Thanks, but you forget where I am located. In this case I can't even find a national code, nor would anybody care if there is one. I am my own professional when it comes to grounding static electricity, hence my questions here. A friend of mine is one of the few electrical consultants here and the only thing he can come with is some stuff on pulsed EMI - ESD (electrostatic discharge). I read the entire technical article and it is quite interesting. He believes in overkill and has suggested a #4 wire, but I know that this is way overkill, especially as the situation applies strickly to indoors and there will be no lightening strikes.
A clue to what is required for wire size can be found in what many aircraft manufacturers provide for a ground jack on the aircraft. It is only a modified 1/4 inch audio plug and the wire terminal on those things is pretty small.
One small change that I have decided on, but this should not affect anything, is that I am now going to tie the building electrical grounds into this as well.
All electrical wiring in the building will be #12, so see no reason why I can't use a #12 ground wire from the rebar to the static discharge ground studs in the floor and to the grounds on every plug. Anybody see a problem with that?
Thanks to all of you who have contributed to this disccussion.

 

I do see your location now.

The size conductor that ties all the groudning electrodes together is based on the size of the electrical service, or main disconect. I would not use 12AWG as a fualt current capable of very high in-rush currents finds all paths to ground. What size is your service, or main disconect?

The last time I worked in a Coast Guard hanger, I do remember a cable with an outer diameter close to that of a 2-4 AWG, however, it may be a thicker insulation. Nevertheless, until you can find out more, that I would guess is large enough. You are only discharging static which to my knowledge has a very, very low amount of current.

I'll see what I can find out about the size of cable.