Overhauling protective frame for GW4 type isolating switch and using method thereof

Abstract

The invention discloses an overhauling protective frame for a GW4 type isolating switch and a using method of the overhauling protective frame. The overhauling protective frame comprises an overhauling platform arranged between two pieces of channel steel of the isolating switch, a locking device used for fixing the overhauling platform and a hanging buckle device used for fixing a safety belt. The maintenance platform is fixed on the channel steel of the isolation switch through the locking device, the dead weight is too small, the cost is low, and the carrying is convenient; the fastening mode that an n-shaped support is matched with clamping plates is adopted in the vertical direction, the anti-pressure capacity is effectively improved, the tilting deformation is not likely to happen, and the safety is higher; compression springs are adopted in the horizontal direction to drive the clamping plates to achieve the clamping effect, and compared with the prior art, the operation is easy, and the mounting and dismounting can be faster and more convenient; the overhauling protective frame is convenient to install and carry, can be quickly clamped and fixed on the channel steel of theGW4 type disconnecting switch, the safe fixing of the safety belt is achieved through the hanging buckle device, a better effect of instant installation and instant use can be achieved, convenience isbrought to the work of an electric power maintainer, and the safety protection of the electric power maintainer is also strengthened.

Description

technical field [0001] The invention relates to the technical field of electric power maintenance, in particular to a maintenance protection frame for a GW4 type isolating switch and a method for using the same. Background technique [0002] Isolation switch is one of the most used electrical appliances in high-voltage switching appliances. As the name implies, it plays an isolation role in the circuit. Its working principle and structure are relatively simple, but due to the large amount of use and high requirements for work reliability, it has a great impact on the design, establishment and safe operation of substations and power plants. Among the various isolation switch products with different voltage levels, especially in the equipment with voltage levels of 110kV and below, the GW4 isolation switch occupies a large market share. [0003] In the daily maintenance of the 110kVGW4 isolating switch, ladders, scaffolding or old-fashioned maintenance protective brackets are...

AI Technical Summary

Problems solved by technology

[0004] Adopting the method of "climbing with a ladder, with special personnel to guard", although it complies with the provisions of the "Safety Regulations", it has the following disadvantages: ① Since there is no special facility for the seat belt buckle, if the seat belt is hung on the isolating switch frame On the beam, it does not conform to the principle of "high hanging low use"; ②The erection of ladders often affects the opening and closing operation of the disconnector; ③During the maintenance process, it is necessary to move the ladder many times, and the construction personnel go up and down the ladder many times, which affects the efficiency of maintenance work;

[0005] Although the use of scaffolding complies with the provisions of the "Safety Regulations" and is convenient for maintenance personnel to overhaul the isolating switch on the platform, it has the following disadvantages: ① There is no special facility for the seat belt buckle position; ② During the maintenance process, multiple times are required Mobile maintenance scaffolding, construction workers go up and down the platform many times, which affects the efficiency of maintenance work; ③Scaffolding takes up a lot of space, is heavy, difficult to transport, and complex on-site assembly;

[0006] The old-fashioned maintenance protection bracket is adopted, although it conforms to the principle of "high hanging and low use" of the safety belt, and is easy to carry, but the protection bracket has no maintenance platform, which is not convenient for maintenance personnel to move on the knife switch, is not conducive to placing tools and equipment, and affects work efficiency

[0007] The authorized announcement number is the Chinese patent of CN 204793776 U and the authorized announcement number is the Chinese patent of CN 207117018U, although they all disclose a kind of platform that can realize the buckle safety belt and facilitate construction workers to move, but there are following problems: the former needs at least The fastening effect of up, down, left, and right can only be realized by four times of screwing. The installation process is cumbersome, and the up and down fastening only through the bolt is too thin, prone to warping and deformation, and the safety is not high; the latter is fixed up and down, which is equivalent to two The disassembly and assembly of the maintenance platform is not only troublesome to install, but also the weight is too large, which is not conducive to transportation

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