Practical Electrical Wiring, Residential, Farm, and Industrial |
Contents
THEORY AND BASIC PRINCIPLES | 1 |
Underwriters and Codes | 3 |
Basic Principles and Measurements | 14 |
Copyright | |
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3-phase 3-way switches alternating current amperage amperes appliances armored cable battery black wire branch circuits building bulb candle power carrying capacity ceiling cent chapter circuit breaker Code in Sec Code requires color conductor conduit connected connector controlled covered diagram diameter direct current disconnecting means electrical equipment feeder fixture floor flow fluorescent lamp foot-candles fuses grounded wire heater horsepower illumination installation insulation knob and tube Lath light load locations locknut lumens maximum metal meter minimum motor mounted National Elec National Electrical Code neutral wire opening operating ordinary outlet box overcurrent device overcurrent protection permitted plaster pull receptacle outlets rubber rubber-covered wire screw separate service entrance wires service switch shown in Fig simple single-phase sizes socket solder square stranded switch box switch loop Table terminal transformer type shown Underwriters usually voltage drop volts wall watt-hours wattage watts weatherproof white wire wire from SOURCE wires run