JPS6144341Y2 - - Google Patents
Info
- Publication number
- JPS6144341Y2 JPS6144341Y2 JP1981179131U JP17913181U JPS6144341Y2 JP S6144341 Y2 JPS6144341 Y2 JP S6144341Y2 JP 1981179131 U JP1981179131 U JP 1981179131U JP 17913181 U JP17913181 U JP 17913181U JP S6144341 Y2 JPS6144341 Y2 JP S6144341Y2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- metal
- shielding
- water
- tape
- 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
Links
- 239000002184 metal Substances 0.000 claims description 24
- 239000004020 conductor Substances 0.000 claims description 6
- 230000015556 catabolic process Effects 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Description
【考案の詳細な説明】
本考案は、遮水形電力ケーブルの改良に関す
る。導体の電流や導体へのサージの侵入によつ
て、金属遮蔽層や遮水用金属層には電圧が誘起さ
れるので、ケーブル端でそれらの金属層を接地す
ることが行われている。しかしながら、一般に遮
水用金属層は薄い金属箔にて構成されたものであ
るので、ケーブル長さ方向での電気抵抗が大き
く、このため接地端から遠く隔たつた箇所では誘
起電圧の除去が不充分となりがちである。特に、
導体にサージが侵入した際には該層に大きな誘起
電圧が発生し、一般に接地効果の充分な金属遮蔽
層との間に大きな電位差が生じる問題がある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in water-shielded power cables. Since voltage is induced in the metal shielding layer and the water-shielding metal layer due to current in the conductor or surge entering the conductor, these metal layers are grounded at the end of the cable. However, since the water-shielding metal layer is generally made of thin metal foil, the electrical resistance in the length direction of the cable is large, making it difficult to remove the induced voltage at locations far away from the grounding end. It tends to be sufficient. especially,
When a surge enters a conductor, a large induced voltage is generated in the layer, and there is a problem in that a large potential difference is generated between the layer and the metal shielding layer, which generally has a sufficient grounding effect.
本考案は、上記の問題の解決された新規な遮水
形電力ケーブルを提案するものであつて、金属遮
蔽層の上に施される抑えテープとして導電性のも
のを用い、金属遮蔽層と遮水用金属層とを該導電
性抑えテープを介して電気的に導通させることを
特徴とするものである。 The present invention proposes a new water-shielded power cable that solves the above-mentioned problems, and uses conductive tape as a pressure tape to be applied on the metal shielding layer. The metal layer for water is electrically connected to the metal layer through the conductive tape.
付図は、本考案の実施例の斜視図であつて、１
は導体、２は内部半導電層、３は絶縁層、４は外
部半導電層、５はワイヤーシールド形の金属遮蔽
層、６は導電性抑えテープを巻回してなる抑えテ
ープ層、７は金属ラミネートテープを、該テープ
の金属層を抑えテープ層７側として縦沿えしてな
る遮水用金属層、及び８はシースである。金属遮
蔽層５と遮水用金属層７とは、遮水金属層の面積
１cm2あたり10kΩ程度以下となる導通性で充分効
果があるので、上記の導電性抑えテープとして
は、その様な導通性を付与し得るものであれば特
に制限がなく、たとえばカーボンブラツクや金属
粉などの導電性付与剤を配合したプラスチツクフ
イルム、天然又は合成繊維の織布、不織布に導電
性のゴムやプラスチツクを含浸したもの、あるい
は織布、不織布に金属線を織り込んだものなどが
用いられる。体積抵抗率が10Ωcm以下の良導電性
テープが特に好適である。 The attached figure is a perspective view of an embodiment of the present invention, and shows 1
is a conductor, 2 is an inner semiconducting layer, 3 is an insulating layer, 4 is an outer semiconducting layer, 5 is a wire shield type metal shielding layer, 6 is a restraining tape layer formed by winding a conductive restraining tape, and 7 is a metal A water-shielding metal layer is formed by holding a laminate tape vertically on the tape layer 7 side while suppressing the metal layer of the tape, and 8 is a sheath. The metal shielding layer 5 and the water-shielding metal layer 7 are sufficiently effective with a conductivity of about 10 kΩ or less per cm 2 of area of the water-shielding metal layer. There is no particular restriction as long as it can impart conductivity, such as plastic films containing conductivity imparting agents such as carbon black or metal powder, woven fabrics of natural or synthetic fibers, and non-woven fabrics impregnated with conductive rubber or plastic. woven or non-woven fabric with metal wire woven into it. A highly conductive tape with a volume resistivity of 10 Ωcm or less is particularly suitable.
本考案によれば、層５と層７との間に電位差は
生じず、従つて、たとえ導体にサージが侵入して
も上記の両層間での絶縁破壊及び該破壊に由来す
る層７の穴あきの問題が解消する。 According to the present invention, no potential difference occurs between the layer 5 and the layer 7, and therefore, even if a surge enters the conductor, the above-mentioned dielectric breakdown between the two layers and the hole in the layer 7 resulting from the breakdown occur. The problem of space is solved.
付図は本考案実施例の斜視図であつて、５は金
属遮蔽層、６は導電性の抑えテープ層、７は遮水
用金属層である。
The attached figure is a perspective view of an embodiment of the present invention, in which 5 is a metal shielding layer, 6 is a conductive tape layer, and 7 is a water-shielding metal layer.
Claims (1)
層、抑え巻きテープ、遮水用金属層、及びシース
を設けた遮水形電力ケーブルに於て、上記抑え巻
きテープとして導電性のものを用いて金属遮蔽層
と遮水用金属層とを電気的に導通させてなること
を特徴とする遮水形電力ケーブル。 In a water-shielded power cable in which a metal shielding layer, a pressure-wrapping tape, a water-shielding metal layer, and a sheath are provided on the outer semiconductive layer of the cable core, a conductive material is used as the pressure-wrap tape. A water-shielding power cable characterized by electrically conducting a metal shielding layer and a water-shielding metal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17913181U JPS5882719U (en) | 1981-11-30 | 1981-11-30 | Waterproof power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17913181U JPS5882719U (en) | 1981-11-30 | 1981-11-30 | Waterproof power cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5882719U JPS5882719U (en) | 1983-06-04 |
| JPS6144341Y2 true JPS6144341Y2 (en) | 1986-12-13 |
Family
ID=29974544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17913181U Granted JPS5882719U (en) | 1981-11-30 | 1981-11-30 | Waterproof power cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5882719U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5247736U (en) * | 1975-10-01 | 1977-04-05 | ||
| JPS5258890A (en) * | 1975-11-11 | 1977-05-14 | Hitachi Cable Ltd | Power cable |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55120030U (en) * | 1979-02-19 | 1980-08-25 | ||
| JPS6116570Y2 (en) * | 1980-03-27 | 1986-05-22 | ||
| JPS57157023U (en) * | 1981-03-30 | 1982-10-02 |
-
1981
- 1981-11-30 JP JP17913181U patent/JPS5882719U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5247736U (en) * | 1975-10-01 | 1977-04-05 | ||
| JPS5258890A (en) * | 1975-11-11 | 1977-05-14 | Hitachi Cable Ltd | Power cable |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5882719U (en) | 1983-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3794750A (en) | Shielded cable | |
| JPS641702Y2 (en) | ||
| US3312774A (en) | Semi-insulating shielding for cables and the like and comprising discrete "floating"patches of semi-conductive material | |
| EP0604398A3 (en) | Electromagnetically shielded cable | |
| JPH0715310Y2 (en) | Terminated high voltage cable | |
| JPS589521B2 (en) | Namigatano Kinzokushisuo Gubishita Denki Cable | |
| JPS6144341Y2 (en) | ||
| GB1591597A (en) | Electrical connector | |
| CN212907153U (en) | Power line | |
| ES8104658A1 (en) | Sealing end for direct current electric cables | |
| JP3036643B2 (en) | Cable connection | |
| JPS6213292Y2 (en) | ||
| JPH0517850U (en) | Impermeable power cable | |
| JP2643488B2 (en) | Zero-phase current transformer | |
| JPS5925521A (en) | Power cable connector | |
| JPS583218Y2 (en) | shielded power cable | |
| JP2530097Y2 (en) | Terminal for lightning impulse test | |
| JPS6210903Y2 (en) | ||
| JP3571143B2 (en) | Metal cross-linked polyethylene insulated power cable | |
| JPH0212114U (en) | ||
| JPH0112508Y2 (en) | ||
| JPS58192422A (en) | Insulated junction box for power cable | |
| JP2000353433A (en) | Hydrotaxis-proof cable | |
| JPH044518A (en) | Induction preventing tape cable | |
| JPS6219042Y2 (en) |