JPS6248804B2 - - Google Patents
Info
- Publication number
- JPS6248804B2 JPS6248804B2 JP57049206A JP4920682A JPS6248804B2 JP S6248804 B2 JPS6248804 B2 JP S6248804B2 JP 57049206 A JP57049206 A JP 57049206A JP 4920682 A JP4920682 A JP 4920682A JP S6248804 B2 JPS6248804 B2 JP S6248804B2
- Authority
- JP
- Japan
- Prior art keywords
- optical cable
- overhead line
- attached
- overhead
- plastic pipe
- 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
- 230000003287 optical effect Effects 0.000 claims description 30
- 229920003023 plastic Polymers 0.000 claims description 13
- 239000004033 plastic Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000003566 sealing material Substances 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 229920002457 flexible plastic Polymers 0.000 claims description 5
- 229920002050 silicone resin Polymers 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
- G02B6/4422—Heterogeneous cables of the overhead type
-
- 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
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/48—Overhead installation
- G02B6/483—Installation of aerial type
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Description
【発明の詳細な説明】
本発明は、架空地線、架空送電線の如き架空線
に光ケーブルを添わせて締付けるか巻付けた光ケ
ーブル添架架空線から光ケーブルを引下したり鉄
塔からかわす目的で分岐する光ケーブル添架架空
線の分岐部の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides an optical cable attached to an overhead line such as an overhead ground wire or an overhead power transmission line, and the optical cable is attached to an overhead line and is tightened or wrapped. This invention relates to an improvement in the branching section of an overhead optical cable attached to an overhead line.
光ケーブル添架架空線は鉄塔付近で架空線から
光ケーブルを分岐しこの分岐された部分を振動等
で鉄塔に接触して損傷するのを防止することが要
求される。この目的のため、光ケーブルの分岐さ
れた部分をプラスチツクパイプに引込むことが考
えられる。このプラスチツクパイプは架空線に直
接固定すると、架空線の落雷時の熱で変形する欠
点がある。 Optical cable-attached overhead lines are required to branch the optical cable from the overhead line near the steel tower and to prevent this branched portion from coming into contact with the steel tower due to vibration or the like and damaging it. For this purpose, it is conceivable to run the branched part of the optical cable into a plastic pipe. This plastic pipe has the disadvantage that if it is directly fixed to an overhead line, it will deform due to the heat generated by the overhead line when it is struck by lightning.
本発明の目的は、光ケーブルの分岐された部分
を保護し且つ架空線からの熱の影響を受けること
がないようにした光ケーブル添架架空線の分岐部
を提供することにある。 An object of the present invention is to provide a branch section of an overhead line attached to an optical cable that protects the branched section of the optical cable and prevents it from being affected by heat from the overhead line.
本発明の実施例を図面を参照して詳細にのべる
と、第１図は本発明に係る光ケーブル添架架空線
の分岐部１０を示し、この実施例では分岐部１０
は光ケーブル１４が架空線１２から引下される部
分であるのが示してある。光ケーブル１４は、図
示の実施例では架空地線である架空線１２に添わ
せて螺旋状プレフオームロツド１６によつて締付
けられているが、架空線１２に巻付けてもよい。 Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a branch section 10 of an overhead line attached to an optical cable according to the present invention.
2 shows the portion where the optical cable 14 is drawn down from the overhead line 12. In the illustrated embodiment, the optical cable 14 is tightened by a helical preform rod 16 along the overhead line 12, which is an overhead ground wire, but it may also be wrapped around the overhead line 12.
分岐部１０は、鉄塔１８付近で架空線１２から
分岐する光ケーブル１４が引込まれるポリ塩化ビ
ニル又はポリエチレンの如き熱可塑性樹脂から成
る可撓性プラスチツクパイプ２０を備え、このプ
ラスチツクパイプは鉄塔１８に沿つて引下され固
定具２２によつて鉄塔に固定されている。プラス
チツクパイプ２０の引込口付近の端部は架空線１
２に沿つて延びており、この架空線１２に沿う部
分はその先端部２０ａを除いてシリコン樹脂の如
き耐熱性接着性保護材２４で被覆されていてこの
保護材２４を介して金属線２６で架空線１２にバ
インドして固定される。従つて、架空線１２に落
雷があつて発熱してもプラスチツクパイプ２０は
熱変形することがない。尚、この種の耐熱性接着
性保護材２４は硬化に時間がかかるので予め工場
においてプラスチツクパイプ２０の外周に接着さ
せておくことが望ましい。また、シリコン樹脂は
−55〜250℃の範囲の温度に耐えられるので耐寒
性にもすぐれているので好ましい。また、プラス
チツクパイプ２０の先端部２０ａから光ケーブル
１４の外周にかけては、プラスチツクパイプ２０
内に引込口から水が入るのを防止するため、防水
シール材２８が被覆されている。この防水シール
材２８は自己融着性テープを巻付けて形成しても
よいし、パテを塗着し硬化させて形成してもよ
い。第１図から判るように、防水シール材２８は
保護材２４の外径より小さい外径を有する。この
ようにすると、防水シール材２８は架空線１２に
接触することがないため耐熱性が要求されないの
で好ましい。防水シール材２８はプラスチツクパ
イプ２０の口元で光ケーブル１４とプラスチツク
パイプ２０とのガタツキをなくすのにも有効であ
る。 The branching section 10 includes a flexible plastic pipe 20 made of thermoplastic resin such as polyvinyl chloride or polyethylene into which the optical cable 14 branching from the overhead line 12 is drawn near the steel tower 18. It is then pulled down and fixed to the steel tower by a fixture 22. The end of the plastic pipe 20 near the inlet is connected to the overhead wire 1.
2, and the part along this overhead wire 12, except for its tip 20a, is covered with a heat-resistant adhesive protective material 24 such as silicone resin, and a metal wire 26 is applied through this protective material 24. It is bound and fixed to the overhead wire 12. Therefore, even if the overhead line 12 is struck by lightning and generates heat, the plastic pipe 20 will not be thermally deformed. Since this type of heat-resistant adhesive protective material 24 takes time to harden, it is desirable to adhere it to the outer periphery of the plastic pipe 20 in advance at a factory. Further, silicone resin is preferable because it can withstand temperatures in the range of -55 to 250°C and has excellent cold resistance. Furthermore, from the tip 20a of the plastic pipe 20 to the outer periphery of the optical cable 14, the plastic pipe 20
A waterproof sealing material 28 is coated to prevent water from entering the interior through the inlet. This waterproof sealing material 28 may be formed by wrapping a self-adhesive tape, or may be formed by applying putty and curing it. As can be seen from FIG. 1, the waterproof sealing material 28 has an outer diameter smaller than the outer diameter of the protective material 24. This is preferable because the waterproof sealing material 28 does not come into contact with the overhead wire 12 and is not required to have heat resistance. The waterproof sealing material 28 is also effective in eliminating rattling between the optical cable 14 and the plastic pipe 20 at the mouth of the plastic pipe 20.
第２図は本発明の他の実施例を示し、この実施
例では分岐部１０が光ケーブル１４の引下し部分
ではなく鉄塔１８付近でこの鉄塔をかわすように
分岐する部分であることを除いて前の実施例と実
質的に同じである。この実施例では光ケーブル１
４の鉄塔をかわす部分が可撓性プラスチツクパイ
プ２０に引込まれ、このプラスチツクパイプ２０
の両端が前の実施例と同様に耐熱性接着性保護材
２４を介して架空線１２に固定されている。尚、
第１図と同じ部分は同じ符号が付してある。 FIG. 2 shows another embodiment of the present invention, except that in this embodiment, the branching part 10 is not the part where the optical cable 14 is pulled down, but is a part that branches near the steel tower 18 so as to avoid this steel tower. Substantially the same as the previous embodiment. In this embodiment, optical cable 1
4 is drawn into a flexible plastic pipe 20, and this plastic pipe 20
Both ends of the cable are fixed to the overhead wire 12 via a heat-resistant adhesive protective material 24 as in the previous embodiment. still,
The same parts as in FIG. 1 are given the same reference numerals.
上記２つの実施例では光ケーブル１４が架空地
線に添架してあるが、架空送電線に添架してもよ
いことはもちろんである。 In the above two embodiments, the optical cable 14 is attached to the overhead ground wire, but it goes without saying that it may be attached to the overhead power transmission line.
本発明によれば、上記のように、光ケーブルが
鉄塔付近で架空線から分岐される部分が可撓性プ
ラスチツクパイプに引込まれて保護され、このプ
ラスチツクパイプの端部は直接ではなく耐熱性保
護材を介して架空線に固定されるので架空線から
熱変形を受けることがなく光ケーブルを安全に分
岐することができる。 According to the present invention, as described above, the part where the optical cable branches from the overhead line near the steel tower is drawn into and protected by a flexible plastic pipe, and the end of this plastic pipe is not directly covered with a heat-resistant protective material. Since it is fixed to the overhead line via the cable, the optical cable can be safely branched without being thermally deformed by the overhead line.
第１図及び第２図は本発明に係る光ケーブル添
架架空線の分岐部の２つの実施例の概略図であ
る。
１０……分岐部、１２……架空線、１４……光
ケーブル、１６……プレフオームロツド、１８…
…鉄塔、２０……可撓性プラスチツクパイプ、２
０ａ……先端、２４……耐熱性接着性保護材、２
６……金属線。
FIGS. 1 and 2 are schematic diagrams of two embodiments of a branch section of an overhead line attached to an optical cable according to the present invention. 10... Branch, 12... Overhead line, 14... Optical cable, 16... Preform rod, 18...
... Steel tower, 20 ... Flexible plastic pipe, 2
0a...Tip, 24...Heat-resistant adhesive protective material, 2
6...Metal wire.
Claims (1)
付けた光ケーブル添架架空線の前記架空線から前
記光ケーブルを鉄塔付近で分岐する光ケーブル添
架架空線の分岐部において、前記光ケーブルの分
岐された部分が引込まれた可撓性プラスチツクパ
イプを備え、前記プラスチツクパイプの端部は耐
熱性接着性保護材を介して前記架空線に固定され
ていることを特徴とする光ケーブル添架架空線の
分岐部。 ２ 前記プラスチツクパイプの先端から前記光ケ
ーブルにかけては前記保護材の外径より小さい外
径の防水シール材が被覆されている特許請求の範
囲第１項に記載の光ケーブル添架架空線の分岐
部。 ３ 前記保護材はシリコン樹脂である特許請求の
範囲第１項又は第２項に記載の光ケーブル添架架
空線の分岐部。[Scope of Claims] 1. At the branching point of the optical cable-attached overhead line where the optical cable is branched from the overhead line of the optical cable-attached overhead line, which is attached to the overhead line and tightened or wrapped, the optical cable is branched near the steel tower. A branch of an overhead line attached to an optical cable, characterized in that a flexible plastic pipe is provided with a drawn-in portion, and an end of the plastic pipe is fixed to the overhead line via a heat-resistant adhesive protective material. Department. 2. The branch portion of an overhead line attached to an optical cable according to claim 1, wherein a portion from the tip of the plastic pipe to the optical cable is coated with a waterproof sealing material having an outer diameter smaller than the outer diameter of the protective material. 3. The branch portion of an overhead optical cable attached to an optical cable according to claim 1 or 2, wherein the protective material is a silicone resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57049206A JPS58168005A (en) | 1982-03-29 | 1982-03-29 | Branch part of aerial wire with joint use optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57049206A JPS58168005A (en) | 1982-03-29 | 1982-03-29 | Branch part of aerial wire with joint use optical cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58168005A JPS58168005A (en) | 1983-10-04 |
| JPS6248804B2 true JPS6248804B2 (en) | 1987-10-15 |
Family
ID=12824504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57049206A Granted JPS58168005A (en) | 1982-03-29 | 1982-03-29 | Branch part of aerial wire with joint use optical cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58168005A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61230103A (en) * | 1985-04-03 | 1986-10-14 | Electric Power Dev Co Ltd | Method for winding optical cable around aerial wire |
| JPS62158402U (en) * | 1986-03-31 | 1987-10-08 | ||
| DE19917335A1 (en) * | 1999-04-16 | 2000-10-19 | Siemens Ag | Method for continuously fixing coiled fixture elements to cable e.g. optical cable, to be attached to bearer |
| DE19922183A1 (en) * | 1999-05-12 | 2000-11-23 | Siemens Ag | High voltage transmission line has a support element made of a dielectric rod and two angled guide pipes |
-
1982
- 1982-03-29 JP JP57049206A patent/JPS58168005A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58168005A (en) | 1983-10-04 |
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