JP2677868B2 - Overhead transmission line - Google Patents
Overhead transmission lineInfo
- Publication number
- JP2677868B2 JP2677868B2 JP1159620A JP15962089A JP2677868B2 JP 2677868 B2 JP2677868 B2 JP 2677868B2 JP 1159620 A JP1159620 A JP 1159620A JP 15962089 A JP15962089 A JP 15962089A JP 2677868 B2 JP2677868 B2 JP 2677868B2
- Authority
- JP
- Japan
- Prior art keywords
- transmission line
- optical transmission
- overhead
- ground wire
- optical fiber
- 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 - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
Landscapes
- Communication Cables (AREA)
Description
【発明の詳細な説明】 本発明は、架空地線に光伝送線を複合した架空送電線
路に関するものである。Description: TECHNICAL FIELD The present invention relates to an overhead power transmission line in which an optical transmission line is combined with an overhead ground wire.
架空送電線路を利用して光通信を行うため、架空地線
に内蔵または巻付け等の手段により光伝送線を複合した
架空送電線路が実用化されている。Since optical communication is performed using an overhead power transmission line, an overhead power transmission line in which an optical transmission line is combined by a means such as built-in or winding around an overhead ground line has been put into practical use.
架空地線は、地絡電流および誘導電流が流れて温度が
上昇することが知られている。従来このような温度上昇
は、全ルートにわたって一様であると考えられていたた
め、複合する光伝送線はその温度に耐え得るものにする
べく、架空地線の最高温度を想定し、それに耐え得る光
伝送線を選定して、全ルートにわたって同じ光伝送線を
使用していた。It is known that an overhead ground wire is heated by a ground fault current and an induced current, and its temperature rises. Conventionally, such temperature rise was considered to be uniform over the entire route, so that the composite optical transmission line should be able to withstand that temperature by assuming the maximum temperature of the overhead ground wire. The optical transmission line was selected and the same optical transmission line was used for all routes.
光伝送線は一般に所要本数の光ファイバ素線とそれを
保護する外被とから構成されるが、架空地線の最高温度
に耐え得る光伝送線を構成するため従来は、光ファイバ
素線として耐熱性の高いシリコン樹脂被覆光ファイバ素
線が用いられている。しかしシリコン樹脂被覆光ファイ
バ素線を用いた光伝送線は高価であり、これを全ルート
に使用すると、コスト高になる欠点があった。An optical transmission line is generally composed of a required number of optical fiber strands and an outer cover that protects the optical fiber strands.In the past, however, the optical transmission line was constructed as an optical fiber strand to withstand the maximum temperature of the overhead ground wire. A silicon resin-coated optical fiber strand having high heat resistance is used. However, the optical transmission line using the silicon resin-coated optical fiber element is expensive, and if this is used for all routes, there is a drawback that the cost becomes high.
〔課題の解決手段とその作用〕 本願発明者等は、地絡事故時等に架空地線に流れる地
絡電流の大きさは、全ルートにわたって一様でないこと
を検知し、本発明を完成するに至った。例えば変電所と
負荷を結ぶ架空送電線路では、変電所に近い区間で最も
大きく、中間区間あるいは負荷に近い区間ではそれより
小さくなる。また変電所と変電所を結ぶ架空電送線路で
は、両端の変電所に近い区間で最も大きく、中間区間で
はそれより小さくなる。即ち、架空地線の温度上昇は、
変電所に近い区間では高く、変電所から離れた区間では
低くなることを検知したのである。[Means for Solving the Problem and Its Action] The present inventors complete the present invention by detecting that the magnitude of the ground fault current flowing through the overhead ground wire in the event of a ground fault is not uniform over all routes. Came to. For example, in an overhead power transmission line that connects a substation and a load, it is the largest in a section near the substation and smaller than that in an intermediate section or a section near the load. In addition, the overhead transmission line that connects substations and substations is the largest in the sections near the substations at both ends, and smaller in the middle section. That is, the temperature rise of the overhead ground wire is
It was detected that it was high in the section near the substation and low in the section away from the substation.
そこで本発明は、架空地線に光伝送線を複合してなる
架空送電線路において、変電所に近い区間の架空地線に
はシリコン樹脂被覆光ファイバ素線を用いた耐熱光伝送
線を複合し、変電所から離れた区間の架空地線にはUV樹
脂（紫外線硬化型樹脂）被覆光ファイバ素線を用いた光
伝送線を複合したことを特徴とするものである。Therefore, the present invention relates to an overhead power transmission line in which an optical transmission line is combined with an overhead ground wire, and a heat resistant optical transmission line using a silicon resin-coated optical fiber element wire is combined with the overhead ground wire in a section near a substation. The optical transmission line using a UV resin (ultraviolet curing resin) coated optical fiber element wire is combined with the overhead ground wire in the section away from the substation.
UV樹脂被覆光ファイバ素線はシリコン樹脂被覆光ファ
イバ素線より耐熱性は低いが安価である。つまり本発明
は、全ルートにわたって同じ光伝送線を使用するのでは
なく、温度上昇の高い区間にはシリコン樹脂被覆光ファ
イバ素線を用いた耐熱光伝送線を使用するが、温度上昇
の低い区間には安価なUV樹脂被覆光ファイバ素線を用い
た光伝送線を使用することにより、コストダウンを図っ
たものである。UV resin coated optical fiber strands have lower heat resistance than silicon resin coated optical fiber strands, but are less expensive. In other words, the present invention does not use the same optical transmission line for all routes, but uses a heat-resistant optical transmission line using a silicon resin-coated optical fiber element for a section where the temperature rise is high, but a section where the temperature rise is low. The cost is reduced by using an optical transmission line that uses an inexpensive UV resin-coated optical fiber element.
以下、本発明の実施例を図面を参照して詳細に説明す
る。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
図−１は変電所11と負荷12を結ぶ架空送電線路13を示
す。この架空送電線路13の架空地線14には光伝送線が内
蔵されている。架空地線14に内蔵される光伝送線は区間
によって構成が異なっている。Figure 1 shows an overhead transmission line 13 connecting a substation 11 and a load 12. An optical transmission line is built in the overhead ground wire 14 of the overhead power transmission line 13. The configuration of the optical transmission line built in the overhead ground wire 14 differs depending on the section.
すなわち変電所11に近い区間Ａでは架空地線14の温度
上昇が高いため図−２に示すような耐熱性の高い光伝送
線が使用されている。この光伝送線15は、シリコン樹脂
被覆光ファイバ素線16をFRP介在17等と共に複数本撚り
合わせ、その外周にPFA、PTFE等のフッ素樹脂被覆ある
いはポリイミド等の耐熱性テープ巻き層からなる耐熱性
外被18を施したものである。That is, since the temperature of the overhead ground wire 14 is high in the section A near the substation 11, an optical transmission line having high heat resistance as shown in FIG. 2 is used. This optical transmission line 15 is formed by twisting a plurality of silicon resin-coated optical fiber wires 16 together with FRP interposers 17 and the like, and forming a heat-resistant tape winding layer of PFA, PTFE or other fluororesin coating or polyimide or the like on the outer periphery thereof. It has a jacket 18.
また変電所11から離れた中間区間Ｂおよび負荷に近い
区間Ｃでは架空地線14の温度上昇が低いため図−３に示
すような光伝送線が使用されている。この光伝送線19
は、UV樹脂被覆光ファイバ素線20をFRP介在17等と共に
複数本撚り合わせ、その外周にPVC等からなる外被21を
施したものである。In the intermediate section B away from the substation 11 and the section C close to the load, the temperature rise of the overhead ground wire 14 is low, so that the optical transmission line as shown in FIG. 3 is used. This optical transmission line 19
Is a plurality of UV resin-coated optical fiber strands 20 twisted together with an FRP interposer 17 and the like, and a jacket 21 made of PVC or the like provided on the outer periphery thereof.
図−４は変電所11Pと変電所11Qを結ぶ架空送電線路13
を示す。この架空送電線路13の架空地線14に内蔵される
光伝送線も区間によって構成が異なっており、両変電所
11P、11Qに近い区間Ａ、Ｃでは図−２のような耐熱光伝
送線15が使用され、両変電所11P、11Qから離れた中間区
間Ｂでは図−３のような光伝送線19が使用されている。Figure 4 shows an overhead transmission line 13 that connects substation 11P and substation 11Q.
Is shown. The configuration of the optical transmission line built in the overhead ground wire 14 of the overhead power transmission line 13 also differs depending on the section.
Heat-resistant optical transmission line 15 as shown in Fig. 2 is used in sections A and C close to 11P and 11Q, and optical transmission line 19 as shown in Fig. 3 is used in intermediate section B away from both substations 11P and 11Q. Has been done.
以上の実施例では光伝送線を架空地線に内蔵させる場
合を説明したが、光伝送線を架空地線に巻き付ける場合
も同様である。In the above embodiments, the case where the optical transmission line is built in the overhead ground wire has been described, but the same applies to the case where the optical transmission line is wound around the overhead ground wire.
以上説明したように本発明によれば、架空地線に複合
する光伝送線を全ルートにわたって同じ構成とせず、架
空地線の温度上昇の高い区間ではシリコン樹脂光ファイ
バ素線を用いた光伝送線を使用し、架空地線の温度上昇
の低い区間では安価なUV樹脂被覆光ファイバ素線を用い
た光伝送線を使用したことにより、従来より経済的な光
通信ルートを構成できる利点がある。As described above, according to the present invention, the optical transmission line that is combined with the overhead ground wire does not have the same configuration over the entire route, and the optical transmission using the silicon resin optical fiber strand is performed in the section where the temperature rise of the overhead ground wire is high. It is advantageous to construct a more economical optical communication route than before by using optical transmission lines that use inexpensive UV resin coated optical fiber strands in the section where the temperature rise of the overhead ground wire is low .
図−１は本発明の一実施例に係る架空送電線路の概略構
成図、図−２および図−３はそれに使用される光伝送線
の断面図、図−４は本発明の他の実施例に係る架空送電
線路の概略構成図である。 11・11P・11Q:変電所、12:負荷、13:架空送電線路、14:
架空地線、15:耐熱光伝送線、16:シリコン樹脂光ファイ
バ素線、19:光伝送線、20:UV樹脂被覆光ファイバ素線。FIG. 1 is a schematic configuration diagram of an overhead power transmission line according to an embodiment of the present invention, FIGS. 2 and 3 are sectional views of an optical transmission line used therein, and FIG. 4 is another embodiment of the present invention. 2 is a schematic configuration diagram of an overhead power transmission line according to FIG. 11 / 11P / 11Q: Substation, 12: Load, 13: Overhead transmission line, 14:
Overhead ground wire, 15: Heat-resistant optical transmission line, 16: Silicon resin optical fiber strand, 19: Optical transmission line, 20: UV resin coated optical fiber strand.
フロントページの続き (56)参考文献 特開 昭61−47912（ＪＰ，Ａ) 実開 昭62−23022（ＪＰ，Ｕ)Continuation of the front page (56) References Japanese Patent Laid-Open No. 61-47912 (JP, A) Actually published 62-23022 (JP, U)
Claims (1)
電線路において、変電所に近い区間の架空地線にはシリ
コン樹脂被覆光ファイバ素線を用いた耐熱光伝送線を複
合し、変電所から離れた区間の架空地線にはUV樹脂（紫
外線硬化型樹脂）被覆光ファイバ素線を用いた光伝送線
を複合したことを特徴とする架空送電線路。1. In an overhead power transmission line in which an optical transmission line is combined with an overhead ground wire, a heat resistant optical transmission line using a silicon resin coated optical fiber element wire is combined with the overhead ground wire in a section near a substation. , An overhead power transmission line characterized in that the overhead ground wire in the section away from the substation is composed of an optical transmission line using a UV resin (ultraviolet curing resin) coated optical fiber element wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1159620A JP2677868B2 (en) | 1989-06-23 | 1989-06-23 | Overhead transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1159620A JP2677868B2 (en) | 1989-06-23 | 1989-06-23 | Overhead transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0325807A JPH0325807A (en) | 1991-02-04 |
| JP2677868B2 true JP2677868B2 (en) | 1997-11-17 |
Family
ID=15697699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1159620A Expired - Fee Related JP2677868B2 (en) | 1989-06-23 | 1989-06-23 | Overhead transmission line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2677868B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520477A (en) * | 2012-01-09 | 2012-06-27 | 南京全信传输科技股份有限公司 | High temperature (150 DEG C) resistant tightly packaged fiber and preparation process thereof |
| CN102520476A (en) * | 2012-01-09 | 2012-06-27 | 南京全信传输科技股份有限公司 | High-temperature 260 DEG C resistant tightly-packaged fiber and preparation process thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6147912A (en) * | 1984-08-14 | 1986-03-08 | Kokusai Denshin Denwa Co Ltd <Kdd> | Fiber unit for optical submarine cable |
| JPH0643944Y2 (en) * | 1985-07-25 | 1994-11-14 | 住友電気工業株式会社 | Optical composite overhead ground wire |
-
1989
- 1989-06-23 JP JP1159620A patent/JP2677868B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520477A (en) * | 2012-01-09 | 2012-06-27 | 南京全信传输科技股份有限公司 | High temperature (150 DEG C) resistant tightly packaged fiber and preparation process thereof |
| CN102520476A (en) * | 2012-01-09 | 2012-06-27 | 南京全信传输科技股份有限公司 | High-temperature 260 DEG C resistant tightly-packaged fiber and preparation process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0325807A (en) | 1991-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |