CN201387943Y - Prediction type sensing ground wire - Google Patents

Prediction type sensing ground wire Download PDF

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Publication number
CN201387943Y
CN201387943Y CN200920011146U CN200920011146U CN201387943Y CN 201387943 Y CN201387943 Y CN 201387943Y CN 200920011146 U CN200920011146 U CN 200920011146U CN 200920011146 U CN200920011146 U CN 200920011146U CN 201387943 Y CN201387943 Y CN 201387943Y
Authority
CN
China
Prior art keywords
ground wire
cable
ground
prediction type
type sensing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN200920011146U
Other languages
Chinese (zh)
Inventor
姜广敏
陈洪波
郑景红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liaoning Electric Power Corporation Panjin Power Supply Corporation
State Grid Corp of China SGCC
Original Assignee
LIAONING ELECTRIC POWER Corp PANJIN POWER SUPPLY CORPORATION
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LIAONING ELECTRIC POWER Corp PANJIN POWER SUPPLY CORPORATION filed Critical LIAONING ELECTRIC POWER Corp PANJIN POWER SUPPLY CORPORATION
Priority to CN200920011146U priority Critical patent/CN201387943Y/en
Application granted granted Critical
Publication of CN201387943Y publication Critical patent/CN201387943Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a prediction type sensing ground wire, which solves the problem that the ground wire can not alarm for the induced voltage, thereby resulting in potential safety hazards. The prediction type sensing ground wire comprises a cable and a ground wire clip, wherein, one end of the cable is connected with the ground wire clamp, the other end of the cable is connected with a ground wire pile head. The prediction type sensing ground wire is characterized in that the ground wire clip is provided with an induced voltage alarm device, the sharp end of the cable is connected with the ground wire clip after the cable penetrates through the operating rod of the insulation telescopic sleeve, the terminal of the operating rod of the insulation telescopic sleeve is provided with a roller through a connecting plate, the terminal of the cable is wound on the shaft of the roller, an additional cable is also arranged, one end of the cable is connected with the connecting plate, and the other end of the cable is connected with the ground wire pile head. The utility model can prevent the poor contact of the ground wire and the damage caused by the induced voltage in the wire or the ground wire to the operators. As the operating rod has the multi-section telescopic sleeve structure and the terminal of the operating rod is provided with the roller, the utility model can facilitate the collection and carrying.

Description

Induction prevising grounding wire
Technical field
The utility model belongs to defeated pretty electro-technical field, the earth connection that uses when particularly having a power failure.
Background technology
The temporary ground wire that electric power system is used is made up of ground clamp, cable and ground wire pile crown, and wherein ground clamp is used to be articulated in lead, and the ground wire pile crown is fixed on the ground wire, and cable connects ground clamp and ground the end of a thread.When carrying out overhaul of the equipments, by the operating personnel with ground wire hitching near the lead the electric equipment.After a certain lead in the power transmission path had a power failure, the lead electric field action can produce induced potential near this lead was subjected to.If it is improper that earth connection hangs, there is the virtual connection phenomenon, cause earth connection ground connection reliably, like this, induced potential will work the mischief to the operating personnel.According to reports, Yichang transmission of electricity company of Hubei ehv power transmission company in 2008 carries out the insulator cleaning to 500 kilovolt shaft towers and disappears when lacking operation operation personnel chest electrification death near the earth terminal of ground wire.The earth connection (cable) that uses at present is suspended in the air in addition, rocks greatly, particularly uses on the tower-mounted circuit of same iron, and safe distance all is difficult to guarantee sometimes.
Content of the present utility model
Can not report to the police to induced voltage in order to solve earth connection, have the problem of potential safety hazard, propose following technical scheme.
The utility model is achieved in that
A kind of induction prevising grounding wire, it comprises the ground clamp that cable is connected with the one end, the ground wire pile crown that the other end connects, its special character are that the induced voltage warning device is installed on the ground clamp.
In order to prevent that cable from rocking big problem aloft, after cable passes insulation extension sleeve action bars, at its most advanced and sophisticated ground clamp that connects, at its terminal ground wire pile crown that connects.
For the ease of the folding and unfolding cable, by connecting plate cylinder is installed at the end of insulation extension sleeve action bars, the Mo Duan Chan of cable is on the axle of cylinder, and other has one section cable, and the one end links to each other with connecting plate, and the other end connects the ground wire pile crown.
Above-mentioned induction alarm device can adopt prior art and product, melts warning device in the Safety helmet with an electric alarm means (DBM-III-A type) that safety equipment Co., Ltd produces as adopting Chong Qingkang.Insulation extension sleeve action bars also is a known technology.
This induction prevising grounding wire using method is: at first the lead that needs hanging earthing conductor is carried out electrical verification, after determining no-voltage, the ground wire pile crown is connected reliably with iron tower, then with ground clamp near lead, this moment warning device send " " chimes of doom, when ground clamp with after lead closely contacts, chimes of doom disappears.If there is the virtual connection phenomenon in the earth connection loose contact, warning device can send chimes of doom so, reminds the operating personnel to check the connection status of earth connection, make it contact good, till chimes of doom disappears.Avoided the earth connection loose contact like this, lead or earth connection exist induced voltage to the harm that the operating personnel causes, and have improved the reliability of earth connection.
Because action bars adopts the multi-joint telescoping telescoping structure, at the end of action bars cylinder is installed, therefore, when this earth connection not a few joint sleeves of time spent can be reduced in the thickest joint, electric cable Chan is convenient to collection like this and is carried on the axle of cylinder.When using, a few joint sleeves can be drawn back, make ground clamp contact wire.
Description of drawings
Fig. 1 is the full sectional view of embodiment, and Fig. 2 is the vertical view of embodiment, and Fig. 3 is the partial enlarged drawing A of embodiment, and Fig. 4 is another state diagram of ground clamp shown in Figure 3, and Fig. 5 is the partial enlarged drawing B of embodiment, and Fig. 6 is the warning device circuit diagram of embodiment.
Embodiment
Embodiment, narrate embodiment with reference to the accompanying drawings.
A kind of induction prevising grounding wire, it comprises cable 5, ground clamp 7 and ground wire pile crown 9.Described cable 5 is made by annealed copper wire.Cable 5 passes insulation telescopic sleeve pipe type sucking action bars 4 backs and connects ground clamp 7, the end of cable 5 fixedly Bing Qie Chan around cylinder 1 the axle 2 on, axle 2 is installed in the end of telescopic sleeve pipe type sucking action bars 4 by connecting plate 3, crank 8 is installed on the axle 2, on connecting plate 3, is connected ground wire pile crown 9 by one section cable (annealed copper wire).Described ground clamp 7 is the rat clip type structure, promptly two clamping plate are connected as one by bearing pin 7.4, mounting spring 7.5 on bearing pin 7.4, on a slice clamping plate, fork 7.2 is installed by bearing pin 7.1, the other end of fork 7.2 is bearing on another sheet ground wire clamping plate, make the open-shaped attitude of ground clamp, on another sheet clamping plate, have through hole 7.3 for fork 7.2 activities.Warning device 6 is installed on ground clamp 7.Described warning device 6 comprises the triggering loop that peripheral cells such as oscillator that peripheral cells such as BG1, BG2 constitute and BG3 constitute.When ground clamp when the charged object, the BG3 conducting, the base stage of BG2 has high potential, circuit vibrates, loud speaker is sounded, is reported to the police.K1 can select different resistance among the figure, formation 220V, 66KV, the electric pressure that 220KV is different.AN is a test button, and circuit is sounded during connection, can checking circuit operate as normal whether.When AN connects, capacitor C3 charging, oscillator work, loudspeaker Y are sounded, and discharge when AN disconnects the back capacitor, be put into certain voltage after, oscillator quits work.
When this induction prevising grounding wire uses, at first the ground wire pile crown is linked to each other with iron tower (ground wire), then a few joint insulation telescopic sleeve pipe type sucking action bars are pulled out successively, reach till the length that needs.Two ground clamps of fork 7.2 supportings this moment, ground clamp 7 open-shaped attitudes, as shown in Figure 3.When the operation personnel with ground clamp 7 during near lead, warning device 6 sends " squeak " and reports to the police.When ground clamp 7 contacted with lead, lead and fork 7.2 collisions broke away from fork 7.2 and a slice ground wire clamping plate wherein, and under the effect of spring 7.5, ground clamp 7 closes, with wire clamp therein, and as shown in Figure 4.When removing earth connection, the crank 8 on 12 of the hand drum, with Dian Lan Chan around, and action bars 4 is shortened.Be convenient to like this collect and carry.

Claims (3)

1, a kind of induction prevising grounding wire, it comprises the ground clamp that cable is connected with the one end, the ground wire pile crown that the other end connects is characterized in that installing on the ground clamp induced voltage warning device.
2, according to the said induction prevising grounding wire of claim 1, it is characterized in that described cable passes insulation extension sleeve action bars after, at its most advanced and sophisticated ground clamp that connects, at its terminal ground wire pile crown that connects.
3, according to the said induction prevising grounding wire of claim 2, its feature is installed cylinder at the end of described insulation extension sleeve action bars by connecting plate, and the Mo Duan Chan of cable is on the axle of cylinder, and other has one section cable, the one end links to each other with connecting plate, and the other end connects the ground wire pile crown.
CN200920011146U 2009-03-06 2009-03-06 Prediction type sensing ground wire Expired - Lifetime CN201387943Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920011146U CN201387943Y (en) 2009-03-06 2009-03-06 Prediction type sensing ground wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920011146U CN201387943Y (en) 2009-03-06 2009-03-06 Prediction type sensing ground wire

Publications (1)

Publication Number Publication Date
CN201387943Y true CN201387943Y (en) 2010-01-20

Family

ID=41580485

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200920011146U Expired - Lifetime CN201387943Y (en) 2009-03-06 2009-03-06 Prediction type sensing ground wire

Country Status (1)

Country Link
CN (1) CN201387943Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103066526A (en) * 2012-12-07 2013-04-24 河南省电力公司洛阳供电公司 Grounding wire method applied to high-tension transmission line and separated type grounding tool
CN103683500A (en) * 2013-12-01 2014-03-26 国家电网公司 Substation temporary ground unlocking-locking control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103066526A (en) * 2012-12-07 2013-04-24 河南省电力公司洛阳供电公司 Grounding wire method applied to high-tension transmission line and separated type grounding tool
CN103066526B (en) * 2012-12-07 2017-11-14 河南省电力公司洛阳供电公司 A kind of ground connection line method and separated earthing instrument for ultra-high-tension power transmission line
CN103683500A (en) * 2013-12-01 2014-03-26 国家电网公司 Substation temporary ground unlocking-locking control system

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: STATE ELECTRIC NET CROP.

Effective date: 20121009

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20121009

Address after: 124010 No. 5, main street, Xinglongtai District, Liaoning, Panjin

Patentee after: Liaoning Electric Power Corporation Panjin Power Supply Corporation

Patentee after: State Grid Corporation of China

Address before: 124010 No. 5, main street, Xinglongtai District, Liaoning, Panjin

Patentee before: Liaoning Electric Power Corporation Panjin Power Supply Corporation

CX01 Expiry of patent term

Granted publication date: 20100120

CX01 Expiry of patent term