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UF Cable to Jacuzzi

680.40 Outdoor and indoor installations. I thinks you can run UF from the house panel to the disco, but from there you would use a flex type conduit like liquidtight to the spa.
 
You can run UF underground or above ground as long as it doesn't go through a corrosive area. So, if they are storing the sanitation chemicals in the garage all the wiring in the garage will have to comply.

Table E4202.1 Permitted wiring methods in a corrosive environment mentions OCPD several times but there is no definition. What does it mean?

How far does a wire need to be underground not to be in a corrosive environment?

If the wiring is behind siding or drywall is out of the corrosive environment?

These are questions that always bugged me.
 
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jar546 said:
I've personally never seen UF with an insulated ground but that doesn't mean it does not exist.
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You are correct there is no UF to my knowledge with a green ground conductor. They do make a three wire red, black, and white with a bare ground. The pump is required to have an insulated ground. and since it is smaller than a # 6 conductor you can not reidentify it with green tape.
 
Gregg Harris said:
You are correct there is no UF to my knowledge with a green ground conductor. They do make a three wire red, black, and white with a bare ground. The pump is required to have an insulated ground. and since it is smaller than a # 6 conductor you can not reidentify it with green tape.
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The question is asking if you can run the UF to the disconnect, and not about what is required to be run from the disconnect to the pump. Does that change your thinking?
 
2023 NEC 680.7(A):

"Feeders and branch circuits installed in a corrosive environment or wet location shall contain an EGC that is an insulated copper conductor sized in accordance with Table 250.122, but not smaller than 12 AWG."

So no UF underground to the disconnect of a hot tub under the 2023 NEC.

The 2020 NEC does not have that language, and I don't see anything in Part III of Article 680 prohibiting an uninsulated EGC, so if this is a storable hot tub I believe the UF would be OK in jurisdictions using the 2020 NEC. But I'm not so familiar with Article 680 and might have overlooked something.

Cheers, Wayne
 
wwhitney said:
2023 NEC 680.7(A):

"Feeders and branch circuits installed in a corrosive environment or wet location shall contain an EGC that is an insulated copper conductor sized in accordance with Table 250.122, but not smaller than 12 AWG."
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The "wet area" would be a major change for me if I am not retired by the time the state adopts the 2023 NEC. We are on the 2017 NEC/2018 IRC now. I average 3 spa inspections a day and usually see UF run outside from the panel to the spa disconnect.
 
jar546 said:
The question is asking if you can run the UF to the disconnect, and not about what is required to be run from the disconnect to the pump. Does that change your thinking?
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In this scenario from panel, underground to disconnect that is required to be in sight The maintenance disconnecting means must be readily accessible and located within sight and at least 5 ft from the permanently installed pool, storable pool, outdoor spa, outdoor hot tub, or fountain equipment unless separated from the open water by a permanently installed barrier that provides a 5 ft reach path or greater. This horizontal distance is measured from the water’s edge along the shortest path required to reach the disconnecting means.
The disconnect is not required to be in a corrosive environment. So the answer would be yes From the disconnect to the motor assembly it would require a copper conductor with a green insulation .
 
Gregg Harris said:
In this scenario from panel, underground to disconnect that is required to be in sight The maintenance disconnecting means must be readily accessible and located within sight and at least 5 ft from the permanently installed pool, storable pool, outdoor spa, outdoor hot tub, or fountain equipment unless separated from the open water by a permanently installed barrier that provides a 5 ft reach path or greater. This horizontal distance is measured from the water’s edge along the shortest path required to reach the disconnecting means.
The disconnect is not required to be in a corrosive environment. So the answer would be yes From the disconnect to the motor assembly it would require a copper conductor with a green insulation .
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What if this were under the 2023 NEC?
 
wwhitney said:
See post #11 and 2023 NEC 680.7(A) (plus 300.5(B)).

Cheers, Wayne
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(B) Wet Locations. The interior of enclosures or raceways
installed underground shall be considered to be a wet location.
Insulated conductors and cables installed in these enclosures
or raceways in underground installations shall comply with
310.10(C) .

My bad I FUBARED
 
Gregg Harris said:
(B) Wet Locations. The interior of enclosures or raceways
installed underground shall be considered to be a wet location.
Insulated conductors and cables installed in these enclosures
or raceways in underground installations shall comply with
310.10(C) .

My bad I FUBARED
Click to expand...
Yes, new section in the 2023 NEC.

680.7 Grounding and Bonding.


(A) Feeders and Branch Circuits.

Feeders and branch circuits installed in a corrosive environment or wet location shall contain an EGC that is an insulated copper conductor sized in accordance with Table 250.122, but not smaller than 12 AWG.

ENHANCED CONTENT
The equipment grounding conductor (EGC) installed with the feeder can be an aluminum conductor if the location in which it is installed is not a corrosive environment. Where a panelboard is supplied by a separately derived system, such as a transformer, the rules covering the EGC apply only to the feeder between the separately derived system (in the case of a transformer, the secondary conductors) and the panelboard, and not to any feeder conductors on the supply side of the separately derived source. The feeder is also required to be installed in a raceway where installed in corrosive environments in accordance with 680.14.
 
Does it have a luminaire? 680.23

(F) Branch-Circuit Wiring.
(1) Wiring Methods.
Where branch-circuit wiring on the supply side of enclosures and junction boxes connected to conduits run to underwater luminaires are installed in corrosive environments as described in 680.2, the wiring method of that portion of the branch circuit shall be in accordance with 680.14 or shall be liquidtight flexible nonmetallic conduit. Wiring methods installed in corrosive environments as descri⁠bed in 680.14 shall contain an insulated copper equipment grounding conductor sized in accordance with 250.122, but not smaller than 12 AWG.
Where installed in noncorrosive environments, branch circuits shall comply with the general requirements in Chapter 3.
Exception:
Where connecting to transformers or power supplies for pool lights, liquidtight flexible metal conduit shall be permitted. The length shall not exceed 1.8 m (6 ft) for any one length or exceed 3.0 m (10 ft) in total length used.
(2) Equipment Grounding.
Other than listed low-voltage luminaires not requiring grounding, all through-wall lighting assemblies, wet-niche, dry-niche, or no-niche luminaires shall be connected to an insulated copper equipment grounding conductor installed with the circuit conductors. The equipment grounding conductor shall be installed without joint or splice except as permitted in 680.23(F)(2)(a) and (F)(2)(b). The equipment grounding conductor shall be sized in accordance with 250.122 but shall not be smaller than 12 AWG.
 
wwhitney said:
A typical hot tub is "storable" and thus not subject to 680.23. Part III of Article 680 vs Part II of Article 680.

Cheers, Wayne
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Walls of my hot tub are metal so don't meet that definition...NFPA 70 really screws this up....

Storable Swimming, Wading, or Immersion Pools; or Storable/Portable Spas and Hot Tubs.

Swimming, wading, or immersion pools that are intended to be stored when not in use, constructed on or above the ground and are capable of holding water to a maximum depth of 1.0 m (42 in.), or a pool, spa, or hot tub constructed on or above the ground, with nonmetallic, molded polymeric walls or inflatable fabric walls regardless of dimension.

The height goes away in 2023 so that will make it even weirder and eliminate most of the dirt bonding as well.....For on ground stuff....
 
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