Preparation method of hard material sheath composite insulator with bird droppings prevention grading shield

Abstract

A preparation method of a hard material sheath composite insulator with a bird droppings prevention grading shield. The preparation method comprises the following steps of: inserting an insulating core rod into a center hole of a hardware fitting, and then integrating the insulating core rod and the hardware fitting through crimping or gluing; respectively putting two ends of an insulating core rod-hardware fitting composite body into molds, integrally forming a hard material sheath made of a hard material and the bird droppings prevention grading shield on the outer surface of the upper end of the core rod, and forming a hard material sheath made of a hard material on the outer surface of the lower end of the core rod; and forming a silicon rubber sheath and a silicon rubber umbrella shed on the outer side of the insulating core rod-hardware fitting composite body with the hard material sheaths and the bird droppings prevention grading shield. By wrapping the upper end and the lower end of the insulator core rod with the hard material sheaths and additionally arranging the bird droppings prevention grading shield between the upper end of the core rod and the upper end fitting, the composite insulator has the advantages of high hardness, corrosion resistance, bird pecking resistance, bird droppings prevention and the like, the preparation methods of the hard material and the whole composite insulator are improved, and the performance of the composite insulator is further improved.

Description

technical field [0001] The invention belongs to the technical field of insulator manufacture, and in particular relates to a method for preparing a composite insulator with a hard material sheath with an anti-bird droppings equalizing cover. Background technique [0002] Composite insulators are widely used in power systems because of their small size, light weight, and high pollution flashover voltage resistance. With the widespread use of composite insulators, composite insulators on transmission lines often appear to be pecked by birds and polluted by bird droppings. Birds pecking composite insulators will cause damage to composite insulators, and bird droppings polluting insulators will increase the hidden danger of insulator flashover. The main parts where birds eat composite insulators are the sheds and sheaths at the upper and lower ends of composite insulators. Birds pecking at the shed of the composite insulator will cause penetrating through holes or partial tear...

AI Technical Summary

Problems solved by technology

[0003] Based on the problem that traditional composite insulators cannot prevent bird pecking and bird droppings, the present invention provides a method for preparing a composite insulator with a hard material sheath with an anti-bird dropping pressure equalizing cover

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