High-voltage insulated optical fiber cylinder
A technology of high-voltage insulation and optical fiber, applied in the direction of fiber mechanical structure, etc., can solve the problems of short service life, complex processing, permanent damage of optical fiber, etc., and achieve the effect of increasing the scope of use, simple assembly process, and reduced production process
Active Publication Date: 2012-01-11
CHINA ELECTRIC POWER RES INST
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Problems solved by technology
Embedding the optical fiber in a very long groove can easily cause permanent damage to the optical fiber
This form of fiber column generally has the problems of poor insulation performance, large optical loss, complex processing, low yield, short service life and limited number of built-in optical fibers
[0005] When used in an UHV power system, compared with the current ultra-high voltage AC transmission line, the voltage level is doubled, and the insulation level of the fiber column is doubled. Too long (the length will reach more than ten meters), which will bring inconvenience to production and transportation, and will increase the cost of manufacturing and transportation
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[0038] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0039] figure 2 Shown is the high-voltage insulating fiber column of a basic design of the present invention. In the present embodiment, the high-voltage insulating optical fiber column is a whole design (defined as a conduit unit herein), mainly composed of optical fiber 10, hollow insulating conduit 4, fittings , pressure equalizing ring 9 and other components.
[0040] The middle part of the high-voltage insulating optical fiber column in this embodiment is a hollow insulating conduit 4 in which a group of optical fibers can be inserted. The conduit is preferably made of epoxy material, and the conduit is covered with an outer insulating material, which can be an organic composite. Material. see Figure 2a , Figure 2b , the ho...
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The invention discloses a high-voltage insulated optical fiber cylinder, which comprises an optical fiber core set and at least one catheter unit. A hollow insulated catheter is arranged in the catheter unit. Hardware fittings are connected at the two ends of the hollow insulated catheter. Each hardware fitting at least comprises a transition flange and a seal head with an optical fiber outgoing interface. A bellows used for penetrating optical fiber is led out from the optical fiber interface of each seal head. A connecting plate which can be bent is arranged between the seal heads of adjacent catheter units. The bellows led out from the seal heads of the adjacent catheter units are communicated with each other. A group of optical fiber are placed in the hollow insulated catheter. The two ends of the optical fiber are led out from the hollow insulated catheter sequentially through the transition flange, the seal heads and the bellows. By adopting a serial-type structure, the optical fiber is uninterrupted from the head to the tail and is not required to be fused, the insulation performance and the service life of the optical fiber cylinder are improved and the optical loss is reduced; and the high-voltage insulated optical fiber cylinder can be folded and the production and the transportation are facilitated.
Description
technical field [0001] The invention belongs to the technical field of high voltage and insulation, and may also belong to the field of optical communication, and in particular relates to a high-voltage insulating optical fiber column. Background technique [0002] In China, the general optical fiber column is mainly used for electronic transformers and other equipment, only a few optical fibers are needed, and the epoxy core rod embedded optical fiber design is used to protect the optical fiber. [0003] figure 1 It is a schematic diagram of the structure of the fiber embedded in the epoxy core rod of the existing fiber column. Several parallel grooves are engraved on the periphery of the epoxy mandrel 1, and the optical fiber 2 is buried in the grooves. The epoxy core rod can be directly added with organic composite insulating material, or the epoxy rod can be put into the insulating cylinder and then filled with epoxy or other insulating substances. [0004] The length...
Claims
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IPC IPC(8): G02B6/44
Inventor张翠霞廖蔚明李国富刘之方周玮
OwnerCHINA ELECTRIC POWER RES INST