Practical Electrical Wiring; Residential, Farm, and Industrial |
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Page 132
... WIRE SOURCE N B 115 V. 230 V. 115 V. GROUND CONNECTION Fig . 9-1 Using only three wires , two different voltages are available . The neutral wire N is grounded . White Neutral Wire . As already mentioned , the white wire is known as the ...
... WIRE SOURCE N B 115 V. 230 V. 115 V. GROUND CONNECTION Fig . 9-1 Using only three wires , two different voltages are available . The neutral wire N is grounded . White Neutral Wire . As already mentioned , the white wire is known as the ...
Page 322
... white wire from SOURCE to the fixture . With these facts in mind , the wiring of any combination of 3 - way switches ... wire from SOURCE through the switch boxes up to the outlet where the fixture is to be used ; run the black wire from ...
... white wire from SOURCE to the fixture . With these facts in mind , the wiring of any combination of 3 - way switches ... wire from SOURCE through the switch boxes up to the outlet where the fixture is to be used ; run the black wire from ...
Page 323
... wires : the black wire from SOURCE and the white wire of the next run of cable . Connect them together , con- trary to the general rule but permitted by the Code for switch loops . From the first 3 - way switch to the second , 3 - wire ...
... wires : the black wire from SOURCE and the white wire of the next run of cable . Connect them together , con- trary to the general rule but permitted by the Code for switch loops . From the first 3 - way switch to the second , 3 - wire ...
Contents
Preface | 1 |
Underwriters and Codes | 3 |
Basic Principles and Measurements | 15 |
Copyright | |
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Common terms and phrases
2-wire circuits 3-phase 3-way switches alternating current ampacity amperage amperes armored cable black wire branch circuit building cabinet ceiling Chap chapter circuit breaker circular mils clothes dryer Code in Sec Code requires Code Sec color conductors conduit connected connector consumed copper cord demand factor diameter disconnecting means discussed dry locations Electric equipment farm feeder Fixture wiring floor flow fluorescent lamp footcandles full-load current grounding wire heat horsepower hot wires installed insulation larger light locknut lumens maximum metal method minimum motor mounted neutral wire nonmetallic-sheathed cable opening operating ordinary outlet box overcurrent device overcurrent protection panelboard plug pole raceway range receptacle outlets screws service entrance service switch service-entrance shown in Fig similar single-phase sizes small appliance smaller solder sq ft switch box temperature terminal THHN tion transformer type shown usually voltage drop volts wall wattage watts white wire