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Thread: Pump bonding questions

  1. Back To Top    #1

    Join Date
    Jun 2016
    Location
    Monterrey, Mexico
    Posts
    34

    Question Pump bonding questions

    Hello guys, as some of you know I live in Mexico, so pool building codes are not clear

    I'm in the process of finishing my inground pool and now I need to know about bonding the pool pump to the bonding grid

    all of my equipment and electrical connections are In a closed cement machine room about 20 feet away from the closest inner wall of the pool

    I have already bonded the wet light niche to the rebar

    But my question is if I have to bond the transformer of the light and the pool pump to the bonding grid even though both are 20 feet away from the pool

    Being English my second language I get a bit confused about the NEC code

    Thank you for your help
    11'x21'x4.4'
    7.0K IG Concrete pool
    Hayward Swimpro 19" Sand Filter
    1HP pump
    Pentair Intellibrite 5G 500W equivalent white light

  2. Back To Top    #2

    In the Industry

    Join Date
    Dec 2014
    Location
    Houston, Texas
    Posts
    134

    Re: Pump bonding questions

    Article 680.26 details the bonding requirements for permanently installed swimming pools in order to “eliminate voltage gradients in the pool area as prescribed.” Bonding the metallic parts in and around the pool area prevents differences of potential from developing in the event of an electrical equipment fault and reduces the possibility of electric shock. The area created by bonding the metallic parts together is known as an equipotential plane.

    The NEC requires bonding all of the following metallic parts in a permanently installed swimming pool with a #8 AWG solid or larger conductor.

    Equipotential Bonding of Permanently Installed Swimming Pools

    • Concrete reinforcing steel and all metallic structural components. Uncoated reinforcing steel and all other metallic structures.
    • Underwater lighting. All metallic parts (housings and mounting brackets). This includes the transformers.
    • Metal fittings. Metal fittings for pipes, drains and water inlets.
    • Electrical equipment. All metal parts of any electrical equipment associated with the pool including pumps and recirculating equipment, heaters and blowers and automatic covers.
    • Metallic tubing and conduit, metal-sheathed cable, metal piping and all fixed metal parts.

    In addition to metal wiring methods and equipment, any component within 5’ horizontally and 12’ vertically from the water must be bonded.

    Info taken from Eritech at erico.com

  3. Back To Top    #3

    Join Date
    Jun 2016
    Location
    Monterrey, Mexico
    Posts
    34

    Re: Pump bonding questions

    I understand that as a YES

    Besides its only 20 feet of 8AWG wire from the rebar to the pump. Nothing to lose and safety to gain.
    11'x21'x4.4'
    7.0K IG Concrete pool
    Hayward Swimpro 19" Sand Filter
    1HP pump
    Pentair Intellibrite 5G 500W equivalent white light

  4. Back To Top    #4


    TFP Guide

    Join Date
    Apr 2016
    Location
    Quaker Hill, CT
    Posts
    1,246

    Re: Pump bonding questions

    The idea of bonding the pump or heater has nothing to do with distance from the pool. They are electric devices directly connected to the pool and should be bonded to the pool regardless of distance.
    Chuck-
    15x30 Above ground, Pentair Superflo VS, 19" sand filter, TF-100 test kit
    Aqua Comfort ACT750 heat pump / 6x20 ground mount solar panel / DIY automation

    Photos of 2016 Build, Inside Your Breaker Panel, Free Copy of 2017 NEC code
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  5. Back To Top    #5

    Join Date
    Jun 2016
    Location
    Monterrey, Mexico
    Posts
    34

    Re: Pump bonding questions

    Thanks!
    11'x21'x4.4'
    7.0K IG Concrete pool
    Hayward Swimpro 19" Sand Filter
    1HP pump
    Pentair Intellibrite 5G 500W equivalent white light

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