Practical Electrical Wiring: Residential, Farm, and Industrial |
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Page 321
... Black- S " X " . " Black ( A ) Source ( B ) CLA - O Black ( c ) White White Source Source Black Black " Y Black ... wire from the outlet box to the switch , but also the wire from the switch to the fixture , should be a black wire ...
... Black- S " X " . " Black ( A ) Source ( B ) CLA - O Black ( c ) White White Source Source Black Black " Y Black ... wire from the outlet box to the switch , but also the wire from the switch to the fixture , should be a black wire ...
Page 322
... black wire , even if this does not comply with the general rule that reserves the white wire for grounded wires only . Under this ex- ception the cable may be used provided that the white wire from SOURCE , and the black wire from the ...
... black wire , even if this does not comply with the general rule that reserves the white wire for grounded wires only . Under this ex- ception the cable may be used provided that the white wire from SOURCE , and the black wire from the ...
Page 329
... black wire from SOURCE directly to the common or marked terminal of either switch . From the corresponding common or marked terminal of the other switch , run a black wire directly to the proper terminal on the fixture . From the ...
... black wire from SOURCE directly to the common or marked terminal of either switch . From the corresponding common or marked terminal of the other switch , run a black wire directly to the proper terminal on the fixture . From the ...
Contents
Theory and Basic Principles | 1 |
Codes Inspections and Product Approvals | 3 |
Basic Principles | 15 |
Copyright | |
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2-wire circuits 3-phase alternating current aluminum ampacity ampere rating armored cable black wire bonding jumper branch circuit building busbar cabinet ceiling circuit breaker clamps clothes dryer color conductors connected connector copyright 1980 cord cover cuit demand factor diagram disconnecting means discussed in Chap equipment grounding wire farm feeder Fire Protection Association fluorescent lamps footcandles GFCI ground-fault grounding conductor heat heater horsepower hot wires installed insulation larger lighting fixtures locknut maximum metal conduit minimum motor National Electrical Code NEC Sec NEC Table neutral wire nonmetallic operated ordinary outlet box overcurrent device overcurrent protection overload device panelboard plug pole raceway range Reproduced with permission screw service equipment service-entrance shown in Fig single-phase sizes small appliance smaller Source splice sq ft switch box temperature terminal tion tional Fire Protection transformer type shown usually voltage drop volts wall watts white wire