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Hot Tub Cable and Electrical Wiring

   
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How to Install Hot Tub Electrical Circuit Wiring: I’m installing electrical wiring to the hot tub located in my backyard.


Methods For Installing Hot Tub Electrical Cable

Electrical Question: I’m installing electrical wiring to the hot tub located in my backyard.

  • Can I run regular 6AWG 3 conductor plus ground through 1″ conduit or do I need to run outdoor 6AWG wire?
  • I am thinking that regular indoor wire run through conduit is OK.
  • Also, to my understanding, the wire must not be buried and be above ground by at a minimum height.

This electrical question came from: Mike, a Homeowner from San Diego, CA.

Dave’s Reply:
Thanks for your electrical question Mike.

Methods for Installing Hot Tub Circuit Wiring

Application: Wiring a Hot Tub GFCI Circuit.
Skill Level: Intermediate to Advanced.
Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester.
Estimated Time: Depends on personal level experience, ability to work with tools and install the hot tub wiring.
Notice: Installing hot tub circuit wiring should be done according to local and national electrical codes with a permit and be inspected.

How to Install Hot Tub Electrical Circuit Wiring

  • Mike, 6/3 Romex or UF cable cannot be run inside a 1 inch conduit other than where the conduit may stub up out of a trench or when emerging outside of an area where the wiring was installed in a protective area such as the crawl space under a house.
  • If you are using conduit for log lengths of your hot tub circuit wiring then you should install four separate conductors, and the type of wire will depend on if the conduit is buried or not.
  • When using two types of wiring for a hot tub circuit a junction box may be installed in an accessible location where the wires may be spliced.
  • Electrical wiring projects such as this require a permit and inspections from your local building department, and the installation is best provided by a licensed electrical contractor.

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Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all projects.

Comments

2 Responses to “Hot Tub Cable and Electrical Wiring”
  1. j barbree says:

    Should I use conduit when wiring for an outdoor spa?

    • Dave Rongey says:

      Hi JB,
      Electrical wiring and components must be protected according to code, specific to the project location. Typically a GFCI protected circuit for an outdoor spa is installed with a permit and according to applicable codes, and the wiring is installed in an electrical conduit using water proof fittings and methods and the installation is inspected.
      Be Safe,
      Dave

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