Precautions for Cleaning Photovoltaic Modules
Release time:
Dec 20,2024
When cleaning photovoltaic modules, the following points need to be noted:
Choose the right cleaning time: To avoid the risk of electric shock to personnel and potential damage to the modules caused by wiping them under high temperatures and strong sunlight, staff generally choose to clean the modules in the morning or later in the afternoon.
Safety check: Before cleaning the modules, check the monitoring records for any abnormal power output, analyze whether it may be caused by leakage, and inspect the connection wires and related components for any damage or adhesion. Additionally, use a voltage tester to test the aluminum frame, brackets, and tempered glass surface of the modules to eliminate leakage hazards and ensure personal safety.
Use appropriate tools and cleaning agents: Soft cloths or sponges should be chosen as tools, avoiding hard brushes or sharp tools to prevent scratching the surface of the photovoltaic modules. Mild cleaning agents should be selected and used according to the instructions, avoiding chemical cleaners to prevent damage to the surface of the photovoltaic modules. Note weather conditions: It is strictly prohibited to clean photovoltaic modules under windy, rainy, thunderstorm, or heavy snow conditions. In winter, avoid rinsing to prevent freezing due to low temperatures, which can cause dirt accumulation; similarly, do not rinse with cold water when the panels are very hot.
Keep dry: After cleaning, immediately wipe the surface of the photovoltaic modules dry with a clean cloth to ensure it is dry. During installation, also ensure that there are no water droplets or damp traces on the surface of the photovoltaic modules.
General sweeping: Use a dry professional mop to sweep away attachments on the surface of the modules, such as dry floating dust and leaves. For hard foreign objects tightly attached to the glass, such as dirt, bird droppings, or sticky substances, a slightly hard scraper or gauze can be used for scraping, but care must be taken not to use hard materials to scrape to avoid damaging the glass surface.
Rinsing and cleaning: For substances tightly attached to the glass, such as residues of bird droppings, plant sap, or wet soil that cannot be swept away, cleaning is required. The cleaning process generally uses clean water, combined with a flexible brush for removal. For oily dirt, relevant solvents such as dishwashing liquid or soapy water can be used for separate cleaning of the contaminated area.
By following these precautions and methods, the performance and efficiency of photovoltaic modules can be effectively maintained, ensuring their long-term stable operation and maximizing power generation benefits.
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