CN100461571C - Method for power supply utilizing metal conducting wire and optical fiber mix cable - Google Patents
Method for power supply utilizing metal conducting wire and optical fiber mix cable Download PDFInfo
- Publication number
- CN100461571C CN100461571C CNB2006101041822A CN200610104182A CN100461571C CN 100461571 C CN100461571 C CN 100461571C CN B2006101041822 A CNB2006101041822 A CN B2006101041822A CN 200610104182 A CN200610104182 A CN 200610104182A CN 100461571 C CN100461571 C CN 100461571C
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- CN
- China
- Prior art keywords
- cable
- optical fiber
- power supply
- photelectric receiver
- electric switch
- 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.)
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Abstract
This invention relates to a method for supplying utilizing mixed cables of metal leads and fibers, which is used in transmiting electric energy and optical signals, especially transmitting cable fire signals to control fire by photoelectric control, in which, single-mode fiber of glass fiber or plastic fiber is applied for fibers of the cable, apart from a traditional electric switch for turning on/off a circuit, a photoelectric test and protection device is set for stopping fire of cables at the supply end.
Description
Technical field
The present invention relates to a kind of method of utilizing the power supply of plain conductor and optical fiber mix cable, this method is used for electric energy transmitting and light signal, and especially the transmission cable signal that catches fire can prevent cable fire to take place by photo-electric control.
Technical background
In the prior art; though can select for use flame retardant cable to prevent that cable fire from taking place; but often do not reach its purpose in actual applications; reason is ignition of cable arc discharge often; only depend on that cable material is fire-retardant not to have an effect, existing power supply protection does not have protective effect to ignition of cable yet simultaneously.The fire disaster that ignition of cable takes place in reality production and life is of common occurrence, and especially ignition of cable causes gas, coal-dust explosion easily under the coal mine.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, adopt a kind of by plain conductor and optical fiber mix cable power supply, utilize this cable signal that can not only electric energy transmitting can also transmitting optical signal, especially transmission cable catches fire, prevent ignition of cable by photo-electric control.
The scheme of technical solution problem of the present invention is: adopt plain conductor and optical fiber mix cable power supply in electric power system, the optical fiber of this cable adopts monomode fiber, be glass optical fiber of the prior art or plastic fiber, at power supply end except being provided with the electric switch that is used for make-and-break contact of the prior art, also be provided with the Photoelectric Detection and the protective device that are used for preventing ignition of cable, when the control of ignition of cable by Photoelectric Detection and protective device, disconnect electric switch, play the effect of preventing ignition of cable; Specifically there are two kinds of schemes to realize, first kind of scheme is: adopt the single-core fiber detection streamer signal that catches fire, plain conductor in the cable links to each other with electric switch, optical fiber in the cable links to each other with photelectric receiver, when the cable breaking out of fire produced strong flame, the light that flame sends passed to the photelectric receiver of power supply end by optical fiber, by the amplification and the control of photelectric receiver, make the electric switch outage of power supply end, stop to cable power supply; Second kind of scheme is: adopt the two core fibre detection streamers signal that catches fire, plain conductor in the cable links to each other with electric switch, an optical fiber in the cable links to each other with photoemitter, another root optical fiber in the cable links to each other with photelectric receiver, make described two optical fiber constitute the closed-loop path at the cable least significant end with optical fiber pigtail, during operate as normal, the light that photoemitter sends is through the closed-loop path of described two optical fiber, turn back to photelectric receiver, electric switch does not disconnect, when the cable breaking out of fire produces strong flame, the high temperature of flame blows optical fiber, and the photelectric receiver of power supply end does not receive the light signal that photoemitter sends, by the amplification and the control of photelectric receiver, make the electric switch outage of power supply end, stop to cable power supply.Photoemitter and photelectric receiver are formulas modulation system or non-modulation.
Because the present invention has adopted such scheme, when ignition of cable takes place,, stop to cable power supply by photoelectric eye auto power off electric switch, prevented the generation of cable fire.
Description of drawings
For the ease of understanding structure of the present invention and implement best mode of the present invention, below, the present invention is further described in conjunction with the accompanying drawings.
Fig. 1 is power supply of the present invention's first scheme and photoelectric protective system figure
Fig. 2 is alternative plan power supply of the present invention and photoelectric protective system figure
Embodiment
Electric switch is the switch that prior art is used for being switched on or switched off circuit in Fig. 1, according to the character of circuit difference single-phase, three-phase is arranged, and alternating current switch and direct current switch are also arranged.Photelectric receiver in Fig. 1 can also can oneself design with approved product.By the cable of plain conductor and fiber mix, plain conductor is used for electric energy transmitting, and optical fiber is used for transmitting optical signal, specifically is the transmission cable signal that catches fire.System is composed as follows: by the cable of plain conductor and fiber mix, the plain conductor in the cable links to each other with electric switch, and the optical fiber in the cable links to each other with photelectric receiver, and photelectric receiver and electric switch are put together.
Electric switch is identical with Fig. 1 in Fig. 2.System is composed as follows: by the cable of plain conductor and fiber mix, plain conductor in the cable links to each other with electric switch, an optical fiber in the cable links to each other with photoemitter, and another root optical fiber links to each other with photelectric receiver, with optical fiber pigtail two optical fiber is constituted the closed-loop path at optical fiber connector.Photoemitter and photelectric receiver are formulas modulation system or non-modulation.
Action principle of the present invention is as follows:
For scheme one, when the cable breaking out of fire produces strong flame, the light that flame sends passes to the photelectric receiver of power supply side by optical fiber, and by the amplification and the control of photelectric receiver, the electric switch outage stops cable power supply, prevents cable fire.
For scheme two, during operate as normal, the light that photoemitter sends is through the closed-loop path of two optical fiber, turn back to photelectric receiver, mains switch does not disconnect, and when the cable breaking out of fire produces strong flame, the high temperature of flame blows optical fiber, the photelectric receiver of power end does not receive light signal, perhaps do not receive the light signal of being launched,, make the outage of power supply power switch by the amplification and the control of photelectric receiver, stop cable power supply, prevent cable fire.
Claims (2)
1. method of utilizing the power supply of plain conductor and optical fiber mix cable, it is characterized in that: in electric power system, adopt plain conductor and optical fiber mix cable power supply, the optical fiber of this cable adopts monomode fiber, be glass optical fiber of the prior art or plastic fiber, at power supply end except being provided with the electric switch that is used for make-and-break contact of the prior art, also be provided with the Photoelectric Detection and the protective device that are used for preventing ignition of cable, when the control of ignition of cable by Photoelectric Detection and protective device, disconnect electric switch, play the effect of preventing ignition of cable; Specifically there are two kinds of schemes to realize, first kind of scheme is: adopt the single-core fiber detection streamer signal that catches fire, plain conductor in the cable links to each other with electric switch, optical fiber in the cable links to each other with photelectric receiver, when the cable breaking out of fire produced strong flame, the light that flame sends passed to the photelectric receiver of power supply end by optical fiber, by the amplification and the control of photelectric receiver, make the electric switch outage of power supply end, stop to cable power supply; Second kind of scheme is: adopt the two core fibre detection streamers signal that catches fire, plain conductor in the cable links to each other with electric switch, an optical fiber in the cable links to each other with photoemitter, another root optical fiber in the cable links to each other with photelectric receiver, make described two optical fiber constitute the closed-loop path at the cable least significant end with optical fiber pigtail, during operate as normal, the light that photoemitter sends is through the closed-loop path of described two optical fiber, turn back to photelectric receiver, electric switch does not disconnect, when the cable breaking out of fire produces strong flame, the high temperature of flame blows optical fiber, and the photelectric receiver of power supply end does not receive the light signal that photoemitter sends, by the amplification and the control of photelectric receiver, make the electric switch outage of power supply end, stop to cable power supply.
2. by the described a kind of method of utilizing the power supply of plain conductor and optical fiber mix cable of claim 1, it is characterized in that: photoemitter and photelectric receiver in second kind of scheme are formulas modulation system or non-modulation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2006101041822A CN100461571C (en) | 2006-08-04 | 2006-08-04 | Method for power supply utilizing metal conducting wire and optical fiber mix cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2006101041822A CN100461571C (en) | 2006-08-04 | 2006-08-04 | Method for power supply utilizing metal conducting wire and optical fiber mix cable |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101022214A CN101022214A (en) | 2007-08-22 |
CN100461571C true CN100461571C (en) | 2009-02-11 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNB2006101041822A Expired - Fee Related CN100461571C (en) | 2006-08-04 | 2006-08-04 | Method for power supply utilizing metal conducting wire and optical fiber mix cable |
Country Status (1)
Country | Link |
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CN (1) | CN100461571C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102263437B (en) * | 2011-04-25 | 2013-11-06 | 北京中科海通科技有限公司 | Intelligent electricity grid |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988008217A1 (en) * | 1987-04-14 | 1988-10-20 | Strömberg Oy | An arc relay |
US4878144A (en) * | 1987-10-09 | 1989-10-31 | Merlin Gerin | Solid-state trip device of a molded case circuit breaker |
WO2000016146A1 (en) * | 1998-09-11 | 2000-03-23 | Pavel Kupilik | Optic fibre cable |
CN2559081Y (en) * | 2002-06-29 | 2003-07-02 | 江苏亨通光电股份有限公司 | Optical fibre compounded power electric cable |
CN2689262Y (en) * | 2004-04-10 | 2005-03-30 | 江苏长飞中利光纤光缆有限公司 | Optical fiber cables with power line in center |
-
2006
- 2006-08-04 CN CNB2006101041822A patent/CN100461571C/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988008217A1 (en) * | 1987-04-14 | 1988-10-20 | Strömberg Oy | An arc relay |
US4878144A (en) * | 1987-10-09 | 1989-10-31 | Merlin Gerin | Solid-state trip device of a molded case circuit breaker |
WO2000016146A1 (en) * | 1998-09-11 | 2000-03-23 | Pavel Kupilik | Optic fibre cable |
CN2559081Y (en) * | 2002-06-29 | 2003-07-02 | 江苏亨通光电股份有限公司 | Optical fibre compounded power electric cable |
CN2689262Y (en) * | 2004-04-10 | 2005-03-30 | 江苏长飞中利光纤光缆有限公司 | Optical fiber cables with power line in center |
Also Published As
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CN101022214A (en) | 2007-08-22 |
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Granted publication date: 20090211 Termination date: 20110804 |