CN105869944A - Earthing switch interlocking mechanism and operation method thereof - Google Patents
Earthing switch interlocking mechanism and operation method thereof Download PDFInfo
- Publication number
- CN105869944A CN105869944A CN201610361268.7A CN201610361268A CN105869944A CN 105869944 A CN105869944 A CN 105869944A CN 201610361268 A CN201610361268 A CN 201610361268A CN 105869944 A CN105869944 A CN 105869944A
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- China
- Prior art keywords
- interlocking
- operation axis
- earthed switch
- cabinet
- connecting lever
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/06—Interlocking mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Patch Boards (AREA)
Abstract
The invention relates to an interlocking mechanism, in particular to an earthing switch interlocking mechanism and an operation method thereof. The interlocking mechanism is applied to power equipment and comprises a cabinet, wherein an operation spindle is arranged in the cabinet and connected with an earthing control assembly and an interlocking assembly. According to the earthing switch interlocking mechanism and the operation method thereof, the structure is simple, the use performance is improved, and the operation efficiency is improved.
Description
Technical field
The present invention relates to a kind of interlocking mechanism, particularly relate to a kind of earthed switch interlocking mechanism and operational approach thereof, be used for
In power equipment.
Background technology
In existing power system, in power equipment, in maintenance process, it sometimes appear that hot line job, reduce maintenance
Safety.
Chinese patent 201210254820.4, discloses the modular construction of a kind of switch cubicle, specifically a kind of switch-cabinet grounding
Switch and lower door interlocking mechanism.This mechanism includes cabinet, is provided with earthed switch in the middle part of cabinet, and cabinet bottom is provided with fusing
Device room, front end, fuse room arranges Xiamen；The operation axle front end of earthed switch is the spindle nose that can coordinate with operation handle grafting；
Connecting on spindle nose and have an inter-locking panel that can rotate with spindle nose, inter-locking panel edge is hinged with connecting rod, and connecting rod lower end is hinged with lock pin；
The rotation of inter-locking panel can drive lock pin to vertically move on guide holder by connecting rod；When Xiamen is closed, lock pin
Move up and down and can extract or insert the lockhole on lower head jamb out.This structure is relative complex, and using effect is poor.
Summary of the invention
The present invention mainly solves the deficiencies in the prior art, it is provided that a kind of compact conformation, improves further and uses safety
Property, switchgear is not take up space, a kind of earthed switch interlocking mechanism and the operation thereof of switchgear width can be saved
Method
The above-mentioned technical problem of the present invention is mainly addressed by following technical proposals:
A kind of earthed switch interlocking mechanism, including cabinet, is provided with operation axis in described cabinet, described operation axis is respectively
Control assembly with ground connection and interlock assembly is connected；
Described ground connection controls assembly and includes socket-connecting fixing earthed crank arm with operation axis, described earthed crank arm and ground connection
Connecting rod is fixedly connected, and described ground connection connecting rod drives earthed switch axle to rotate, and described earthed switch axle passes through ground connection
Switch rotates, and is provided with static contact and moving contact in described cabinet, and described earthed switch fixes with static contact and touches,
The activity mutually of described earthed switch and moving contact touches, and described operation axis drives earthed switch axle to carry out displacement, described
Static contact is located in major loop；
Described interlock assembly includes interlocking rod and interlocking shaft, and one end of described interlocking rod is by the upper connecting lever of interlocking and behaviour
Being fixedly connected as main shaft, the other end of described interlocking rod is fixedly connected with interlocking shaft by the lower connecting lever of interlocking, described
The outer end of interlocking shaft be provided with snap close；
Described operation axis drives connecting lever and the lower connecting lever of interlocking on earthed crank arm, interlocking to rotate simultaneously.
As preferably, described operation axis is positioned by fixation kit with interlocking between centers, and described fixation kit includes
The installing plate being located in cabinet, between described installing plate and operation axis, installing plate and interlocking between centers be respectively equipped with fixed plate, institute
Between the fixed plate stated and operation axis, fixed plate and interlocking between centers be respectively equipped with fixed cover.
As preferably, the outer end of described operation axis extends to the outer wall of cabinet, and the outer end of described interlocking shaft extends
To the back door of cabinet, positioned mutually by support between the outer end of described interlocking shaft with cabinet.
As preferably, described operation axis is upper and lower parallel distribution with interlocking shaft, connecting lever and interlocking on described interlocking
Lower connecting lever is distributed in consistency from top to bottom in the same direction.
The operational approach of a kind of earthed switch interlocking mechanism, sequentially includes the following steps:
(1), assemble:
From cabinet rear portion update main shaft, and it is socketed connecting lever and fixture；One end of operation axis be fixed in the middle part of cabinet
Fixed plate on installing plate positions mutually, and fixed plate and operation axis are in socket relation, and the other end of operation axis is fixed on cabinet
Outer wall on；Fixed plate two sides are provided with fixed cover, and fixed cover socket-connects with operation axis, utilize between fixed cover and operation axis
Bolt is fixed, and position before and after operation axis can quickly be positioned by fixed cover；The middle-end of operation axis is installed on interlocking
Connecting lever, the outer end installation earthed crank arm of operation axis, earthed crank arm is fixedly connected with earthed switch axle by ground connection connecting rod；
The outer end of interlocking shaft is positioned with cabinet mutually by support, the other end of interlocking shaft and the fixed plate on the installing plate in cabinet
Positioning mutually, support, fixed plate and interlocking shaft are in socket relation；Support side, fixed plate two sides are provided with fixed cover, fixed cover with
Operation axis socket-connects, and utilizes bolt to fix between fixed cover and operation axis, and fixed cover can be to position before and after operation axis
Quickly position；The lower connecting lever of interlocking is installed in the front end of interlocking shaft；The outer end of interlocking shaft is provided with snap close；
Between earthed crank arm and operation axis, on interlocking between connecting lever and operation axis, under interlocking, connecting lever passes through respectively with interlocking between centers
Pin is fixing；It is fixedly connected by interlocking rod between connecting lever and the lower connecting lever of interlocking on interlocking；Interlocking shaft socket-connects with snap close and leads to
Cross bolt to fix；
Being provided with an elliptical aperture in back door, snap close end is ellipticity, and elliptical aperture and snap close are that activity connects；
(2), test:
Detection ground connection controls assembly and the operation possibility of interlock assembly, determines that each assembly uses steadiness, it is ensured that operation axis
Synchronicity with interlocking shaft operation；
(3), operation:
During major loop energising, earthed switch is in gate-dividing state；During major loop power-off maintenance, earthed switch needs to be in combined floodgate shape
State, makes major loop ground, can protect maintainer's safety, the most only when earthed switch is in closing position when unexpected energising
Could allow to open back door maintenance；
When after major loop power-off, outer by operation handle operation at cabinet so that operation axis rotates clockwise 90 degree, operation axis
On earthed crank arm and ground connection connecting rod drive earthed switch axle rotate 90 degree, moving contact from divide position with earthed switch axle as the center of circle
Rotate 90 degree to completely attach to static contact, it is achieved earthed switch closes a floodgate, major loop ground；
When operational grounding switchs, operation axis rotates 90 degree, and on interlocking, connecting lever can rotate together with operation axis, passes through connecting rod
Connecting lever lower with interlocking drives interlocking shaft and snap close to rotate with equidirectional；When earthed switch is positioned at closing position, snap close end
Ellipsoid and the elliptical aperture on back door are in being parallel to each other, and back door is not lockable；When earthed switch is positioned at point position, snap close end
With the elliptical aperture on back door in vertical state, back door is lockable ellipsoid, it is impossible to open；
(4), regular maintenance:
During earthed switch operation, operation axis, interlocking shaft respectively and are mutual sliding mode between fixed plate, support, should be coated with profit
Consistent lubricant is lubricated；In time each assembly should be carried out regular maintenance, it is ensured that the effectiveness of use.
This mechanism, linkage effect is outstanding, and synchronicity is strong, takes up room little simultaneously, and easy for installation, serviceability is outstanding.
Therefore, one earthed switch interlocking mechanism of the present invention and operational approach thereof, compact conformation, promote serviceability, carry
High operating efficiency.
Accompanying drawing explanation
Fig. 1 is the perspective view of the present invention；
Fig. 2 is the structural representation of interlocking mechanism in the present invention；
Fig. 3 be in the present invention A to the structural representation of earthed switch closing position；
Fig. 4 be in the present invention A to the structural representation of grounding switch tripping position.
Detailed description of the invention
Below by embodiment, and combine accompanying drawing, technical scheme is described in further detail.
Embodiment 1: as shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of earthed switch interlocking mechanism, including cabinet 1, described
Being provided with operation axis 2 in cabinet 1, described operation axis 2 controls assembly with ground connection respectively and interlock assembly is connected；
Described ground connection controls the earthed crank arm 3 that assembly includes socket-connecting fixing with operation axis 2, described earthed crank arm 3 with
Ground connection connecting rod 4 is fixedly connected, and described ground connection connecting rod 4 drives earthed switch axle 5 to rotate, and described earthed switch axle leads to
Cross earthed switch 19 to rotate, described cabinet 1 is provided with static contact 6 and moving contact 7, described earthed switch 19 and stationary contact
6 fix and touch, and described earthed switch 19 touches with moving contact 7 phase activity, and described operation axis 2 drives earthed switch
Axle 5 carries out displacement, and described static contact 6 is located in major loop 8；
Described interlock assembly includes interlocking rod 9 and interlocking shaft 10, and one end of described interlocking rod 9 is by the upper connecting lever of interlocking
11 are fixedly connected with operation axis 2, and the other end of described interlocking rod 9 is solid with interlocking shaft 10 phase by the lower connecting lever 12 of interlocking
Fixed connection, the outer end of described interlocking shaft 10 is provided with snap close 13；
Described operation axis 2 drives connecting lever 11 and the lower connecting lever 12 of interlocking on earthed crank arm 3, interlocking to rotate simultaneously.
Being positioned by fixation kit between described operation axis 1 and interlocking shaft 10, described fixation kit includes being located at cabinet
Installing plate 14 in body 1, between described installing plate 14 and operation axis 2, be respectively equipped with between installing plate 14 and interlocking shaft 10 fixing
Plate 15, between described fixed plate 15 and operation axis 2, is respectively equipped with fixed cover 16 between fixed plate 15 and interlocking shaft 10.
The outer end of described operation axis 2 extends to the outer wall of cabinet 1, and the outer end of described interlocking shaft 10 extends to cabinet
The back door 17 of 1, is positioned by support 18 phase between the outer end of described interlocking shaft 10 with cabinet 1.
Described operation axis 2 is with interlocking shaft 10 in upper and lower parallel distribution, and on described interlocking, connecting lever 11 turns under interlocking
Arm 12 is distributed in consistency from top to bottom in the same direction.
The operational approach of a kind of earthed switch interlocking mechanism, sequentially includes the following steps:
(1), assemble:
From cabinet rear portion update main shaft, and it is socketed connecting lever and fixture；One end of operation axis be fixed in the middle part of cabinet
Fixed plate on installing plate positions mutually, and fixed plate and operation axis are in socket relation, and the other end of operation axis is fixed on cabinet
Outer wall on；Fixed plate two sides are provided with fixed cover, and fixed cover socket-connects with operation axis, utilize between fixed cover and operation axis
Bolt is fixed, and position before and after operation axis can quickly be positioned by fixed cover；The middle-end of operation axis is installed on interlocking
Connecting lever, the outer end installation earthed crank arm of operation axis, earthed crank arm is fixedly connected with earthed switch axle by ground connection connecting rod；
The outer end of interlocking shaft is positioned with cabinet mutually by support, the other end of interlocking shaft and the fixed plate on the installing plate in cabinet
Positioning mutually, support, fixed plate and interlocking shaft are in socket relation；Support side, fixed plate two sides are provided with fixed cover, fixed cover with
Operation axis socket-connects, and utilizes bolt to fix between fixed cover and operation axis, and fixed cover can be to position before and after operation axis
Quickly position；The lower connecting lever of interlocking is installed in the front end of interlocking shaft；The outer end of interlocking shaft is provided with snap close；
Between earthed crank arm and operation axis, on interlocking between connecting lever and operation axis, under interlocking, connecting lever passes through respectively with interlocking between centers
Pin is fixing；It is fixedly connected by interlocking rod between connecting lever and the lower connecting lever of interlocking on interlocking；Interlocking shaft socket-connects with snap close and leads to
Cross bolt to fix；
Being provided with an elliptical aperture in back door, snap close end is ellipticity, and elliptical aperture and snap close are that activity connects；
(2), test:
Detection ground connection controls assembly and the operation possibility of interlock assembly, determines that each assembly uses steadiness, it is ensured that operation axis
Synchronicity with interlocking shaft operation；
(4), operation:
During major loop energising, earthed switch is in gate-dividing state；During major loop power-off maintenance, earthed switch needs to be in combined floodgate shape
State, makes major loop ground, can protect maintainer's safety, the most only when earthed switch is in closing position when unexpected energising
Could allow to open back door maintenance；
When after major loop power-off, outer by operation handle operation at cabinet so that operation axis rotates clockwise 90 degree, operation axis
On earthed crank arm and ground connection connecting rod drive earthed switch axle rotate 90 degree, moving contact from divide position with earthed switch axle as the center of circle
Rotate 90 degree to completely attach to static contact, it is achieved earthed switch closes a floodgate, major loop ground；
When operational grounding switchs, operation axis rotates 90 degree, and on interlocking, connecting lever can rotate together with operation axis, passes through connecting rod
Connecting lever lower with interlocking drives interlocking shaft and snap close to rotate with equidirectional；When earthed switch is positioned at closing position, snap close end
Ellipsoid and the elliptical aperture on back door are in being parallel to each other, and back door is not lockable；When earthed switch is positioned at point position, snap close end
With the elliptical aperture on back door in vertical state, back door is lockable ellipsoid, it is impossible to open；
(4), regular maintenance:
During earthed switch operation, operation axis, interlocking shaft respectively and are mutual sliding mode between fixed plate, support, should be coated with profit
Consistent lubricant is lubricated；In time each assembly should be carried out regular maintenance, it is ensured that the effectiveness of use.
Claims (5)
1. an earthed switch interlocking mechanism, it is characterised in that: include cabinet (1), described cabinet (1) is provided with operation axis
(2), described operation axis (2) controls assembly with ground connection respectively and interlock assembly is connected；
Described ground connection controls the earthed crank arm (3) that assembly includes socket-connecting fixing with operation axis (2), described earthed crank arm
(3) being fixedly connected with ground connection connecting rod (4), described ground connection connecting rod (4) drives earthed switch axle (5) to rotate, described
Earthed switch axle is rotated by earthed switch (19), is provided with static contact (6) and moving contact (7), institute in described cabinet (1)
The earthed switch (19) stated fixes with static contact (6) and touches, and described earthed switch (19) and moving contact (7) are movable mutually to be touched
Connecing, described operation axis (2) drives earthed switch axle (5) to carry out displacement, and described static contact (6) is located in major loop (8)；
Described interlock assembly includes interlocking rod (9) and interlocking shaft (10), and one end of described interlocking rod (9) is by interlocking
Upper connecting lever (11) is fixedly connected with operation axis (2), and the other end of described interlocking rod (9) is by the lower connecting lever (12) of interlocking
Being fixedly connected with interlocking shaft (10), the outer end of described interlocking shaft (10) is provided with snap close (13)；
Described operation axis (2) drives connecting lever (11) and the lower connecting lever (12) of interlocking on earthed crank arm (3), interlocking to rotate simultaneously.
A kind of earthed switch interlocking mechanism the most according to claim 1, it is characterised in that: described operation axis (1) with
Interlocking shaft is positioned by fixation kit between (10), and described fixation kit includes the installing plate (14) being located in cabinet (1), described
Installing plate (14) and operation axis (2) between, be respectively equipped with fixed plate (15) between installing plate (14) and interlocking shaft (10), described
Between fixed plate (15) and operation axis (2), between fixed plate (15) and interlocking shaft (10), it is respectively equipped with fixed cover (16).
A kind of earthed switch interlocking mechanism the most according to claim 1 and 2, it is characterised in that: described operation axis (2)
Outer end extend to the outer wall of cabinet (1), the outer end of described interlocking shaft (10) extends to the back door (17) of cabinet (1), described
Interlocking shaft (10) outer end and cabinet (1) between positioned mutually by support (18).
A kind of earthed switch interlocking mechanism the most according to claim 1 and 2, it is characterised in that: described operation axis (2)
With interlocking shaft (10) in upper and lower parallel distribution, on described interlocking, connecting lever (11) connecting lever (12) lower with interlocking is in consistency from top to bottom in the same direction
Distribution.
The operational approach of a kind of earthed switch interlocking mechanism the most according to claim 1 and 2, it is characterised in that by following step
Suddenly carry out:
(1), assemble:
From cabinet rear portion update main shaft, and it is socketed connecting lever and fixture；One end of operation axis be fixed in the middle part of cabinet
Fixed plate on installing plate positions mutually, and fixed plate and operation axis are in socket relation, and the other end of operation axis is fixed on cabinet
Outer wall on；Fixed plate two sides are provided with fixed cover, and fixed cover socket-connects with operation axis, utilize between fixed cover and operation axis
Bolt is fixed, and position before and after operation axis can quickly be positioned by fixed cover；The middle-end of operation axis is installed on interlocking
Connecting lever, the outer end installation earthed crank arm of operation axis, earthed crank arm is fixedly connected with earthed switch axle by ground connection connecting rod；
The outer end of interlocking shaft is positioned with cabinet mutually by support, the other end of interlocking shaft and the fixed plate on the installing plate in cabinet
Positioning mutually, support, fixed plate and interlocking shaft are in socket relation；Support side, fixed plate two sides are provided with fixed cover, fixed cover with
Operation axis socket-connects, and utilizes bolt to fix between fixed cover and operation axis, and fixed cover can be to position before and after operation axis
Quickly position；The lower connecting lever of interlocking is installed in the front end of interlocking shaft；The outer end of interlocking shaft is provided with snap close；
Between earthed crank arm and operation axis, on interlocking between connecting lever and operation axis, under interlocking, connecting lever passes through respectively with interlocking between centers
Pin is fixing；It is fixedly connected by interlocking rod between connecting lever and the lower connecting lever of interlocking on interlocking；Interlocking shaft socket-connects with snap close and leads to
Cross bolt to fix；
Being provided with an elliptical aperture in back door, snap close end is ellipticity, and elliptical aperture and snap close are that activity connects；
(2), test:
Detection ground connection controls assembly and the operation possibility of interlock assembly, determines that each assembly uses steadiness, it is ensured that operation axis
Synchronicity with interlocking shaft operation；
(3), operation:
During major loop energising, earthed switch is in gate-dividing state；During major loop power-off maintenance, earthed switch needs to be in combined floodgate shape
State, makes major loop ground, can protect maintainer's safety, the most only when earthed switch is in closing position when unexpected energising
Could allow to open back door maintenance；
When after major loop power-off, outer by operation handle operation at cabinet so that operation axis rotates clockwise 90 degree, operation axis
On earthed crank arm and ground connection connecting rod drive earthed switch axle rotate 90 degree, moving contact from divide position with earthed switch axle as the center of circle
Rotate 90 degree to completely attach to static contact, it is achieved earthed switch closes a floodgate, major loop ground；
When operational grounding switchs, operation axis rotates 90 degree, and on interlocking, connecting lever can rotate together with operation axis, passes through connecting rod
Connecting lever lower with interlocking drives interlocking shaft and snap close to rotate with equidirectional；When earthed switch is positioned at closing position, snap close end
Ellipsoid and the elliptical aperture on back door are in being parallel to each other, and back door is not lockable；When earthed switch is positioned at point position, snap close end
With the elliptical aperture on back door in vertical state, back door is lockable ellipsoid, it is impossible to open；
(4), regular maintenance:
During earthed switch operation, operation axis, interlocking shaft respectively and are mutual sliding mode between fixed plate, support, should be coated with profit
Consistent lubricant is lubricated；In time each assembly should be carried out regular maintenance, it is ensured that the effectiveness of use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610361268.7A CN105869944B (en) | 2016-05-25 | 2016-05-25 | A kind of earthing switch interlocking mechanism and its operating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610361268.7A CN105869944B (en) | 2016-05-25 | 2016-05-25 | A kind of earthing switch interlocking mechanism and its operating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105869944A true CN105869944A (en) | 2016-08-17 |
| CN105869944B CN105869944B (en) | 2018-10-02 |
Family
ID=56642243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610361268.7A Active CN105869944B (en) | 2016-05-25 | 2016-05-25 | A kind of earthing switch interlocking mechanism and its operating method |
Country Status (1)
| Country | Link |
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| CN (1) | CN105869944B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531535A (en) * | 2016-12-25 | 2017-03-22 | 中山弗雷德机械有限公司 | Mechanical interlocking device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2736902Y (en) * | 2004-06-11 | 2005-10-26 | 安徽鑫龙电器股份有限公司 | Armour moving type closed AC switch cabinet |
| CN201032613Y (en) * | 2007-02-16 | 2008-03-05 | 常熟开关制造有限公司(原常熟开关厂） | Interlocking device for switching equipment |
| CN201556845U (en) * | 2009-12-11 | 2010-08-18 | 天水长城开关厂有限公司 | Earthing switch and back-lower gate interlocking mechanism of medium-voltage aggregated switchgear |
| CN201886951U (en) * | 2010-12-10 | 2011-06-29 | 上海一电集团有限公司 | Grounding switch and rear door interlocking device for high-voltage switch cabinet |
| CN205789670U (en) * | 2016-05-25 | 2016-12-07 | 杭州欣美成套电器制造有限公司 | A kind of earthed switch interlocking mechanism |
-
2016
- 2016-05-25 CN CN201610361268.7A patent/CN105869944B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2736902Y (en) * | 2004-06-11 | 2005-10-26 | 安徽鑫龙电器股份有限公司 | Armour moving type closed AC switch cabinet |
| CN201032613Y (en) * | 2007-02-16 | 2008-03-05 | 常熟开关制造有限公司(原常熟开关厂） | Interlocking device for switching equipment |
| CN201556845U (en) * | 2009-12-11 | 2010-08-18 | 天水长城开关厂有限公司 | Earthing switch and back-lower gate interlocking mechanism of medium-voltage aggregated switchgear |
| CN201886951U (en) * | 2010-12-10 | 2011-06-29 | 上海一电集团有限公司 | Grounding switch and rear door interlocking device for high-voltage switch cabinet |
| CN205789670U (en) * | 2016-05-25 | 2016-12-07 | 杭州欣美成套电器制造有限公司 | A kind of earthed switch interlocking mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531535A (en) * | 2016-12-25 | 2017-03-22 | 中山弗雷德机械有限公司 | Mechanical interlocking device |
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| Publication number | Publication date |
|---|---|
| CN105869944B (en) | 2018-10-02 |
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