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December 19, 2019

Polymeric insulator:First manufacturer in Tanzania and Eest Africa

Africa has been dreaming about establishing its own factory of high voltage polymeric insulators since long ago, and this year their dream come true. The first manufacturer of 33kV silicon rubber insulator (polymeric insulator) is now moving its pace steadily to real production. This is not only a start but also a milestone for Tanzanian […]

Company News
August 24, 2019

Attendence of Electrical,Power&Renewable Energy Indonesia 2019

Contune International Corp will attend the electrical expo in Jakarta, Indonesia from 11th to 14th.August 2019. The 3 days exhibition will hold hundreds of manufacturers in electrical field. For us, we will show our test machines for HV insulators there as well as production line of insulators. For all factories of ceramic insulators, polymeric insulators […]

Company News
July 15, 2019

Indian market grows on composite insulator field

As electrical industry grows with bigger demands and supplies, electrical high voltage insulators has entered a new stage of production furious. More and more factories in India, big or small, has smelled the chance and are eager to grasp the profit. When we talk about power construction, we feel difficult to ignore an important electrical […]

Company News
April 1, 2018

Contune Intl Corp will attend IEEE PES T&D Conference and Exposition 2018 in Denver USA

Contune International Corporation and her collaborating factory will attend IEEE PES T&D Conference and Exposition in Danver,Colorado,USA from 17th to 19th April. Our booth no.:907 By our manufacturer name: Zibo Qianheng Automation & Engineering Co.,ltd Here we have our staff to introduce our testing machines and production machines of composite insulator, ceramic insulator and glass […]

Company News
February 17, 2017

Routine tests of composite insulator with voltage greater than 1000V in IEC 61109 2008

Last time we talked about sample test of silicone composite insulator for AC system above 1KV, the IEC 61109:2008 has defined it clearly. Today let’s the coming section”routine test” of polymeric insulator in this IEC 61109: 13 Routine tests 13.1 Mechanical routine test Every insulator shall withstand, at ambient temperature, a tensile load at RTL […]

Insulator testing machines, Polymer insulators
February 15, 2017

Sample test method and rules of suspension and tension composite insulator in IEC 61109:2008

Sample test is a major method of insulator acceptance inspection for mass production. It is widely used by inspectors of insulators from manufacturers, power girds and electrical laboratories. Here we have definition, rules, test method and acceptance criteria of composite insulator of suspension type and tension type of international standard IEC 61109:2008 “spension and tension […]

Polymer insulators
February 13, 2017

Damage limit proof test and test of the tightness of the interface between end fittings and insulator housing in IEC61109:2008

Damage limit proof test and test of the tightness of the interface between end fittings and insulator housing,these two tests are two of the most important test in inspection process of composite insulator. Here is how international standard IEC 61109:2008 “Suspension and tension insulators for AC system with a nominal voltage greater than 1000V” defines these 2 […]

Insulator testing machines, Polymer insulators
February 4, 2017

Insulators tested in vertical position and horizontal position

As we know,high voltage insulators shall subject to mechanical failing load test, and when we mention “test in vertical position and horizontal position”, this more refer to suspension insulator, tension insulator, post insulator and pin insulator. The suspension and tension insulator are normally tested in horizontal direction, as they are long in shape, with length […]

Insulator testing machines, Overhead line insulators, Polymer insulators
January 25, 2017

End fitting of railway insulator of Indian market

End fitting of railway insulator of Indian market The end fittings of silicone composite insulator for 25KV railway overhead traction have specific requirements. The end fittings shall be made of spheroidal graphite cast iron to grade: 400/15 of IS:1865-1991 or forged steel fittings to BS-970(Part-II). Approval of the type test of the insulator implies employment […]

Insulator testing machines, Overhead line fittings, Polymer insulators