I recently bought a house and have found several things wrong and I'm trying to prioritize which to fix first. I have some very limited electrical knowledge but not enough to know if this needs to be fixed immediately or can wait. I live in Texas. I'll try to use correct terminology but no gaurantees
I went into my attic to see about adding a recepticle in my (attached) garage. I find the junction box and see that the romex is just running straight from the direction of the main breaker box over insulation and whatever else is up there no staples. This is very thick 10gauge romex.
Inside the junction box it is wire nutted to three other cables one 10gauge, and two 14gauge cables. The 10gauge is then ran to a ceiling cicle box which holds the recepticle my garage door opener is plugged into, then continues on to be spliced (using only wire nuts and electrical tape). One (14gauge) leads to a switch and the other (10 maybe 12gauge different color romex) to an outside light controlled by the switch.
Back to first junction box. The two 14 gauge romex cables are ran to 15amp recepticals on two different walls (I was wanting a recepticle on the third wall). One of these recepticles has a single red very thickly insulated regency wire ran from it to a switch and continue on to the overhead light fixture. A single white common wire (same type very thick insulated wire) is ran to the fixture from the other receptical for some reason, and no ground wire.
At the main breaker box I find the 10 gauge cable is attached to a 30amp breaker and is just ran out of a hole punched out of the bottom of the box, ran up the side of box, and into the soffit.
I need to know if there are any immediate hazards I should fix this weekend. Then what is going to need to be switched out to get to/near code. I know the electrical taped splice needs to be boxed, but the 30amp breaker i haven't a clue if it's a hazard or if its fine since only 15amp recepticals are attached. The 30amp breaker is not ground or ark fault.