Test of Orlando, FL pool proving the 2023 NEC as amended is safe, while earlier versions are not.

This is a Test to EPRI Standards of a pool in Orlando, FL  It proves that building a pool with respect to stray voltage and proper equipotential bonding, to a standard lower than the 2023 National Electrical Code® as amended, is a risk of fatality to persons in the pool and on the deck. Conversely, it proves that a pool built to the 2023 NEC® will provide protection both in the pool and on the deck, in the event of electrical faults not disrupted by a GFCI device. This includes failed pumps, lights, appliances on extension cords, electric hot water heaters, underground nicked power lines, etc.  


This is not uncommon, it is seen that the person performing this test applies a line fault (i.e. electricity from one of the homes wall plug receptacles) directly to the equipotential bonding network for the pool resulting in 96V of electricity directly into the pool water. It shows that a human simultaneously contacting the water and the deck area above the single wire, would most probably die, but if they are contacting the water and the deck area above the NEC TIA 23-9 compliant equipotential grid, they would live and maybe not even feel the electricity.  This same and similar tests have been performed multiple times with published results by NEETRAC, Enernex, and EPRI.  It was studied by the NFPA in 2022 resulting in an emergency amendment to the 2023 NEC, which now provides adequate safety. 

Watch the Video

Other short explanations:

https://strayvoltage.epri.com/general/testresults.aspx

Pre-TIA 23-9 animation with audio


 NFPA, National Fire Protection Association, National Electrical Code® and NEC is registered trademarks of the National Fire Protection Association, Quincy, MA 


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