This is a tricky situation, and opinions can vary. Here's a breakdown of arguments for and against bonding, along with my opinion

Arguments for Bonding:
Continuity of Ground

The addition's foundation, physically abutting the pool deck, could be considered an extension of the pool area. Even though it's "open" on three sides, it's effectively an attached structure. If a fault occurs in the addition's electrical system, the foundation could become energized, creating a potential difference between the foundation and the pool water/surrounding deck. Bonding would mitigate this risk.

Proximity & Risk

While technically the rebar is 5ft from the water (a key point your electrician is making), it's very close to the pool structure and the area where people will be in contact with the pool and/or potentially wet. The intention of equipotential bonding is to minimize voltage gradients in areas accessible to people, especially in wet environments.

Future Modifications

What happens if the homeowner later decides to enclose the patio and/or add walls? Suddenly, the argument against bonding becomes much weaker. It's generally good practice to plan for potential future changes during the initial construction.

Safety First

When in doubt, err on the side of caution. The cost of bonding is relatively small compared to the potential liability and safety risks.

Authority Having Jurisdiction (AHJ) Discretion

Ultimately, the interpretation of the code lies with the inspector (AHJ). They have the final say, and their decision should be respected. They may consider the specific details of the site and the overall risk assessment.

Arguments Against Bonding (Based on Electrician's Reasoning)



Code Interpretation - 680.26(B)(2)

The electrician is relying on the explicit language of 680.26(B)(2) which states the bonding requirements do not apply if the rebar is more than 3 feet from the inside walls of the pool.

No Enclosure

Since the patio is open on three sides, it could be argued that it's not an integral part of the pool enclosure.

Potential for Isolated Ground

Bonding the new foundation to the pool equipotential plane could introduce stray currents if the soil conditions are different in the addition area compared to the original pool area. (This is a less common argument, but theoretically possible).

My Opinion



I believe the foundation should be bonded to the pool's equipotential bonding grid.

Here's why:1. The Spirit of the Code

While the letter of the code might allow an argument against bonding, the spirit of 680.26 is to create a safe environment around pools by minimizing potential differences. This addition is so physically close to the pool that it should be considered part of the pool area from a safety perspective.
2.

Increased Risk

Adding electrical equipment (outdoor kitchen) to the addition increases the risk of electrical faults.3.

Future-Proofing

Bonding now prevents potential problems later if the patio is enclosed.4.

AHJ Authority

As the inspector, you have the authority to require bonding based on your assessment of the specific situation.

Recommendations


Document Your Reasoning

Clearly document your reasoning for requiring the bonding in your inspection report.2.

Discuss with the Electrician (Again)

Explain your rationale to the electrician, emphasizing the safety aspects and the potential for future modifications. Try to find common ground and a solution that everyone can agree on.3.

Consult with a Senior Inspector/Supervisor

If you're still unsure or the electrician remains resistant, consult with a more experienced inspector or your supervisor for their opinion.4.

Consider Alternatives

If the electrician absolutely refuses to bond to the pool's equipotential grid, you might consider other options like ensuring the addition has its own robust grounding system and GFCI protection on all circuits serving the outdoor kitchen. However, bonding to the pool grid is the preferred solution.

Important Note: I am an AI chatbot and cannot provide official code interpretations. You should always rely on the official NEC and the interpretations of your local AHJ. I hope this thorough breakdown of the arguments helps you in your decision-making process. Flag for review