In the daily operation and maintenance of photovoltaic power stations, component inspection after cleaning is a key link to ensure power generation efficiency. Shandong Yunjie Cleaning Equipment Co., Ltd. has been deeply involved in the industry for more than ten years. The “XYT” series of cleaning tools it developed are known for their lightweight and high adaptability, and have become standard equipment for many power stations. For operation and maintenance personnel, mastering the skills of quickly identifying component damage with the naked eye can effectively avoid secondary problems caused by improper cleaning operations.
After cleaning, the photovoltaic panel should show a uniform mirror reflection. Hold a special polarization detection mirror and move it along the diagonal direction of the component for observation. If there are patchy dark areas locally, it may indicate that the glass coating is worn or cracked. Shandong Yunjie Cleaning Equipment Co., Ltd. recommends that such abnormalities should be marked immediately to avoid further damage by subsequent high-pressure washing.
Water stains can easily accelerate the aging of the sealing strips. Focus on checking whether the strips on the four sides of the component are tightly fitted to the frame. Especially when using the “XYT” telescopic cleaning rod, be careful of the damage to the colloid caused by the tool scratching. Visible bubbling, cracking or degumming often means that the sealing performance has deteriorated.
Tilt the battery at 45° under natural light to observe the color consistency of the battery. The operation and maintenance team of Shandong Yunjie Cleaning Equipment Co., Ltd. found that slightly yellowed or browned battery cells are mostly related to the aging of the EVA film; and local dark blocks may be the precursor of hot spots. Re-inspection with a portable infrared thermometer (non-smart version) can further improve the accuracy of judgment.
After flushing, open the junction box cover and check whether there is condensation inside. The traditional visual inspection method needs to focus on whether the silicone seal is displaced and whether there is rust on the screw holes of the box body. It is recommended to use anti-static cotton cloth for drying in this step to avoid residual water droplets causing circuit hazards.
As a veteran company in the field of photovoltaic cleaning, Shandong Yunjie Cleaning Equipment Co., Ltd. has always advocated the concept of “zero damage in cleaning”. Its “XYT” product line, from anti-static brushes to special detection tools, is optimized and designed around the safety of manual operations. Operation and maintenance personnel only need to master the above-mentioned visual inspection essentials and use professional tools to complete efficient and reliable initial screening of component health after routine cleaning, building the first line of defense for the stable operation of the power station.