Lighting Control Panel
- Thread starter ribender
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jimwalker
Senior Member
- Location
- TAMPA FLORIDA
Re: Lighting Control Panel
yes #10 is big enough.Bonding needed if concentric knock outs
yes #10 is big enough.Bonding needed if concentric knock outs
- Location
- Massachusetts
Re: Lighting Control Panel
As Jim said the 10 AWG is large enough.
You find that out in Table 250.122 you will also find that the equipment grounding conductor is never required to be be larger than the circuit conductors supplying the equipment.
12 AWG would have been acceptable or you could have left it out all together and used the EMT as the grounding conductor. 250.118
The bonding bushings would only be required for circuits of over 250 volts to ground and if concentric knock outs where used that are not listed for the purpose of grounding. 250.97
In short, if these are 120 volt circuits you do not need bonding bushings.
All of that is code minimum and there is nothing wrong with going beyond minimum.
As Jim said the 10 AWG is large enough.
You find that out in Table 250.122 you will also find that the equipment grounding conductor is never required to be be larger than the circuit conductors supplying the equipment.
12 AWG would have been acceptable or you could have left it out all together and used the EMT as the grounding conductor. 250.118
The bonding bushings would only be required for circuits of over 250 volts to ground and if concentric knock outs where used that are not listed for the purpose of grounding. 250.97
In short, if these are 120 volt circuits you do not need bonding bushings.
All of that is code minimum and there is nothing wrong with going beyond minimum.
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