JPH073550Y2 - Protective frame for switch - Google Patents
Protective frame for switchInfo
- Publication number
- JPH073550Y2 JPH073550Y2 JP1985100231U JP10023185U JPH073550Y2 JP H073550 Y2 JPH073550 Y2 JP H073550Y2 JP 1985100231 U JP1985100231 U JP 1985100231U JP 10023185 U JP10023185 U JP 10023185U JP H073550 Y2 JPH073550 Y2 JP H073550Y2
- Authority
- JP
- Japan
- Prior art keywords
- switch
- fixed
- switch body
- holding bars
- cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Description
【考案の詳細な説明】 考案の目的 （産業上の利用分野） 本考案は開閉器用保護枠に関するものである。DETAILED DESCRIPTION OF THE INVENTION Purpose of the Invention (Field of Industrial Use) The present invention relates to a protective frame for a switch.
（従来の技術） 従来、高圧配電線において電線の張り替え、配電機器の
取り替え等の工事を行う場合、工事区間の需要家への送
電停止を極力避けるためにバイパス開閉器を設置するこ
とが行われている。すなわち、高圧配電線に接続された
電源側及び負荷側のバイパスケーブルを電柱に仮設され
た開閉器に接続してバイパス回路を形成することにより
高圧配電線の所定区間を零電位状態とするものである。
仮設用開閉器にバイパスケーブルを接続する機構として
は作業者の感電防止及び開閉器に対して着脱作業の簡素
化を図るために例えば第５図に示すようにバイパスケー
ブル１に接続された接続用エルボ２が用いられ、同エル
ボ２が開閉器本体３のブッシング４に接続されるように
なっている。接続用エルボ２の接続端子2aは絶縁部材５
によりテーパ状に形成された嵌合内周面5aに取り巻かれ
ており、ブッシング４の絶縁部材６からなる嵌合外周面
6aが嵌合内周面5aに挿入嵌合されることにより接続端子
2aがブッシング４側のチューリップ端子12に嵌合接続さ
れる。このような嵌合状態では接続端子2aといった高電
圧体付近の耐電圧を高めるために嵌合内周面5aと嵌合外
周面6aとの面圧を高めてぴったりと嵌合させる必要があ
る。そのため、第５図に示すように一対のボルト７（図
面では１つのみ示す）を側面に突設したリング８をナッ
ト９によりブッシング４に締付固定するとともに、押さ
え部材10にボルト７を挿通し、ナット11を締めつけて押
さえ部材10により接続用エルボ２をブッシング２側に押
圧する構成が一般に採用されている。(Prior art) Conventionally, when performing work such as re-attachment of wires and replacement of distribution equipment in high-voltage distribution lines, it has been common practice to install bypass switches to avoid power transmission to customers in the construction section as much as possible. ing. That is, by connecting the power supply side and load side bypass cables connected to the high-voltage distribution line to a switch temporarily installed on a utility pole to form a bypass circuit, a predetermined section of the high-voltage distribution line is set to a zero potential state. is there.
As a mechanism for connecting the bypass cable to the temporary switch, for connection to the bypass cable 1 as shown in FIG. 5, for example, in order to prevent the electric shock of the operator and to simplify the attachment / detachment work to / from the switch. An elbow 2 is used, and the elbow 2 is connected to the bushing 4 of the switch body 3. The connecting terminal 2a of the connecting elbow 2 is an insulating member 5
The outer peripheral surface of the fitting which is surrounded by the inner peripheral surface 5a of the bushing 4 and which is formed of the insulating member 6 of the bushing 4
6a is inserted into and fitted to the inner peripheral surface 5a so that the connection terminal
2a is fitted and connected to the tulip terminal 12 on the bushing 4 side. In such a fitted state, it is necessary to increase the surface pressure between the fitting inner peripheral surface 5a and the fitting outer peripheral surface 6a in order to increase the withstand voltage in the vicinity of the high-voltage body such as the connection terminal 2a so that they are fitted closely. Therefore, as shown in FIG. 5, a ring 8 having a pair of bolts 7 (only one is shown in the drawing) protruding from the side surface is tightened and fixed to the bushing 4 by a nut 9, and the bolt 7 is inserted into the pressing member 10. However, a configuration is generally adopted in which the nut 11 is tightened and the connecting elbow 2 is pressed against the bushing 2 side by the pressing member 10.
（考案が解決しようとする問題点） しかしながら、このような構成においてもブッシング２
と直交する方向、すなわち第５図において上下方向に外
力が加われば嵌合内周面5aと外周面6aとの嵌合状態が正
規の状態からずれ易く、耐電圧が低下して閃絡するとい
う問題があった。(Problems to be solved by the invention) However, even in such a configuration, the bushing 2
If an external force is applied in a direction perpendicular to the direction, that is, in the vertical direction in FIG. 5, the fitting state of the fitting inner peripheral surface 5a and the outer peripheral surface 6a is likely to deviate from the normal state, and the withstand voltage decreases and flashover occurs. There was a problem.
考案の構成 （問題点を解決するための手段） そこで本考案では、全体を略四角枠形状とし、両側の垂
直枠のほぼ中間部には、一端が開閉器本体に対してボル
ト、ナット等にて取着される取付ブラケットを突設する
とともに、水平枠には前記開閉器本体より突設された三
相分のケーブル端末を支持する挟持部を設けた。Configuration of the Invention (Means for Solving Problems) Therefore, in the present invention, the whole is formed into a substantially rectangular frame shape, and one end is provided with a bolt, a nut, etc. with respect to the switch main body at an approximately middle portion of the vertical frames on both sides. The mounting bracket to be attached is provided in a protruding manner, and the horizontal frame is provided with a holding portion for supporting the cable ends for three phases protruding from the switch body.
（作用） すなわち、開閉器本体に取り付けた保護枠により電源側
及び負荷側のケーブル端末を支持固定することにより、
ケーブル端末は開閉器本体に対して固定された状態とな
る。これにより、ケーブルあるいは同ケーブルを開閉器
本体側に接続する接続部材等に対して外力が加わった場
合にも、この外力が開閉器本体側へ吸収されて接続部材
と開閉器のブッシングとの接続が正規の状態に維持され
る。従って、この接続部における耐電圧が低下するよう
なおそれはなく、閃絡発生が防止されるばかりか、開閉
器からのケーブルの導出方向（開閉器の上下方向）に応
じ、ケースに対し保護枠が容易に着脱できることから前
記狭着部を簡単に対応できるものである。(Operation) That is, by supporting and fixing the cable end on the power supply side and the load side by the protective frame attached to the switch body,
The cable end is fixed to the switch body. As a result, even when an external force is applied to the cable or the connecting member that connects the cable to the switch body side, this external force is absorbed by the switch body side and the connection member is connected to the switch bushing. Is maintained in a normal state. Therefore, there is no fear that the withstand voltage at this connection part will decrease, and not only will flashover be prevented, but a protective frame will be attached to the case depending on the direction in which the cable is pulled out from the switch (vertical direction of the switch). Since it can be easily attached and detached, the narrow fitting portion can be easily dealt with.
（実施例） 以下、本考案を具体化した一実施例を第１〜３図に基づ
いて説明する。(Embodiment) An embodiment embodying the present invention will be described below with reference to FIGS.
消弧性ガスを封入した開閉器本体21の両側面には三相配
電線接続用のブッシング22,22Aがそれぞれ３本ずつ装着
されており、電源側ケーブル23及び負荷側ケーブル23A
にそれぞれ接続された接続用エルボ24,24Aが各ブッシン
グ22,22Aに嵌合接続されるようになっている。ブッシン
グ22,22Aとケーブル端末となる接続用エルボ24,24Aとの
嵌合構造は従来周知のものであり、第３図に示すように
ブッシング22,22Aの導電体25に電気的に接続されたチュ
ーリップ端子25aを取り巻く絶縁部材26の嵌合外周面26a
は接続用エルボ24,24Aの接続端子27を取り巻く絶縁部材
28の嵌合内周面28aにぴったりと嵌合され、接続端子27
付近の耐電圧を高めるようになっている。ブッシング2
2,22Aにはナット29が螺着可能となっており、一側面に
一対のボルト30を突設したリング31がナット29によりブ
ッシング22,22Aの段差部に締付固定されている。接続用
エルボ24,24Aの基端後面には係合突部24aが一体形成さ
れており、各係合突部24aには押さえ部材32が割ピン33
により嵌合装着されている。そして、押さえ部材32の両
端部には前記ボルト30がそれぞれ挿通されており、押さ
え部材32がボルト30に螺着されたナット34の締付作用に
より接続用エルボ24,24Aをブッシング22,22A側に押圧付
勢するようになっている。Three bushings 22 and 22A for connecting a three-phase distribution line are installed on both sides of the switch body 21 in which the arc-extinguishing gas is enclosed, and the power supply side cable 23 and the load side cable 23A.
The connecting elbows 24 and 24A respectively connected to the bushings 22 and 22A are fitted and connected to the bushings 22 and 22A. The fitting structure between the bushings 22 and 22A and the connecting elbows 24 and 24A that serve as cable ends is well known in the art, and as shown in FIG. 3, the bushings 22 and 22A are electrically connected to the conductor 25 of the bushings 22 and 22A. Fitting outer peripheral surface 26a of the insulating member 26 surrounding the tulip terminal 25a
Is an insulating member surrounding the connection terminal 27 of the connecting elbow 24, 24A
The fitting inner peripheral surface 28a of the
It is designed to increase the withstand voltage in the vicinity. Bushing 2
A nut 29 can be screwed onto the 2, 22A, and a ring 31 having a pair of bolts 30 projecting from one side surface thereof is fixed to the stepped portion of the bushings 22, 22A by the nut 29. Engagement protrusions 24a are integrally formed on the rear surfaces of the base ends of the connecting elbows 24, 24A, and a pressing member 32 is provided with a split pin 33 on each engagement protrusion 24a.
Is fitted and mounted by. The bolts 30 are respectively inserted into both ends of the pressing member 32, and the connecting member elbows 24, 24A are connected to the bushings 22, 22A by the tightening action of the nut 34 screwed to the bolts 30 by the pressing member 32. It is designed to be biased by pressing.
開閉器本体21の前面及び後面には支持ブラケット35がそ
れぞれ一対立設固定されており、各支持ブラケット35に
は略Ｌ字状の取付ブラケット36,36Aが側方へ延出するよ
うに着脱可能に締付固定されている。開閉器本体21の一
側（電源側）の取付ブラケット36の先端間には略コ字状
に折曲形成された支持ロッド37がその両側の垂直枠部の
ほぼ中間部でもって垂下状態に固設されており、その底
部は開閉器本体21の脚を兼用している。同ロッド37の上
端間には３つの半円弧状の挾持部38aを開閉器本体21側
へ湾曲形成した固定挾持バー38が架設固定されている。
同様に、開閉器21の他側（負荷側）の取付ブラケット36
Aの先端間には略コ字状の支持ロッド37Aが垂下状態に固
設されており、開閉器本体21側へ湾曲した３つの半円弧
状の挾持部38aを有する固定挾持バー38Aが架設固定さ
れ、支持ロッド37,37A及び固定挟持バー38,38Aが略四角
枠形状の保護枠が形成している。固定挾持バー38,38Aの
表面は合成樹脂からなる被覆部材Ｍにてモールドされて
いる。なお、被覆部材Ｍとしてはゴムも可能である。Support brackets 35 are oppositely fixed to the front and rear surfaces of the switch body 21, respectively, and substantially L-shaped mounting brackets 36, 36A can be attached to and removed from each support bracket 35 so as to extend laterally. It is fastened and fixed to. Between the tip of the mounting bracket 36 on one side (power supply side) of the switch body 21, a support rod 37 bent in a substantially U-shape is fixed in a hanging state by the substantially middle portions of the vertical frame portions on both sides thereof. The bottom of the switch doubles as the leg of the switch body 21. Between the upper ends of the rods 37, a fixed holding bar 38 having three semi-circular holding portions 38a curved toward the switch body 21 is fixedly installed.
Similarly, the mounting bracket 36 on the other side (load side) of the switch 21
A substantially U-shaped support rod 37A is fixed between the tips of A in a suspended state, and a fixed holding bar 38A having three semi-arcuate holding portions 38a curved toward the switch body 21 is erected and fixed. The support rods 37, 37A and the fixed holding bars 38, 38A form a protection frame having a substantially rectangular frame shape. The surfaces of the fixed holding bars 38, 38A are molded with a covering member M made of synthetic resin. The covering member M may be rubber.
保護枠の水平枠となる各固定挟持バー38,38Aには同バー
38,38Aと同形状の可動挾持バー39,39Aがいずれも固定挾
持バー38,38Aに螺着された一対のボルト40,41により固
定挾持バー38,38Aと対向するように締付支持されてお
り、固定挾持バー38,38Aの挾持部38aと、可動挾持バー3
9,39Aの挾持部39aとの間には接続用エルボ24,24Aの上端
部が挾持されている。可動挾持バー39,39Aの表面は固定
挾持バー38,38Aと同様に被覆部材Ｍにてモールドされて
いる。可動挾持バー39,39Aの一方のボルト40側の端部に
は上方へ開放する切り欠き39b（第２図参照）が形成さ
れており、ボルト40と可動挾持バー39,39Aとの間には略
コ字状の規制片42が介在されている。すなわち、可動挾
持バー39,39Aがボルト40により固定挾持バー38,38Aに対
して締付けられた状態では規制片42の両折曲縁部が固定
挾持バー38,38Aの上下両縁部に係合し、可動挾持バー3
9,39Aのボルト40側の端部がずれないようになってい
る。そして、ボルト40,41の締付を緩めれば可動挾持バ
ー39,39Aのボルト40側の端部を固定挾持バー38,38Aに容
易に着脱可能であり、第２図に示すように可動挾持バー
29,29Aが固定挾持バー28,28Aに締付支持されていない状
態では可動挾持バー29,29Aが他方のボルト41により垂下
支持されるようになっている。The same bar is attached to each fixed holding bar 38, 38A that is the horizontal frame of the protection frame.
The movable holding bars 39, 39A having the same shape as the 38, 38A are both clamped and supported by the pair of bolts 40, 41 screwed to the fixed holding bars 38, 38A so as to face the fixed holding bars 38, 38A. Cage, the holding part 38a of the fixed holding bars 38, 38A, and the movable holding bar 3
Upper ends of the connecting elbows 24 and 24A are held between the holding portions 39a of the 9,39A. The surfaces of the movable holding bars 39, 39A are molded with the covering member M, like the fixed holding bars 38, 38A. A notch 39b (see FIG. 2) that opens upward is formed at one end of the movable holding bar 39, 39A on the side of the bolt 40, and between the bolt 40 and the movable holding bar 39, 39A. A substantially U-shaped restriction piece 42 is interposed. That is, when the movable holding bars 39, 39A are tightened with respect to the fixed holding bars 38, 38A by the bolts 40, both bent edges of the restricting piece 42 engage with the upper and lower edges of the fixed holding bars 38, 38A. And movable holding bar 3
The end of the 9,39A on the bolt 40 side does not shift. Then, by loosening the tightening of the bolts 40 and 41, the ends of the movable holding bars 39 and 39A on the bolt 40 side can be easily attached to and detached from the fixed holding bars 38 and 38A, and as shown in FIG. bar
In a state where the fixed holding bars 28, 28A are not clamped and supported by the fixed holding bars 28, 28A, the movable holding bars 29, 29A are hung and supported by the other bolt 41.
保護枠の両側の垂直枠となる支持ロッド37,37Aの前後面
上下方向端部には半円弧状の脚を兼用する取付ロッド4
3,43′,43Aが固着されており、両取付ロッド43,43Aには
ロープ44,44Aが結び付けられているとともに、両ロープ
44,44Aの先端には開閉可能なフック45,45Aが取付けられ
ている。Mounting rods 4 that also function as semi-circular legs at the top and bottom ends of the front and rear surfaces of support rods 37 and 37A that are vertical frames on both sides of the protective frame.
3,43 ', 43A are fixed, ropes 44,44A are tied to both mounting rods 43,43A, and both ropes
Openable and closable hooks 45, 45A are attached to the tips of the 44, 44A.
開閉器本体21の前面中央部には開閉レバー46が設けられ
ており、取付ブラケット36,36Aに止着された開放表示板
47及び閉成表示板48の矢印方向へ回動操作することによ
り開閉器本体21内に内蔵された開閉機構の開閉が行われ
るようになっている。開閉レバー46の両端部にはリング
49,50が取付けられており、フック45Aがリング49に掛止
められることにより開閉レバー46が第１図に示す閉成位
置に保持され、フック45がリング50に掛止められること
により開閉レバー46が開放位置に保持されるようなって
いる。An opening / closing lever 46 is provided at the center of the front surface of the switch body 21, and an open display plate fixed to the mounting brackets 36, 36A.
The opening / closing mechanism built in the switch body 21 is opened and closed by rotating the 47 and the closing display plate 48 in the direction of the arrow. Rings on both ends of the open / close lever 46
49, 50 are attached, and the hook 45A is hooked on the ring 49 to hold the opening / closing lever 46 in the closed position shown in FIG. 1, and the hook 45 is hooked on the ring 50 for opening / closing lever 46. Are held in the open position.
開閉器本体21の上面の前部及び後部には一対の吊下板51
が平行に立設固着されており、吊下板51の上端にはスタ
ンド部52a及びアーム部52bからなる略Ｌ字状の吊下ブラ
ケット52のアーム部52bが締付載置されている。すなわ
ち、各吊下板51には一対の吊下フック53が掛止められて
おり、それらの上部のねじ部53aがアーム部52b上に載置
された押さえ板54に挿通され、ねじ部53aに螺着された
ナット55により押さえ板54が締付けられてアーム部52b
が吊下板51上に押圧されるようになっている。押さえ板
54の一端部には前記可動挾持バー39,39Aの切り欠き39b
と同様の切り欠き（図示略）が形成されており、同切り
欠き部において押さえ板54とナット55との間には規制片
56が介在されている。なお、60は各吊下フック53のねじ
部53a上部に嵌着された保護カバーである。アーム部52b
の前面開口部には係止板57がアーム部52bの上面から上
方へ突出するように止着されており、同係止板57が前側
の押さえ板54の前端に係合することにより吊下ブラケッ
ト52の後方への移動が規制される。又、アーム部52bの
下面には図示しない係止片が止着されており、後側の吊
下板51の前面に係合することにより吊下ブラケット52の
前方への移動が規制される。A pair of suspension plates 51 are provided on the front and rear of the upper surface of the switch body 21.
Are vertically fixed in parallel with each other, and an arm portion 52b of a substantially L-shaped hanging bracket 52 including a stand portion 52a and an arm portion 52b is clamped and mounted on the upper end of the hanging plate 51. That is, a pair of suspension hooks 53 are hooked on each suspension plate 51, and the screw portion 53a at the upper portion thereof is inserted into the pressing plate 54 placed on the arm portion 52b, and the screw portion 53a is attached. The pressing plate 54 is tightened by the nut 55 screwed to the arm 52b.
Are to be pressed on the hanging plate 51. Holding plate
At one end of 54, the notch 39b of the movable holding bar 39, 39A.
A notch (not shown) similar to the above is formed, and a restriction piece is provided between the pressing plate 54 and the nut 55 at the notch.
56 are interposed. Incidentally, 60 is a protective cover fitted on the upper part of the threaded portion 53a of each hanging hook 53. Arm 52b
A locking plate 57 is fixed to the front opening portion of the arm portion 52b so as to project upward from the upper surface of the arm portion 52b, and the locking plate 57 is suspended by engaging the front end of the front pressing plate 54. Rearward movement of the bracket 52 is restricted. Further, a locking piece (not shown) is fixed to the lower surface of the arm portion 52b, and by engaging with the front surface of the rear suspension plate 51, the forward movement of the suspension bracket 52 is restricted.
吊下ブラケット52のスタンド部52bの上端部後面には掛
止片52cが止着されており、図示しない電柱にチェーン
等の索具により取り付けられる取付部材58の支持突片58
aに掛止片52cが引っ掛けられる。そして、取付部材58の
下端に支持されたクランプ59の掛止ピン59aがスタンド
部52a下端の図示しないフック部に掛止められ、開閉器
本体21が吊下ブラケット52及び取付部材58を介して電柱
に装着支持される。A hanging piece 52c is fixed to the rear surface of the upper end portion of the stand portion 52b of the hanging bracket 52, and a supporting projection 58 of a mounting member 58 attached to a utility pole (not shown) by a cord or the like.
The hook piece 52c is hooked on a. Then, the hooking pin 59a of the clamp 59 supported by the lower end of the mounting member 58 is hooked on the hook portion (not shown) at the lower end of the stand portion 52a, and the switch body 21 is hung through the hanging bracket 52 and the mounting member 58. Is mounted and supported on.
さて、このような構成の仮設用開閉器において電源側及
び負荷側のケーブル23,23Aを開閉器本体21に接続するに
は、第２図に示すようにボルト40,41を緩めて可動挾持
バー39,39Aをボルト41により垂下支持し、この状態でブ
ッシング22,22Aに接続用エルボ24,24Aを嵌合して押さえ
部材32により押圧支持しておく。この状態では接続用エ
ルボ24,24Aの上端部が固定挾持バー38,38Aの各挾持部38
aに接合しており、ボルト40,41を固定挾持バー38,38Aか
ら最大に引き出した状態で可動挾持バー39,39Aをボルト
41を中心に第２図において反時計回り方向に回動すれば
可動挾持バー39,39Aが固定挾持バー38,38Aに対向配設さ
れる。そして、固定挾持バー38,38Aの上下両端縁に規制
片42の折曲縁部を係合した状態でボルト40,41を締付け
れば接続用エルボ24,24Aの上端部が固定挾持バー38,38A
と可動挾持バー39,39Aとの間に挾持固定され、開閉器本
体21に対するケーブル23,23Aの接続が完了する。In order to connect the power supply side and load side cables 23, 23A to the switch main body 21 in the temporary switch having such a configuration, loosen the bolts 40, 41 as shown in FIG. 2 and move the movable holding bar. 39, 39A are hung and supported by bolts 41, and in this state, the connecting elbows 24, 24A are fitted to the bushings 22, 22A and pressed and supported by the pressing member 32. In this state, the upper ends of the connecting elbows 24 and 24A are fixed to the holding portions 38 of the fixed holding bars 38 and 38A.
It is joined to a and the movable holding bars 39, 39A are bolted with the bolts 40, 41 pulled out from the fixed holding bars 38, 38A to the maximum.
When it is rotated counterclockwise in FIG. 2 around 41, the movable holding bars 39, 39A are arranged to face the fixed holding bars 38, 38A. Then, when the bolts 40, 41 are tightened while the bent edges of the restriction pieces 42 are engaged with the upper and lower edges of the fixed holding bars 38, 38A, the upper ends of the connecting elbows 24, 24A are fixed holding bars 38, 38A. 38A
And the movable holding bars 39, 39A are sandwiched and fixed, and the connection of the cables 23, 23A to the switch body 21 is completed.
保護枠の水平枠となる固定挾持バー38,38A及び可動挾持
バー39,39Aによりケーブル23,23Aの端末を挾持する構成
によればケーブル23,23Aの端末部分が開閉器本体21に対
して確実に固定される。従って、例えばケーブル23,23A
を不用意に引っ張ってそれらの端末部に外力が加えられ
た場合にもその外力は、保護枠の水平枠となる固定挾持
バー38,38A及び保護枠の垂直枠となる支持ロッド37,37A
を介して開閉器本体21側へ吸収され、同外力が接続用エ
ルボ24,24Aとブッシング22,22Aとの接続部に作用するこ
とはなく、両者の接続は正常に維持される。すなわち、
ケーブル23,23Aの端末部に外力が作用しても接続用エル
ボ24側の嵌合内周面28aとブッシング22側の嵌合外周面2
6aとぴったりと接合維持され、この接合部において充分
な耐電圧が確保される。これにより同接合部における閃
絡発生は確実に防止される。According to the configuration in which the ends of the cables 23, 23A are held by the fixed holding bars 38, 38A and the movable holding bars 39, 39A, which are the horizontal frames of the protective frame, the end portions of the cables 23, 23A are securely attached to the switch body 21. Fixed to. So, for example, cables 23, 23A
Even if an external force is applied to those end portions by inadvertently pulling, the external force is applied to the fixed holding bar 38, 38A which is the horizontal frame of the protective frame and the support rod 37, 37A which is the vertical frame of the protective frame.
The external force is absorbed through the switch main body 21 side through the connection, and the external force does not act on the connecting portion between the connecting elbows 24 and 24A and the bushings 22 and 22A, and the connection between them is maintained normally. That is,
Even if external force is applied to the ends of the cables 23 and 23A, the fitting inner peripheral surface 28a on the connecting elbow 24 side and the fitting outer peripheral surface 2 on the bushing 22 side 2
The joint is maintained in close contact with 6a, and a sufficient withstand voltage is secured at this joint. This surely prevents the occurrence of flashover at the joint.
又、支持ロッド37,37Aの水平部は接続用エルボ24,24Aと
ブッシング22,22Aとの接続部付近を保護しており、開閉
器本体21を載置した場合にも前記接続部への外力作用は
確実に防止される。Further, the horizontal portion of the support rods 37, 37A protects the vicinity of the connecting portions between the connecting elbows 24, 24A and the bushings 22, 22A, and even when the switch body 21 is placed, external force to the connecting portions is applied. The action is reliably prevented.
本考案はもちろん前記実施例のみに限定されるものでは
なく、例えば支持ブラケット35に対してＬ字状ブラケッ
ト36が着脱可能となっているためバイパス工事における
ケーブル配線方法に応じ、自由に支持ロッドを反転させ
ることによりその配線方法に対応できる。又、前記実施
例と同様の固定挾持バー及び可動挾持バーを接続用エル
ボ24,24Aの水平部位置に配設して同水平部を挾持固定す
るようにしたり、可動挾持バーの挾持部を別体形成し、
これらの挾持部を独立して固定挾持バーの各挾持部に締
付接合することも可能である。又、固定挾持バーの両端
部を開閉器本体21に直接連結してケーブルの端末部を挾
持するようにしてもよい。さらには開閉器本体にケーブ
ルを接続するために前記実施例の接続用エルボ24,24Aを
電源側及び負荷側のいずれか一方において第４図に示す
ように逆転して配線してもよい。この際、取付ブラケッ
ト36,36Aの一方も逆転されることになる。又、前記実施
例の接続用エルボの代わりにストレート状の接続部材を
用いる場合、あるいは前記接続用エルボ及びストレート
状の接続部材の両者を用いる場合等においても本考案を
具体化することが可能であり、気中開閉器に本考案を具
体化することも可能である。Of course, the present invention is not limited to the above-mentioned embodiment. For example, since the L-shaped bracket 36 can be attached to and detached from the support bracket 35, a support rod can be freely installed according to a cable wiring method in bypass construction. The wiring method can be dealt with by reversing. Further, a fixed holding bar and a movable holding bar similar to those in the above-described embodiment are arranged at the horizontal portions of the connecting elbows 24, 24A so that the horizontal portions are held and fixed, or the holding portion of the movable holding bar is different. Body formation,
It is also possible to independently clamp and hold these holding parts to each holding part of the fixed holding bar. Alternatively, both ends of the fixed holding bar may be directly connected to the switch main body 21 to hold the end portion of the cable. Further, in order to connect the cable to the switch body, the connecting elbows 24 and 24A of the above-described embodiment may be reversed and wired on either the power source side or the load side as shown in FIG. At this time, one of the mounting brackets 36, 36A is also reversed. Further, the present invention can be embodied even when a straight connecting member is used instead of the connecting elbow of the above-described embodiment, or when both the connecting elbow and the straight connecting member are used. It is also possible to embody the present invention in an air switch.
考案の効果 以上詳述したように、本考案の開閉器用保護枠によれ
ば、ケーブルに外力が加えられた場合にもこの外力が開
閉器本体側へ吸収されることにより、ケーブルと開閉器
本体との接続が正常に維持され、この接続部における必
要な耐電圧が確保され得るという優れた効果を奏する。Effects of the Invention As described in detail above, according to the switch protection frame of the present invention, even when an external force is applied to the cable, the external force is absorbed by the switch main body side, so that the cable and the switch main body are absorbed. The effect that the connection with and is normally maintained and the necessary withstand voltage at this connection can be ensured is exhibited.
第１〜３図は本考案を具体化した一実施例を示し、第１
図は斜視図、第２図は一部省略側面図、第３図は要部正
面図、第４図は別例を示す略体斜視図、第５図は従来装
置を示す一部破断要部正面図である。 開閉器本体21、ブッシング22,22A、ケーブル23,23A、ケ
ーブル端末となる接続用エルボ24,24A、支持ブラケット
35、取付ブラケット36,36A、垂直枠となる支持ロッド3
7,37A、水平枠となる固定挟持バー38,38A、可動挟持バ
ー39,39A、挟持部38a,39a。1 to 3 show an embodiment embodying the present invention.
The drawing is a perspective view, FIG. 2 is a partially omitted side view, FIG. 3 is a front view of essential parts, FIG. 4 is a schematic perspective view showing another example, and FIG. It is a front view. Switch main body 21, bushings 22,22A, cables 23,23A, connecting elbows 24,24A that serve as cable ends, support brackets
35, mounting brackets 36, 36A, support rod 3 that serves as a vertical frame
7,37A, fixed holding bars 38,38A which are horizontal frames, movable holding bars 39,39A, holding portions 38a, 39a.
Claims (1)
（37,37A）のほぼ中間部には、一端が開閉器本体（21）
に対してボルト、ナット等にて取着される取付ブラケッ
ト（36,36A）を突設するとともに、水平枠（38,38A）に
は前記開閉器本体（21）より突設された三相分のケーブ
ル端末を支持する挟持部を設けたことを特徴とする開閉
器用保護枠。1. A switch body (21) having one end at substantially the middle portion of the vertical frames (37, 37A) on both sides.
Mounting brackets (36,36A) that are attached with bolts and nuts to the horizontal frame (38,38A), and three-phase components that project from the switch body (21) on the horizontal frame (38,38A). A protective frame for a switch, which is provided with a holding portion for supporting the cable end of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985100231U JPH073550Y2 (en) | 1985-07-01 | 1985-07-01 | Protective frame for switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985100231U JPH073550Y2 (en) | 1985-07-01 | 1985-07-01 | Protective frame for switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS629331U JPS629331U (en) | 1987-01-20 |
| JPH073550Y2 true JPH073550Y2 (en) | 1995-01-30 |
Family
ID=30969855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985100231U Expired - Lifetime JPH073550Y2 (en) | 1985-07-01 | 1985-07-01 | Protective frame for switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH073550Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6455281B2 (en) * | 2015-03-30 | 2019-01-23 | 中国電力株式会社 | Construction switch |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51130057U (en) * | 1975-04-10 | 1976-10-20 | ||
| JPS5219167U (en) * | 1975-07-30 | 1977-02-10 | ||
| JPS6118589Y2 (en) * | 1978-02-22 | 1986-06-05 | ||
| JPH025469Y2 (en) * | 1979-12-25 | 1990-02-09 |
-
1985
- 1985-07-01 JP JP1985100231U patent/JPH073550Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS629331U (en) | 1987-01-20 |
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