Intelligent optical fiber composite temperature measurement and transmission medium-voltage cable

An intelligent optical fiber and cable technology, applied in the direction of insulated cables, power cables, power cables with shielding layer/conductive layer, etc., can solve the problems of high production cost and complex structure, and achieve the effect of low cost and simple structure

Inactive Publication Date: 2015-05-13
STATE GRID CORP OF CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the currently used intelligent optical fiber composite temperature measurement transmission cable has high production cost and complex structure

Method used

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  • Intelligent optical fiber composite temperature measurement and transmission medium-voltage cable

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0019] Such as figure 1 As shown, the intelligent optical fiber composite temperature measurement transmission medium voltage cable according to the embodiment of the present invention includes an outer cladding 1, an optical unit 2 and a plurality of insulated cables 3 wrapped in the outer cladding 1, wherein:

[0020] The insulated cable 3 includes a conductive core 31 and a conductor shielding layer 32, a cross-linked polyethylene insulating layer 33, an insulating shielding layer 34 and a metal shielding layer 35 wrapped on the conductive core 31 from the inside to the outside in sequence, adjacent to each other. The metal shielding layers 35 of the insulated cables 3...

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Abstract

The invention discloses an intelligent optical fiber composite temperature measurement and transmission medium-voltage cable. Each insulating cable comprises a conductive cable core, a conductor shielding layer, a crosslinked polyethylene insulating layer, an insulating shielding layer and a metal shielding layer, wherein the conductor shielding layer, the crosslinked polyethylene insulating layer, the insulating shielding layer and the metal shielding layer sequentially wrap the conductive cable core from inside to outside. The metal shielding layers of every two adjacent insulating cables make contact with each other. A layer stranded optical fiber serves as an optical unit. The optical unit comprises a central reinforcement piece and a plurality of loose tubes arranged on the periphery of the central reinforcement piece in a layer stranded mode. At least one optical fiber is arranged in each loose tube. A protection sleeve is arranged on each loose tube in a sleeving mode. A non-metal reinforcement layer is arranged between each protection sleeve and the corresponding loose tube. The optical fibers are silicon dioxide optical fibers with coatings. The loose tubes are made of thermoplastic materials. The gaps in the loose tubes are filled with thixotropic filler. An outer wrapping layer comprises a cable wrapping belt, an inner protection sleeve, a steel tape armoring layer and an outer protection cover from inside to outside, wherein the gap in the cable wrapping belt is filled with polypropylene filler. The intelligent optical fiber composite temperature measurement and transmission medium-voltage cable is simple in structure and low in cost.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to an intelligent optical fiber composite temperature measurement transmission medium voltage cable. Background technique [0002] The intelligent optical fiber composite temperature measurement transmission cable is a composite cable used for real-time measurement of the temperature field distribution of the cable. The cable is flame-proof, explosion-proof, corrosion-resistant, anti-electromagnetic interference, high-voltage resistant, and can realize real-time rapid multi-point temperature measurement and positioning, etc. advantage. [0003] The temperature field distribution of the optical fiber is detected through the optical fiber composite temperature measurement cable, and transmitted to the monitoring screen to realize the temperature monitoring of the cable during operation. The temperature measurement device has a set temperature over-temperature alarm, so that the m...

Claims

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Application Information

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IPC IPC(8): H01B9/00H01B9/02H01B7/285G02B6/44
Inventor 李述合张沛瑶李春燕李家起孙永和张冬冬
Owner STATE GRID CORP OF CHINA
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