Routine cleaning can be divided into ordinary sweeping and rinse cleaning. For ordinary cleaning, a small dry broom or rag is used to sweep off the adherents such as dry floating dust and leaves on the surface of the components.
For hard foreign matter such as mud, bird droppings and sticky objects attached to the glass, a slightly harder scraper or gauze can be used to scrape the surface, but care should be taken not to use hard materials to scrape to prevent damage to the glass surface. To clean the effect to see whether to rinse cleaning.
For objects that cannot be swept away, such as staining substances such as bird droppings, plant sap, etc. or wet soil, which are closely attached to the glass, cleaning is necessary. The cleaning process generally uses water with flexible brushes to remove. If you encounter oily dirt, etc., you can use detergent or soapy water, etc. to clean the contaminated area separately.
Attention：
(1) to prevent the cleaning process because of artificial shadows bring photovoltaic array power generation loss, or even the occurrence of hot spot effect.
(2) at noon or when the light is good module surface temperature is quite high, to prevent cold water on the glass surface caused by glass or module damage
(3) to protect the safety of cleaning personnel. Also in the morning and evening cleaning, you need to choose the time period of dark and weak sunlight to reduce the safety risks. You can also consider that cleaning can also be done in sometimes cloudy and rainy weather, when the cleaning process will be relatively efficient and thorough because of the help of precipitation.
