Residential Wiring Conductors Regulating Bodies Diagrams Residential Wiring
Residential Wiring Conductors, Regulating Bodies, & Diagrams
Residential Wiring • A house must be wired properly to prevent fires. Wires of correct size must be used to make sure consuming devices receive the correct amount of current. • The diameter of wire determines the amount of current that can safely flow through it.
Wire Size • Wires are sized according to a table known as the American Wire Gauge (AWG). The larger the number the smaller the diameter of the wire.
Wire Size • #22 AWG wire: used for • # 8 AWG wire: used for • • telephone #18 AWG wire: used for door bell chimes #14 & #12 AWG wire: used for lights, switches, receptacles, base board heaters, hot water boilers. #10 AWG wire: used for electric dryers • electric range #2 AWG wire: used for whole house ground wire #000 or #0000 AWG wire: used for service entrance and cables.
Color Code • Hot Wire: is usually black or some other color than white or green. Neutral Wire: is white. It is grounded at the main switch and runs to each 120 v outlet without interruption. • Ground Wire: is green or bare copper. • Note: The color of the outer sheathing is of no significance, only the color of the inside insulation.
Color Code / 2 -Wire Circuits • Black & White wires: used for lights and receptacles indicates 110 v A. C. present • Black & Red wires; used for electric heaters and hot water boilers. Indicates 220 v A. C. is present. • Black and red wires may also be used between switch and lighting outlet.
Color Code / 3 -Wire Circuits • Black, Red, & White or Green: Used for electric dryers and ranges.
Schematics & Symbols • Switch Types § § § Single Pole Double Pole Three Way Four Way Switch & Pilot Light
Schematics & Symbols • Receptacle / Outlets § § § Single Receptacle Duplex Receptacle Triplex Receptacle GFCI Range Outlet
Electrical Components & Tools Wire Strippers/Crimpers Octagon or Junction Box Insulated Electrical Screwdrivers Wire Sheathing Strippers
Electrical Components & Tools Marrettes / Wire Nuts Lineman Pliers Needle Nose Pliers Electrical Staple
Electrical Components & Tools Receptacle /Switch Box Switch Plates Lampholder/Rossette Receptacle Plate
Electrical Components & Tools
Residential Wiring Conductors, Regulating Bodies, & Diagrams
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