Practical Electrical Wiring: Residential, Farm, Commercial, and IndustrialThis fully updated seventeenth edition of this book-a widely-used reference for both electricians and do-it-yourselfers-provides complete, detailed instructions for making safe and efficient electrical wiring installations. Based on the 1996 National Electrical Code, the book explains not only how to perform the many operations covered but also why they are necessary. It provides the background needed for a clear understanding of electrical principles without burdening the reader with overly-complex technical explanations and advanced math. The book leads the reader step-by-step through the planning and layout of an electrical wiring system and provides complete requirements for each of the more commonly used wiring methods, overcurrent protection, grounding, and installation of devices. A wide variety of examples, tables, and illustrations prompt the user through every step of the way. |
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Page 177
... Conductor * Size of conductor Free space within box for each conductor , cu in No. 18 No. 16 No. 14 No. 12 No. 10 No ... grounding conductor entering the box from a domed fixture canopy are not counted . 4. For one or more internal cable ...
... Conductor * Size of conductor Free space within box for each conductor , cu in No. 18 No. 16 No. 14 No. 12 No. 10 No ... grounding conductor entering the box from a domed fixture canopy are not counted . 4. For one or more internal cable ...
Page 202
... Grounding Wire . Most nonmetallic - sheathed cable made today has a bare equipment grounding wire in addition to the insu- lated conductors ; see Fig . 6-5 . Cable with grounding wire was first re- quired by the 1962 Code , in runs to ...
... Grounding Wire . Most nonmetallic - sheathed cable made today has a bare equipment grounding wire in addition to the insu- lated conductors ; see Fig . 6-5 . Cable with grounding wire was first re- quired by the 1962 Code , in runs to ...
Page 315
... Grounding . As already discussed in Chap . 9 , the Code differentiates be- tween grounded conductors ( which carry ... conductor of a circuit is always white or natural gray . The grounding conductor may be bare , or insulated if green ...
... Grounding . As already discussed in Chap . 9 , the Code differentiates be- tween grounded conductors ( which carry ... conductor of a circuit is always white or natural gray . The grounding conductor may be bare , or insulated if green ...
Contents
Theory and Basic Principles | 1 |
Codes Inspections and Product Approvals | 3 |
Basic Principles | 15 |
Copyright | |
31 other sections not shown
Common terms and phrases
3-phase 3-way switches alternating current aluminum ampacity ampere rating appliances armored cable ballast black wire bonding bonding jumper branch circuits building busbar cabinet ceiling circuit breaker clamps color connected connector consumed cord cover cuit demand factor diagram disconnecting means discussed in Chap equipment grounding wire feeder floor fluorescent lamps footcandles GFCI ground-fault grounding conductor heat heater horsepower hot wires installed insulation knockout larger lighting fixtures load locknut metal conduit meter socket minimum motor mounted National Electrical Code NEC Art NEC Sec NEC Table neutral wire nonmetallic opening operate ordinary outlet box overcurrent device overcurrent protection overload device panelboard permitted plug pole raceway receptacle screw service equipment service-entrance shown in Fig single-phase sizes small appliance smaller Source splice sq ft supply switch box temperature terminal tion transformer type shown UL Listed usually volt-amperes voltage drop volts wall white wire