A friend was having problems with his electric to the barn and outbuildings. And he thought that some of the powerlines had loose connections from the breaker panel to the sub panel in the barn so I checked out the sub panel and Everything looked good. I started at the barn and worked my way back to the breaker panel, checking each connection on the overhead power lines. At the barn a ground wire wasn’t making good contact. I cleaned the paint off of it and hooked it back up. At the house, the ground wire was frayed and the hot lines casings were cracked. Arcing potential. I replaced the lines from the breaker panel to the powerlines going out to the buildings. I also found that the double 60 breaker was bad and replaced it. I hooked everything up and it all worked the way it was supposed to.