Blog

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 […]

Insulator testing machines
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 […]

Insulator testing machines
April 22, 2019

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. […]

Electrical insulators, Polymer insulators
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
February 13, 2018

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 fibres – usually glass – in a resinbased 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 are intended […]

Electrical insulators, Polymer insulators
February 12, 2018

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 […]

Electrical insulators, Polymer insulators
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 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