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Old 08-08-2015, 08:03 AM   #1
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Default Equipotential bonding of spa

I have a spa to wire on a pad that is existing. How can I conform to article 680?


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Old 08-08-2015, 08:03 AM   #2
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Old 08-08-2015, 08:30 AM   #3
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Is there rebar in the existing slab?
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Old 08-08-2015, 08:31 AM   #4
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Fiber mesh


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Old 08-08-2015, 08:38 AM   #5
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2014

Quote:
680.42 outdoor installations. A spa or hot tub installed
outdoors shall comply with the provisions of parts i and ii
of this article, except as permitted in 680.42(a) and (b),
that would otherwise apply to pools installed outdoors.
Quote:
680.42(b)
bonding. Bonding by metal-to-metal mounting on a
common frame or base shall be permitted. The metal bands
or hoops used to secure wooden staves shall not be required
to be bonded as required in 680.26.
Equipotential bonding of perimeter surfaces in accordance
with 680.26(b)(2) shall not be required to be provided
for spas and hot tubs where all of the following
conditions apply:

(1) the spa or hot tub shall be listed as a self-contained spa
for aboveground use.
(2) the spa or hot tub shall not be identified as suitable
only for indoor use.
(3) the installation shall be in accordance with the manufacturer's
instructions and sha11 be located on or above
grade.
(4) the top rim of the spa or hot tub shall be at least
710 mm (28 in.) above all perimeter surfaces that are
within 760 mm (30 in.), measured horizontally from
the spa or hot tub. The height of nonconductive external
steps for entry to or exit from the self-contained spa
shall not be used to reduce or increase this rim height
measurement.
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Old 08-08-2015, 09:38 AM   #6
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Wildleg thank you very much.. I appreciate it.


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Old 08-09-2015, 08:17 AM   #7
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Unfortunately, CT is on the 2011 NEC and technically 680.26(b)(2) applies.

Quote:
2011 NEC

680.42 Outdoor Installations. A spa or hot tub installed outdoors
shall comply with the provisions of Parts I and II of this
article, except as permitted in 680.42(A) and (B), that would
otherwise apply to pools installed outdoors.

(B) Bonding. Bonding by metal-to-metal mounting on a
common frame or base shall be permitted. The metal bands or
hoops used to secure wooden staves shall not be required to be
bonded as required in 680.26.

(C) Interior Wiring to Outdoor Installations.......
Fortunately, most inspectors in this state, well let's just say, ***** **** ****, and there wont be any issue.

Unfortunately, you may run across a ******** that wants it done exactly per the 2011's requirements.

Fortunately, in most cases the state will grant permission to use the verbiage of the 2014 in lieu of the 2011 as it is an updated document.
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Old 08-09-2015, 11:51 AM   #8
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Were there not 2011 TIA's about this subject?
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Old 08-09-2015, 11:54 AM   #9
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Tia? What's that.. Sorry


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Old 08-09-2015, 11:55 AM   #10
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He has a deck he will eventually bring up to the spa...


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Old 08-09-2015, 11:57 AM   #11
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Quote:
Originally Posted by brichter View Post
Were there not 2011 TIA's about this subject?
Yes

http://www.iaeisj.org/sitebuildercon...le_680_tia.pdf
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Old 08-09-2015, 12:09 PM   #12
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Yea I guess I gotta read through all the amendments


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Old 08-09-2015, 12:27 PM   #13
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Is the spa going to be recessed into the deck? Because if it is you won't meet the criteria of 680.26(b)(2). Which means you need to saw cut the slab and sink your EPB.

Quote:
680.26(b)(2) shall not be required to be provided
for spas and hot tubs where all of the following
conditions apply:
(1) the spa or hot tub shall be listed as a self-contained spa
for aboveground use.
(2) the spa or hot tub shall not be identified as suitable
only for indoor use.
(3) the installation shall be in accordance with the manufacturer's
instructions and sha11 be located on or above
grade.
(4) the top rim of the spa or hot tub shall be at least
710 mm (28 in.) above all perimeter surfaces that are
within 760 mm (30 in.), measured horizontally from
the spa or hot tub.
The height of nonconductive external
steps for entry to or exit from the self-contained spa
shall not be used to reduce or increase this rim height
measurement.
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Old 08-09-2015, 12:32 PM   #14
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I see what you are saying, kinda dumb code verbiage because deck is wood, there should be no need for equipotential bond. But you brought up a good point Thanks


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