JPH06176630A - Cable for high-voltage electronic equipment - Google Patents
Cable for high-voltage electronic equipmentInfo
- Publication number
- JPH06176630A JPH06176630A JP32576392A JP32576392A JPH06176630A JP H06176630 A JPH06176630 A JP H06176630A JP 32576392 A JP32576392 A JP 32576392A JP 32576392 A JP32576392 A JP 32576392A JP H06176630 A JPH06176630 A JP H06176630A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- cable
- semiconductive layer
- coating
- electronic equipment
- 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.)
- Pending
Links
- 239000012212 insulator Substances 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 abstract description 6
- 238000000576 coating method Methods 0.000 abstract description 6
- 238000001125 extrusion Methods 0.000 abstract description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 5
- 229920000181 Ethylene propylene rubber Polymers 0.000 abstract description 3
- 229920000915 polyvinyl chloride Polymers 0.000 abstract description 2
- 239000004800 polyvinyl chloride Substances 0.000 abstract description 2
- 238000007765 extrusion coating Methods 0.000 abstract 2
- 239000004065 semiconductor Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 22
- 239000004020 conductor Substances 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920006122 polyamide resin Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010073 coating (rubber) Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】 本発明は、高電圧電子機器用ケ
ーブルに関し、特に中心に補強索を備える高電圧電子機
器用ケーブルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable for a high-voltage electronic device, and more particularly to a cable for a high-voltage electronic device having a reinforcing cord at its center.
【０００２】[0002]
【従来の技術】一般に、高電圧電子機器用ケーブルとし
ては、図２に示されるように、低圧絶縁線心１の２条
と、第３線心２の２条とをより合わせ、このより合わせ
体３上に、順次、半導電層４、高圧絶縁体５、外部遮蔽
層６及びシース７を形成して成るものが知られている。
ここで、低圧絶縁線心１は、導体１ａ上にゴム絶縁層１
ｂを押出被覆したもので構成され、また、第３線心２
は、多数本の導線をより合わせたもので構成されてい
る。2. Description of the Related Art Generally, as a cable for high-voltage electronic equipment, as shown in FIG. 2, two lines of a low-voltage insulating wire core 1 and two lines of a third wire core 2 are twisted together and twisted together. It is known that a semiconductive layer 4, a high-voltage insulator 5, an outer shielding layer 6 and a sheath 7 are sequentially formed on the body 3.
Here, the low voltage insulated wire core 1 includes a rubber insulating layer 1 on the conductor 1a.
b is extrusion coated, and the third wire core 2
Consists of a number of twisted wires.
【０００３】[0003]
【発明が解決しようとする課題】ところで、かかる構成
の高電圧電子機器用ケーブルにおいては、半導電層４の
被覆後の外径は小径とされている（3.6 ｍｍ程度）。こ
れは、レントゲン機器の特性上、低圧絶縁線心１に流れ
る電流が小さいため、細い導体サイズで十分だからであ
る。By the way, in the cable for high-voltage electronic equipment having such a structure, the outer diameter after the coating of the semiconductive layer 4 is made small (about 3.6 mm). This is because, due to the characteristics of the X-ray equipment, the current flowing through the low-voltage insulated wire core 1 is small, so a thin conductor size is sufficient.
【０００４】一方、近時においては、電子顕微鏡等の画
像解析度を向上させる観点から、回路電圧が２００ｋＶ
を越える大出力の工業用レントゲン機器が出現してお
り、かかる大出力の工業用レントゲン機器のリード線と
して、従来から、医療用のレントゲン機器に使用されて
いるレントゲン用ケーブル、すなわち、図２に示される
ような高電圧電子機器用ケーブルを使用した場合におい
ては、半導電層４の被覆後の外径が小径のため、高圧絶
縁体５の半導電層４側の電位傾度が大きくなり、ひいて
は高圧絶縁体５が絶縁破壊してしまうという難点があっ
た。On the other hand, recently, from the viewpoint of improving the image analysis degree of an electron microscope or the like, the circuit voltage is 200 kV.
A large-output industrial X-ray device has emerged, and as a lead wire for such a large-output industrial X-ray device, the X-ray cable conventionally used in medical X-ray devices, that is, in FIG. When the cable for high voltage electronic equipment as shown is used, the outer diameter of the semiconductive layer 4 after coating is small, so that the potential gradient on the semiconductive layer 4 side of the high-voltage insulator 5 becomes large, and as a result, There is a drawback that the high-voltage insulator 5 causes dielectric breakdown.
【０００５】このため、従来の高電圧電子機器用ケーブ
ルは、回路電圧が２００ｋＶを越える大出力の工業用レ
ントゲン機器のリード線としては使用できないという難
点があった。Therefore, the conventional cable for high-voltage electronic equipment has a drawback that it cannot be used as a lead wire for a high-power industrial X-ray equipment having a circuit voltage exceeding 200 kV.
【０００６】そこで、本発明は、回路電圧が２００ｋＶ
を越える大出力の工業用レントゲン機器のリード線とし
て適する高電圧電子機器用ケーブルを提供することを目
的としている。Therefore, according to the present invention, the circuit voltage is 200 kV.
It is an object of the present invention to provide a cable for high-voltage electronic equipment, which is suitable as a lead wire for a high-power industrial X-ray equipment having a high output.
【０００７】[0007]
【課題を解決するための手段】本発明の高電圧電子機器
用ケーブルは、補強索の外周に、低圧絶縁線心の複数条
と、第３線心とがより合わせられ、この外側には、順
次、内部半導電層、高圧絶縁体、外部遮蔽層及びシース
が設けられていることを特徴とする。In the cable for high-voltage electronic equipment of the present invention, a plurality of low-voltage insulating wire cores and a third wire core are twisted together on the outer periphery of the reinforcing cable, and the outside of this is It is characterized in that an inner semiconductive layer, a high-voltage insulator, an outer shield layer and a sheath are sequentially provided.
【０００８】[0008]
【作用】本発明においては、補強索の外周に、低圧絶縁
線心の複数条と、第３線心とがより合わせられ、この外
側に半導電層を設けることによって、半導電層の被覆後
の外径を太くしているので、高圧絶縁体の半導電層側の
電位傾度を小さくすることができる。According to the present invention, a plurality of low-voltage insulating wire cores and a third wire core are twisted together on the outer periphery of the reinforcing cord, and a semiconductive layer is provided on the outer side of the wire, so that the semiconductive layer is not covered with the wire. Since the outer diameter of is high, the potential gradient on the semiconductive layer side of the high-voltage insulator can be reduced.
【０００９】[0009]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。図１は本発明の一実施例を示す横断面図である。
図１において、符号８は、直径が３〜５mm程度のポリア
ミド樹脂からなる補強索を示しており、この補強索８の
外周には、低圧絶縁線心９の９条と、第３線心１０の４
条とがより合わせられており、この外周には、肉厚が
０．８mm〜１．０mmの内部半導電層１１が押出被覆され
ている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing an embodiment of the present invention.
In FIG. 1, reference numeral 8 indicates a reinforcing cord made of a polyamide resin having a diameter of about 3 to 5 mm. The reinforcing cord 8 has an outer periphery on which nine low-voltage insulating cores 9 and a third core 10 are provided. Of 4
The inner semiconductive layer 11 having a wall thickness of 0.8 mm to 1.0 mm is extrusion-coated on the outer periphery of the inner semiconductive layer 11.
【００１０】なお、低圧絶縁線心９は、導体サイズが
１．０mm2 〜１．５mm2 の導体９ａと、この外周に設け
られた肉厚が０．４mm程度の弗素樹脂もしくは０．８mm
程度のエチレンプロピレンゴムの押出被覆からなる絶縁
層９ｂとで構成されている。[0010] Incidentally, the low-pressure insulated core wires 9, and the conductor 9a of conductor size 1.0 mm 2 1.5 mm 2, fluororesin or 0.8mm thickness of approximately provided is 0.4mm in the outer peripheral
And an insulating layer 9b made of extrusion-coated ethylene propylene rubber.
【００１１】第３線心１０は、その外径が低圧絶縁線心
９の外径と同径もしくはそれより小径のもの、例えば直
径０．１８mmの軟銅線を３０本集合よりしたもので構成
されている。なお、第３線心１０の外周には、必要によ
り、半導電性のゴム被覆層（不図示）を設けてもよい。The third core 10 has an outer diameter equal to or smaller than that of the low-voltage insulating core 9, for example, a set of 30 annealed copper wires having a diameter of 0.18 mm. ing. A semiconductive rubber coating layer (not shown) may be provided on the outer periphery of the third wire core 10 if necessary.
【００１２】しかして、この内部半導電層１１上には、
肉厚が３．０mm程度のエチレンプロピレンゴムの押出被
覆から成る高圧絶縁体１２が設けられ、この上には、導
線の編組により構成される外部遮蔽層１３及び軟質ポリ
塩化ビニル樹脂の押出被覆から成るシース１４が設けら
れている。On the inner semiconductive layer 11, however,
A high-voltage insulator 12 made of extrusion-coated ethylene propylene rubber having a wall thickness of about 3.0 mm is provided, on which an external shielding layer 13 composed of a braided conductor wire and an extrusion-coated soft polyvinyl chloride resin are provided. A sheath 14 is provided.
【００１３】なお、低圧絶縁線心９や第３線心１０の条
数は、上記実施例に限定されず、低圧絶縁線心９は少な
くとも２条あれば、十分であり、また第３線心１０は少
なくとも１条あれば十分である。いずれにしても、低圧
絶縁線心９及び第３線心１０が所要の条数を越える場合
には、ケーブル端末部において、低圧絶縁線心９と第３
線心１０とにそれぞれブロックに纏められ、ブロック毎
に一括して処理される。また補強索８は、ポリアミド樹
脂に限定されず、高電圧電子機器用ケーブルに付与され
るテンション少ない場合には、ゴム紐等で形成しても良
い。The number of the low-voltage insulating cores 9 and the third cores 10 is not limited to that in the above embodiment, and it is sufficient if the low-voltage insulating cores 9 are at least two, and the third cores are sufficient. It is sufficient for 10 to have at least one article. In any case, when the low-voltage insulation core 9 and the third core 10 exceed the required number of threads, the low-voltage insulation core 9 and the third core 3
The core 10 and the core 10 are grouped into blocks, and the blocks are collectively processed. The reinforcing cord 8 is not limited to the polyamide resin, and may be formed of a rubber cord or the like when the tension applied to the high voltage electronic device cable is small.
【００１４】かかる構成の高電圧電子機器用ケーブルに
おいては、内部半導電層の被覆後の外径を、従来の高電
圧電子機器用ケーブルの半導電層の被覆後の外径より
も、かなり太くしているので、高圧絶縁体の半導電層側
の電位傾度を大きくすることができる。また、補強索８
は、高電圧電子機器用ケーブルをリールに巻収した場合
においては、テンションとしても兼用することができ
る。In the cable for high-voltage electronic equipment having such a structure, the outer diameter after coating the inner semiconductive layer is considerably thicker than the outer diameter after coating the semiconductive layer in the conventional cable for high-voltage electronic equipment. Therefore, the potential gradient on the semiconductive layer side of the high-voltage insulator can be increased. Also, the reinforcement cord 8
Can be used also as a tension when the high voltage electronic device cable is wound on a reel.
【００１５】[0015]
【発明の効果】本発明の高電圧電子機器用ケーブルにお
いては、高圧絶縁体の内部半導電層側の電位傾度が大き
いので、回路電圧が２００ｋＶを越える工業用のレント
ゲン機器のリード線として使用することができる。INDUSTRIAL APPLICABILITY In the cable for high-voltage electronic equipment of the present invention, since the potential gradient on the inner semiconductive layer side of the high-voltage insulator is large, it is used as a lead wire for industrial roentgen equipment whose circuit voltage exceeds 200 kV. be able to.
【図１】本考案の高電圧電子機器用ケーブルの横断面図
を示している。FIG. 1 shows a cross-sectional view of a cable for high voltage electronic equipment of the present invention.
【図２】従来の高電圧電子機器用ケーブルの横断面図示
している。FIG. 2 is a cross-sectional view of a conventional cable for high-voltage electronic equipment.
８…………補強索 ９…………低圧絶縁線心 １０…………第３線心 １１…………内部半導電層 １２…………高圧絶縁体 １３…………外部遮蔽層 １４…………シース 8: Reinforcing cable 9: Low voltage insulating core 10: Third core 11: Internal semiconductive layer 12: High voltage insulator 13: External shielding layer 14 ………… Sheath
Claims (1)
と、第３線心とがより合わせられ、この外側には、順
次、内部半導電層、高圧絶縁体、外部遮蔽層及びシース
が設けられていることを特徴とする高電圧電子機器用ケ
ーブル。1. A plurality of low-voltage insulating wire cores and a third wire core are twisted together on the outer periphery of a reinforcing cord, and on the outer side thereof, an inner semiconductive layer, a high-voltage insulator, an outer shield layer, and A cable for high-voltage electronic equipment, which is provided with a sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32576392A JPH06176630A (en) | 1992-12-04 | 1992-12-04 | Cable for high-voltage electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32576392A JPH06176630A (en) | 1992-12-04 | 1992-12-04 | Cable for high-voltage electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06176630A true JPH06176630A (en) | 1994-06-24 |
Family
ID=18180354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32576392A Pending JPH06176630A (en) | 1992-12-04 | 1992-12-04 | Cable for high-voltage electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06176630A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005527962A (en) * | 2002-05-27 | 2005-09-15 | テレフオンアクチーボラゲット エル エム エリクソン（パブル） | Cable with shield strip |
| JP2010182532A (en) * | 2009-02-05 | 2010-08-19 | Swcc Showa Cable Systems Co Ltd | Cable for high-voltage electronic device |
| CN103345968A (en) * | 2013-07-01 | 2013-10-09 | 无锡市群星线缆有限公司 | Flexible cable for crane |
-
1992
- 1992-12-04 JP JP32576392A patent/JPH06176630A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005527962A (en) * | 2002-05-27 | 2005-09-15 | テレフオンアクチーボラゲット エル エム エリクソン（パブル） | Cable with shield strip |
| JP2010182532A (en) * | 2009-02-05 | 2010-08-19 | Swcc Showa Cable Systems Co Ltd | Cable for high-voltage electronic device |
| CN103345968A (en) * | 2013-07-01 | 2013-10-09 | 无锡市群星线缆有限公司 | Flexible cable for crane |
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