sprevost
New member
- Location
- Sunnyvale, CA, USA
Hello,
Been looking at the existing posts..and didn't really find definitive information.
I had my in-ground pool remodeled, and now I'm removing a brick pool deck, and replacing it with pavers. I am an electrician, and I want to bring the installation up to code. AHJ (city) is using NEC 2008 (2011 CEC). Gunite pool circa 1975. Bonding wires exist for pool rebar frame, light fixture, equipment pad. No bonding existed under the brick pool deck. Am I required to install a mesh bonding grid extending 3 ft around the pool, or will a single #8AWG wire in a ring around the pool be sufficient? Also, I am installing a self contained portable hot tub. Is a grid necessary under this too if it is sitting on pavers?
Thanks,
Scott
See alternate means from 2008 NEC art. 680.26
(2) Perimeter Surfaces. An equipotential bonding grid shall extend 3 ft horizontally beyond the inside walls of a pool, outdoor spa, or outdoor hot tub, including unpaved, paved, and poured concrete surfaces. The bonding grid shall comply with (a) or (b) and be attached to the conductive pool reinforcing steel at a minimum of four points uniformly spaced around the perimeter of the walls of a pool, outdoor spa, or outdoor hot tub.
(a) Structural Reinforcing Steel. Structural reinforcing steel [680.26(B)(1)(a)]. Author?s Comment: The 2008 NEC does not provide any guidance on the installation requirements for structural reinforcing steel when used as a perimeter equipotential bonding grid.
(b) Alternate Means. Equipotential bonding conductor meeting the following:
(1) 8 AWG bare solid copper bonding conductor.
(2) The bonding conductor shall follow the contour of the perimeter surface.
(3) Listed splicing devices.
(4) Bonding conductor shall be 18 to 24 in. from the inside walls of the pool.
(5) Bonding conductor shall be secured within or under the perimeter surface 4 to 6 in. below the subgrade.
Been looking at the existing posts..and didn't really find definitive information.
I had my in-ground pool remodeled, and now I'm removing a brick pool deck, and replacing it with pavers. I am an electrician, and I want to bring the installation up to code. AHJ (city) is using NEC 2008 (2011 CEC). Gunite pool circa 1975. Bonding wires exist for pool rebar frame, light fixture, equipment pad. No bonding existed under the brick pool deck. Am I required to install a mesh bonding grid extending 3 ft around the pool, or will a single #8AWG wire in a ring around the pool be sufficient? Also, I am installing a self contained portable hot tub. Is a grid necessary under this too if it is sitting on pavers?
Thanks,
Scott
See alternate means from 2008 NEC art. 680.26
(2) Perimeter Surfaces. An equipotential bonding grid shall extend 3 ft horizontally beyond the inside walls of a pool, outdoor spa, or outdoor hot tub, including unpaved, paved, and poured concrete surfaces. The bonding grid shall comply with (a) or (b) and be attached to the conductive pool reinforcing steel at a minimum of four points uniformly spaced around the perimeter of the walls of a pool, outdoor spa, or outdoor hot tub.
(a) Structural Reinforcing Steel. Structural reinforcing steel [680.26(B)(1)(a)]. Author?s Comment: The 2008 NEC does not provide any guidance on the installation requirements for structural reinforcing steel when used as a perimeter equipotential bonding grid.
(b) Alternate Means. Equipotential bonding conductor meeting the following:
(1) 8 AWG bare solid copper bonding conductor.
(2) The bonding conductor shall follow the contour of the perimeter surface.
(3) Listed splicing devices.
(4) Bonding conductor shall be 18 to 24 in. from the inside walls of the pool.
(5) Bonding conductor shall be secured within or under the perimeter surface 4 to 6 in. below the subgrade.
