CN107748293A - Ground wire, test system and method - Google Patents

Abstract

The present invention provides a grounding wire, a testing system and a method, wherein the grounding wire includes: two grounding parts; the grounding part includes: a grounding wire and a connecting device; one end of the grounding wire is connected to the corresponding connecting device, and the other One end is used to connect with detection equipment or electrical equipment; the connection device is used to connect with grounding copper bar. The grounding wire, testing system and method provided by the present invention can ensure the safety of the electrical equipment when the grounding wire is connected to the electrical equipment, and when the grounding wire is connected to the testing equipment, the two grounding wires can directly connect The input terminal is connected to realize resistance measurement, which effectively reduces the detection difficulty and improves the detection efficiency.

Description

Ground wire, test system and method

technical field

The invention belongs to the field of electronic technology, and more specifically relates to a grounding wire, a testing system and a method.

Background technique

In electrical work, most electrical equipment will require the installation of grounding wires. In order to ensure the normal operation of electrical equipment, there are certain requirements for the resistance of the grounding wire. In field work, if the resistance of the grounding wire is too large, rectification is required.

FIG. 1 is a schematic structural diagram of a ground wire in the prior art. As shown in FIG. 1 , the ground wire includes a ground wire 1 and an alligator clip 2 connected to the ground wire 1 . The grounding wire 1 is connected to the electrical equipment 3, and the crocodile mouth clip 2 is connected to the grounding copper bar 4 to realize the connection between the electrical equipment 3 and the grounding copper bar 4, and to protect the electrical equipment 3.

The disadvantage of the existing technology is that the grounding wire is often laid for a long time, and it is difficult to measure its resistance with traditional testing equipment such as a multimeter, which makes it difficult to detect the resistance of the grounding wire and the detection efficiency is low.

Contents of the invention

The invention provides a grounding wire, a testing system and a method, which are used to solve the technical problems in the prior art that it is difficult to detect the resistance of the grounding wire and the detection efficiency is low.

An embodiment of the present invention provides a grounding wire, including: two grounding components;

The grounding component includes: a grounding wire and a connecting device;

One end of the ground wire is connected to the corresponding connection device, and the other end is used to connect to the detection equipment or electrical equipment;

The connecting device is used for connecting with the grounding copper bar.

Further, the ground wire also includes: an outer sheath;

The outer sheath wraps the two grounding wires into one wire;

The two ground wires are equal in length.

Further, the ground wire also includes: an insulating connector;

The connection between the two connecting devices is realized through the insulating connecting piece;

The connecting device is a crocodile mouth clip, and the insulating connecting piece is a handle with an insulating sheet.

An embodiment of the present invention also provides a grounding wire testing system, including: detection equipment and the grounding wire described in any one of the above;

The detection device is used to detect the resistance value information of the ground wire.

Further, the detection equipment includes: a current detection device, a voltage detection device and a power supply device;

One end of the power supply device is connected to a grounding wire, and the other end is connected to another grounding wire;

The current detection device is used to detect the current information flowing through the ground wire;

The voltage detection device is used to detect the voltage information output by the power supply device.

Further, the current detection device is an ammeter, and the voltage detection device is a voltmeter.

Further, the ground wire testing system also includes: a controller and a pushing device;

The current detection device is connected to the controller, and is used to send the detected current information to the controller;

The voltage detection device is connected to the controller, and is used to send the detected voltage information to the controller;

The controller is connected to the pushing device, and is used to determine the resistance information of the ground wire according to the received voltage information and current information, and send the resistance information to the pushing device;

The pushing device includes a display device and/or a loudspeaker for displaying and/or playing the resistance value information.

The embodiment of the present invention also provides a test method, comprising:

Accept the voltage information sent by the voltage detection device;

Receive current information sent by the current detection device;

determining the resistance value information of the ground wire according to the voltage information and the current information;

Sending the resistance value information to a push device, so that the push device pushes the resistance value information to the user.

Further, determining the resistance information of the ground wire according to the voltage information and the current information includes:

determining the test resistance information of the ground wire according to the voltage information and the current information;

calculating the actual resistance information of the ground wire according to the test resistance information of the ground wire;

Correspondingly, sending the resistance value information to the push device, so that the push device pushes the resistance value information to the user, including:

Sending the actual resistance value information to the push device, so that the push device pushes the actual resistance value information to the user;

Wherein, the test resistance value information is the resistance value information when the ground wire is connected to the test equipment, and the actual resistance value information is the resistance value information when the ground wire is connected to the electrical equipment.

Further, according to the test resistance information of the ground wire, calculating the actual resistance information of the ground wire includes:

Obtain the corresponding relationship between the test resistance value information and the actual resistance value information;

According to the corresponding relationship and the measured resistance information of the ground wire, the corresponding actual resistance information of the ground wire is determined.

Compared with the prior art, the embodiment of the present invention has the following beneficial effects: the grounding wire, testing system and method provided by the present invention include two grounding parts, each of which includes a grounding wire and a connecting device, the One end of the grounding wire is connected to the corresponding connecting device, and the other end is used to connect to the testing equipment or electrical equipment. The connecting device is used to connect to the grounding copper bar. When the grounding wire is connected to the electrical equipment, it can ensure that the electrical equipment When the grounding wire is connected to the testing equipment, the two grounding wires can be directly connected to the two input terminals of the testing equipment, so as to realize the resistance measurement, which effectively reduces the detection difficulty and improves the detection efficiency.

Description of drawings

FIG. 1 is a schematic structural diagram of a ground wire in the prior art;

FIG. 2 is a schematic structural diagram of a ground wire provided in Embodiment 1 of the present invention;

3 is a schematic structural diagram of a ground wire testing system provided in Embodiment 2 of the present invention;

FIG. 4 is a structural block diagram of the detection equipment in the ground wire testing system provided by Embodiment 3 of the present invention;

FIG. 5 is a flow chart of the testing method provided by Embodiment 4 of the present invention.

Reference signs:

1- Ground wire 2- Alligator mouth clip 3- Electrical equipment 4- Ground copper bar 5- Connection device 6- handle 7-Insulation sheet 8- Current detection device 9- Voltage detection device 10-Power supply unit 11-Controller 12-Push device

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

Embodiment one

Embodiment 1 of the present invention provides a ground wire. FIG. 2 is a schematic structural diagram of a ground wire provided by Embodiment 1 of the present invention. As shown in Figure 2, the grounding wire in this embodiment may include: two grounding parts; the grounding parts include: a grounding wire 1 and a connecting device 5; one end of the grounding wire 1 is connected to the corresponding connecting device 5 , the other end is used to connect with detection equipment or electrical equipment 3; the connection device 5 is used to connect with grounding copper bar 4.

In this embodiment, the grounding wire may be composed of two groups of grounding components insulated from each other. Each grounding part includes a grounding wire 1 and a connecting device 5 .

The connecting device 5 can be a crocodile mouth clip, which is directly clamped on the grounding copper bar 4 during use, or the connecting device 5 can also be any other device that can realize the connection between the grounding wire 1 and the grounding copper bar 4. An electrical connection device, such as a clamping component, a welding component, etc., is connected to the grounding copper bar 4 by clamping, welding or the like.

Preferably, the connecting wires may also include insulating connectors. The two connecting devices 5 can be fixed together by an insulating connecting piece, and the insulating connecting piece can be a handle 6 with an insulating sheet 7, so as to realize the insulating connection between the two connecting devices 5 and ensure the grounding wire Test security.

Preferably, the connecting wire may also include an outer sheath. The outer sheath can wrap two grounding wires 1 into one wire, which is convenient for carrying and installation of the grounding wire.

Furthermore, the lengths of the two ground wires 1 can be equal, which is more convenient for connecting the electrical equipment 3 or testing equipment, and improving the efficiency of installation or testing.

In practical applications, when the resistance value of the ground wire needs to be measured, the two ground wires 1 can be connected to the detection equipment. For example, the detection device can be a multimeter, one end of the multimeter can be connected to a ground wire 1, and the other end can be connected to another ground wire 1 to realize resistance measurement. By measuring the resistance value of the grounding wire after installation, the reliability of the electrical equipment 3 in use can be guaranteed, and the safety of users can be guaranteed, which has broad promotion prospects.

After the test resistance value is qualified, if you need to connect the electrical equipment 3, you can short-circuit the two grounding wires 1 and connect them to the corresponding components such as the plug or interface of the electrical equipment 3 to protect the electrical equipment 3 .

Those skilled in the art can understand that the resistance value of the grounding wire during testing may be different from the resistance value when it is connected to the electrical equipment 3. The actual resistance value is inconsistent. The staff conducting the test can estimate the actual resistance value based on the test resistance value, for example, the resistance value of series-to-parallel connection will be reduced to 1/4. Alternatively, a passing standard for the test resistance can be established, and if the test resistance is qualified, the grounding wire can also be directly put into use.

The grounding wire provided in this embodiment includes two grounding parts, each of which includes a grounding wire 1 and a connecting device 5, one end of the grounding wire 1 is connected to the corresponding connecting device 5, and the other end is used to connect with the corresponding connecting device 5. The detection equipment or the electrical equipment 3 is connected, and the connection device 5 is used to connect with the grounding copper bar 4. When the ground wire is connected to the electrical equipment 3, the safety of the electrical equipment 3 can be guaranteed, and the ground wire is connected to the detection equipment. , the two ground wires 1 can be directly connected to the two input terminals of the detection device, thereby realizing resistance measurement, effectively reducing the detection difficulty and improving the detection efficiency.

Embodiment two

Embodiment 2 of the present invention provides a ground wire testing system, including detection equipment and the ground wire described in any one of the above embodiments.

The detection device is used to detect the resistance information of the ground wire. The structures and functions of the components in the ground wire are similar to those in Embodiment 1, and will not be repeated here.

FIG. 3 is a schematic structural diagram of a ground wire testing system provided by Embodiment 2 of the present invention. As shown in FIG. 3 , the detection device may include: a current detection device 8 , a voltage detection device 9 and a power supply device 10 .

One end of the power supply device 10 is connected to a ground wire 1, and the other end can be connected to another ground wire 1 through a current detection device 8; the current detection device 8 is used to detect the current information flowing through the ground wire 1; The voltage detection device 9 is used to detect the voltage information output by the power supply device 10 .

The current detection device 8 and the voltage detection device 9 may be an ammeter and a voltmeter respectively, for the user to determine the resistance information of the ground wire according to the readings of the voltmeter and the ammeter.

Further, the ammeter may be a microampere ammeter with high detection accuracy. The power supply device 10 can be a fixed battery, which outputs a DC voltage and has high safety.

The grounding wire testing system provided in this embodiment uses the current-voltage method to measure the resistance of the grounding wire, and the testing method is simple and fast; the microampere meter is used for current measurement, and the measurement accuracy is high; a fixed battery is used to output DC voltage, which has high safety , will not pose a danger.

Embodiment Three

Embodiment 3 of the present invention provides a ground wire testing system. This embodiment is based on the technical solution provided by the second embodiment, adding a controller 11 and a pushing device 12 to the detection equipment.

FIG. 4 is a structural block diagram of the detection equipment in the ground wire testing system provided by Embodiment 3 of the present invention. As shown in FIG. 4 , the detection device in this embodiment may include: a current detection device 8 , a voltage detection device 9 , a controller 11 , a pushing device 12 and a power supply device (not shown in the figure).

The current detection device 8 and the voltage detection device 9 in this embodiment may be current detection devices and voltage detection devices capable of communicating with the controller 11, such as current sensors, voltage sensors and the like.

The current detection device 8 is connected with the controller 11 for sending the detected current information to the controller 11; the voltage detection device 9 is connected with the controller 11 for sending the detected current information to the controller 11; The voltage information is sent to the controller 11; the controller 11 is connected with the pushing device 12, and is used to determine the resistance information of the ground wire according to the received voltage information and current information, and send the resistance information to the The push device 12; the push device 12 includes a display device and/or a speaker for displaying or playing the resistance value information to the user, for example, can display or play "the resistance value is xx ohms".

In this embodiment, the resistance value information pushed by the push device 12 to the user may be test resistance value information or actual resistance value information. The test resistance information is resistance information when the ground wire is connected to testing equipment, and the actual resistance information is resistance information when the ground wire is connected to electrical equipment.

Preferably, the method for the controller 11 to determine the resistance information of the ground wire according to the voltage information and the current information may include: determining the test resistance information of the ground wire according to the voltage information and the current information ; Calculate the actual resistance information of the ground wire according to the test resistance information of the ground wire.

Correspondingly, the pushing device 12 pushes the resistance value information to the user, which may be specifically: the pushing device 12 pushes the actual resistance value information to the user.

According to the measured resistance information of the ground wire, the actual resistance information of the ground wire can be calculated in many ways, and this embodiment provides the following two methods.

Method 1: Determine the actual resistance value information according to the connection relationship during testing and the connection relationship during actual use.

For example, when testing, connect with testing equipment and connect two grounding wires in series; in actual use, connect with electrical equipment and connect two grounding wires in parallel, then the actual resistance can be considered to be 1/4 of the tested resistance. If the test resistance information is determined to be 4 ohms according to the voltage information and current information, then the actual resistance value information is 1 ohm. The actual resistance value information is determined through the connection relationship, which is simple and convenient, and has high processing efficiency.

Method 2: Obtain the correspondence between the test resistance information and the actual resistance information; determine the corresponding actual resistance information of the ground wire according to the correspondence and the test resistance information of the ground wire.

Considering that the actual use is more complicated, the test resistance information and the actual resistance information may not have a simple linear relationship. Therefore, after obtaining the test resistance information, the actual resistance information can be determined by looking up the table.

The correspondence between the test resistance information and the actual resistance information can be obtained through previous big data analysis experiments and stored in the controller 11 in the form of a table, or the controller 11 can obtain the correspondence from the server. According to the corresponding relationship, the corresponding actual resistance value information can be calculated, and the accuracy is better.

The ground wire testing system provided in this embodiment includes a current detection device 8, a voltage detection device 9, a controller 11 and a push device 12, the controller 11 receives the current information and the voltage information sent by the current detection device 8 and the voltage detection device 9, The resistance value information is calculated according to the current information and the voltage information, and the resistance value information is displayed or played to the user through the push device 12, which effectively improves the detection accuracy and efficiency.

Embodiment Four

Embodiment 4 of the present invention provides a testing method based on the ground wire testing system described in Embodiment 3. FIG. 5 is a flow chart of the testing method provided by Embodiment 4 of the present invention. As shown in Figure 5, the method in this embodiment may include:

Step 101, receiving the voltage information sent by the voltage detection device.

Step 102, receiving the current information sent by the current detection device.

Step 103. Determine the resistance value information of the ground wire according to the voltage information and the current information.

Step 104. Send the resistance value information to a push device, so that the push device pushes the resistance value information to the user.

The execution subject of the method in this embodiment may be the controller in the ground wire testing system.

Further, determining the resistance information of the ground wire according to the voltage information and the current information may include:

determining the test resistance information of the ground wire according to the voltage information and the current information;

calculating the actual resistance information of the ground wire according to the test resistance information of the ground wire;

Correspondingly, sending the resistance value information to the push device, so that the push device pushes the resistance value information to the user, including:

Sending the actual resistance value information to the push device, so that the push device pushes the actual resistance value information to the user;

Wherein, the test resistance value information is the resistance value information when the ground wire is connected to the test equipment, and the actual resistance value information is the resistance value information when the ground wire is connected to the electrical equipment.

Further, calculating the actual resistance information of the ground wire according to the test resistance information of the ground wire may include:

Obtain the corresponding relationship between the test resistance value information and the actual resistance value information;

According to the corresponding relationship and the currently detected test resistance information, the corresponding actual resistance information is determined.

In the description of this specification, reference to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" means that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing custom logical functions or steps of a process , and the scope of preferred embodiments of the invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including substantially concurrently or in reverse order depending on the functions involved, which shall It is understood by those skilled in the art to which the embodiments of the present invention pertain.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (10)

1. one kind ground wire, it is characterised in that including：Two grounded parts；

The grounded parts includes：Earth lead and attachment means；

One end of the earth lead connects with corresponding attachment means, and the other end is used to connect with detection device or electrical equipment Connect；

The attachment means are used to be connected with grounding copper bar.

2. ground wire as claimed in claim 1, it is characterised in that also include：Exoperidium；

Two piece-root grafting ground wires are rolled into single line by the exoperidium；

The equal length of two piece-root grafting ground wires.

3. ground wire as claimed in claim 1 or 2, it is characterised in that also include：Insulated connecting piece；

Realized and connected by the insulated connecting piece between two attachment means；

The attachment means are crocodile mouth clip, and the insulated connecting piece is the handle of tape insulation piece.

4. one kind ground wire test system, it is characterised in that including：Described in detection device and claim any one of 1-3 Ground wire；

The detection device is used for the resistance information for detecting the ground wire.

5. ground wire test system as claimed in claim 4, it is characterised in that the detection device includes：Current detecting fills Put, voltage check device and supply unit；

One end of the supply unit is connected with a piece-root grafting ground wire, and the other end is connected with another earth lead；

The current sensing means is used for the current information of the grounded wire of detection stream；

The voltage check device is used for the information of voltage for detecting the supply unit output.

6. ground wire test system as claimed in claim 5, it is characterised in that the current sensing means is ammeter, institute It is voltmeter to state voltage check device.

7. ground wire test system as claimed in claim 5, it is characterised in that also include：Controller and pusher；

The current sensing means is connected with the controller, for the current information detected to be sent into the controller；

The voltage check device is connected with the controller, for the information of voltage detected to be sent into the controller；

The controller is connected with the pusher, for determining ground wire according to the information of voltage and current information that receive Resistance information, and resistance information is sent to the pusher；

The pusher includes display device and/or loudspeaker, for showing and/or playing the resistance information.

It is 8. a kind of based on the method for testing that test system is grounded described in claim 7, it is characterised in that including：

Receive the information of voltage of voltage check device transmission；

Receive the current information that current sensing means is sent；

The resistance information of ground wire is determined according to the information of voltage and the current information；

The resistance information is sent to pusher, so that the resistance information is pushed to user by the pusher.

9. method of testing according to claim 8, it is characterised in that true according to the information of voltage and the current information Surely the resistance information being grounded, including：

According to the information of voltage and the current information, the test resistance information of the ground wire is determined；

According to the test resistance information of the ground wire, the actual resistance information of the ground wire is calculated；

Accordingly, the resistance information is sent to pusher, so that the resistance information is pushed to by the pusher User, including：

The actual resistance information is sent to the pusher, so that the pusher pushes away the actual resistance information Give user；

Wherein, the resistance information when test resistance information is the ground wire connecting test equipment, the actual resistance letter Cease resistance information when electrical equipment is connected for the ground wire.

10. method of testing according to claim 9, it is characterised in that according to the test resistance information of the ground wire, meter The actual resistance information of the ground wire is calculated, including：

Obtain the corresponding relation of test resistance information and actual resistance information；

According to the test resistance information of the corresponding relation and the ground wire, it is determined that the actual resistance of the corresponding ground wire Value information.