Pool Bonding

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volt102

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New Hampshire
680.26(B)(2) Bonding to perimeter surfaces shall be provided as specified in 680.26(B)(2)(a) or (2)(b) and shall be attached to the pool reinforcing steel or copper conductor grid at a minimum of four (4) points uniformly spaced around the perimeter of the pool.
For nonconductive pool shells, bonding at four points shall not be required.


From 680.26(B)(1) last sentence - Vinyl liners and fiberglass composite shells shall be considered to be nonconductive materials.

680.26(B)(3) Metallic Components. All metallic parts of the pool structure, including reinforcing metal not addressed in 680.26(B)(1)(a), shall be bonded. Where reinforcing steel is encapsulated with a nonconductive compound, the reinforcing steel shall not be required to be bonded.

Take an above ground pool that uses metal stanchions and metal banding with a vinyl liner and couple it with 680.26(B)(2)
I am looking at it as it is non-conductive as you are swimming. Conductive as you are looking at the pool while standing on the ground.

What parts of the pool is the shell in the above? The metal frames parts and/or the liner?

Cut a hole in the metal wall that supports the vinyl liner for a skimmer basket, the water is in contact with that metal.

So a bonding wire has to be place around a 52" high above-ground pool 18 to 24 inches and buried 4 to 6 inches deep. It only has to attach to the metal structural parts_____________?

Once or at Four Points?
 
Jim I would say definitely that the metal supports should be bonded even with the vinyl liner. I would say it must be done at 4 points.
 
volt102 said:
680.26(B)(2) Bonding to perimeter surfaces shall be provided as specified in 680.26(B)(2)(a) or (2)(b) and shall be attached to the pool reinforcing steel or copper conductor grid at a minimum of four (4) points uniformly spaced around the perimeter of the pool.
For nonconductive pool shells, bonding at four points shall not be required.

From 680.26(B)(1) last sentence - Vinyl liners and fiberglass composite shells shall be considered to be nonconductive materials.

680.26(B)(3) Metallic Components. All metallic parts of the pool structure, including reinforcing metal not addressed in 680.26(B)(1)(a), shall be bonded. Where reinforcing steel is encapsulated with a nonconductive compound, the reinforcing steel shall not be required to be bonded.

Take an above ground pool that uses metal stanchions and metal banding with a vinyl liner and couple it with 680.26(B)(2)
I am looking at it as it is non-conductive as you are swimming. Conductive as you are looking at the pool while standing on the ground.

What parts of the pool is the shell in the above? The metal frames parts and/or the liner?

Cut a hole in the metal wall that supports the vinyl liner for a skimmer basket, the water is in contact with that metal.

So a bonding wire has to be place around a 52" high above-ground pool 18 to 24 inches and buried 4 to 6 inches deep. It only has to attach to the metal structural parts_____________?

Once or at Four Points?


Jim
If this pool is like the typical vinyl liner type pools here, where the stanchions are bonded together by virtue of the method the pool is built...I say the NEC only requires bonding of the stanchions in 1 location.

I would speak to the installer about verifying that the stanchions are bonded by the type of pool construction. To me the equipotential bonding of pools, especially vinyl lining type pools is very important. Not a causal inspection by any means.
 
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