logoalt Hacker News

namibj • yesterday at 10:57 PM • 0 replies • view on HN

If you can stay there (no evacuation for building doesn't seal enough to make it habitable), most of the solar should have survived. Moving a broken panel out of the way and swapping one from the end of the array in to make the cables fit, or even having a spare jumper cable to swap in place of a broken panel, is quite easy to do. Mostly just make sure there's no load current at all on the string when you disconnect the MC4 connector with the special tool that keeps uneducated people from unplugging them under load and getting greeted with a persistent low current (not "arc flash", we're in the region of "high powered welder used with just normal welding PPE") DC arc (that may supply several hundred volts for a long drawn out burn). As long as it's around substantially below 500 mA you're not gonna sustain an arc.