In the journey of the power system to a higher level of "credible interconnection, safe interaction, intelligent defense" goal, overhead transmission lines as the skeleton of the grid, its daily safety protection and efficient operation and maintenance has become an important link that can not be ignored. Facing the complex and changing external environment, transmission lines are faced with multiple hidden dangers such as mountain fires, construction damages, meteorological disasters and so on.

The following are some common overhead transmission line hazards:

1. "Three-span" hazard: refers to the overhead transmission line sections crossing high-speed railroads, highways and important transmission corridors. In order to prevent accidents such as fallen towers and broken lines, special design and operation and maintenance measures are required, such as increasing the structural strength of the tower, using independent tension-resistant segments, and restricting the spanning method.

2、山火隱患：在山火高發(fā)區(qū)域，輸電線路可能因樹木接觸而引發(fā)山火，需要定期清理線路下面的植被，并采用山火監(jiān)測(cè)技術(shù)進(jìn)行實(shí)時(shí)監(jiān)控。

3, underline construction damage potential: underline engineering construction may cause external damage to the transmission line, the need to coordinate with the construction side to ensure safe construction distance, but also to take the necessary protective measures is very important.

4,Meteorological Disasters: such as high winds, heavy rain, ice, snow loads and other meteorological conditions may cause line failure, the need to install micro-meteorological monitoring equipment, timely access to meteorological information, and according to the situation to take countermeasures.

5, external damage: including theft, illegal construction, traffic accidents, etc., need to strengthen the line patrol, timely detection and treatment of external damage.

6, Foreign objects on the line: kites, plastic sheeting, tin foil strips, dust nets, tree branches and other foreign objects hanging in the transmission line, may cause tripping accidents, the need for regular patrol lines, clean up foreign objects in a timely manner, and take precautions.

7. Tree Barrier Hazard: Trees grow too fast and may be close to or touch the transmission lines, so regular tree trimming is needed to maintain a safe distance.

8. Technical failures: including insulator damage, aging of the gold, etc., requiring regular inspection and maintenance of line equipment.

9. Bird damage: Birds nesting near transmission lines may cause short circuits or ground faults.

Comprehensive online monitoring device for transmission lines

These hidden dangers not only threaten the stable operation of the power grid, but also have a potential impact on social and economic development and people's lives. Therefore, strengthening the comprehensive control and informationized intelligent management of transmission lines has become an urgent need for the transformation and upgrading of the electric power industry.

With its profound technical accumulation and innovative spirit, our company launched DX-WPS100-SP3 Transmission Line Comprehensive Online Monitoring Device, which is a comprehensive online monitoring device for power transmission lines. rgb(255, 0, 0);">Transmission Line Comprehensive Online Monitoring Device, this mature product provides strong technical support for the safety protection and intelligent management of transmission lines. The device to "comprehensive perception, intelligent early warning, efficient disposal" as the core design concept, integrated video surveillance, image monitoring, anti-fire monitoring, laser anti-external breakage monitoring, micro-weather monitoring, ice monitoring, tower tilt detection, wire clip temperature measurement, dance monitoring, arc droop monitoring, bolt loosening monitoring, stress monitoring, and many other advanced monitoring unit (optional), support hidden danger identification, monitoring data through 4G/5G/WIFI/OPGW fiber optic and other communication channels real-time transmission to the monitoring center analysis, the user can receive and view at any time through cell phones, computers. In addition, the comprehensive online monitoring device for transmission lines supports access to the monitoring platform of the South China Grid, State Grid and other provincial power companies, realizing all-round, all-weather, high-precision monitoring of various types of hazardous sources in the transmission line channel.