CN203351783U - A multi-head complete grounding wire - Google Patents

Abstract

The utility model discloses a multi-head complete grounding wire, which belongs to parts for power supply or power distribution. The utility model comprises an insulated junction box and more than two ground wires drawn out from the junction box; more than two outlet holes are arranged on the side wall of the junction box; one end of each ground wire is placed in the junction box The two ends are electrically connected to each other, and the other end is connected to the equipment or an absolutely safe ground wire after going through the outlet hole. In the utility model, each grounding wire is arranged in parallel, and the principle that the total resistance becomes smaller after the resistance is connected in parallel greatly reduces the total resistance value of the equipment grounding wire, and has the advantages of low cost, simple use and convenience; after using the utility model, The on-site grounding wiring is simple and clear, and it is convenient to find missing contacts, which eliminates the chaotic situation of on-site wiring; now many complete sets of equipment are used in the test, so the utility model has a great promotion prospect.

Description

Multiple sets of grounding wires

technical field

The utility model belongs to parts for power supply or power distribution.

Background technique

During the electric power test, each small device in the complete set of equipment used needs to be grounded, and usually one small device uses a grounding wire. Due to the large number of devices, there are also a large number of grounding wires, which can easily cause confusion in the wiring of the grounding wires on site. It is easy to be found, and it is easy to cause inaccurate test results or other electrical accidents.

Utility model content

The technical problem to be solved by the utility model is to provide a multi-head complete grounding wire with simple structure, convenient use and low cost.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a multi-head complete set of grounding wires, including an insulated junction box and more than two grounding wires drawn from the junction box; the side wall of the junction box There are more than two outlet holes; one end of each ground wire is electrically connected to each other in the junction box, and the other end is connected to the equipment or an absolutely safe ground wire after passing through the outlet hole.

The junction box is a hollow cylindrical cavity, and the outlet hole on the side wall of the cylindrical cavity is circular.

The number of the outlet holes is equal to the number of the grounding wires and evenly distributed on the side wall of the junction box.

Each ground wire is composed of plastic-encapsulated annealed copper wire.

The open end of each grounding wire is provided with a clamp for grounding or connecting to equipment.

The technical progress obtained by adopting the above technical solution is: in the utility model, each grounding wire is arranged in parallel, and the principle that the total resistance becomes smaller after the resistance is connected in parallel greatly reduces the total resistance value of the equipment grounding wire, and has the advantages of low cost, simple use, Advantages of convenience; after using the utility model, the on-site grounding wiring is simple and clear, and it is easy to find missing contacts, eliminating the chaotic situation of on-site wiring; now more complete sets of equipment are used in the test, so the utility model has a great promotion prospect.

Description of drawings

Shown in Fig. 1 is the structural representation of the utility model;

Among them, 1. Grounding wire, 2. Junction box, 3. Outlet hole, 4. Wire clamp.

Detailed ways

As can be seen from Figure 1, the multi-head complete set of grounding wires includes an insulated junction box 2 and four grounding wires 1 drawn from the junction box 2; the side wall of the junction box 2 is provided with four evenly distributed Outlet hole 3; one end of each ground wire 1 is electrically connected to each other in the junction box 2, and the other end is connected to the equipment that needs to be grounded or an absolutely safe ground wire after passing through the outlet hole 3.

The junction box 2 is a hollow cylindrical cavity, and the outlet hole 3 on the side wall of the cylindrical cavity is circular.

Each ground wire 1 is composed of plastic-encapsulated annealed copper wire.

The open end of each ground wire 1 is provided with a clamp 4 for grounding or connecting to equipment.

The method of use of the utility model is as follows: first select an absolutely safe ground wire, and connect one of the ground wires 1 to the ground wire through the clamp 4; then, according to the position of the test equipment, select a suitable ground wire 1 for connection. Since one end of each grounding wire 1 is electrically connected to each other, and one of them is connected to an absolutely safe ground, it is equivalent to that all the grounding wires 1 are connected to an absolutely safe ground. Similarly, That is to say, the test equipment is connected to a safe ground.

In the present utility model, the quantity of the grounding wire 1 should be selected according to the quantity of the equipment to be grounded. The number of outlet holes 3 on the junction box 2 is generally consistent with the number of grounding wires 1 .

The outlet holes 3 can be distributed uniformly or non-uniformly on the side wall of the junction box 2 . The shape of the junction box 2 can be circular, rectangular, hexagonal, etc.

One end of each grounding wire 1 is electrically connected in the junction box 2, and the ends can be directly connected, or the ends of each grounding wire 1 can be welded at one point. In this case, it is necessary to install A base is used to solder these terminals; terminals can also be provided on the base, and each terminal is connected to the terminal.

The number of the outlet holes 3 can be equal to the number of the grounding wires 1, and of course it can also be greater than the number of the grounding wires 1, so as to facilitate the addition of the grounding wires 1 in the future. The shape of the outlet hole 3 should be the same as that of the cross-section of the ground wire 1, and the area should be slightly larger.

The open end of the grounding wire 1 is provided with a clamp 4 for easy connection. The size of wire clamp 4 can be selected according to actual conditions. Of course, in addition to the clamp 4, other connection forms can also be selected, such as direct connection through wires and the like.

After using the utility model, the grounding wires connected to each device are equivalent to parallel settings. It is known that the total resistance becomes smaller after the resistors are connected in parallel. Similarly, the parallel connection of each grounding wire is equivalent to greatly reducing the total resistance of the equipment grounding wires , In this way, the impact of the grounding wire on the operating conditions of the equipment is greatly reduced, and the accuracy of the test results is improved. The utility model has the advantages of simple structure, low cost, and very simple and convenient use; after using the utility model, the grounding wiring of the test field equipment becomes simple and clear, and it is also convenient to find missing contacts, eliminating the chaotic situation of the field wiring. Because there are many complete sets of equipment used in the test and many grounding wires are required, the utility model has a great promotion prospect. the

Claims (5)

1. the complete earth connection of bull, is characterized in that comprising the junction box (2) of insulation and the earth connection more than two (1) of being drawn by junction box (2); The sidewall of described junction box (2) is provided with two with Top Leading-out Hole (3); A wherein end of each earth connection (1) mutually is electrically connected in junction box (2), and the other end is connected with equipment or the ground wire that is perfectly safe after wire hole (3).

2. the complete earth connection of bull according to claim 1, is characterized in that the circular cylindrical cavity that described junction box (2) is a hollow, and the wire hole on the cylindrical cavity body sidewall (3) is circular.

3. the complete earth connection of bull according to claim 1 and 2, is characterized in that the quantity of described wire hole (3) equates and is evenly distributed on the sidewall of junction box (2) with the quantity of earth connection (1).

4. the complete earth connection of bull according to claim 1 and 2, is characterized in that each earth connection (1) moulds annealed copper wire by envelope and form.

5. the complete earth connection of bull according to claim 1 and 2, is characterized in that the wire clamp that open end is provided with ground connection or the equipment that connects is used (4) of each earth connection (1).

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