KR101352050B1 - Fixing apparatus of electric power cable with very high voltage in underground manhole - Google Patents

Abstract

The present invention relates to an underground electric line fixing apparatus dedicated for a very high voltage transmission and distribution cable for being installed within a concrete power unit buried underground and binding the underground electric lines for transmitting or distributing the electricity with a very high voltage. The present invention comprises: a flat panel; a pair of placing stands and a pair of lifting members installed at the flat panel; and a rack and pinion for making the lifting members ascend or descend. Each of the lifting members is maintained by a bolt and a nut inserted into and coupled to a first guide hole of the flat panel and concurrently is bound by a connection plate installed at a rear part of the flat panel. A cover, rotating around a hinge and coupled to the hinge with a fixing screw, is arranged on a support surface of the lifting member to cover the underground electric line. The rack is maintained by a pair of guide pins inserted into a second guide hole formed at the flat panel. The pinion has a gear part geared with that of the rack, and forms a knob and a rotary shaft inserted into a hole of the flat panel.

Description

Fixing apparatus of electric power cable with very high voltage in underground manhole}

The present invention relates to an underground cable anchor for exclusive use of the high voltage electric transmission line, and more particularly, the high voltage electric transmission and distribution for binding the underground cable for transmitting or distributing the high voltage electricity installed inside the concrete power outlet buried underground. It is about underground wire anchor for exclusive use.

In general, electricity generated at a voltage of about 20,000 V from a power generating facility such as a thermal power plant, a hydro power plant, or a nuclear power plant is boosted to an ultra-high pressure (154 KV or 345 KV) suitable for power transmission. Power is sent to the car substation.

At the primary substation, the super-high voltage electricity is lowered to 22.9 KV, which is the special high voltage, and the electricity is transmitted or distributed to each general customer along the secondary substation or each substation located near the large-capacity customer.

The electricity distributed from the first substation or the second substation is delivered to the reception facilities of each customer through the transmission and distribution system composed of the processing distribution line and the underground distribution line and is distributed to the low pressure customer through the special high pressure customer, the high pressure customer and various outdoor installation transformers, , And for home use.

Traditionally, transmission and distribution have a way of using the ground or using the ground. In the transmission and distribution method using the underground, the underground pipes are arranged to maintain a constant interval in the vertical, vertical, left and right directions, and the cable or underground cable is installed to transmit and distribute power in the holes formed in the underground pipe.

There is a problem in that it is difficult to keep the spacing of the underground pipes constant and to keep the arrangement interval of the ground in the ground constant.

In the prior art, the underground pipes are filled with sand at a constant height in the bottom of the excavated ground using wood plywood, and the gap between the underground pipes is maintained at the same time as the sand while maintaining the distance between the underground pipes using spacers. Complete the layout of underground pipes, complete the construction by removing and backfilling the wood plywood and spacers.

However, this prior art is difficult to maintain the location of the underground pipe structure constructed when there is a slope or groundwater leaching.

In view of such a problem, Korean Unexamined Patent Publication No. 2011-0122279 (published on November 10, 2011) discloses a prefabricated power bulb joining device for underground transmission and distribution.

That is, FIG. 1 is a functional configuration diagram of a ground power distribution assembly power unit bonding apparatus according to an embodiment of the prior art, Figures 2a and 2b is a cross-sectional configuration of the projection plate sealing member and ground power distribution block for power assembly. It is explanatory drawing which showed the state installed and acting on.

When described in detail with reference to the accompanying drawings, the prefabricated power bulb junction device for underground transmission and distribution comprises a prefabricated power bulb block 10 and a plurality of projection plate sealing portion 13 for underground transmission.

The prefabricated power bulb block 10 is standardized in a factory and mass-produced, and is generally made to a size that allows a wiring worker to work.

The protruding plate sealing member 13 has a double structure having an outer layer sealing portion 14 made of a resin expanding material and an inner layer sealing portion 15 formed of a natural rubber material, and the outer layer sealing portion 14 is unified in both sides. The plate 16 is formed in the longitudinal direction and is fitted into and fixed to the junction space generated at the time of assembly of each power tool block.

That is, the protruding plate sealing members 13 are respectively inserted into a plurality of spaces formed between the prefabricated electric bulb blocks 10, and the prefabricated electric bulb blocks 10 into which the sealing members 13 are inserted are bolts or wires ( 17 ') is fastened and combined.

This conventional technology has the advantage of preventing the leakage of water inside the prefabricated power bulb block, as well as increasing the size of the internal cavity. There is a problem that cannot be provided.

On the other hand, in consideration of this point, Korean Patent No. 11455356 (2012.05.04.registered) publication can fix the underground cable for special high voltage electric transmission inside the prefabricated power bulb block as described above and maintain the underground cable at the same time. A technique has been disclosed for "underground cable holder for special high voltage electric power transmission and distribution" which can perform maintenance easily.

However, in this case, the body divided into a flat plate on the inner wall of the prefabricated power bulb block and the body moving up and down between them must be manufactured separately to form a stator, and then assembled together with each other. It also involves the hassle of lifting.

In addition, since the underground wire is only placed on the shelf or the lifting part, when an external force such as vibration is applied, the underground wire may fall down and damage the underground wire.

Korean Patent Laid-Open No. 2011-0122279 (published on November 11, 2011), Title of invention: Republic of Korea Patent No. 11455356 (2012.05.04. Registration), the name of the invention: special high voltage electric transmission line underground cable fixture.

The present invention has been proposed to solve the above problems, an object of the present invention is to facilitate the maintenance of underground cables for transmission and distribution inside the prefabricated power bulb block in the prior art, as well as in particular the wires on the stator The present invention provides an underground cable holder exclusively designed for high voltage electric transmission lines that can prevent deviations and perform maintenance more conveniently.

In order to achieve the above technical problem, the present invention accommodates a sealing member in the joint space generated when assembling an electric power supply block for underground transmission and distribution, and the sealing member is made of an outer layer sealing portion made of a resin expanding material and a natural rubber material. It is a double structure having a formed inner layer sealing portion, the outer layer sealing portion is formed in the longitudinal direction of the integrated plate extending in both sides, the underground cable fixture for exclusive high voltage electric transmission line is installed in the inner space of the prefabricated power bulb block The flat panel is installed on one inner wall of the prefabricated power bulb block and has a pair of first guide holes and a single second guide hole, respectively, and is fixed to the front of the flat panel horizontally and has a bottom and A pair of rests having projecting jaws formed in an upward direction to form a right angle with respect to the bottom portion, A pair of lifting members arranged horizontally on the front surface of the plate-shaped panel to maintain the same height as the rest platform, and having a support surface, and a rack having a gear part disposed on one side in a vertical direction at a lower end of the one lifting member; And a pinion for moving the rack in an up and down direction by engaging and rotating the gear part of the rack, wherein each lifting member is held by bolts and nuts which are fitted into and fastened to the first guide holes of the flat panel, respectively. At the same time, it is bound to each other by a connecting plate mounted on the rear panel of the flat panel, the cover is rotated about the hinge to the center of the lifting member is provided with a cover that is fastened as a fixing screw is configured to cover the underground wire, The rack is provided by a pair of guide pins fitted into the second guide holes formed in the flat panel. Is configured such that if, said pinion is characterized by a rotating shaft having a gear portion meshing with the gear portion of the rack is fitted into the through hole of the handle and the plate-like panel is formed, respectively.

According to the underground cable holder for special high-voltage electric transmission line according to the present invention, it is possible to easily fix the underground cable inside the assembled power-bulb block of the conventional configuration, as well as to simplify the configuration of the fixture itself to reduce the cost By the lifting member mounted on the fixing stand, the underground wire can be moved up and down, and maintenance can be performed more conveniently.

Furthermore, since the underground wires mounted on the lifting members can be easily fixed, the ground wires can be easily prevented from falling down, thereby preventing the occurrence of safety accidents.

1 is a functional configuration diagram of a prefabricated electric power splicing device for underground transmission and distribution according to the prior art,
2A and 2B are cross-sectional views of the sealing member shown in FIG. 1 and a state of being installed and acting on a prefabricated electric power block for underground transmission;
Figure 3 is a perspective view for explaining the configuration of the underground cable holder for special high voltage electric transmission line according to the prior art,
Figure 4 is an exploded perspective view showing the configuration of the underground wire holder shown in Figure 3,
5 is an explanatory diagram of a state in which the high voltage underground cable is maintained by the underground cable holder;
Figure 6 is an assembled perspective view showing the configuration of the underground cable holder for special high voltage electric transmission line according to the present invention,
7A and 7B are front and rear configuration views of FIG. 6,
FIG. 8 is a cross-sectional configuration diagram illustrating a binding state of the flat panel and the lifting member illustrated in FIG. 6;
9 is a cross-sectional configuration diagram showing another example of the cover.

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 is a more effective modification of the technical spirit of the registered patent No. 1145356 (2012.05.04. Registration) mentioned above in the prior art "special high voltage electric transmission and distribution underground cable holder."

Therefore, the configuration, features, and operation relations described below will be referred to the contents of the Patent No. 1145356, and will be described in detail with respect to the configuration and operation relations associated with the main features of the present invention.

Figure 3 is a perspective view for explaining the configuration of the underground cable holder dedicated to high voltage electric transmission, Figure 4 is an exploded perspective view showing the configuration of the underground cable holder shown in Figure 3, Figure 5 is a high voltage underground cable by the underground cable holder An explanatory diagram of a state in which maintenance is performed.

Referring to these drawings, the ground wire fixture 1000 is installed on one inner wall surface of the prefabricated power bulb block 10 as shown in FIG. 1 to fix the high-pressure underground wire 2000.

In addition, the underground wire holder 1000 may conveniently carry out maintenance and repair by lifting a portion of the extra-high voltage underground wire 2000 inside the prefabricated power bulb block 10.

That is, the special high voltage electric transmission and distribution underground cable holder 1000 is the first body portion 1100, the shelf portion 1200, the elevating gear portion 1300, the second body portion 1400, the lifting portion 1500, lifting Gear portion 1600, the third body portion 1700 is configured to include.

The first body part 1100 is formed in a rectangular shape and is fixed to the inner wall of the prefabricated electric bulb block 10 in the longitudinal direction, and includes a first guide hole 1110, a first guide jaw 1120, and a first The first screw hole 1130, the second screw hole 1140, the gear hole 1150, the first fixing screw 1160, and the second fixing screw 1170 are included.

The first guide hole 1110 is formed at a portion where the first body portion 1100 is interviewed with the prefabricated power bulb block 10 for underground transmission and distribution, and is formed at an end of the left side of the first body portion 1100. 2 The right side of the body portion 1400 supports so as not to deviate from the defined track.

The first guide jaw 1120 is formed at a portion where the first body portion 1100 is interviewed with the prefabricated power bulb block 10 for underground transmission and distribution, and is formed at an end of the left side of the first body portion 1100. 2 The right side of the body portion 1400 slides smoothly in the up and down direction along a predetermined track.

The first screw hole 1130 is formed through the four corner portions of the first body portion 1100 forming a rectangular shape, respectively. Since the first fixing screw 1160 penetrates the four first screw holes 1130 and is fixed to the wall surface of the prefabricated power bulb block 10, the first body part 1100 is a wall surface of the prefabricated power bulb block 10. To be fixed in place.

The second screw hole 1140 may be formed by four penetrating through a portion of the first body portion 1100 having a rectangular shape, and the second fixing screw 1170 may be inserted therein, and the gear hole 1150 may have a rectangular shape. One is formed in the lower left portion of the first body portion 1100.

The shelf part 1200 forms a plurality of screw holes in a portion not shown in the drawing, and the second fixing screw 1170 and the screw inserted from the rear surface of the first body part 1100 at the front of the first body part 1100. Because it is coupled is installed in a fixed state on the front of the first body portion 1100.

Shelf portion 1200 is fixed to be installed in parallel to the bottom of the prefabricated power bulb block 10, a plurality of shelves each 1200 are installed in parallel to each other, the shelf portion 1200 is a prefabricated power bulb block ( 10 is provided with a shelf bottom 1210 forming a surface parallel to the bottom surface of the shelf 10, a shelf jaw 1220 protruding in a direction perpendicular to the shelf bottom 1210.

The lifting gear part 1300 is configured to slide the second body part 1400 in the up or down direction by rotation, and includes a rotation shaft 1310, a first gear 1320, and a rotation knob 1330.

The rotary shaft 1310 may be inserted into the gear groove 1150 by an external force to be fixed or separated from the gear groove 1150 by an external force, and the rotary shaft 1310 may be inserted into the gear groove 1150 to be centered. It can rotate around its axis.

The first gear 1320 forms a disk of constant thickness and forms a gear on an outer circumferential surface of the disk, and the first gear 1320 is installed on a part of the rotation shaft 1310 and has the same center as the center of the rotation shaft 1310. Have

The rotary knob 1330 is formed in a L-shape and is connected to the rotary shaft 1310 to transmit a rotary driving force applied from the outside.

The second body portion 1400 is installed in a rectangular shape at a left position of the first body portion 1100 on the inner side wall of the prefabricated power bulb block 10, and the second body portion 1400 is in a lengthwise direction above and below. Can be installed and sliding.

The second body portion 1400 includes a first sliding rail 1410, a first sliding jaw 1420, a second sliding rail 1430, a second sliding jaw 1440, a third screw hole 1450, and a fourth It is configured to include a screw hole (1460).

The first sliding rail 1410 is formed at the right end of the second body portion 1400 and protrudes from a portion where the second body portion 1400 is interviewed with the prefabricated power bulb block 10, and the first body portion ( Smoothly slides a predetermined track in the up or down direction along the first guide jaw 1120 of 1100.

The first sliding jaw 1420 is formed at the right end of the second body portion 1400 and is a portion at which the first sliding rail 1410 starts and supports the second body portion 1400 so as not to deviate from a predetermined track. .

The second sliding rail 1430 is formed at the left end of the second body portion 1400, and the second body portion 1400 is formed to protrude in a portion where the prefabricated power bulb block 10 is in contact with the third body portion. Smoothly slides a predetermined track in the up or down direction along the second guide jaw 1720 of 1100.

The second sliding jaw 1440 is formed at the left end of the second body portion 1400 and is a portion where the second sliding rail 1430 starts and supports the second body portion 1400 so as not to deviate from a predetermined track. .

The third screw hole 1450 is formed in a state in which four are penetrated in the center portion of the second body portion 1400, and four third fixing screws 1470 are inserted from the back, respectively, and the fourth screw hole 1460. ) Is formed in the lower right portion of the second body portion 1400 and forms a screw thread.

The lifting unit 1500 forms a plurality of screw holes in portions not shown in the drawings, and the plurality of third fixing screws 1470 inserted from the rear surface of the second body unit 1400 at the front of the second body unit 1400. And screwed so that it is installed in a fixed state on the front of the second body portion (1400).

The lifting unit 1500 is fixedly installed in parallel with the bottom of the prefabricated electric bulb block 10 and is formed in plurality and installed in parallel with each other, and the lifting unit 1500 is parallel to the bottom of the prefabricated electric bulb block 10. The cable support surface 1510 to form a, and a load bearing surface 1520 to support the cable support surface while forming an inclined surface.

The lifting gear part 1600 forms a plurality of gears on a straight side of the right end portion, and the gears are in contact with the first gear 1320 to receive an external force by driving the elevating gear part 1300. Can be.

The lifting gear unit 1600 includes a plurality of fourth fixing screws 1480 inserted through the plurality of screw holes 1610, and the fourth fixing screws 1480 are coupled to the threads formed in the fourth screw holes 1460. Therefore, it is installed in a fixed state in the lower right front of the second body portion 1400.

The third body part 1700 is formed in a rectangular shape and is fixedly installed in the longitudinal direction of the inner one side wall of the prefabricated electric bulb block 10 in the longitudinal direction. The second guide hole 1710, the second guide jaw 1720, A plurality of fifth screw holes 1730 is included.

The second guide hole 1710 is formed at the portion where the third body portion 1700 is interviewed with the prefabricated electric bulb block 10, and is formed at the right side end portion of the third body portion 1700 to form the second body portion. The left side of the 1400 is supported so as not to deviate from the defined trajectory.

The second guide jaw 1720 is formed at a portion where the third body portion 1700 is interviewed with the prefabricated electric bulb block 10, and is formed at an end portion of the right side of the third body portion 1100 so that the second body portion is formed. The left side of the 1400 gently slides in the up and down directions along a predetermined track.

The fifth fixing screw 1740 is inserted into the plurality of fifth screw holes 1730 and fixed to one side of the prefabricated electric bulb block 10, so that the third body part 1700 is connected to the prefabricated electric bulb block 10. Can be fixed on one side.

When an external force is applied to the elevating gear unit 1300 by the above configuration, the first gear 1320 transfers an external force to the lifting gear unit 1600 to move the lifting gear unit 1600 in the up and down direction. By the vertical movement of the lifting gear portion 1600, the second body portion 1400 slides in the up and down direction.

At this time, the second body portion 1400 is smoothly slid up and down by the first guide jaw 1120 and the second guide jaw 1720. Since the second body part 1400 slides up and down, the lifting part 1500 slides together in the up and down direction.

Shelf 1200 and the lifting unit 1500 has a number of special high-pressure coaxial cable (2000) in the interior of the prefabricated power bulb block 10 has the advantage of minimizing the risk of electric shock, short circuit and short circuit.

In addition, the extra-high pressure underground wire (2000) fixed to the shelf 1200 and the lifting unit 1500 can be secured to a space for the operator to maintain a portion while moving a portion in the up and down direction.

The above description is the contents of the registered patent No. 1145356, the main features of the present invention includes these technical ideas, but it is further shown in Figures 6 to 9 further improved.

6 is an assembled perspective view showing the configuration of the underground cable holder for the special high-voltage electric transmission line according to the present invention, Figure 7 is a front configuration of Figure 6, Figure 8 is a binding state of the flat panel and the lifting member shown in Figure 6 9 is a cross-sectional configuration diagram showing another example of a cover.

As shown in these drawings, the underground cable holder for the special high voltage electric transmission line according to the present invention includes a flat panel 20, a pair of resttables 30 and lifting respectively mounted on the flat panel 20. The member 40 and the rack 50 and the pinion 60 for raising and lowering the lifting member 40 are comprised.

The flat panel 20 is installed at one inner wall surface of the prefabricated power bulb block, and a pair of first guide holes 21a and 21b are formed in a vertical direction, and a single unit is formed at a lower end of the right first guide hole 21b. Second guide holes 22 are formed in the vertical direction, respectively.

The pair of rest rests 30 is horizontally fixed to the front of the flat panel 20 and has a bottom portion and a protruding jaw formed in an upward direction to form a right angle with the bottom portion.

The pair of lifting members 40 are horizontally disposed on the front surface of the flat panel 20 and are installed to maintain the same height as the rest table 30 and have a supporting surface 41a.

Each lifting member 40 is held by a bolt 23a and a nut 23b which are fitted into and fastened to the first guide holes 21a and 21b of the flat panel 20, respectively. It is tied together by the connecting plate 24 mounted in the back part.

In addition, on the support surface 41a of the lifting member 40, a cover 44 which is rotated about the hinge 42 and fastened as a fixing screw 43 is provided to cover the underground wire W. In addition, it is preferable to secure the adhesive force with the underground wire (W) through the pressing pad 45 inside the cover 44.

In addition, as shown in FIG. 9, when the underground wire W is constructed with a plurality of strands, a cover 44A having a partition therein can be used, and in this case, the crimp pad 45A is provided inside the cover 44A. ) Can be secured with the underground wire (W) through the gap can be maintained as well as the gap between the underground wire (W).

The rack 50 is maintained by fitting a pair of guide pins 51a and 51b into the second guide hole 22 formed in the flat panel 20, and a gear part at a side portion of one side lifting member 40. 51c is formed.

The pinion 60 has a gear portion 61a meshing with the gear portion 51c of the rack 50 and has a rotation shaft 61c fitted to the through hole 25 of the handle 61b and the flat panel- Respectively.

According to the present invention, when the underground wires W are to be installed in the assembled power bulb block 10 shown in FIG. 1, the underground wires are connected by using a pair of the support 30 and the lifting member 40. (W) can be mounted.

Since the cover 44 pivoting around the hinge 42 is mounted on the lifting member 40, the cover 44 is mounted on the underground wire W and the fastening screw 43 is fastened to the assembled power tool. Even if an external force acts on the block 10, there is no fear that the underground wires W will deviate from the flat panel 20.

In addition, the pressing pad 45 is interposed inside the cover 44 to sufficiently secure the adhesive force with the underground wire W, and even when the underground wire W is hypothesized in several strands, as shown in FIG. Similarly, the partitions 45A formed in the cover 44A can be used to maintain the mutual gaps.

On the other hand, when it is necessary to perform the maintenance of the underground wire W, by holding the handle 61b of the pinion 60 and rotating it, the center of the rotation shaft 61c fitted in the through hole 25 of the flat panel 20 is centered. The rack 50 engaged with the gear portion 61a of the pinion 60 moves upward along with the guide pins 51a and 51b fitted in the second guide hole 22 of the flat panel 20 while rotating. Done.

As a result, the pair of lifting members 40, which are integrated with each other by the connecting plate 24 via the bolts 23a and the nuts 23b, are moved upward to push the ground wire W upward, And the lifting member 40 can be returned to the home position by rotating the pinion 60 in the opposite direction.

Therefore, as in the past, the body divided into a flat plate type on the inner wall of the prefabricated power bulb block 10 is not necessary to construct and assemble the stator, and also to lift the underground wire (W) by operating the stator itself. It is possible to prevent the hassle and to prevent the occurrence of safety accidents by blocking the deviation of the underground wire (W) by the external force.

1000: underground cable fixing base 1100: the first body portion
1200: turning part 1300: lifting gear part
1400: second body portion 1500: lifting part
1600: lifting gear part 1700: third body part
20: flat panel 21a, 21b: first guide hole
22: second guide hole 23a: bolt
23b: nut 24: connecting plate
25: through air 30: rest
40: lifting member 41a: support surface
42: hinge 43: fixing screw
44,44A: Cover 45,45A: Compression pad
50: rack 51a, 51b: guide pin
51c: Gear 60: Pinion
61a: gear 61b: handle
61c: rotation axis

Claims (1)

The sealing member 13 is accommodated in the joint space generated at the time of assembling the assembled electric bulb block 10 for underground transmission and distribution, and the sealing member 13 is made of an outer layer sealing portion 14 made of a resin expanding material and a natural rubber material. The inner layer sealing portion 15 is a dual structure, the outer layer sealing portion 14 has an integral plate 16 extending in both sides is formed in the longitudinal direction, the underground wire in the inner space of the prefabricated power bulb block In the underground cable holder for exclusive use of the extra-high voltage electric transmission line to be installed,
A flat panel 20 installed on one inner wall of the prefabricated electric bulb block and having a pair of first guide holes 21a and 21b and a single second guide hole 22, respectively;
A pair of resttables 30 fixedly installed horizontally on the front of the flat panel 20 and having a bottom portion and a protruding jaw upwardly formed at right angles to the bottom portion;
A pair of lifting members 40 disposed horizontally in front of the flat panel 20 and installed to maintain the same height as the rest table 30 and having a support surface;
A rack 50 disposed in a vertical direction at a lower end of the one side lifting member 40 and having a gear part at one side thereof;
It is made of a pinion 60 to move the rack in the vertical direction by rotating in engagement with the gear portion of the rack 50,
Each of the lifting members 40 is held by bolts 23a and nuts 23b that are fitted into and fastened to the first guide holes 21a and 21b of the flat panel 20, and at the same time, the flat panel 20 Are bound to each other by a connecting plate 24 mounted to the rear portion of the
On the support surface 41a of the lifting member 40, a cover 44 which is pivoted about the hinge 42 and fastened as a fixing screw 43 is provided to cover the underground wire W.
The rack 50 is configured to be held by a pair of guide pins 51a and 51b fitted into the second guide hole 22 formed in the flat panel 20,
The pinion 60 has a gear portion 61a which meshes with the gear portion 51c of the rack 50 and has a handle 61b and a rotating shaft 61c fitted into the through hole 25 of the flat panel 20. Underground cable holder for special high-voltage electric transmission line, characterized in that each is formed.

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