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9780766834477

Electrical Raceways and Other Wiring Methods

by
  • ISBN13:

    9780766834477

  • ISBN10:

    0766834476

  • Edition: 4th
  • Format: Paperback
  • Copyright: 2001-12-27
  • Publisher: CENGAGE Delmar Learning
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List Price: $83.95

Summary

If there is one book every professional electrical designer, installation electrician, electrical inspector, consulting engineer, and contractor cannot afford to be without, it's Electrical Raceways and Other Wiring Methods by the authority on all things electrical, Richard Loyd! From power source to end-use equipment, this one-of-a-kind electrician's handbook details specific design criteria, wiring methods, and materials for all types of installations as required by the 2002 National Electrical Code (NEC®). This is especially important, since the wiring section in the 2002 NEC® constitutes the largest and most sweeping change to the Code® in recent history. Other important NFPA standards are also referenced throughout the book as appropriate, making this the single most authoritative building design how-to and reference book available today.

Table of Contents

Forewordp. ix
Prefacep. xi
Acknowledgmentsp. xv
About the Authorp. xvii
Codes and Standards in Wiring and Building Designp. 1
Purposep. 1
National Fire Protection Association (NFPA) Standardsp. 1
National Electrical Code (NEC)p. 2
Using the NECp. 2
The 2002 NEC Significant Changesp. 4
NEC 2002p. 5
Other Standardsp. 7
American National Standards Institute (ANSI)p. 7
NEMA and IEC Standardsp. 7
Federal Government Standardsp. 8
Local Codes and Requirementsp. 8
Insurance Requirementsp. 8
Approved Testing Laboratoriesp. 8
Occupational Safety and Health Act (OSHA)p. 11
Review Questionsp. 11
Basic Design Factorsp. 13
Safetyp. 13
Capacityp. 13
Flexibilityp. 14
Electrical Systems and Building Firesp. 14
Fire Resistance and Spread of Fire and Smokep. 14
Voltage Selectionp. 15
Distributionp. 15
Utilizationp. 17
Electromagnetic Fields Theory (EMI-EMF)p. 19
Harmonics Effects on the Electrical Systemp. 21
Harmonics, the Problemp. 25
Review Questionsp. 25
Conductor Considerationsp. 27
Ambient Temperature Considerationsp. 27
Insulationp. 29
Conductor Ampacity Adjustment Factorsp. 36
Allowable Conductor Fill (More than Three Conductors in a Raceway)p. 36
Voltage Dropp. 41
Conductors Run in Parallelp. 42
Neutral Conductor (Grounded Conductor)p. 45
Equipment Grounding Conductorsp. 47
Capable of Carrying the Available Fault Currentp. 54
Review Questionsp. 59
General Circuit Requirementsp. 61
Overcurrentp. 63
Heatingp. 64
Magneticp. 64
Circuit Breakersp. 66
Fusesp. 67
Branch-Circuitsp. 70
Color-Codingp. 73
Service-Entrance Conductorsp. 78
Review Questionsp. 83
General Raceway Installation Requirementsp. 85
Protection Against Physical Damagep. 85
Underground Requirementsp. 88
Exposed to Different Temperaturesp. 88
Expansion Properties of Racewaysp. 88
Securing and Support Requirementsp. 93
Mechanical and Electrical Continuityp. 96
Induction Heatingp. 96
Resistance to Deterioration from Corrosion and Reagentsp. 97
Penetration of Fire-Resistant Assembliesp. 101
Combustibility of Raceway Materials and Conductor Insulationp. 104
Wiring in Ducts, Plenums, and Other Air-Handling Spacesp. 105
Raceway Allowable Conductor Fillp. 106
Conduit and Tubing Bendingp. 107
Review Questionsp. 114
Raceway Systemsp. 117
History of Racewayp. 117
Advantages of Raceway Systemsp. 118
Types of Metallic Raceway Systemsp. 119
Types of Nonmetallic Racewaysp. 134
Cable Tray Support Systems NEC Article 392p. 142
Other Types of Racewaysp. 145
Review Questionsp. 151
Other Wiring Methodsp. 153
Open Wiring on Insulators NEC Article 398p. 153
Messenger-Supported Wiring NEC Article 396p. 153
Concealed Knob-and-Tube Wiring NEC Article 394p. 154
Integrated Gas-Spacer Cable--Type IGS NEC Article 326p. 154
Medium-Voltage Cable--Type MV NEC Article 328p. 155
Flat Conductor Cable--Type FCC NEC Article 324p. 155
Mineral-Insulated, Metal-Sheathed Cable--Type MI NEC Article 332p. 156
Armored Cable--Type AC NEC Article 320p. 157
Metal-Clad Cable--Type MC NEC Article 330p. 158
Nonmetallic-Sheathed Cable--Types NM and NMC NEC Article 334p. 160
Service-Entrance Cable--Types SE and USE NEC Article 338p. 162
Underground Feeder and Branch-Circuit Cable--Type UF NEC Article 340p. 163
Power and Control Tray Cable--Type TC NEC Article 336p. 164
Nonmetallic Extensions NEC Article 382p. 165
Underground Cable in Nonmetallic Conduit with Conductors--Type NUCC NEC Article 354p. 166
Flat Cable Assemblies--Type FC NEC Article 322p. 166
Review Questionsp. 167
Boxes, Enclosures, Fittings, and Accessoriesp. 169
Enclosure Application and Installation Guidelinesp. 169
Bushingsp. 172
Couplings and Connectorsp. 172
Conduit Bends and Elbowsp. 174
Conduit Bodies NEC Article 314p. 177
Outlet Device, Pull, and Junction Boxes NEC Article 314p. 177
Fixture and Fan Supportp. 182
Cables and Conductors in Raceway Required Supportsp. 183
Cabinets and Cutout Boxes--UL 50 NEC Article 312p. 184
Hardware, Supports, Clips, and Strapsp. 186
Switchboards and Panelboards NEC Article 408p. 186
Review Questionsp. 189
Hazardous Locationsp. 191
Code Classificationsp. 191
Classification of Areap. 198
Class Ip. 199
Equipment for Class I Locations--Divisions 1 and 2p. 200
Wiring Methods--Divisions 1 and 2p. 204
Sealing Requirements--Divisions 1 and 2p. 207
Class IIp. 209
Wiring Methodsp. 209
Sealing Requirementsp. 213
Class III Locationsp. 213
Wiring Methodsp. 213
Sealing Requirementsp. 213
Commercial Garages, Repair, and Storage NEC Article 511p. 213
Aircraft Hangars NEC Article 513p. 215
Gasoline Dispensing and Service Stations and Bulk Storage Plants NEC Article 514p. 216
Spray Application, Dipping, and Coating Processes NEC Article 516p. 220
Health Care Facilities, Residential and Custodial Facilities, and Limited Care Facilitiesp. 223
Intrinsically Safe Systems--NEC Article 504p. 224
Nonincendivep. 225
Review Questionsp. 225
Codes and Standardsp. 227
Allowable Ampacity of Multiple Conductors in Racewayp. 227
Impedance Factors for Finding Voltage Drop in Copper Conductorsp. 229
General Lighting Loadsp. 230
Uses for Raceway and Other Wiring Methodsp. 231
Load and Circuit Chart for Residential Electrical Systemsp. 232
Basic Electrical Formulasp. 233
Electrical Wiring Symbolsp. 235
Approximate Diameters for Conduit, Locknuts, and Bushingsp. 239
Recommended Minimum Spacing of Rigid Steel Conduit and EMT at Junction and Pull Boxesp. 239
I.D. and O.D. Type AC Cablep. 240
Kwik Fittings Conduit and Tubingp. 260
Environmental Resistance Ratings--Nonmetallic Wiring Methodsp. 261
Chemical Resistance Charts--Coated Conduit (Metal)p. 262
Hazardous Substances Flashpoint, Ignition Temperatures--Gases and Vaporsp. 264
Hazardous Substances Flashpoint, Ignition Temperatures--Dustp. 267
American Wire Gauge Tablep. 269
Maximum Length of EMT as Equipment Grounding Circuit Conductorp. 270
Maximum Length of IMC as Equipment Grounding Circuit Conductorp. 271
Maximum Length of GRC as Equipment Grounding Circuit Conductorp. 272
Maximum Length of EGC as Equipment Grounding Circuit Conductorp. 273
Maximum Length EGC (Steel EMT, IMC, GRC, and Copper, Copperclad, or Aluminum Wire) as Return Fault Path to Overcurrent Devicep. 274
Maximum Length EGC (Steel EMT, IMC, GRC, and Copper, Copperclad, or Aluminum Wire) as Return Fault Path to Overcurrent Devicep. 275
Comparison of the Two Systems for Hazardous Locationsp. 276
Alternative Area Classificationp. 277
Indexp. 279
Table of Contents provided by Syndetics. All Rights Reserved.

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