JPH11299017A - Outer covering construction of high voltage street installation type switchgear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To replace an entire member of which an outer box is composed or any members partially at site in a hot-line state, when the outer box is heavily damaged by wounds, deformations, rust, etc. SOLUTION: The upper parts of pillar frames, which are to be basic frames are attached to both the side surfaces of a switchgear main part 1, in which a plurality of switches are provided. The lower ends of the lower parts of the pillar frames are attached to a channel base 3. Thus, the pillar frames by which the swtichger main part 1 is supported stand erect on the channel base 3. Cable cleats 5, by which cables 4 drawn into/from the switchgear main part 1, are fixed are attached to the pillar frames. A rear plate, side plates 7, a front door and a ceiling plate 10 are fixed to each other, to the pillar frames, to the channel base 3, etc., to build an approximately box-shaped switchgear.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground cable or the like which is set up on a road or the like, introduced into a switch at that location, branched to another circuit via a bus, and led out under the ground again. The present invention relates to an exterior structure of a switch mounted on a high-pressure road.

[0002]

2. Description of the Related Art In the conventional method of replacing the outer case of a high-pressure road-mounted switch, the main body of the switch is made independent on a channel base, and an outer case in which an outer plate and a frame are integrated is covered from above. Therefore, the outer box integrating the outer plate and the frame was replaced.

[0003]

Therefore, when the outer box is replaced, the outer box becomes heavy and must be lifted by mechanical force, and cannot be replaced while the high-voltage line is in a live state, resulting in a power failure. . Also, if the outer plate is damaged from outside, etc.,
Although the frame was not damaged, the entire outer box in which the outer plate and the frame were integrated was replaced, which was uneconomical.

The present invention has been made in view of these points, and when the outer box is significantly damaged by scratches, deformation, rust, or the like, the entire outer box or a part of the outer box is hot-lined on site. The present invention solves the above-mentioned problem by providing an exterior structure of a high-voltage road-mounted switchgear capable of replacing only an outer plate.

[0005]

According to a first aspect of the present invention, a switch frame having a plurality of switches is provided with upper portions of column frames serving as basic aggregates attached to both side surfaces of the switch body, and lower and lower ends of the column frames. Is mounted on the channel base, and a support frame supporting the switch body is erected on the channel base, and a cable cleat for fixing a cable to be introduced or led out to the switch body is mounted on the support frame, and the switch is mounted on the support frame. The back plate, the side plate, the door and the ceiling plate were fixed to each other, the support frame and the channel base so as to cover the main body, and were assembled in a substantially box shape.
It has an exterior structure of a switch mounted on a high-pressure road.

According to a second aspect of the present invention, in the exterior structure of the high-pressure road switchgear according to the first aspect, the back plate, the side plate, and the door are fixed to each other by a pipe provided on one side. A pin provided on the other side is inserted so that the bolt is not exposed to the outside.

According to a third aspect of the present invention, there is provided an exterior structure of a switch mounted on a high pressure road according to the first or second aspect,
Screw holes for attaching suspension bolts of a box-type high-voltage road switchgear are provided on the upper surface of the support frame.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. First, a switch mounted on a high-pressure road according to the present invention will be described with reference to FIGS. 1 and 2. The side frames 2, 2 are provided on both sides of a switch body 1 having many switches.
Are fixed, and lower lower ends of these side frames 2, 2 are fixed to the channel base 3. A large number of cables 4 penetrating the channel base 3 rise, are supported by cable cleats 5 on the way, and are connected to the branch terminals 6 of the switches of the switch body 1. This cable cleat 5 is also supported by the two side frames 2. Outside the side frames 2, side plates 7 on both sides are attached, and a rear plate 8 is attached at the rear end of each side frame 2, and a front door 9,
9 (only one front plate 9 is shown), and a ceiling plate 10 is mounted on these immediate plates, and these channel base 3, side plate 7, rear plate 8, front door 9,
9 and the ceiling plate 10 form a box shape.

Next, a procedure for assembling the switch mounted on a high-pressure road will be described with reference to FIGS. The side frames 2 and 2 are attached to both side surfaces of the switch body 1. This is done by placing the upper parts of the left and right side frames 2 on the switch body 1 as shown in FIG.
As shown in the figure, bolts 11 are screwed and fixed at four places on each surface. Both ends of the cable cleat 5 are fixed to the left and right side frames 2 with bolts 12. Next, as shown in FIG. 4, the side frames 2, 2 to which the switch body 1 is attached are attached to the channel base 3. For this purpose, as shown in FIG. 4 (B), bolts 13 are passed through three bolt holes provided at the bent edge 2a at the lower end of each side frame 2 and fixed to the channel base 3. As shown in FIG. 4B, the channel base 3 is provided with a bottom plate 3a having a cable insertion hole, and the channel base 3 is provided with a ventilation hole 3b on a side surface thereof.

Thereafter, as shown in FIG. 5, two pins 14, 14 protruding from the lower end of the rear plate 8 are inserted into the channel base 3, and both tongues 8c of the rear plate 8 are attached to the rear of the side frames 2. These are screwed and fixed with a plurality of bolts 15 against the end face. Further, as shown in FIG. 6, the pins 16 of the left and right side plates 7 (four locations on each side) are connected to the pipes 17 of the side frames 2 and the pipes 18 of the back plate 8.
(See FIG. 28), and the front side of each side plate 7 is fixed to each side frame 2 with bolts 19 (each side plate 7 is
Places).

Next, as shown in FIGS. 7 and 28, the upper and lower guide pipes 21a of the left and right front doors 9 are engaged with the hinge pipes 20 protruding from the upper and lower portions of the front edge of each side plate 7, respectively.
Each hinge pin 21 is inserted into these, whereby each front door 9 is rotatably supported by each side plate 7. Each of these front doors 9 can be opened or closed. Then, as shown in FIG. 8, the pins 22 projecting from the inner rear surface of the ceiling plate 10 are inserted into the respective pin holes 24 of the two plate pieces 23 projecting from the upper end of the rear plate 8 with a space therebetween.
The through-holes 25 at the four corners of 0 are mounted on the suspension bolt bases 26 provided on the front and rear sides of the upper end face of each side frame 2, and decorative bolts 27 are screwed into the bolt holes of the suspension bolt bases 26 from above. This completes the assembly of the outer box.

The detailed structure of each of the side frames 2 is, as shown in FIGS. 9 to 13, composed of a vertically long quadrilateral frame, with a right-angled bent edge inside the four sides.
The bent edge 2a at the lower end is provided with a bolt hole 28 through which the bolt 13 passes. A tongue piece 2c having a key-shaped cross section is provided on the bent edge 2b at the front end (right side in FIG. 9). The pipes 17, 17 are placed on the upper and lower portions of the tongue piece 2c.
Are provided vertically, and are provided with bolt holes 29 through which the bolts 12 pass. Further, the suspension bolt stand 26 protrudes from the upper surface of the bent edge 2d at the upper end. Further, several screw holes 30 for screwing the bolts 15 are provided in the bent edge 2e at the rear end. At the top of the side frame 2, horizontal members 31 are provided in two stages, and the horizontal members 31 are provided with two bottom holes 32 through which the bolts 11 pass. The left and right side frames 2 have a symmetric structure.

As shown in FIGS. 14 to 16, the detailed structure of the back plate 8 is such that a quadrangular plate body has right-angled bent edges inside four sides thereof, and bent edges 8a on both sides thereof. , 8b are provided with tongue pieces 8c each having a key-shaped cross section, and pipes 18 are provided vertically on the upper and lower portions, respectively. Each of the tongue pieces 8c has the bolt 15
There is a bolt hole 33 for passing through. The bolt 13 is engaged with the lower bent edge 8d, and the respective plate pieces 23 are provided on the upper surface of the upper bent edge 8e. Vent holes 34 are provided above and below the back plate 8.
As shown in FIG. 28, a stainless steel wire net 40 is provided inside each of the ventilation holes 34 to prevent mischief.

As shown in FIGS. 17 to 19, the detailed structure of each side plate 7 is such that a quadrangular plate body has right-angled bent edges inside the upper left and right sides thereof. The pin 16 hangs on the upper and lower inner sides of the bent edges 7a and 7b on both sides with the base part up and the tip down. A tongue piece 7c having a key cross section is provided on the front bent edge 7a, and hinge pipes 20 are provided above and below the tongue piece 7c. Note that the left and right side plates 7 have a symmetric structure.

As shown in FIGS. 20 to 24, each of the front doors 9 has a quadrangular plate with a right-angled bent edge inside the four sides thereof. The hinge pins 21 are provided on the upper and lower sides. These hinge pins 21 are provided with guide pipes 21a vertically separated from each other, and hinge pins 21 are attached to these upper and lower guide pipes 21a.
Is detachably inserted, the hinge pin 21 is locked to the upper guide pipe 21a by a stopper at the upper end. Therefore, the hinge pipe 20 of each side plate 7
Is inserted between the upper and lower guide pipes 21a, and the hinge pins 21 are passed through the upper and lower guide pipes 21a and the hinge pipes 20, so that each front door 9 is rotatably supported at each of the upper and lower two places on each side plate 7. Is done. Locking hardware 3 is provided above and below the inside of the front door 9 opposite to the hinge pins 21.
5, 35 and explosion-proof lock holes 36, 36 are provided, respectively. Further, stay fitting members 37, 37 are provided on the lower bent edge 9a.
Notches 38, 38 are formed in the bent edge 9b on the side having the notch at positions corresponding to the hinge pins 21 to avoid the support of the hinge pipe 20.

As shown in FIGS. 25 to 27, the ceiling plate 10 has a quadrangular plate body having a slightly mountain-shaped central cross section with a right-angled bent edge inside the four sides. The above-mentioned two pins 22 are protruded inside the center of the bent edge 10a at the rear end. The through holes 25 are provided at four corners. FIG. 28 is a cross-sectional view in an assembled state. In the figure, reference numeral 39 denotes a suspension bolt screwed into a bolt hole of the suspension bolt stand 26 at the upper end of each side frame 2 instead of the decorative bolt 27.

In the above embodiment, since the ventilation holes 34 are provided above and below the back plate 8, it is possible to prevent dew condensation and to quickly release pressure from the back surface when an internal short circuit occurs. Therefore, even in the event of an internal short-circuit accident of the switch, there is no opening of the door and no significant deformation of the outer plate, and it is possible to suppress arc blowing to the front side (the sidewalk side) as much as possible.

In the above-described embodiment, the side frame is used. However, any suitable frame may be used as long as it supports the switch body and also supports the members forming the outer box. In the above embodiment, the left and right side plates, the rear plate, the front door, and the like are all joined by pins and pipes into which the pins are inserted, but they may be joined by other means. Further, in the above embodiment, except for the decorative bolts for fixing the ceiling plate to the side frame, the bolts are not exposed to the outside of the outer box, but other bolts may be exposed.
In the above embodiment, the suspension bolt is screwed to the suspension bolt table at the upper end of the support frame. However, the configuration in which the suspension bolt is supported by the support frame is not necessarily required.

[0019]

According to the first aspect of the present invention, the switch body is supported by two support frames, and the support frame supports the left and right side plates, the rear plate, the front door, and the ceiling plate constituting the outer box. Because of this assembly, some or all of these members can be easily removed and replaced with new ones. In addition, at this time, any members constituting these outer boxes can be replaced while the switch body remains in a live state. In addition, the switch itself can be easily assembled manually without requiring a large-scale machine. In addition, since the members constituting the outer box are assembled as described above, manufacturing and surface treatment can be performed for each of these members, so that the manufacturing cost is low.

According to the second aspect of the present invention, in addition to the effect of the first aspect, only the decorative bolts are exposed on the ceiling plate and the other bolts are not exposed on the outer periphery of the outer case. It is safe for pedestrians to touch. Moreover, since the left and right side plates, the rear plate, the front door, and the like are all joined by pins and pipes into which the pins are inserted, assembly of these members can be performed extremely easily and quickly.

According to a third aspect of the present invention, in addition to the effects of the first or second aspect of the present invention, a support frame is provided in such a prefabricated outer box, and a suspension bolt is attached to the support frame. Since the switch can be mounted, a load is applied to the support frame when the switch is lifted, and the switch has sufficient strength to withstand lifting.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a side longitudinal sectional view showing an embodiment of the present invention.

FIG. 3 shows a first example of assembly in the embodiment of the present invention.
It is explanatory drawing which shows a process, (A) figure is a front view and (B) figure is a side view.

FIG. 4 shows a second example of assembly in the embodiment of the present invention.
It is explanatory drawing which shows a process, (A) figure is a front view and (B) figure is sectional drawing of the AA 'line.

FIG. 5 is a third view of the assembly in the embodiment of the present invention;
It is explanatory drawing which shows a process, (A) figure is a rear view and (B) figure is a side view.

FIG. 6 is a fourth view of the assembly in the embodiment of the present invention;
It is explanatory drawing which shows a process, (A) figure is a front view and (B) figure is a side view.

FIG. 7 is a fifth view of the assembly in the embodiment of the present invention;
It is explanatory drawing which shows a process, (A) figure is a front view and (B) figure is a side view.

FIG. 8 is a sixth assembly example according to the embodiment of the present invention;
It is explanatory drawing which shows a process, (A) figure is a front view and (B) figure is a side view.

FIG. 9 is a front view of a side frame used in the embodiment of the present invention.

FIG. 10 is a plan view of a side frame used in the embodiment of the present invention.

FIG. 11 is a bottom view of the side frame used in the embodiment of the present invention.

FIG. 12 is a left side view of a side frame used in the embodiment of the present invention.

FIG. 13 is a right side view of a side frame used in the embodiment of the present invention.

FIG. 14 is a front view of a back plate used in the embodiment of the present invention.

FIG. 15 is a plan view of a back plate used in the embodiment of the present invention.

FIG. 16 is a left side view of a back plate used in the embodiment of the present invention.

FIG. 17 is an inside front view of a side plate used in the embodiment of the present invention.

FIG. 18 is an inside plan view of a side plate used in the embodiment of the present invention.

FIG. 19 is an inner left side view of the side plate used in the embodiment of the present invention.

FIG. 20 is an inside front view of the front door used in the embodiment of the present invention.

FIG. 21 is an inside plan view of a front door used in the embodiment of the present invention.

FIG. 22 is an inside bottom view of the front door used in the embodiment of the present invention.

FIG. 23 is an inside left side view of the front door used in the embodiment of the present invention.

FIG. 24 is an inner right side view of the front door used in the embodiment of the present invention.

FIG. 25 is a front view of a ceiling plate used in the embodiment of the present invention.

FIG. 26 is a side view of a ceiling plate used in the embodiment of the present invention.

FIG. 27 is a bottom view of a ceiling plate used in the embodiment of the present invention.

FIG. 28 is a longitudinal sectional view after the assembly is completed in the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Switch body 2 Side frame 3 Channel base 4 Cable 5 Cable cleat 7 Side plate 8 Back plate 9 Front door 10 Ceiling plate 16 Pin 17 Pipe 18 Pipe 20 Hinge pipe 21 Hinge pin 22 Pin 25 Hole 26 Hanging bolt stand 27 Decorative bolt

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hirokazu Ishida 1 Higashi-Shinmachi, Higashi-ku, Nagoya City, Aichi Prefecture Inside (72) Inventor Yasuhiro Ohashi 1 Higashi-Shinmachi, Higashi-ku, Nagoya City, Aichi Prefecture Chubu Electric Power Co., Ltd. (72) Inventor Yoshii Ozasa 1 Higashi-shinmachi, Higashi-ku, Nagoya City, Aichi Prefecture Inside Chubu Electric Power Co., Inc. (72) Inventor Kazumichi Mitomi 5-2-1 Ebara, Shinagawa-ku, Tokyo Saneisha Co., Ltd. Inside the factory (72) Inventor Hiroyuki Izumi 5-2-1 Ebara, Shinagawa-ku, Tokyo Co., Ltd. Inside Saneisha Works (72) Inventor Kazuyuki 5-2-1 Ebara, Shinagawa-ku, Tokyo Co., Ltd. Inside Saneisha Factory

Claims (3)

[Claims] 1. A switch frame having a plurality of switches mounted on both sides of a switch frame, upper portions of support frames serving as basic aggregates are mounted, and lower ends of the lower portions of these support frames are mounted on a channel base. The support frames supporting the main body are erected, and cable cleats for fixing the cables to be introduced or led out to the switch main body are attached to these support frames, and the rear plate and the side plates are covered so as to cover the switch main body. And a door and a ceiling plate fixed to each other, the support frame and the channel base, and assembled into a substantially box shape. 2. The rear plate, the side plate, and the door are fixed to each other by inserting a pin provided on one side into a pipe provided on the other side so that bolts are not exposed to the outside. The exterior structure of the switch mounted on a high-pressure road according to claim 1. 3. The high-pressure road installation type according to claim 1, wherein a screw hole for attaching a suspension bolt of a box-type high-voltage road installation switch is provided on an upper surface of the support frame. Exterior structure of switchgear.