Practical Electrical Wiring; Residential, Farm, and Industrial |
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Page 392
... Floor to First . If the first - floor partition is directly below the second - floor partition , it is usually simple to bring the cable through by boring , as indicated by arrows 2 and 3 ( or 3 and 4 ) in Fig . 22- 19. Use good ...
... Floor to First . If the first - floor partition is directly below the second - floor partition , it is usually simple to bring the cable through by boring , as indicated by arrows 2 and 3 ( or 3 and 4 ) in Fig . 22- 19. Use good ...
Page 393
... floor boards in the floor above . This should be avoided if possible , but where necessary use extreme care in lifting the boards so that when replaced there will be no visible damage to the floor . Attic flooring is simply lifted , but ...
... floor boards in the floor above . This should be avoided if possible , but where necessary use extreme care in lifting the boards so that when replaced there will be no visible damage to the floor . Attic flooring is simply lifted , but ...
Page 450
... floor shall have service equipment grouped in a com- mon accessible place , the disconnecting means consisting of not more than six switches or six circuit breakers . Multiple- occupancy buildings that do not have individual occupancy ...
... floor shall have service equipment grouped in a com- mon accessible place , the disconnecting means consisting of not more than six switches or six circuit breakers . Multiple- occupancy buildings that do not have individual occupancy ...
Contents
Preface | 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