CN108155501A - 10KV outlet cables and overhead transmission line lap works rod-type arc-extinction device - Google Patents

10KV outlet cables and overhead transmission line lap works rod-type arc-extinction device Download PDF

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Publication number
CN108155501A
CN108155501A CN201810150698.3A CN201810150698A CN108155501A CN 108155501 A CN108155501 A CN 108155501A CN 201810150698 A CN201810150698 A CN 201810150698A CN 108155501 A CN108155501 A CN 108155501A
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CN
China
Prior art keywords
insulating bar
type
overhead transmission
transmission line
rod
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Granted
Application number
CN201810150698.3A
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Chinese (zh)
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CN108155501B (en
Inventor
钱忠
沈阳
樊子晖
余松蓉
庆尧
董志文
宁科
谈翔鹤
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State Grid Shanghai Electric Power Co Ltd
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State Grid Shanghai Electric Power Co Ltd
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Priority to CN201810150698.3A priority Critical patent/CN108155501B/en
Publication of CN108155501A publication Critical patent/CN108155501A/en
Application granted granted Critical
Publication of CN108155501B publication Critical patent/CN108155501B/en
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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/6608Structural association with built-in electrical component with built-in single component
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00Coupling parts supported only by co-operation with counterpart
    • H01R31/06Intermediate parts for linking two coupling parts, e.g. adapter
    • H01R31/065Intermediate parts for linking two coupling parts, e.g. adapter with built-in electric apparatus
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/14Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables

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  • Suspension Of Electric Lines Or Cables (AREA)

Abstract

10KV outlet cables and overhead transmission line lap works rod-type arc-extinction device, including insulating bar, socket is provided with damping pressure spring at the active section of the insulating bar at an upper portion thereof, the damping pressure spring is connect again with circlip type collet, and the circlip type collet then gripped with 10KV outlet cable circuits after by circuit communication;Transverse type is provided with connecting rod on shaft near the active section of insulating bar at an upper portion thereof, bridging line device is mounted in the connecting rod, the lower part of bridging line device is connect again with one end of drainage thread;Axis is bolted with connecting wire clamp connection in the other end of drainage thread, and connects wire clamp and connect again with cable connection ear, and current path sequence of the entire arc-extinction device in electrical connection is:10KV outlet cables, damping pressure spring, the active section on insulating bar top, the connecting rod of transverse type setting, bridging line device, drainage thread, are bolted axis, connection wire clamp, cable connection ear at circlip type collet.

Description

10KV outlet cables and overhead transmission line lap works rod-type arc-extinction device
Technical field
The present invention relates to livewire work fields more particularly to a kind of 10KV outlet cables that are applied to make with overhead transmission line overlap joint The rod-type arc-extinction device of industry.
Background technology
At present, as the steady progress that country integrally builds, the development of all trades and professions and normal operation are all be unable to do without to electricity The demand of power, therefore the demand of the guarantee and power grid security to electric power is constantly enhancing, and in the world-class distribution of current construction Under the overall situation of net, livewire work is particularly important.
Since in city power distribution circuit, pure cable and pure overhead line circuit are less, in order to avoid traffic road junction, important build It builds or design planning needs, most joint line power supply mode using cable and overhead line, therefore, electrification tears open, takes leap Cable accounts for daily livewire work larger specific gravity with the work of overhead transmission line joining seam.
When carrying out 10KV outlet cables with overhead transmission line lap works, since the 10kV overhead transmission lines overlapped are in just Normal working condition, as electriferous state, and the 10kV cables that need to generally overlap, length are longer, capacitance is larger, therefore is overlapping When due to overhead transmission line electrification and cable capacitance is larger, if not taking ancillary method that can generate great capacitance during overlap joint Electric current so as to phenomenon of arc discharge occur, has threatened the safety of livewire work operating personnel.Therefore extinguishing arc can be used in sessions Device, it is therefore an objective to reduce the operation electric current for setting up bypass.
Traditional arc-extinction device can totally be divided into following several under the prior art:Straight hook type Simple hook, manually control disappear Arc device (is restricted) including manual operation, and insulating bar is unidirectionally fastenedly connected insulating bar and other ancillary equipments, specifically such as Under:
1. U-shaped structure is presented in straight hook type Simple hook overall construction, and straight hook overall length is longer at back bending, this straight hook Its overall flexibility of structures shape is insufficient, when carrying out livewire work, the comparatively dense especially top cable space if conducting wire is arranged Need to will just be linked up with when insufficient, in operating process it is laterally disposed could complete to connect work with conducting wire, but because hook and with rear portion it is whole Body operating lever is integrated type, so just need to be horizontal by whole device, cause greatly operating difficulties;
2. control arc arrester (restricting including manual operation) manually, is roughly divided into three parts:Closing insulation explosion chamber, simple list The manual disconnecting link of knife and manual operation drawstring.Entire jumper part-structure is simple, and external label the folding condition of disconnecting link, but sees Less than the real working condition of internal disconnecting link, determined so all needing to open equipment using the preceding correctness to ensure operation every time Disconnecting link initial position, increases workload, considerably increases the working time, and jumper outer logo is very under dark surrounds Hardly possible identification, indirect cause safety to decline, threaten the safety of operating personnel.
3. insulating bar, generally stainless steel, top is rigid connection with hook connection mode, is had no any slow Flushing device, no buffering leeway, causes entire connection system with meeting certain mechanical strength but exist in actual mechanical process It overexerts and so that conducting wire generates bounce or swings, cause phase spacing insufficient, there are some potential safety problemss, such as a whole set of Tool by long-term use, if insulating bar is detached with upper hook because of external environmental factor in the course of work, it will cause There is greatly security risk in safety accident.
4. unidirectional be fastenedly connected insulating bar, a whole set of arc-extinction device across cable connection ear with being in direct contact device.It is unidirectional tight Be solidly connected insulating bar connection by adjusting connection hub cone tightness in a conventional manner clamping cables connecting ear homalocephalus or There is apparent deficiency in the connecting portion on transition bracket, this mode, the range that on the one hand it is applicable in is according to old-fashioned cable Model, which is set in, has significant limitation today that cable power transmission mode develops rapidly, secondly it can only one direction clamping cables draw Line can not accomplish all position locked, and there is the hidden danger that cable comes off from side, greatly compromise the safety of operating personnel Property.And jointing position excessively simply leads to that contact area is relatively small between cable tail and arc-extinction device, directly leads Current-carrying capacity is caused to reduce, while increases the contact resistance of device and cable tail junction, it is existing that fever is will appear in the course of work As when external environmental condition is not suitable for, there are serious security risks.
In conclusion arc-extinction device old under the prior art existing serious design defect on hardware facility, with Tentatively to appear during past distribution uninterrupted operation, serious security risk is will appear after being restricted by environmental factor, And the versatility of operating efficiency and device in itself is seriously affected since traditional handicraft is coarse.
Invention content
To solve the above-mentioned problems, the present invention provides 10KV outlet cables and overhead transmission line lap works rod-type extinguishing arc Device adapts to the overhead transmission line nowadays developed rapidly and mutually relies on cooperated power supply mode, and can solve existing old with cable The many disadvantages problem of technology arc-extinction device, 10KV outlet cables of the invention are filled with overhead transmission line lap works rod-type extinguishing arc It puts, concrete structure is as described below:
10KV outlet cables and overhead transmission line lap works rod-type arc-extinction device, including insulating bar, feature exists In:
At the active section of the insulating bar at an upper portion thereof socket be provided with a damping pressure spring, the damping pressure spring again with One circlip type collet connects, and the circlip type collet then gripped with 10KV outlet cable circuits after by circuit communication;
Transverse type is provided with a connecting rod on shaft near the active section of the insulating bar at an upper portion thereof, It is mounted with a bridging line device in the connecting rod, the one end of the lower part of bridging line device again with a drainage thread is connect;
The other end of the drainage thread is bolted axis and connect wire clamp connection with one, and it is electric with one again to connect wire clamp Cable connecting ear connects, and current path sequence of the entire arc-extinction device in electrical connection is:10KV outlet cables, circlip type folder Head, damping pressure spring, the active section on insulating bar top, the connecting rod of transverse type setting, bridging line device, drainage thread, bolt Connecting shaft, connection wire clamp, cable connection ear.
10KV outlet cables according to the present invention and overhead transmission line lap works rod-type arc-extinction device, which is characterized in that The length of the insulating bar is 1.5m, wherein, the active section on top is 20cm, the insulating segment at middle part is 70cm, rear portion Handling section be 60cm.
In terms of material selection, the material of more lightweight should be selected, while also needs to keep the mechanical strength of insulating bar.
10KV outlet cables according to the present invention and overhead transmission line lap works rod-type arc-extinction device, which is characterized in that The damping pressure spring energy free bend angle, and a safety rope is internally provided in damping pressure spring, which is connected to The active section on insulating bar top and circlip type collet.
Damping pressure spring energy free bend angle can easily be hung collet as operating personnel in operating condition by limited time On conducting wire or in ground loop;Cushioning effect is played in connection, reduces the shaking of conducting wire, it is ensured that phase spacing safety, and Safety rope has two big effects:First, position-limiting action, when connecting wire, spring is extended to can be by safety rope about during certain length Beam, the power that operating personnel applies at this time can be transferred on safety rope so that connection can be smooth, secondly, when accident occurs for compression spring When bending or fracture, it can play a protective role, preventing collet from coming off leads to falling object from high altitude.
10KV outlet cables according to the present invention and overhead transmission line lap works rod-type arc-extinction device, which is characterized in that Copper bar is provided in the connecting rod, which connect with the shaft near the active section on insulating bar top, and copper bar is made For circlip type collet to the electrical fitting of this segment distance of connecting rod, the through-current capability of copper bar is 20A.
In actual job, size of current does not exceed 5A, complies fully with actual job demand.
10KV outlet cables according to the present invention and overhead transmission line lap works rod-type arc-extinction device, which is characterized in that Vacuum interrupter is provided in the bridging line device, the specified breaking current of bridging line device is 300A, and rated voltage is 15kV, and bridging line utensil has and load is carried out to high-voltage fence circuit cut-offs and function that load continues.
Bridging line utensil has carries out the function that load is cut-off and load continues to high-voltage fence circuit, is taken using cable Connect inicdental bypath, it would be desirable to which the line short of repair carries out high-voltage line section in the case where not influencing circuit normal transmission Maintenance or more exchange device.Jumper has vacuum interrupter, can safely and effectively be eliminated electric arc when switching circuit, it is ensured that circuit Equipment is not by the personal safety of arc erosion and guarantee livewire work personnel.
10KV outlet cables according to the present invention and overhead transmission line lap works rod-type arc-extinction device, which is characterized in that It is specially an annealed copper wire for being enclosed with sheath to the drainage thread, and the sectional area of drainage thread is 16mm2, draining line length is 2.5~2.7m.
16mm2Drainage cross-sectional area size can guarantee enough current-carrying capacities, it is ensured that by-pass current can be carried, in addition, 5 layers are wrapped up using the polyvinyl chloride of different colours in drainage thread outer layer, plays protection and insulating effect, when seeing red color layer, Then illustrate that insulation will be destroyed, need to be handled in time.
Obtained using the 10KV outlet cables of the present invention with overhead transmission line lap works with rod-type arc-extinction device is had as follows Beneficial effect:
1. the 10KV outlet cables of the present invention are suitable for various electrifications with overhead transmission line lap works rod-type arc-extinction device Operation complicated project is unlocked as electrification is connect across cable and the work of overhead line joining seam, electrification across cable and overhead line joining seam work Make, applicability is wide.
2. the 10KV outlet cables of the present invention compensate for the prior art with overhead transmission line lap works with rod-type arc-extinction device Shortcoming, package unit be easy to storage, easy to carry, reasonable design, convenient for operating personnel high-altitude application, use, be Operating personnel provides more convenient, quick, safe operating type.
Description of the drawings
Fig. 1 is that the 10KV outlet cables of the present invention and the concrete structure of overhead transmission line lap works rod-type arc-extinction device show It is intended to.
In figure:1- insulating bars, 2- damping pressure springs, 3- circlip type collets, 4- connecting rods, 4a- copper bars, 5- bridging lines Device, 6- drainage threads, 7- are bolted axis, 8- connection wire clamps, 9- cable connection ears.
Specific embodiment
Disappear with reference to the accompanying drawings and examples to the 10KV outlet cables of the present invention with overhead transmission line lap works rod-type Arc device is further described.
Embodiment
As shown in Figure 1,10KV outlet cables and overhead transmission line lap works rod-type arc-extinction device, including insulating bar 1, at the active section of the insulating bar at an upper portion thereof socket be provided with a damping pressure spring 2, the damping pressure spring again with a circlip type Collet 3 connects, and the circlip type collet then gripped with 10KV outlet cable circuits after by circuit communication;
Transverse type is provided with a connecting rod 4, the company on shaft near the active section of insulating bar 1 at an upper portion thereof It is mounted with a bridging line device 5 on extension bar, the one end of the lower part of bridging line device again with a drainage thread 6 is connect;
The other end of drainage thread 6, which is bolted axis 7 and connect wire clamp 8 with one, to be connected, and connect wire clamp again with a cable Connecting ear 9 connects, and current path sequence of the entire arc-extinction device in electrical connection is:10KV outlet cables, circlip type collet, Damping pressure spring, the active section on insulating bar top, transverse type setting connecting rod, bridging line device, drainage thread, be bolted Axis, connection wire clamp, cable connection ear.
The length of insulating bar 1 is 1.5m, wherein, the active section on top is 20cm, the insulating segment at middle part be 70cm, after The handling section in portion is 60cm.
2 energy free bend angle of damping pressure spring, and a safety rope is internally provided in damping pressure spring, safety rope connection The active section on insulating bar 1 top and circlip type collet 3.
Damping pressure spring energy free bend angle can easily be hung collet as operating personnel in operating condition by limited time On conducting wire or in ground loop;Cushioning effect is played in connection, reduces the shaking of conducting wire, it is ensured that phase spacing safety, and Safety rope has two big effects:First, position-limiting action, when connecting wire, spring is extended to can be by safety rope about during certain length Beam, the power that operating personnel applies at this time can be transferred on safety rope so that connection can be smooth, secondly, when accident occurs for compression spring When bending or fracture, it can play a protective role, preventing collet from coming off leads to falling object from high altitude.
Copper bar 4a is provided in connecting rod 4, which connect with the shaft near the active section on 1 top of insulating bar, For copper bar as circlip type collet to the electrical fitting of this segment distance of connecting rod, the through-current capability of copper bar is 20A.
In actual job, size of current does not exceed 5A, complies fully with actual job demand.
It is provided with vacuum interrupter in bridging line device 5, the specified breaking current of bridging line device is 300A, rated voltage For 15kV, and bridging line utensil has and carries out the function that load is cut-off and load continues to high-voltage fence circuit.
Bridging line utensil has carries out the function that load is cut-off and load continues to high-voltage fence circuit, is taken using cable Connect inicdental bypath, it would be desirable to which the line short of repair carries out high-voltage line section in the case where not influencing circuit normal transmission Maintenance or more exchange device.Jumper has vacuum interrupter, can safely and effectively be eliminated electric arc when switching circuit, it is ensured that circuit Equipment is not by the personal safety of arc erosion and guarantee livewire work personnel.
It is specially an annealed copper wire for being enclosed with sheath to drainage thread 6, and the sectional area of drainage thread is 16mm2, drain line length For 2.5~2.7m (being 2.6m in the present embodiment).
16mm2Drainage cross-sectional area size can guarantee enough current-carrying capacities, it is ensured that by-pass current can be carried, in addition, 5 layers are wrapped up using the polyvinyl chloride of different colours in drainage thread outer layer, plays protection and insulating effect, when seeing red color layer, Then illustrate that insulation will be destroyed, need to be handled in time.
The 10KV outlet cables of the present invention are suitable for various electrifications with overhead transmission line lap works rod-type arc-extinction device and make Industry complicated project is unlocked as electrification is connect across cable and the work of overhead line joining seam, electrification across cable and the work of overhead line joining seam, Applicability is wide;Part that the present invention makes up for the shortcomings of the prior art, package unit are easy to storage, easy to carry, reasonable design, just In operating personnel high-altitude application, use, more convenient, quick, safe operating type is provided for operating personnel.
The 10KV outlet cables of the present invention go out with overhead transmission line lap works rod-type arc-extinction device suitable for various 10KV Line cable and overhead transmission line lap works field.

Claims (6)

1.10KV outlet cables and overhead transmission line lap works rod-type arc-extinction device, including insulating bar (1), feature exists In:
Socket is provided with a damping pressure spring (2) at the active section of the insulating bar (1) at an upper portion thereof, and the damping pressure spring is again Connect with a circlip type collet (3), and the circlip type collet then gripped with 10KV outlet cable circuits after by circuit communication;
Transverse type is provided with a connecting rod on shaft near the active section of the insulating bar (1) at an upper portion thereof (4), a bridging line device (5) is mounted in the connecting rod, the lower part of bridging line device connects again with one end of a drainage thread (6) It connects;
The other end of the drainage thread (6) is bolted axis (7) and connect wire clamp (8) connection with one, and connects wire clamp again It is connect with a cable connection ear (9), current path sequence of the entire arc-extinction device in electrical connection is:10KV outlet cables, Circlip type collet, damping pressure spring, the active section on insulating bar top, the connecting rod of transverse type setting, bridging line device, drainage Line is bolted axis, connection wire clamp, cable connection ear.
2. 10KV outlet cables as described in claim 1 and overhead transmission line lap works rod-type arc-extinction device, feature exist In, the length of the insulating bar (1) is 1.5m, wherein, the active section on top is 20cm, the insulating segment at middle part is 70cm, rear portion handling section be 60cm.
3. 10KV outlet cables as described in claim 1 and overhead transmission line lap works rod-type arc-extinction device, feature exist In, the damping pressure spring (2) energy free bend angle, and a safety rope is internally provided in damping pressure spring, the safety rope It is connected to the active section on insulating bar (1) top and circlip type collet (3).
4. 10KV outlet cables as described in claim 1 and overhead transmission line lap works rod-type arc-extinction device, feature exist In the connecting rod (4) is interior to be provided with copper bar (4a), the copper bar and the bar near the active section on insulating bar (1) top Body connects, and for copper bar as circlip type collet to the electrical fitting of this segment distance of connecting rod, the through-current capability of copper bar is 20A.
5. 10KV outlet cables as described in claim 1 and overhead transmission line lap works rod-type arc-extinction device, feature exist In the bridging line device (5) is interior to be provided with vacuum interrupter, and the specified breaking current of bridging line device is 300A, specified Voltage is 15kV, and bridging line utensil has and carries out the function that load is cut-off and load continues to high-voltage fence circuit.
6. 10KV outlet cables as described in claim 1 and overhead transmission line lap works rod-type arc-extinction device, feature exist In it is specially an annealed copper wire for being enclosed with sheath to the drainage thread (6), and the sectional area of drainage thread is 16mm2, drain line length It spends for 2.5~2.7m.
CN201810150698.3A 2018-02-13 2018-02-13 Rod type arc suppression device for lap joint operation of 10KV outgoing cable and overhead line Active CN108155501B (en)

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CN201810150698.3A CN108155501B (en) 2018-02-13 2018-02-13 Rod type arc suppression device for lap joint operation of 10KV outgoing cable and overhead line

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN109004635A (en) * 2018-07-18 2018-12-14 国网辽宁省电力有限公司盘锦供电公司 Spring opens and closes arc arrester
CN110649508A (en) * 2019-10-23 2020-01-03 国网辽宁省电力有限公司辽阳供电公司 Charged arc extinction and current diversion combiner
CN112670727A (en) * 2020-12-28 2021-04-16 国网宁夏电力有限公司石嘴山供电公司 10kV live working overlap arc extinction device
CN114069477A (en) * 2021-11-19 2022-02-18 国网山东省电力公司莱芜供电公司 Complete device for fixing arc suppression switch and working method thereof
CN115241800A (en) * 2022-07-22 2022-10-25 国网福建省电力有限公司南安市供电公司 10kV live working bypass flexible cable suspension device and installation method thereof

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109004635A (en) * 2018-07-18 2018-12-14 国网辽宁省电力有限公司盘锦供电公司 Spring opens and closes arc arrester
CN109004635B (en) * 2018-07-18 2024-05-17 国网辽宁省电力有限公司盘锦供电公司 Spring switching arc extinguisher
CN110649508A (en) * 2019-10-23 2020-01-03 国网辽宁省电力有限公司辽阳供电公司 Charged arc extinction and current diversion combiner
CN112670727A (en) * 2020-12-28 2021-04-16 国网宁夏电力有限公司石嘴山供电公司 10kV live working overlap arc extinction device
CN112670727B (en) * 2020-12-28 2024-04-26 国网宁夏电力有限公司石嘴山供电公司 10KV live working overlap joint arc suppression device
CN114069477A (en) * 2021-11-19 2022-02-18 国网山东省电力公司莱芜供电公司 Complete device for fixing arc suppression switch and working method thereof
CN114069477B (en) * 2021-11-19 2024-02-20 国网山东省电力公司莱芜供电公司 Complete device for fixing arc suppression switch and working method thereof
CN115241800A (en) * 2022-07-22 2022-10-25 国网福建省电力有限公司南安市供电公司 10kV live working bypass flexible cable suspension device and installation method thereof
CN115241800B (en) * 2022-07-22 2024-04-30 国网福建省电力有限公司南安市供电公司 10KV live working bypass flexible cable suspension device and installation method thereof

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