Adhesive binding and suspended type polymer insulator chain element with double-umbrella or triple-umbrella disc-shaped umbrella shirt

Abstract

The invention discloses an adhesive binding and suspended type polymer insulator chain element with a double-umbrella or triple-umbrella disc-shaped umbrella shirt. The adhesive binding and suspended type polymer insulator chain element comprises a steel cap and a steel leg. A cavity with the U-shaped cross section is formed inside the steel cap. A conical head portion matched with the cavity is arranged on the steel leg. The conical head portion of the steel leg is arranged in the cavity of the steel cap. A polymer insulating piece is arranged between the conical head portion and the cavity. The polymer insulating piece comprises the double-umbrella or triple-umbrella umbrella shirt. The surface of the umbrella shirt is coated with an RTV stain-proofing coating. An adhesive binding portion is arranged at the center of the umbrella skirt. The adhesive binding portion is an inverted conical cavity. The conical head portion of the steel leg and the adhesive binding portion are connected into a whole in an adhesive binding mode through adhesives. The cavity of the steel cap and the adhesive binding portion are connected into a whole in an adhesive binding mode through adhesives. The adhesive binding and suspended type polymer insulator chain element can resist bird trouble, sand wind and external damage and can assist in climbing.

Description

technical field [0001] The invention relates to a composite insulator, in particular to a glue-mounted double-umbrella and triple-umbrella disk-shaped suspension polymer insulator string element. Background technique [0002] Polymer insulators are favored by the industry because of their great advantages over porcelain and glass insulators in terms of weight, zero measurement value, pollution flashover voltage resistance, and no self-explosion, especially the high pollution flashover voltage. The study found that there is a certain relationship between the shed structure of the insulator and the pollution flashover voltage, so that the pollution flashover voltage of polymer insulators with the same other conditions but different shed structures is different. [0003] The influence of the umbrella diameter on the pollution flashover characteristics of polymer insulators is as follows: the increase of the umbrella diameter increases the equivalent diameter of the polymer insu...

AI Technical Summary

Problems solved by technology

The decrease of the umbrella spacing can increase the creepage distance of the polymer insulator under the condition of a certain insulation height, but the pollution flashover voltage does not increase linearly with the increase of the creepage distance, and the umbrella spacing is too small, especially for the prismatic Protruding bell-shaped products are prone to bridging between umbrellas, and the utilization rate of creepage distance is relatively reduced

[0005] Polymer insulators operate in a wide geographical range, and different regions have their own geographical particularities, such as: insulators in some regions are seriously polluted, insulators in some regions are seriously damaged by birds, insulators in some regions are severely damaged by wind and sand, etc., resulting in complex operating conditions. Rubber composite insulators, glass insulators, and porcelain insulators are difficult to operate under various working conditions at the same time. At the same time, there are external uncertainties in the transportation, installation and maintenance of polymer insulators, which affect the safe operation of polymer insulators.

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