opinion using Nm cable for branch circuit for spa in a Duplex dwelling

[Sierrasparky]

OK I know it is acceptable to use Nm for the branch circuit for a spa tub in a single family dwelling. However what is the opinion as to allow its use in a duplex dwelling. The single family has exclusive use of the spa tub. Each unit will have their own spa tub.

what is the reasoning not to allow for multi family use anyway?..

 

[donselectric]

where does it say it can't be used :?

 

[cowboyjwc]

Local ordinance?

 

[Sierrasparky]

where does it say it can't be used :?

I'm confused then. We are on the 2008 code.

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.
(A) Flexible Connections. Listed packaged spa or hot tub
equipment assemblies or self-contained spas or hot tubs
utilizing a factory-installed or assembled control panel or
panelboard shall be permitted to use flexible connections as
covered in 680.42(A)(1) and (A)(2).
(1) Flexible Conduit. Liquidtight flexible metal conduit
or liquidtight flexible nonmetallic conduit shall be
permitted in lengths of not more than 1.8 m (6 ft).
(2) Cord-and-Plug Connections. Cord-and-plug
connections with a cord not longer than 4.6 m (15 ft) shall
be permitted where protected by a ground-fault circuit
interrupter.
(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. In the
interior of a one-family dwelling or in the interior of
another building or structure associated with a one-family
dwelling, any of the wiring methods recognized in Chapter
3 of this ​

​

​

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Code that contain a copper equipment grounding
conductor that is insulated or enclosed within the outer
sheath of the wiring method and not smaller than 12 A W G
shall be permitted to be used for the connection to motor,
heating, and control loads that are part of a self-contained
spa or hot tub or a packaged spa or hot tub equipment​

assembly.

 

[cowboyjwc]

You said spa tub and I thought you meant indoors.

 

[Sierrasparky]

Sorry cowboy I was not clear enough.. So what do you think now?

 

[cowboyjwc]

I think you can use NMC cable.