JP2003083836A - Airtightness test terminal structure of corrugated metal sheathed cable - Google Patents

Airtightness test terminal structure of corrugated metal sheathed cable

Info

Publication number
JP2003083836A
JP2003083836A JP2001280060A JP2001280060A JP2003083836A JP 2003083836 A JP2003083836 A JP 2003083836A JP 2001280060 A JP2001280060 A JP 2001280060A JP 2001280060 A JP2001280060 A JP 2001280060A JP 2003083836 A JP2003083836 A JP 2003083836A
Authority
JP
Japan
Prior art keywords
metal sheath
terminal structure
stopper
corrugated metal
airtightness test
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
Application number
JP2001280060A
Other languages
Japanese (ja)
Inventor
Hiroyuki Ishiyama
浩之 石山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujikura Ltd
Original Assignee
Fujikura Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujikura Ltd filed Critical Fujikura Ltd
Priority to JP2001280060A priority Critical patent/JP2003083836A/en
Publication of JP2003083836A publication Critical patent/JP2003083836A/en
Pending legal-status Critical Current

Links

Landscapes

  • Examining Or Testing Airtightness (AREA)
  • Electric Cable Installation (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Cable Accessories (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a terminal structure having high reliability, capable of executing simply terminal processing, concerning the terminal structure for executing an airtightness test of a power cable having a corrugated metal sheath. SOLUTION: This terminal structure is equipped with a discoid metal lid for covering the metal sheath end, a ring rubber packing mounted in close connection with the metal lid and the metal sheath end, a stopper locked on troughs of the wave of the metal sheath, and a fastening bolt for fastening the metal lid to the stopper.

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】本発明は、アルミ及びステン
レス等の波付き金属シースの健全性確認の為、実施する
気密試験のケーブル端末構造に関する。 【0002】 【従来の技術】従来の波付き金属シースケーブルの金属
シース気密試験端末は、図3に示すように、気密試験用
キャップ30を電力ケーブルの波付き金属シース11に
鉛工31により接続するものである。なお、金属シース
11は、その端が、ケーブルコア10の端より先の位置
まで押出される。 【0003】気密試験は、キャップ30の先頭に設けた
コネクタ33を介してN2 ガス等を圧入した後の圧力変
化によりその漏れを検出するものである。 【0004】 【発明が解決しようとする課題】しかしながら、前記従
来の鉛工による気密試験端末処理では多くの処理時間を
要するとともに、熟練した鉛工技量を要するものであっ
た。 【0005】本発明は、上記問題点に鑑みてなされたも
のであって、信頼性が高く、しかも気密試験の端末処理
を比較的簡易に行なえる波付き金属シースケーブルの気
密試験端末構造を提供することを目的とする。 【0006】 【課題を解決するための手段】本発明は、前記目的を達
成するため、次のような構成を有する。 【0007】波付き金属シースを有する電力ケーブルの
気密試験を実施するための端末構造であって、前記金属
シース端を覆う円板状金属蓋と、この金属蓋と金属シー
ス端とに密接して装着される環状のゴムパッキングと、
前記金属シースの波形状に嵌合し、係止される凸部を有
するストッパーと、前記円板状金属蓋を前記ストッパー
に締結させる締結ボルトとを備え、前記円板状金属蓋を
前記ストッパーに前記締結ボルトによって固定すること
により前記ゴムパッキングが圧縮され、シールするもの
であることを特徴とする波付き金属シースケーブルの気
密試験端末構造である。 【0008】 【発明の実施の形態】図1は、本発明に係る波付き金属
シースケーブルの気密試験端末構造の実施例を示す半裁
縦断面図である。 【0009】アルミ及びステンレス等の波付き金属シー
ス11の端面に環状のゴムパッキング1をあてがい、こ
のゴムパッキング1は円板状金属蓋2と金属シース11
の端面とで挟み込まれる。円板状金属蓋2はストッパー
3にスタットボルト5によって固定される。ストッパー
3は金属シース11の波形状に嵌合する凸部4を有し、
ケーブル軸方向の力に対して係止される。このスタット
ボルト5のナット6を締めることによりゴムパッキング
1が圧縮され、金属シース11内がシール(気密)され
るものである。なお、円板状金属蓋2の中心には孔を有
しガス封入のコネクタ7が取付けられ、N2 ガスボンベ
(図示せず)等に接続される。 【0010】また、ストッパー3は、図2に示すよう
に、2つ割構造であり、内面に金属シース11の波形状
に嵌合する凸部4を有するものである。符号8は締結ボ
ルト5を通す孔であり、符号9はボルトである。 【0011】勿論、ケーブルの両端にこの気密端末構造
が施されるものであるが、他端における円板状金属蓋2
は中心に孔を有さないものであってもよい。 【0012】上記のように気密端末処理を図った後、ア
ルミ及びステンレス等の波付き金属シースの健全性確認
のために加圧試験を行う。加圧試験の圧力は1kg/cm2
度である。本発明の気密試験端末構造は、圧力2kg/cm2
まで耐える。 【0013】上記本発明の波付き金属シースケーブルの
気密試験端末構造における端末処理作業時間は、従来の
鉛工による端末処理作業時間に比べ大幅に短縮(1/1
00以上)される。 【0014】 【発明の効果】以上説明したような本発明によれば、ア
ルミ及びステンレス等の波付き金属シースの健全性確認
のため実施する気密試験の端末処理を信頼性が高く、し
かも短時間に行うことが出来るので、その実用的効果は
大きい。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable end structure for an airtightness test for checking the soundness of a corrugated metal sheath such as aluminum and stainless steel. 2. Description of the Related Art As shown in FIG. 3, a conventional metal sheath airtight test terminal of a corrugated metal sheath cable connects an airtight test cap 30 to a corrugated metal sheath 11 of a power cable by a leader 31. To do. In addition, the end of the metal sheath 11 is extruded to a position beyond the end of the cable core 10. In the airtightness test, leakage is detected by a change in pressure after N 2 gas or the like is injected through a connector 33 provided at the head of the cap 30. [0004] However, in the above-mentioned conventional airtight test terminal processing by the lead processing, a long processing time is required and a skilled lead processing skill is required. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides an airtight test terminal structure of a corrugated metal sheath cable which has high reliability and can relatively easily perform an airtight test terminal process. The purpose is to do. The present invention has the following configuration in order to achieve the above object. [0007] A terminal structure for performing an airtightness test of a power cable having a corrugated metal sheath, comprising: a disk-shaped metal cover for covering an end of the metal sheath; Annular rubber packing to be attached,
A stopper having a convex portion fitted and locked to the corrugated shape of the metal sheath, and a fastening bolt for fastening the disc-shaped metal lid to the stopper, wherein the disc-shaped metal lid is attached to the stopper. The rubber packing is compressed and sealed by being fixed by the fastening bolts, which is an airtight test terminal structure of a corrugated metal sheath cable. FIG. 1 is a half cut longitudinal sectional view showing an embodiment of an airtight test terminal structure of a corrugated metal sheath cable according to the present invention. An annular rubber packing 1 is applied to an end surface of a corrugated metal sheath 11 made of aluminum, stainless steel or the like, and the rubber packing 1 is composed of a disc-shaped metal lid 2 and a metal sheath 11.
Sandwiched between the end faces. The disk-shaped metal lid 2 is fixed to a stopper 3 by a stat bolt 5. The stopper 3 has a convex portion 4 that fits into the corrugated shape of the metal sheath 11,
Locked against force in the cable axial direction. By tightening the nut 6 of the stat bolt 5, the rubber packing 1 is compressed, and the inside of the metal sheath 11 is sealed (airtight). A gas-filled connector 7 having a hole at the center of the disc-shaped metal lid 2 is attached and connected to an N 2 gas cylinder (not shown). As shown in FIG. 2, the stopper 3 has a split structure, and has a convex portion 4 fitted on the inner surface of the metal sheath 11 in a wave shape. Reference numeral 8 denotes a hole through which the fastening bolt 5 passes, and reference numeral 9 denotes a bolt. Of course, the airtight terminal structure is provided at both ends of the cable.
May not have a hole in the center. After the airtight terminal treatment is performed as described above, a pressure test is performed to confirm the soundness of a corrugated metal sheath such as aluminum and stainless steel. The pressure in the pressure test is about 1 kg / cm 2 . The airtight test terminal structure of the present invention has a pressure of 2 kg / cm 2
Endure until. The terminal processing work time in the terminal structure for airtightness test of the corrugated metal sheath cable of the present invention is greatly reduced (1/1) as compared with the terminal processing work time by the conventional lead work.
00 or more). According to the present invention as described above, the terminal treatment of the airtightness test for confirming the soundness of the corrugated metal sheath such as aluminum and stainless steel is highly reliable and can be performed in a short time. Therefore, the practical effect is great.

【図面の簡単な説明】 【図1】本発明に係る波付き金属シースケーブルの気密
試験端末構造の実施例を示す半裁縦断面図である。 【図2】図1の実施例で使用されるストッパーの説明図
である。 【図3】従来の波付き金属シースケーブルの気密試験端
末構造を示す半裁縦断面図である。 【符号の説明】 1 環状ゴムパッキング 2 金属蓋 3 ストッパー 4 凸部 5 締結ボルト 6 ナット 7 コネクタ 10 ケーブルコア 11 ケーブル波付き金属シース
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a half cut longitudinal sectional view showing an embodiment of an airtight test terminal structure of a corrugated metal sheath cable according to the present invention. FIG. 2 is an explanatory view of a stopper used in the embodiment of FIG. FIG. 3 is a half longitudinal sectional view showing a conventional airtight test terminal structure of a corrugated metal sheath cable. [Description of Signs] 1 Annular rubber packing 2 Metal lid 3 Stopper 4 Convex part 5 Fastening bolt 6 Nut 7 Connector 10 Cable core 11 Metal sheath with cable wave

Claims (1)

【特許請求の範囲】 【請求項1】 波付き金属シースを有する電力ケーブル
の気密試験を実施するための端末構造であって、 前記金属シース端を覆う円板状金属蓋と、この金属蓋と
金属シース端とに密接して装着される環状のゴムパッキ
ングと、前記金属シースの波形状に嵌合し、係止される
凸部を有するストッパーと、前記円板状金属蓋を前記ス
トッパーに締結させる締結ボルトとを備え、 前記円板状金属蓋を前記ストッパーに前記締結ボルトに
よって固定することにより前記ゴムパッキングが圧縮さ
れ、シールするものであることを特徴とする波付き金属
シースケーブルの気密試験端末構造。
Claims 1. A terminal structure for performing an airtightness test of a power cable having a corrugated metal sheath, comprising: a disk-shaped metal cover covering an end of the metal sheath; An annular rubber packing that is mounted in close contact with the end of the metal sheath, a stopper that has a convex portion that fits and locks into the corrugated shape of the metal sheath, and fastens the disc-shaped metal lid to the stopper. An airtightness test of a corrugated metal sheath cable, wherein the rubber packing is compressed and sealed by fixing the disc-shaped metal lid to the stopper with the fastening bolt. Terminal structure.
JP2001280060A 2001-09-14 2001-09-14 Airtightness test terminal structure of corrugated metal sheathed cable Pending JP2003083836A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001280060A JP2003083836A (en) 2001-09-14 2001-09-14 Airtightness test terminal structure of corrugated metal sheathed cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001280060A JP2003083836A (en) 2001-09-14 2001-09-14 Airtightness test terminal structure of corrugated metal sheathed cable

Publications (1)

Publication Number Publication Date
JP2003083836A true JP2003083836A (en) 2003-03-19

Family

ID=19104124

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001280060A Pending JP2003083836A (en) 2001-09-14 2001-09-14 Airtightness test terminal structure of corrugated metal sheathed cable

Country Status (1)

Country Link
JP (1) JP2003083836A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4653254B1 (en) * 2010-07-12 2011-03-16 有限会社大和設備 Drainage pipe leak test equipment
CN107219041A (en) * 2017-07-21 2017-09-29 无锡市曙光电缆有限公司 A kind of extra-high-tension cable protective metal shell air tight test device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51103480A (en) * 1975-02-05 1976-09-13 Smith Industries Ltd
JPS57177151A (en) * 1981-04-24 1982-10-30 Ricoh Co Ltd Electrophotographic receptor
JPS5863539A (en) * 1981-09-23 1983-04-15 ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Device for adjusting constituting member rotatably supported onto upper structure of automobile by means of motor
JPS645147A (en) * 1987-06-29 1989-01-10 Nec Corp Location device for faulty point

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51103480A (en) * 1975-02-05 1976-09-13 Smith Industries Ltd
JPS57177151A (en) * 1981-04-24 1982-10-30 Ricoh Co Ltd Electrophotographic receptor
JPS5863539A (en) * 1981-09-23 1983-04-15 ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Device for adjusting constituting member rotatably supported onto upper structure of automobile by means of motor
JPS645147A (en) * 1987-06-29 1989-01-10 Nec Corp Location device for faulty point

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4653254B1 (en) * 2010-07-12 2011-03-16 有限会社大和設備 Drainage pipe leak test equipment
JP2012021800A (en) * 2010-07-12 2012-02-02 Daiwa Detsubi Kk Leakage testing device of drain pipe
CN107219041A (en) * 2017-07-21 2017-09-29 无锡市曙光电缆有限公司 A kind of extra-high-tension cable protective metal shell air tight test device

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