Technical Details of Bonding a Pool
This wiki is a supplement to the Bonding vs Grounding article in TFP Pool School.
A good reference is from Mike Holt Enterprises on [https://www.mikeholt.com/instructor2/img/product/pdf/17UND2-1483-sample.pdf Article 680—Swimming Pools, Spas, Hot Tubs, Fountains, and Similar Installations]
Questions often come up asking if an Above Ground Pool needs to be bonded. The NEC does not refer to Above Ground Pools. The NEC says permanently installed swimming, wading, immersion, and therapeutic pools constructed in the ground or partially in the ground, and all others capable of holding water in a depth greater than 42 in., and pools installed inside of a building, regardless of water depth, whether or not served by electrical circuits of any nature must be bonded.
- The The bonding conductor must be 8 AWG bare solid copper[1]
- You can not use sheet metal screws or rivits to connect the bonding conductor.
- The bonding conductor must be secured in or under the deck or unpaved surface within 4 in. to 6 in. below the subgrade and must be located between 18 in. and 24 in. from the inside walls of the pool.
- All fixed metal parts within 5 feet of the pool must be bonded to the equipotential grid, including but not limited to, "metal-sheathed cables and raceways, metal piping, metal awnings, metal fences, and metal
door and window frames."
- Attachments for the bonding wire must be listed for the application.
