Blog

June 7, 2020

Alternatives solution of External Insulation for EHV and UHV Bushings

Different housings are available these days for the external insulation of EHV and UHV bushings. These include: porcelain, which may or may not also be coated with RTV silicone material to improve pollution performance; hybrid housings consisting of a porcelain core with a polymeric housing; and a composite housing based on an internal FRP tube […]

Overhead line insulators, Polymer insulators, Porcelain insulators
June 4, 2020

Hipot Test (Dielectric withstand test)

What is HIPOT test? A Hipot test is a test for insulation. Its full name is high potential test, which actually means dielectric withstand test. Why should we do the hipot test? Hipot test is an important test, it helps users to identify the peek withstand value of insulation, and discrepancy of insulation material. In […]

Insulator testing machines, Other
May 8, 2020

Porcelain Post Insulators

Porcelain post insulators are widely used on electrical power substation and transmission line systems. In the substation line system, post insulators are commonly seen as station post insulators. On both sides of the station post insulator, there are flanges with drilled holes for bolts fixing. These station post insulators are fixed on the bottom base […]

Porcelain insulators
April 27, 2020

What machines are needed for 11kV polymer insulator production line?

Polymer insulators are important electrical items in electrical power overhead transmission, distribution, and substation lines. They provide reliable insulation between cables and iron towers, or between conductors and connecting fittings like clamps so that the electricity can be transmitted safely. With the global growth of the electrical industry, more and more people smell the potential […]

Insulator producting machine, Insulator testing machines
April 14, 2020

Re-open: Full production capacity for insulator machines

Contune International Corporation has recovered full production capacity. With the effective control of the epidemic situation in China, most of the Chinese factories have re-opened and workers are gradually coming back to work. Back to 3 weeks ago, we have already done good preparation for this. And now, all the workers, engineers, management staff have […]

Company News
March 28, 2020

Composite insulator (Polymeric insulator)

What is a composite insulator? The composite insulator is also called the polymeric insulator. It is developed after toughened glass insulator and ceramic insulators, whose main insulation structure is consists of a fiberglass core (rod) and silicon housing and sheds. One both sides, 2 metallic fittings are installed on each side with crimping technics. These […]

Polymer insulators
February 29, 2020

1.Scope and object of IEC61109:2008 INSULATORS FOR OVERHEAD LINES – COMPOSITE SUSPENSION AND TENSION INSULATORS FOR A.C. SYSTEMS WITH A NOMINAL VOLTAGE GREATER THAN 1 000 V – DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA

Scope and object This International Standard applies to composite suspension/tension insulators consisting of a load-bearing cylindrical insulating solid core consisting of fibers – usually glass – in a resin-based matrix, a housing (outside the insulating core) made of polymeric material and end fittings permanently attached to the insulating core. Composite insulators covered by this standard […]

Overhead line insulators, Polymer insulators
February 5, 2020

Delivery time may be extended due to coronavirus in China

Early since January 2020, the new type of coronavirus has shown up in China and it is now spreading to a wider range. Without strict control and official recommendation of “stay at home” to the mass majority of people, this coronavirus may have affected more people can cause a bigger loss. Now China government has […]

Company News