Hot Tub Slab Bonding

[Jerseydaze]

If I have this right I have to bond one #8 to slab wire and connect to hot tub control grounds. I only have to circle hot tub with bare # 8 if its paver's ?

 

[Dennis Alwon]

If I have this right I have to bond one #8 to slab wire and connect to hot tub control grounds. I only have to circle hot tub with bare # 8 if its paver's ?

I believe that is correct.

 

[hotwire1955]

If you'r under 2008 code it includes unpaved surfaces as well as paved.

 

[coffeebean]

What if the hot tub is on a wood or composit deck?

 

[raider1]

NFPA issued a TIA in regards to 680.42(B) here is what it says;

1. Revise 680.42(B) to read as follows:
680.42(B) Bonding. Bonding by metal-to-metal mounting on a common frame or base shall be permitted.
Exception No. 1: The metal bands or hoops used to secure wooden staves shall not be required to be bonded as required in 680.26.
Exception No. 2: A listed self-contained spa or hot tub that meets all of the following conditions shall not be required to have
equipotential bonding of perimeter surfaces installed as required in 680.26(B)(2):
(1) Is installed in accordance with manufacturer?s instructions on or above grade.
(2) The vertical measurement from all permanent perimeter surfaces within 30 horizontal inches (76 cm) of the spa to the top
rim of the spa is greater than 28 inches (71 cm).
Informational Note: For further information regarding the grounding and bonding requirements for self-contained spas and hot
tubs, see ANSI/UL 1563 ? 2009, Standard for Electric Spas, Equipment Assemblies, and Associated Equipment.

Chris