JPS63149612A - Composite overhead ground-wire consisting of optical fiber - Google Patents
Composite overhead ground-wire consisting of optical fiberInfo
- Publication number
- JPS63149612A JPS63149612A JP61297228A JP29722886A JPS63149612A JP S63149612 A JPS63149612 A JP S63149612A JP 61297228 A JP61297228 A JP 61297228A JP 29722886 A JP29722886 A JP 29722886A JP S63149612 A JPS63149612 A JP S63149612A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- outer periphery
- silicone resin
- wire
- hardness
- 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
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 43
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 229920002050 silicone resin Polymers 0.000 claims abstract description 20
- 125000006850 spacer group Chemical group 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000007551 Shore hardness test Methods 0.000 claims abstract description 4
- 239000003365 glass fiber Substances 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010998 test method Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007259 addition reaction Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-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
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は架空送電線の系統保護、制御、監視などを正確
かつ高精度に行うことを目的として送電線鉄塔の頂部に
架線される架空地線に光ファイバを収納した構造の複合
架空地線に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an overhead transmission line installed at the top of a transmission line tower for the purpose of accurately and precisely performing system protection, control, monitoring, etc. of overhead power transmission lines. This invention relates to a composite overhead ground wire with a structure in which an optical fiber is housed in the wire.
第１図に従来の光ファイバ複合架空地線（以下複合架空
地線という。）の断面構造の概要を示す。複合架空地線
の中央部にスペーサｌが設けられ、スペーサｌの外周に
はらせん状の溝２が刻設されており、溝２に光ファイバ
素線３がルーズに収納されている。さらにスペ〜すｌは
アルミ製の保護管４に収納されて光ファイバユニットを
形成している。光ファイバユニットの外周には、さらに
アルミニウム被覆鋼線５が撚合されて巻積されている。FIG. 1 shows an outline of the cross-sectional structure of a conventional optical fiber composite overhead ground wire (hereinafter referred to as composite overhead ground wire). A spacer 1 is provided at the center of the composite overhead ground wire, and a spiral groove 2 is cut on the outer periphery of the spacer 1, and an optical fiber 3 is loosely housed in the groove 2. Further, the spacer 1 is housed in an aluminum protective tube 4 to form an optical fiber unit. Further, aluminum-coated steel wires 5 are twisted and wound around the outer periphery of the optical fiber unit.
この種の構造の光ファイバ複合架空地線は、光ファイバ
３がスペーサ１に収納され、かつ光ファイバユニット全
体が保護管４に収納されていることから、機械的強度に
優れる利点がある。The optical fiber composite overhead ground wire having this type of structure has the advantage of excellent mechanical strength because the optical fiber 3 is housed in the spacer 1 and the entire optical fiber unit is housed in the protective tube 4.
またこの種の複合架空地線に使用する光ファイバ素線３
は、第２図に断面構造を示すように、光ファイバ（コア
／クラッド）６の外周にプライマリコート７およびバッ
ファコート８の被覆を施してあり、プライマリコート７
およびバッファコート８は通常一般に付加反応型のシリ
コン樹脂により形成される。Also, the optical fiber strand 3 used for this type of composite overhead ground wire
As shown in FIG. 2, the outer periphery of an optical fiber (core/cladding) 6 is coated with a primary coat 7 and a buffer coat 8.
The buffer coat 8 is generally formed from an addition reaction type silicone resin.
従来の被覆材として用いる付加反応型のシリコン樹脂は
、プライマリコート７用としては石英の屈折率より高い
屈折率を有するシリコンを、またパンコアコート８用と
しては外力により発生するマイクロベンドを防止するた
めのクノンヨン効果のある低ヤング率の材料が適用され
ている。そのため、従来の被覆材は、 ＡＳＴＭ Ｄ
２２４０に規定するショア硬さ試験法ではショア硬さの
測定がてきず、ＪＩＳ Ｋ ６３０１に規定する試験法
で測定した時ＪＩＳ Ａ ２０〜４０の程度となってい
る。Addition-reaction silicone resins used as conventional coating materials include silicone with a refractive index higher than that of quartz for primary coat 7, and silicone for pancore coat 8 to prevent microbending caused by external forces. Low Young's modulus materials with Knon Yong effect have been applied for this purpose. Therefore, conventional dressings meet ASTM D
Shore hardness cannot be measured using the Shore hardness test method specified in JIS K 6301, and the Shore hardness is in the range of JIS A 20 to 40 when measured using the test method specified in JIS K 6301.
従来のこの種の複合架空地線は、光ファイバ素線の被覆
材の硬度が低いことから次のような問題があった。Conventional composite overhead ground wires of this type have the following problems due to the low hardness of the coating material of the optical fiber wire.
■ シリコン樹脂を被覆した光ファイバ素線を複数本直
接集合しているのである程度の粘着性を有するシリコン
樹脂が相互に密着し複合架空地線を形成しているケーブ
ルの接続作業性が悪い。(2) Since a plurality of optical fiber wires coated with silicone resin are directly assembled, the silicone resin, which has a certain degree of adhesiveness, adheres to each other and forms a composite overhead ground wire.The cable connection workability is poor.
■ 製造過程においても、光ファイバ素線の集合工程に
際し光ファイバ素線が互いに密着し、光ファイバ素線の
もつれなどにより光ファイバに引張力や曲げが作用し、
伝送特性が悪化したり、時には断線または集合配列の乱
れが生じる。■ During the manufacturing process, the optical fibers come into close contact with each other during the assembly process, and tensile force and bending are applied to the optical fibers due to entanglement of the optical fibers.
Transmission characteristics may deteriorate, and sometimes wire breaks or aggregate arrangement may be disrupted.
本発明は従来の問題点を解決するため、この種の光ファ
イバ複合架空地線において、光ファイバ素線を形成する
ガラスファイバの外周に施す被覆材の最外層のシリコン
樹脂はｔ’ｊ３ＴＭ Ｄ ２２４０に規定するショア硬
さ試験法により測定したンヨアＤ７０以下でかつＪＩＳ
Ｋ ６３０１に規定する硬度がＪＩＳ Ａ ８０以上
の硬さ特性を有していることを特徴とする。In order to solve the problems of the prior art, the present invention is directed to this type of optical fiber composite overhead ground wire. Hardness D70 or less measured by the Shore hardness test method specified in
It is characterized by having a hardness characteristic of JIS A 80 or higher as defined in K 6301.
本発明の光ファイバ複合架空地線は、光ファイバ素線の
最外層の被覆シリコン樹脂の硬さ特性をＡＳＴＭ Ｄ
２２４０に規定する／ヨア硬さ試験法により測定したシ
ョアＤ７０ 以下でかつＪＩＳＫ ６３０１に規定する
硬度がＪＩＳ Ａ ８０以上の高硬質とすることにより
、測圧などの外圧に対する抵抗力の向上とともに、製造
上の安定化がはかれる。以下実施例について説明する。The optical fiber composite overhead ground wire of the present invention has hardness characteristics of the coating silicone resin of the outermost layer of the optical fiber wire according to ASTM D.
2240 / Shore D70 or less measured by the Yoar hardness test method, and the hardness specified in JISK 6301 is JIS A 80 or higher, which improves resistance to external pressure such as pressure measurement and improves manufacturing performance. The above is stabilized. Examples will be described below.
光ファイバ素線の最外層としてのハンファコート用のシ
リコン樹脂の硬さがＡＳＴＭ Ｄ ２２４０によって測
定した硬度がショアＤ８０、ショアＤ７０、ショアＤ４
０のもの、及びＪＩＳ Ｋ ６３０１による硬度ＪＩＳ
Ａ ８０のものを使用した光ファイバ素線試料屋１〜
４の４種を作製した。また比較のため従来のシリコン樹
脂被覆の光ファイバ素線試料洗５および６を選定し、
ＪＩＳ Ｋ ６３０１に準じて測定した硬度がそれぞれ
試料ｉｒａ ５はＪＩＳ Ａ ６０、試料扁６はＪＩＳ
Ａ ４０の袋さであった。これらそれぞれの試料につ
いて外観、粘着性（ｑｒ）および断線回数について測定
した結果を次表に示す。The hardness of the silicone resin for Hanwha coat, which is the outermost layer of the optical fiber, is Shore D80, Shore D70, Shore D4, as measured by ASTM D 2240.
0 and hardness according to JIS K 6301
Optical fiber sample shop 1 using A80
4 types were produced. For comparison, we selected conventional silicone resin coated optical fiber sample washes 5 and 6.
The hardness measured according to JIS K 6301 is JIS A 60 for sample ira 5 and JIS A 60 for sample ira 6.
The size of the bag was A40. The following table shows the results of measuring the appearance, adhesion (qr), and number of disconnections for each of these samples.
表で外観とは、径１８０μｍφのプライマリコートを被
覆されたガラスファイバに、バッファコート用シリコン
を４００μｍφの径にコーテンイグしたときの光ファイ
バ素線の外観である。In the table, the appearance refers to the appearance of an optical fiber when a glass fiber coated with a primary coat having a diameter of 180 μmφ is coated with buffer coat silicon to a diameter of 400 μmφ.
粘着性は、第３図に示す試験方法により測定した結果で
ある。すなわちバッファ用のシリコン樹脂を硬化させた
長さ３０耀、幅３０咽、厚さ１頭のシート試料１１を、
固定した鉄板ｌＯ上に載置し、その上にガラスプレート
９を介して重り１２を荷重し、３０秒経過後にシート試
料１１の剥離力を固定した結果である。The tackiness is the result measured by the test method shown in FIG. In other words, a sheet sample 11 with a length of 30 mm, a width of 30 mm, and a thickness of 1 mm made of hardened silicone resin for buffering was prepared.
The sheet sample 11 was placed on a fixed iron plate IO, a weight 12 was loaded thereon via the glass plate 9, and the peeling force of the sheet sample 11 was fixed after 30 seconds had elapsed.
断線回数は、光ファイバ素線試料屋１〜６のそれぞれに
ついて、３心づつ供給し、延べｌ０ＫＩ＋集合したとき
にバッファコートのシリコン樹脂相互が密着してもつれ
を生じ、光フテイバ素線のガラスファイバに断線を生じ
た回数である。The number of breaks is determined by supplying 3 fibers to each of the optical fiber sample shops 1 to 6, and when they are assembled, the silicone resin of the buffer coat sticks to each other and becomes tangled, causing the glass fiber of the optical fiber sample shop to This is the number of times that a wire break occurred.
実施例からも解るとおり、従来の光ファイバ素線のバッ
ファコート用シリコン樹脂は、ＪＩＳ’Ａ ６０以下の
硬さ特性のため、光ファイバ素線集金時の断線の発生が
避けられなかった。これに対し本発明によるＪＩＳ Ａ
８０以上の硬さ特性を有するシリコン樹脂は粘着性が
改善され良好な結果を示している。ただし硬度が大に過
ぎるとコーテイング性が劣り、光ファイ／イ素線の外観
が悪化し、外観の凹凸の影響により断線が発生した。し
たがってシリコン樹脂の硬さはショアＤ７０以下が好ま
しい。As can be seen from the examples, the conventional silicone resin for buffer coating of optical fibers has a hardness of JIS'A 60 or less, so the occurrence of wire breakage during collection of optical fibers was unavoidable. In contrast, JIS A according to the present invention
Silicone resins with hardness characteristics of 80 or higher have improved adhesion and have shown good results. However, if the hardness is too high, the coating properties will be poor, the appearance of the optical fiber/electronic wire will deteriorate, and wire breakage will occur due to the unevenness of the appearance. Therefore, the hardness of the silicone resin is preferably Shore D70 or less.
以上述べたように本発明によれば、シリコン樹脂相互は
密着することなく、ケーブルの接続作業性が改善され、
製造工程における光ファイバ素線集合に際し、光ファイ
バ素線の相互の接着によるもつれもなく、したがって引
張力や曲げなどによる測圧などの外圧の影響も防止でき
、伝送特性の悪化もなく、かつ断線または集合配列の乱
れも防止でき、効果が顕著である。As described above, according to the present invention, the silicone resins do not come into close contact with each other, and the cable connection workability is improved.
When assembling optical fiber strands in the manufacturing process, there is no tangle due to mutual adhesion of the optical fiber strands, and therefore the influence of external pressure such as pressure measurement due to tension or bending can be prevented, there is no deterioration of transmission characteristics, and there is no disconnection. Moreover, disorder of the set arrangement can also be prevented, and the effect is remarkable.
第１図は光ファイバ複合架空地線の断面構造、第２図は
光ファイバ素線の断面構造、第３図は粘着性試験方法説
明図である。
１・・・スペーサ、２・・・らせん状溝、３・・・光フ
ァイバ素線、４・・・保護管、５・・・アルミニウム被
覆鋼線、６・・・光ファイバ、７・・・プライマリコー
ト、８・・・バッファコート、９・・・ガラスプレート
、１０・・・鉄板、１１・・・シリコンシート試料、１
２・・・重り光ファイバ複合架空地線の断面構造
第１図
第 ２ 図 粘着性試験方法説明図第
３図FIG. 1 is a cross-sectional structure of an optical fiber composite overhead ground wire, FIG. 2 is a cross-sectional structure of an optical fiber bare wire, and FIG. 3 is an explanatory diagram of an adhesion test method. DESCRIPTION OF SYMBOLS 1... Spacer, 2... Spiral groove, 3... Optical fiber wire, 4... Protection tube, 5... Aluminum coated steel wire, 6... Optical fiber, 7... Primary coat, 8...Buffer coat, 9...Glass plate, 10...Iron plate, 11...Silicon sheet sample, 1
2... Cross-sectional structure of weighted optical fiber composite overhead ground wire Figure 1 Figure 2 Explanation of adhesion test method Figure 3
Claims (1)
ペーサの外周に保護管を配して形成した光ファイバユニ
ットの外周に導体撚線を巻積してなる光ファイバ複合架
空地線において、前記光ファイバ素線は、 ガラスファイバの外周にシリコン樹脂による被覆を施し
てなり、 前記被覆を形成するシリコン樹脂の内、最外層を形成す
るシリコン樹脂は、 ＡＳＴＭ Ｄ ２２４０に規定するショア硬さ試験法に
より測定したショアＤ７０以下でかつＪＩＳ Ｋ６３０
１に規定する硬度がＪＩＳ Ａ ８０以上の硬さ特性を
有してることを特徴とする光ファイバ複合架空地線。[Claims] An optical fiber formed by winding conductor strands around the outer periphery of an optical fiber unit formed by arranging a protective tube around the outer periphery of a grooved spacer in which an optical fiber wire is housed in the groove of the grooved spacer. In the fiber composite overhead ground wire, the optical fiber wire is formed by coating the outer periphery of a glass fiber with a silicone resin, and among the silicone resins forming the coating, the silicone resin forming the outermost layer conforms to ASTM D 2240. Shore D70 or less measured by the Shore hardness test method specified in , and JIS K630
1. An optical fiber composite overhead ground wire characterized in that the hardness specified in Item 1 is JIS A 80 or higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61297228A JPS63149612A (en) | 1986-12-12 | 1986-12-12 | Composite overhead ground-wire consisting of optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61297228A JPS63149612A (en) | 1986-12-12 | 1986-12-12 | Composite overhead ground-wire consisting of optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63149612A true JPS63149612A (en) | 1988-06-22 |
Family
ID=17843824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61297228A Pending JPS63149612A (en) | 1986-12-12 | 1986-12-12 | Composite overhead ground-wire consisting of optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63149612A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02153308A (en) * | 1988-08-29 | 1990-06-13 | Nippon Sheet Glass Co Ltd | Optical fiber |
| US4952012A (en) * | 1988-11-17 | 1990-08-28 | Stamnitz Timothy C | Electro-opto-mechanical cable for fiber optic transmission systems |
-
1986
- 1986-12-12 JP JP61297228A patent/JPS63149612A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02153308A (en) * | 1988-08-29 | 1990-06-13 | Nippon Sheet Glass Co Ltd | Optical fiber |
| US4952012A (en) * | 1988-11-17 | 1990-08-28 | Stamnitz Timothy C | Electro-opto-mechanical cable for fiber optic transmission systems |
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