The range we put in last year tripped the breaker whenever we ran the quick boil burner and oven together. I checked the manual and the unit runs best off a 50 amp breaker, so I finally got around to replacing the 40 amp one along with 6 gauge wire to replace the 8 gauge.
My brother had asked me to help him upgrade some wiring for his shop, because he only had one 15 amp circuit powering the entire shop. Running his planer along with a shop vac would trip the breaker. I’d never installed a circuit breaker, but I was up for the challenge. This weekend I finally got some time to make a trip down.
For the new circuit we decided to use a 20 amp breaker in case he gets a machine that requires more juice. We (Mostly him, because crawling around in the hot attic was all on him.) ran 12/2 Romex wire through the attic and across the porch roof. Then we did a bunch of outlet rewiring to swap two 15 amp outlets with 20 amp ones connected to our new circuit. We also added a new 15 amp outlet from this circuit on the outside of the shop where they could plug in their patio string lights.
We saved the scary part of installing the new breaker for last, which might have actually been the easiest part of the job. The inside of that box is still extremely dangerous when MAIN is turned off, so I just had to be careful not to touch the wrong things (or die). After closing up the box and flipping the switches everything worked as planned!