Appendix NK (RK) Electric-Ready Residential Building Provisions
Section NK101 (RK101) Electric Readiness
NK101.1 (RK101.1) Electric readiness.
Water heaters, household clothes dryers and cooking appliances that use fuel gas or liquid fuel shall comply with Sections NK101.1.1 through NK101.1.4.
NK101.1.1 (RK101.1.1) Cooking appliances.
A dedicated branch circuit outlet with a rating not less than 240 volts and not less than 40 amperes shall be installed and terminate within 3 feet (914 mm) of conventional cooking tops, conventional ovens or cooking appliances combining both.
Exception: Cooking appliances not installed in an individual dwelling unit.
NK101.1.2 (RK101.2) Household clothes dryers.
A dedicated branch circuit with a rating not less than 240 volts and not less than 30 amperes shall be installed and terminate within 3 feet (914 mm) of each household clothes dryer.
Exception: Clothes dryers not installed in an individual dwelling unit.
NK101.1.3 (RK101.1.3) Water heaters.
A dedicated branch circuit with a rating either not less than 240 volts and not less than 30 amperes, or not less than 120 volts and not less than 20 amperes, shall be installed and terminate within 3 feet (914 mm) of each water heater.
Exception: Water heaters serving multiple dwelling units in an R-2 occupancy.
NK101.1.4 (RK101.1.4) Electrification-ready circuits.
The unused conductors required by Sections NK101.1.1 through NK101.1.3 shall be labeled with the word “spare.” Space shall be reserved in the electrical panel in which the branch circuit originates for the installation of an overcurrent device. Capacity for the circuits required by Sections NK101.1.1 through NK101.1.3 shall be included in the load calculations of the original installation.