Grounding Rod For Star Grounding
Posted: Thu Mar 01, 2007 11:55 am
Hello all,
I have really been blessed by all the information in this forum as well as others. I have been able to get the answers I have needed to Iwould say about 99% of my questions without posting a question myself. Now that is what I call an informative site!
However, since reading other posts on star grounding, I understand all about the separate grounds, homeruns for outlets, IGR and other stuff. My question is this. I have a sub-panel ran to my studio. It is still in the rough in phase (the studio that is). The panel is wired with a 40 amp breaker that has all the trimmings, red and black wired to the bus, white wire wired to neutral bus, and ground wire to ground bus. I have installed a second ground bus and have installed a grounding rod wherewith to feed this bus, which will house the individual ground wires coming from the outlets. The outlets are regular outlets, housed in plastic gang boxes. Do i need to tie the grounding rod in to the houses's ground or not? I would also sumise that with one ground bus already tied to the main panel's ground this automatically ties the panel into the house's ground, and since the second ground bus bar is screwed directly to the panel it is also tied to the main ground by way of the original gorund bus which has the ground wire tied to it from the 8-3 wire. Please help. I just want to make sure that the 40 amp breaker in the main panel will trip as required should something go wrong and 40+ amps are read across that breaker. I ran the outlets' 14-2 and THHN 14 gauge ground wire through the same holes and they are also tie strapped together per knightlfly's post concerning the need for this in order to have a quicker circuit breaker trip in the event of a fault. Thanks in advance. If you need anymore info please ask.
I have really been blessed by all the information in this forum as well as others. I have been able to get the answers I have needed to Iwould say about 99% of my questions without posting a question myself. Now that is what I call an informative site!
However, since reading other posts on star grounding, I understand all about the separate grounds, homeruns for outlets, IGR and other stuff. My question is this. I have a sub-panel ran to my studio. It is still in the rough in phase (the studio that is). The panel is wired with a 40 amp breaker that has all the trimmings, red and black wired to the bus, white wire wired to neutral bus, and ground wire to ground bus. I have installed a second ground bus and have installed a grounding rod wherewith to feed this bus, which will house the individual ground wires coming from the outlets. The outlets are regular outlets, housed in plastic gang boxes. Do i need to tie the grounding rod in to the houses's ground or not? I would also sumise that with one ground bus already tied to the main panel's ground this automatically ties the panel into the house's ground, and since the second ground bus bar is screwed directly to the panel it is also tied to the main ground by way of the original gorund bus which has the ground wire tied to it from the 8-3 wire. Please help. I just want to make sure that the 40 amp breaker in the main panel will trip as required should something go wrong and 40+ amps are read across that breaker. I ran the outlets' 14-2 and THHN 14 gauge ground wire through the same holes and they are also tie strapped together per knightlfly's post concerning the need for this in order to have a quicker circuit breaker trip in the event of a fault. Thanks in advance. If you need anymore info please ask.