CN203895633U - Short circuit grounding wire suitable for box transformer substation and electricity distribution room - Google Patents

Abstract

The utility model relates to a short-circuit grounding wire suitable for box transformers and power distribution rooms, which includes four insulating operating rods, grounding wires and clamp-shaped grounding clips, and each insulating operating rod is composed of a handle, an insulating rod body and a plug-in type clamp , the plug-in clamp is fixed on the upper end of the insulating rod, the lower end of the insulating rod is provided with a handle, the plug-in clamp and the pincer grounding clamp are equipped with hexagonal bolts, and the hexagonal bolts of each plug-in clamp are fixed on the corresponding One end of the grounding wire and the other end of each grounding wire are connected together to form a general wire and fixed on the hexagonal bolt of the pincer grounding clamp. The structure of the short-circuit grounding wire is reasonable, and the connection and disassembly of the whole group of short-circuiting grounding wires is very convenient, which greatly improves the work efficiency, and the use method of the grounding wire is scientific, correct and safe, which can effectively ensure the safety of the on-site workers and eliminate the possibility of downtime. Potential safety hazards such as power transmission and wrong power transmission have eliminated violations of regulations caused by irregular installation of grounding wires, thereby avoiding accidents.

Description

Short-circuit ground wire suitable for box transformer and power distribution room

technical field

The utility model relates to a short-circuit grounding wire suitable for box transformers and power distribution rooms, which is suitable for short-circuit grounding of box transformers and power distribution rooms in the power industry.

Background technique

The technical measures to ensure safety in the "Electric Power Safety Work Regulations (Line Part)" in the electric power industry require power outages, power inspections, and installation of grounding wires; while the existing power line grounding wires are mainly used for three-phase short-circuit and grounding of overhead lines. For meter installation and power connection, fault maintenance, etc. in the metering cabinet of the box-type transformer and power distribution room, since there are no bare wires or grounding rings in the power distribution equipment, the rectangular busbar in the cabinet can only be used for grounding. Conventional grounding wires cannot be hooked to rectangular busbars; in addition, the concrete floor of the box transformer and power distribution room makes the grounding electrodes of conventional grounding wires unusable.

Utility model content

According to the deficiencies in the prior art above, the technical problem to be solved by the utility model is: to provide a box-type substation with reasonable structure, convenient connection and dismantling, improved work efficiency, reliable connection and the safety of on-site workers. and the short-circuit ground wire of the power distribution room.

The short-circuit grounding wire suitable for box transformers and power distribution rooms described in the utility model includes 4 insulating operating rods, grounding wires and clamp-shaped grounding clips, and each insulating operating rod consists of a handle, an insulating rod body and a plug-in type clamp The plug-in wire clamp is fixed on the upper end of the insulating rod body, the lower end of the insulating rod body is provided with a handle, the plug-in type wire clamp and the pincer grounding clamp are equipped with hexagonal bolts, and the hexagonal bolts of each plug-in type wire clamp are fixed on the corresponding One end of the corresponding grounding wire and the other end of each grounding wire are connected together to form a general wire and fixed on the hexagonal bolt of the pincer grounding clamp.

The ground wire includes a transparent sheath and several annealed copper wires, and the transparent sheath is sheathed outside the several annealed copper wires.

One end of the ground wire is equipped with a copper lug and is fixed on the hexagonal bolt of the plug-in clamp through the copper lug, and the end of the main wire is equipped with a copper lug and is fixed in the clamp through the copper lug. on the hex bolt of the ground clip. The copper wire lug can realize the quick connection of the grounding wire, the main wire and the plug-in type wire clip and the pincer type grounding clip.

When using the short-circuit grounding wire, hold the insulated operating lever, and directly insert the plug-in clamp on the rectangular busbar in the box transformer and the metering cabinet in the power distribution room. The grounding end is directly clamped on the metering Just connect the ground wire in the cabinet or the screw that fixes the ground wire. In the process of hanging and removing the short-circuit grounding wire, operations such as loosening and tightening screws are avoided, the operation is convenient, and reliable connection can be ensured, which improves work efficiency and ensures work safety. It is suitable for working in box transformers and power distribution rooms short-circuit grounding requirements.

Compared with the prior art, the utility model has the following beneficial effects:

The structure of the short-circuit grounding wire is reasonable, and the connection and disassembly of the whole group of short-circuiting grounding wires is very convenient, which greatly improves the work efficiency, and the use method of the grounding wire is scientific, correct and safe, which can effectively ensure the safety of the on-site workers and eliminate the possibility of downtime. Potential safety hazards such as power transmission and wrong power transmission have eliminated violations of regulations caused by irregular installation of grounding wires, thereby avoiding accidents.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1. Plug-in clamp; 2. Hexagonal bolt; 3. Ground wire; 4. Insulation rod body; 5. Handle; 6. Clamp ground clamp; 7. Main wire.

Detailed ways

Embodiments of the utility model are further described below in conjunction with the accompanying drawings:

As shown in Figure 1, the short-circuit grounding wire includes 4 insulating operating rods, grounding wire 3 and clamp-shaped grounding clip 6, and each insulating operating rod is composed of a handle 5, an insulating rod body 4 and a plug-in clamp 1. Type line clamp 1 is fixed on the upper end of the insulating rod body 4, the lower end of the insulating rod body 4 is provided with a handle 5, the plug-in type line clamp 1 and the pincer grounding clamp 6 are provided with hexagonal bolts 2, and the hexagonal bolts of each plug-in type line clamp 1 One end of the corresponding grounding wire 3 is fixed on the 2, and the other end of each grounding wire 3 is connected into a general wire 7 and fixed on the hexagonal bolt 2 of the pincer grounding clamp 6.

Among them: the grounding wire 3 includes a transparent sheath and several soft copper wires, and the transparent sheath is covered outside the several soft copper wires; one end of the grounding wire 3 is equipped with a copper wire lug and is fixed on the plug-in type through the copper wire lug. On the hexagonal bolt 2 of the clamp 1, the end of the main wire 7 is equipped with a copper wire lug and fixed on the hexagonal bolt 2 of the clamp-shaped grounding clamp 6 through the copper lug. The quick connection of the wire 7 and the plug-in clamp 1 and the pincer ground clamp 6. In this embodiment, the length of the insulating rod body 4 is not less than 0.7m, and the cross-sectional area of the grounding wire 3 is not less than 25mm ² .

When using the short-circuit grounding wire, hold the insulating operating lever and directly insert the plug-in clamp 1 on the rectangular busbar in the box transformer and the metering cabinet in the power distribution room. On the grounding wire in the metering cabinet or on the screw that fixes the grounding wire.

The structure of the short-circuit grounding wire is reasonable. In the process of hanging and removing the short-circuit grounding wire, operations such as loosening and tightening screws are avoided. The use method of the wire is scientific, correct and safe, which can effectively guarantee the safety of the on-site staff, eliminate safety hazards such as reverse power transmission and wrong power transmission, and prevent violations caused by irregular grounding wire installation, thereby avoiding accidents. It is suitable for short-circuit grounding requirements when working in box transformers and power distribution rooms.

Claims (3)

1. one kind is applicable to that case becomes and the short-circuit grounding wire of switchgear house, it is characterized in that: comprise 4 insulating bars, earth lead (3) and pincerlike earth clip (6), every insulating bar is by handle (5), the insulation body of rod (4) and plug-in type wire clamp (1) form, plug-in type wire clamp (1) is fixed on the upper end of the insulation body of rod (4), the insulation body of rod (4) lower end arranges handle (5), on plug-in type wire clamp (1) and pincerlike earth clip (6), hex bolts (2) is all set, one end of the upper fixing earth lead (3) corresponding thereto of hex bolts (2) of each plug-in type wire clamp (1), the other end of each earth lead (3) is also connected into one total wire (7) and is fixed on the hex bolts (2) of pincerlike earth clip (6).

2. the short-circuit grounding wire that is applicable to case change and switchgear house according to claim 1, is characterized in that: described earth lead (3) comprises transparent sheath and several strands of annealed copper wires, and transparent sheath is enclosed within several bursts of annealed copper wire outsides.

3. be according to claim 1 and 2ly applicable to that case becomes and the short-circuit grounding wire of switchgear house, it is characterized in that: one end of described earth lead (3) is equipped with copper line nose and by copper line nose, is fixed on the hex bolts (2) of plug-in type wire clamp (1), and total wire (7) end is equipped with copper line nose and by copper line nose, is fixed on the hex bolts (2) of pincerlike earth clip (6).