Facinating!
Does this tub or house have the Xformer feed or other Service lat's running though the property in some way? Maybe damage there water line and ground rod stuck in it?
![[Linked Image]](https://www.electrical-contractor.net/ubb/biggrin.gif)
Or may the lack of a water line and rod....
Still have a grounding and bonding issue though. The ground issue may belong to the POCO, and at this Service. But I would
still definiatley bond the ground lug of the hot tub to that pad its on. Or any other conductive surface associated with getting in or out of it. (technically 5 feet around it)As so far this is the highest potential to earth on the system now, for whatever reason. Bust the pad to exose some rebar, and bond it to the the tub motor or ground lug.
680.26B,1 Metallic Structural Components. All metallic parts of the pool structure, including the reinforcing metal of the pool shell, coping stones, and deck, shall be bonded. The usual steel tie wires shall be considered suitable for bonding the reinforcing steel together, and welding or special clamping shall not be required. These tie wires shall be made tight. If reinforcing steel is effectively insulated by an encapsulating nonconductive compound at the time of manufacture and installation, it shall not be required to be bonded. Where reinforcing steel is encapsulated with a nonconductive compound, provisions shall be made for an alternate means to eliminate voltage gradients that would otherwise be provided by unencapsulated, bonded reinforcing steel.
Article 680 applies to decorative pools and fountains; swimming, wading, and wave pools; therapeutic tubs and tanks; hot tubs; spas; hydromassage bathtubs; and similar installations. The installations covered by this article can be indoors or outdoors, permanent or storable, and may or may not be directly supplied by electrical circuits of any nature.
Studies conducted by Underwriters Laboratories, various manufacturers, and others indicate that a person in a swimming pool can receive a severe electric shock by reaching over and touching the energized casing of a faulty appliance — such as a radio or a hair dryer — as the person's body establishes a conductive path through the water to earth. Also, a person not in contact with a faulty appliance or any grounded object can receive an electric shock and be rendered immobile by a potential gradient in the water itself. Accordingly, the requirements of Article 680 covering effective bonding and grounding, installation of receptacles and luminaires, use of ground-fault circuit interrupters, modified wiring methods, and so on, apply not only to the installation of the pool but also to installations and equipment adjacent to or associated with the pool.
[This message has been edited by e57 (edited 09-03-2004).]
