stjohnbarleycorn
Senior Member
I am trying to an understanding on this. I have downloaded the available pdf from this site.
The pool area is all bonded by #8 copper, the grid the pump, lights rebar, anything metal. So you have an island of #8 connecting everything together. Then you come from the light or the pump with #12 to the panel. If I understand it right. With the wet niche I am bringing a #8 to the deck box, and also the outside bonding to the grid, but from there I am bringing a #12 back to the panel. I see that the #8 is bonding and the #12 is the GEC. .
Is it that we use the #8 because of its thickness and so less likely to be cut or broken or is it that we want a very low impedance?
I see the idea of bonding and having the area with no difference of potential, that all makes sense to me, but why not go back to the panel with the #8? It just seems the natural thing to do.
Would this cause some kind of alternate path for a short, from the light or pump, if for some reason the #8 became cut? Is it a bad idea to bring the #8 to the panel, or redundant and a waste of copper? thanks for any ideas on this.
The pool area is all bonded by #8 copper, the grid the pump, lights rebar, anything metal. So you have an island of #8 connecting everything together. Then you come from the light or the pump with #12 to the panel. If I understand it right. With the wet niche I am bringing a #8 to the deck box, and also the outside bonding to the grid, but from there I am bringing a #12 back to the panel. I see that the #8 is bonding and the #12 is the GEC. .
Is it that we use the #8 because of its thickness and so less likely to be cut or broken or is it that we want a very low impedance?
I see the idea of bonding and having the area with no difference of potential, that all makes sense to me, but why not go back to the panel with the #8? It just seems the natural thing to do.
Would this cause some kind of alternate path for a short, from the light or pump, if for some reason the #8 became cut? Is it a bad idea to bring the #8 to the panel, or redundant and a waste of copper? thanks for any ideas on this.
