Test of sheds and sheath material of composite insulator

Composite insulator’s shed and sheath are be made of high temperature vulcanizing (HTV) type silicone rubber, having silicone polymer content by weight 30% minimum. Alumina Trihydrate (ATH) is used as a filler. The filler is properly mixed with silicone compounds to ensure uniform distribution. The thickness of the sheath shall be a minimum of 3 […]

Insulator testing machines, Polymer insulators

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

Uprating of composite insulators of OH lines

The creation of composite insulator started before the 1960s. This new insulator was firstly applied in America and then in France and Germany soon afterwards. It was quite slow for user to accept insulator with silicone rubber material in the beginning as most technical innovation would have some key problems to solve in the history. […]

Overhead line insulators, Polymer insulators

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 […]

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Introduction of IEC61109 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

Composite insulators consist of an insulating core, bearing the mechanical load protected by a polymeric housing, the load being transmitted to the core by end fittings. Despite these common features, the materials used and the construction details employed by different manufacturers may be quite different. Some tests have been grouped together as “Design tests”, to be performed only […]

Overhead line insulators, Polymer insulators

Contune INTL participated INMR World Congress in Barcelona

Contune International Corporation and its headquater company Qianheng Automation have participated in World congress of electrical field held by INMR in Barcelona Sitges. The congress started on 5th November to 8th November 2017. The 2017 INMR WORLD CONGRESS has brought hundreds of power engineers from across the globe to Sitges this year, many of which have given presentation […]

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Content of IEC 61284:1997 Overhead lines – Requirements and tests for fittings

International standard IEC 61284:1997 “Overhead lines – Requirements and tests for fittings” has defined requirements and test methods of electrical fittings (line hardware) for overhead lines. The complete IEC standard includes English and French language version, it’s too long and a little difficult for quick explore. Here we quote the content of IEC 61284 for […]

Insulator testing machines, Overhead line fittings