Insulator testing machines

Machines and devices to perform electrical tests and mechanical tests on electrical insulators,cables and fittings

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 […]

Insulator producting machine, Insulator testing machines
November 18, 2017

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 […]

Electrical insulators, Insulator testing machines, Polymer insulators, Porcelain insulators, Toughen glass insulators
February 27, 2017

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
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 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 8, 2017

Thermal-mechanical pre-test of composite insulator in IEC 61109:2008

Thermal-mechanical test is one of the most significant test for composite insulators. Here we have partial section of International Standard IEC 61109 2008: Insulators for 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. IEC […]

Insulator testing machines
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 […]

Electrical insulators, Insulator testing machines, 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
January 22, 2017

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 Tri hydrate (ATH) is used as filler. The filler is properly mixed with silicone compound to ensure the uniform distribution. Thickness of sheath shall be minimum 3 mm and shall […]

Insulator testing machines, Polymer insulators
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