Learn about all the solar panel cleaning robots available in the USA. Solar panel cleaning robots are ideal for commercial, industrial, and utility-scale solar installations in the United States. Solar panel cleaning robot systems are efficient and reduce hazard risks. Operator fatigue is common in the solar panel cleaning industry, and the use of robots reduces operator fatigue and improves completion times. While most solar panel cleaning robots look similar, they vary significantly from brand to brand.
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Buyer's Guide to Solar Panel Cleaning Robots
SPCF has created the ultimate guide to choosing your solar panel cleaning robot. Send us a message and we will you our complete guide to choosing the right robot for your next solar panel cleaning challenge.
There is a common misconception that solar panels can be ‘turned off’. This is one of the great solar panel cleaning myths.
The DC and/or AC isolator switches found near inverters only stop the electricity flow either into the inverter or from the inverter to the property.
Whichever isolator switch one may decide to turn off, does not affect the electricity being created by the solar panels at roof level.
When solar panel cleaning during the daytime, solar panels will always be live and you’ll always be exposing yourself or your staff to the electrocution risk. Therefore, PPE is always needed when cleaning.
Solar arrays present the risk of shock and electrocution when current takes an unintended path through a human body. Current as low as 75 milliamps (mA) across the heart is lethal. The human body has a resistance of about 600 ohms. Per Ohm’s law, voltage (V) equals current (I) times resistance (R), so V = IR.
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To calculate the amount of current that would course through a person’s body if exposed to 120 V, simply divide 120 V by 600 ohms (I = V/R), which totals 0.2 amps or 200 mA. That’s more than 2.5 times the lethal limit of 75 mA, so protecting yourself and your workers against such an event is critical.
Typically, domestic or residential solar arrays can produce up to 600V and commercial systems can produce up to 1,000V. This means that on domestic solar arrays the electrocution risk can be more than 12 times the lethal limit of 75mA and on commercial systems the electrocution risk can be 20 times the lethal limit of 75mA.
If anyone can provide a sound explanation of why they don’t wear PPE when solar panel cleaning, we’d love to hear it!
Solar panel cleaning carries inherent electrocution risks due to the solar panels always being live during daylight hours. Solar panel installers require extensive training and qualifications in order to install solar panels. It is interesting to note that the vast majority of solar installation is completed whilst the systems are dead. The mounting of solar rail to roofs, panels to rails, joining of DC cable and DC connectors together during the installation process are all done when the system is not live. It is not until the last part of a solar installers work, the final connection, that they are dealing with live electricity.
If a solar installer requires training and qualifications to work on dead solar arrays, logic dictates then that solar panel cleaners, who work on permanently live systems, would require training too. ISCA provide solar panel cleaning training which teaches of the electrical hazards associated with the job and how to mitigate them.
We hope that this article encourages solar panel cleaners to start wearing the correct PPE if they do not do so already. For those who need further encouragement, below you will see GRAPHIC images of low voltage injuries from electrocution. We hope that you do not suffer any kind of injury such as those shown below. We encourage all to research solar panel cleaning thoroughly before cleaning solar panels. Please get the relevant training. Please wear your PPE and you will keep you and your staff safe as you go about your work.
Again, we emphasise that the images shown below are not for the fainthearted.
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