Weather Threats? When considering weather-related hazards to power lines, many people tend to focus solely on extreme weather events with dramatic impacts—such as heavy snowfall and freezing rain—while often overlooking the gradual wear and tear caused by everyday changes in weather conditions, such as sunshine, cloud cover, cold, and warmth. High-voltage transmission lines span mountainous terrain, open fields, and windy areas near bodies of water, remaining completely exposed to the natural environment year-round. Ordinary strong winds, prolonged rainy spells, dense mountain fog, and daily temperature fluctuations may seem unremarkable, but over time, they gradually erode the line equipment, creating potential hazards for future failures.
Prolonged strong winds constantly shake and tug at the conductors, subjecting the cables to chronic fatigue. As a result, the fasteners on the towers gradually loosen, and the widespread swaying of the lines can easily lead to phase-to-phase collisions and short circuits. Thick fog and rain carry dust that adheres to the surface of the insulators, causing their insulating properties to steadily deteriorate, which leads to frequent electrical leaks, flashovers, and circuit breaker trips. Previously, severe convective weather struck many regions during spring and summer. Localized, sudden gusts of wind swept up debris that became entangled in the conductors, forcing the temporary shutdown of multiple mountainous power lines within a short period and causing regional power outages.
In addition, the alternating hot and cold temperatures cause the conductors to repeatedly expand and contract, leading to premature aging, while sudden weather changes can trigger secondary issues such as ice buildup and foreign objects becoming entangled in the lines. Manual inspections can only be conducted at fixed locations and at regular intervals; they cannot keep pace with the rapidly changing local microclimates. As a result, when failures occur, emergency repairs are the only option, making it difficult to mitigate risks in advance.
To address the issue of delayed weather forecasting at its root, it is necessary to install dedicated micro-weather monitoring stations on utility poles to accurately capture the local climate conditions along individual sections of the power lines. Dingxin Smart Technology’s High-Precision Power Meteorological Monitoring System DX-WPS100-QX uses an integrated sensor array to simultaneously collect multi-parameter meteorological data, including temperature, humidity, wind direction, wind speed, precipitation, atmospheric pressure, and solar radiation. Once the data is transmitted to the processing unit, the system automatically filters out environmental noise interference, performs in-depth computational analysis and organization, and uploads the standardized data in real time to the backend control center.
At the same time, staff members use real-time weather updates to develop contingency plans in advance for wind, fog, and freezing conditions, thereby minimizing the damage caused by severe weather. The meteorological records accumulated over the years can also be used for post-disaster analysis and repairs, while providing detailed data support for selecting new route locations and optimizing line operation and maintenance plans.
The device’s data collection mechanism is flexible and adaptable, offering two modes: automatic scheduled collection and remote command-controlled collection. The collection interval can be shortened to as little as 3 minutes; by default, data is uploaded once every hour on the hour. The system can also simultaneously monitor the device’s power supply voltage, ensuring constant oversight of the device’s operating conditions. Equipped with a built-in intelligent validation algorithm, the system automatically identifies invalid or anomalous data and converts raw sample values into intuitive, easy-to-understand meteorological indicators. The local storage capacity can retain over 90 days of historical data on a循环 basis.
In addition, the communication protocol is fully compliant with the standards and specifications of State Grid and China Southern Power Grid, allowing operations and maintenance personnel to remotely synchronize the time and restart devices, as well as remotely modify parameters such as the sampling interval, IP address, and APN via text message. The devices are protected by password encryption and support remote firmware upgrades; field technicians can also use short-range wireless channels to debug various device functions on-site.
