Greetings all. I have a grounding connection for some newly added equipment that I think I have figured properly, but as with most things grounding/bonding, would like to get some confirmation on.
We are installing a new piece of equipment at an existing plant that will sit on a rebar-reinforced foundation. I have specified a connection point for the EC to bond to the rebar. the EGC for the new equipment will be the cable trays that will carry power and instrumentation to the new equipment from the existing MCC and control panel. They will both be bonded to the plant grounding system at the MCC. because the largest non-grounded conductor feeding the equipment from the MCC will be 2/0 I would make the bonding conductor that size per 250.102 (D). My major question is the size of the conductor from the CEE at the equipment end to the cable trays. 250.66 (B) says it doesn't need to be larger than #4. would this cover both the CEE connection and to the equipment or would the bonding to the equipment frame need to be the 2/0 again?
Thanks for any input.
We are installing a new piece of equipment at an existing plant that will sit on a rebar-reinforced foundation. I have specified a connection point for the EC to bond to the rebar. the EGC for the new equipment will be the cable trays that will carry power and instrumentation to the new equipment from the existing MCC and control panel. They will both be bonded to the plant grounding system at the MCC. because the largest non-grounded conductor feeding the equipment from the MCC will be 2/0 I would make the bonding conductor that size per 250.102 (D). My major question is the size of the conductor from the CEE at the equipment end to the cable trays. 250.66 (B) says it doesn't need to be larger than #4. would this cover both the CEE connection and to the equipment or would the bonding to the equipment frame need to be the 2/0 again?
Thanks for any input.