My take is that someone who has told me of doing a panel swap, has already had his share of chances to assume room temperature. I figure that he must already know not to let those metal thingys touch those other deadly do-dads. But even experienced electricians might not think of using commonly available relays as about the cheapest, although crude, event recorder for a problem that might rarely manifest itself.
Years ago, a friend of mine was the CE of a 10 KW stereo FM co-located with the 2MW UHF transmitter that I maintained. He installed relays, indicators, and reset buttons on his 3 phase 480 input power. I had never given it any thought prior but realized that it was a clever idea. After that, I would walk back to his area after resetting a power outage on my transmitter. Seeing one of his phase lamps out would mean that I had to look no further for the source of my outage. Such a simple concept yet it saved a lot of time.
So Chris, I also want to welcome you to ECN! Measure twice cut once! Don't cut the pink one! Clear the airspace above you before opening or the runway in front of you before landing. Watch out for Pit Bulls with mood swings and most of all, never date women who REAAAAAALLY liked "Fatal Attraction"! There are centuries of combined experience on this board and much to be gained from frequent visits so read on, take care and be safe.
Joe
