I'm installing a sub-panel to new shop and all was well until I opened the main 200 amp main panel and discovered a seriously over-crowded neutral/ground bar; not only are there no places left, but most have several wires. It appears to even have one piggy-backed on top of the first.
My question is, what is the best way to deal with this? I have another bar to install but how does it need to be connected to the first?
My question is, what is the best way to deal with this? I have another bar to install but how does it need to be connected to the first?