JP2906592B2 - How to connect high-voltage power cables in human holes - Google Patents
How to connect high-voltage power cables in human holesInfo
- Publication number
- JP2906592B2 JP2906592B2 JP15823790A JP15823790A JP2906592B2 JP 2906592 B2 JP2906592 B2 JP 2906592B2 JP 15823790 A JP15823790 A JP 15823790A JP 15823790 A JP15823790 A JP 15823790A JP 2906592 B2 JP2906592 B2 JP 2906592B2
- Authority
- JP
- Japan
- Prior art keywords
- human hole
- cable
- power cable
- voltage power
- offset
- 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
- 238000000034 method Methods 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 241000722921 Tulipa gesneriana Species 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
Landscapes
- Processing Of Terminals (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Cable Accessories (AREA)
Description
【発明の詳細な説明】 (産業上の利用分野) 本発明は管路内布設の66KV級以上の高電圧電力ケーブ
ルの人孔内における接続方法に関するものである。Description: TECHNICAL FIELD The present invention relates to a method of connecting a high-voltage power cable of 66 KV class or higher laid in a pipeline in a human hole.
(従来の技術及び解決しようとする課題) 第2図は従来の人孔内における電力ケーブルの接続方
法の説明図である。(Prior Art and Problems to be Solved) FIG. 2 is an explanatory view of a conventional method of connecting a power cable in a human hole.
電力ケーブルの中間接続部としては、直線普通接続
部、直線絶縁接続部がある。図面に示すように、管路
(3)内布設の電力ケーブル(1)を人孔(2)内で接
続する場合、その接続部(5)は直線形状となるため、
人孔(2)内での電力ケーブルの伸び出し吸収用のオフ
セット(1b)は、図のように円弧(R1)(R2)連接のオ
フセット(1b)をとる必要があり、このオフセット(1
b)長により人孔(2)の長さを決定しなければなら
ず、必然的に人孔(2)長が長くなるという問題点があ
った。The intermediate connection part of the power cable includes a straight normal connection part and a straight insulation connection part. As shown in the drawing, when the power cable (1) laid in the pipeline (3) is connected in the human hole (2), the connecting portion (5) has a linear shape.
Offset for growth out absorption of power cables in the manhole (2) in (1b) is an arc as shown in FIG. (R 1) (R 2) must take the concatenation of offset (1b), this offset ( 1
b) The length of the human hole (2) must be determined according to the length, and there is a problem that the length of the human hole (2) is inevitably increased.
(課題を解決するための手段) 本発明は上述の問題点を解消し、人孔長の減縮を可能
とした66KV級以上の高電圧電力ケーブルの人孔内接続方
法を提供するもので、その特徴は、人孔内において互い
に対向する接続すべき電力ケーブルをそれぞれ一円弧の
オフセットをとり、前記一円弧のオフセットの曲げ半径
は前記電力ケーブルの伸び出し後、前記電力ケーブルの
許容曲げ半径を超えないよう設定し、さらにそれぞれの
ケーブルを同一方向から並行に位置せしめ、接続するこ
とにある。(Means for Solving the Problems) The present invention solves the above-mentioned problems and provides a method for connecting a high-voltage power cable of 66 KV class or higher in a human hole, which enables reduction of the human hole length. The feature is that each of the power cables to be connected facing each other in the human hole is offset by one arc, and the bending radius of the one arc offset exceeds the allowable bending radius of the power cable after the power cable extends. Setting, and laying and connecting each cable in parallel from the same direction.
(実施例) 第1図は本発明の高電圧電力ケーブルの人孔内接続方
法の具体例の説明図である。(Embodiment) FIG. 1 is an explanatory diagram of a specific example of a method for connecting a high-voltage power cable in a human hole according to the present invention.
図面に示すように、管路(3)から人孔(2)内に入
った電力ケーブルはそれぞれ一円弧(R)のオフセット
(1a)をとる。そして、それぞれのケーブル(1)を同
一方向から並行に位置せしめて接続し、接続部(4)を
得る。As shown in the drawing, the power cables entering the human hole (2) from the pipe (3) each have an offset (1a) of one circular arc (R). Then, the respective cables (1) are positioned and connected in parallel from the same direction to obtain a connection part (4).
第4図はこのような電力ケーブル接続部(4)の一例
の右半分断面をあらわした正面図である。図の例は架橋
ポリエチレン絶縁電力ケーブルの場合を示しており、図
の左右は対称である。FIG. 4 is a front view showing a right half section of an example of such a power cable connection portion (4). The example of the figure shows the case of a crosslinked polyethylene insulated power cable, and the left and right sides of the figure are symmetric.
図面に示すように、電力ケーブル(1)の端部は通常
の接続と同様に段剥きされる。そして導体(11)端部に
はチューリップコンタクトのオス端子(22)が圧縮接続
等により接続され、ケーブル絶縁体(12)上にはプレモ
ールド絶縁体(21)が装置され、ケーブルの金属遮蔽層
(13)は本体金属ケース(25)に取付けた接続棒(25
a)に接続されている。As shown in the drawing, the end of the power cable (1) is stripped in the same manner as a normal connection. A male terminal (22) of a tulip contact is connected to the end of the conductor (11) by compression connection or the like, a pre-molded insulator (21) is provided on the cable insulator (12), and a metal shielding layer of the cable is provided. (13) is a connecting rod (25) attached to the main body metal case (25).
a) connected to
上記チューリップコンタクトのオス端子(22)はメス
端子(23)に嵌合しており、ケーブル導体(11)はこの
メス端子(23)を介して相手方ケーブルの導体と電気的
に接続される。(24)はエポキシ絶縁体である。このよ
うな接続部は本体金属ケース(25)にて覆われており、
その外周上には防食層(26)が施されている。又ケーブ
ル(1)と本体金属ケース(25)の間には防水テープ
(27)が施されている。The male terminal (22) of the tulip contact is fitted to the female terminal (23), and the cable conductor (11) is electrically connected to the conductor of the mating cable via the female terminal (23). (24) is an epoxy insulator. Such a connection part is covered with a main body metal case (25),
An anticorrosion layer (26) is provided on the outer periphery. A waterproof tape (27) is provided between the cable (1) and the main body metal case (25).
(作用) 例えば66KV〜156KV、CVケーブルの人孔内接続部際オ
フセットとして、通常2円弧連続オフセットないし3円
弧連接オフセットが標準であるが、例えば管路からのケ
ーブルの伸び出しが150mmある場合、伸び出し後のケー
ブル曲げ半径を10D(D:ケーブル外径)とすると(10Dが
ケーブル許容曲率半径となっている)7〜9m程度の人孔
長が必要である。(Operation) For example, as the offset at the connection portion in the human hole of the 66V to 156KV, CV cable, a normal two-arc continuous offset or a three-arc continuous offset is standard, but for example, when the extension of the cable from the pipeline is 150 mm, Assuming that the cable bending radius after extension is 10D (D: cable outer diameter) (10D is a cable allowable radius of curvature), a manhole length of about 7 to 9 m is required.
これに対し、本発明の接続方法の接続部では、第3図
に示す通り4.5m程度の人孔長で150mmのケーブルの伸び
出しを吸収できるオフセットを収納することが可能とな
り、従来の人孔長を半減することができる。On the other hand, in the connection part of the connection method of the present invention, as shown in FIG. 3, it is possible to store an offset capable of absorbing the extension of a 150 mm cable with a human hole length of about 4.5 m, and a conventional human hole. The length can be halved.
(発明の効果) 以上説明したように、本発明の高電圧電力ケーブルの
人孔内接続方法によれば、人孔長を著しく減縮すること
が可能となり、工事費用を大幅に低減することができ
る。(Effects of the Invention) As described above, according to the method for connecting a high-voltage power cable in a human hole according to the present invention, the human hole length can be significantly reduced, and the construction cost can be significantly reduced. .
第1図は本発明の接続方法の具体例の説明図である。 第2図は従来の接続方法の説明図である。 第3図は本発明の接続方法による人孔内ケーブルの状態
図である。 第4図は本発明の接続方法における電力ケーブル接続部
の一例の右半分断面をあらわした正面図である。 1…電力ケーブル、1a…オフセット部、2…人孔、3…
…管路、4…接続部。FIG. 1 is an explanatory diagram of a specific example of the connection method of the present invention. FIG. 2 is an explanatory diagram of a conventional connection method. FIG. 3 is a state diagram of a cable in a human hole according to the connection method of the present invention. FIG. 4 is a front view showing a right half cross section of an example of a power cable connection portion in the connection method of the present invention. DESCRIPTION OF SYMBOLS 1 ... Power cable, 1a ... Offset part, 2 ... Human hole, 3 ...
... pipeline, 4 ... connection part.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭52−100192(JP,A) 特開 平2−203302(JP,A) 実開 昭58−51625(JP,U) 実開 昭64−40806(JP,U) 実開 昭58−53373(JP,U) 実開 昭53−139590(JP,U) 特公 昭61−26292(JP,B2) 特公 昭52−21199(JP,B2) 実公 昭59−22771(JP,Y2) 実公 昭57−1561(JP,Y2) 実公 昭60−13239(JP,Y2) 実公 昭48−29992(JP,Y1) (58)調査した分野(Int.Cl.6,DB名) H02G 9/00 - 9/12 H02G 15/00 - 15/196 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-52-100192 (JP, A) JP-A-2-203302 (JP, A) Full-open 58-51625 (JP, U) Full-open 64-64 40806 (JP, U) Japanese Utility Model Showa 58-53373 (JP, U) Japanese Utility Model Application Showa 53-139590 (JP, U) JP-B 61-26292 (JP, B2) JP-B 52-21199 (JP, B2) Japanese Utility Model Sho 59-22771 (JP, Y2) Japanese Utility Model Sho 57-1561 (JP, Y2) Japanese Utility Model Sho 60-13239 (JP, Y2) Japanese Utility Model Sho 48-29992 (JP, Y1) (58) (Int.Cl. 6 , DB name) H02G 9/00-9/12 H02G 15/00-15/196
Claims (1)
における接続方法であって、人孔内において互いに対向
する接続すべき電力ケーブルをそれぞれ一円弧のオフセ
ットをとり、前記一円弧のオフセットの曲げ半径は前記
電力ケーブルの伸び出し後、前記電力ケーブルの許容曲
げ半径を超えないよう設定し、さらにそれぞれのケーブ
ルを同一方向から並行に位置せしめ接続することを特徴
とする高電圧電力ケーブルの人孔内接続方法。1. A method of connecting a high-voltage power cable of 66 KV class or more in a human hole, wherein the power cables to be connected to each other in the human hole are offset by one arc, and the one arc is offset. The bending radius of the high-voltage power cable is set so that, after the power cable extends, the bending radius is set so as not to exceed an allowable bending radius of the power cable, and the respective cables are positioned and connected in parallel from the same direction. Connection method in human hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15823790A JP2906592B2 (en) | 1990-06-15 | 1990-06-15 | How to connect high-voltage power cables in human holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15823790A JP2906592B2 (en) | 1990-06-15 | 1990-06-15 | How to connect high-voltage power cables in human holes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0449808A JPH0449808A (en) | 1992-02-19 |
| JP2906592B2 true JP2906592B2 (en) | 1999-06-21 |
Family
ID=15667272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15823790A Expired - Lifetime JP2906592B2 (en) | 1990-06-15 | 1990-06-15 | How to connect high-voltage power cables in human holes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2906592B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4589430B2 (en) * | 1998-12-24 | 2010-12-01 | 昭和電線ケーブルシステム株式会社 | Cable connection |
| DE102005010681B4 (en) * | 2005-03-09 | 2016-05-04 | Leybold Optics Gmbh | Measuring arrangement for optical monitoring of coating processes |
| WO2012108427A1 (en) * | 2011-02-08 | 2012-08-16 | 古河電気工業株式会社 | Superconducting cable line |
| JP6314022B2 (en) * | 2014-04-11 | 2018-04-18 | 昭和電線ケーブルシステム株式会社 | Superconducting current lead and method of manufacturing superconducting current lead |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5221199B2 (en) | 2008-05-07 | 2013-06-26 | 学校法人早稲田大学 | Polymer laminated film |
| JP6126292B2 (en) | 2013-11-19 | 2017-05-10 | 株式会社ワコム | Ink data output method and ink data output device |
-
1990
- 1990-06-15 JP JP15823790A patent/JP2906592B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5221199B2 (en) | 2008-05-07 | 2013-06-26 | 学校法人早稲田大学 | Polymer laminated film |
| JP6126292B2 (en) | 2013-11-19 | 2017-05-10 | 株式会社ワコム | Ink data output method and ink data output device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0449808A (en) | 1992-02-19 |
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