There are two steps here: turning off the PV system and disconnecting the solar panels. Most repair work involves disconnecting the system, whereas a physical move incorporates the second set of instructions. Safety Measures: Wear a hard hat and work boots, if possible. It’s also essential to wear insulating gloves to protect yourself.
Check to see if your system has a disconnect switch. If not, cover the solar panels with a reflective or opaque surface. Use a voltage or multimeter to make sure the voltage measures zero. Disconnect the wires. MC4 connectors make this easy, or you can use a socket wrench. Remove the bolts and clamping devices, if applicable.
Dismount the Solar Panel by Removing Bolts, Screws, and Clamping Nuts: If this is not a portable solar panel and you need to move it, you should remove the bolts, screws, and clamping nuts at the mounting hardware used to fix the panel in place.
For most installations, you will need to turn off the AC disconnect switch from the inverter to the main electrical panel and then the DC disconnect switch from the PV array to the combiner box (if available) or inverter input.
Some places incorporate a solar PV rapid shutdown system. A rapid shutdown is a way to bring the entire system to zero in case of an emergency, such as a fire. These systems can be placed anywhere in the house, as long as it’s not on the roof. In an emergency, press the button located inside the system, and your PV automatically shuts down.
GIZ recommends that only GHS focal persons/certified electrician who have been trained to work at heights conduct all solar system maintenance at height. 1. Clean solar panel with soft cloth or soft mop and water anytime it is dirty. Do this when panels are cool and do not use soap/detergent for cleaning.