Insulated ground for pool/hottub stubouts in 2017NEC

[joecalvin]

Guys, the 2014 NEC code started the requirement for an insulated ground (MC cable) for stubouts that started at the main service panel to an outside stub out for pools, fountains, hot tubs, etc......which was required to pass inspection. Now, the 2017 NEC 680.21(A)1 says that MC with an insulated ground is only required in a corrosive enviroment. So, based on this can we go back to using Romex for a pool stubout and such as long as it is not exposed to an outside open enviroment?

Thanks
Joe

 

[Dennis Alwon]

IMO, we were always allowed to use nm cable for a single family dwelling for a hot tub. The 2017 just says it must be insulated in corrosive environments.

Hot tubs fall under 680.42

(C) Interior Wiring to Outdoor Installations. In the interior
of a dwelling unit or in the interior of another building or
structure associated with a dwelling unit, any of the wiring
methods recognized or permitted in Chapter 3 of this Code
shall be permitted to be used for the connection to motor
disconnecting means and the 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. Wiring to an underwater
luminaire shall comply with 680.23 or 680.33.