Tag Archives: composite insulator

Isolateur polymère: premier fabricant en Tanzanie et en Afrique de l’Ouest

L’Afrique rêve depuis longtemps de créer sa propre usine d’isolateurs polymères haute tension et cette année, leur rêve devient réalité. Le premier fabricant d’isolateur en caoutchouc de silicium 33kV (isolant polymère) passe désormais régulièrement à une production réelle. Ce n’est pas seulement un début, mais aussi une étape importante pour le peuple tanzanien. Étant un […]

Insulator testing machines, Polymer insulators

Renforcement des isolateurs composites de lignes OH

La création d’un isolant composite a commencé avant les années 1960. Ce nouvel isolant a d’abord été appliqué en Amérique puis en France et en Allemagne peu de temps après. Il a été assez lent pour un utilisateur d’accepter un isolant avec un matériau en caoutchouc de silicone au début, car la plupart des innovations […]

Electrical insulators, Polymer insulators

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

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

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

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

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

Test des hangars et du matériau de la gaine de l’isolateur composite

Le hangar et la gaine de l’isolateur composite sont en caoutchouc de silicone de type vulcanisant à haute température (HTV), ayant une teneur en polymère de silicone en poids de 30% minimum. Le trihydrate d’alumine (ATH) est utilisé comme charge. La charge est correctement mélangée avec des composés de silicone pour assurer une distribution uniforme. […]

Insulator testing machines, Polymer insulators
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