Which of the following is NOT listed as a bonding method for indoor spa or hot tub?

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Multiple Choice

Which of the following is NOT listed as a bonding method for indoor spa or hot tub?

Bonding a spa or hot tub is about ensuring all metal parts that could become energized share the same electrical potential, so a fault current has a safe, low-impedance path back to the source and there’s no dangerous voltage difference between metal components. You can achieve this bond in a few ways: using interconnected fittings or threaded metal piping to create a continuous metallic path between metal parts; making direct metal-to-metal contact on common framing so all connected parts are electrically tied together; and running a solid copper bonding conductor, at least 8 AWG, to connect all metal components (and to the equipment grounding conductor) so they all sit at the same potential. Plastic piping bonded directly isn’t listed as a bonding method because plastic is nonconductive. There’s no electrical path through plastic to establish a bond, so it cannot be bonded directly. Bonding focuses on tying metal parts together or to the equipment grounding system, not on nonconductive plastic components.

Bonding a spa or hot tub is about ensuring all metal parts that could become energized share the same electrical potential, so a fault current has a safe, low-impedance path back to the source and there’s no dangerous voltage difference between metal components.

You can achieve this bond in a few ways: using interconnected fittings or threaded metal piping to create a continuous metallic path between metal parts; making direct metal-to-metal contact on common framing so all connected parts are electrically tied together; and running a solid copper bonding conductor, at least 8 AWG, to connect all metal components (and to the equipment grounding conductor) so they all sit at the same potential.

Plastic piping bonded directly isn’t listed as a bonding method because plastic is nonconductive. There’s no electrical path through plastic to establish a bond, so it cannot be bonded directly. Bonding focuses on tying metal parts together or to the equipment grounding system, not on nonconductive plastic components.

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