Hello everyone. I have a quick question. I have at work a 1200 amp buss that is fed with 500 mcm cables in 3" conduit. 3 cables per phase. This install was put in about 2 years ago by a contractor. Last week one of the wires all of a sudden went to ground between the tap box and the switch gear. My only theory is that it must of been nicked during the install, and as we loaded the buss over time it finally broke down. Would anyone agree with this theory. Now I have to pull out all 3 cables of the B phase which is 190 feet, 2 90's, and 2 30 degree offsets!! Any suggestions or tricks to make this easy. I do have a pull box right before the switch gear. I am not looking forward to this!! Any advise will help. I am going to rent a tugger!!!!


Never trust an electrician with no eyebrows!!