I attempted to replace three single pole light switches today, in a triple box. I’ve never seen switches wired like this before and I’m wondering if it’s safe. (I also have no idea how this could possibly work, but it’s been this way for 14 years, so it must). They had a single ground wire that wrapped around each switch, starting with the switch to the far right and terminating on the one to the far left. They also had a single black wire that did the same. It had a section of insulation removed for each of the first two switches, wrapped around them, and continued on to end on the switch on the right. I put the new switches in exactly like the others had been in there, but it’s bothering me. I’ve included a picture taken before I started. It shows the ground, but not the hot wire.
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