My house was built in 1972 it has the original 150 amp svc two panels and no main cut off at meter I am looking to move meter location and add new cutoff as well as upgrade to 250 amp svc I have all the supplies needed however I am unsure about a few things 1. my current panel is located next to hot water heater. Will it have to be moved? 2. can I as a homeowner pull a permit to do this myself(trying to save some money here) local electricians tell me its gonna run between 3-5 k to do job. 3.is a concrete floor required to be below new panel? Thanks in advance

I'm reaching out to our electrical experts. Today a customer came in asking for a wire nut with a hole in the end for a ground wire to pass through. He claims his electrician used one recently so that a pig tail was not needed. Instead three ground wires (bear copper) twisted together, but two were cut even while one was left longer to pass through the center hole and in turn attached to the fixture instead of twisting a pig tail to make the fixture connection. Am I making sense? Does this exist? If what is it called and can you show me a picture? --------------------------------------------------------------------------------- Same day another customer comes in and asked my advise after coming from Lowe's. He buys a 15 amp circuit breaker from them because his existing one blew out (it rattles and will trip if hit on the end). He claims that his old one had no black wire attached to the connection screw. The Lowe's people told him it was not needed because the connection is made internally. :confused: I'm not an electrician but I've changed several circuit breakers in my life. The breaker switch, using a bayonet blade or accepts blade a attaches to the main bar and the black feed line going to my circuit connects to the screw insert on the opposite side. The white (neutral) wire connects to the neutral bar. Correct? I told him that his circuit won't be made unless the black wire is connected to the breaker. He agrees but he also says it never was in his box with the old unit and Lowe's told him it's not needed. I suspect his black wire came loose and he did not notice it when he removed old breaker (maybe that is why the breaker shorted out due to a loose load wire connecting and un-connecting). BTW... his home and circuit box is at least 15 years old. So it's not new technology. Anyway, I'm prepared to eat crow and learn something new. But is there such a thing as an internal connected circuit breaker that needs no black wire connected to it? I asked him to take a picture of his circuit box and bring it in. But he never returned. At least not tonight.