Chapter 4 Wiring Systems
75
Copyright Goodheart-Willcox Co., Inc.
• Surroundings of dwelling (hot, cold, wet,
or dry)
• Cost of the electrical materials
• Contractor’s preference
• Building code requirements
• Preference of owner (client)
Cables
A cable is an arrangement of two or more
conductors in a protective covering and is
assembled by the manufacturer. The protec-
tive covering may be plastic, rubber, steel, or
aluminum.
Armored Cable: Type AC — Article 320
Locations Allowed
Dry
Sizes
14 AWG
through
1 AWG
Maximum Mounting Distance
12″
4 1/2′
Power
panel
Wiring method
(cable or conduit)
Receptacle
box
Junction
box
Switch
box
Terminal box
(for light fixture)
Figure 4-4. Simple sketch of a wiring system. It is the part of the circuit that carries current from the source through
the boxes to a load.
cable: An arrangement of two or more conductors in a
protective covering assembled by the manufacturer.