(A) All wire shall be number 12 copper or larger. All receptacles in basements, garages, bathrooms, and kitchen counter spaces shall be a grounded type. Receptacles installed on number 3 wire, 30-amp and 50-amp branch circuits may not be of the grounded type as the National Electrical Code permits the grounded neutral conductor to serve as the equipment ground for ranges and clothes dryers served by 120/240 volt three-wire circuits. These are the only appliances wherein the neutral may be used for an equipment ground.
(B) A minimum of three-wire number 10 copper with ground is required for water heaters of 30 gallons or more capacity. In all cases, the white colored covered wire or bare wire shall be used to ground the frame of the water heater.
(1) If a breaker-type service panel is used, the water heater may be connected to a 30-amp two-pole breaker in the main (distribution) panel.
(2) In a fused-type main panel, the water heater shall be connected to a 30-amp pullout circuit protector.
(3) Any water heater or dryer located a distance greater than ten feet from the main service panel shall have a separate 30-amp disconnecting means located within five feet of the appliance. Fusing shall not exceed the capacity of the wire. The number 10 wire may run a maximum distance of 50 feet. If the run distance is greater than 50 feet, the wire shall be one size larger (size number 8).
(a) A minimum of three number 10 copper wires shall also apply to the dryer.
(b) Three number 6 copper wires shall be used for 50-amp range circuits.
(Ord. 7-1992, passed 12-21-1992) Penalty, see § 51.999