I'll begin by saying that I'm no electrician. I was just wondering about the following:
TLDR: Is it ok to have two 12/2 cables and a 10/3 cable going through the same 3/4" hole?
For a washer and dryer there are currently two blue boxes with two yellow cables, which I suspect to be 12/2 cables, going through a hole (through wood, but not a floor joist) maybe 3/4" wide. Turns out a gas dryer wasn't possible so I needed a larger wire, so I ran an orange 10/3 cable through the same hole as the 2 12/2 cables.
My question is whether or not this is OK? The reason I did this is because the ceiling is going to be boarded up and now is the time to do it. The 10/3 cable going to the panel has a drop ceiling so I am going to let the electrician handle the wiring of that (though for now I did just run it along the joists and to the panel).
The 10/3 cable is pretty thick so I did have to tug a little bit to get it through the hole, but it appeared to be undamaged and fine. I'll add by saying that the 10/3 and 12/2 cables are not running parallel once through the hole. In fact they diverge (something like below)
^ | | | | | | | | | 12/2 v <---------10/3 cable ------> *