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High-reliability optical fiber composite insulator and preparation method thereof

A fiber composite and reliability technology, which is applied in the direction of insulators, fiber mechanical structures, electrical components, etc., can solve problems such as affecting life, fiber breakage, and failure, and achieves improved reliability, high-voltage resistance, and good electrical insulation. Effect

Active Publication Date: 2020-10-16
CHANGSHU INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] An object of the present invention is to provide a high-reliability optical fiber composite insulator to solve the problem that the internal optical fiber of the insulator is broken due to external high temperature and traction force, resulting in failure and affecting the service life

Method used

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  • High-reliability optical fiber composite insulator and preparation method thereof
  • High-reliability optical fiber composite insulator and preparation method thereof
  • High-reliability optical fiber composite insulator and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Example 1, please combine figure 1 with figure 2 As shown, the high-reliability optical fiber composite insulator involved in this embodiment includes a core rod 1, a skeleton 2, a first heat insulating layer 3, an umbrella shed 4 and fittings 5, and the core rod 1 includes an optical fiber cured body 10, a second heat insulating layer 11 and the mandrel body layer 12, the optical fiber cured body 10 is an epoxy resin rod, and the epoxy resin rod can be provided with 2 to 20 axially arranged optical fibers 101. In this embodiment, there are 6 optical fibers, and the 6 optical fibers are mutually The gaps between the optical fibers are filled with epoxy resin 102 . The optical fiber 101 has a core + cladding structure, wherein the core diameter is ≥ 3 mm, the outer diameter of the optical fiber 101 is ≥ 5 mm, and the refractive index n1 of the core and the refractive index n2 of the cladding need to meet: n1-n2 ≥ 0.6, the optical fiber 101 Allowable tensile strength ≥...

Embodiment 2

[0036] Embodiment 2, the structure of the high-reliability optical fiber composite insulator is the same as that of Embodiment 1, and its preparation method is as follows:

[0037] S1. Arrange 6 optical fibers 101 in the first mold, fill the epoxy resin 102 isolating the optical fibers 101 between the optical fibers 101 and cure to obtain the optical fiber cured body 10, after completion, the epoxy resin 102 is coated on the outside of all the optical fibers 101, The optical fiber 101 is arranged along the axial direction of the optical fiber cured body 10;

[0038] S2. Coating and curing the second heat insulating layer 11 made of glass fiber and silicate on the outside of the fiber cured body 10 through the second mold. The mass ratio of glass fiber to silicate is 1:1~2, and the fiber is cured The cross section of the body 10 is at the center of the cross section of the second heat insulating layer 11;

[0039] S3. Cover and solidify the mandrel body layer 12 outside the se...

Embodiment 3

[0043] Embodiment 3, the structure of the high-reliability optical fiber composite insulator is the same as that of Embodiment 1, and its preparation method is as follows:

[0044] S1. Arrange 6 optical fibers 101 in the first mold, fill the epoxy resin 102 isolating the optical fibers 101 between the optical fibers 101 and cure to obtain the optical fiber cured body 10, after completion, the epoxy resin 102 is coated on the outside of all the optical fibers 101, The optical fiber 101 is arranged along the axial direction of the optical fiber cured body 10;

[0045] S2. Coating and curing the second heat insulating layer 11 made of glass fiber and silicate on the outside of the fiber cured body 10 through the second mold. The mass ratio of glass fiber to silicate is 1:1~2, and the fiber is cured The cross section of the body 10 is at the center of the cross section of the second heat insulating layer 11;

[0046] S3. Cover and solidify the mandrel body layer 12 outside the se...

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Abstract

The invention discloses a high-reliability optical fiber composite insulator. The insulator comprises a core rod, a skeleton, a first heat insulation layer, an umbrella skirt and an armour clamp. Thecore rod comprises an optical fiber solidified body, a second heat insulation layer and a core rod body layer; the optical fiber solidified body is an epoxy resin rod; at least two optical fibers which are axially arranged and spaced from each other are arranged in the epoxy resin rod. The second heat insulation layer is coated and cured outside the optical fiber cured body; the core rod body layer is coated and cured outside the second insulating layer; the skeleton is a plurality of epoxy resin rings which are solidified on the outer peripheral surface of the core rod and are axially arranged at intervals; wherein the first heat insulation layer wraps and is solidified outside the skeleton and connected with the adjacent epoxy resin rings in a filling mode, the umbrella skirt wrap and are solidified outside the first heat insulation layer and form umbrella covers at the positions of the epoxy resin rings, the first heat insulation layer is made of glass fibers, and the second heat insulation layer is made of glass fibers and silicate in a mixed mode. The invention further discloses a preparation method for sequentially curing from inside to outside. The invention solves the problem that the service life is influenced by failure due to the fact that the optical fiber in the insulator is snapped under the action of external high temperature and traction.

Description

technical field [0001] The invention relates to an insulator and a preparation method thereof, in particular to a high-reliability optical fiber composite insulator and a preparation method thereof. Background technique [0002] Composite insulators are a special insulation control that can play an important role in overhead transmission lines. Insulators play two basic roles in overhead transmission lines, namely supporting wires and preventing current from returning to the ground. These two functions must be guaranteed. Insulators should not fail due to various stresses caused by changes in the environment and electrical load conditions, otherwise It will damage the service life and operating life of the entire line. The combination of composite insulators and optical fibers can realize monitoring, information collection and transmission under high voltage, and facilitate the safe operation and timely maintenance of power transmission and transformation lines. [0003] I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B17/38H01B19/00G02B6/44
CPCH01B17/38H01B19/00G02B6/44
Inventor 王书昶丁恒娄祎祎穆久涛况亚伟刘玉申
Owner CHANGSHU INSTITUTE OF TECHNOLOGY
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