KR20140102406A - diverging device for bus duct - Google Patents

Abstract

Disclosed is a diverging device for a bus duct. According to diverging device for a bus duct according to the present invention, the present invention prevents the generation of an accident such a fire and the like in advance by accurately performing the electric connection of the diverging device for a bus duct and easily checking a connection error, quickly places the diverging device for a bus duct in an accurate connection position, and easily performs a connection process even on a high-capacity bus duct without great power.

Description

[0001] The present invention relates to a diverging device for bus duct,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branching device for a bus duct, and more particularly, to a branching device for a bus duct that can easily perform an electrical connection and easily detect a connection failure to prevent an accident from occurring.

Generally, cables have been used as a medium for transferring electrical energy. Recently, bus ducts have been used as a substitute for cables. The bus duct is equipped with a bus bar that acts as a conductor core included in the cable and has the advantage of energizing a large amount of current.

Originally, in the power wiring method, the wiring method by the wire cable has been widely used. However, in a wiring method of a high-rise building or a large-scale factory, a wiring method by a bus duct having a bus bar gradually Is increasingly adopted.

These booth ducts and cables have commonality in that they have conductors and insulators, but cables use vinyl or rubber to protect or insulate conductors, but booth ducts carry large amounts of current through the conductors, making them difficult to protect directly as insulators There is a difference in that the insulator is coated on the bus bar and the bus bar is embedded in the metal duct.

Such a booth duct is widely used in a place where a relatively large amount of electric power is used because it is easy to expand and install the booth duct and can be quickly recovered when the abnormality or an accident occurs on the power wiring of the bus bar.

Moreover, since the electricity supply system of the current building requires energy of large and diverse capacity as compared to the past, the use of bus ducts which are safe and have low energy loss is rapidly increasing in accordance with this trend.

For example, booth ducts can be used in a variety of industries such as factories, buildings, apartments, large discount marts, officetels, research complexes, department stores, golf courses, tunnel semiconductors, LCD plants, chemicals, refineries, steel mills, high-rise buildings, And is being applied to facilities in various fields.

The booth bar provided in the booth duct is usually provided inside the duct of a predetermined size in a state isolated from the outside because a high-voltage current flows. The booth duct including such a booth bar is a unit having a certain length After it is manufactured, it is connected to the facilities to be installed and the distribution design.

However, in order to supply electric power to a large number of electric devices installed in a building having a complicated structure, it is difficult to construct a distribution system by only connecting such a booth duct itself, so a branching device capable of branching electricity in a bus duct is required, As such a branching device, a PH box (Plug in Hole box) is usually used.

The PA box is also referred to as a plug-in unit (PIU) or a tap-off box, and is electrically connected to the bus duct, and then connects a plurality of cables to supply electricity to branch .

However, when the branching device is used, it is very important to accurately connect the booth duct to the booth duct where the high-voltage current flows, because an accident such as a fire may occur. However, It can not be determined whether the normal connection is made depending on the skill level of the operator.

Also, since the branching device connected to the bus duct of a large capacity increases in size, it is not easy to arrange it in the correct connecting position, and the rigidity of the connecting portion also increases.

Accordingly, there is a need for a branching device for a bus duct that can easily perform electrical connection and easily identify a faulty connection, thereby preventing an accident from occurring.

Embodiments of the present invention intend to precisely perform an electrical connection of a branching device for a bus duct and to easily check faulty connection to prevent the occurrence of an accident such as a fire.

In addition, the booth duct branching device is arranged in a precise connection position in a short period of time, so that the work can be performed quickly.

Also, it is an object of the present invention to provide a branching device for a bus duct that can easily perform a connecting operation without applying a large force even in a large-capacity bus duct.

According to an aspect of the present invention, there is provided a bus system comprising: a body forming an outer shape; a plurality of connection terminals provided in the body, the cables being connected and branched; A plurality of connection portions provided at one side of the body so as to insert a tap bar electrically connected to a bus bar and an identification member indicating whether the tap bar is normally inserted into the connection portion and electrically connected thereto A branching device for a bus duct may be provided.

The identification member may include a marking portion that moves according to a depth at which the tab bar is inserted.

The identification member may include a contact portion for moving the marking portion as the tab bar is inserted into contact with the end of the tab bar, and a resiliently deforming portion as the marking portion is inserted by insertion of the tab bar, And a resilient deforming portion for providing a restoring force for moving the marking portion to the original position.

The identification member may include a protrusion formed on one of the tab bar or the connection portion and an insertion groove formed on the other of the tab bar or the connection portion to correspond to the protrusion.

The identification member may further include an alarm unit for indicating that the tab bar is normally connected to the connection unit when the protrusion is seated in the insertion groove.

Meanwhile, one end of the tab bar may be formed with a chamfer for insertion so as to be smoothly inserted into the connection portion.

The other end of the tab bar may be formed with a chamfer for welding base material for welding connection of the bus bar.

And a contact prevention unit provided at an upper end of the tab bar to prevent a finger of a user from contacting the finger.

Further, a guide pin coupled to the lower surface of the body and an insertion hole formed on the upper surface of the bus duct to insert the guide pin may be further included.

At this time, when the guide pin is inserted into the insertion hole, the tab bar can be connected to the connection portion by tightening with the nut.

And a guide groove that is seated on a guide flange formed on an upper surface of the booth duct.

The cabinet may further include a fixing and guide bracket rotatably installed to fix the body to the booth duct after the body is seated on the upper surface of the booth duct.

The fixing and guide bracket includes an insertion tip at one end. When the fixing and guide bracket are rotated, the insertion tip is seated in a fixing groove of the bus duct to fix the body.

A moving body having an insertion protrusion that moves along a guide hole formed in the fixing and guide bracket, and a fixing body connected to the moving body by a bolt and movably supporting the moving body.

The moving body moves vertically as the nut coupled to the bolt rotates. As the moving body moves up and down, the insertion protrusion is guided along the guide hole to rotate the fixing and guide bracket.

According to another aspect of the present invention, there is provided a bus system comprising: a body forming an external shape; a plurality of connection terminals provided in the body, the cables being connected and branched; A plurality of connecting portions provided at one side of the body for inserting a tap bar electrically connected to a bus bar and a plurality of connecting portions connected to the body and inserted into insertion holes provided in the bus duct, A guide pin for fixing the guide pin to the branch duct can be provided.

According to another aspect of the present invention, there is provided a bus bar, comprising: a plurality of connection terminals provided in the body; a plurality of connection terminals to which a cable is connected and which is branched; and a bus bar electrically connected to the connection terminal, A plurality of connecting portions provided at one side of the body for inserting a tap bar electrically connected to the bus duct, and a fixing and guide bracket rotatably fixed to the bus duct, Can be provided.

According to another aspect of the present invention, there is provided a bus duct comprising: a body forming an outer shape; a plurality of connection terminals provided in the body, the cables being connected and branched; A plurality of connecting portions provided at one side of the body for inserting a tap bar electrically connected to a bus bar and a guide groove mounted on a guide flange formed on an upper surface of the bus duct, A branching device may be provided.

Embodiments of the present invention can precisely perform electrical connection of a branching device for a bus duct and easily check a connection failure, thereby preventing an accident such as a fire from occurring.

In addition, it is possible to arrange the branching device for booth ducts at a precise connection position within a short time, thereby accomplishing a quick operation.

Further, it is possible to provide a branching device for a bus duct that can easily perform a connecting operation without applying a large force even in a large-capacity bus duct.

1 is a partial perspective view showing a configuration of a booth duct according to an embodiment of the present invention;
2 is an exploded perspective view showing a detailed configuration of a branching device according to an embodiment of the present invention.
3 is an exploded perspective view showing a state where both the fixing and guide brackets of the branching device according to the embodiment of the present invention are assembled.
FIG. 4 is a partial perspective view showing a coupling portion of a branching device according to an embodiment of the present invention.
5 is a perspective view of a branching device according to an embodiment of the present invention,
6 is a partial perspective view showing a structure in which a connection portion of a branching device according to an embodiment of the present invention is exposed.
7 is a plan view showing an internal configuration of a branching device according to an embodiment of the present invention.
8 is a partial structural view showing a structure in which a connecting portion and a tab bar of a branching device according to an embodiment of the present invention are welded to a bus bar
9 is a partial perspective view showing the visual identification member of the branching device according to the embodiment of the present invention.
10 is a partially perspective perspective view showing a configuration of a visual identification member of a branching device according to an embodiment of the present invention;
11 is a diagram showing the configuration of a tactile identification member of a branching device according to an embodiment of the present invention
12 is a block diagram showing an alarm unit of a branching device according to an embodiment of the present invention
13 is a partially enlarged cross-sectional view showing a detailed configuration of a fixing and guide bracket of a branching device according to an embodiment of the present invention
FIG. 14 is a partially enlarged perspective view showing the fixing structure of the branching device and the operation configuration of the guide bracket according to the embodiment of the present invention.
Fig. 15 is a partially enlarged perspective view showing the operation of the fixing and guide bracket of Fig. 14 in a state in which the fixing body is assembled;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Like reference numerals designate like elements throughout the specification.

FIG. 1 is an exploded perspective view showing a detailed configuration of a branching device according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of the present invention Fig. 6 is an exploded perspective view showing a state in which both the fixing device and the guide bracket are assembled according to the embodiment of Fig. FIG. 4 is a partial perspective view illustrating a coupling portion of a branching device according to an embodiment of the present invention, FIG. 5 is a perspective view of a branching device according to an embodiment of the present invention, and FIG. Is a partial perspective view showing a structure in which a connection portion of a branching device according to an example is exposed. 7 is a plan view showing an internal structure of a branching device according to an embodiment of the present invention.

Referring to FIGS. 1 to 7, a branching device for a bus duct according to an embodiment of the present invention includes a body 102 having an outer shape, a plurality of And a tap bar 50 electrically connected to the connection terminal 106 and electrically connected to a bus bar 30 in the bus duct 1 is inserted And an identification member 160 for indicating whether the tab bar 50 is normally inserted into the connection unit 150 and electrically connected to the connection unit 150 .

1, the duct body 10 and the assembly piece 20 are combined to form a passage having a predetermined size, and the bus bar 30 is disposed on the passage. .

A guide flange 12 may be formed on both sides of the upper and lower surfaces of the duct body 10 to facilitate coupling of various members such as a masking mold.

The bus bar 30 may be formed by covering an insulating cover 32 with a plurality of long bar shaped conductors 31. A connecting end 34 is formed at one end of the bus bar 30, (Not shown) to the other bus bars 30 to electrically connect the other bus bars 30 repeatedly.

Meanwhile, the branching device includes a body 102 forming an outer shape, and a body cover 104 is provided at an upper portion thereof so that the inside of the branching device can be opened and closed. A plurality of connection terminals 106 are provided in the body 102, and a power connection can be branched by connecting a cable to the connection terminal 106. A power switch 108 may be provided at one side of the body 102 to open and close the power supply of the cable that is branched through the connection terminal 106.

A first connection part 110 and a second connection part 120 may be provided under the body 102 to be connected to the bus duct 1. The first connection part 110 and the second connection part 120 may be bolted to the lower part of the body 102 and fixed thereto.

Three U-shaped fixing members 40 are coupled from the lower portion of the bus duct 1. Two of the fixing members 40 are fastened to the fastening pieces 116 formed on the first connection portions 110 And the other one is bolted to the lower part of the second connection part 120 to fix the body 102 on the bus duct 1. [

The first connection part 110 may be formed with a connection hole 111 through which the connection part 150 can be exposed. Of course, a hollow (not shown) may be formed in the lower surface of the body 102 in a shape corresponding to the connection hole 111 to expose the connection portion 150 to the lower surface of the body 102.

A coupling portion 11 may be formed on the upper surface of the duct body 10 to expose the tab bar 50 inserted into the coupling portion 150. The coupling portion 11 may be formed in the coupling hole 111, As shown in FIG.

Five tab bars 50 are all exposed to the connection tab 11 and the ground tab bar 50. The connection hole 111 is provided with five connection portions 150 ) Can be exposed. However, the number of the connection portions 150 is not limited to four, six, seven, etc., as needed.

The coupling portion cover 60 is provided at one side of the coupling portion 11 to open and close the upper surface of the coupling portion 11.

A guide pin 114 may be provided on the lower surface of the body 102 and an insertion hole 14 may be formed on the upper surface of the bus duct 1 to allow the guide pin 114 to be inserted and coupled therewith. The guide pin 114 extends through the body 102 and the first connection part 110 and is inserted into the duct body 10 through the insertion hole 14.

When the nut 102 is tightened to the guide pin 114 at the side of the duct body 10 and the body 102 is tightly attached to the booth duct 1, 150).

Since the guide pin 114 is formed at a position corresponding to the insertion hole 14, the guide pin 114 functions to fix the body 102 in a fixed position when the body 102 is coupled to the bus duct 1. In addition, the rigidity of the connection part 150 applied to a large capacity increases so that a very large force is required to insert and connect the tab bar 50. When the guide pin 114 is inserted into the insertion hole 14, The body 102 is closely attached to the booth duct 1 and the tab bar 50 is naturally connected to the connection part 150. This facilitates the connection work by the operator.

Meanwhile, the branching device may include guide grooves 112 and 122 that can be seated in the guide flange 12. [ Specifically, the guide grooves 112 and 122 may be provided in the first connection part 110 and the second connection part 120, respectively. Since the guide flange 12 is provided on both sides of the upper portion of the bus duct 1, The guide grooves 112 and 122 may also be formed on both sides of the lower surfaces of the first connection part 110 and the second connection part 120, respectively.

The guide grooves 112 and 122 guide the body 102 of the branching device so that the body 102 is correctly aligned on the booth duct 1 so that the operator can move the body 102 in a fixed state Can be performed.

8 is a partial structural view showing a structure in which a connection portion and a tab bar of a branching device according to an embodiment of the present invention are welded to a bus bar.

1 to 8, the tab bar 50 may be connected to an upper portion of the bus bar 30 provided in the duct body 10. At this time, the insulating cover 32 of the bus bar 30 may be peeled off and then welded to the conductor 31 inside the insulating cover 32 to be electrically connected and fixed.

The upper end of the tab bar (50) is provided with a contact preventing part (52) for preventing direct contact of a finger of a worker, thereby preventing an electric shock accident that may occur during operation.

The tab bar 50 is inserted into the connection part 150 to electrically connect the bus duct 1 and the branching device and the connection part 150 includes a connection conductor 152 and a deformation restricting part 154 ). ≪ / RTI >

More specifically, the deformation restricting portion 154 is provided outside the connection conductor 152. When the tab bar 50 is inserted, the connecting conductor 152 is prevented from spreading beyond the tip width of the tab bar 50 And the deformation restricting portion 154 may be made of a material having a higher rigidity than the connection conductors 152.

One side of the connection conductor 152 is electrically connected to the bus bar 30 through the tab bar 50 and the other side is connected to a connection conductor 156 electrically connected to the connection terminal 106. Also, since the connection conductor 156 is connected to the connection terminal 106, a plurality of cables can be connected to the connection terminal 106, so that the power transmitted through the bus bar 30 can be branched.

At this time, the connection conductor 152 and the tab bar 50 are in line contact with each other, and from a microscopic point, they are connected through a plurality of point contacts.

Meanwhile, one end of the tab bar 50 may be formed with a chamfer S for insertion so as to be smoothly inserted into the connection part 150. At this time, the insertion chamfer S has a degree of matching between the narrowest width a of the inlet end of the connecting conductor 152 and the width b of the tip end of the tab bar 50 reduced by the insertion chamfer S, .

The other end of the tab bar 50 may be provided with a chamfer S 'for a welding base material for welding connection with the bus bar 30. The other end of the tab bar 50 is welded to the exposed conductor 31 after the insulating cover 32 of the bus bar 30 is peeled off as described above and the chamfer S ' Welded joint can be easily performed by applying the base material to the welded portion.

Fig. 9 is a partial perspective view showing a visual identification member of a branching device according to an embodiment of the present invention, Fig. 10 is a partial perspective view showing a configuration of a visual identification member of a branching device according to an embodiment of the present invention, Fig. 11 is a configuration diagram showing the configuration of a tactile identification member of a branching device according to an embodiment of the present invention. Fig. 12 is a block diagram showing an alarm unit of the branching device according to an embodiment of the present invention.

Referring to FIGS. 1 to 12, the identification member 160 may include a marking portion 162 that moves according to a depth of the tab bar 50 inserted therein. As described above, when the tab bar 50 is not properly connected to the connection part 150, an accident such as a fire may occur. Therefore, it is very important to correctly connect the tab bar 50 to the connection part 150. However, There is a problem.

Accordingly, the branching device of the present invention includes an identification member 160 that can determine whether or not the tab bar 50 is properly connected. Such an identification member 160 may include various sensory means such as the visual, tactile, It is possible to determine whether the tab bar 50 is normally connected or not.

9 and 10, the identification member 160 includes a contact portion (not shown) for moving the mark portion 162 as the tab bar 50 is inserted into contact with the end of the tab bar 50 And the tab portion is elastically deformed as the tab portion is inserted and the tab portion is moved and when the tab bar is separated from the connection portion, And an elastic deforming portion 166 for providing a restoring force for moving the elastic deforming portion 166 to a predetermined position.

10 (a) and 10 (b), the identification member 160 may be provided on one side or both sides of the connection part 150. As shown in FIG. 9 (a) The member 160 is positioned at the basic position and the tab bar 50 is inserted into the connection part 150 to push the contact part 164 upward so that the mark part 162 also moves upward .

9 (b), when the end of the marking portion 162 moving to the upper side of the connection portion 150 reaches a predetermined height, the operator visually confirms this, so that the tab bar 50 is normally connected to the connection portion 150 Can be recognized.

At this time, as the marking portion 162 rises, one end of the elastic deforming portion 166 is elastically deformed while being pressed inside the connection portion 150. When the tab bar 50 is separated from the connection portion 150, The identification member 160 can be returned to the original position by the restoring force provided by the part 166. [

Since the identification member 160 composed of the marking unit 162, the contact unit 164 and the elastic deformation unit 166 can be exposed to heat generated during energization and exhibit a restoring force against deformation, For example, PPO (Polyphenylene Oxide) or a material having similar properties.

11, the identification member 160 may include a protrusion 74 formed on one of the tab bar 50 or the connection part 150, and the protrusion 74 formed on one of the tab bar 50 and the connection part 150, And an insertion groove 174 formed in the other of the tab bar 50 or the connection part 150. [

The protrusion body 72 may be provided on both sides of the tab bar 50 and the insertion groove body 172 may be provided on both sides of the connection part 150. The protrusion 74 may be formed in the protrusion body 72. The insertion groove 174 may be formed in the protrusion 74 when the tab bar 50 is normally connected to the insertion groove body 172 Quot;) position.

Therefore, when the tab bar 50 is normally connected to the inside of the connection part 150, the protrusion part 74 is inserted into the insertion groove 174 and makes a sound. When the operator recognizes the sound, It is possible to judge whether or not a normal connection is established. Of course, it is also possible to discriminate whether the protruding portion 74 is normally connected to the feeling felt by the hand when the protruding portion 74 is inserted into the insertion groove 174, while the operator performs the connecting operation.

The shape of the projecting portion 74 and the corresponding insertion groove 174 may be variously sized and shaped so as not to interfere with the connecting operation of the tab bar 50, .

12, the tabs 50 are inserted through the electrical circuit connected to the switch 176 and the switch 176, which is pressed when the protrusion 74 is seated in the insertion groove 174, And an alarm unit 178 for notifying the user that the connection unit 150 is normally connected.

When the protrusion 74 is seated in the insertion groove 174, the switch 176 is pressed and the electric circuit is connected to operate the alarm unit 178. At this time, A method of recognizing whether or not the user is normally connected may be configured to audibly confirm a warning sound or to visually check a warning light.

FIG. 13 is a partially enlarged cross-sectional view showing a detailed configuration of a fixing and guide bracket of a branching device according to an embodiment of the present invention, FIG. 14 is a cross- And FIG. 15 is a partially enlarged perspective view illustrating an operation configuration in a state where the fixing body and the guide bracket of FIG. 14 are assembled.

1 to 15, a branch device for a booth duct according to the present invention is characterized in that the body 102 is fixed to the booth duct 1 after the body 102 is seated on the upper surface of the booth duct 1, And a guide bracket 130 which is rotatably provided on the guide bracket 130.

The fixing and guide bracket 130 may be rotatably installed in the second connection part 120. The fixing and guide bracket 130 may include an insertion tip 131 at one end thereof, The insertion tip 131 is seated in the fixing groove 15 of the bus duct 1 to fix the body 102 when the body 130 rotates about the rotation axis of the other end.

A moving body 142 and a fixing body 145 may be additionally provided to rotate the fixing and guide bracket 130 while rotatably supporting the second connecting portion 120.

Specifically, the moving body 142 has an insertion protrusion 143 that moves along a guide hole 133 formed in the fixing and guide bracket 130, and the fixing body 145 is fixed to the moving body 142 And a bolt 146. The movable body 142 supports the movable body 142 movably.

Accordingly, the moving body 142 moves up and down as the nut 147 (see FIG. 2) coupled to the bolt 146 rotates. As the moving body 142 moves up and down, 143 are guided along the guide holes 133 to rotate the fixing and guide brackets 130.

14A and 15A show a state where the nut 147 is positioned at the upper portion of the bolt 146 and the moving body 142 is at the upper portion, The nut 147 is positioned below the bolt 146 and the moving body 142 is located at the lower portion of the bolt 146. Therefore, Before the insertion tip 131 of the guide bracket 130 is seated in the fixing groove 15.

As a result, when the user tightens the nut 147 coupled to the bolt 146, the fixing and guide bracket 130 pivots to fix the body 102 to the bus duct 1, 102 is to be separated from the booth duct 1, the nut 147 may be loosened.

According to the branching device for a bus duct according to the present invention described above, it is possible to precisely perform the electrical connection of the branching device for the bus duct and easily check the connection failure, thereby preventing the occurrence of accidents such as fire, Can be placed in the correct connection position within a short time. Further, even in the case of a large-capacity bus duct, it is possible to easily carry out the connection operation without applying a large force.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. You can do it. It is therefore to be understood that the modified embodiments are included in the technical scope of the present invention if they basically include elements of the claims of the present invention.

1: Booth duct 10: Duct body
12: guide flange 14: insertion hole
30: Busbar 50: Tabbar
102: body 110: first connection part
112, 122: guide groove 114: guide pin
120: second connection part 130: fixing and guide bracket

Claims (18)

A body forming an outer shape;
A plurality of connection terminals provided inside the body, the connection terminals being connected to a cable;
A plurality of connection portions provided at one side of the body so that a tap bar electrically connected to the connection terminal and electrically connected to a bus bar in a bus duct is inserted; And
And an identification member for indicating whether or not the tab bar is normally inserted into the connection portion and electrically connected to the connection member. The method according to claim 1,
Wherein the identification member includes a marking portion that moves according to a depth at which the tab bar is inserted. 3. The method of claim 2,
Wherein the identification member comprises:
A contact portion that contacts the end of the tab bar and moves the cover portion as the tab bar is inserted;
Further comprising a resilient deforming portion that resiliently deforms when the tab bar is inserted to move the marking portion and provides a restoring force to move the marking portion in place when the tab bar is separated from the connecting portion. The method according to claim 1,
Wherein the identification member comprises:
A protrusion formed on any one of the tab bar and the connecting portion,
And an insertion groove formed in the other one of the tab bar or the connection portion to correspond to the protruding portion. 5. The method of claim 4,
Wherein the identification member comprises:
And an alarm unit for indicating that the tab bar is normally connected to the connection unit when the protrusion is seated in the insertion groove. The method according to claim 1,
Wherein one end of the tab bar is formed with a chamfer for insertion so that it can be smoothly inserted into the connection portion. The method according to claim 6,
And the other end of the tab bar is provided with a chamfer for welding base material for welding connection of the bus bar. The method according to claim 1,
Further comprising a contact preventing portion provided at an upper end of the tab bar to prevent a user's finger from contacting the finger. The method according to claim 1,
Further comprising a guide pin coupled to the lower surface of the body and an insertion hole formed in the upper surface of the bus duct to insert the guide pin. 10. The method of claim 9,
And the tab is connected to the connecting portion by tightening the nut with the guide pin inserted into the insertion hole. The method according to claim 1,
Further comprising: a guide groove that is seated on a guide flange formed on an upper surface of the booth duct. The method according to claim 1,
Further comprising: a fixing and guide bracket rotatably installed to fix the body to the booth duct after the body is seated on the upper surface of the booth duct. 13. The method of claim 12,
Wherein the fixing and guide brackets have an insertion tip at one end and the insertion tip is seated in a fixing groove provided in the bus duct to fix the body when the fixing and guide brackets are rotated, . 14. The method of claim 13,
A moving body having insertion protrusions that move along guide holes formed in the fixing and guide brackets;
And a fixing body connected to the moving body by bolts and movably supporting the moving body. 15. The method of claim 14,
Wherein the moving body is vertically moved as the nut coupled to the bolt rotates and the insertion protrusion is guided along the guide hole as the moving body moves up and down to rotate the fixing and guide bracket Branching device for booth ducts. A body forming an outer shape;
A plurality of connection terminals provided inside the body, the connection terminals being connected to a cable;
A plurality of connection portions provided at one side of the body so that a tap bar electrically connected to the connection terminal and electrically connected to a bus bar in a bus duct is inserted; And
And a guide pin coupled to the body and inserted into an insertion hole provided in the bus duct to fix the body in a fixed position. A body forming an outer shape;
A plurality of connection terminals provided inside the body, the connection terminals being connected to a cable;
A plurality of connection portions provided at one side of the body so that a tap bar electrically connected to the connection terminal and electrically connected to a bus bar in a bus duct is inserted; And
And a fixing and guide bracket rotatably installed to fix the body to the booth duct. A body forming an outer shape;
A plurality of connection terminals provided inside the body, the connection terminals being connected to a cable;
A plurality of connection portions provided at one side of the body so that a tap bar electrically connected to the connection terminal and electrically connected to a bus bar in a bus duct is inserted; And
And a guide groove that is seated on a guide flange formed on an upper surface of the booth duct.

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