Change No. 22: Section 680.74 (Equipotential Bonding)
The rules for bonding hydromassage tubs have been reorganized and revised. (A) General. The following parts must be bonded together. (1) Metal fittings within or attached to the hydromassage tub structure that are in contact with the circulating water. (2) Metal parts of electrical equipment associated with the hydromassage tub water circulating system, including pump and blower motors. (3) Metal-sheathed cables, metal raceways, and metal piping within 5 ft of the inside walls of the ...
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