Auxiliary device for secondary cable plugging

Abstract

The invention discloses an auxiliary device for secondary cable plugging. The auxiliary device comprises a panel, the panel is provided with one or more installation holes, the position of each installation hole is spirally coiled with a spiral coiling part, a secondary cable is coiled with the spiral coiling parts and coated with fireproofing mud, and the spiral coiling parts are wrapped by the fireproofing mud which is in sealing connection with the installation holes. By means of the auxiliary device for secondary cable plugging, the panel is installed at a plugging opening of a chassis panel, a cable in a chassis is firstly divided into a plurality of parts, then the multiple parts of the cable penetrate through the installation holes in the panel respectively, the positions of the installation holes outside the cable are spirally coiled with the spiral coiling parts, and the installation holes are sealed through the fireproofing mud. The spiral coiling parts spirally coiling the cable serve as supporting frameworks, in the process that the installation holes are coated with the fireproofing mud, the fireproofing mud is attached to the supporting frameworks, gaps between the cable and the installation holes can be filled with the supporting frameworks, fireproofing mud falling caused by the over-large gaps is avoided, the installation holes are easy to fill, efficiency is high, and quality is high.

Description

technical field [0001] The invention relates to the technical field of electrical equipment, in particular to an auxiliary device for secondary cable plugging. Background technique [0002] The sealing of the secondary cables in the substation often uses a composite board to cover the large hole, and one or more cables are inserted into the installation hole of the composite board. If there is a gap, if the gap is not blocked, it will cause, for example, small animals to enter the high-voltage field cabinet through the gap, and the water in the cabinet will become wet and slowly rust, and even cause a short circuit in the secondary circuit or The bad phenomenon of secondary circuit grounding will pose a serious threat to the safety of power grid operation. [0003] Therefore, usually, people use fireproof mud to fill between the cable and the installation hole and around the installation hole, but this method still has several shortcomings: [0004] 1. The gaps between mul...

AI Technical Summary

Problems solved by technology

[0004] 1. The gaps between multiple secondary cables are usually difficult to fill, and after a long time, there will be large gaps in the installation holes

[0005] 2. When the temperature is high in summer, the fireproof mud filled under the mechanism box often falls.

[0006] 3. In addition, when installing the secondary cable in the chassis panel, it is necessary to remove the fireproof mud. After the secondary cable is installed, it should be sealed with fireproof mud, which will reduce the sealing and airtightness of other fireproof mud laid on the panel, and even be damaged by other Cable extrusion results in extremely poor cable sealing effect

[0007] At present, although some high-level construction teams are blocking the split cables, the blocking effect is not bad, but after a long time, the fireproof mud on the bottom of the box body is easy to fall off

Some substations use glass glue to coat the surface of the fireproof mud to prevent the fireproof mud from falling off, but it is still difficult to solve the problem, and the glass glue and tape have a combustion-supporting effect, which does not meet the fire protection requirements

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