Maintenance tool special for dismounting and mounting double-bundle conductor clamp

Abstract

The invention discloses a maintenance tool special for dismounting and mounting a double-bundle conductor clamp, and belongs to the technical field of electric system power transformation. The maintenance tool comprises a clamping element, a force applying element and an insurance element and is characterized in that the clamping element is composed of a clamping plate I (1) and a clamping plate II (2), the clamping plate II (2) is connected to the L-shaped clamping plate I (1) through a square concave opening (10), a nut (4) is welded above the clamping plate I (1), a screw rod sleeve (3) is welded to the clamping plate II (2), a screw rod (5) penetrates through the nut (4) of the clamping plate I (1) to be connected with the interior of the screw rod sleeve (3) of the clamping plate II (2), a thread is arranged on the portion, connected with the interior of the screw rod sleeve (3), of the screw rod (5), anti-falling screws (7) are arranged on the two sides of the screw rod sleeve (3), and a safety pin and a safety belt are mounted in two through holes (9) in the back of the clamping plate I (1) respectively. According to the maintenance tool, the work efficiency of dismounting and mounting back the double-bundle conductor clamp can be improved, the labor intensity of a maintainer can be lowered, and human-machine ergonomics is optimized.

Description

Technical field [0001] The invention relates to the technical field of power system transformation, in particular to an overhaul tool for dismantling equipment and installing double-split wire clamps. Background technique [0002] In the power network, in order to meet the current carrying capacity of the line or reduce corona, split wires are often used to connect power equipment. At present, double-split conductors are widely used in high-current circuits or high-voltage substation equipment in various substations, and multi-split conductors (four-split, six-split conductors, etc.) are more commonly used in ultra-high-voltage overhead transmission lines, which are used in substation equipment. What is often encountered in maintenance work is the double split conductor. [0003] According to China Southern Power Grid Corporation’s "Power Equipment Preventive Test Regulations" (Q / CSG114002-2011) and Yunnan Power Grid Corporation’s "Equipment Condition Inspection and Pre-test Inspe...

AI Technical Summary

Problems solved by technology

Since the double-split wire clamp itself is connected to two wires (usually steel-cored aluminum stranded wire, aluminum alloy stranded wire), the current flowing through the wire is generally 240A-1440A, resulting in a very thick diameter of the wire and a large quality of the clamp. ; and the double-split conductor clamp is often far away from the busbar, and the sag is large, resulting in a large tensile force on the clamp. After dismantling and reinstalling the double-split conductor clamp on site many times, it is found that there are the following problems : 1. Since the double-split wire clamp has two thick wires, its mass is large. Calculated at 0.9222kg / m, then the 8m-long double-split wire and clamp will exceed 15KG. Calculated at 2.69kg / m, then the 8m long The double-split wire will reach 43KG, and the double-split wire clamp is subjected to the tension of the wire sag, which makes it very time-consuming and difficult to remove the last few bolts of the wire clamp and the first two bolts when reinstalling. Difficult to complete; 2. In the process of disassembling and assembling the double-split wire clamp, when the operator is working on the inclined high-voltage bushing and other equipment, because there is no reliable stepping point, and the space of the climbing vehicle and the aerial work platform is small, the operator is not careful. Will cause damage from falling from high altitude or being hit by equipment

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