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Topic: equipotential bonding above ground pools...

User: dannyt, Location: Chapel Hill, NC

Asked on: Wednesday, June 1, 2011 at 10:57 am EDT
Answered on: Tuesday, May 14, 2024 at 6:05 am EDT

Question: Perimeter surfaces. How do you properly identify the edge of the 3' perimeter surfaces. With #8 cu?? No structual steel. Does the perimeter surface need to be a copper wire mesh grid 12" by 12" around pool and 3' out from wall???? Or is a single #8 awg cu following contour of pool 18"-24" out and bonded minimum of 4 points good.?????

Proper Identification of Perimeter Surfaces

The edge of the 3' perimeter surfaces for swimming pools with no structural steel is typically identified using one of the following methods: Continuous Copper Wire Mesh Grid

A copper wire mesh grid with 12" x 12" openings is installed around the pool and extends 3' out from the pool wall. The grid is bonded to the pool shell at a minimum of four points.


#8 AWG Copper Bar

A single #8 AWG copper bar is installed following the contour of the pool, approximately 18"-24" out from the pool wall. The bar is bonded to the pool shell at a minimum of four points.

Recommended Method


Both methods provide an effective perimeter surface, but the continuous copper wire mesh grid is generally preferred. This is because it provides a more evenly distributed grounding surface and is less likely to be damaged by pool chemicals or equipment.

Bonding Requirements

Regardless of the method used, the perimeter surface must be bonded to the pool shell at a minimum of four points. The bonding conductors should be #8 AWG copper wire and should be secured using listed connectors or clamps.

Additional Considerations If the pool is located in an area with high lightning activity, additional grounding measures may be required, such as the installation of lightning protection equipment. The perimeter surface should be inspected regularly for any damage or breaks and repaired as necessary. Flag for review

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