Here's the situation, I'm adding 3 new 100a service disconnects to the one existing disconnect in a small commercial building. This was somewhat laid out by our estimator. I have a 2" emt from the outside ct cabinet about 5'away running to a trough that feeds my service disconnects. I'm trying to figure the easiest way to run the GEC's and bond it all the raceways and trough to code.
250.64 D seems to allow for connecting taps to a single GEC (ran to building steel). I see I can't splice it but can I just sorta run a full size GEC under the 100a switches and split bolt on taps in "free air", if you will? I'm trying to avoid running a GEC from each switch to the steel, but I can't really loop them into the switches since I only have one lug space available for the GEC in the 100a switches.
Does 250.92 B3 allow me to use standard emt connectors without any bonding bushings assuming I have a punched KO on at least one end of the nipple or pipe? Or do I need bonding bushings?
Im still using my 02 codebook by the way.
250.64 D seems to allow for connecting taps to a single GEC (ran to building steel). I see I can't splice it but can I just sorta run a full size GEC under the 100a switches and split bolt on taps in "free air", if you will? I'm trying to avoid running a GEC from each switch to the steel, but I can't really loop them into the switches since I only have one lug space available for the GEC in the 100a switches.
Does 250.92 B3 allow me to use standard emt connectors without any bonding bushings assuming I have a punched KO on at least one end of the nipple or pipe? Or do I need bonding bushings?
Im still using my 02 codebook by the way.
