Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 05-24-2011, 09:58 PM   #1
Newbie
 
Join Date: Apr 2011
Location: Vermont
Posts: 26
Rewards Points: 25
Default

Grounding a swimming pool bonding grid


Is there any benefit (or harm) to grounding the bonding grid of an in-ground swimming pool? My pool builder says that most electricians do it, but article 680 is silent.

Thanks,

Sim

Simbilis is offline   Reply With Quote
Old 05-25-2011, 03:01 AM   #2
Semi-Pro Electro-Geek
 
Join Date: Jul 2009
Location: Arizona, USA
Posts: 2,557
Rewards Points: 2,010
Default

Grounding a swimming pool bonding grid


What do you mean, exactly? I can't imagine a pool bonding grid that isn't already automatically grounded. The bonding grid is just about the best possible grounding electrode imaginable.

mpoulton is offline   Reply With Quote
Old 05-25-2011, 04:04 AM   #3
Newbie
 
Join Date: Apr 2011
Location: Vermont
Posts: 26
Rewards Points: 25
Default

Grounding a swimming pool bonding grid


Sorry. By grounding, I meant connecting the grid to the ground rod for the pool subpanel.
Simbilis is offline   Reply With Quote
Old 05-25-2011, 05:46 AM   #4
Licensed Electrical Cont.
 
Speedy Petey's Avatar
 
Join Date: Feb 2004
Location: NY State
Posts: 6,858
Rewards Points: 2,020
Default

Grounding a swimming pool bonding grid


Quote:
Originally Posted by Simbilis View Post
My pool builder says that most electricians do it, but article 680 is silent.
Most electricians don't know 680 very well, that is the problem. Many electrician are still not clear on the whole grounding/bonding thing in general.

NO, there is NO benefit nor is it required by code to doing this, so WHY do it? the code is so overkill in some areas (680 for example) already. If they don't required it that is saying something.



Quote:
680.26 Equipotential Bonding.

(A) Performance. The equipotential bonding required by this section shall be installed to reduce voltage gradients in the pool area. See related Staff Note

(B) Bonded Parts. The parts specified in 680.26(B)(1) through (B)(7) shall be bonded together using solid copper conductors, insulated covered, or bare, not smaller than 8 AWG or with rigid metal conduit of brass or other identified corrosion-resistant metal. Connections to bonded parts shall be made in accordance with 250.8. An 8 AWG or larger solid copper bonding conductor provided to reduce voltage gradients in the pool area shall not be required to be extended or attached to remote panelboards, service equipment, or electrodes.
Speedy Petey is offline   Reply With Quote
The Following User Says Thank You to Speedy Petey For This Useful Post:
Simbilis (05-25-2011)
Old 05-25-2011, 05:52 AM   #5
Lic Elect/Inspector/CPO
 
Join Date: Apr 2011
Location: NJ
Posts: 369
Rewards Points: 250
Default

Grounding a swimming pool bonding grid


Quote:
Originally Posted by Speedy Petey View Post
Most electricians don't know 680 very well, that is the problem. Many electrician are still not clear on the whole grounding/bonding thing in general.

NO, there is NO benefit nor is it required by code to doing this, so WHY do it? the code is so overkill in some areas (680 for example) already. If they don't required it that is saying something.
This is a true about some electricians and on top of that each area may have it own requirements.
NJMarine is offline   Reply With Quote
Old 05-25-2011, 06:21 AM   #6
Licensed Electrical Cont.
 
Speedy Petey's Avatar
 
Join Date: Feb 2004
Location: NY State
Posts: 6,858
Rewards Points: 2,020
Default

Grounding a swimming pool bonding grid


Quote:
Originally Posted by NJMarine View Post
.......and on top of that each area may have it own requirements.
Have you ever known or heard of any place that requires an EBG be connected to an electrode?
Speedy Petey is offline   Reply With Quote
Old 05-25-2011, 06:40 AM   #7
Lic Elect/Inspector/CPO
 
Join Date: Apr 2011
Location: NJ
Posts: 369
Rewards Points: 250
Default

Grounding a swimming pool bonding grid


Quote:
Originally Posted by Speedy Petey View Post
Have you ever known or heard of any place that requires an EBG be connected to an electrode?
NO
My point was that areas can decide not to enforce certain parts of the NEC.
Ground rod is one of these, I have not been required to install one.

Last edited by NJMarine; 05-25-2011 at 06:43 AM.
NJMarine is offline   Reply With Quote
Old 05-25-2011, 08:04 AM   #8
Registered User
 
Termite's Avatar
 
Join Date: Apr 2008
Posts: 6,520
Rewards Points: 2,000
Default

Grounding a swimming pool bonding grid


Pool bonding is all about equipotential between all metal parts in and around the pool, not grounding a fault. Attaching the grid to the panel or installing a ground rod has no benefit, is not required in the code, and should not be required. Electricians that do so demonstrate very little understanding of the actual purpose of the bonding grid IMHO.
Termite is offline   Reply With Quote
Old 05-25-2011, 11:46 AM   #9
Semi-Pro Electro-Geek
 
Join Date: Jul 2009
Location: Arizona, USA
Posts: 2,557
Rewards Points: 2,010
Default

Grounding a swimming pool bonding grid


There is essentially no reason to connect the bonding grid to a ground rod, especially since the bonding grid is a better grounding electrode than any rod could ever be. However, it's worth noting that any properly installed bonding grid is already connected to the system's grounding electrodes. The bonding grid includes connections to the pump motor frame and light niche, both of which are grounded and bonded to the panel and thus connected to the system grounding electrodes.

mpoulton is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Swimming pool equipment bonding Boursalians Electrical 7 05-10-2011 01:31 PM
Tips on how I can get this electrical job done for a hot tub in backyard. the punisher Electrical 34 08-24-2010 06:08 PM
Pool bonding grid Our4boys Electrical 12 08-07-2010 01:39 AM
Pool Care Guide scottiedog Landscaping & Lawn Care 16 06-07-2008 08:41 PM
Wire size for 300watt trans, 3 way 100ft Al the Diy guy Electrical 16 03-22-2008 08:46 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.