DESCRIPTION
Electric equipment
The present invention, for example, power distribution panel, etc., an invention relates to electrical apparatus called electrical equipment body unit is housed in a casing, in particular, when such electric and electronic devices, and electrical equipment are housed in a housing of the metal , has a potential housing to the ground, for that there is a possibility of electric shock to the human touch, these devices and equipment connected to the ground via the housing, and the potential of the potential and the earth the difference of a sufficiently small, the present invention relates to the arrangement of the ground bus that is connected to the earth for the purpose to prevent the electric shock.
Figure 7 (a) (b) is a plan view and a front view showing an example of a conventional switchboard, in plan view, back ground bus 1, the position and the rear side of the back from the front side of the casing 2 while disposed position, has a structure which is disposed in the bottom space 61 viewed from the front side. Arrangement of the ground bus 1 is considered to allow the ground line connecting work from the front side and rear side. The ground bus 1 is provided with a ground line mounting holes 3, by carrying out the connection of the ground line 71 of the electrical device body unit 81 to the ground line mounting holes 3, electrical equipment body unit 81 through the ground line 71 It is grounded on.
FIG 8 (a) (b) is a plan view and a front view showing another example of a conventional switchboard, in plan view, the ground bus 4, the position and the end surface side of the front-most side of the casing 5 while disposed position, has a structure which is disposed in the bottom space 62 viewed from the front side.Arrangement of the ground bus 4 is considered to allow the ground line connecting work from the front side and rear side. The ground bus 4 is provided with a ground line mounting holes 6, by carrying out the connection of the ground line 72 of the electrical device body unit 82 to the ground line mounting holes 6, electrical equipment body unit 82 through the ground line 72 It is grounded on.
See Patent Document 1 as a ground bus, and disposed at the position of the end surface side of the housing cases.
JP 2012-249370 JP
In the exemplary conventional switchboard in FIG. 7 (a) (b), in plan view, the ground bus 1, together with the rear position and the rear side from the front side of the casing 2 is arranged behind the position, front when viewed from the side and has a structure which is disposed in the bottom space 61, although the ground line connecting work from the front side and the rear side is considered to be able, for connecting the ground line 71 to the ground line attachment hole 3 Therefore, the required space for entering the human hands and mounting tool, must be secured to some extent the bottom space 61 in the vertical direction. For this reason, forced to no longer give to reduce the electrical equipment body unit housing space 40 in the vertical direction.

In the exemplary conventional switchboard in FIG. 8 (a) (b), in plan view, the ground bus 4, as well as placed at the position of the foreground side and the end side position of the housing 5, from the front side look have become arranged a structure in the bottom space 62, since the ground line mounting hole 6 is the top front and last side, a ground wire connection work even when the minimum bottom space 62 in the vertical direction can become, but the ground bus 4, when placed in the position of the front side and the last side position of the housing 5, that the ground bus 4, it becomes an obstacle to external cable connection work and foundation bolts connecting work from, forced to the ground bus 4 in the arrangement of FIG. 7, after all, the problem in FIG. 7, that is, the bottom space 62, unless extra and raised in the vertical direction in order to secure a space that allows the grounding wire connection work vanara Zu, as a result, the electrical equipment body unit housing space 45, is a problem that extra be forced to cut only in the vertical direction space fraction was raised in the vertical direction in order to secure a space that enables the ground line connection work occur.
The present invention has been made in view of the circumstances as described above, it is an object to be able to locate the ground bus without reducing the electrical equipment body unit accommodating space in the vertical direction.
Electrical equipment according to the invention, inside the housing, electrical equipment body unit accommodating space and the power cable receiving space is provided positioned at the right and left with each other in plan view, the electrical device body unit accommodating space in the electrical equipment body unit There is accommodated in the electrical equipment the electrical device power cable connected to the main unit is accommodated in the power cable receiving space, the ground bus for grounding the electric apparatus unit unit, said electric apparatus body unit accommodating space and with the power cable receiving space than located on the back left and right extending ground bus disposed in the interior of the housing extending to the left and right as viewed in a plan view, the electrical device body unit accommodating the power cable receiving space is composed of front and rear extending ground bus having a connected left and right extending ground bus ground line installation section while being arranged inside the extending around the casing located on the opposite side of the space it is those who are.
The electrical apparatus according to the invention, inside the housing, electrical equipment body unit accommodating space and the power cable receiving space located on the left and right with each other in plan view is provided two sets back and forth in a plan view, the electrical equipment body unit is accommodated in each of the electrical equipment body unit accommodating space, in an electrical equipment in which the power cable connected to the electric apparatus body unit is accommodated in each of the power cable receiving space, the electrical equipment body unit ground bus is, the front side of the in plan view electrical equipment body unit housing space and the power cable the electrical equipment body unit housing space of the storage space and after a plan to look at the side and the power cable receiving space for grounding each position to the left and right extending ground bus disposed in the interior of the housing extending to the left and right as viewed in a plan view, the front side of the electric apparatus body unit of the power cable receiving space of said front between the coupled receiving space and said lateral extension ground bus while being disposed inside the extending back and forth is located on the opposite side of the housing and the

first longitudinal extending ground bus having a grounding wire mounting portion , the right and left extending while being arranged inside the extension extends the housing back and forth positioned on the opposite side to the electric apparatus body unit accommodating space of the rear side of the power cable receiving space of the rear side are those composed of a second longitudinal extending ground bus that is connected to the ground bus has a ground wire mounting portion.
Electrical equipment according to the present invention, in the interior of the housing, electrical equipment body unit housing space and power cable housing space is provided to the position on the left and right with each other in plan view, electrical equipment body unit to the electrical equipment body unit housing space is accommodated in the electrical equipment the electrical device power cable connected to the main unit is accommodated in the power cable receiving space, the ground bus for grounding the electric apparatus unit unit, said electric apparatus body unit accommodating space and the power cable and the left and right extending ground bus disposed in the interior of the housing extending from the housing space to the left and right as viewed by in a plane located in the rear side, the electric apparatus body unit accommodating space of the power cable receiving space is composed of front and rear extending ground bus having a connected left and right extending ground bus ground line installation section while being arranged inside the casing extending in the longitudinal located on the opposite side of the because, also, in the interior of the housing, electrical equipment body unit housing space and power cable receiving space is located in the right and left each other in a plan view is provided two sets of back and forth in a plan view, the electrical equipment body unit housing space each electrical equipment body unit is accommodated in the, in the electric apparatus in which the power cable connected to the electric apparatus body unit is accommodated in each of the power cable receiving spaces, respectively, and the power cable receiving of the electrical device body unit located between the electric apparatus main body unit accommodating space and the power cable receiving space of the rear as viewed in the space in a plan view, disposed inside the housing and extends in the left-right as viewed in a plan view the left and right the extending ground bus, while being disposed inside the extending back and forth positioned in the said side opposite to the electric apparatus body unit accommodating space of the front of the power cable receiving space of said front said housing, first the extending ground bus before and after the electrical device body unit accommodating space opposite side of the rear side of the power cable receiving space of the rear side having the coupled right and left extending ground bus ground line mounting portion while being disposed inside the extending around the housing located, and a second longitudinal extending ground bus that is connected to the left and right extending ground bus has a ground wire mounting portion because, without reducing the electrical equipment body unit accommodating space in the vertical direction, without affecting the electrical equipment body unit the upper part of the receiving space or the lower or the upper and lower vertical space in the housing, the ground bus the can be arranged, yet there is an effect that can be easily be connected to the work of the ground wire to the ground bus.
A diagram showing the first embodiment of the present invention, the ground bus of the electrical equipment of the board type is placed in the rear of the top or the bottom of the housing, the ground bus in front of the right side of the power cable receiving space of the housing extended a diagram showing an example of a case in which the ground line mounting holes in the ground bus that extends

to the front side, viewed Y--Y-cross section in the direction of the arrow in FIG. 1 (a) FIG. 1 (b) cross plan view, and FIG. 1 (b) is a front view, FIG. 1 (c) is a vertical sectional side view of a Z--Z-section as viewed in an arrow direction in FIG. 1 (b). A diagram showing the first embodiment of the present invention, the ground bus of the electrical equipment of the board type is placed in the rear of the top or the bottom of the housing, the ground bus in front of the left side of the power cable receiving space of the housing extended a diagram showing an example of a case in which the ground line mounting holes in the ground bus that extends to the front side, FIG. 2 (a) viewed Y2-Y2 section in FIG. 2 (b) in an arrow direction transverse plan view, FIG. 2 (b) is a front view, FIG. 2 (c) is a vertical sectional side view taken in the arrow direction Z2-Z2 cross section in FIG. 2 (b). In view showing a second embodiment of the present invention, the ground bus of the electrical equipment of the board type is disposed to the rear of the uppermost or the lowermost of the housing, and along the upper or lower side of the frame of the enclosure, the enclosure the right to extend the ground bus on the front side of the power cable accommodating space, is a diagram illustrating an example of a case in which the ground line mounting holes in the ground bus that extends to the front side, FIG. 3 (a) FIG. 3 (b sectional plan view of the Y3-Y3 section viewed in the direction of the arrow in) and 3 (b) is a front view, longitudinal sectional side view of the Z3-Z3 section viewed in an arrow direction in FIG. 3 (c) FIG. 3 (b) it is. A view showing a second embodiment of the present invention, the ground bus of the electrical equipment of the board type is placed in the rear of the top or the bottom of the housing, the upper side of the frame when ground bus is the top placement, ground bus There along a lower side of the frames at the bottom arrangement, when extending the ground bus on the front side of the left power cable receiving space of the housing, provided with a ground wire mounting holes in the ground bus that extends to the front side is a diagram showing an example, FIG. 4 (a) is cross-sectional plan view of the Y4-Y4 cross section as viewed in an arrow direction in FIG. 4 (b), the FIG. 4 (b) a front view, FIG. 4 (c) 4 it is a vertical sectional side view taken in the arrow direction Z4-Z4 cross section in (b). A view showing a third embodiment of the present invention, along the ground bus of the electrical equipment of the board type is placed at the top or the bottom of the housing center, from the ground bus, which was placed in the center to the left and right frame of case inside surface Align housing is a diagram showing an example of a case where an extension of the ground bus in the longitudinal direction of FIG. 5 (a) is sectional plan view of the Y5-Y5 cross section in FIG. 5 (b) in an arrow direction, FIG. 5 ( b) is a front view, FIG. 5 (c) is a vertical sectional side view taken in the arrow direction Z5-Z5 cross section in FIG. 5 of 5 (b).A view showing a third embodiment of the present invention, the ground bus of the electrical equipment of the board type is placed at the top or the bottom of the housing center, the upper side of the frame in the case of the top arrangement, if the lowermost arrangement along a lower frame cross, a diagram showing an example of a case where an extension of the ground bus in the longitudinal direction of the housing, FIG. 6 (a) viewed Y6-Y6 cross section in FIG. 6 (b) in the direction of the arrow plan view, FIG. 6 (b) a front view, FIG. 6 (c) is a vertical sectional side view of the Z6-Z6 section viewed in an arrow direction in FIG. 6 (b). The ground bus of the conventional power distribution panel, a view showing an example of a case of arranging the bottom of the back of the front side of the rear and rear side of the board, the X--X-section in FIG. 7 (a) FIG. 7 (b) sectional plan view seen in the arrow direction, FIG. 7 (b) is a front view. The ground bus of the conventional power distribution panel, a view showing an example of a case of arranging the forefront side and the end face side of the panel bottom, and XX-XX cross section in the direction of the arrow in FIG. 8 (a) FIG. 8 (b) transverse plan view seen, FIG. 8 (b) is a front view.

The first embodiment.
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. Figure 1 is a ground bus of the electrical equipment of the board type disposed on either the electrical equipment body unit accommodating space rear uppermost or the lowermost within the housing, the ground in front of the right side of the power cable receiving space of the housing extending the generatrix is a diagram showing an example of a case in which the ground line mounting holes in the ground bus that extends to the front side, viewed Y--Y-cross section in the direction of the arrow in FIG. 1 (a) FIG. 1 (b) cross-sectional plan view and, FIG. 1 (b) a front view, FIG. 1 (c) is a vertical sectional side view of a Z--Z-section as viewed in an arrow direction in FIG. 1 (b). Figure 2, the ground bus of the electrical equipment of the board type in the enclosure is placed at the top or the bottom of the electrical equipment body unit housing space rear, to extend the ground bus in front of the left side of the power cable receiving space of the housing is a diagram showing an example of a case in which the ground line mounting holes in the ground bus that extends to the front side, sectional plan view of the Y2-Y2 section in the direction of the arrow in FIG. 2 (a) Fig. 2 (b) , 2 (b) is a front view, FIG. 2 (c) is a vertical sectional side view taken in the arrow direction Z2-Z2 cross section in FIG. 2 (b).
In the first embodiment, for example, closed switchboard, control panels, cubicles, electrical equipment such as switchgear, as illustrated in FIG. 1, in the casing 8, the electric devices located on the left and right with each other in plan view main unit accommodating space 10 and power cable receiving space 11 is provided, electrical equipment body unit 83 to the electrical device main unit accommodating space 10 (e.g., circuit breaker, units of devices such as magnetic switches) are accommodated, wherein power cable connected to the electric apparatus body unit 83 (e.g., power pull cable from the outside, the feeding cable to the load, etc.) in the electrical equipment is housed in the power cable receiving space 11, the electric apparatus main body unit 83 ground bus 7 for ground, located on the back side than the electrical equipment body unit housing space 10 and the power cable receiving space 11, ground bus 7, 7 of each electric equipment that has been column board, the left and right of Aitonaru electrical equipment extending ground bus 7LR, by connecting with a conductive connection plate 7J the 7LR, is connected. Right and left extending ground bus 7LR disposed inside the housing 8 extends to the left and right as viewed in a plan view, front and rear situated opposite the electric apparatus body unit accommodating space 10 of the power cable receiving space 11 It is composed of front and rear extending ground bus 7FR are connected to the left and right extending ground bus 7LR having the ground wire mounting portion 9 such as a grounding wire mounting hole while being arranged inside the extension extends the housing 8.
The front and rear extended ground bus 7FR lateral extending ground bus 7LR, as shown, as viewed from the front side, provided on the upper side or the lower side, yet are arranged at the same height as viewed from the front side .
Explaining with different viewpoints, to place the ground bus 7 to the rear of the housing 8, the ground bus 7 disposed in its rear portion, is a structure for the connection between the ground bus 7 of electrical equipment adjacent row Release configuration . And the ground bus 7 was placed in the rear of the electrical equipment body unit housing space 10 and the power cable receiving space 11,

the frame of the housing 8 (for example, internal reinforcing frame of the housing 8, electric equipment main unit mounting frame, exterior panel a mounting frame or the like, mounted inside the outer panel of the housing 8 along a by which) extends to the front of the power cable receiving space 11 provided in a position on the right side of the housing 8, the extension the ground bus 7 which is is provided with a ground wire mounting portion 9 such as a ground line mounting holes. By providing a ground wire mounting portion 9 on the power cable receiving space 11, the top space 53 (for example, the panel between the crossover cable, terminal block, space to accommodate the power retractable cable, etc.) or the bottom space 63 (for example, board during over cable, terminal block, in the space) to accommodate the power retractable cable, etc., without having an adverse effect, such as for raising the extra space for the ground line connection work, such as in the conventional, ground line attached to the ground bus 7 the ground line 73 via a section 9, a ground line connection operation for connecting the electric device main unit 83 incorporated in the housing 8, in the power cable receiving space 11 with additional space, be carried out easily possible. Therefore, the vertical height of the electric apparatus body unit accommodating space 10, eliminates the need to cut extra raising space component for conventional such ground line connection work, an electric device body unit 83 electrically possible to improve the mounting efficiency up space saving and economy of equipment units become.
Incidentally, the power cable ground wire 73 via a ground line attachment unit 9 to the ground bus 7, the ground line connection operation for connecting the electric device main unit 83 incorporated in the housing 8, the power cable accommodation space 11 before incorporating, after incorporating the power cable to the power cable accommodation space 11 may be performed in any.
Figure 2 is a example of the structure of the case of providing the power cable receiving space 16 located on the left side of the housing 13 in reverse. The ground bus 12 is disposed in either the uppermost or lowermost rear part of the housing 13, the ground bus 12 which is disposed in the rear portion, performs the connection between the ground bus of electrical equipment adjacent column panel configurations, and the ground bus 12 which is disposed to the rear of electrical equipment body unit accommodating space 15 and power cable receiving space 16, and along the frame of the housing 13, accommodating a power cable which is provided in the left of the housing 13 extended to the front side of the space 16, are ground wire mounting portion 14 such as a ground line mounting holes provided in the ground bus 12 which is the extended.By providing a ground wire mounting portion 14 to the power cable receiving space 16, without affecting the uppermost space 54 or the bottom space 64, in the power cable receiving space 11 with spare space, the ground line connection work it is possible to easily perform. By thus it was able to perform a ground wire connection work without affecting the uppermost space 54 or the bottom space 64, as compared with the conventional, ground wire connection work the uppermost space 54 or the bottom space 64 because the need to reduce the height of the electrical equipment body unit housing space 15 as a result of extra was raised in the vertical direction in order to secure a space that allows a no, implementation efficiency up space saving and economy of electric equipment body unit 84 it is possible to improve the resistance.
Each housing 8, 8 are mechanically connected to each other, right and left extending ground bus 7LR of the housings 8,8, 7LR is electrically from each other by a conductive connection plate 7J constituting the panel array, as shown is connected to the left and right extending ground bus 12LR of

the housings 13,13, 12LR also electrically connected to each other by a conductive connecting plate 12 J, the ground line 73 via a ground line attachment unit 9 to the ground bus 7, ground line connection operation for connecting the electric device main unit 83 incorporated in the housing 8 is performed for each housing 8,8, which is the same in the second and third embodiments described later.
The second embodiment.
Hereinafter, a second embodiment will be described with reference to FIGS. 3 arranges the ground bus of the electrical equipment of the board type to either the rear of the electric apparatus body unit accommodating space uppermost or the lowermost within the housing, the upper frames at the uppermost stage arrangement, the bottom for disposed along a lower side of the frame, to extend the ground bus on the front side of the right power cable receiving space of the housing, showing an example of a case in which the ground line mounting holes in the ground bus that extends to the front side is a view, FIG. 3 (a) is sectional plan view of the Y3-Y3 cross section in FIG. 3 (b) in the direction of the arrow, Fig. 3 (b) a front view, FIG. 3 (c) FIG. 3 (b) it is a vertical sectional side view of the Z3-Z3 section seen in the arrow direction in. 4, place a ground bus of the electrical equipment of the board type to either the rear of the electric apparatus body unit accommodating space uppermost or the lowermost within the housing, the upper frames at the uppermost stage arrangement, the bottom for disposed along a lower side of the frame, to extend the ground bus on the front side of the left power cable receiving space of the housing, showing an example of a case in which the ground line mounting holes in the ground bus that extends to the front side is a view, FIG. 3 (a) is sectional plan view of the Y4-Y4 cross section in FIG. 3 (b) in the direction of the arrow, Fig. 3 (b) a front view, FIG. 3 (c) FIG. 3 (b) it is a vertical sectional side view of the Z4-Z4 section seen in the arrow direction in.
In the second embodiment, for example, closed switchboard, control panels, cubicles, electrical equipment such as switchgear, as illustrated in FIG. 3, in the housing 18, the electric devices located on the left and right with each other in plan view main unit accommodating space 20 and the power cable receiving space 21 is provided, electrical equipment body unit accommodating space 20 to the electrical device body unit 85 (e.g., circuit breaker, units of devices such as magnetic switches) are accommodated, wherein power cable connected to the electric apparatus body unit 85 (e.g., power pull cable from the outside, the feeding cable to the load, etc.) in the electrical equipment is housed in the power cable receiving space 21, the electric apparatus main body unit 85 left and right extended to the ground bus 17 for grounding, which is located from electrical equipment body unit housing space 20 and the power cable receiving space 21 on the back side, which is disposed to extend in the left and right as viewed in a plan view in the interior of the casing 18 and standing ground bus 17LR, power and electrical equipment body unit housing space 20 of the cable receiving space 21 located on the opposite side of extending back and forth, left and right extending ground bus 17LR with is disposed in the interior of the casing 18 It is composed of front and rear extending ground bus 17FR is connected with a grounding wire mounting portion 19 such as a ground line mounting holes and.
The front and rear extending ground bus 17FR left and right extending ground bus 17LR, as shown in
the figure, are arranged at different heights as viewed from the front side.
Also, the front and rear extending ground bus 17FR lateral extending ground bus 17LR, as shown, as

viewed from the front side, is provided on either the upper or lower side, moreover, as shown, in the before and after extending ground bus 17FR and the left and right extending ground bus 17LR, the case of the upper placement, before and after the extending ground bus 17FR is, when viewed from the front side, located on the upper side than the upper side of the left and right extending ground bus 17LR, illustrated as described above, when the lower arrangement, the front and rear extending ground bus 17FR, as viewed from the front, are positioned on the lower side than the left and right extending ground bus 17LR lower.
To describe changing the viewpoint, the ground bus in the first embodiment extends to the front side of the left and right from the rear of the housing, although a structure in which a ground wire mounting holes in the extension location, housing in this embodiment to extend the ground bus either to one of the upper or lower side of the body, it is a structure to provide a ground wire attaching portion such as a ground line mounting holes.
As shown in FIG. 3, the ground bus 17 is disposed in the rear of the housing 18, it performs the connection between the ground bus of electrical equipment adjacent column panel consists of a ground bus bar 17 disposed in the rear part. Then the electric apparatus main body unit accommodating space 20 and ground bus 17 which is disposed in the rear of the power cable accommodating space 21, along a top or either of the frame at the bottom of the housing 18, located on the right side of the housing 18 extending to the front of the power cable receiving space 21 which is provided on, are ground wire mounting portion 19 such as a ground line mounting holes provided in the ground bus 17 which is the extended. By providing a ground wire mounting portion 19 to the power cable receiving space 21, without affecting the uppermost space 55 or the bottom space 65, the ground line connection work, in the power cable receiving space 21 with spare space , it becomes possible to easily perform, eliminates the need to reduce the height of the electric apparatus body unit accommodating space 20, electrical equipment body unit 85 mounting efficiency up space saving and can be improved economics to become.
4 is a case of a structure in the case in which a power cable receiving space 26 located on the left side of the housing 23 in reverse. Place the ground bus 22 at the rear of the housing 23, the ground bus 22 which is disposed in the rear portion, it performs the connection between the ground bus of electrical equipment adjacent column panel configurations. And the ground bus 22 which is disposed to the rear of electrical equipment body unit accommodating space 25 and power cable receiving space 26, along a top or either of the frame at the bottom of the housing 23, positioned on the left side of the housing 23 extending to the front of the power cable receiving space 26 provided on, it is provided with a ground wire mounting portion 24 such as a ground line mounting holes in the ground bus 22 which is the extended. By arranging the ground line mounting portion 24 to the power cable receiving space 26, without affecting the uppermost space 56 or the bottom space 66, in the power cable receiving space 26, which has a margin in space, ground wire connection since it is possible to perform operations easily, as compared with the conventional electrical equipment as a result of extra has been raised vertically to make room capable of performing ground wire connecting work for the uppermost space 56 or the bottom space 66 it is not necessary to reduce the height of the main body

unit accommodating space 25, it is possible to improve the electric apparatus body unit 86 mounting efficiency up space saving and economy.
Embodiment 3.
Hereinafter, a third embodiment of the present invention will be described with reference to FIGS. 5, housing and along a ground bus of the electrical equipment of the board type disposed on either the uppermost or lowermost central casing, from the ground bus disposed in the center in the left and right frames of the case inside surface in a diagram showing an example of a case where an extension of the ground bus in the longitudinal direction, FIG. 5 (a) is sectional plan view of the Y5-Y5 cross section in FIG. 5 (b) in an arrow direction, FIG. 5 (b) front view, FIG. 5 (c) is a vertical sectional side view taken in the arrow direction Z5-Z5 cross section in FIG. 5 (b). 6, the ground bus of the electrical equipment of the board type disposed on either the uppermost or lowermost central housing, in the case of the uppermost arrangement the upper side of the frame, when the lowermost place of the lower along a frame, a diagram showing an example of a case where an extension of the ground bus in the longitudinal direction of the housing, FIG. 6 (a) cross-sectional plan view taken in the arrow direction Y6-Y6 cross section in FIG. 6 (b) , 6 (b) is a front view, FIG. 6 (c) is a vertical sectional side view of the Z6-Z6 section viewed in an arrow direction in FIG. 6 (b).
In the second embodiment, for example, closed switchboard, control panels, cubicles, electrical equipment such as switchgear, as illustrated in FIG. 5, in the housing 28, the electric devices located on the left and right with each other in plan view body unit accommodating space 30 and power cable receiving space 31, two pairs provided in the front and rear as viewed in a plan view, each electrical equipment body unit of the electrical equipment body unit accommodating space 30 is accommodated, it is connected to the electric apparatus body unit in electrical apparatus is that the power cable is housed in each of the power cable receiving space 31, the ground bus 27 for grounding the respective electrical equipment body unit 87, the front side of the in plan view electrical equipment body unit accommodating space 30 and of the power cable receiving space 31 and the plane to look in the rear of the electrical equipment body unit housing space 30 and the power and position between the cable receiving space 31 extends to the left and right as viewed in a plan view the housing 28 right and left extending ground bus 27LR disposed therein, inside of the front power cable accommodating space 31 of the front side of the electrical equipment body unit accommodating space 30 extending in the longitudinal located on the opposite side of the casing 28 the first front and rear extending ground bus 27FR1, rear side of the electric apparatus body unit accommodating space after the power cable receiving space 31 having left and right extending ground bus 27LR is connected to the ground wire mounting portion 29 while being disposed second before and after extending ground bus that is connected with the left and right extending ground bus 27LR is disposed in the interior of the extension extends the housing 28 back and forth position on the opposite side of the 30 has a ground wire mounting portion 29 27FR2 If, in is configured.
Right and left extending ground bus 27LR and the first of the front and rear extending ground bus 27FR1 and the second before and after extending ground bus 27FR2, as shown in the figure, as viewed from the front side, are arranged at the same height. Right and left extending ground bus 27LR and the first of the front and rear extending ground bus

27FR1 and the second before and after extending ground bus 27FR2, as shown in the figure, as viewed from the front side, to either the top or the bottom It is provided.
To describe changing the viewpoint, in the present embodiment is a structure in the case where a ground bus 27 in the center of the enclosure 28. As shown in FIG. 5, the connection between the ground bus of electrical equipment adjacent column panel formed by ground bus 27 which is disposed at the center of the enclosure 28. And the ground bus 27 which is disposed at the center of the housing 28 along a said frame of the left and right of the housing 28 of the front or rear side of the casing 28, extended to the power cable receiving space 31. That the extended ground bus 27 is provided with a ground wire mounting portion 29 of such as a ground line mounting holes. By providing a ground wire mounting portion 29 to the power cable receiving space 31, without affecting the uppermost space 57 or the bottom space 67, the ground line connection work, in the power cable receiving space 31, which has a margin in space , it becomes possible to easily perform, as compared with the conventional electric apparatus unit as a result of extra has been raised vertically to make room capable of performing ground wire connection work uppermost space 57 or the bottom space 67 it is not necessary to reduce the height of the unit housing space 30, it is possible to improve the electric apparatus body unit 87 mounting efficiency up space saving and economy.
6 places the ground bus 32 in the center of the casing 33, a structure in the case of extending the ground bus 32 on the top and bottom of the housing 33. The ground bus 32 in the same manner as FIG. 5 arranged in either the uppermost or lowermost central housing 33, the ground bus of electrical equipment adjacent column panel consists of a ground bus 32 which is disposed at the center consolidated perform. And the ground bus 32 which is centrally disposed along a said frame of the upper or lower side of the housing 33 of the front or rear side of the casing 33, extended to the power cable receiving space 36. As the extended ground bus 32 is provided with a ground wire mounting portion 34. By arranging the ground line attachment portion 34 to the power cable receiving space 36, without affecting the uppermost space 58 or the bottom space 68, in the power cable receiving space 36 with spare space, ground wire attached since it is possible to perform operations easily, as compared with the conventional electrical equipment as a result of extra has been raised vertically to make room capable of performing ground wire connecting work for the uppermost space 58 or the bottom space 68 it is not necessary to reduce the height of the main body unit accommodating space 35, it is possible to improve the electric apparatus body unit 88 mounting efficiency up space saving and economy.

CLAIMS
1. Inside the housing, electrical equipment body unit housing space and power cable housing space is provided to the position on the left and right with each other in plan view, electrical equipment body unit is housed in the electrical equipment body unit housing space, the electrical equipment body in electrical apparatus is a power cable connected to the unit are accommodated in the power cable receiving space,
Ground bus for grounding the electric apparatus body unit is disposed inside of the electrical equipment body unit accommodating space and the power cable receiving space and the position on the back side extending in the left-right as viewed in plan view said housing right and left extending ground bus that is, the right and left extending while being disposed inside the extending around the casing located on the opposite side to the electric apparatus body unit accommodating space of the power cable receiving space electrical equipment characterized in that it is composed of front and rear extending ground bus is connected to a ground bus having a grounding wire mounting portion.
2. In electrical apparatus according to claim 1,
Electrical equipment wherein the front and rear and extending ground bus and the right and left extending ground bus, as viewed from the front side, characterized in that provided on at least one of the interior of the upper and lower side of the housing.
3. In the electric device according to claim 1 or claim 2, electricity said front and rear and extending ground bus and the right and left extending ground bus, characterized in that it is disposed at the same height as viewed from the front side machine.
4. In the electric device according to claim 1 or claim 2, electricity said longitudinal and extending ground bus and the right and left extending ground bus, characterized in that it is arranged at different heights as viewed from the front side machine.
5. In the electric device according to claim 2, of the pair of the front and rear extending ground bus and the right and left extending ground bus, the longitudinal extending ground bus of the upper side, as viewed from the front side, the upper side of the left and right extending electrical apparatus located above the ground bus, the longitudinal extending ground bus on the lower side, as viewed from the front side, characterized in that positioned on the lower side than the lateral extension ground bus of the lower.
6. In electrical apparatus according to any one of claims 1 to 5, Electrical equipment wherein the electrical equipment if an column panel configured to be positioned adjacent a plurality in the lateral in plan view, characterized in that said ground bus of each of said electrical device is connected to each other.
7. Inside the housing, electrical equipment body unit housing space and power cable receiving space is located in the right and left each other in a plan view is provided two sets of back

and forth in a plan view, electricity to each of the electrical equipment body unit housing
space the apparatus main body unit is housed, in an electrical device the electrical device
power cable connected to the main unit is accommodated in each of the power cable
receiving space,
Ground bus for grounding each of the electric apparatus unit unit,
When viewed in a plane located between the electrical equipment body unit housing space
and the power the electrical equipment body unit housing space of the cable receiving space
and after a plan to look at the side and the power cable receiving space of the front side as
viewed in a plan view right and left extending ground bus disposed in the interior of the
housing extends in the left-and-right,
And the right and left extending ground bus while being disposed inside the extending around
the housing located on said side opposite to the electric apparatus body unit accommodating
space of the front of the power cable receiving space of said front is connected to the first
longitudinal extending ground bus having a grounding wire mounting portion,
The left and right extending ground while being arranged inside the extension extends the
housing back and forth positioned on the opposite side to the electric apparatus body unit
accommodating space of the rear side of the power cable receiving space of the rear side a
second longitudinal extending ground bus with connected to the bus ground line attachment
portion,
Electrical equipment characterized in that it is configured in.
8. In electrical apparatus according to claim 7,
The left and right extending ground bus and said first longitudinal extension ground bus and said second longitudinal extension ground bus is, as viewed from the front side, provided on at least one of the interior of the upper and lower side of the housing electrical appliances, characterized by being.
9. In the electric device according to claim 7 or claim 8,
Electrical apparatus, characterized in that said left and right extending ground bus and said first longitudinal extension ground bus and said second longitudinal extension ground bus has been arranged at the same height as viewed from the front side .
10. In the electric device according to claim 7 or claim 8,
Wherein the first front and rear the extending ground bus and the right and left
extending ground bus is disposed at different heights as viewed from the front
side,
Electrical apparatus, characterized in that said second front and rear the extending
ground bus and the right and left extending ground bus are disposed at different
heights as viewed from the front side.
11. In the electric device according to claim 8,
A pair of the first before and after the extending ground bus and the second before and after extending ground bus of the right and left extending ground bus, the second before and after extending the ground and the upper side of the first of the front and rear extending ground bus bus and is, when viewed from the front side, situated above the said lateral extension ground bus of the upper, and a lower side

of the first longitudinal and extending ground bus and the second longitudinal extending ground bus, front when viewed from the side, electrical equipment, characterized in that positioned on the lower side than the lateral extension ground bus of the lower. 12. In electrical apparatus according to any one of claims 11 claims 7,
Electrical equipment wherein the electrical equipment if an column panel configured to be positioned adjacent a plurality in the lateral in plan view, characterized in that said ground bus of each of said electrical device is connected to each other.