CN207424077U - 10kV aerial lift device with insulating arm for live working Leakage Current monitoring devices - Google Patents
10kV aerial lift device with insulating arm for live working Leakage Current monitoring devices Download PDFInfo
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- CN207424077U CN207424077U CN201721336180.6U CN201721336180U CN207424077U CN 207424077 U CN207424077 U CN 207424077U CN 201721336180 U CN201721336180 U CN 201721336180U CN 207424077 U CN207424077 U CN 207424077U
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Abstract
The utility model discloses a kind of 10kV aerial lift device with insulating arm for live working Leakage Current monitoring device, including taking electrical component, conductor cable and Leakage Current detector, wherein, electrical component is taken to contact with each other with insulation arm, for taking the Leakage Current for flowing through insulation arm, conductor cable connection takes electrical component and Leakage Current detector.The apparatus structure is simple, solves and implements the practical problem that distribution network live line work cannot monitor the Leakage Current of circuit vehicle (the earth) in real time for a long time.
Description
Technical field
The embodiment of the utility model is related to a kind of 10kV aerial lift device with insulating arm for live working Leakage Current monitoring device.
Background technology
Nearly ten years, with the continuous promotion of China's national power, the people and vast Electricity customers are to current reliable power supply
Demand it is unprecedented soaring, for the moment have a power failure even can cause heavy economic losses and social influence, based on case above, livewire work
Because can be greatly decreased power failure range, power off time and save power supply family when, improve power supply reliability the advantages that rapidly sent out
Exhibition in addition develop into current 10kV distributions maintenance repair, defect elimination, client connect electricity, tear old core force open, 2014, China
South electric network Co., Ltd has issued 37 livewire work projects, wherein (insulating glove is made using overhead insulation bucket arm vehicle
Industry method) carry out just have 20, account for the 54% of entire events in operation storehouse, however every utilize the progress operation of overhead insulation bucket arm vehicle
The discharge current of alive circuit over the ground must just be paid close attention to the moment, this contacts directly personnel, passengers inside the car or vehicle under bar
Whether ground forms the safeguard that step voltage jeopardizes on-site personnel, however substantially real in current domestic charged specialty
During applying industry, method or relevant operation experience that basic missing Leakage Current monitors in real time, meanwhile, on July 3rd, 2015,
China Nanfang Grid Co., Ltd has issued new edition《China Nanfang Grid Co., Ltd's electric power safety working regulation》,
Wherein 11.8.3 is provided：(Live working Aerial Device) insulation arm effective length should be greater than the regulation of table 12, and should install and let out in its lower end
Reveal current monitor.In view of Yi Shang regulatory requirements and objective reality need, a kind of livewire work all the period of time Leakage Current is designed
Monitoring device is necessary.
Utility model content
The purpose of this utility model is that for drawbacks described above of the prior art, a kind of 10kV live line work insulatings are provided
Bucket arm vehicle Leakage Current monitoring device, it is simple in structure, solve for a long time implement distribution network live line work cannot be to line road-vehicle
The practical problem that the Leakage Current of (the earth) is monitored in real time.
To realize above-mentioned purpose of utility model, the utility model employs following technical solution：A kind of 10kV livewire work
Aerial lift device with insulated arm Leakage Current monitoring device, including taking electrical component, conductor cable and Leakage Current detector, wherein, take electricity
Component contacts with each other with insulation arm, and for taking the Leakage Current for flowing through insulation arm, conductor cable connection takes electrical component and leakage electricity
Flow detector.
In addition, the utility model also provides following attached technical scheme：
Electrical component is taken to include pedestal, rotary shaft electric conductor and telescopic electric conductor, wherein, pedestal is by insulating materials system
Into, and be fixedly mounted on metal arm；Rotary shaft electric conductor is fixedly mounted on pedestal, is had there are two electrode, one of them
Electrode circle rotation and can be electrically connected with telescopic electric conductor, another electrode is electrically connected with conductor cable；Telescopic conduction
Body contacts with each other with insulation arm.
Conductor cable is arranged in drum, and drum is mounted on the panel of insulation arm rotary shaft base one side.
Compared with the prior art, the device advantage of the utility model is：It, which has, takes electrical component, conductor cable and lets out
Reveal current detecting instrument, take electrical component and insulation arm contact, obtain the electric current revealed from insulation arm, then led by conductor cable
Leakage Current detector is flow to, which is data collection and measuring cell；The present apparatus is simple in structure, convenient material drawing, most heavy
Want be solve livewire work industry at home initiate successfully installed on straight arm extending type aerial lift device with insulated arm Leakage Current monitoring
The practical experience of instrument, meanwhile, when Leakage Current is unsatisfactory for job requirements, alarm is carried out, terminates dangerous operation behaviour,
Operating personnel is reminded to depart from charged place, prevents the unsafe incidents caused by discharge current is excessive, matches south electric network safety
Safety requirements.
Description of the drawings
In order to illustrate more clearly of the technical solution of the utility model embodiment, embodiment or correlation technique will be retouched below
Attached drawing is briefly described needed in stating, it should be apparent that, it is new that the accompanying drawings in the following description merely relates to this practicality
Some embodiments of type, are not limitation of the utility model.
Fig. 1 is the structure diagram for taking electrical component of the utility model preferred embodiment.
Fig. 2 is the scheme of installation for taking electrical component, drum and conductor cable.
Specific embodiment
In order to be more clearly understood that the above-mentioned purpose of the utility model, feature and advantage, below in conjunction with the accompanying drawings and have
Body embodiment makees technical solutions of the utility model further nonrestrictive detailed description.
See Fig. 1 and Fig. 2：
The 10kV aerial lift device with insulating arm for live working Leakage Currents monitoring device of the present embodiment mainly include take electrical component 100,
Conductor cable 200 and Leakage Current detector (not shown), it is therein to take electrical component for obtaining its leakage from insulation arm
Electric current, conductor cable are used to electric current being guided to Leakage Current detector, and Leakage Current detector is data collection and measurement member
Part.Its general principles is：Electrical component is taken to do mobile monitoring on insulation arm, is delivered current to by conductor cable under arm
End introduces Leakage Current detector, forms all the period of time digital independent.
Electrical component is taken to include pedestal 1, rotary shaft electric conductor 2 and telescopic electric conductor 3.Pedestal is by insulated nylon material system
Make, be screwed on the metal arm 300 of Live working Aerial Device.Rotary shaft electric conductor 2 is fixedly mounted on pedestal, this implementation
Rotary shaft electric conductor is reequiped by travel switch, and the shaft of travel switch is as input electrode, telescopic electric conductor and its electricity
Connection, one of contact of travel switch are electric with conductor cable as output electrode, the contact and the normally closed conjunction of shaft, while again
Connection.Telescopic electric conductor 3 is a metalwork with Telescopic, and spring realization may be employed in Telescopic, this is stretched
Contracting formula electric conductor be mounted on rotary shaft electric conductor on, can be rotated with its shaft, the telescopic electric conductor also with Live working Aerial Device
Insulation arm 400 be in contact.
The major function of electrical component is taken to be kept for all the period of time to insulation arm insulated part contact, i.e., no matter insulation arm does and stretches
Contracting movement or radial motion take electricity point close contact always, while insulation arm body will not be caused to damage.
Conductor cable is arranged in drum 4, is recycled inside drum using memory spring to releasing conductor cable, drum
It is placed on the panel of vehicle insulation arm rotary shaft base one side.Use conductor cable conducted electricity mainly for take electricity point cable is provided
It transfers, while man-hour rotation and circuit radial direction folding and unfolding action is carried out with work jibs, cable is avoided to touch other charged conductor wires
Cable, trees and barrier ensure the normal tense normal work of cable.
The Leakage Current monitor of the present embodiment is a kind of made in U.S.A exclusively in mutually exhausted to measure band in electrical wiring
Between the metal parts of edge or between electrical accessory and grounding body, pass through the full man-hour of its surrounding medium or insulating surface electric current
Instrument, the instrument can be assemblied in exposure (nature) environment, be the data collection and measuring cell of the utility model device.
2017, collaboration Southern Power Grid Company DianKeYuan in livewire work center carried out tests below and has carried out data point
Analysis, to check the accuracy of the device, that is, is analyzed as follows：
Table 1：When insulation arm stretches out 1.2m, upper arm+oil pipe is over the ground (vehicle)
Table 2：Insulation arm is stretched out to be grounded at 1.2m, and upper arm+oil pipe is over the ground
What it is because of standard amperemeters detection is in face of earth-current, and what Leakage Current monitor detected is point to earth-current.According to
Test data, the first test method phase difference data are about 7 times, and second of test method phase difference data is about 6 times,
So preliminary analysis is drawn a conclusion：According to the rise of test voltage, Leakage Current synchronously rises and changes linearly, normalized current
Reading data between table and Leakage Current monitor are in fixed multiple proportion.
According to《Distribution line live working technology and management》Power distribution live-wire overhead insulation bucket arm vehicle electricity in guidance
Gas testing standard, insulated part presses voltage 20kV per 1M under 10kV voltage class, is no more than 500uA using Leakage Current to be qualified
Standard.According to circuit homework actual conditions, my office's distribution network live line work practical range is 10kV voltage class circuits.Synthesis is examined
Consider, for 10kV circuit homeworks, because outdoor work weather is changeable, need to stay with safety margin in actual job, finally take
It is tentative standard to contact directly vehicle Leakage Current in electrical body operation process to be no more than 100uA.
According to the data relationship between standard amperemeters and Leakage Current monitor, when standard amperemeters is 100uA, let out
It is about 15uA to reveal current monitoring instrument, that is, is then alarmed when the Leakage Current monitor upper limit being set to reach 15uA.
It is pointed out that above-mentioned preferred embodiment is only to illustrate the technical concepts and features of the utility model, purpose
It is the content for allowing person skilled in the art that can understand the utility model and implements according to this, can not this reality be limited with this
With new protection domain.All equivalent change or modifications made according to the utility model Spirit Essence, should all cover in this reality
Within new protection domain.
Claims (2)
1. a kind of 10kV aerial lift device with insulating arm for live working Leakage Current monitoring device, it is characterised in that：Including taking electrical component, conduction
Cable and Leakage Current detector, wherein, electrical component is taken to contact with each other with insulation arm, for taking the leakage electricity for flowing through insulation arm
Stream, conductor cable connection take electrical component and Leakage Current detector；It is described take electrical component include pedestal, rotary shaft electric conductor and
Telescopic electric conductor, pedestal are made of insulating materials, and are fixedly mounted on metal arm；Rotary shaft electric conductor is fixedly mounted on bottom
On seat, there are two electrode, one of electrode circle rotation and can be electrically connected, another electrode tool with telescopic electric conductor
It is electrically connected with conductor cable；Telescopic electric conductor contacts with each other with insulation arm.
2. 10kV aerial lift device with insulating arm for live working Leakage Current monitoring device according to claim 1, it is characterised in that：Institute
It states conductor cable to be arranged in drum, drum is mounted on the panel of insulation arm rotary shaft base one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721336180.6U CN207424077U (en) | 2017-10-18 | 2017-10-18 | 10kV aerial lift device with insulating arm for live working Leakage Current monitoring devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721336180.6U CN207424077U (en) | 2017-10-18 | 2017-10-18 | 10kV aerial lift device with insulating arm for live working Leakage Current monitoring devices |
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| Publication Number | Publication Date |
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| CN207424077U true CN207424077U (en) | 2018-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721336180.6U Active CN207424077U (en) | 2017-10-18 | 2017-10-18 | 10kV aerial lift device with insulating arm for live working Leakage Current monitoring devices |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727916A (en) * | 2017-10-18 | 2018-02-23 | 广西电网有限责任公司南宁供电局 | 10kV aerial lift device with insulating arm for live working Leakage Current monitoring devices |
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2017
- 2017-10-18 CN CN201721336180.6U patent/CN207424077U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727916A (en) * | 2017-10-18 | 2018-02-23 | 广西电网有限责任公司南宁供电局 | 10kV aerial lift device with insulating arm for live working Leakage Current monitoring devices |
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