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Thread: Tinned copper?

  1. Back To Top    #1

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    Tinned copper?

    Would the use of tinned copper for pool/spa wiring be considered code compliant? I am having trouble finding any info regarding this in the NEC.
    Completed: June 2011
    18' X 38' IG Vinyl, 3' - 8' depth ~ 24K gallons
    2 skimmers, 2 wall suctions, 3 returns, 1.5" piping

    Hayward Equipment: 1HP Tri-star 2-speed, Aqua-Plus SWG,
    Star-Clear Plus 175 sqft cartridge filter, Colorlogic 4.0 LED

    The Pool Cleaner 4X(suction)
    2011 Jacuzzi J-280 Hot tub

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    JasonLion's Avatar
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    Re: Tinned copper?

    It depends what you are doing with it. Tinned copper is not suitable for bonding, but can be used in several other places.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: Tinned copper?

    Jason,

    I intend on using it to power my portable hot-tub. Three #6 insulated and stranded wires. 2 hots and a ground.
    Completed: June 2011
    18' X 38' IG Vinyl, 3' - 8' depth ~ 24K gallons
    2 skimmers, 2 wall suctions, 3 returns, 1.5" piping

    Hayward Equipment: 1HP Tri-star 2-speed, Aqua-Plus SWG,
    Star-Clear Plus 175 sqft cartridge filter, Colorlogic 4.0 LED

    The Pool Cleaner 4X(suction)
    2011 Jacuzzi J-280 Hot tub

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    Re: Tinned copper?

    Completed: June 2011
    18' X 38' IG Vinyl, 3' - 8' depth ~ 24K gallons
    2 skimmers, 2 wall suctions, 3 returns, 1.5" piping

    Hayward Equipment: 1HP Tri-star 2-speed, Aqua-Plus SWG,
    Star-Clear Plus 175 sqft cartridge filter, Colorlogic 4.0 LED

    The Pool Cleaner 4X(suction)
    2011 Jacuzzi J-280 Hot tub

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    Mod Squad Bama Rambler's Avatar
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    Re: Tinned copper?

    As Jason said, it's fine for that. Just not for bonding.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Re: Tinned copper?

    Here is a snippet from the wiring that came with my spa. Basically as long as your not using aluminum wire you should be okay. Naturally if you want to be super sure just ask the guy at the electrical store (not home depot/lowes). From what I can tell though the wire you are talking about is better than just plain copper wire anyways.

    240 Volt Electrical Installation
    GFCI and Wiring Requirements
    The power supplied to the spa must be on a dedicated
    GFCI protected circuit as required by ANSI/NFPA 70
    with no other appliances or lights sharing the power.
    Use copper wire with THHN insulation. Do not use
    aluminum wire.
    Use the table on the next page to determine your
    GFCI and wiring requirements.
    Wire runs over 85 feet must increase wire gauge
    to the next lower number. For example: A normal
    50 amp GFCI with four #8 AWG Copper wires run
    over 85 feet would require you to go to four #6 AWG
    copper wires.
    -Kevin
    X-Pert Pool Service
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    22,000 gal / 16' x 32' / Vinyl / Hayward s244t /Pentair SuperFlo 1 hp

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    Re: Tinned copper?

    Also expect to need a common lead. Lights and other accessories on tubs are rarely 240V.

    Scott
    Owner of - PoolGuyNJ LLC
    Expert Pool and Spa Repairs, Renovations, and Augmentation. Helping people decide what is the right gear for meeting their needs. Expectations Set, Expectations Met, No Surprises.

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    Re: Tinned copper?

    Quote Originally Posted by PoolGuyNJ
    Also expect to need a common lead.
    That would be a neutral.

    Mx, how far is your tub from the panel? What are you going to run on your tub? Pump? Lights? heater? The power needs and distance will dictate what you need to run for wiring. Are you running the power from an exising subpanel outdoors? From Inside? More detail will help here.
    14,000 gallon IG, Vinyl. Hayward 3/4 hp superpump, Penatair IC40 SWCG, Pentair automation, Hayward sand filter, Aqua Comfort heat pump, Hayward 400k Lo-Nox LP heater.

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    Re: Tinned copper?

    Quote Originally Posted by PoolGuyNJ
    Also expect to need a common lead. Lights and other accessories on tubs are rarely 240V.
    The tub is a Jacuzzi J-280 and there is no neutral required.


    Quote Originally Posted by bk406
    Mx, how far is your tub from the panel? What are you going to run on your tub? Pump? Lights? heater? The power needs and distance will dictate what you need to run for wiring. Are you running the power from an exising subpanel outdoors? From Inside? More detail will help here.
    The run of wire from my 100A SWG/sub-panel to the tub is approximately 25 feet. Both are located outdoors. The tub is a totally self contained unit comprised of 3 pumps, heater and LED lighting. According to the owner's manual the max current draw with all the equipment running is 45A. The tub will protected by a 60 amp GFCI breaker I placed in the sub-panel. I ran 1" NM conduit through which to pull the wires.
    Completed: June 2011
    18' X 38' IG Vinyl, 3' - 8' depth ~ 24K gallons
    2 skimmers, 2 wall suctions, 3 returns, 1.5" piping

    Hayward Equipment: 1HP Tri-star 2-speed, Aqua-Plus SWG,
    Star-Clear Plus 175 sqft cartridge filter, Colorlogic 4.0 LED

    The Pool Cleaner 4X(suction)
    2011 Jacuzzi J-280 Hot tub

  10. Back To Top    #10

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    Re: Tinned copper?

    Ok, you can use #6 stranded copper wire. Not sure why you want the tinned copper, its not needed.

    Just go down to HD and get some black, red, and green #6. It'll be on roles back in the wiring section. Somebody will measure it off and cut it for you. Get several more feet than the 25 so you have enough to hook into the sub panel and at the tub.

    Hopefully it wont be too stiff to pull through 1" conduit. For #6, you really want a bit bigger raceway, but you should get by with it.
    14,000 gallon IG, Vinyl. Hayward 3/4 hp superpump, Penatair IC40 SWCG, Pentair automation, Hayward sand filter, Aqua Comfort heat pump, Hayward 400k Lo-Nox LP heater.

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    Re: Tinned copper?

    Quote Originally Posted by bk406
    Ok, you can use #6 stranded copper wire. Not sure why you want the tinned copper, its not needed.
    It's a cost saving exercise.

    There are several huge spools of large wire left over from construction of the power plant I work at. It's industrial, heavily insulated tray cable. I removed the the multiple layers of sheathing and extracted the wires. I just needed reassurance that it was allowed by code. Thanks.
    Completed: June 2011
    18' X 38' IG Vinyl, 3' - 8' depth ~ 24K gallons
    2 skimmers, 2 wall suctions, 3 returns, 1.5" piping

    Hayward Equipment: 1HP Tri-star 2-speed, Aqua-Plus SWG,
    Star-Clear Plus 175 sqft cartridge filter, Colorlogic 4.0 LED

    The Pool Cleaner 4X(suction)
    2011 Jacuzzi J-280 Hot tub

  12. Back To Top    #12

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    Re: Tinned copper?

    Well, I'm not sure what you have. Wire you stripped sheath off of may or may not be the right stuff. I DO know that #6 THHN/THWN stranded copper rated at 90 degrees C IS up to code. The ground wire needs to be insulted.
    14,000 gallon IG, Vinyl. Hayward 3/4 hp superpump, Penatair IC40 SWCG, Pentair automation, Hayward sand filter, Aqua Comfort heat pump, Hayward 400k Lo-Nox LP heater.

  13. Back To Top    #13

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    Re: Tinned copper?

    The wires appear to have a PVC insulator encased in a nylon jacket.
    Completed: June 2011
    18' X 38' IG Vinyl, 3' - 8' depth ~ 24K gallons
    2 skimmers, 2 wall suctions, 3 returns, 1.5" piping

    Hayward Equipment: 1HP Tri-star 2-speed, Aqua-Plus SWG,
    Star-Clear Plus 175 sqft cartridge filter, Colorlogic 4.0 LED

    The Pool Cleaner 4X(suction)
    2011 Jacuzzi J-280 Hot tub

  14. Back To Top    #14
    Mod Squad Bama Rambler's Avatar
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    Re: Tinned copper?

    That's THHN then.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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