The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
Calling all Non-US members!! (Non-US only)
by aussie240
Yesterday at 02:39 AM
Photo Upload Tutorial
by DanK
12/06/16 11:35 PM
Sprinklered equipment 26-008
by bigpapa
12/02/16 04:24 PM
On Delay Relay with Auto Reset
by Potseal
12/01/16 09:59 AM
Wow, that was close!
by jraef
11/28/16 07:06 PM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 13
HotLine1 9
Texas_Ranger 8
sparkyinak 7
Trumpy 6
Who's Online
0 registered (), 196 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#169150 - 09/27/07 12:30 PM Article 680 & Equipotential grids...
Elec N Spec Offline
Member

Registered: 07/06/06
Posts: 33
Loc: Rochester Hills, MI USA
Now that Michigan has adopted the 2005 NEC (It's about time), the requirements for pools, hot tubs, fountains and ponds have changed. I can sure use some detailed pictures and examples of how people are conforming to the equipotential grids as required in 680. I hear many people with many different ideas on how they comply, but a picture is worth a thousand words as they say and this is one place I could sure use a few.

Regards,

Tony T.

Top
2014 / 2011 NEC & Related Books and Study Guides
#169165 - 09/27/07 08:42 PM Re: Article 680 & Equipotential grids... [Re: Elec N Spec]
gfretwell Offline

Member

Registered: 07/20/04
Posts: 9045
Loc: Estero,Fl,usa
_________________________
Greg Fretwell

Top
#169183 - 09/28/07 08:34 AM Re: Article 680 & Equipotential grids... [Re: Elec N Spec]
JoeRossi Offline
Member

Registered: 01/31/03
Posts: 26
Loc: Washington, NJ
Sorry I can not get a pic for you but to be sure you will have no problems, use re-bar for your 12X12 grids and tie them together with tying bond wires.
_________________________
Joe Rossi

Top
#169185 - 09/28/07 08:42 AM Re: Article 680 & Equipotential grids... [Re: JoeRossi]
gfretwell Offline

Member

Registered: 07/20/04
Posts: 9045
Loc: Estero,Fl,usa
The 2008 is going to soften the deck requirement a bit so you may end up with a "bump" in the requirement for a few years. Florida has cherry picked that easing of the rule from the 2008 and put it in the Florida Building Code amendments so we don't have to wait for the 2008 (that will probably be skipped anyway).
I haven't seen the final NEC text yet but it is supposed to be as simple as a #8 looped through the deck pour (or under pavers) as I understand it. I would hope AHJs would pick this up sooner than they adopt the 2008, just to avoid that 12 x 12 copper grid anomally for a few years
_________________________
Greg Fretwell

Top



ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals