CN108305812A - The novel dismountable low pressure isolation switch for changing safety plate - Google Patents
The novel dismountable low pressure isolation switch for changing safety plate Download PDFInfo
- Publication number
- CN108305812A CN108305812A CN201810103115.1A CN201810103115A CN108305812A CN 108305812 A CN108305812 A CN 108305812A CN 201810103115 A CN201810103115 A CN 201810103115A CN 108305812 A CN108305812 A CN 108305812A
- Authority
- CN
- China
- Prior art keywords
- copper coin
- blade
- knife switch
- lead
- switch
- 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.)
- Pending
Links
- 238000002955 isolation Methods 0.000 title claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 132
- 229910052802 copper Inorganic materials 0.000 claims abstract description 132
- 239000010949 copper Substances 0.000 claims abstract description 132
- 238000009413 insulation Methods 0.000 claims abstract description 20
- 239000012212 insulator Substances 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 2
- 206010037660 Pyrexia Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/16—Adaptation for built-in fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/54—Lever switches with blade-type contact co-operating with one or two spring-clip contacts, e.g. knife switch
Abstract
The invention discloses a kind of novel dismountable low pressure isolation switch for changing safety plate,Including pedestal,Left and right ends are respectively equipped with support insulator on pedestal,Two support insulator tops are vertically provided with lead-in copper coin,Lead-out wire copper coin,Lead-in copper coin,Lead-out wire copper coin is away from each other end and is respectively equipped with bolt,Opposite end is respectively equipped with contact,Contact is two and front and back parallel setting,Disconnecting link further includes two-phase copper coin blade of knife switch in end of incoming cables disposed in parallel,Two-phase leading-out terminal copper coin blade of knife switch disposed in parallel,Two-phase safety plate disposed in parallel and two-phase insulation connecting plate disposed in parallel,Insulation link block and safety plate are each provided between end of incoming cables copper coin blade of knife switch and leading-out terminal copper coin blade of knife switch,The link block that insulate is arranged in inside,Safety plate setting is on the outside of insulation link block,Two end of incoming cables copper coin blade of knife switch are connected with two contacts on lead-in copper coin respectively,Two leading-out terminal copper coin blade of knife switch are connected with two contacts on lead-out wire copper coin respectively；The safety plate contact resistance of the disconnecting link is small.
Description
Technical field
The present invention relates to what power industry 10kV pole top transformer taiwan area low-pressure line-outgoings side used to play disconnection low-voltage load
The low pressure isolation switch of the function of current, more particularly to a kind of novel dismountable low pressure isolation switch for changing safety plate.
Background technology
Pole type transformer uses commonplace in current power industry, therefore low pressure isolation switch use is relatively more, because
It is easy for installation for low pressure isolation switch technology maturation, it is easy to operate, it is cheap.Low pressure isolation switch used at present has two
Kind, need to operate on bar and replace one is safety plate, one is can remove disconnecting link to replace low pressure safety plate, it is such it is more convenient more
With practicability, therefore application is relatively extensive.
But this removable formula low pressure isolation switch that falls has the following problems：First, safety plate contact resistance is big, second is that knife
The contact area of lock and contact is few, and contact is easy poor contact, third, leading to the blade of knife switch of disconnecting link in the presence of intermediate insulation block is burnt out
Damage.
Invention content
In view of this, the object of the present invention is to provide a kind of novel dismountable low pressure isolation switch for changing safety plate, safety plate
Contact resistance is small.
The purpose of the present invention is what is be achieved through the following technical solutions：
The novel dismountable low pressure isolation switch for changing safety plate, including switch base, the left and right ends on the switch base
It is vertically arranged with support insulator respectively, two support insulator tops, which are respectively perpendicular, is provided with lead-in copper coin, lead-out wire copper coin,
It is away from each other end on the lead-in copper coin, lead-out wire copper coin and is respectively arranged with bolt, opposite end is respectively arranged with contact, described to touch
Head is two and front and back parallel setting, and the disconnecting link further includes end of incoming cables copper coin blade of knife switch, leading-out terminal copper coin blade of knife switch, insurance
Piece and insulation connecting plate, the end of incoming cables copper coin blade of knife switch, leading-out terminal copper coin blade of knife switch, safety plate and insulation connecting plate are two
A, parallel setting before and after two end of incoming cables copper coin blade of knife switch, parallel setting before and after two leading-out terminal copper coin blade of knife switch is described
Insulation link block and safety plate are arranged between end of incoming cables copper coin blade of knife switch and leading-out terminal copper coin blade of knife switch, two insulation link blocks
Front and back parallel setting, one end are arranged between two end of incoming cables copper coin blade of knife switch, and the other end is arranged in two leading-out terminal copper coin locks
Between blade, parallel setting before and after two safety plates, one end is arranged on the outside of two end of incoming cables copper coin blade of knife switch, and other end setting exists
On the outside of two leading-out terminal copper coin blade of knife switch, two end of incoming cables copper coin blade of knife switch are connected with two contacts on lead-in copper coin respectively, scene 2
Line end copper coin blade of knife switch is connected with two contacts on lead-out wire copper coin respectively.
Further, it is connected with surge arrester support between two end of incoming cables copper coin blade of knife switch, is horizontally disposed on the surge arrester support
There is connecting rod, low voltage surge arrester is provided in the connecting rod.
Further, the connecting rod free end is arranged in a grouding spring clamp clamping opening, and the grouding spring clamp bottom end is solid
It is scheduled on switch base.
Further, drainage wire casing pressing plate is provided between the bolt and lead-in copper coin and/or bolt and lead-out wire copper coin,
The drainage wire casing pressing plate lower openings, the lead-in copper coin, lead-out wire copper coin front and rear sides respectively with drainage wire casing pressing plate
Front and rear sides contact in opening.
Further, left end is equipped with hook, two end of incoming cables copper coin blade of knife switch, two leading-out terminal copper coins with right end contact opposite sides
Insulating bar is provided between blade of knife switch, hook is hung on insulating bar, and compressed spring is arranged on the insulating bar.
Further, the compressed spring carries out end copper coin blade of knife switch positioned at two, two leading-out terminal copper coin blade of knife switch are away from each other
It is pressed on end of incoming cables copper coin blade of knife switch, on leading-out terminal copper coin blade of knife switch on the insulating bar of side and by spring capping.
Further, it is provided with hook between the leading-out terminal copper coin blade of knife switch on right end support insulator.
The beneficial effects of the invention are as follows：
The novel dismountable low pressure isolation switch for changing safety plate of the present invention, by lead-in copper coin, lead-out wire copper coin
Two contacts are respectively set, and two end of incoming cables copper coin blade of knife switch, two leading-out terminal copper coin blade of knife switch, two insurances are set simultaneously
Piece and two insulation connecting plates so that disconnecting link is in integrally " clamping plate type ", increases safety plate contact area, reduces contact electricity
Resistance drains wire casing pressing plate by setting, improves the contact area of lead-in copper coin, lead-out wire copper coin and inlet-outlet line, to big
Contact resistance is reduced greatly, because of the reduction of contact resistance, to avoid fever from causing burning out for collets, is damaged " plug-in strip ",
By the way that arrester is arranged so that the disconnecting link has lightning-arrest effect, in conclusion by being improved above so that the service life of the disconnecting link obtains
To improve, and power supply reliability is improved indirectly, reduce failure rate, and increase low pressure lightning protection function.
Other advantages, target and the feature of the present invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.The target and other advantages of the present invention can be wanted by following specification and right
Book is sought to realize and obtain.
Description of the drawings
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
The detailed description of one step, wherein：
Fig. 1 is stereogram of the present invention；
Fig. 2 is front view of the present invention；
Fig. 3 is right view of the present invention；
Fig. 4 is another angle stereogram of the present invention.
In figure：Support insulator 1, insulator cover 2, switch base 3, grouding spring clamp 4, low voltage surge arrester 5, insulation connection
Block 6, surge arrester support 7, drainage wire casing pressing plate 10, lead-in copper coin 11, contact 14, end of incoming cables copper coin blade of knife switch 15, pressing plate 16,
Safety plate 18, leading-out terminal copper coin blade of knife switch 19, hook 20, lead-out wire copper coin 21, spring 22, spring capping 23.
Specific implementation mode
Hereinafter reference will be made to the drawings, and the preferred embodiment of the present invention is described in detail.It should be appreciated that preferred embodiment
Only for illustrating the present invention, the protection domain being not intended to be limiting of the invention.
As shown in Figs 1-4, the novel dismountable low pressure isolation switch for changing safety plate, including switch base 3, are conventional junction
Structure, the left and right ends on switch base 3 are vertically arranged with support insulator 1 respectively, and two support insulators, 1 lower end is also arranged with absolutely
Edge lid 2, two support insulators, 1 top, which is respectively perpendicular, is provided with lead-in copper coin 11, lead-out wire copper coin 21, lead-in copper coin
11, it is away from each other end on lead-out wire copper coin 21 and is respectively arranged with bolt, inlet-outlet line is bolted on lead-in copper coin 11, draws
On line copper coin 21, opposite end is respectively arranged with contact 14, and contact 14 is two and front and back parallel setting, disconnecting link further include inlet wire
Copper coin blade of knife switch 15, leading-out terminal copper coin blade of knife switch 19, safety plate 18 and insulation connecting plate 6, end of incoming cables copper coin blade of knife switch 15 is held to go out
Line end copper coin blade of knife switch 19, safety plate 18 and insulation connecting plate 6 are two, equal before and after two end of incoming cables copper coin blade of knife switch 15
Row is arranged, and parallel setting before and after two leading-out terminal copper coin blade of knife switch 19, insulation link block 6 is arranged at inlet wire with safety plate 18
It holds between copper coin blade of knife switch 15 and leading-out terminal copper coin blade of knife switch 19, parallel setting before and after two insulation link blocks 6, one end setting
Between two end of incoming cables copper coin blade of knife switch 15, the other end is arranged between two leading-out terminal copper coin blade of knife switch 19, before and after two safety plates 18
Parallel setting, one end setting are arranged in two end of incoming cables copper coin blade of knife switch, 15 outside, the other end in two leading-out terminal copper coin plug-in strips
The outside of piece 19, safety plate 18 are pressed in end of incoming cables copper coin blade of knife switch 15, on leading-out terminal copper coin blade of knife switch 19 by pressing plate 16, two into
Line end copper coin blade of knife switch 15 is connected with two contacts 14 on lead-in copper coin 11 respectively, two leading-out terminal copper coin blade of knife switch 19 respectively with
Two contacts 14 on lead-out wire copper coin 21 are connected.
Surge arrester support 7 is connected between two end of incoming cables copper coin blade of knife switch 15, being horizontally disposed on surge arrester support 7 has connection
Bar is provided with low voltage surge arrester 5 in connecting rod.
Connecting rod free end is arranged in 4 clamping opening of a grouding spring clamp, and 4 bottom end of grouding spring clamp is fixed on switch base 3
On, grouding spring clamp 4 includes two intermediate plates being vertically arranged, and two intermediate plate lower ends are connected by connection sheet, and upper end forms clamping opening, in this way
Structure can facilitate the dismounting of arrester.
Drainage wire casing pressing plate 10, drainage are provided between bolt and lead-in copper coin 11 and/or bolt and lead-out wire copper coin 21
10 lower openings of wire casing pressing plate, lead-in copper coin 11,21 front and rear sides of lead-out wire copper coin are open with drainage wire casing pressing plate 10 respectively
Interior front and rear sides contact, inlet-outlet line is pressed between drainage wire casing pressing plate 10 and lead-in copper coin 11, lead-out wire copper coin 21.
Left end is equipped with hook, two end of incoming cables copper coin blade of knife switch 15, two leading-out terminal copper coin locks with 14 opposite sides of right end contact
Insulating bar is provided between blade 19, hook is hung on insulating bar, compressed spring 22 is arranged on insulating bar, compressed spring 22 can
End of incoming cables copper coin blade of knife switch 15, leading-out terminal copper coin blade of knife switch 19 are securely pressed on contact 14, it is made to be contacted with contact 14 well.
Preferably, compressed spring 22 carries out end copper coin blade of knife switch 15 positioned at two, two leading-out terminal copper coin blade of knife switch 19 are away from each other the insulation of side
It is pressed on end of incoming cables copper coin blade of knife switch 15, on leading-out terminal copper coin blade of knife switch 19 on bar and by spring capping 23.
It is provided with hook 20 between leading-out terminal copper coin blade of knife switch 19 on right end support insulator 1, can be conveniently affiliated to.
The novel dismountable low pressure isolation switch for changing safety plate of the present invention, by lead-in copper coin, lead-out wire copper coin
Two contacts are respectively set, and two end of incoming cables copper coin blade of knife switch, two leading-out terminal copper coin blade of knife switch, two insurances are set simultaneously
Piece and two insulation connecting plates so that disconnecting link is in integrally " clamping plate type ", increases safety plate contact area, reduces contact electricity
Resistance drains wire casing pressing plate by setting, improves the contact area of lead-in copper coin, lead-out wire copper coin and inlet-outlet line, to big
Contact resistance is reduced greatly, because of the reduction of contact resistance, to avoid fever from causing burning out for collets, is damaged " plug-in strip ",
By the way that arrester is arranged so that the disconnecting link has lightning-arrest effect, in conclusion by being improved above so that the service life of the disconnecting link obtains
To improve, and power supply reliability is improved indirectly, reduce failure rate, and increase low pressure lightning protection function.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although with reference to compared with
Good embodiment describes the invention in detail, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of the technical program, should all be covered in the present invention
Right in.
Claims (7)
1. the novel dismountable low pressure isolation switch for changing safety plate, it is characterised in that：Including switch base, on the switch base
Left and right ends are vertically arranged with support insulator respectively, and two support insulator tops, which are respectively perpendicular, to be provided with lead-in copper coin, draws
Outlet copper coin is away from each other end on the lead-in copper coin, lead-out wire copper coin and is respectively arranged with bolt, and opposite end is respectively arranged with tactile
Head, the contact are two and front and back parallel setting, and the disconnecting link further includes end of incoming cables copper coin blade of knife switch, leading-out terminal copper coin lock
Blade, safety plate and insulation connecting plate, the end of incoming cables copper coin blade of knife switch, leading-out terminal copper coin blade of knife switch, safety plate and insulation connect
Fishplate bar is two, parallel setting before and after two end of incoming cables copper coin blade of knife switch, equal before and after two leading-out terminal copper coin blade of knife switch
Row setting, the insulation link block and safety plate are arranged between end of incoming cables copper coin blade of knife switch and leading-out terminal copper coin blade of knife switch,
Parallel setting before and after two insulation link blocks, one end are arranged between two end of incoming cables copper coin blade of knife switch, and the other end is arranged two
Between leading-out terminal copper coin blade of knife switch, parallel setting before and after two safety plates, one end is arranged on the outside of two end of incoming cables copper coin blade of knife switch,
The other end is arranged on the outside of two leading-out terminal copper coin blade of knife switch, and two end of incoming cables copper coin blade of knife switch are touched with two on lead-in copper coin respectively
Head is connected, and two leading-out terminal copper coin blade of knife switch are connected with two contacts on lead-out wire copper coin respectively.
2. the novel dismountable low pressure isolation switch for changing safety plate according to claim 1, it is characterised in that：Two end of incoming cables copper
Surge arrester support is connected between plate blade of knife switch, being horizontally disposed on the surge arrester support has connecting rod, is arranged in the connecting rod
There is low voltage surge arrester.
3. the novel dismountable low pressure isolation switch for changing safety plate according to claim 2, it is characterised in that：The connecting rod
Free end is arranged in a grouding spring clamp clamping opening, and the grouding spring clamp bottom end is fixed on switch base.
4. the novel dismountable low pressure isolation switch for changing safety plate according to claim 1, it is characterised in that：The bolt with
It is provided between lead-in copper coin and/or bolt and lead-out wire copper coin and drains wire casing pressing plate, the drainage wire casing pressing plate lower openings,
The lead-in copper coin, lead-out wire copper coin front and rear sides are contacted with front and rear sides in drainage wire casing pressing plate opening respectively.
5. the novel dismountable low pressure isolation switch for changing safety plate according to claim 1, it is characterised in that：Left end and right end
Contact opposite sides are equipped with hook, and insulating bar, hook are provided between two end of incoming cables copper coin blade of knife switch, two leading-out terminal copper coin blade of knife switch
It is hung on insulating bar, compressed spring is arranged on the insulating bar.
6. the novel dismountable low pressure isolation switch for changing safety plate according to claim 5, it is characterised in that：The compression bullet
Spring carries out end copper coin blade of knife switch positioned at two, two leading-out terminal copper coin blade of knife switch are away from each other on the insulating bar of side and are compressed by spring capping
On end of incoming cables copper coin blade of knife switch, leading-out terminal copper coin blade of knife switch.
7. according to any novel dismountable low pressure isolation switch for changing safety plate of claim 1-6, it is characterised in that：Right end
It is provided with hook between leading-out terminal copper coin blade of knife switch on support insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810103115.1A CN108305812A (en) | 2018-02-01 | 2018-02-01 | The novel dismountable low pressure isolation switch for changing safety plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810103115.1A CN108305812A (en) | 2018-02-01 | 2018-02-01 | The novel dismountable low pressure isolation switch for changing safety plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108305812A true CN108305812A (en) | 2018-07-20 |
Family
ID=62850627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810103115.1A Pending CN108305812A (en) | 2018-02-01 | 2018-02-01 | The novel dismountable low pressure isolation switch for changing safety plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108305812A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807107A (en) * | 2018-09-04 | 2018-11-13 | 广东电网有限责任公司 | Fuse cutout and electrical equipment |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841085A (en) * | 2010-02-02 | 2010-09-22 | 遂昌县明盛电业有限责任公司 | Improvement on copper-aluminum equipment wire clamp assembly and device and method thereof |
| CN201655651U (en) * | 2010-02-01 | 2010-11-24 | 欧阳铁桥 | Looped network breakpoint intelligent isolation switch |
| CN202534573U (en) * | 2012-04-26 | 2012-11-14 | 天津市玖仟电瓷电器有限公司 | Novel low-voltage isolating switch |
| CN203562535U (en) * | 2013-11-25 | 2014-04-23 | 国家电网公司 | Copper-aluminum transformer wire clamp |
| CN203617512U (en) * | 2013-11-21 | 2014-05-28 | 国家电网公司 | Multi-hole wire connecting terminal applied to switch |
| CN204045469U (en) * | 2014-08-07 | 2014-12-24 | 广东北江开关厂有限公司 | A kind of outdoor low voltage isolating switch combination unit |
| CN204740980U (en) * | 2015-07-01 | 2015-11-04 | 贵州电力试验研究院 | Telescopic ice -melt short circuit switch of level with lightning protection function |
| CN106451084A (en) * | 2016-10-21 | 2017-02-22 | 国网山西省电力公司运城供电公司 | Transformer station combined protective electrical appliance |
| CN106972289A (en) * | 2017-03-03 | 2017-07-21 | 曹孝培 | Multichannel fast energy-saving distribution line deconcentrator |
| CN206480791U (en) * | 2016-08-23 | 2017-09-08 | 江西康威电气技术有限公司 | Power equipment is connected with transmission line of electricity with installation wire clamp in a kind of power system |
| CN207966823U (en) * | 2018-02-01 | 2018-10-12 | 贵州电网有限责任公司 | The novel dismountable low pressure isolation switch for changing safety plate |
-
2018
- 2018-02-01 CN CN201810103115.1A patent/CN108305812A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201655651U (en) * | 2010-02-01 | 2010-11-24 | 欧阳铁桥 | Looped network breakpoint intelligent isolation switch |
| CN101841085A (en) * | 2010-02-02 | 2010-09-22 | 遂昌县明盛电业有限责任公司 | Improvement on copper-aluminum equipment wire clamp assembly and device and method thereof |
| CN202534573U (en) * | 2012-04-26 | 2012-11-14 | 天津市玖仟电瓷电器有限公司 | Novel low-voltage isolating switch |
| CN203617512U (en) * | 2013-11-21 | 2014-05-28 | 国家电网公司 | Multi-hole wire connecting terminal applied to switch |
| CN203562535U (en) * | 2013-11-25 | 2014-04-23 | 国家电网公司 | Copper-aluminum transformer wire clamp |
| CN204045469U (en) * | 2014-08-07 | 2014-12-24 | 广东北江开关厂有限公司 | A kind of outdoor low voltage isolating switch combination unit |
| CN204740980U (en) * | 2015-07-01 | 2015-11-04 | 贵州电力试验研究院 | Telescopic ice -melt short circuit switch of level with lightning protection function |
| CN206480791U (en) * | 2016-08-23 | 2017-09-08 | 江西康威电气技术有限公司 | Power equipment is connected with transmission line of electricity with installation wire clamp in a kind of power system |
| CN106451084A (en) * | 2016-10-21 | 2017-02-22 | 国网山西省电力公司运城供电公司 | Transformer station combined protective electrical appliance |
| CN106972289A (en) * | 2017-03-03 | 2017-07-21 | 曹孝培 | Multichannel fast energy-saving distribution line deconcentrator |
| CN207966823U (en) * | 2018-02-01 | 2018-10-12 | 贵州电网有限责任公司 | The novel dismountable low pressure isolation switch for changing safety plate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807107A (en) * | 2018-09-04 | 2018-11-13 | 广东电网有限责任公司 | Fuse cutout and electrical equipment |
| CN108807107B (en) * | 2018-09-04 | 2024-01-09 | 广东电网有限责任公司 | Fuse switch and electrical equipment |
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