Thank you very much. Man I wish I had an electrician friend...
Amazing how we make mistakes when we are tired. Every time I did something like to a car I was working on, I was tired and not thinking right and it wouldn't have happened in the morning. No worries mate! Small price to pay in the long run.
Sorry if everyone else knows this, but is 240v the way to go for the ANT miners? I see it commonly for ETH and BTC. I am mining Zcash right now and wondering if I should run on 240v. Thanks again, and like others said, great job on getting your son involved. I bought my daughter a commemorative Bitcoin little coin as she is only 4 but I'm excited to share my obsession with her as the years go on.
From what I understand, the equipment runs more efficiently at 240v. The other benefit, is you can run more machines on a circuit. My S9's pull around 6amps, so I can put 2 safely on a 20amp circuit. At 120v, they run double the amperage at around 12amps, so you can only get one on a 20amp circuit. The danger is that most computer power cords are only rated for 10amps, and the receptacles are wiring might only be rated for 15amps. I had an S9 plugged into 120v for a bit, but the power cord was running hot. Can't have that happening at home. Also, since it's a 24/7 load, you don't want to be above 80% of your capacity, to be safe.
There are quite a few threads which go into good technical detail about this stuff.