Transcript
Module Cleaning Guidelines Please take note: -
Please adhere to local work safety conditions if applicable Please do not touch any exposed cables or connectors if found. Please do not dismantle the modules or damage any labels. Please do not step on or roughly handle the modules. Please do not use sharp tools or abrasive materials during cleaning (E.g. blades, steel wool) Please do not touch or handle the glass surface of modules with bare hands, clean gloves should be used. Please clean the modules with clean water, glass cleaners may be used. (E.g. absolute ethyl alcohol) Please do not use abrasive powders, abrasive cleaners, scrubbers, polishers, sodium hydroxide, benzene, nitro-thinners, acid or alkali or other chemical substances. Please do not use steam or any other corrosive agents to speed up the cleaning process.
Best time to clean: Module cleaning should be done at times of low irradiance. (E.g. Early morning, in the evening, at night or on a cloudy day) Cleaning Steps: [Step 1: Whisking] Modules should be whisked with a dry whisk or cloth in order to clean away deposits on the modules’ surfaces that can be easily removed (E.g. Dust and leaves.) [Step 2: Washing and Wiping] Substances such as thick dust deposits (that cannot be whisked away), plant branches, leaves or bird droppings on the module surface can be removed by washing and wiping. Clean with water should be applied onto the affected area followed by wiping off with a soft brush or soft cloth. (E.g. woolen brush) Oily substances can be removed by applying absolute ethyl alcohol or other glass cleaning solvents, followed by wiping off with a soft brush or soft cloth. (E.g. woolen brush) Additional details: a) b) c) d) e) f) g)
Water pH： 5 – 8 Chloride and Salinity: 1,000 - 3,000 mg/l Turbidity： 15~30 NTU’S Specific conductance (EC)： 1500~3000 μs/cm Total dissolved solids (TDS): ≤1000 mg/L Water Hardness—calcium and magnesium ions: 20-40 mg/L Biochemical oxygen demand (BOD): ≤6mg/L （4 class criteria water）
* Trina modules can withstand up to pressures of 2400Pa
Estimates on Water Usage: *Please note that actual total water consumption may vary
Manual Cleaning (One time cleaning of 10MW Site) Water Usage is >10 tons
Automated Cleaning system (One time cleaning of 10MW Site) Water Usage is between 60 – 70 tons
Vehicle Cleaning (One time cleaning of 10MW Site) Water Usage is up to 50 tons
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