Practical Electrical Wiring; Residential, Farm, and Industrial |
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Page 145
... box similar to the one shown in Fig . 10- 1 but only 3/4 in . in size . The two are more or less interchangeable ; the larger size is by far the more common because it is ... boxes are provided with clamps ,. Outlet and Switch Boxes 145.
... box similar to the one shown in Fig . 10- 1 but only 3/4 in . in size . The two are more or less interchangeable ; the larger size is by far the more common because it is ... boxes are provided with clamps ,. Outlet and Switch Boxes 145.
Page 382
... box ; install the box on the hanger , the ends of which have been bent upward ; and nail the hanger with the box into place . Ears on Switch Boxes . The mounting ears on the ends of switch boxes are adjustable to compensate for various ...
... box ; install the box on the hanger , the ends of which have been bent upward ; and nail the hanger with the box into place . Ears on Switch Boxes . The mounting ears on the ends of switch boxes are adjustable to compensate for various ...
Page 383
... Switch Boxes . In cutting the opening for the switch box , take into consideration the dimensions of the box compared with the width of lath . The ordinary switch box is 3 in . long , while two laths plus three spaces between laths ...
... Switch Boxes . In cutting the opening for the switch box , take into consideration the dimensions of the box compared with the width of lath . The ordinary switch box is 3 in . long , while two laths plus three spaces between laths ...
Contents
Preface PART 1 Theory and Basic Principles | 1 |
Underwriters and Codes | 3 |
Basic Principles and Measurements | 15 |
Copyright | |
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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