CN107546646A - On-load changes the specific purpose tool and method of fuse switch - Google Patents
On-load changes the specific purpose tool and method of fuse switch Download PDFInfo
- Publication number
- CN107546646A CN107546646A CN201710906363.5A CN201710906363A CN107546646A CN 107546646 A CN107546646 A CN 107546646A CN 201710906363 A CN201710906363 A CN 201710906363A CN 107546646 A CN107546646 A CN 107546646A
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- Prior art keywords
- insulation
- checkpost
- cross
- fuse switch
- arm
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Abstract
The invention discloses the specific purpose tool and method that a kind of on-load changes fuse switch, instrument includes T connector and is removably connected to the cross-arm connection component of T connector bar portion and is removably connected to the external insulation strut at T connector head both ends, insulation lead wire is equipped with outside two external insulation struts, the outer end of one insulation lead wire is provided with Wiring nose, the outer end of another insulation lead wire is provided with wire clamp, and conductor is equipped with the head of T connector and external insulation strut.The on-load that method carries out fuse switch using specific purpose tool is changed, and is comprised the following steps：Operating personnel steps on bar insulation masking electrical body and ground connection thing；First checkpost is blocked to a side of cross-arm, the second checkpost lives another side of cross-arm, completes to fix；Wiring nose outside insulation lead wire is connected on fuse switch, and it is complete by wire clamp overlap joint drainage thread；Change failure fuse switch；Remove after insulation lead wire is removed and remove instrument from cross-arm；Remove masking device.
Description
Technical field
The invention belongs to livewire work field, more particularly to a kind of on-load change fuse switch specific purpose tool and
Method.
Background technology
With the development of electric utility, electricity consumption reliability and good service seem more and more important, and livewire work is in electricity
Proportion in power production increasingly increases, and the particularly replacing of accident maintenance and power equipment is safeguarded, yet with electrical equipment
Natural aging and the influence of irresistible external force, usually meet fuse switch failure or damage, therefore in routine work
Need teams and groups to carry out regular maintenance, equipment is changed.And change that fuse switch work flow is cumbersome, and insulation measures must
It must set in place, need to enter insulation lead wire installed in failure fuse switch both ends during traditional work, before replacing
Row drainage, is then checked and is changed to fuse switch again.Because insulation lead wire is not easy to fix in operation, cause
Time-consuming for whole operation process, and operating personnel's labor intensity is big, causes replacing fuse switch difficult.
Inventor is exhausted before the statistics post analysis for carrying out related data find traditional on-load replacing fuse switch
Edge masking preparation, insulation lead wire is installed and detects through-flow situation and removes insulation lead wire, fixed support and insulation screening
Cover the average spent time sum of three steps of measure and account for the whole flow process average operation time 74.5%.And born using conventional method band
It is averagely time-consuming 81.25 minutes that lotus changes single-phase fault fuse switch, if occur multiphase fuse switch break down or
When landform where person's circuit is bad, taking will be longer.Operating personnel will appear from the situation of physical fatigue, and the dangerous of operation also will
Greatly increase, also the failure fuse switch activity duration is changed without a kind of specific purpose tool to reduce on-load at present, with drop
The low activity duration, operating personnel's labor intensity is reduced, improve live-working safety and overhaul efficiency.
The content of the invention
It can shorten the activity duration it is an object of the invention to provide one kind, reduce operating personnel's labor intensity, raising work
Make the specific purpose tool and method of the on-load replacing fuse switch of efficiency and job security.
The invention provides the specific purpose tool that a kind of on-load changes fuse switch, and it includes T connector and removable
Unload the cross-arm connection component for being connected to T connector bar portion and be removably connected to the external insulation strut at T connector head both ends,
It is equipped with insulation lead wire outside two external insulation struts, the outer end of an insulation lead wire is provided with Wiring nose, another insulation lead wire
Outer end is provided with wire clamp, and conductor is equipped with the head of T connector and external insulation strut.
In a specific embodiment, the cross-arm connection component is made to include the first checkpost, connecting rod, the second checkpost and endure
Bar, the first checkpost are that L-type card includes horizontal segment and vertical section, and one end of horizontal segment axial centre is set provided with screwed hole, the other end
There is unthreaded hole, vertical section is U-shaped section that two side edge lengths do not wait, and U-shaped section of A/F is matched with the thickness of the side of cross-arm one；The
Two checkposts include card main body and insulation sleeve, are provided with spring in insulation sleeve, and one end interference of connecting rod is connected to that unthreaded hole is interior, the other end is stretched
Enter in insulation sleeve, tappet is T-bar, and the head of tappet is connected in insulation sleeve with spring, bar portion is stretched out outside insulation sleeve, promotes the
Two checkposts make tappet remains stationary simultaneously, and spring is pressurized, and with the second checkpost relative motion occurs for the first checkpost.
In order to improve the reliability being connected with cross-arm, screwed hole is provided with the bottom of the vertical section, for installation locking
Bolt.
In a specific embodiment, the epimere for making the card main body is fang platform, lower end is bucking ladder, and the center of fang platform is set
There is the through hole passed through for the connecting rod, the one side of bucking ladder is provided with the bayonet socket for being matched with cross arm lateral side.
In a specific embodiment, the head of the T connector includes insulating coating and conductive core, conductive core
Axial both ends are unthreaded hole, middle part is internal thread hole, and the bar portion of T connector sets threaded connecting rod and described first by end
Checkpost threaded connection is integrated.
In a specific embodiment, the external insulation strut includes insulation shell and conductive core, and one end of conductive core is
External screw thread head, the other end assigned in the internal thread hole are the screwed hole for being threadedly coupled with the insulation lead wire.
In order to improve insulation effect, insulation sleeve is provided with the junction of the external insulation strut and the insulation lead wire.
In a specific embodiment, the wire clamp is pressed from both sides for copper cash, including geometrical clamp and activity are pressed from both sides, and geometrical clamp is C-type clamp,
The bottom of C-type clamp is provided with screwed hole, activity folder include through screwed hole screw rod and be connected to screw tip and be located in C-type clamp
Movable block, the bottom of screw rod are provided with connection handle easy to operation, and the side wall of geometrical clamp is externally provided with for being connected with insulation lead wire
Screw.
In order to ensure insulating properties, make the insulation shell, insulation sleeve, insulating coating, connecting rod and cross-arm connection component
Material is epoxy resin.
Present invention also offers a kind of method that on-load changes fuse switch, this method utilizes above-mentioned specific purpose tool
The on-load for carrying out fuse switch is changed, and this method comprises the following steps：
(1) insulation masking electrical body and ground connection thing after operating personnel is stepped at bar to cross-arm；
(2) the first checkpost is blocked to the vertical edge of cross-arm, and by holding out against cross-arm, movement second through the bolt of screwed hole
Checkpost, holding tappet makes its remains stationary while controls to draw outside the second checkpost, and spring is pressurized, the second checkpost and the first checkpost
Open, make the horizontal sides of the second checkpost opening alignment cross-arm, then unclamp the second checkpost, recoil of spring makes the second checkpost block cross-arm
Horizontal sides, this instrument are fixed on cross-arm；
(3) Wiring nose outside insulation lead wire is connected on fuse switch, and it is complete by wire clamp overlap joint drainage thread；
(4) failure fuse switch is changed；
(5) remove after insulation lead wire is removed and remove the second checkpost and the first checkpost from cross-arm respectively, then remove screening
Cover measure.
The present invention carries out insulation masking after operating personnel steps on bar to place to be repaired, is connected after masking by cross-arm connection component
It is connected on corresponding cross-arm, then the Wiring nose outside insulation lead wire is connected on fuse switch, and is taken by wire clamp
Connect drainage thread and complete drainage, the on-load that next can carry out fuse switch is changed.When can effectively shorten operation
Between, reduce operating personnel labor intensity, improve operating efficiency and operational security.
Brief description of the drawings
Fig. 1 is the schematic cross-sectional view of one embodiment of the invention.
Fig. 2 is the assembly magnification diagram of T connector and cross-arm connection component in Fig. 1.
Fig. 3 is the enlarged diagram of the first checkpost in Fig. 2.
Fig. 4 is the enlarged diagram of the second checkpost in Fig. 2.
Fig. 5 is the enlarged diagram of Fig. 1 China and foreign countries insulation brace rod.
Fig. 6 is the side view enlarged diagram of wire clamp in Fig. 1.
Illustrate sequence number：
1-T connector, 2-connecting rod, 3-cross-arm connection component, 4-external insulation strut, 5-insulation lead wire, 6-
Wiring nose, 7-wire clamp, 8-insulation sleeve, 11-insulating coating, 12-conductive core, the 31-the first checkpost, 32-connecting rod, 33-
Second checkpost, 34-tappet, 35-spring, 41-insulation shell, 42-conductive core, 71-geometrical clamp, 72-activity folder, 73-spiral shell
Nail, 311-horizontal segment, 312-vertical section, 331-card main body, 332-insulation sleeve, 721-screw rod, 722-movable block,
723-connection handle.
Embodiment
As shown in figure 1, this on-load that the present embodiment provides changes the specific purpose tool of fuse switch, it includes T
Type joint 1, connecting rod 2, cross-arm connection component 3, external insulation strut 4, insulation lead wire 5, Wiring nose 6 and wire clamp 7；T connector
The both ends on head are connected with external insulation strut, insulation lead wire in turn, the outer end connection Wiring nose of side insulation lead wire, another
The outer end connection wire clamp of side insulation lead wire, the bar portion of T connector connect cross-arm connection component by connecting rod.
As shown in Fig. 2-4, the head of T connector 1 includes insulating coating 11 and conductive core 12, the axial direction of conductive core
Both ends are unthreaded hole, middle part is internal thread hole, and the bar portion of T connector is provided with axial center hole.One end of connecting rod 2 be polished end,
The other end is the end of thread.Cross-arm connection component 3 includes the first checkpost 31, connecting rod 32, the second checkpost 33 and tappet 34, the first checkpost
31 be that L-type card includes horizontal segment 311 and vertical section 312, and one end of horizontal segment axial centre is provided with light provided with screwed hole, the other end
Hole, vertical section are U-shaped section that two side edge lengths do not wait, and U-shaped section of A/F is matched with the thickness of the side of cross-arm one, and
The bottom of vertical section is provided with screwed hole, for installation locking bolt to improve and the horizontal connection reliability to side；Second checkpost 33
Including card main body 331 and insulation sleeve 332, the epimere of card main body 331 is square platform, lower end is bucking ladder, and the center of square platform is set
There is the through hole passed through for connecting rod, the one side of bucking ladder is provided with the bayonet socket for being matched with cross arm lateral side, bullet is provided with insulation sleeve 332
Spring 35, the compression travel of spring are more than twice of cross-arm width, one end interference of connecting rod 32 is connected in the unthreaded hole of the first checkpost,
The other end is stretched into insulation sleeve, and tappet is T-bar, and the head of tappet 34 is connected in insulation sleeve with spring, bar portion stretches out insulation
Set is outer, keeps tappet motionless, is pulled outwardly the second checkpost, and spring is pressurized, and with the second checkpost relative motion occurs for the first checkpost.
As shown in figure 5, external insulation strut 4 includes insulation shell 41 and conductive core 42, one end of conductive core is described to be matched with
External screw thread head, the other end of internal thread hole are the screwed hole for being threadedly coupled with insulation lead wire.In connection in external insulation
The junction of strut and insulation lead wire is provided with insulation sleeve 8 to improve insulation effect.
As shown in fig. 6, wire clamp 7 is designed as into copper cash folder, it includes geometrical clamp 71 and activity folder 72, and geometrical clamp is C-type clamp,
The bottom of C-type clamp is provided with screwed hole, activity folder 72 include through screwed hole screw rod 721 and be connected to screw tip and be located at c-type
Movable block 722 in folder, the bottom of screw rod are provided with connection handle 723 easy to operation, the side wall of geometrical clamp be externally provided with for it is exhausted
The screw 73 of edge drainage thread connection.
The present embodiment additionally provides a kind of method that on-load changes fuse switch, and this method is using above-mentioned special
The on-load that instrument carries out fuse switch is changed, and is comprised the following steps：
(1) insulation masking electrical body and ground connection thing after operating personnel is stepped at bar to cross-arm；
(2) the first checkpost is blocked to the vertical edge of cross-arm, and by holding out against cross-arm, movement second through the bolt of screwed hole
Checkpost, holding tappet makes its remains stationary while controls to draw outside the second checkpost, and spring is pressurized, the second checkpost and the first checkpost
Open, make the horizontal sides of the second checkpost opening alignment cross-arm, then unclamp the second checkpost, recoil of spring makes the second checkpost block cross-arm
Horizontal sides, this instrument are fixed on cross-arm；
(3) Wiring nose outside insulation lead wire is connected on fuse switch, and it is complete by wire clamp overlap joint drainage thread；
(4) failure fuse switch is changed；
(5) remove after insulation lead wire is removed and remove the second checkpost and the first checkpost from cross-arm respectively, then remove screening
Cover measure.
So by the utilization of the present embodiment, operating personnel, which need to be only stepped on after bar carries out insulation masking to place to be repaired, passes through horizontal stroke
Instrument is connected on corresponding cross-arm by load connection component, and the Wiring nose outside insulation lead wire then is connected into drop type fusing
On device, and drainage thread is overlapped by wire clamp and completes drainage, you can the on-load for carrying out fuse switch is changed.Can be effective
Shorten the activity duration, reduce operating personnel's labor intensity, improve operating efficiency and operational security.
Claims (10)
1. a kind of on-load changes the specific purpose tool of fuse switch, it is characterised in that：It includes T connector and detachably connected
It is connected to the cross-arm connection component of T connector bar portion and is removably connected to the external insulation strut at T connector head both ends, outside two
Insulation lead wire is equipped with outside insulation brace rod, the outer end of an insulation lead wire is provided with Wiring nose, the outer end of another insulation lead wire
Provided with wire clamp, conductor is equipped with the head of T connector and external insulation strut.
2. on-load according to claim 1 changes the specific purpose tool of fuse switch, it is characterised in that：The cross-arm
Connection component includes the first checkpost, connecting rod, the second checkpost and tappet, and the first checkpost is that L-type card includes horizontal segment and vertical section, water
One end of flat section axial centre is provided with screwed hole, the other end is provided with unthreaded hole, and vertical section is U-shaped section that two side edge lengths do not wait, U-shaped
The A/F of section is matched with the thickness of the side of cross-arm one；Second checkpost includes card main body and insulation sleeve, and bullet is provided with insulation sleeve
Spring, one end interference of connecting rod is connected in unthreaded hole, the other end is stretched into insulation sleeve, and tappet is T-bar, and the head of tappet is being insulated
It is connected in set with spring, outside bar portion stretching insulation sleeve, promotes the second checkpost to make tappet remains stationary simultaneously, spring is pressurized, and first
With the second checkpost relative motion occurs for checkpost.
3. on-load according to claim 2 changes the specific purpose tool of fuse switch, it is characterised in that：It is described vertical
The bottom of section is provided with screwed hole, for installation locking bolt.
4. on-load according to claim 2 changes the specific purpose tool of fuse switch, it is characterised in that：The card master
The epimere of body is fang platform, lower end is bucking ladder, and the center of fang platform, which is provided with, is used for the through hole that the connecting rod passes through, the side of bucking ladder
Face is provided with the bayonet socket for being matched with cross arm lateral side.
5. on-load according to claim 2 changes the specific purpose tool of fuse switch, it is characterised in that：It is described T-shaped
The head of joint includes insulating coating and conductive core, and the axial both ends of conductive core are unthreaded hole, middle part is internal thread hole, T-shaped
The bar portion of joint, which by end sets threaded connecting rod and is threadedly coupled with first checkpost, to be integrated.
6. on-load according to claim 5 changes the specific purpose tool of fuse switch, it is characterised in that：It is described outer exhausted
Edge strut includes insulation shell and conductive core, and one end of conductive core is that external screw thread head, the other end for being matched with the internal thread hole are
For the screwed hole being threadedly coupled with the insulation lead wire.
7. on-load according to claim 6 changes the specific purpose tool of fuse switch, it is characterised in that：It is described outer exhausted
The junction of edge strut and the insulation lead wire is provided with insulation sleeve.
8. on-load according to claim 1 changes the specific purpose tool of fuse switch, it is characterised in that：The wire clamp
Pressed from both sides for copper cash, including geometrical clamp and activity are pressed from both sides, geometrical clamp is C-type clamp, and the bottom of C-type clamp is provided with screwed hole, and activity folder includes wearing
Cross the screw rod of screwed hole and be connected to the movable block that screw tip is located in C-type clamp, the bottom of screw rod is provided with company easy to operation
Handle is connect, the side wall of geometrical clamp is externally provided with the screw for being connected with insulation lead wire.
9. on-load according to claim 7 changes the specific purpose tool of fuse switch, it is characterised in that：The insulation
Shell, insulation sleeve, insulating coating, the material of connecting rod and cross-arm connection component are epoxy resin.
10. a kind of method that on-load changes fuse switch, this method is carried out using the specific purpose tool described in claim 9
The on-load of fuse switch is changed, it is characterised in that：This method comprises the following steps：
(1) insulation masking electrical body and ground connection thing after operating personnel is stepped at bar to cross-arm；
(2) the first checkpost is blocked to the vertical edge of cross-arm, and by holding out against cross-arm, mobile second side through the bolt of screwed hole
Card, holding tappet makes its remains stationary while controls to draw outside the second checkpost, and spring is pressurized, and the second checkpost is opened with the first checkpost,
Make the horizontal sides of the second checkpost opening alignment cross-arm, then unclamp the second checkpost, recoil of spring makes the second checkpost block the water of cross-arm
Flat side, this instrument are fixed on cross-arm；
(3) Wiring nose outside insulation lead wire is connected on fuse switch, and it is complete by wire clamp overlap joint drainage thread；
(4) failure fuse switch is changed；
(5) remove after insulation lead wire is removed and remove the second checkpost and the first checkpost from cross-arm respectively, then remove masking and arrange
Apply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710906363.5A CN107546646B (en) | 2017-09-29 | 2017-09-29 | Special tool and method for replacing drop-out fuse under load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710906363.5A CN107546646B (en) | 2017-09-29 | 2017-09-29 | Special tool and method for replacing drop-out fuse under load |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107546646A true CN107546646A (en) | 2018-01-05 |
| CN107546646B CN107546646B (en) | 2023-04-11 |
Family
ID=60965062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710906363.5A Active CN107546646B (en) | 2017-09-29 | 2017-09-29 | Special tool and method for replacing drop-out fuse under load |
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| CN (1) | CN107546646B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565748A (en) * | 2018-04-17 | 2018-09-21 | 国网浙江桐庐县供电有限公司 | A kind of insulating mast assembly device for replacing fuse switch |
| CN109193464A (en) * | 2018-10-31 | 2019-01-11 | 国网四川省电力公司绵阳供电公司 | On-load replaces fuse switch and bypasses drainage device |
| CN111884123A (en) * | 2020-07-09 | 2020-11-03 | 国网天津市电力公司 | Load replacement protection device for drop-out fuse and live replacement method thereof |
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| CN108565748A (en) * | 2018-04-17 | 2018-09-21 | 国网浙江桐庐县供电有限公司 | A kind of insulating mast assembly device for replacing fuse switch |
| CN109193464A (en) * | 2018-10-31 | 2019-01-11 | 国网四川省电力公司绵阳供电公司 | On-load replaces fuse switch and bypasses drainage device |
| CN111884123A (en) * | 2020-07-09 | 2020-11-03 | 国网天津市电力公司 | Load replacement protection device for drop-out fuse and live replacement method thereof |
| CN111884123B (en) * | 2020-07-09 | 2021-09-21 | 国网天津市电力公司 | Load replacement protection device for drop-out fuse and live replacement method thereof |
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| Publication number | Publication date |
|---|---|
| CN107546646B (en) | 2023-04-11 |
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