JPH0423484B2 - - Google Patents
Info
- Publication number
- JPH0423484B2 JPH0423484B2 JP62263724A JP26372487A JPH0423484B2 JP H0423484 B2 JPH0423484 B2 JP H0423484B2 JP 62263724 A JP62263724 A JP 62263724A JP 26372487 A JP26372487 A JP 26372487A JP H0423484 B2 JPH0423484 B2 JP H0423484B2
- Authority
- JP
- Japan
- Prior art keywords
- cable
- split
- weight
- conduit
- cables
- 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
- 239000000314 lubricant Substances 0.000 claims description 7
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical group CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004200 microcrystalline wax Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4459—Ducts; Conduits; Hollow tubes for air blown fibres
Description
（産業上の利用分野）
この発明は、通信ケーブル、光ケーブル、電力
ケーブル等を収容するケーブル収納用分割管路に
関するもので、その布設張力を軽減しようとする
ものである。
（従来の技術）
通信ケーブル、光ケーブル、電力ケーブルなど
を布設するときに、図面に示すように管路１内に
数条の分割管路２を配設し、その中にケーブル３
を布設することが行われている。この分割管路２
を採用するやり方は管路１の内径に比較してケー
ブルのそれが細い場合に管路１の有効利用という
観点から特に効果的である。
（この発明が解決しようとする問題点）
しかしながら、分割管路２の素材として一般に
ポリエチレンのようなプラスチツクを用いている
ために分割管路２内へのケーブル布設時のケーブ
ルとの摩擦係数が0.5〜0.6と比較的大きいことか
ら布設張力が大きくなりプーリングアイのケーブ
ル把持力から最長でも300ｍ程度しかケーブルを
布設することができない。
（問題点を解決するための手段）
この発明は、以上の観点から分割管路を構成す
るプラスチツク内に滑剤を混入することにより、
その摩擦係数を低減せしめ、以つてその中へのケ
ーブルの布設を容易にしたものである。
なお、上記滑剤としてはエルシルアミドが好ま
しく、その量はプラスチツク100重量部に対し0.5
〜1.0重量部が適当である。
（実施例）
分割管路を構成するプラスチツクとしてポリエ
チレンを用い、その中に４種類の滑剤すなわち
ａ：エルシルアミド、ｂ：ステアリン酸、ｃ：ポ
リエチレンワツクス、ｄ：マイクロワツクスを添
加量（重量部）を変えて混入させて直径36mmの分
割管路を作り、その中に直径22mmのポリエチレン
シースされた光フアイバケーブルを引入れたとき
の摩擦係数を測定したところ下表のごとくであつ
た。
(Industrial Field of Application) The present invention relates to a cable storage split conduit for accommodating communication cables, optical cables, power cables, etc., and is intended to reduce the installation tension thereof. (Prior art) When installing communication cables, optical cables, power cables, etc., several divided conduit lines 2 are arranged within a conduit line 1 as shown in the drawing, and cables 3
is being installed. This split pipe 2
This method is particularly effective in terms of effective use of the conduit 1 when the cable is thinner than the inner diameter of the conduit 1. (Problems to be Solved by the Invention) However, since plastic such as polyethylene is generally used as the material for the split pipe line 2, the coefficient of friction with the cable when the cable is laid inside the split pipe line 2 is 0.5. Since it is relatively large at ~0.6, the installation tension becomes large, and the cable can only be installed for a maximum of about 300 m due to the cable gripping force of the pulling eye. (Means for Solving the Problems) From the above point of view, the present invention provides the following advantages:
This reduces the coefficient of friction and facilitates the installation of cables therein. The lubricant is preferably erucylamide, and the amount thereof is 0.5 parts by weight per 100 parts by weight of the plastic.
~1.0 part by weight is suitable. (Example) Polyethylene was used as the plastic constituting the split pipe line, and four types of lubricants were added thereto (a: erucylamide, b: stearic acid, c: polyethylene wax, d: microwax) in the amounts (parts by weight). ) were mixed to create a split conduit with a diameter of 36 mm, and when a polyethylene-sheathed optical fiber cable with a diameter of 22 mm was drawn into the pipe, the coefficient of friction was measured, and the results were as shown in the table below.
【表】
表から明らかなように、滑剤としてエルシルア
ミドを0.5重量部以上添加したものは、ケーブル
との摩擦も小さく効果的であることがわかる。
また、その量は1.0重量部以上では摩擦係数に
差異がないことから多くても1.0重量部添加すれ
ばよい。かくして滑剤としてエルシルアミドを
1.0重量部添加したポリエチレンからなる分割管
路を採用することによりケーブルの布設条長を約
600ｍになすことができた。
（この発明の効果）
この発明は以上のように、分割管路を構成する
プラスチツク内に滑剤を添加することによりケー
ブルとの摩擦を少くしたので、その内部へのケー
ブルの引入れを容易にすることができるという利
点がある。[Table] As is clear from the table, it can be seen that those containing 0.5 parts by weight or more of erucylamide as a lubricant are effective because the friction with the cable is small. Further, since there is no difference in the coefficient of friction when the amount is 1.0 part by weight or more, it is sufficient to add at most 1.0 part by weight. Thus, using erucylamide as a lubricant
By using split pipes made of polyethylene with 1.0 parts by weight added, the cable installation length can be reduced to approx.
I was able to do it at 600m. (Effects of the Invention) As described above, this invention reduces the friction with the cable by adding a lubricant to the plastic constituting the split pipe, making it easier to draw the cable into the pipe. It has the advantage of being able to
図面は、本発明の分割管路の例の断面図であ
る。
図において、２：分割管路、３：ケーブル。
The drawing is a cross-sectional view of an example of a split conduit of the present invention. In the figure, 2: split pipe, 3: cable.
Claims (1)
を特徴とするケーブル収納用分割管路。 ２ 滑剤がエルシルアミドであることを特徴とす
る特許請求の範囲第１項記載のケーブル収納用分
割管路。[Claims] 1. A split conduit for storing cables, characterized in that it is made of plastic to which a lubricant is added. 2. The split conduit for storing cables according to claim 1, wherein the lubricant is erucylamide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62263724A JPH01110013A (en) | 1987-10-21 | 1987-10-21 | Dividing conduit line for housing cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62263724A JPH01110013A (en) | 1987-10-21 | 1987-10-21 | Dividing conduit line for housing cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01110013A JPH01110013A (en) | 1989-04-26 |
| JPH0423484B2 true JPH0423484B2 (en) | 1992-04-22 |
Family
ID=17393425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62263724A Granted JPH01110013A (en) | 1987-10-21 | 1987-10-21 | Dividing conduit line for housing cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01110013A (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004343982A (en) * | 2003-03-20 | 2004-12-02 | Airec Engineering Corp | Method for rehabilitating pipe line and pipe line rehabilitation structure |
| US20060065428A1 (en) * | 2004-07-13 | 2006-03-30 | Kummer Randy D | Electrical cable having a surface with reduced coefficient of friction |
| JP4540430B2 (en) * | 2004-09-03 | 2010-09-08 | 芦森工業株式会社 | Pipelined lining method |
| US10763008B2 (en) | 2004-09-28 | 2020-09-01 | Southwire Company, Llc | Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force |
| US7749024B2 (en) | 2004-09-28 | 2010-07-06 | Southwire Company | Method of manufacturing THHN electrical cable, and resulting product, with reduced required installation pulling force |
| US8800967B2 (en) | 2009-03-23 | 2014-08-12 | Southwire Company, Llc | Integrated systems facilitating wire and cable installations |
| US9802785B2 (en) | 2008-01-21 | 2017-10-31 | Southwire Company, Llc | Systems and methods for facilitating wire and cable installations |
| US10003179B2 (en) | 2008-01-21 | 2018-06-19 | Southwire Company, Llc | Integrated systems facilitating wire and cable installations |
| US8986586B2 (en) | 2009-03-18 | 2015-03-24 | Southwire Company, Llc | Electrical cable having crosslinked insulation with internal pulling lubricant |
| US8658576B1 (en) | 2009-10-21 | 2014-02-25 | Encore Wire Corporation | System, composition and method of application of same for reducing the coefficient of friction and required pulling force during installation of wire or cable |
| US10325696B2 (en) | 2010-06-02 | 2019-06-18 | Southwire Company, Llc | Flexible cable with structurally enhanced conductors |
| US9027908B1 (en) | 2011-09-01 | 2015-05-12 | Southwire Company, Llc | Field-installable pulling eye |
| US9352371B1 (en) | 2012-02-13 | 2016-05-31 | Encore Wire Corporation | Method of manufacture of electrical wire and cable having a reduced coefficient of friction and required pulling force |
| US11328843B1 (en) | 2012-09-10 | 2022-05-10 | Encore Wire Corporation | Method of manufacture of electrical wire and cable having a reduced coefficient of friction and required pulling force |
| US10056742B1 (en) | 2013-03-15 | 2018-08-21 | Encore Wire Corporation | System, method and apparatus for spray-on application of a wire pulling lubricant |
| US10431350B1 (en) | 2015-02-12 | 2019-10-01 | Southwire Company, Llc | Non-circular electrical cable having a reduced pulling force |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5825005A (en) * | 1981-08-06 | 1983-02-15 | 中央発條株式会社 | Control cable |
| JPS59104607A (en) * | 1982-11-08 | 1984-06-16 | ブリティシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニ | Method and apparatus for installing optical fiber cable |
| JPS6039013B2 (en) * | 1976-11-18 | 1985-09-04 | テトラ・パツク・インタ−ナシヨナル・アクチ−ボラグ | Method for obtaining an opening device with good pouring properties for packaging containers |
| JPS61109B2 (en) * | 1974-10-02 | 1986-01-06 | Kendall & Co |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6039013U (en) * | 1983-08-22 | 1985-03-18 | 三菱電線工業株式会社 | cable line |
| JPS61109U (en) * | 1984-06-07 | 1986-01-06 | 住友電気工業株式会社 | Lou tube core wire |
-
1987
- 1987-10-21 JP JP62263724A patent/JPH01110013A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61109B2 (en) * | 1974-10-02 | 1986-01-06 | Kendall & Co | |
| JPS6039013B2 (en) * | 1976-11-18 | 1985-09-04 | テトラ・パツク・インタ−ナシヨナル・アクチ−ボラグ | Method for obtaining an opening device with good pouring properties for packaging containers |
| JPS5825005A (en) * | 1981-08-06 | 1983-02-15 | 中央発條株式会社 | Control cable |
| JPS59104607A (en) * | 1982-11-08 | 1984-06-16 | ブリティシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニ | Method and apparatus for installing optical fiber cable |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01110013A (en) | 1989-04-26 |
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