CN215180606U

CN215180606U - Electric detection auxiliary tool

Info

Publication number: CN215180606U
Application number: CN202121516825.0U
Authority: CN
Inventors: 张雷
Original assignee: Autel Intelligent Technology Corp Ltd
Current assignee: Autel Intelligent Technology Corp Ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2021-12-14
Anticipated expiration: 2031-07-05

Abstract

The embodiment of the utility model provides an electric detection equipment technical field is related to, an electric detection appurtenance is disclosed, include: the adapter device is provided with at least one conductive interface which is used for being matched with a probe of the electrical detection equipment in an inserting mode, the adapter device is further connected with a plurality of tapping wires, one end of each tapping wire is electrically connected with the conductive interface, and the other end of each tapping wire is electrically connected with different detection terminals. In this way, the embodiment of the utility model provides a can realize the measurement needs of many scenes, improve detection efficiency.

Description

Electric detection auxiliary tool

Technical Field

The embodiment of the utility model provides an electrical detection equipment technical field, concretely relates to electrical detection appurtenance.

Background

During the process of fault diagnosis and troubleshooting of the vehicle electrical system, electrical detection equipment such as a multimeter, an oscilloscope and the like is generally required. However, due to the limitation of the probe function structure of the electrical detection equipment such as a multimeter and an oscilloscope, the use scene is single, and in the actual use scene, the requirement of contact or fixation with the electrical component to be measured is difficult to realize, so that the inconvenience is brought to the measurement.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the embodiment of the utility model provides an electrical detection appurtenance can realize the measurement needs of many scenes, improves detection efficiency.

According to an aspect of the embodiment of the utility model provides an electrical detection appurtenance is provided, include: the adapter device is provided with at least one conductive interface which is used for being matched with a probe of the electrical detection equipment in an inserting mode, the adapter device is further connected with a plurality of tapping wires, one end of each tapping wire is electrically connected with the conductive interface, and the other end of each tapping wire is electrically connected with different detection terminals.

In an optional mode, the auxiliary tool for electrical detection further includes a branching device and a main conductor, one end of the main conductor is electrically connected to the adapter device, the other end of the main conductor is electrically connected to the branching device, and one ends of the plurality of branching conductors, which are far away from the detection terminal, are electrically connected to the branching device respectively.

In an alternative form, the probe terminal includes a connector terminal connection, a connector back stab, a wire puncture assembly, and a measurement clip; the tapping lead comprises a first lead, a second lead, a third lead and a fourth lead, wherein the first lead, the second lead, the third lead and the tapping lead

One end of each fourth wire is electrically connected with the branching device, and the other end of each fourth wire is electrically connected with the corresponding connector terminal connecting piece, the corresponding connector back thorn piece, the corresponding wire puncture assembly and the corresponding measuring clip.

In an alternative mode, the connector terminal connection includes a first metal probe having one end in a pyramid shape and the other end embedded in the first insulating sleeve and electrically connected to the first wire, and a first insulating sleeve.

In an alternative mode, the connector back thorn piece comprises a second metal probe and a second insulating sleeve, one end of the second metal probe is conical, and the other end of the second metal probe is embedded in the second insulating sleeve and is electrically connected with the second lead.

In an alternative mode, the wire puncture assembly comprises a support, a knob and a puncture needle, wherein one side of the support is provided with a notch, the knob is screwed to one end of the support, one end of the puncture needle is embedded in the knob and is electrically connected with the third wire, and the other end of the puncture needle penetrates through the support and enters the notch; when the knob is rotated, the puncture needle can be driven to move in the gap along the length direction of the support.

In an alternative form, the measuring clamp includes a metal clamp and an insulating protective sheath disposed outside the metal clamp, the metal clamp being electrically connected to the fourth wire.

In an alternative form, the probe terminal is detachably connected to the adapter.

In an alternative form, the conductive interface includes a multimeter probe interface and an oscilloscope probe interface.

In an optional manner, the oscilloscope probe interface is a banana interface.

The electrical detection appurtenance of this embodiment, through be equipped with the probe complex electrically conductive interface who is used for with electrical detection equipment on switching device, make electrical detection equipment's probe realize the electricity through pegging graft in electrically conductive interface and connect, according to concrete use scene, the detection terminal that the selection accords with concrete use scene is connected with the electrical component that will detect, just can carry out the fault diagnosis to relevant electrical equipment and detect, this kind of mode, the function structure singleness's of the probe of having overcome current electrical detection equipment shortcoming, probe and electrical component's use scene has been expanded, because each different detection terminal all is connected through different tapping wires, can measure the electrical component far away of distance, the detectable scope of probe has been improved greatly, it is convenient to detect, be favorable to improving detection efficiency.

The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a perspective view illustrating an electrical inspection assisting tool according to an embodiment of the present invention;

fig. 2 shows a top view of the electrical detection auxiliary tool provided by the embodiment of the present invention.

The reference numbers in the detailed description are as follows:

a switching device 10; a conductive interface 11; a multimeter probe interface 111; an oscilloscope probe interface 112;

a tap wire 20; a first conductive line 21; a second conductive line 22; a third conductive line 23; a fourth conductive line 24;

a branching device 30; a main conductor 40; a connector terminal connection member 50; a first metal probe 51; a first insulating sleeve 52; a connector back stab 60; a second metal probe 61; a second insulating sleeve 62; a lead wire puncture assembly 70; a support 71; a notch 711; a lancet 72; a knob 73; a measuring clamp 80; an electrical testing aid 100.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

In an aspect of the embodiments of the present application, an electrical detection assisting tool 100 is provided, which can be applied to fault diagnosis and maintenance detection of vehicle electrical equipment, but is not limited thereto. As shown in fig. 1 and fig. 2, fig. 1 shows a perspective view of an electrical detection assisting tool 100 provided by an embodiment of the present invention, and fig. 2 shows a top view of the electrical detection assisting tool 100 provided by the embodiment of the present invention.

The auxiliary tool 100 for electrical detection comprises a switching device 10, wherein the switching device 10 is provided with at least one conductive interface 11 for being in plug-in fit with a probe of electrical detection equipment, the switching device 10 is further connected with a plurality of tapping leads 20, one end of each tapping lead 20 is electrically connected with the conductive interface 11, and the other end of each tapping lead 20 is electrically connected with different detection terminals.

The adapter device 10 is connected to a test terminal by a tap line 20, i.e. different test terminals are electrically connected to the adapter device 10 by different tap lines 20. The conductive interface 11 may be a metal interface that is electrically connected to a probe of an electrical detection device such as an oscilloscope or a multimeter.

The auxiliary tool 100 for electrical detection of the embodiment is provided with the conductive interface 11 for matching with the probe of the electrical detection device on the adapter 10, so that the probe of the electrical detection device is inserted into the conductive interface 11, so that the auxiliary tool 100 for electrical detection is electrically connected with the electrical detection device, and according to a specific use scene, a detection terminal conforming to the specific use scene is selected to be connected with an electrical component to be detected in a vehicle, so as to perform fault diagnosis and detection on the related electrical device, in this way, the defect of single functional structure of the probe of the existing electrical detection device is overcome, different detection terminals can be connected with different electrical components, the use scenes of the probe and the electrical components are expanded, and each different detection terminal is connected through different tapping wires 20, so that electrical components with longer distances can be measured, the detectable range of the probe is greatly improved, the detection is convenient, and the detection efficiency is favorably improved.

In some embodiments, the electrical testing aid 100 further includes a tap device 30 and a main conductor 40, one end of the main conductor 40 is electrically connected to the adapter device 10, the other end of the main conductor 40 is electrically connected to the tap device 30, and one ends of the plurality of tap conductors 20, which are far away from the probe terminal, are respectively electrically connected to the tap device 30.

The branch device 30 is electrically connected to the conductive interface 11 of the adapter device 10 through the main conductor 40. The different probing terminals are electrically connected to the tap device 30 through the corresponding tap wires 20, and then electrically connected to the conductive interface 11 of the adapter device 10 through the main wire 40.

Due to the large number of tap wires 20, during use, twisting and combing are easy to occur if they are long, and contact detection with distant electrical components is difficult if they are too short. This application is through setting up separated time device 30, the tapping wire 20 that corresponds different detection terminals is direct to be connected with separated time device 30 electricity, be connected through leading wire 40 electricity between separated time device 30 and the switching device 10 for can be through the length of extension leading wire 40, shorten the length of each tapping wire 20, solve tapping wire 20 because the winding problem takes place for the overlength, the arrangement of tapping wire 20 and leading wire 40 also is convenient for to this kind of mode, be favorable to improving user experience.

As an example, the length of the main conductor 40 may be 1-2m, the length of the tap conductor may be 0.1-0.3m, and the respective specific lengths of the main conductor 40 and the tap conductor 20 may be set according to actual needs, and are not specifically limited herein.

In some specific embodiments, conductive interface 11 includes a multimeter probe interface 111 and an oscilloscope probe interface 112. The multimeter probe interface 111 and the oscilloscope probe interface 112 are both electrically connected to the tapping wires 20, that is, the probing terminal connected to each tapping wire 20 is electrically connected to the multimeter probe interface 111 and the oscilloscope probe interface 112. Multimeter probe interface 111 is adapted to a probe of a multimeter, and oscilloscope probe interface 112 is adapted to a probe of an oscilloscope.

When the universal meter is used, a probe of the universal meter is plugged into the probe interface 111 of the universal meter, so that the universal meter is electrically connected with the auxiliary electrical detection tool 100, a probe of the oscilloscope is plugged into the probe interface 112 of the oscilloscope, so that the oscilloscope is electrically connected with the auxiliary electrical detection tool 100, then, a required detection terminal is selected to be connected with an electrical component to be detected, and fault diagnosis and detection of the corresponding electrical component are performed. Compared with the traditional mode that the probes of the oscilloscope or the universal meter are directly connected with the electrical components to be measured, the mode has the advantages that the probes of the electrical detection equipment such as the universal meter and the oscilloscope can be respectively and electrically connected with the detection terminals of different use scenes through the switching action of the switching device 10, the use scenes of the probes of the electrical detection equipment such as the universal meter and the oscilloscope are expanded, and meanwhile, the detection range of the probes is improved because each different detection terminal can be electrically connected with the electrical equipment which is far away.

The conductive interface 11 may be provided with an interface that is matched and connected with a probe of other electrical detection equipment according to actual needs.

In some embodiments, the oscilloscope probe interface 112 may be a banana interface, which has better electrical performance and simple assembly, and can be adapted to most of the oscilloscope probe plugs on the market, and at the same time, is beneficial to reducing the use cost. Of course, in some other embodiments, oscilloscope probe interface 112 may also be another conductive metal interface. The multimeter probe interface 111 may also be a universal metal hole.

Specifically, the adapter device 10 includes a first housing and a first conductor disposed in the first housing, the universal probe interface and the oscilloscope probe interface 112 are disposed at an interval on the same side of the first housing, and the universal probe interface and the oscilloscope probe interface 112 are electrically connected to the first conductor. The first conductor may be a metal conductor or a circuit board, and is not limited in this respect.

In the case of no branching device 30, the other ends of the tapping wires 20, which are not connected to the probing terminals, can be directly fixed to the other side of the first housing, which is away from the conductive interface 11 (i.e., the multimeter probe interface 111 and the oscilloscope probe interface 112), and penetrate into the first housing to be electrically connected to the first conductor, so that the probing terminals are electrically connected to the adapter 10 through the tapping wires 20, respectively.

In the case that the electrical detection auxiliary tool 100 further includes the tap device 30 and the main conductor 40, one end of the main conductor 40 away from the tap device 30 (i.e., the end of the main conductor 40 not electrically connected to the tap device 30) may be fixed to the other side of the first housing away from the conductive interface 11 (i.e., the multimeter probe interface 111 and the oscilloscope probe interface 112), and penetrate into the first housing to be electrically connected to the first conductor, so that the tap device 30 is electrically connected to the adapter device 10.

Further, the branching device 30 includes a second housing and a second conductor disposed in the second housing, and the tapping wires 20 corresponding to different detecting terminals are fixed on one side of the second housing and penetrate into the second housing to be electrically connected with the second conductor, so that the different detecting terminals are electrically connected with the branching device 30, where the second conductor may be a metal conductor or a circuit board, and this is not limited specifically here. The other end of the main conductor 40 away from the adapter 10 is fixed to the other side of the second housing and penetrates into the second housing to be electrically connected with the first conductor 21.

In some embodiments, the probing terminal comprises a connector terminal connector 50, a connector back thorn 60, a wire puncture assembly 70 and a measuring clip 80, the tapping wire 20 comprises a first wire 21, a second wire 22, a third wire 23 and a fourth wire 24, one end of each of the first wire 21, the second wire 22, the third wire 23 and the fourth wire 24 is electrically connected to the wire dividing device 30, and the other end of each of the first wire 21, the second wire 22, the third wire 23 and the fourth wire 24 is electrically connected to the corresponding connector terminal connector 50, the connector back thorn 60, the wire puncture assembly 70 and the measuring clip 80. That is, the connector terminal connection member 50 is electrically connected to the branching device 30 through the first wire 21, the connector back thorn member 60 is electrically connected to the branching device 30 through the second wire 22, the wire piercing assembly 70 is electrically connected to the branching device 30 through the third wire 23, and the measuring clip 80 is electrically connected to the branching device 30 through the fourth wire 24.

The measuring clip 80 may be used to clamp and fix with a ground engaging metal member on a vehicle, and when in use, the measuring clip 80 may be directly clamped on a ground engaging stud or a conductive sheet metal member to be measured, so that the measuring clip 80 and the ground engaging stud or the conductive sheet metal member form an electrical circuit. The connector terminal connector 50 is adapted to be directly connected to a connection terminal of a connector in a mating manner, so that a terminal harness of the connector and the electrical inspection auxiliary tool 100 form an electrical circuit. The connector back thorn 60 is used to pierce through a wire inlet hole of the connector back to achieve electrical connection with a connection terminal thereof in a case where direct connection with the terminal of the connector is impossible. The lead wire puncture assembly 70 is used to puncture the lead wire to be measured in order to make an electrical connection to the lead wire.

In the electrical inspection assisting tool 100 of the present embodiment, the connector terminal connector 50, the connector back stab 60, the wire puncture assembly 70, and the measurement clip 80 are electrically connected to the relay device 10 through the corresponding tap wire 20, respectively, and when in use, components such as the measurement clip 80, the connector terminal connector 50, the connector back stab 60, and the wire puncture assembly 70 that meet specific usage scenarios are selected to be connected to corresponding electrical components according to specific usage scenarios, so that fault diagnosis and inspection of electrical equipment can be performed.

It should be noted that the probe terminal may also include other probe connections besides the connector terminal connection 50, the connector back stab 60, and the lead stab assembly 70 and the measurement clamp 80, etc.

In some embodiments, the connector terminal connection 50 is a male connection head that mates with a female connector terminal, or the connector terminal connection 50 is a female connection head that mates with a male connector terminal. In a preferred embodiment, the connector terminal connector 50 is a male connector adapted to mate with a female connector terminal.

In some specific embodiments, the connector terminal connector 50 includes a first metal probe 51 and a first insulating sleeve 52, one end of the first metal probe 51 is pyramid-shaped, the other end is embedded in the first insulating sleeve 52, and the first conducting wire 21 is electrically connected, that is, the first metal probe 51 is electrically connected with the distribution device 30 through the first conducting wire 21.

The first metal probe 51 may be a triangular pyramid, a square pyramid or other pyramid, and preferably, the first metal probe 51 is a square pyramid, that is, the cross-sectional shape of the first metal probe 51 is a quadrilateral. The first insulating sleeve 52 may be made of an insulating material, such as plastic, the first insulating sleeve 52 may be cylindrical, prismatic, or other shapes, and the first insulating sleeve 52 is used for being held by a user and preventing the first metal probe 51 from being in conductive contact.

In the case that the connector is detached from the vehicle, the first metal probe 51 can be inserted into the connecting terminal of the connector to be electrically connected with the connector, and the first metal probe 51 is set to be in a pyramid shape, so that the contact area of the first metal probe 51 inserted into the connecting terminal of the connector can be increased, and the reliability of the conductive connection can be improved.

In some embodiments, the connector backspin 60 includes a second metal probe 61 and a second insulating sleeve 62, one end of the second metal probe 61 is conical, and the other end is embedded in the second insulating sleeve 62 and electrically connected to the third terminal.

One end of the second conductive wire 22 away from the branching device 30 is fixed to the second insulating sleeve 62, and is electrically connected to the second metal probe 61 in the second insulating sleeve 62. The second insulating sleeve 62 may be made of an insulating material, such as plastic, the second insulating sleeve 62 may be cylindrical, prismatic or other shapes, and the second insulating sleeve 62 is used for being held by a user and preventing the second metal probe 61 from being in conductive contact.

In the case of a connector which is not removed from a vehicle, since the second metal probe 61 cannot be directly inserted into a connection terminal of the connector, in this case, the second metal probe 61 needs to be inserted into the connector from an insertion hole at the back of the connector to be electrically connected with the connection terminal, and therefore, the second metal probe 61 can be easily inserted into the connector from the insertion hole at the back of the connector to be electrically connected with the connection terminal of the connector by setting the second metal probe 61 to be conical.

In some embodiments, the wire puncture assembly 70 includes a support 71, a lancet 72, and a knob 73, wherein a notch 711 is formed on one side of the support 71, the knob 73 is screwed to one end of the support 71, one end of the lancet 72 is embedded in the knob 73 and electrically connected to the third wire 23, and the other end of the lancet 72 penetrates the support 71 into the notch 711. When knob 73 is rotated, lancet 72 can be driven to move within notch 711 along the length of support 71.

Wherein the supporting member 71 and the knob 73 can be made of an insulating material, such as plastic, and the end of the third wire 23 away from the distributing device 30 is fixed to the knob 73 and embedded in the knob 73 to be electrically connected with the lancet 72.

The electric equipment of the vehicle is often connected through a wire, and the two ends of the wire and the electric element connected with the wire are sometimes installed in the vehicle, so that the electric element cannot be directly connected during detection, at the moment, the wire can be placed in the notch 711 of the supporting piece 71, the puncture needle 72 can be punctured into the wire connected with the electric component to be detected by rotating the knob 73, and electric connection is realized.

In some embodiments, the measuring clip 80 includes a metal clip and an insulating protective sheath covering the metal clip, wherein the metal clip is electrically connected to the fourth wire 24, i.e., the metal clip is electrically connected to the distribution device 30. The insulating protective sleeve can be made of flexible insulating materials, such as rubber, silica gel and the like.

Insulating protective sheath is established through the outside cover at metal clip to this embodiment to the user can prevent through insulating protective sheath when using with metal clip conductive contact, when avoiding metal clip and bonding part contact, the user takes place the electric shock accident because of contacting with metal clip, and the short circuit risk that the touching leads to by accident.

In other embodiments, the probing terminals are removably connected to the transition device 10.

Specifically, in the case where the electrical detection assisting tool 100 does not have the tap device 30 and the main conductor 40, one end of each of the tap conductors 20 distant from the corresponding detection terminal (i.e., the end not connected to the detection terminal) is provided with a tap, respectively, the relay device 10 is provided with tap ports equal in number to the tap conductors 20, the tap ports are electrically connected to the conductive interface 11, the tap ports are detachably inserted into the tap ports, and when the tap ports are inserted into and mated with the tap ports, the tap conductors 20 are electrically connected to the relay device 10. Of course, the test terminals can also be detachably connected directly to the corresponding tapping line 20. Through the detachable connection of the detection terminal and the switching device 10, the user can replace the used detection terminal according to actual needs.

For the case where the electrical testing aid 100 further includes the breakout device 30 and the main conductor 40, the tap may be provided on the breakout device 30.

In other embodiments, main interfaces may be further disposed between the branch device 30 and the adapter device 10, wherein the main interface of the branch device 30 is electrically connected to the tap interface, the main interface of the adapter device 10 is electrically connected to the conductive interface 11, main connectors adapted to the main interfaces are disposed at two ends of the main conductor 40, and the main connectors at two ends of the main conductor 40 are detachably inserted into the main interfaces, so that the branch device 30 is electrically connected to the adapter device 10. By detachably connecting the main conductor 40 with the branching device 30 and the adapter device 10, the user can conveniently change the length of the main conductor 40 according to the actual measurement range.

It should be noted that the main conductor 40, the branch device 30 and the adapter device 10 may also adopt a non-detachable connection structure, and the tap conductor 20 and the branch device 30 may also adopt a non-detachable connection structure.

It should be noted that unless otherwise indicated, technical or scientific terms used in accordance with embodiments of the present invention shall have the ordinary meaning as understood by those skilled in the art to which embodiments of the present invention pertain.

In the description of the embodiments of the present invention, the terms "length", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for convenience of description of the embodiments of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention.

Furthermore, the technical terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. An electrical testing aid, comprising: the adapter device is provided with at least one conductive interface which is used for being matched with a probe of the electrical detection equipment in an inserting mode, the adapter device is further connected with a plurality of tapping wires, one end of each tapping wire is electrically connected with the conductive interface, and the other end of each tapping wire is electrically connected with different detection terminals.

2. The electrical testing aid of claim 1, further comprising a branching device and a main conductor, wherein one end of the main conductor is electrically connected to the adapter device, the other end of the main conductor is electrically connected to the branching device, and ends of the plurality of tapping conductors, which are respectively away from the probing terminal, are respectively electrically connected to the branching device.

3. The electrical testing aid of claim 2, wherein the probe terminal includes a connector terminal connection, a connector barb, a wire piercing assembly, and a measurement clip;

the tapping lead comprises a first lead, a second lead, a third lead and a fourth lead, one end of each of the first lead, the second lead, the third lead and the fourth lead is electrically connected with the tapping device, and the other end of each of the first lead, the second lead, the third lead and the fourth lead is electrically connected with the corresponding connector terminal connecting piece, the corresponding connector back pricking piece, the corresponding lead pricking component and the corresponding measuring clip.

4. The electrical testing aid of claim 3, wherein the connector terminal connection comprises a first metal probe having a pyramid shape at one end and a first insulating sleeve having an opposite end embedded in the first insulating sleeve and electrically connected to the first wire.

5. The electrical testing aid of claim 3, wherein the connector barb comprises a second metal probe and a second insulating sleeve, wherein one end of the second metal probe is conical and the other end of the second metal probe is embedded in the second insulating sleeve and electrically connected to the second wire.

6. The electrical testing aid of claim 3, wherein the wire-piercing assembly comprises a support, a knob, and a lance, wherein a notch is formed in one side of the support, the knob is screwed to one end of the support, one end of the lance is embedded in the knob and electrically connected to the third wire, and the other end of the lance extends through the support into the notch;

when the knob is rotated, the puncture needle can be driven to move in the gap along the length direction of the support.

7. The electrical testing aid of claim 3, wherein the measuring clip comprises a metal clip and an insulating protective sheath disposed outside the metal clip, the metal clip being electrically connected to the fourth wire.

8. The electrical testing aid of any one of claims 1-7 wherein said probe terminal is removably connected to said adapter device.

9. The electrical testing aid of any one of claims 1-7, wherein the conductive interface comprises a multimeter probe interface and an oscilloscope probe interface.

10. The electrical testing aid of claim 9, wherein the oscilloscope probe interface is a banana interface.