Originally Posted By: ddivito This post was automatically imported from our archived forum.
I saw a main service panel today that had a neutral/bare grounding wires on one busbar that was properly bonded to the enclosure. There was also a busbar on the enclosure that had a few bare grounding wires on it as well. Does a ground connecton made through the enclosure back through the bonding screw to the grounding electrode work well enough?
Originally Posted By: Greg Fretwell This post was automatically imported from our archived forum.
ddivito wrote:
I saw a main service panel today that had a neutral/bare grounding wires on one busbar that was properly bonded to the enclosure. There was also a busbar on the enclosure that had a few bare grounding wires on it as well. Does a ground connecton made through the enclosure back through the bonding screw to the grounding electrode work well enough?
U/L says it works but I like a fat wire (250.66 size) between the bus with the grounded service connector and the ground bus for my main bonding jumper. I have even heard it said that the attaching screws can't be the only way you bond a grounding bus but the manufacturer says it is OK.
Bonding the neutral bus to the can is either going to be a strap or a green hex head screw.
If you also run a wire to the grounding bus you triple the contact points to the can.
This still has to be a suggestion, not "code"