KR101438491B1 - Bracket of connecting for electric power cable in underground - Google Patents

Abstract

The present invention relates to a connection bracket for an underground electric power cable capable of: enabling an operator on the ground to quickly identify problems of an underground electrical cable installed in an underground pipe and do performance work; and preventing accidents such as a current leakage and a short circuit by firmly maintaining the underground electrical cable and at the same time allowing the underground electrical cable upward. The present invention includes: a rectangular underground pipe which is buried under the ground and has a storage space inside; a base which is placed on the bottom surface of the underground pipe and includes a vertical support; a rack which is supported by the support, on which an underground electrical cable is mounted, and which is made of transparent synthetic resin; a detection panel which is attached on the bottom of the rack and detects movement of the underground electrical cable placed on the top surface; and a control unit which is connected to the upper end part of the support, detects an abnormal signal detected by the detection panel, and transmits related data to an operator on the ground. On the rack, a cable bonding member to mount the underground electrical cable is installed. The detection panel includes a unit to check the abnormal position of the underground electrical cable, a control unit, and a wireless transmission unit. Inside the underground pipe, a support plate, a guide rod, a pair of motors, a cable, an operation panel, a liquid detection sensor, a stopper, a switch, and a support block are further included.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

More particularly, the present invention relates to an underground cable connection bracket for a power transmission, and more particularly, to an earth ground operator who can quickly grasp the abnormality of a ground wire for distribution installed in an underground pipe, To the upper side so as to suppress an occurrence of an accident such as a short circuit or a short circuit.

In general, electric power lines are installed in electric poles or buried in the ground in order to supply electric power. The ground and airborne type are much more economical than the method of buried in the ground in consideration of the workability, the construction cost and the construction period Although there is an advantage that construction can be simplified, it is disadvantageous that it is difficult to install in a place where buildings are very close to each other, such as a downtown area.

For example, in a power plant including a thermal power plant, a hydroelectric power plant, and a nuclear power plant, electricity generated at a voltage of about 20,000 V is boosted to ultra high voltage (154 KV or 345 KV) suitable for transmission, To the primary substation. The primary substation lowers the super-high voltage electricity to 22.9 KV, which is the special high voltage, and transmits or distributes electricity to the general customers along the secondary substations or distribution lines located near the large-capacity customers.

The electricity distributed from the first substation or the second substation is transmitted or distributed to the reception facilities of each customer through the transmission and distribution system composed of the processing distribution line and the underground distribution line. The electricity is distributed to the low-pressure customer through the special high pressure customer, the high- It is used for industrial and domestic purposes.

Generally, in the transmission and distribution system using the ground, an underground pipe is arranged in the ground so as to be spaced apart in the vertical and horizontal directions, and a cable or an underground wire is installed to transmit electric power to the hole formed in the underground pipe. Transmits and distributes extra high voltage. The above-mentioned underground pipes must be kept in a constant spacing, and it is difficult to maintain a uniform spacing of the ground.

A plurality of shelves for accommodating a plurality of wires (for example, extra-high voltage cables, communication cables, etc.) are arranged at regular intervals in the underground tube, and underground wires are mounted on the shelves, Supply.

Regarding such a power supply method, the Korean Patent Registration No. 0881352 discloses a technology for preventing the shortening of the service life of the distribution line due to the leakage of the concrete structure and the electric accident beforehand, and the flow of the rotation shaft, the guide member, &Quot; a distribution line forming panel of an extra high voltage underground wire "

However, such a configuration is not perfect, so that the underground pipe is twisted or flowed due to natural disasters such as earthquake or ground erosion, so that some underground wires mounted on the shelf fall down to the bottom of the underground pipe, And this has caused a lot of maintenance costs and time-consuming work because the ground worker can not easily grasp the problem of the underground wires of any underground pipe among many underground pipes.

In consideration of this point, Patent Registration No. 01203532 discloses a method of detecting the location of a ground tube and the location of a damaged ground wire at the time of occurrence of a natural disaster, thereby reducing the maintenance cost and time, Protection panel ", but in this case, when water floats on the bottom of the concrete structure due to flooding, the corresponding structure is not provided and the possibility that the electric current flowing through the oxidized portion of the underground wire is exposed So that the incidence of safety accidents due to blackout or electric shock is significantly increased.

Korean Registered Patent No. 0881352 (Registered on Mar. 23, 2009) Name of invention: Panel formed with distribution line of special high voltage underground wire. Korean Registered Patent No. 1203532 (Registered on November 15, 2012) Name of invention: Protection panel for underground cable distribution line. Korean Registered Patent No. 1271746 (Registered on May 30, 2013) Name of invention: Underground cable connection bracket for ships. Korean Registered Patent No. 1367749 (Registered on February 20, 2014) Title of invention: Underground cable connection bracket for distribution.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art described above, and it is an object of the present invention to reduce the maintenance cost and time by quickly locating the location of the underground pipe and the location of the damaged underground wire when a natural disaster occurs And can securely fix the underground wire to the ground wire connecting bracket.

Further, according to the present invention, when a bottom of an underground pipe is filled with water, a shelf on which a ground wire is placed can be moved upward, thereby providing a ground wire connection bracket for distribution that can prevent an accident such as a short circuit or short- .

In order to achieve the above object, according to the present invention, there is provided an underground pipe having a rectangular shape, which is buried in an underground and has a receiving space therein, a base provided with a support base arranged in a vertical direction and disposed on a bottom surface of the underground pipe, A sensing panel mounted on a lower side of the shelf and sensing a flow of a ground wire placed on the upper surface of the shelf; an abnormal signal sensed by the sensing panel connected to the upper end of the supporter, And a control unit for transmitting information on the ground to a worker on the ground, wherein the shelf has a pedestal formed with a space having a latching jaw for mounting a ground wire and having a circular groove formed on the inner surface of the shelf, And a cover which is hinged to be opened and closed by the seat portion and has a buffer member formed on the inner surface thereof, And a photosensor having a light emitting portion and a light receiving portion at a position corresponding to a ground wire mounted on each shelf is installed on the sensing panel so as to detect whether the underground wires are arranged on the lower side of the shelf, The control unit includes an abnormal position detection unit for detecting unique information of the underground pipe, the underground pipe, the shelf and the underground wire according to the detection signal provided from the detection panel, and the information provided by the abnormal position confirmation unit, And a wireless transmission unit for wirelessly transmitting the monitoring information generated by the control unit to a ground worker, wherein the monitoring information is transmitted to the underground pipe A guide bar installed through the support plate, each shelf and the detection panel, the shelf and the detection plate A pair of motors for moving the board up and down, a wire wound on the pulleys of these motors and attached to the respective shelves and the detection panel, an operation panel for controlling the forward and reverse rotation of the motor, A stopper for maintaining a gap between the shelves, a switch mounted on a lower end of the support plate and operated by a stopper, and a support block installed in a lower center of the underground pipe.

According to the distribution ground wire connection bracket according to the present invention, since a plurality of ground wires can be reliably fixed to the shelf at predetermined intervals by the binding means, the flow is prevented, and even when the work is caused to flow, Since the information about the underground cable which is immediately abnormal by the panel is transmitted to the ground worker, the maintenance can be performed promptly.

In addition, when the bottom of the underground pipe is filled with water, it is detected that the underground wire can be moved quickly to the upper side, so that the occurrence of an accident such as a short circuit or short circuit can be suppressed.

1 is a sectional view showing an internal structure of an underground tube to which the present invention is applied,
Fig. 2 is a partial perspective view showing the configuration of the shelf and the sensing panel of Fig. 1,
FIG. 3 is a sectional view of the main part in a state where the shelf and the sensing panel of FIG.
FIG. 4 is a block diagram for explaining the relationship between the sensing panel and the control unit of FIG. 1;
Fig. 5A and Fig. 5B are perspective views showing a state in which the wire binding members are separated and engaged,
FIG. 6 is a front view showing a wire binding member to which an underground wire is mounted;
FIG. 7 is a front view showing a state in which a main component in an underground pipe is added;
8 is a front view showing the operation state of Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to the description of the present invention, the following specific structure or functional description is merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms , And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

The present invention utilizes some configurations of the registered patent No. 1203532 as it is. Therefore, the features of the device configuration described below are those disclosed in Japanese Patent Registration No. 1203532, but the present invention further includes improvements to some of the configurations disclosed in the registration number 1203532. [

Therefore, each known component, feature and operation relationship will be referred to in the above-mentioned Japanese Patent No. 1203532, and the configuration related to the main feature of the present invention will be described in detail at the rear end.

2 is a partial perspective view showing the configuration of the shelf and the sensing panel of Fig. 1, Fig. 3 is a cross-sectional view of the main part in a state where the shelf and the sensing panel are mounted on a support, Fig. And Fig. 4 is a block diagram for explaining the relationship between the sensing panel and the control unit of Fig.

1 and 2, the underground pipe 10 is formed in the form of a rectangular box having an internal space that an operator can enter and maintain. A base 20 having a predetermined width and height is provided on the bottom surface of the receiving space 11 for receiving the underground cable L of the underground pipe 10. A support 21 is vertically provided at the center of the base 20 And at the same time, a box-shaped control unit 50 is provided on one side of the upper end of the support 21. The control unit (50) and the support base (21) are connected to each other.

A plurality of unit ground wires (L) L1 and L2 ... L8 are arranged on the upper surface of each shelf 30 in a predetermined interval and a width Respectively. These ground wires L are held mounted on a seating groove 301 formed in the longitudinal direction on the upper surface of each shelf 30.

The ground wire L may be disposed so that the flow thereof is interrupted when the ground wire L is mounted on the shelf 30. 1, the seating groove 301 formed in the shelf 30 is formed to be deeper than the radius R of the unit ground wire L applied thereto, so that at least 1/2 of the outer circumferential surface of the ground wire L is mounted in the seating groove 301 So that the operator can apply a constant force to the underground wire L and fix it in a forced fit manner.

A sensing panel 40 is mounted on the lower side of each of the shelves 30 and a surface of the sensing panel 40 in contact with the shelf 30 corresponds to a seating groove 301 formed in the longitudinal direction of the shelf 30 A plurality of sensors are disposed in the position. The sensor is preferably a photosensor S and the photosensor S has a general configuration in which a light-emitting portion (light-emitting portion) and a light-receiving portion are provided together.

The optical signal output from the light emitting portion of the photo sensor S is reflected on the surface of the object or the ground wire L and is received by the light receiving portion. That is, the case where the light receiving unit of the photo sensor S does not receive the optical signal output by the light emitting unit.

The photosensor S preferably emits and receives an optical signal of any one color selected from among the representative seven colors of infrared, ultraviolet, or rainbow.

Accordingly, it is preferable that the shelf 30 is made of a transparent synthetic resin, or at least only the portion where the photosensor S is disposed is made of a transparent material. Or the shelf is formed of a metal material, the corresponding position of the photosensor S described above may be formed as an open hole.

The control unit 50 is fixed to the upper portion of the underground pipe 10 so as to occupy the safest position when the inside of the underground pipe 10 is submerged. The control unit 50 is electrically connected to the sensing panel 40 provided in correspondence with each shelf 30 and is connected to the underground pipe 10, the shelf 30, It is possible to read information on the abnormality of the underground wire L and to transmit the information to the ground operator wirelessly.

Referring to Fig. 3, the support 21 has a hollow portion 211 in the form of a pipe. The electrical lines of the sensing panel 40 fixed to the support 21 are connected to the control unit 50 through the hollow portion 211 of the support 21. That is, the complication of the external wirings is eliminated and the malfunction of the control unit due to flooding is prevented in advance.

Accordingly, when a specific ground wire L that can be generated by a natural disaster such as an earthquake or a ground erosion occurs and the position of the shelf 30 is changed, the photosensor S disposed at the lower side thereof performs a sensing operation And provides the control unit 50 with the abnormality information of the underground wire L to the ground worker.

4 is a block diagram showing the relationship between the sensing panel 40 and the control unit 50 shown in Fig. 4, the control unit 50 includes a control unit 51, an abnormal position determination unit 52, and a wireless transmission unit 53. [

The abnormal position confirming unit 52 receives the sensing signal of the corresponding underground wire L in which the abnormality occurs among the plurality of photosensors S arranged on the sensing panel 40 and outputs the position information of the corresponding shelf 30 And provides information of the underground pipe 10 to the control unit 51.

The photosensor S of the sensing panel 40 senses the ground wire L and provides it to the abnormal position confirming unit 52. [ The sensing information may be a concept including positional information of the unit underground wire L and positional information of the corresponding shelf 30 and unique information of the underground pipe 10. Therefore, the abnormal position determination unit 52 detects the detection signal and provides the control unit 51 with the information of the underground pipe 10, the information of the shelf 30, and the information of the underground wire L.

The control unit 51 transmits the abnormal information about the underground wire L provided by the abnormal position confirmation unit 52 by using the wireless transmission unit 53. [ The control unit 51 reads the detection signal of the underground cable L provided by the abnormal position confirming unit 52 and detects the corresponding position of the underground cable L, the corresponding position of the shelf 30, Converts the information into a signal that can be read by the operator, and controls the wireless transmission unit 53 to transmit the signal.

More preferably, the above-described control unit 51 may be a concept including a storage unit. Therefore, it is possible to provide the information of the underground wire detected with the abnormality by providing the operator with the storage information of various additional information such as the role and function of the underground wire L together.

For example, when the sixth underground cable L6 of the second shelf R2 of FIG. 1 is detached from the shelf, the corresponding photosensor S of the detection panel 40 installed below it detects that the underground wire is detached.

For example, the photosensor S of the sensing panel 40 may include a light emitting portion and a light receiving portion. When a ground wire is placed on the transparent shelf 30, the light source irradiated by the light emitting portion is reflected by the underground wire, It will be detected that the underground wire is not separated from the corresponding seating groove 30.

However, when the underground wire is detached from the corresponding mount groove 301, the light receiving part, which is irradiated by the light emitting part and received the light reflected by the underground wire, fails to receive the light source reflected by the deviation of the underground wire, To the abnormal position check unit (52) of the control unit (50).

Accordingly, the abnormal position confirming unit 52 confirms the detected position information of the photosensor S and provides the controller 51 with information on the detected position information. The control unit 51 transmits the information (for example, information indicating that an abnormality has occurred in the L6 underground wire of the R2 shelf of the Nth underground pipe and the underground wire is an extra-high voltage wire provided to the area) to the wireless transmitter unit 53 To the ground.

Accordingly, an operator working on the ground immediately monitors such monitoring information and detects the position of the underground pipe 10 and the type of the underground wire R2 and the underground wire L6 in which the underground wire L6 is located, High-voltage cables to the area), which can shorten maintenance time and reduce costs.

The configuration up to this point is as disclosed in Japanese Patent Registration No. 1203532. According to the present invention, the structure shown in FIG. 5 to FIG. 8 is additionally provided on the basis of such a structure, so that the underground wire can be securely fixed to protect against external impact, Or a short-circuit line can be detected immediately to prevent the occurrence of a safety accident.

In other words, FIGS. 5A and 5B are perspective views illustrating a state in which the wire binding members are separated and engaged, and FIG. 6 is a front view showing a wire binding member equipped with an underground wire. As shown in these drawings, the present invention is characterized in that a pedestal 31A fixed on the above-mentioned shelf 30 and a fixing table 31B for fixing each ground wire L and placing it on the pedestal 31A And an electric wire binding member 32 made of the same material.

The pedestal 31A is formed with a space 33 having a latching protrusion 33a and a circular groove 34 formed at the bottom of the inner surface of the pedestal 31A and a hole 35 is formed at both sides of the latching protrusion 33a And can be fastened to the shelf 30 by a normal bolt.

The fixing table 31B is provided with a seating portion 36a and a lid 36b, a circular plate 37 and a connecting portion 38. [ The seat portion 36a is opened from the seat portion 36a by being hinged to the seat portion 36a and pivoting. The circular plate 37 is a portion that is seated in the circular groove 34 of the pedestal 31A and the connecting portion 38 is a portion that integrally binds the seat portion 36a and the circular plate 37, And the circular plate 37 is formed to be relatively narrow.

The seat portion 36a is provided with a cushioning member 39a for alleviating an external shock applied to the underground electric wire laid on the cushioning member 36a. The buffer member 39a may be a rubber, a sponge or the like as a normal elastic member. For example, when the cover 36b is closed by holding the underground wire with an elastic repulsive force, the elastic member protects the underground wire from an external impact. Similarly, the inner surface of the lid 36b is also provided with such a buffer member 39b. The reason why the buffer members 39a and 39b are formed to be narrowed to the center is to induce the underground wires to be positioned at the center without being biased to one side so as to increase buffering effect.

The cushioning members 39a and 39b can be periodically replaced in preparation for deterioration of the cushioning performance by allowing the cushioning members 39a and 39b to be easily detached from the fixing table 31B (for example, with a double-sided tape or with a Velcro tape).

Also, when the fixing table 31B is broken, only a new fixing table can be prepared and replaced with the existing table, so that maintenance is easy. As shown in the drawing, the fixing table 31B may have a generally rectangular shape but is not limited thereto, and may have various shapes such as a circle or a triangle.

The lid 36b is made of a flexible material, and even if a large number of electric wires, which are difficult to accommodate in the space of the seating part 36a, are accommodated, the lid 36b can be sufficiently secured. A hole 36c extending from the lid 36b to the seating portion 36a is formed so that the bolt is engaged with the hole 36c and the lid 36b is kept closed by the seating portion 36a.

The circular plate 37 of the fixing table 31B is seated in the circular groove 34 of the pedestal 31A by fitting the circular plate 37 of the fixing table 31B into the space 33 of the pedestal 31A Rotation is possible, but sliding is limited.

7 is a front view showing a state in which a main component in an underground pipe is added, and FIG. 8 is a front view showing an operation state of FIG. 7. The same components as those described above are denoted by the same reference numerals, The description is omitted.

As shown in these drawings, the present invention includes a base 20 installed on the inner bottom of the underground pipe 10, a shelf 30, a sensing panel 40, and a control unit 50 It has a basic configuration.

A guide plate 60 disposed between the support plate 60 and the base 20 and extending through the respective shelves 30 and the sensing panel 40; A pair of motors 62 for moving the shelf 30 and the sensing panel 40 upward and downward at the same time and a plurality of motors 62 wound around the pulleys of the motors 62, A wire 63 mounted on the sensing panel 40, an operation panel 64 for controlling the forward and reverse rotation of the motor 62 and a liquid sensing sensor 65 ).

A stopper 66 is provided at both ends of the shelf 30 to maintain a space between the shelves 30. A switch 67 mounted on the lower end of the shelf plate 60 and operated by a stopper 66 And a support block 68 installed at the lower center of the underground pipe 10.

The central portions of the shelves 30 and the sensing panel 40 are disposed to face each other through the supports 21 and are configured to be able to move up and down along the supports 21, The sensing panel 40 can be moved up and down in steps.

The guide rods 61 are interposed between the shelf 30 and the sensing panel 40 so as to suppress the flow of the shelf 30 and the sensing panel 40, A motor 63 is provided at the upper end of both sides and rotated in forward and reverse directions in response to a signal from the operation panel 64. A wire 63 is coupled to a pulley mounted on the shaft of the motor 62, .

The wire 63 is fixed to the shelf 30 disposed at the lower end of the shelf 30 through the respective shelves 30. A stopper 66 is installed at both ends of the shelf 30, The stopper 66 can stop the driving of the motor 62 by operating the switch 67 mounted on the lower side of the support plate 60. [

A support block 68 is installed at the center of the bottom of the underground pipe 10 to support the shelf 30 and the sensing panel 40. Both sides of the support block 68 detect whether the water is submerged A liquid detection sensor 65 is embedded.

According to the present invention, it is possible to dispose the working wire L on the multi-stage shelf 30 provided in the underground pipe 10 as before, 30) in a stepwise manner to prevent the occurrence of an electric shock accident.

That is, water is generated at the bottom of the underground pipe 10, and the liquid sensor 65 senses this, and the motor 62 is activated by a signal from the operation panel 64, The wire 63 is lifted up through the pulley mounted on the shaft and the shelf 30 and the sensing panel 40 bound to the wire 63 are moved upward.

The stoppers 66 provided on both sides of the shelf 30 can keep the shelves 30 spaced apart from each other and the stoppers 66 provided on the shelf 30 at the uppermost stage can be held by the support plates 60 The operator can stop the operation of the motor 62 by touching the switch 67 provided on the lower side.

Thus, the working wire L that is seated on the shelf 30 can be protected from the water flooded to the bottom of the underground pipe 10 while being disposed upward as a whole.

The worker operates the operation panel 64 to rotate the motor 62 in the reverse direction when the inside condition of the underground pipe 10 is adjusted and the wire 63 wound on the pulley is released, And the sensing panel 40 are gradually lowered due to their own weight. Whereby each shelf 30 can stably reach its original position along the guide rods 61 and can be held on the support block 68. [

As described above, according to the present invention, because the shelf is arranged in a multi-stage inside a conventional underground tube, the underground wires can be securely fixed at regular intervals, and thus the flow is prevented. Even when the shelf is moved, Since the information about the underground cable is transmitted to the ground worker, the maintenance can be performed quickly.

In addition, when the bottom of the underground pipe is filled with water, the shelf on which the underground wire is placed can be moved upward, thereby preventing the occurrence of safety accidents due to electric shock.

Although the present invention has been fully described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it is to be understood that the invention is not limited thereto. It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

10: underground pipe 11: accommodation space
20: base 21: support
30: shelf 31A: pedestal
31B: fixed base 32: wire binding member
33: space 33a:
34: Circular groove 35: Hole
36a: seat part 36b: cover
37: circular plate 38:
39a, 39b: buffer member 40: sensing panel
51: control unit 52: abnormal position confirmation unit
53: radio transmission unit 301:
60: Support plate 61: Guide rod
62: motor 63: wire
64: Operation panel 65: Liquid detection sensor
66: Stopper 67: Switch
68: Base block

Claims (1)

A base (20) having a rectangular bottom tube (10) buried in the basement and having a receiving space (11) inside, a support base (21) disposed on the bottom surface of the underground tube and installed in a vertical direction, A sensing panel 40 attached to the lower side of the shelf 30 to sense the flow of the ground wire L placed on the upper surface of the shelf 30, And a control unit (50) for detecting an abnormal signal detected by the panel and sending information on the abnormality to an operator on the ground,
On the shelf 30 are provided a pedestal 31A formed with a space 33 having a latching protrusion 33a for mounting the underground wire L and having a circular groove 34 formed on the inner surface of the shelf 30 and a cushioning member 39a A wire binding member 32 made of a fixed base 31B having a seating portion 36a formed therein and a cover 36b hinged to be opened and closed on the seating portion and having a buffer member 39b formed on the inner surface thereof is mounted,
The sensing panel 40 is provided with a photo sensor S having a light emitting portion and a light receiving portion at positions corresponding to the underground wires L mounted on the respective shelves 30 to detect whether the underground wires L are arranged on the lower side of the shelves,
The control unit 50 includes an abnormal position determining unit 52 for detecting the unique information of the underground pipe 10, the shelf 30 and the underground wire L according to the sensing signal provided from the sensing panel 40, A control unit 51 for converting the information provided by the position confirmation unit 52 and the additional information of the ground wire L previously stored into monitoring information that can be read by an operator on the ground, And a wireless transmission unit (53) for wirelessly transmitting data to an operator on the ground,
The underground pipe 10 is provided with a guide rod 61 penetrating through the support plate 60, each shelf 30 and the sensing panel 40, a pair of motors for moving the shelf and the sensing panel upward and downward, 62, a wire 63 wound around a pulley of these motors and attached to each of the shelves and the sensing panel, an operation panel 64 for controlling the forward and reverse rotation of the motor, A stopper 66 for maintaining a gap between the shelves, a switch 67 mounted on the lower end of the plate and operated by a stopper, a support block 68). ≪ / RTI >

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