hmm maybe I should have combined the threads, but to restate (not at you particularly) I don't intend to do the worst case kind of testing with ridiculous loads like giant flash lamps, only realistic circuits I would build...
If I get the full burst from that inrush, I expect my circuit to explode, my wallet to feel lighter, etc... I don't have a assembly line of circuits and parts to explode
But for that kind of explosion to happen, you would need two breakers to fail right? The main feed breaker (200A or whatever), and the secondary breaker (20-40A)? (I still intend to use 10kA breakers )
What kind of failure mode leads to such a explosion? I am a bit concerned about my basement.