2836                            County Local Laws

shall be considered as a single-motor unit unless the name plate is
otherwise marked. When marked to indicate two or more motors,
see Section 430-53.

(c) Each room air conditioning unit, regardless of current rat-
ing, shall be served by an individual circuit of not less than No. 12
wire.

83-66. New Section 422-45 added.

A new Section 422-45 is hereby added to the 1968 National
Electrical Code adopted by this Chapter to follow immediately after
Section 422-44 thereof, and to read as follows:

G. Provision for Electric Dryers 422-45 Circuit Requirements.
Every electric clothes dryer shall be served by an individual circuit
of not less than No. 8 wire.

83-67. Section 520-4 amended.

Section 520-4 of the 1968 National Electrical Code adopted by
this Chapter is hereby amended to read as follows:

520-4. Wiring Method.

The wiring method shall be metal raceways, Type ALS cable or
Type MI cable except as follows:

Exception No. 1. As provided in Article 640, Sound Reproduc-
tion, in Article 800, Communication Circuits, and in Article 725 for
Class 2 Remote Control and Signal Circuits.

Exception No. 4. The wiring for any area of the building not
has a capacity of less than 200 persons, Type AC metal-clad cable as
provided in Article 334 may be used, or for concealed work, concealed
knob-and-tube work or nonmetallic sheathed cable as provided in
Articles 324 and 336 may also be used.

For recommendations for determination of population capacity,
refer to Life Safety Code (NFPA No. 101).

Exception No. 3. The wiring for stage set lighting and stage
effects and other wiring which is not fixed as to location shall be done
with approved portable cables and approved flexible cords.

"Exception No. 4. The wiring for any area of the building not
provided for elsewhere in this section shall be in metal raceways un-
less separated from other areas of the building by concrete floors, fire
walls and/or fire doors.

83-68. Section 680-4 amended.

Section 680-4 of the 1968 National Electrical Code adopted by this
Chapter is hereby amended to read as follows: