1. Except as provided by subsections 2 and 3 of this section, all electrical wires conducting electrical energy in excess of 32 volts in or upon the following specified buildings and structures shall be enclosed in metal conduit or metal raceway.
A. All buildings and structures within the fire limits of the City of Denison, Iowa.
B. All schools, hospitals, churches, and institutions of every kind for the care or treatment of persons.
C. All club houses and social or community center buildings.
D. All public and utility buildings.
E. All garages with floor space for three or more cars.
F. All gasoline service stations.
2. Flexible metal conduit or any conduit acceptable under the National Electrical Code may be used in lieu of rigid metal conduit under the following conditions:
A. In the remodeling or repair of existing buildings and structures where existing wiring is to be extended or relocated in concealed locations and the use of metal conduit is impractical. In exposed locations in such buildings and structures non-flexible metal raceway may be used.
B. For connections to motors, removable reflectors and similar installations requiring frequent removal or adjustment for a distance not in excess of six feet or for any distance acceptable under the Electrical Code.
3. In the remodeling or repair of existing one- and two-family dwellings within the fire limits of the City, where existing wiring is to be extended or relocated in concealed locations, Romex cable may be used.