JPH03280312A - Optical fiber compound insulator - Google Patents
Optical fiber compound insulatorInfo
- Publication number
- JPH03280312A JPH03280312A JP2076711A JP7671190A JPH03280312A JP H03280312 A JPH03280312 A JP H03280312A JP 2076711 A JP2076711 A JP 2076711A JP 7671190 A JP7671190 A JP 7671190A JP H03280312 A JPH03280312 A JP H03280312A
- Authority
- JP
- Japan
- Prior art keywords
- silicone rubber
- optical fiber
- hole
- insulator
- elongation
- 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.)
- Granted
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 51
- 239000012212 insulator Substances 0.000 title claims abstract description 36
- 150000001875 compounds Chemical class 0.000 title abstract 2
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 49
- 239000004945 silicone rubber Substances 0.000 claims abstract description 49
- 239000002131 composite material Substances 0.000 claims description 17
- 229920001971 elastomer Polymers 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 4
- 239000006087 Silane Coupling Agent Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 17
- 230000003287 optical effect Effects 0.000 description 15
- 239000003566 sealing material Substances 0.000 description 10
- 229910052573 porcelain Inorganic materials 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 6
- 230000006866 deterioration Effects 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000035939 shock Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000005697 Pockels effect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000012966 insertion method Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011368 organic material 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
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
- G02B6/4417—High voltage aspects, e.g. in cladding
- G02B6/442—Insulators
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、送配電線網および変電所等における故障点検
出システムを形成する場合に主として用いられる光ファ
イバ複合碍子に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an optical fiber composite insulator that is mainly used when forming a fault detection system in power transmission and distribution lines, substations, and the like.
（従来の技術）
送配電線あるいは電力変電所では落雷事故等により送配
電線路あるいは変電所内に発生した故障点を速やかに検
知し、復旧するシステムの開発が望まれている。このた
め、従来、ファラデー効果、ポッケルス効果を持つ光セ
ンサーを利用した異常電流、異常電圧検出装置が使用さ
れている。(Prior Art) There is a desire to develop a system for quickly detecting and restoring failure points that occur in power transmission and distribution lines or substations due to lightning accidents or the like. For this reason, conventionally, abnormal current and abnormal voltage detection devices have been used that utilize optical sensors having Faraday effect and Pockels effect.
これらの装置では、配電線に付けたセンサーと故障点検
出器は送電電圧、送電電流を絶縁する必要があるため、
碍子を仲介とした絶縁を実施する必要がある。従って、
光信号のみを電送し、電気的に絶縁性を保つために、光
ファイバを内蔵した光ファイバ複合碍子を使用する必要
がある。In these devices, the sensors and fault point detectors attached to the distribution lines must be insulated from the transmission voltage and current.
It is necessary to perform insulation using an insulator as an intermediary. Therefore,
In order to transmit only optical signals and maintain electrical insulation, it is necessary to use an optical fiber composite insulator with built-in optical fibers.
この目的で使用される光ファイバ複合碍子としては、種
々のものが知られており、例えば、特開昭６０−１５８
４０２号公報とか実開昭６４−３１６２０号公報におい
て、碍子の中心部に貫通孔を有し、この貫通孔の内部に
光ファイバを挿通したうえでエポキシ樹脂やシリコーン
ゴム等の絶縁物を貫通孔の全体もしくは部分に充填した
ものが知られている。Various types of optical fiber composite insulators used for this purpose are known, for example,
In Publication No. 402 and Japanese Utility Model Application Publication No. 64-31620, the insulator has a through hole in the center, an optical fiber is inserted into the through hole, and an insulating material such as epoxy resin or silicone rubber is inserted into the through hole. It is known that the whole or part of the
（発明が解決しようとする課Ｈ）
しかしながら、上述したエポキシ樹脂やシリコーンゴム
等の有機物を封着材に用いた光ファイバ複合碍子の場合
、以下の問題点があった。(Problem H to be Solved by the Invention) However, in the case of the optical fiber composite insulator using the above-mentioned organic substance such as epoxy resin or silicone rubber as a sealing material, there are the following problems.
エポキシ樹脂もしくは高強度・低伸度シリコーンゴムの
ように、熱膨張が磁器に比べ１０〜１０２倍も大きく、
かつヤング率の高い有機物を封着材に用いた場合、使用
環境中の気温変化に伴いこの封着材が膨脹収縮を繰り返
す際、光ファイバに大きな応力を繰り返しかかるため、
マイクロベンディング等による光ファイバの光伝送性能
の低下および短期間での光ファイバの断線が生じる問題
があった。Thermal expansion is 10 to 102 times greater than that of porcelain, such as epoxy resin or high strength/low elongation silicone rubber.
When an organic substance with a high Young's modulus is used as a sealing material, large stress is repeatedly applied to the optical fiber when the sealing material repeatedly expands and contracts as the temperature changes in the usage environment.
There has been a problem in that the optical transmission performance of the optical fiber deteriorates due to microbending and the like, and the optical fiber breaks in a short period of time.
さらに、使用環境中の気温変化に伴いこの封着材が膨脹
収縮を繰り返す際、これらの封着材の内部に亀裂が発生
したり、封着材と磁器との接着界面で剥離が生じたりし
、その結果、碍子の絶縁性能が低下する問題があった。Furthermore, when this sealing material expands and contracts repeatedly due to temperature changes in the usage environment, cracks may occur inside the sealing material or peeling may occur at the adhesive interface between the sealing material and the porcelain. As a result, there was a problem that the insulation performance of the insulator deteriorated.
ゲル状もしくはゲル状に近いゴムのように、熱膨張は磁
器に比べ大きいが、ヤング率の低い有機物を封着材に用
いた場合、使用環境中の気温変化に伴いこの封着材が膨
脹収縮を繰り返す際、光ファイバに大きな応力はかから
ないため、光伝送性能の低下や光ファイバの断線はなか
った。しかしながら、これら封着材は、磁器との接着性
に欠けるため封着材と磁器との接着界面の剥離が生じ、
その結果、碍子の絶縁性能が低下する問題があった。Like gel-like or gel-like rubber, its thermal expansion is larger than that of porcelain, but when an organic material with a low Young's modulus is used as a sealing material, the sealing material expands and contracts as the temperature changes in the usage environment. When repeating this process, no large stress was applied to the optical fiber, so there was no decrease in optical transmission performance or breakage of the optical fiber. However, these sealing materials lack adhesiveness with porcelain, resulting in peeling of the adhesive interface between the sealing material and the porcelain.
As a result, there was a problem that the insulation performance of the insulator deteriorated.
本発明の目的は上述した課題を解消して、長期間にわた
り絶縁性能に優れ、かつ良好な光伝送性能と光ファイバ
の長寿命化を達成できる光ファイバ複合碍子を提供しよ
うとするものである。An object of the present invention is to solve the above-mentioned problems and provide an optical fiber composite insulator that has excellent insulation performance over a long period of time, and can achieve good optical transmission performance and a long life of the optical fiber.
（課題を解決するための手段）
本発明の光ファイバ複合碍子は、碍子本体に貫通孔を設
け、その内部に少なくとも一本以上の光ファイバを挿通
してシリコーンゴムにより気密封着した光ファイバ複合
碍子において、前記光ファイバの周囲に、破断時の伸び
が５００％以上で５０％伸び時の引張応力が２ｋｇ／ｃ
ｔａ”以下の高伸度・低モジュラスの第１のシリコーン
ゴム層を設け、この第１のシリコーンゴム層と貫通孔の
内壁との間に、破断時の伸びが３００％以上で引張強度
が３０ｋｇ／ ｃｍ ’以上の高伸度・高強度の第２の
シリコーンゴム層を設けたことを特徴とするものである
。(Means for Solving the Problems) The optical fiber composite insulator of the present invention is an optical fiber composite insulator in which a through hole is provided in the insulator body, and at least one or more optical fibers are inserted into the insulator body and hermetically sealed with silicone rubber. In the insulator, the elongation at break is 500% or more and the tensile stress at 50% elongation is 2 kg/c around the optical fiber.
A first silicone rubber layer with high elongation and low modulus of less than "ta" is provided, and between this first silicone rubber layer and the inner wall of the through hole, the elongation at break is 300% or more and the tensile strength is 30 kg. The second silicone rubber layer has a high elongation and high strength of 1/cm' or more.
（作 用）
上述した構成において、高伸度・低モジュラスの第１の
シリコーンゴム層を設けることにより、使用環境中の気
温変化に伴いシリコーンゴムが膨脹収縮する際に、光フ
ァイバにかかる応力が軽減される。その結果、光伝送性
能が向上する。加えて、光ファイバの疲労劣化を防ぐこ
とができ、光ファイバの長寿命化を達成することができ
る。(Function) In the above configuration, by providing the first silicone rubber layer with high elongation and low modulus, stress applied to the optical fiber is reduced when the silicone rubber expands and contracts due to temperature changes in the usage environment. Reduced. As a result, optical transmission performance is improved. In addition, fatigue deterioration of the optical fiber can be prevented, and the life of the optical fiber can be extended.
また、高伸度・高強度の第２のシリコーンゴム層を設け
ることにより、このゴムと磁器が強固に接着し、かつ使
用環境中の気温変化に伴いこのゴムが膨脹収縮を繰り返
す際、ゴム内部に亀裂が発生したり、ゴムと磁器との接
着界面で剥離が生じたりすることがなくなる。その結果
、長期間にわたり、碍子の絶縁性能を維持することがで
きる。In addition, by providing a second silicone rubber layer with high elongation and high strength, this rubber and porcelain firmly adhere, and when this rubber repeatedly expands and contracts due to temperature changes in the usage environment, the inside of the rubber This eliminates the occurrence of cracks in the rubber and the occurrence of peeling at the adhesive interface between the rubber and the porcelain. As a result, the insulation performance of the insulator can be maintained over a long period of time.
ここで、光ファイバの周囲の第１のシリコーンゴム層を
破断時の伸びが５００％以上で５０％伸び時の引張応力
が２ｋｇ／ｃｕ＋”以下と限定し、第２のシリコーンゴ
ム層を破断時の伸びが３００％以上で引張強度が３０
ｋｇ ／ ｃｍ ”以上と限定したのは、後述する実施
例から明らかなように、上述した所定の特性を有する第
１および第２のシリコーンゴム層の組合せでないと、本
発明で目的とする長期間にわたり絶縁性に優れかつ良好
な光伝送性能および長寿命の光ファイバを達成できない
ためである。Here, the first silicone rubber layer around the optical fiber is limited to have an elongation at break of 500% or more and a tensile stress at 50% elongation of 2 kg/cu+'' or less, and the second silicone rubber layer is The elongation is 300% or more and the tensile strength is 30
kg/cm" or more is because, as is clear from the examples described later, unless the first and second silicone rubber layers have the above-mentioned predetermined characteristics, the long-term This is because it is not possible to achieve an optical fiber with excellent insulation properties, good optical transmission performance, and long life.
なお、高伸度・低モジュラスの第１のシリコーンゴム層
は、光ファイバの被覆部および高伸度・高強度の第２の
シリコーンゴム層と接着性を有することが望ましい。Note that it is desirable that the first silicone rubber layer with high elongation and low modulus has adhesive properties with the coating portion of the optical fiber and the second silicone rubber layer with high elongation and high strength.
（実施例）
第１図は本発明の光ファイバ複合碍子の一例の構造を示
す図である。第１図に示す例では、碍子１の中心部に貫
通孔２を設け、その内部に２本の光ファイバ３−１．３
−２を挿通して、光ファイバ３−１および３−２の周囲
全体に高伸度・低モジュラスの第１のシリコーンゴム層
４−１を設けるとともに、この第１のシリコーンゴム層
４−１と貫通孔２の内壁２−１との間合体に高伸度・高
強度の第２のシリコーンゴム層４−２を設けた光ファイ
バ複合碍子を示している。この第１のシリコーンゴム層
４−１としては、破断時の伸びが５００％以上で５０％
伸び時の引張応力が２ｋｇ／ｃｓａ！以下の特性を有す
るシリコーンゴム材料を選択するとともに、第２のシリ
コーンゴム層４−２としては、破断時の伸びが３００％
以上で引張強度が３０ｋｇ ／ ｃｍ ”以上の特性を
有するシリコーンゴム材料を選択する必要がある。(Example) FIG. 1 is a diagram showing the structure of an example of the optical fiber composite insulator of the present invention. In the example shown in FIG. 1, a through hole 2 is provided in the center of the insulator 1, and two optical fibers 3-1.
-2 is inserted to provide a first silicone rubber layer 4-1 with high elongation and low modulus all around the optical fibers 3-1 and 3-2, and this first silicone rubber layer 4-1 An optical fiber composite insulator is shown in which a second silicone rubber layer 4-2 with high elongation and high strength is provided between the inner wall 2-1 of the through-hole 2 and the inner wall 2-1 of the through-hole 2. This first silicone rubber layer 4-1 has an elongation at break of 500% or more and 50%.
Tensile stress during elongation is 2kg/csa! A silicone rubber material having the following properties is selected, and the elongation at break is 300% for the second silicone rubber layer 4-2.
As described above, it is necessary to select a silicone rubber material having a tensile strength of 30 kg/cm'' or more.
上述した構造の光ファイバ複合碍子の製造方法の一例と
しては、まず、被覆部の表面にシランカップリング剤等
を塗布してプライマー処理を実施した光ファイバ３−１
．３−２を準備する。次に、貫通孔２の直径より小さい
直径を有する筒状の型に、準備したプライマー処理後の
光ファイバ３−１．３−２を位置決めして挿通し、第１
のシリコーンゴム層４−１を形成するための所定の特性
を有する高伸度・低モジュラスのシリコーンゴムを充填
して硬化させる。硬化後、光ファイバ３−１゜３−２を
内部に固定したシリコーンゴムの筒体を型から取り出す
。その後、光ファイバ３−１．３−２を内部に固定した
シリコーンゴムの筒体を貫通孔２内に位置決めして挿入
し、第２のシリコーンゴム層４−２を形成するための所
定の特性を有する高伸度・高強度のシリコーンゴムを、
筒体外周部と貫通孔２の内壁２−１との間に充填して硬
化させることにより、本発明の光ファイバ複合碍子を得
ている。As an example of a method for manufacturing an optical fiber composite insulator having the above-described structure, first, an optical fiber 3-1 which has been subjected to primer treatment by applying a silane coupling agent or the like to the surface of the coating portion is prepared.
．． Prepare 3-2. Next, the prepared optical fiber 3-1.3-2 after primer treatment is positioned and inserted into a cylindrical mold having a diameter smaller than that of the through hole 2,
High elongation and low modulus silicone rubber having predetermined characteristics for forming the silicone rubber layer 4-1 is filled and cured. After curing, the silicone rubber cylinder with the optical fibers 3-1 and 3-2 fixed therein is removed from the mold. Thereafter, a silicone rubber cylinder with an optical fiber 3-1, 3-2 fixed therein is positioned and inserted into the through hole 2, and predetermined characteristics are determined to form a second silicone rubber layer 4-2. High elongation and high strength silicone rubber with
The optical fiber composite insulator of the present invention is obtained by filling and curing the space between the outer circumference of the cylinder and the inner wall 2-1 of the through hole 2.
以下、実際の例について説明する。An actual example will be explained below.
実施■
上述した製造方法に従って、第１表に示すように、所定
の特性を有する第１のシリコーンゴム層と第２のシリコ
ーンゴム層とから、本発明の試験Ｎｏ、 １〜８と、比
較例の試験階、９〜１２と、従来例の試験ｋ１３の光フ
ァイバ複合碍子を準備した。準備した光ファイバ複合碍
子に対し、光伝送損失量変化量と熱衝撃劣化試験後の故
障率を調査した。Implementation ■ According to the above-mentioned manufacturing method, as shown in Table 1, from the first silicone rubber layer and the second silicone rubber layer having predetermined characteristics, test Nos. 1 to 8 of the present invention and comparative examples were prepared. Optical fiber composite insulators for test floors 9 to 12 and conventional test K13 were prepared. For the prepared optical fiber composite insulators, we investigated the amount of change in optical transmission loss and the failure rate after thermal shock deterioration tests.
光伝送損失量変化量は、−２０°Ｃ〜８０°Ｃの間の光
伝送損失量の変化量を各水準１０個の平均値として求め
た。尚、光伝送損失量は挿入法により光ファイバ伝送損
失の測定により求めた。熱衝撃劣化試験後の故障率とし
て、高温槽８０’Ｃ１低温槽−２０℃との聞咎温度での
保持時間を３０分としてヒートザイクル試験を実施し、
各水準１０個のうち故障率Ｏ％のものを○、故障率ｌＯ
〜２０％のものを△、故障率が３０％以上のものを×と
して第３表中に表記した。なお、故障とは、光ファイバ
の破損もしくは光伝送損失量が５０％以上になった場合
、または絶縁貫通破壊が生じた場合のことを示す。光伝
送損失量変化量の結果を第２表に、熱衝撃劣化試験後の
故障率の結果を第３表に示す。The amount of change in optical transmission loss was determined by averaging the amount of change in optical transmission loss between -20° C. and 80° C. for 10 samples for each level. The amount of optical transmission loss was determined by measuring optical fiber transmission loss using the insertion method. As a failure rate after the thermal shock deterioration test, a heat cycle test was conducted with a holding time of 30 minutes at the temperature of the high temperature tank 80'C1 and the low temperature tank -20°C.
Among the 10 items of each level, those with a failure rate of 0% are ○, failure rate is lO
In Table 3, those with a failure rate of ~20% are marked as △, and those with a failure rate of 30% or more are marked as ×. Note that a failure refers to a case where the optical fiber is damaged or the amount of optical transmission loss becomes 50% or more, or a case where dielectric breakdown occurs. Table 2 shows the results of the amount of change in optical transmission loss, and Table 3 shows the results of the failure rate after the thermal shock deterioration test.
第
表
第
２
表
第
表
第２表および第３表の結果から、本発明の試験ＮＯ，１
〜８は比較例の試験Ｎα９〜１２および従来例の試ＭＮ
ａ１３と比較して、光伝送損失量変化量も良好で、熱衝
撃劣化試験後の故障率も良好であることがわかる。なお
、試験Ｎα１１のように第１層に高強度・低伸度のゴム
を用いた場合はゴム内部に亀裂が発生するため絶縁貫通
破壊が生じる。また、試験階１２のように第２層に低モ
ジュラスのゴムを用いた場合は、碍子との接着界面が弱
くなるため、接着界面での絶縁貫通破壊が生じる。Table 2 From the results in Tables 2 and 3, test No. 1 of the present invention
-8 are tests Nα9-12 of comparative examples and test MN of conventional examples
It can be seen that compared to a13, the amount of change in optical transmission loss was also good, and the failure rate after the thermal shock deterioration test was also good. In addition, when rubber with high strength and low elongation is used for the first layer as in test Nα11, cracks occur inside the rubber, resulting in dielectric breakdown. Furthermore, when a low modulus rubber is used for the second layer as in test floor 12, the adhesive interface with the insulator becomes weak, resulting in dielectric breakdown at the adhesive interface.
（発明の効果）
上述したところから明らかなように、本発明の光ファイ
バ複合碍子によれば、碍子の貫通孔内をシリコーンゴム
で封着するにあたり、光ファイバの周囲に所定の高伸度
・低モジュラスの第１のシリコーンゴム層を形成し、さ
らにその外側に所定の高伸度・高強度の第２のシリコー
ンゴム層を形成しているため、シリコーンゴムと磁器が
強固に接着し、かつシリコーンゴムが温度変化により膨
張収縮する場合でも接着面のばくり及びゴム内部の亀裂
の発生がなく、碍子の絶縁性能が長期間にわたり保持さ
れる。さらにシリコーンゴムが温度変化により膨張収縮
する場合でも、光ファイバの疲労劣化を防ぐことができ
、その結果光伝送性能の向上、光ファイバの長寿命化を
達成することができる。(Effects of the Invention) As is clear from the above, according to the optical fiber composite insulator of the present invention, when sealing the inside of the through hole of the insulator with silicone rubber, a predetermined high elongation layer is applied around the optical fiber. Since a first silicone rubber layer with a low modulus is formed, and a second silicone rubber layer with a predetermined high elongation and high strength is formed on the outside thereof, the silicone rubber and the porcelain are strongly bonded and Even when the silicone rubber expands and contracts due to temperature changes, the bonded surface does not peel or cracks occur inside the rubber, and the insulating performance of the insulator is maintained for a long period of time. Furthermore, even when silicone rubber expands and contracts due to temperature changes, fatigue deterioration of the optical fiber can be prevented, and as a result, optical transmission performance can be improved and the life of the optical fiber can be extended.
第１図は本発明の光ファイバ複合碍子の一例の構造を示
す図である。
ｌ・・・碍子 ２・・・貫通孔３−１．３
−２・・・光ファイバ
４−１・・・第１のシリコーンゴム層
４−２・・・第２のシリコーンゴム層
手FIG. 1 is a diagram showing the structure of an example of the optical fiber composite insulator of the present invention. l...Insulator 2...Through hole 3-1.3
-2... Optical fiber 4-1... First silicone rubber layer 4-2... Second silicone rubber layer
Claims (1)
本以上の光ファイバを挿通してシリコーンゴムにより気
密封着した光ファイバ複合碍子において、前記光ファイ
バの周囲に、破断時の伸びが５００％以上で５０％伸び
時の引張応力が２ｋｇ／ｃｍ＾２以下の高伸度・低モジ
ュラスの第１のシリコーンゴム層を設け、この第１のシ
リコーンゴム層と貫通孔の内壁との間に、破断時の伸び
が３００％以上で引張強度が３０ｋｇ／ｃｍ＾２以上の
高伸度・高強度の第２のシリコーンゴム層を設けたこと
を特徴とする光ファイバ複合碍子。1. An optical fiber composite insulator in which a through hole is provided in the insulator body, at least one optical fiber is inserted into the inside of the insulator body, and hermetically sealed with silicone rubber. % or more and a tensile stress at 50% elongation of 2 kg/cm^2 or less, a high elongation/low modulus first silicone rubber layer is provided between the first silicone rubber layer and the inner wall of the through hole. An optical fiber composite insulator comprising a second silicone rubber layer with high elongation and high strength, which has an elongation at break of 300% or more and a tensile strength of 30 kg/cm^2 or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2076711A JP2713796B2 (en) | 1990-03-28 | 1990-03-28 | Optical fiber composite insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2076711A JP2713796B2 (en) | 1990-03-28 | 1990-03-28 | Optical fiber composite insulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03280312A true JPH03280312A (en) | 1991-12-11 |
| JP2713796B2 JP2713796B2 (en) | 1998-02-16 |
Family
ID=13613129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2076711A Expired - Lifetime JP2713796B2 (en) | 1990-03-28 | 1990-03-28 | Optical fiber composite insulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2713796B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002334621A (en) * | 2001-05-08 | 2002-11-22 | Furukawa Electric Co Ltd:The | Insulator incorporating optical fiber |
| CN103219108A (en) * | 2013-04-19 | 2013-07-24 | 江苏神马电力股份有限公司 | Manufacturing method of insulator |
| CN103247398A (en) * | 2013-04-19 | 2013-08-14 | 江苏神马电力股份有限公司 | Insulator |
| CN105047331A (en) * | 2015-06-29 | 2015-11-11 | 浙江华高科技有限公司 | Intelligent fiberglass pipe and preparation method thereof and insulator using fiber pipe |
-
1990
- 1990-03-28 JP JP2076711A patent/JP2713796B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002334621A (en) * | 2001-05-08 | 2002-11-22 | Furukawa Electric Co Ltd:The | Insulator incorporating optical fiber |
| CN103219108A (en) * | 2013-04-19 | 2013-07-24 | 江苏神马电力股份有限公司 | Manufacturing method of insulator |
| CN103247398A (en) * | 2013-04-19 | 2013-08-14 | 江苏神马电力股份有限公司 | Insulator |
| CN103219108B (en) * | 2013-04-19 | 2016-02-24 | 江苏神马电力股份有限公司 | Insulator manufacture method |
| CN105047331A (en) * | 2015-06-29 | 2015-11-11 | 浙江华高科技有限公司 | Intelligent fiberglass pipe and preparation method thereof and insulator using fiber pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2713796B2 (en) | 1998-02-16 |
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