Terms of Use......Page 5
Want to learn more?......Page 6
Contents......Page 9
Contributing Editors......Page 13
Preface......Page 15
Introduction to the National Electrical Codeยฎ......Page 17
Brief History of the National Electrical Codeยฎ......Page 19
About the 2005 NE Codeยฎ......Page 21
90 Introduction......Page 25
100 Definitions......Page 37
110 Requirements for Electrical Installations......Page 74
200 Use and Identification of Grounded Conductors......Page 117
210 Banch Circuits......Page 125
215 Feeders......Page 204
220 Branch-Circuit, Feeder, and Service Calculations......Page 225
225 Outside Branch Circuits and Feeders......Page 262
230 Services......Page 273
240 Overcurrent Protection......Page 334
250 Grounding and Bonding......Page 382
280 Surge Arresters......Page 530
285 Transient Voltage Surge Suppressors (TVSS)......Page 533
300 Wiring Methods......Page 535
310 Conductors for General Wiring......Page 592
312 Cabinets, Cutout Boxes, and Meter Socket Enclosures......Page 641
314 Outlet, Device, Pull, and Junction Boxes; Conduit Bodies; Fittings; and Handhole Enclosures......Page 648
320 Armored Cable......Page 685
324 Flat Conductor Cable: Type FCC......Page 693
326 Integrated Gas Spacer Cable: Type IGS......Page 697
328 Medium Voltage Cable: Type MV......Page 698
330 Metal-Clad Cable......Page 700
332 Mineral-Insulated, Metal-Sheathed Cable......Page 705
334 Nonmetallic-Sheathed Cable......Page 708
336 Power and Control Tray Cable: Type TC......Page 716
338 Service-Entrance Cable......Page 718
340 Underground Feeder and Branch-Circuit Cable......Page 724
342 Intermediate Metal Conduit......Page 728
344 Rigid Metal Conduit......Page 731
348 Flexible Metal Conduit: Type FMC......Page 740
350 Liquidtight Flexible Metal Conduit: Type LFMC......Page 745
352 Rigid Nonmetallic Conduit......Page 748
353 High Density Poleethelene Conduit Type HDPE Conduit......Page 757
358 Electrical Metallic Tubing: Type EMT......Page 758
360 Flexible Metallic Tubing: Type FMC......Page 762
362 Electrical Nonmetallic Tubing: Type ENT......Page 763
366 Auxiliary Gutters......Page 765
368 Busways......Page 770
370 Cablebus......Page 781
372 Cellular Concrete Floor Raceways......Page 782
374 Cellular Metal Floor Raceways......Page 784
376 Metal Wireways......Page 786
384 Strut-Type Channel Raceway......Page 789
386 Surface Metal Raceways......Page 790
390 Underfloor Raceways......Page 792
392 Cable Trays......Page 794
394 Concealed Knob-and-Tube Wiring......Page 807
398 Open Wiring on Insulators......Page 808
400 Flexible Cords and Cables......Page 813
402 Fixture Wires......Page 818
404 Switches......Page 819
406 Receptacles, Cord Connectors, and Attachment Plugs (CAPS)......Page 830
408 Switchboards and Panelboards......Page 838
409 Industrial Control Panels......Page 863
410 Luminaires, Lampholders, and Lamps......Page 864
422 Appliances......Page 894
424 Fixed Electric Space-Heating Equipment......Page 901
426 Fixed Outdoor Electric Deicing and Snow-Melting Equipment......Page 919
427 Fixed Electric Heating Equipment for Pipelines and Vessels......Page 921
430 Motors, Motor Circuits, and Controllers......Page 922
440 Air-Conditioning and Refrigerating Equipment......Page 1004
445 Generators......Page 1026
450 Transformers and Transformer Vaults (Including Secondary Ties)......Page 1029
460 Capacitors......Page 1064
480 Storage Batteries......Page 1076
490 Equipment Over 600 Volts Nominal......Page 1078
501 Class I Locations......Page 1093
502 Class II Locations......Page 1149
503 Class III Locations......Page 1155
504 Intrinsically Safe Systems......Page 1157
505 Class I, Zone 0, 1, and 2 Locations......Page 1158
511 Commercial Garages, Repair and Storage......Page 1159
514 Gasoline Dispensing and Service Stations......Page 1163
515 Bulk Storage Plants......Page 1170
516 Spray Application, Dipping, and Coating Processes......Page 1172
517 Health Care Facilities......Page 1174
518 Places of Assembly......Page 1193
520 Theaters, Audience Areas of Motion Picture and Television Studios, and Similar Locations......Page 1194
530 Motion Picture and Television Studios and Similar Locations......Page 1198
540 Motion Picture Projection Rooms......Page 1199
547 Agricultural Buildings......Page 1202
550 Mobile Homes, Manufactured Homes, and Mobile Home Parks......Page 1205
553 Floating Buildings......Page 1208
555 Marinas and Boatyards......Page 1209
590 Temporary Wiring......Page 1214
600 Electric Signs and Outline Lighting......Page 1229
604 Manufactured Wiring Systems......Page 1232
605 Office Furnishings (Consisting of Lighting Accessories and Wired Partitions)......Page 1233
610 Cranes and Hoists......Page 1235
625 Electrical Vehicle Charging Systems......Page 1236
630 Electric Welders......Page 1237
640 Sound-Recording and Similar Equipment......Page 1238
645 Information Technology Equipment......Page 1240
650 Pipe Organs......Page 1246
660 X-ray Equipment......Page 1247
665 Induction and Dielectric Heating Equipment......Page 1248
668 Electrolytic Cells......Page 1250
680 Swimming Pools, Fountains, and Similar Installations......Page 1252
690 Solar Photovoltaic Systems......Page 1280
700 Emergency Systems......Page 1281
702 Optional Standby Systems......Page 1298
705 Interconnected Electric Power Production Sources......Page 1300
720 Circuits and Equipment Operating at Less Than 50 Volts......Page 1301
725 Class 1, Class 2, and Class 3 Remote-Control, Signaling, and Power-Limited Circuits......Page 1302
760 Fire Alarm Systems......Page 1318
770 Optical Fiber Cables and Raceways......Page 1319
810 Radio and Television Equipment......Page 1325
Annex A. Product Safety Standards......Page 1327
Annex B. Application Information for Ampacity Calculation......Page 1329
Annex D. Examples......Page 1330
Annex G. Administration and Enforcement......Page 1340
Index......Page 1343
About the Authors......Page 1370