulator and fittings approval.

  We participate international exhibition for high voltage insulators.
We are supported by the government because of our contribution to power system
We are the member of China insulator standard committee
We are one of the company of insulator standard draft and setting.

Company information

Factory Site and Workshops

Workshops and production of porcelain line post insulator.
56000m2 factory site, 5 workshops

Test Lab and Test Equipment

We ensure every piece of porcelain line post insulator supplied by Orient Power China is all under routine test and sample test, our high voltage insulator products can pass all type test required on international IEC and ANSI insulator standard.

Qualification Certificate and Type Test Report

Our insulator production and management comply with ISO 9001-2008
Our porcelain insulators get approval from high speed railway power grid

We get type test report for 10kv-500kv high voltage porcelain insulators.

FAQ

Q: When enquire a composite insulator price, what parameter should be given to the supplier?
A: For composite insulators, if you can't provide the following information, it will be hard to quote exactly. 
  1. rated voltage 2. section length 3. dry arcing distance 4. creepage distance 5. mechanical strength 

Q: When enquire a porcelain insulator price, what parameter should be given to the supplier?
A: For porcelain insulators, if you can't provide the following information, it will be hard to quote exactly.
  1. rated voltage 2. creepage distance 3. mechanical strength 4. color of insulator

Q: How to select a supplier if you don't know the insulator market?
A: Select a experienced person in the power insulaor industry
  The cheapest can not be good at any market
  Choose the suitable and reasonable product and price

Q: How to select a supplier if you don't know the insulator product?
A: Select a experienced person in the power insulaor industry
  Find a supplier who can communicate well in English
  Find a supplier who can give you some suggestion on project