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Isolation device for low-voltage switch

A technology of isolating devices and low-voltage switches, which is applied in the direction of guards/shutters to prevent contact with contacts, can solve problems such as grounding wires easily accidentally touching live switches next to them, and achieve the effect of avoiding electric shock casualties and improving safety

Pending Publication Date: 2020-02-21
GUANGDONG POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned problem in the prior art that the grounding wire of the contact under the low-voltage switch in a power failure is likely to touch the live switch next to it by mistake, the present invention provides an isolating device for a low-voltage switch, which can isolate the live low-voltage switch. no false touches

Method used

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  • Isolation device for low-voltage switch
  • Isolation device for low-voltage switch
  • Isolation device for low-voltage switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] like Figure 1-3 Shown is an embodiment of an isolation device for a low-voltage switch, including a shielding part 1 and a fixing part 2 connected to the shielding part 1; the shielding part 1 includes a panel 3 and side plates 4 arranged on both sides of the panel 3, and the fixing part 2 is connected to the panel 3; the fixing part 2 is a spring clip, and the two clips 201 of the spring clip are provided with fixing columns 202; the fixing columns 202 face the extending direction of the side panel 4.

[0025] like image 3 As shown, the hinge of the spring clip is provided with a fastening installation connected to the panel 3 . The fastening parts are bolts 203 and nuts 204, and the bolts 203 pass through the hinges of the spring clips and extend outwards. When fixing the spring clip and the panel 3 , the bolt 203 passes through the panel, and then is fixed with the panel 3 by the nut 204 .

[0026] like figure 2 As shown, the panel 3 includes a first panel 301...

Embodiment 2

[0034] like Figure 4 As shown, the difference between this embodiment and the embodiment is that a mounting plate 305 is provided on the top of the first panel 301 , and the bolts 203 and nuts 204 are fixed to the mounting plate 305 . The spring clip passes through the mounting plate 305 to fix the first panel 301 , so that the first panel 301 is fixed on the low voltage switch, and then the second panel 302 is fixed.

[0035] Also, the side panel 4 is connected to the panel 3 through the hinge 306, and the side panel 4 can be folded, which is convenient for storage when not in use.

[0036] The remaining technical features and working principles of this embodiment are consistent with those of Embodiment 1.

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PUM

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Abstract

The invention relates to an isolation device for a low-voltage switch. The isolation device includes a shielding part and a fixing part connected with the shielding part. The shielding part includes apanel and side plates arranged on both sides of the panel. The fixing part is connected with the panel. The fixing part is a spring clip. Two clamping heads of the spring clip are provided with fixing posts. The live low-voltage switch is isolated through the isolation device. When the staff is working on the ground wire of the low-voltage switch during outage, the staff is prevented from accidentally touching the live low-voltage switch. Electric shock injuries are avoided. The operation safety is improved.

Description

technical field [0001] The invention relates to the field of electric engineering tools, and more specifically, to an isolating device for a low-voltage switch. Background technique [0002] Electricity safety work rules: When the line is powered off, grounding wires should be installed in all sections of the work area and branch lines that may send power to the work area. However, there are the following problems in the power failure operation of distribution transformer branch lines: [0003] The branch line low-voltage switches in the low-voltage distribution box of the distribution transformer bench are all installed side by side, and the distance between the switches is very close, resulting in the distance between the exposed live parts of the contacts under the switch is only 5 to 8 cm. When one of the branch line switches fails to work, and a grounding wire is installed on the lower contact of the low-voltage switch of the power failure, the operator and the groundi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B1/14
CPCH02B1/14
Inventor 温伟建邓建荣方俊邦王旭帆罗文杰冯超品陆理强何景良冯惠梅任剑辉李庆辉李君贤
Owner GUANGDONG POWER GRID CO LTD