Guide to the National Electrical Code 1999,9780138621377

Guide to the National Electrical Code 1999

by ;
ISBN13: 9780138621377
ISBN10: 0138621373
Format: Hardcover
Pub. Date: 1998-12-01
Publisher(s): Prentice Hall
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Summary

Updated to include all the changes required by the 1993 National Electrical Code, this guide explains the Code in detail with references to each specific Code artical. Covers services, feeders, and branch circuits; general design calculations; calculations for dwellings; circuit design for commercial and industrial occupancies; and more. For electrical inspectors, master electricians, journeyman electricians, electrical designers and engineers.

Table of Contents

Preface to the 1999 Edition vii(2)
Preface to the First Edition ix
1 Introduction
1(12)
1-1. The Master Electrician and the Master Electrician's Examination
1(4)
1-2. How to Use This Guide
5(1)
1-3. The National Electrical Code
6(1)
1-4. State and Local Codes and Ordinances
7(6)
PART 1--WIRING DESIGN CALCULATIONS 13(172)
2 Services, Feeders, and Branch Circuits
13(23)
2-1. The Electrical System
13(4)
2-2. Services
17(6)
2-2.1 General Design Rules for Services
2-2.2 Sample Service Calculation
2-2.3 Three-Phase Services
2-3. Feeders
23(7)
2-3.1 General Feeder Design Rules
2-3.2 Sample Feeder Calculation Using Demand Factors
2-4. Branch Circuits
30(3)
2-4.1 General Branch--Circuit Design Rules
2-4.2 Branch--Circuit Calculation Techniques
2-5. Other Design Considerations
33(3)
3 General Design Calculations
36(79)
3-1. Branch-Circuit Load Calculations
37(42)
3-1.1 Lighting and Receptacle Branch Circuits
3-1.2 Motor Branch Circuits
3-1.3 Individual Appliance Branch Circuits
3-1.4 Branch Circuits for Space-Heating Equipment
3-1.5 Branch Circuits for Air-Conditioning Equipment
3-1.6 Mixed Loads on Branch Circuits
3-1.7 Branch-Circuit Design Summary
3-2. Feeder or Service Calculations
79(36)
3-2.1 Feeders for Lighting and Receptacle Circuits
3-2.2 Feeders for Motor Circuits
3-2.3 Feeders for Appliances and Electric Space Heating
3-2.4 Feeder Design Summary
3-2.5 Special Feeder Problems
4 Calculations for Dwelling Type Occupancies
115(40)
4-1. One-Family Dwelling and Individual Dwelling Units
116(24)
4-1.1 Branch-Circuit Design for Dwellings
4-1.2 Standard Calculation for Computing Feeder or Service Loads for Dwelling Units
4-1.3 Optional Calculations for Computing Feeder or Service Loads
4-1.4 Optional Calculations for Additional Loads in Existing Dwelling Units
4-1.5 Complete Design Example for One-Family Dwellings
4-2. Multifamily Dwelling Calculations
140(10)
4-2.1 Standard Calculation for Computing Feeder or Service Loads in Multifamily Dwellings
4-2.2 Optional Calculation for Multifamily Dwellings
4-2.3 Optional Calculation for Two-Family Dwellings
4-2.4 Complete Design Examples for Multifamily Dwellings
4-3. Special Multifamily Dwelling Problems
150(5)
5 Electrical Circuit Design for Commercial and Industrial Occupancies
155(30)
5-1. Typical Commercial Occupancy Calculations
156(13)
5-1.1 Design Example for a Store with Show Window
5-1.2 Design Example for an Office Building
5-1.3 Design Example for an Office Building with Warehouse
5-2. Feeder and Service Design for Other Commercial Occupancies
169(6)
5-2.1 Optional Calculations for Restaurants
5-2.2 Services for Hotels and Motels
5-2.3 Optional Calculations for Schools
5-2.4 Feeder and Service Calculations for Farms
5-3. Special Occupancies and Equipment
175(10)
5-3.1 Service Calculation for a Small Hospital
5-3.2 Power Supply and Feeder Design for Mobile Homes and Mobile Home Parks
5-3.3 Power Supply and Feeder Design for Recreational Vehicles and Recreational Vehicle Parks
5-3.4 Shore Power Circuits for Marinas and Boatyards
5-3.5 Miscellaneous Wiring System Design Rules
PART II--GENERAL RULES FOR INSTALLATIONS 185(130)
6 Installation Rules for Specific Circuits or Systems
185(31)
6-1. Installation of Branch Circuits
185(9)
6-1.1 General Installation Rules for Branch Circuits
6-1.2 Branch-Circuit Installation Rules for Dwelling Units
6-1.3 Branch-Circuit Installation Rules for Guest Rooms in Hotels and Motels
6-2. Installation Rules for Feeders
194(1)
6-3. Installation Rules for Services
195(16)
6-3.1 General Installation Rules for Services
6-3.2 Installation Rules for Service Disconnecting Means and Overcurrent Protection
6-3.3 Grounding and Bonding at Services
6-4. Systems Operating at Over 600 Volts
211(1)
6-5. Miscellaneous Circuits and Systems
211(5)
7 Installation of General Circuits and Equipment
216(29)
7-1. Use of Conductors in Circuits
217(5)
7-1.1 Overcurrent Protection of Conductors
7-1.2 Identification of Conductors
7-1.3 Size and Ampacity of Conductors
7-1.4 Properties of Conductors
7-1.5 Miscellaneous Types of Conductors
7-2. Installation and Protection of Conductors
222(4)
7-2.1 General Rules for Conductor Installation
7-2.2 Conductors in Enclosures and Raceways
7-2.3 Underground Installations
7-3. Wiring Methods and Techniques
226(6)
7-3.1 Wiring Methods Using Conductors and Cables
7-3.2 Wiring Methods Using Raceways
7-3.3 Other Wiring Methods and Techniques
7-4. Equipment Grounding and Bonding
232(3)
7-4.1 Equipment Grounding
7-4.2 Equipment Bonding
7-5. Equipment and Devices
235(10)
7-5.1 Overcurrent Devices
7-5.2 Boxes Containing Outlets, Receptacles, Switches, or Devices
7-5.3 Conduit Bodies, Pull Boxes, and Junction Boxes
7-5.4 Cabinets and Cutout Boxes, Switches, and Lighting Fixtures
8 Installation Rules for Distribution Equipment
245(16)
8-1. Working Clearances
245(3)
8-2. Switchboards and Panelboards
248(3)
8-2.1 Switchboards
8-2.2 Panelboards
8-3. Transformers
251(3)
8-4. Installation Rules for Capacitors and Other Distribution Equipment
254(7)
8-4.1 Capacitors
8-4.2 Other Distribution Equipment
9 Installation of Utilization Equipment
261(12)
9-1. Appliances
261(3)
9-2. Fixed Electric Space-Heating Equipment
264(3)
9-2.1 General Rules for Installation of Fixed Heating Equipment
9-2.2 Electric Space Heating Cables
9-2.3 Other Fixed Heating Equipment
9-3. Motors
267(2)
9-3.1 Disconnecting Means
9-3.2 Guarding and Grounding
9-4. Miscellaneous Utilization Equipment
269(4)
10 Special Equipment
273(12)
10-1. Electric Signs
273(3)
10-2. Data-Processing Systems
276(1)
10-3. Swimming Pools
277(4)
10-3.1 General Requirements for Pools
10-3.2 Requirements for Permanently Installed Pools
10-4. Miscellaneous Special Equipment
281(4)
11 Special Occupancies
285(18)
11-1. Hazardous (Classified) Locations
285(9)
11-1.1 Class I Locations
11-1.2 Class II Locations
11-1.3 Class III Locations
11-1.4 Comparison of Classified Locations (Division 1)
11-2. Specific Class I Locations
294(5)
11-2.1 Commercial Garages
11-2.2 Gasoline Dispensing and Service Stations
11-3. Other Special Occupancies
299(4)
12 Special Conditions and Communication Circuits
303(12)
12-1. Emergency and Standby Systems
303(3)
12-1.1 Emergency Systems
12-1.2 Standby Systems
12-2. Remote-Control, Signaling and Power-Limited Circuits
306(1)
12-3.1 Class 1 Circuits
12-3.2 Class 2 and Class 3 Circuits
12-3. Other Special Conditions
307(1)
12-4. Communications Systems
307(1)
12-5. Circuits and Equipment Operating at Over 600 Volts
308(7)
PART III--GENERAL ELECTRICAL THEORY 315(12)
13 Review of Electrical Theory
315(12)
13-1. Direct-Current Theory
315(1)
13-2. Conductors
316(1)
13-3. Alternating-Current Theory
316(3)
13-3.1 Inductors and Capacitors
13-3.2 Impedance
13-3.3 Power and Power Factor
13-3.4 Power Factor Correction
13-3.5 Energy
13-4. Equipment in AC Circuits
319(8)
13-4.1 Loads
13-4.2 Voltage Drop in Conductors
13-4.3 Transformers
13-4.4 Motors
13-4.5 Electrical Diagrams
PART IV--FINAL EXAMINATIONS 327(10)
Final Examination No. 1
327(3)
Final Examination No. 2
330(2)
Final Examination No. 3
332(5)
APPENDICES 337(47)
A. Important Formulas 337(7)
B. Answers 344(40)
Bibliography 384(1)
Index 385

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