Warning method for cable external damage protection and acousto-optic warning device for cable external damage protection
A warning device, sound and light alarm technology, applied in the direction of alarms, electrical transmission signal systems, instruments, etc., can solve problems such as power outages, cable digging, etc.
Pending Publication Date: 2021-03-30
FUXIN POWER SUPPLY COMPANY STATE GRID LIAONING ELECTRIC POWER +1
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Problems solved by technology
[0003] The purpose of the present invention is to solve the problem that the construction team digs the ground because they do not know that there are underground cables buried in the construction site, and the cable is dug up by mistake during the construction process, resulting in a power failure. Anti-cable breakout sound and light warning device
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[0018] As shown in the figure, the anti-cable external breakage sound and light warning device of the present invention includes a buried cable protection tube 1 and a buried cable 2, and a built-in optical fiber 5 is laid below the ground surface above the buried cable 2 and parallel to the buried cable. The protection tube 4, the path of the protection tube 4 is consistent with the buried cable 2, and the safety distance of 30-70cm is kept between the protection tube 4 and the buried cable, and the number of the 5 optical fibers is the same as that of the 2 buried cables. Corresponding to the first end of each optical fiber 5 under the surface, an optical fiber red light pen 3 is arranged, and a photoelectric switch 6 is arranged at the end of each optical fiber 4 below the ground surface. The model of the photoelectric switch is e3f1-20c1, and the optical fiber red light pen 3 The power line of the photoelectric switch 6 is drawn to the ground through the overcoat protection...
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The invention discloses a warning method for cable external damage protection and an acousto-optic warning device for cable external damage protection. A construction team mistakenly breaks a cable ina construction process to cause power failure due to the fact that the construction team does not know that the underground cable is buried under a construction site when digging the ground. With themethod and device adopted, the above problem can be solved. A protection pipe internally provided with optical fibers is laid above a buried cable under the ground surface in a direction parallel tothe buried cable; the path of the protection pipe is consistent with that of the buried cable; optical fiber red laser pointers are arranged under the ground surface and correspond to the head ends ofthe optical fibers; photoelectric switches are arranged under the ground surface and correspond to the tail ends of the optical fibers; power lines of the optical fiber laser pointers and the photoelectric switch are led out to the ground surface through outer sleeve protection tubes to be connected with a solar cell or a storage battery fixed to a corresponding electric pole; the electric pole is provided with an on-site audible and visual alarm and a 4G module which are controlled by output signals of photoelectric switch signal lines; and a far-end server, a large-screen display and a remote audible and visual alarm are arranged in an alarm receiving duty room.
Description
technical field [0001] The invention relates to the field of cable protection, in particular to a warning method for preventing external breakage of cables and an acousto-optic warning device for preventing external breakage of cables. Background technique [0002] After entering the modern society, due to the shortage of urban land, heavy traffic pressure and city appearance construction, large cities generally adopt underground cable transmission methods. Compared with overhead lines, buried cables have the advantages of small footprint, reliable power transmission, and strong anti-interference ability. In order to prevent the buried cables from breaking out, warning signs are usually installed on the main road surface. Most of the areas where the cables are laid do not have warning signs, so that the construction team does not know that there are power cables buried underground. During the construction process, excavators, etc. will be used. equipment, often causing dama...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G08B21/24G08B7/06G08B25/08
CPCG08B7/06G08B21/24G08B25/08
Inventor 陈慧聪贾依宁刘博于浩张浩刘尚坤李璐
Owner FUXIN POWER SUPPLY COMPANY STATE GRID LIAONING ELECTRIC POWER