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LiaoningDanengElectricCo.,Ltd.(StockCode:832107)isaleadinghigh-techenterpriseintegratingR&D,design,production,salesandconstructionofelectricpowerInternetofthings. 

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ThecompanyhascompletequalitymanagementsystemcertificationandLiaoningProvincesafetytechnologypreventionfacilitiesdesignandconstructionqualification,constructionintelligentengineeringprofessionalcontractingqualification,fire-fightingfacilitiesengineeringprofessionalcontractingqualification,installation(repair)powerfacilitieslicenseandotherqualifications,andcanundertakeallkindsofrelatedprojects.Wecustomizecomprehensivesolutionstomeettheneedsofdifferentusers.

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Thecompany'sbusinesscoverspower,petroleumandpetrochemical,urbansecurity,communications,highwaytunnels,coalmines,intelligentbuildingsandotherfields.

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ThecompanyhascompletequalitymanagementsystemcertificationandLiaoningProvincesafetytechnologypreventionfacilitiesdesignandconstructionqualification,constructionintelligentengineeringprofessionalcontractingqualification,fire-fightingfacilitiesengineeringprofessionalcontractingqualification,installation(repair)powerfacilitieslicenseandotherqualifications,andcanundertakeallkindsofrelatedprojects.Wecustomizecomprehensivesolutionstomeettheneedsofdifferentusers.

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ThecompanyprovidesaseriesofcompleteandadvancedpowerandpublicfacilitiescomprehensivesolutionsforvariousapplicationscenariosofStateGrid,ChinaSouthernPowerGrid,ShenyangMetro,ShenyangTaoxianAirportandotherenterprises

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Thecompanyhasbeenadheringtotheconceptof"R&Dinnovation,excellentquality,professionalservice",adheretotheresponsibilityofleadingthemarket,andconstantlyestablishthecoreadvantagesofthecompany'sproducts

 

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In this era of rapid development of science and technology, optical fiber sensing technology as a branch of high technology is also moving forward

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Monitoring and warning system for safety environment of cable tunnel

2020-03-25

   In the electric power industry, aging and overheating of high-voltage cables and cable joints are very easy to cause failures, even lead to major accidents. However, the environment of cable tunnel, cable well, cable trench and other places is complex, and there are many factors that are easy to induce accidents. In order to avoid the occurrence of malignant accidents, it is necessary to carry out real-time monitoring on the high-voltage cables and the laying places. High voltage cable and cable tunnel monitoring system is a set of early warning system to protect the normal operation of high voltage cable and cable joints. With advanced microprocessor as the control core, high-performance sensor and optical fiber as the power and communication carrier, it can monitor the cable temperature, ambient temperature and humidity, water level, smoke, harmful gas, combustible gas, etc. in the cable tunnel; it can also supply power and transmit information through photoelectric composite cable, and realize the fan, water pump and lighting system according to the user's requirements Remote control of image acquisition system. The system can effectively early warn the accidents caused by the aging and overheating of high-voltage cables and cable joints in cable tunnels, cable wells and cable trenches, and at the same time monitor the environmental factors that are easy to cause accidents in real time, so as to provide a strong guarantee for the safe operation of on-site equipment.



Advantages of the system:
  The integrated monitoring system of cable channel environment can effectively monitor the environmental parameters in the power channel, ground circulation, cable temperature, electronic well cover, harmful gases (carbon monoxide, hydrogen sulfide, methane, etc.), air oxygen content, water level, etc., timely discover the location of the hidden danger point, water number value, gas composition content, etc., and report and record the original data. At the same time, the system itself has linkage function. When the content of harmful gas, water accumulation and environmental temperature and humidity in the channel exceed certain standards, the exhaust and drainage devices will be automatically started for ventilation and drainage operation, providing comprehensive technical guarantee for the safe and reliable operation of power cables, improving the operation environment of power channels, and ensuring the safety and stability of power cables in the channel Regular operation is of great significance.

Technical features:
1、Realize accurate and timely early warning and alarm, and eliminate potential safety hazards of integrated pipe gallery
2、 Intelligent linkage control, second level response, control of all access devices

3、 Integrate multiple protocols to realize real-time data acquisition, with the fastest acquisition cycle of 200ms

4、The combination of 2D GIS map and 3D virtual scene can clearly show the details and operation status of the pipe network, making the monitoring easier

5、Configuration monitoring, building block development, rich special elements for pipe gallery, flexible customization of real-time monitoring screen

6、Open platform, industry standard interface, seamless integration with third-party data

7、Big data cloud analysis service to realize the rule of equipment operation state and fault analysis

8、Conduct space threat situation analysis such as fire and explosion in three-dimensional space, and simulate various emergency plans to prevent accidents before they occur