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#126944 - 03/17/01 03:44 PM Re: Pool Bonding - which way is best?  
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,878
NY, USA
Hello all,

I've brought this up before, but I don't think there was any real determination on the best way to bond a pool. BTW, I put it over here in the theory section because it's not really a code issue as it can be done either way.

The code just states that the pool and all equipment associated with it be bonded together. Connection of the bonding wire to the EGC of the Power source is optional. Which way would be better? And Why?

Bill


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#126945 - 03/17/01 07:56 PM Re: Re: Pool Bonding - which way is best?  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,306
i am weak in this area also....

just what is a "voltage gradient" anyway?

is there a reason for solid vs. stranded?

a side note; just what in the world is "underwater audio" ?
[Linked Image]


#126946 - 03/17/01 10:10 PM Re: Re: Pool Bonding - which way is best?  
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,878
NY, USA
Sparky,

My understandings:

a Voltage Gradient is a difference in potential from one area to another. Solid is better (I think) because it holds up better against the elements and can take more damage?

Underwater audio? you mean Sonar?? [Linked Image] [Linked Image]


#126947 - 03/18/01 08:08 AM Re: Re: Pool Bonding - which way is best?  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,306
ok , so what if there is a difference in potential from the pool area to the service area?
[Linked Image]
I guess i can understand how solid would be hardier...
[Linked Image]

ps- 680-23 was the next code, do people really want underwater speakers installed? maybe i've lead a sheltered life up here, i've never seen such an install, i can't imagine how it would work...
[Linked Image]


#126948 - 03/18/01 11:47 AM Re: Re: Pool Bonding - which way is best?  
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,878
NY, USA
Sparky,

I think the issue is having a difference in potential in the pool itself or immediately adjacent to it. Can you imagine Current flowing through the water all the time?

An interesting Article:
http://www.aquaticsintl.com/AI/Issues/Current/99/sep_oct/feature4.shtml

I don't know what Underwater speakers would sound like, probably a lot of Base? I don't expect to be puttin in any. Maybe Seaworld could use them for something.

Bill


#126949 - 03/18/01 12:10 PM Re: Re: Pool Bonding - which way is best?  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,306
Note there is many $$$$ to correct a problem that a simple GFI would detect in this article.

There is also mention of the high V side of the service sustaining damage, creating the problem here.

Materials used to "bond" are in question here, so your original Q marches on...

[Linked Image]


#126950 - 03/23/01 07:31 AM Re: Re: Pool Bonding - which way is best?  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,306
In regards to the original Q. 680 confuses me on the subject, so my approach is to simply overground such installations.

by this is mean extra clamps, rods, bonds , etc. to anything available.

a rather paranoid approach, but so far no grief from the AHJ

[Linked Image]

[This message has been edited by sparky (edited 03-23-2001).]



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