/diy/ - Do It Yourself

>>1251511
My garage has a breaker in it that is basically used like a giant light switch for stuff.
the garage itself as a whole is on its own breaker switch in the house. on the one in the garage, there is a double one labled mains, and other ones for outlets, lights, and so on.
when thing on the left touches the thing on the right in the garage the electric goes off and I have to go into the house and reset the breaker for the whole garage. The switches in the garage dont flip on their own though. I dont know if they just arnt the self flipping type or if its because they were in a high humidity area for 30 years and are just defective or whatever, this is irrelevant.

so my question is wtf is causing the breaker in the house to flip off, ground touching ground shouldn't do that, right? If it was shorted out some how then shouldn't I have noticed something else not working right a long time ago?