Copper wire shielded medium voltage optical compound rope and screening device in smart power grids

A technology of shielding device and copper wire, applied in the direction of power cable with shielding layer/conductive layer, power cable, cable/conductor manufacturing, etc. Large and other problems, to achieve the effect of rapid diagnosis and elimination of hidden troubles, rapid isolation of faults, and small stress

Active Publication Date: 2012-12-26
JIANGSU HENGTONG POWER CABLE +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

More than 70% of the cable fires caused very serious losses, and 40% of the fire accidents caused extraordinarily large losses
The disadvantage of adding bare optical fiber on the insulating shielding surface is that the cable terminal and connector optical fiber are not protected, and the attenuation is prone to be too large; the other is added in the multi-core filling gap, because it is far away from the insulator, the temperature measurement accuracy is relatively poor

Method used

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  • Copper wire shielded medium voltage optical compound rope and screening device in smart power grids
  • Copper wire shielded medium voltage optical compound rope and screening device in smart power grids
  • Copper wire shielded medium voltage optical compound rope and screening device in smart power grids

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with accompanying drawing and embodiment:

[0027] like figure 1 The copper wire shielded medium-voltage optical fiber composite cable shown in the smart grid includes a cable core and an outer sheath 9 covering the outside of the cable core. Wherein: the cable core includes a conductor 1, a conductor shielding layer 2, an insulating layer 3, an insulating shielding layer 4, and a semiconductor buffer layer tape 5 that are sequentially coated on the outside of the conductor 1, and copper wires 6 are evenly wound around the semiconductor buffer layer tape 5. and the metal temperature measuring optical unit 7 , the copper wire 6 and the metal temperature measuring optical unit 7 are covered with a copper strip 8 .

[0028] like figure 2 As shown: the metal temperature measuring optical unit 7 includes a temperature measuring optical fiber 70, a fiber paste 71, and a stainless steel tube 72 coat...

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Abstract

The invention relates to a copper wire shielded medium-voltage optical fiber composite cable and a shielding device for a smart grid. The composite cable includes a conductor, a conductor shielding layer, an insulating layer, an insulating shielding layer, a semiconductive buffer layer, copper wire, and a metal temperature measuring optical unit. , copper belt, outer sheath, metal temperature measuring optical unit including optical fiber, fiber paste, stainless steel tube; Pay-off stand, cage-type automatic back-twist pay-off stand, metal temperature measuring optical unit can be fully back-twisted, automatic pay-off, and finally achieve the purpose of accurate temperature measurement of each transmission conductor, achieve real-time monitoring of cable operation, and real-time control of power grid operation status, quickly diagnose and eliminate potential faults; with as little manual intervention as possible, quickly isolate faults, self-recovery, avoid large-scale power outages, and ensure the power supply security of the main line.

Description

technical field [0001] The invention relates to the field of electric power manufacturing technology and shielding equipment design, in particular to a copper-wire-shielded medium-voltage optical fiber composite cable for smart grids and a shielding device for sparsely winding the copper wire and metal temperature-measuring light unit in the fiber-optic composite cable. Background technique [0002] In recent years, cable fire accidents have occurred frequently. According to relevant statistics, in the past 20 years, there have been more than 140 cable fires in thermal power plants in my country. There were 2 or more cable fire accidents in 24 power plants, and 4 to 6 accidents in individual power plants. The losses caused by more than 70% of cable fires are very serious, and 40% of the fire accidents cause extraordinarily large losses. According to incomplete statistics, the direct and indirect economic losses caused by power cable accidents in the domestic power industry ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B9/00H01B9/02H01B13/00H01B13/26
Inventor 施学青鲍继聪乔新霞马军
Owner JIANGSU HENGTONG POWER CABLE
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