# DEWALT Electrical Professional Reference - 2017 NEC

By Paul Rosenberg

The ultimate electrical reference that can answer any question you have, whether you have been in the field for years or are just starting!

Price: \$24.95
Product Code/ISBN: 9781337271394
Year: 2017
Binding:
Publisher: DEWALT

The ultimate electrical reference that can answer any question you have, whether you have been in the field for years or are just starting!

Title Page

Contents

Preface

1. Circuits, Formulas, and Voltage Drop Calculations
1. Ohm’s Law/Power Formulas
2. Ohm’s Law Diagram and Formulas
3. Power Diagram and Formulas
4. Ohm’s Law and Impedance
5. AC/DC Power Formulas
6. Three-Phase AC Circuits and the Utilization of Power
7. Wye Connection
8. Delta Connection
9. Four-Wife System
10. Multi-Wire System Voltages
11. Formulas for Sine Waves
12. Calculating Peak, Average, and Root-Mean-Square
13. Kirchhoff’s Law
14. Power Factor
15. Types of Power
16. True Power and Apparent Power
17. Power Factor Formula
18. Power Factor Improvement
19. Capacitor Correction for Three-Phase Motors
20. Delta and Wye Resistor Circuits
21. Summary of Series, Parallel, and Combination Circuits
22. Circuit Characteristics
23. Capacitance
24. Capacitors Connected in Series/Parallel
25. Capacitance
26. Capacitors Connected in Series/Parallel
27. Capacitive Reactance
28. Inductance
29. Inductors Connected in Series/Parallel
30. Inductive Reactance
31. Voltage Drop Using Ohm’s Law
33. Calculating Branch
34. Circuit Voltage Drop in Percent
35. Voltage Drop Formulas
36. Conductor Length/Voltage Drop
37. Conductor Size/Voltage Drop
38. Wire Length vs. Wire Size (Max Voltage Drop)
39. Voltage Drop Ampere-Feet
40. Voltage Drop Table
2. Conduit, Cable, and Underground Installations
1. Bending EMT Stub-Ups
2. Back-to-Back Bending
1. Bend Offset
3. Chicago-Type Conduit Bender-90 Bending
4. Chicago-Type Conduit Bender-Offset Bending
5. Multi-Shot 90 Conduit Bending
6. Box Offests
7. Offset Travel
9. EMT Take-Up for Hand Benders
11. Support Spacing for Rigid Metal Conduit
12. Support Spacing for EMT and Metal Conduit
13. Support Spacing for Rigid PVC
14. Support Spacing for Flexible Conduits
15. Expansion Characteristics of PVC Rigid Nonmetallic Conduit
3. Ampacity, Box Fill, Branch Circuits, Conductors, Enclosures, and Raceways
1. Ampacity of Lamp and Extension Cords – Types S, SJ, SJT, SP, SPT, and ST
2. Vertical Conductor Supports
3. Conductor Color Code
4. Power Wiring Color Code
5. Power Transformer Color Code
6. Grouped Conductors
7. Paralleled Conductors
8. Electrical Cable Class Ratings
9. Cable Insulation Moisture Ratings
10. Conductor Prefix Codes
11. Conductor Applications
12. Enclosure Types
13. Classifications of hazardous Locations
14. Division 1 Examples
15. Sizes of PanelBoards
16. Sizes of Gutters and Wireways
17. Sizes of Disconnects
18. Sizes of Pull Boxes and Junction Boxes
19. CBs and Fuses
20. Switchboards or Switchgear
21. Area Dimensions of Insulated Conductors
22. Junction Box Calculations
23. Conductor Volume Allowance
24. Box Fill
25. Rigid Metal Conduit – Maximum Number of Conductors
26. Liquidright Flexible Metal Conduit – Maximum Number of Conductors
27. Nonmetallic Tubing – Maximum Number of Conductors
28. Electrical Metallic Tubing – Maximum Number of Conductors
29. Flexible Metal Conduit – Maximum Number of Conductors
30. Rigid PVC Schedule 40 Conduit – Maximum Number of Conductors
31. Rigid PVC Schedule 80 Conduit – Maximum Number of Conductors
32. Copper Bus-Bar Data
33. Comparative Weights of Copper and Aluminum Conductors lb per 1,000 ft.
34. Copper Wire Specifications
35. Copper Wire Resistance
36. Conductor dimensions and Resistance
37. AC Resistance, Reactance, and Impedance for 1,000 Volt Cables Measured in Ohm’s to Natural
38.  Ampacities of Copper Conductors (1)
39. Ampacities of Copper Conductors (3)
40. Ampacities of Aluminum or Copper-Clad Aluminum Conductors (1)
41. Ampacities of Aluminum and Copper-Clad Aluminum Conductors (3)
42. Ampacity Ratings for Flexible Cords and Power Cables at 308C Ambient Temperature
43. Ampacity Adjustments for 4 or More Conductors in a Cable or Raceway
44. Ampacity Ratings for Single-Phase Service or Feeder Conductors in Normal Dwelling Units
45. Branch Circuit Requirements
47. Branch Circuit Fixture Wire Tape Sizes
48. Maximum Cord-and-Plug Connected Load to Receptacle
49. Receptacle Ratings for Various Size Circuits
50. Demand Factors for Nondwelling Receptacle Loads
51. Demand Factors for Kitchen Equipment in Nondwelling Applications
4. Receptacles, Switches, Interior Wiring, and Lighting
1. Receptacles in Damp Locations
2. Receptacles in Wet Locations
3. Tamper-Resistant Receptacles in Dwelling Units
4. ARC-Fault Circuit-Interrupter Protection
5. AFCI Receptacle Locations
6. GFCI Receptacle Locations
7. GFCI Wiring Diagrams
8. Wiring Diagrams for Nema Plug and Receptacle Configurations
9. Wiring Diagrams for AC Switches
10. Wiring Diagrams for Pilot Light and Lighted Toggle Switches
11. Family Room with Split-Wired Receptacles and Switched Circuit
12. Residential Smoke Alarm Guidelines
13. Residential Area Requirements for Smoke Alarm
14. Smoke Alarm Wiring Requirements
15. Family Room and Bedroom Receptacle Outlet Spacing
16. Family Room Wiring Details
17. Wetbar and Track Lighting Wiring Details
18. Bedroom Wiring Details
19. Clothes Closet Wiring Details
20. Hallway and Stairwell Wiring Details
21. Laundry Room Wiring Details
22. Kitchen Receptacles
23. Countertop Receptacle outlet Spacing
24. Kitchen Wiring Details
25. Bathroom Receptacles and Spacing
26. Bathroom Wiring Details
27. Crawl Space and Inside Equipment Wiring Details
28. Unfinished Basement Wiring Details
29. Garage and Shop Receptacles
30. Garage and Shop Wiring Details
31. Storage Area Wiring Details
32. Outdoor Receptacles
33. Outdoor Wiring Details
34. Recommended Light Levels
36. Lamp Ratings
37. Lumens, Life, and Efficacy for Various Lamps
38. Light Source Characteristics
39. Common Fluorescent Types
40. Common Shape Identifiers
5. Grounding and Bonding
1. Resistivities of Different Metals
2. Resistivities of Different Soils
3. Basic Grounded Conductor Rules
4. Grounded Conductor-Neutral
5. Grounded Conductor-Not Neutral
6. Grounding Different Types of Circuits
7. Grounding an Existing Circuit
8. Grounding a Screw-Shellbase
9. Bonding a Typical Service Entrance
10. Bonding Service Equipment Methods
11. Bonding Jumpers for Grounding Equipment Conductor Raceways
12. Equipment Bonding Jumpers
13. Equipment Grounding Conductors
14. Minimum Size Conductors for Grounding Raceway and Equipment
15. Basic Grounding Connections
16. Grounding Electrode Conductors for AC Systems
17. Types of Grounding methods per the NEC
18. Grounding a Basic Nonmetallic Underground Service Raceway
19. Grounding a Basic Overhead Electrical Service
20. General Requirements for Grounding and Bonding Services
21. Grounding a Typical Residential Wiring System
22. Grounded Primary Distribution System
6. Motors
1. Designing Motor Branch Circuits
2. Motor Branch Circuit Requirements
3. Nema Ratings of AC Motor Starters in Amps per HP, Phase, and Voltage
4. Full-Load Currents in Amps for Various Three-Phase AC Motors
5. Three-Phase AC Motor Requirements
6. Full-Load Currents in Amps for Single-Phase AC Motors
7. Small Motor Guide
8. Full-Load Currents in Amps for Direct Current Motors
9. Direct Current Motor Requirements
10. DC Motor Performance Characteristics
11. Maximum Acceleration Time
12. Horsepower Ratings for 240 Volt AC Safety Switches
13. Maximum Rating of Setting of Motor Branch Circuit Overcurrent Protective Devises in Percent
15. Horsepower Formulas
16. Efficiency Formulas
17. Voltage Unbalance
18. Temperature Conversions
19. Locked Rotor Current Formulas
20. Gear Reducer Formulas
21. Motor Torque Formulas
22. Motor Torque per Motor Speed
23. Tips on Selecting Motors
24. Direct Current Motor Data
25. Applications for Direct Current and Single-Phase Motors
26. Squirrel-Cage Motor Data
27. Applications for Squirrel-Cage Motors
28. Wound-Rotor Motor Data
29. Synchronous Motor Data
30. Applications for Wound-Rotor and Synchronous Motors
31. Types of Motor Enclosures
32. Types of Insulation
33. Motor Frame Letters
34. Shaft Coupling Selections
35. Motor V-Belts
36. V-Belt per Motor Size
37. Nema Motor Frame Dimensions
38. Frontal View of a Typical Motor
39. Reference Page 6-34 for Dimensions
40. Side View of a Typical Motor
41. Rotation and Terminal Markings for Direct Current Motors
42. Rotation and Terminal Markings for Single-Phase Motors
43. Split-Phase, Squirrel-Cage Motors
44. Split-Phase Motor Rotation
45. Delta-Wound Motor Connections 240/480 V
46. Wye-Wound Motor Connections 240/480 V
47. Dual-Voltage, 3f, Wye-Connected Motors
48. Dual-Voltage, 3f Delta-Connected Motors
49. Star-Connected, Polyphase Motor
50. Reversing Three-Phase Motors
51. Motor Control circuit Schematics
52. Wiring Diagram of a Single-Phase Motor Connected to a Three-Phase Motor Starter
53. Wiring Diagram of Hand Off Motor Control
54. Wiring Diagram of Jogging with Control Relay
55. Contactor and Motor Starter Troubleshooting Guide
56. Direct Current Motor Troubleshooting Guide
57. Three-Phase Motor Troubleshooting Guide
58. Split-Phase Motor Troubleshooting Guide
7. Transformers
1. Sizing Transformer Circuits
2. Three-Phase Connections
3. Transformer Turns Ratio
4. Feeder Tap and Transformer Tap Installation Guidelines
5. Transformer Feed Tap Not Over 25 Feet Long
6. Sizing Single-Phase Transformers
7. Sizing Three-Phase Transformers
8. Transformer Deratings Resulting from Higher Ambient Temperatures
9. Calculating Derated kVA Capacity from Higher Ambient Temperatures
10. Current-Voltage Relationship Between High Side and Low Side of a Transformer
11. Testing a Transformer for Polarity
12. Diagram of a Current Transformer
13. Single-Phase Transformer Circuits
14. Single-Phase Transformer Connections
15. Various Transformer Connections
16. Three-Phase Transformer Connections
17. A Split-Coil Transformer
19. Secondary Ties
20. Loads Connected Between Transformer Supply Points
21. Autotransformer
22. Typical Boost Transformer Connections
23. Typical Buck Transformer Connections
24. Transformer Sound Levels
25. Transforming Winding Ratios
26. Satisfactory Voltage Levels
8. Communications and Electronics
1. Telephone Connections
2. Standard Telecom Color Coding
3. Separation Telecom Color Coding
4. Separation and Physical Protection for Premises Wiring
5. Minimum Separation Distance from PowerSource at 480 V or Less
6. Conductors Entering Buildings
7. Circuit Protection Requirements
8. Interior Communications Conductors
9. Telephone Connections
10. EIA Color Code
11. Twisted-Pair Plugs and Jacks
12. Phone Jakcs
13. Cross Connections
14. Category Cabling
15. Installation Requirements
16. Types of Data Networks
17. Standard Configurations for Several Common Networks
18. Ethernet 10BaseT, Straight-Thru Patch Cord
19. Ethernet10BaseT, Crossover Patch Cord
20. EIA-606 Colors and Functions of Cabling
21. Thermostat Wiring guide
22. Wiring Guide for Thermostat, Furnace, and Air Conditioning
23. Basic Thermostat Circuit
24. Twin-Type Thermostat Circuit
25. Intruder Alarm Circuit with Annunciator and Relay
26. Electronic Wiring Color Codes
27. Color Codes for Resistors
28. Standard Values for Resistors
29. Capacitors
30. Color Codes for Capacitors
31. Color Codes for Ceramic Capacitors
33. Magnetic Permeability of Some Common Materials
34. Transistor Circuit Abbreviations
36. Small Tube Fuses
9. Electrical and Job Safety
1. Electrical Safety Guidelines
2. Effect of Electric Current on the Human Body
3. Electrical Safety Checklist
4. Lockout/Tagout Procedures
5. Work Area Control
6. OSHA Safety Color Codes
7. Top OSHA Electrical Violations (2001)
8. Wiring Design and Protection for Construction Sties
9. Required Working Clearance-Minimum Depth in Feet
10. Minimum Elevation of Unguarded Live Parts Above Working Space in Feet
11. Minimum Clearance – Live Parts
13. Electrical Glove Inspection
14. Tree Trimming and Removal Safety
15. Portable Generator Safety
16. First Aid Guide
17. Types of Fire Extinguishers
10. Materials and Tools
1. Strength Gain vs. Pull Angle
2. Length of Wire Cable Per Reel
3. Sheet Metal Screw Characteristics
4. Wood Screw Characteristics
5. Hex Head Bolt and Torque Characteristics
6. Whitworth Hex Head Bolt and Torque Characteristics
7. Metric Hex Head Bolt and Torque Characteristics
8. Allen Head and Machine Screw Bolt and Torque Characteristics
9. Tightening Torque in Pound-Feet-Screw Fit
10. Screw Torques
11. Standard Taps and Dies
12. Taps and Dies – Metric Conversions
13. Recommend Drilling Speeds
14. Torque lubrication Effects in Foot-Pounds
15. Metalworking Lubricants
16. Types of Soldering Flux
17. Hard Solder Alloys
18. Soft Solder Alloys
19. Properties of Welding Gases
20. Welding Rods – 36” Long
21. Pulley and Gear Formulas
22. Standard V Belt Lengths in Inches
23. Extension Cord Sizes for Portable Tools
11. Conversion Factors, Mathematics, and Units of Measurement
1. Commonly Used Conversion Factors
3. Decimal Equivalents of Fractions
4. Millimeter Decimal Inch Equivalents Metric Measurements
5. U.S. Measurements
6. Mathematics
7. Commonly Used Geometrical Relationships
8. Common Engineering Units and Their Relationship
9. Conversion Table for Temperature – F/C
10. Electrical Prefixes
11. Common Prefixes
12. Common Electrical Quantities
13. Conversion Table
12. Symbols
1. Switch Outlets
2. Lighting Outlets
3. Receptacle Outlets
4. General
5. Panelboards, Switchboard, and Related Equipment
6. Circuiting and Wiring
7. Motor Control
8. Switch
9. PushButton, Momentary, or Spring Return
10. PushButton, Maintained, or No-Spring Return
13. Glossary