CN201985284U - Low-voltage tapping box cable grounding device - Google Patents

Abstract

A low-voltage tapping box cable grounding device belongs to the electric field. Aiming to solve the problem that the low-voltage tapping box in city network has narrow space and complicate power points, and meet requirements of Electrical Safety Rules, the utility model discloses a grounding device formed by four insulating flexible wires with electric clippers at the head ends, wherein one flexible wire is an electric wire and the rest three are three-phase connecting wires; the tail ends of the four insulating flexible wires are electrically connected with a busbar; and the electric clippers of the three-phase connecting wires are arc-shaped, and are in the colors of yellow, green, and red, respectively. By adopting the grounding device, wiring exposure is avoided, no potential safety hazard is left, the use is convenient, and the grounding time is shortened, that is the power cut time is shortened.

Description

A low-voltage distribution box cable grounding device

technical field

The utility model relates to a cable grounding device for a low-voltage distribution box, which belongs to the electrical field.

Background technique

As there are more and more low-voltage cable distribution boxes in the urban network, when working in low-voltage distribution boxes, due to the small space and cable lines, the power point of the community is more complicated, and the safety regulations stipulate that grounding wires should be connected on both sides of the work place. Therefore, in order to ensure the life safety of the staff, people are eager to trial-produce a small grounding device for protection.

Contents of the invention

Aiming at the characteristics of the structure form and installation method of the low-voltage cable distribution box, the utility model provides a cable grounding device for the low-voltage cable distribution box.

In order to achieve the above purpose, the technical solution of the utility model is that the device is composed of four insulated flexible wires with electric clips at the head end, one of which is a connecting wire, and the other three are three-connected wires. The four insulated flexible wires The tail ends are electrically connected together, and the electric clips of the three-phase connection are arc-shaped.

The beneficial effects of the utility model are as follows: 1. Easy to use, safe and reliable, reasonable structure, and low cost; 2. Avoiding wiring exposure and leaving no potential safety hazard; 3. Due to the shortened time for installing the ground wire, the power failure time is reduced , the amount of power supply increases accordingly, which improves the economic benefits of the power supply department.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of the utility model.

Fig. 2 is a schematic diagram of the clamping nut of the electric clamp of the present invention.

In the attached drawings, 1. Ground wire, 2-A, 2-B, 2-C. Three-phase connection, 3. Bus bar, 4. Nut 5. Electric clamp.

Detailed ways

Referring to accompanying drawing 1, the utility model is connected to the bus bar 3 by the multi-strand transparent flexible wire connected with the four electric clips that the utility model is protected by the insulation sealing sheath, in order to distinguish the three-connected wiring 2-A, 2-B, 2 conveniently -C, in this embodiment, the colors of the three-phase connections 2-A, 2-B, and 2-C are yellow, green, and red, respectively.

Before the maintenance of the low-voltage cable distribution box, in order to avoid the sudden call of the maintenance part and endanger the safety of the person and the equipment, first connect the clamp of the grounding wire of the device to the grounding network of the work site, and then connect the clamps of the three-connected wire 5 They are respectively connected to the three-phase connection nuts 4 at the lower end of the circuit breaker of the low-voltage cable distribution box. Since the electric clip 5 is arc-shaped to wrap the screws 4, the contact area is increased. When removing the grounding device, the sequence is just the opposite.

In addition to the above-mentioned embodiments, the utility model can also have other implementations. All technical solutions in the form of equivalent replacement or equivalent transformation fall within the scope of protection required by the utility model.

Claims (3)

1. low pressure distribution box cable grounding device, it is characterized in that this device is made up of the insulated flexible cord of four charged folders of head end, wherein, one for connect wires, its excess-three root is the three-phase connecting line, described four tail ends that thoroughly do away with the edge flexible cord are electrically connected, and the electricity folder of three-phase connecting line is curved.

2. low pressure distribution box cable grounding device as claimed in claim 1 is characterized in that four tail ends that thoroughly do away with the edge flexible cord are connected electrically on the busbar.

3. low pressure distribution box cable grounding device as claimed in claim 1 is characterized in that the color of three-phase connecting line is respectively yellow, green, red.

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