CN207817046U - A kind of cable termination earth current measuring device - Google Patents
A kind of cable termination earth current measuring device Download PDFInfo
- Publication number
- CN207817046U CN207817046U CN201820133161.1U CN201820133161U CN207817046U CN 207817046 U CN207817046 U CN 207817046U CN 201820133161 U CN201820133161 U CN 201820133161U CN 207817046 U CN207817046 U CN 207817046U
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- Prior art keywords
- amperemeter
- clamp
- insulating
- handle
- insulating bar
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- 238000004804 winding Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 abstract description 4
- 210000000080 chela (arthropods) Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The utility model discloses a kind of cable termination earth current measuring device, including clamp on amperemeter and insulating bar, clamp on amperemeter is mounted on the top of insulating bar；Two binding clips of the clamp on amperemeter are rotatably arranged on the lower end of shell, and two binding clips connect under normality forms the jaw being closed with shell；The lower part of insulating bar is equipped with handle, and the handle includes integrally formed interconnecting piece and clamping part, and the connection angle of interconnecting piece and clamping part is more than 90 degree, and interconnecting piece passes through shaft and insulating bar rotation connection；Insulating cord is connected between handle and clamp on amperemeter, one end of insulating cord is connect with handle, any one binding clip connection of the other end and clamp on amperemeter, handle rotation pulls insulating cord to open jaw to drive binding clip to rotate.Handle on operable insulating bar pulls insulating cord to drive binding clip rotating opening jaw, so that cable to be measured is smoothly caught in jaw and measures, be conveniently operated, will not act power to cable, it can also be used to the measurement of flexible cable.
Description
Technical field
The utility model is related to current measurement techniques fields, and in particular to a kind of cable termination earth current measuring device.
Background technology
The size of high voltage single-core cable protective metal shell earth current can objectively reflect cable run oversheath health status,
Earth current, which crosses conference, influences the current-carrying capacity of cable run operation, and then influences insulation life and the safe operation of high-tension cable,
Have become one of the important process of high-tension cable operational management to high-voltage cable metal sheath checking for grounded current.
Cable termination earth current is measured using clamp on amperemeter mostly at present, as shown in Figure 1, clamp on amperemeter includes shell
Body, positioned at upper part of the housing jaw, open and close the binding clip of jaw and be arranged in shell for measuring and showing the electricity of electric current
Road, wherein binding clip upper and lower ends have cable guide surface.Clamp on amperemeter is moved to below cable to be measured before measuring, makes cable position
In the upper guide surface of binding clip, clamp on amperemeter is firmly pushed up, the upper guide surface of binding clip acts on cable, since cable is fixed
It is motionless, so that binding clip rotating opening jaw, cable is entered jaw；After being measured, clamp on amperemeter, the lower guiding of binding clip are pulled down
Face acts on cable, and binding clip rotating opening jaw is made to discharge cable.But this passive opening makes tested cable stress, is easy
Cause cable connection to loosen, influences insulation performance；The cable of small cross sections product is softer, is difficult by cable clamp using passive opening
Enter jaw.
Invention content
A kind of cable termination earth current measuring device that in order to solve the above problems, the utility model proposes, passes through handle
Binding clip rotating opening jaw is driven with insulating cord, cable is facilitated to be caught in or stretch out.
The specific technical solution of the utility model is as follows：A kind of cable termination earth current measuring device, including pincerlike electricity
Flow table and insulating bar, clamp on amperemeter are mounted on the top of insulating bar；Two binding clips of the clamp on amperemeter are rotatably arranged on
The lower end of shell, two binding clips connect under normality forms the jaw being closed with shell；The lower part of insulating bar is equipped with handle, the hand
Handle includes integrally formed interconnecting piece and clamping part, and the connection angle of interconnecting piece and clamping part is more than 90 degree, interconnecting piece by turn
Axis is rotatablely connected with insulating bar；Insulating cord is connected between handle and clamp on amperemeter, one end of insulating cord is connect with handle, separately
Any one of one end and clamp on amperemeter binding clip connect, and handle rotation pulls insulating cord to open and clamp to drive binding clip to rotate
Mouthful.
Further, the shell bottom end of the clamp on amperemeter is equipped with connecting pole, and top and the connecting pole of insulating bar pass through set
Pipe connects, and described sleeve pipe is straight line casing or right angle casing.
Further, the insulating bar includes multistage sub bar, is threadedly coupled between sub bar.
Further, the insulating cord is threaded through in insulating bar, and one end of insulating cord is stretched out and pincer from the top of insulating bar
Any one binding clip of ammeter connects, and the other end is pierced by from the cinclides of insulating bar being located above handle and is connect with handle.
Further, the measuring device further includes the telescopic spool for being laid with insulating cord, one end of telescopic spool
It is snapped connection with the housing sidewall of clamp on amperemeter, the bar wall of the other end and insulating bar being located above handle snaps connection.
Further, the shell of the clamp on amperemeter is equipped with the wire winding ring for winding insulating cord.
Further, the lower end of the insulating bar covers rubber sleeve.
The beneficial effects of the utility model：(1) jaw of clamp on amperemeter is located at the lower end of shell in this measuring device, uses
It is arranged in housing bottom in the binding clip of folding jaw, clamp on amperemeter makes cable be caught in jaw, measurement process above cable
Middle clamp on amperemeter can be hung on cable, and holding insulating bar without staff supports clamp on amperemeter, saves staff's body
Power carries out other operations convenient for staff, while can also carry out long-term measurement free of discontinuities；(2) pass through the handle on insulating bar
It pulls insulating cord to drive binding clip rotating opening jaw, so that cable to be measured is smoothly caught in jaw and measure, be conveniently operated, it will not
Power is acted to cable, it can also be used to the measurement of flexible cable.
Description of the drawings
Fig. 1 is the structural schematic diagram of existing clamp on amperemeter.
Fig. 2 is the structural schematic diagram of the utility model embodiment.
Specific implementation mode
Below in conjunction with attached drawing, the technical scheme in the embodiment of the utility model is clearly and completely illustrated.
The utility model proposes a kind of cable termination earth current measuring device, including clamp on amperemeter and insulating bar,
Clamp on amperemeter is mounted on the top of insulating bar.Two binding clips of the clamp on amperemeter are rotatably arranged on the lower end of shell, often
Two binding clips connect under state forms the jaw being closed, binding clip rotating opening jaw under external force with shell.Under insulating bar
Portion is equipped with handle, and the handle includes integrally formed interconnecting piece and clamping part, and the connection angle of interconnecting piece and clamping part is more than
90 degree, interconnecting piece is rotatablely connected by shaft and insulating bar.Insulating cord, insulating cord are also associated between handle and clamp on amperemeter
One end connect with handle, any one binding clip of the other end and clamp on amperemeter connection, handle rotation pulls insulating cord with band
Dynamic binding clip rotating opening jaw.
Fig. 2 is the structural schematic diagram of specific embodiment of the utility model, as shown in Fig. 2, the shell of the clamp on amperemeter 1
Body has and is sequentially connected and integrally formed length erects shell, horizontal shell and short perpendicular shell, shell has the pincers that Open Side Down in barb-like
Mouth 12, left binding clip 13 are rotatably arranged on the bottom of short perpendicular shell, and right binding clip 14 is rotatably arranged on the lower end side of long perpendicular shell, normality
Under, left binding clip connects with right binding clip makes jaw be closed, left binding clip or right binding clip rotating opening jaw under external force.Long perpendicular shell
Bottom end face be equipped with connecting pole 15, connected by casing 16 between the top and connecting pole 15 of insulating bar 2.The connection of handle 3
Portion 31 and the connection angle of clamping part 32 are more than 90 degree, one-handed performance handle when conveniently holding insulating bar.A left side for clamp on amperemeter
Through-hole is provided on binding clip, the interconnecting piece of handle and the junction of clamping part are also equipped with through-hole, and the both ends of insulating cord 4 lead to respectively
It crosses through-hole to be fixed on binding clip and handle, wire loop can be also set on binding clip and handle respectively for fixing insulating cord.Work as insulation
When rope is fixed with left binding clip, insulating cord connect around the top of clamp on amperemeter with handle.Handle is pressed toward insulating bar direction, even
Socket part rotates down, and handle pulls insulating cord one end connected to it downward, to the other end of insulating cord drive left binding clip to
Upper rotation opens jaw, cable is made to enter jaw；After cable enters jaw, release handle, left binding clip automatically reverts to normality
Connect with right binding clip and is closed jaw.
Described sleeve pipe 16 is straight line casing or right angle casing, can select straight line according to the type for needing to select casing is measured
Casing connects clamp on amperemeter with the top of insulating bar, can be used for measuring the cable for being parallel to ground, selects right angle casing will
Clamp on amperemeter is connected with the top of insulating bar, can be used for measuring the cable perpendicular to ground.
The insulating bar includes multistage sub bar, is threadedly coupled between sub bar, can select sub bar according to the height of cable to be measured
Quantity, multistage sub bar is connected.Telescopic insulating bar, club head portion diameter is thinner, when measuring eminence cable, pincerlike electric current
Table, which is fixed on head, can cause operation to lose stabilization, it is difficult to ammeter are caught in cable, and use and be threadedly coupled each sub bar composition
Insulating bar, each sub bar thickness is identical, installation clamp on amperemeter measure when relatively stablize.
In order to avoid insulating cord is caught on by external equipment, insulating cord can be threaded through in insulating bar, one end of insulating cord from
The top of insulating bar is stretched out to be connect with any one binding clip of clamp on amperemeter, and the other end is located at from insulating bar above handle
It is pierced by cinclides and is connect with handle.
Telescopic spool (not shown) be may also set up for being laid with insulating cord, one end and the pincer electricity of telescopic spool
The housing sidewall of flow table snaps connection, and the bar wall of the other end and insulating bar being located above handle snaps connection, specifically, flexible
The both ends of formula spool are equipped with block tongue, and the snap ring coordinated with block tongue is equipped in the housing sidewall and insulating bar of clamp on amperemeter,
Snap ring on insulating bar is located above handle.Telescopic spool can match the length of insulating bar, and insulating cord is through in spool, is convenient for
Control, while insulating cord is protected, it prevents from catching on influence folding jaw by external equipment.
The wire winding ring 17 for winding insulating cord is additionally provided on the shell of the clamp on amperemeter, when not in use by insulating cord
It is wrapped on wire winding ring, convenient for storage.
The lower end of the insulating bar covers rubber sleeve 21, and when use, which holds, covers one section of rubber sleeve on insulating bar, increase
The friction of hand and insulating bar, convenient for insulating bar of holding with a firm grip.
Claims (7)
1. a kind of cable termination earth current measuring device, including clamp on amperemeter and insulating bar, clamp on amperemeter is mounted on exhausted
The top of edge bar, which is characterized in that two binding clips of the clamp on amperemeter are rotatably arranged on the lower part of shell, two under normality
Binding clip connects forms the jaw being closed with shell；The lower part of insulating bar is equipped with handle, and the handle includes integrally formed connection
The connection angle of portion and clamping part, interconnecting piece and clamping part is more than 90 degree, and interconnecting piece is rotatablely connected by shaft and insulating bar；Hand
Insulating cord is connected between handle and clamp on amperemeter, one end of insulating cord is connect with handle, times of the other end and clamp on amperemeter
One binding clip connection of meaning, handle rotation pull insulating cord to drive binding clip rotating opening jaw.
2. cable termination earth current measuring device according to claim 1, which is characterized in that the clamp on amperemeter
Shell bottom end is equipped with connecting pole, and with connecting pole by casing connection, described sleeve pipe is straight line casing or right angle on the top of insulating bar
Casing.
3. cable termination earth current measuring device according to claim 1 or 2, which is characterized in that the insulating bar packet
Multistage sub bar is included, is threadedly coupled between sub bar.
4. cable termination earth current measuring device according to claim 1, which is characterized in that the insulating cord is threaded through
In insulating bar, one end of insulating cord is stretched out from the top of insulating bar to be connect with any one binding clip of clamp on amperemeter, the other end
It is connect from being located to be pierced by the cinclides above handle on insulating bar with handle.
5. cable termination earth current measuring device according to claim 1, which is characterized in that the measuring device is also wrapped
The telescopic spool for being laid with insulating cord is included, one end of telescopic spool and the housing sidewall of clamp on amperemeter snap connection,
The bar wall of the other end and insulating bar being located above handle snaps connection.
6. cable termination earth current measuring device according to claim 1, which is characterized in that the clamp on amperemeter
Shell is equipped with the wire winding ring for winding insulating cord.
7. cable termination earth current measuring device according to claim 1, which is characterized in that the lower end of the insulating bar
Cover rubber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820133161.1U CN207817046U (en) | 2018-01-25 | 2018-01-25 | A kind of cable termination earth current measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820133161.1U CN207817046U (en) | 2018-01-25 | 2018-01-25 | A kind of cable termination earth current measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207817046U true CN207817046U (en) | 2018-09-04 |
Family
ID=63325210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820133161.1U Active CN207817046U (en) | 2018-01-25 | 2018-01-25 | A kind of cable termination earth current measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207817046U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133357A (en) * | 2019-06-10 | 2019-08-16 | 贵州电网有限责任公司 | A kind of DC magnetic bias current test device and its operating method |
-
2018
- 2018-01-25 CN CN201820133161.1U patent/CN207817046U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133357A (en) * | 2019-06-10 | 2019-08-16 | 贵州电网有限责任公司 | A kind of DC magnetic bias current test device and its operating method |
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