I got to play electrician today. The disconnect switch for my pole mounted solar array has a KO mounted lightning arrestor. It has a plastic body and it broke at the nipple, somehow. This left a hole for snow to blow into the switch. I thought about just removing it and plugging the hole since my area, being near the coast, averages like two lightning strikes per year. But it was a relatively cheap part.
This system was DIY'd by the previous owner. They chose to connect the lightning arrestor to the line side of the disconnect switch, so I couldn't just open the switch and safely replace it. I waited for an overcast day when the panels were covered with snow, went up the ladder and separated the PV panel connectors going from the last panel to the switch. They are MC3 type, so no tool needed which was nice.
Other than that it was a straight forward job. The hardest part was telling my engineer brain to ignore all the code violations and put it back the way it was because its been working fine for 20 years. How many can you spot?
#solar #diy #electrician