Fixture for replacing strain insulator string

A technology of tension insulators and fixtures, which is applied in the direction of overhead lines/cable equipment, etc., and can solve problems such as insulator insulation failure and insulation impact
CN103594973AInactive Publication Date: 2014-02-19STATE GRID CORP OF CHINA +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
STATE GRID CORP OF CHINA
Publication Date
2014-02-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a tool for power construction, especially to a fixture for replacing a strain insulator string. The fixture comprises a cross-arm side clamp, a lead side clamp, an insulated connector and a tightening device, wherein the cross-arm side clamp is connected with the lead side clamp via the insulated connector, and the insulator connector is arranged at the two sides between the cross-arm side clamp and the lead side clamp; and the tightening device is used for shortening the relative distance between the cross-arm side clamp and the lead side clamp, is arranged at the two sides of the lead side clamp, penetrates through the lead side clamp and is then connected with the lead side clamp. The fixture of the invention can be conveniently, stably and fixedly mounted on line fittings where the strain insulator string is placed. In the process of insulator replacement, the two parallel sides of the insulator string are only equipped with insulated pull rods which are not conductive, and metal leading screws are placed behind the cross-arm side clamp and distanced from the insulator string, so that insulation performance of the insulator is not influenced.
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Description

technical field

[0001] The invention relates to a power working tool, in particular to a jig for replacing side strings of tension insulators. Background technique

[0002] Existing equipment for replacing tension side string insulators of 500kV lines, as attached figure 1 As shown, it includes the clamp on the cross-arm side, the clamp on the wire side, and two sets of contraction assemblies whose two ends are respectively hinged to the two ends of the clamp on the cross-arm side and the clamp on the wire side. The clamp on the cross-arm side is a split type. It consists of two separate splints with symmetrical cavities. The cavity of the fixture on the cross-arm side matches the hanging point of the hardware on the cross-arm side. The shrinkage assembly is composed of a double-ended screw and an insulating tie rod. During operation, the two splints of the fixture on the cross-arm side are clamped successively on the hanging point of the hardware on the cross-arm side, and...

Claims

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