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Illustrated Changes to the NEC, 2005 Edition - Part 2

Article 680

Swimming Pools, Spas, Hot Tubs, Fountains, and Similar Installations

680.26 Equipotential Bonding

The term a€œEquipotential Bondinga€ was added to the title to clarify that the purpose of bonding is to reduce electric shock from stray voltage.

Fine Print Note converted into a Code requirement to specify that a€œequipotential bonding conductors aren't required to extend to any panelboard, service equipment, or an electrode.a€

(A) Performance. Equipotential bonding is intended to reduce or eliminate voltage gradients from stray voltage in the permanently installed pool, outdoor spa, and outdoor hot tub area by forming a common bonding grid.

Author's Comment: Equipotential bonding isn't intended to provide a low-impedance ground-fault current path to help assist in clearing a ground fault.

The 8 AWG or larger solid copper equipotential bonding conductor [680.26(C)] isn't required to extended to or be attached to any panelboard, service equipment, or an electrode.

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