Electrical Wiring Residential

Cover
Copyright page
Contents
Foreword
Preface
Acknowledgments
Chapter 1 General Information for Electrical Installations
Objectives
Safety in the Workplace
Personal Protective Equipment
Arc Flash
Safety Cannot Be Compromised
Training
Licensing and Permits
National Electrical Code® (NEC)
Language Conventions
Building Codes
Metrics (SI) and the NEC
Listed Equipment and Nationally Recognized Testing Laboratories (NRTL)
Review
Safety-Related Problems
Chapter 2 Specifications, Electrical Symbols, and Outlets
Objectives
Plans and Specifications
Specifications
Electrical Symbols
Notations
Luminaires and Outlets
Outlet, Device, and Junction Boxes
Nonmetallic Outlet and Device Boxes
Ganged Switch (Device) Boxes
Box Mounting
Boxes for Conduit Wiring
Yoke
Special-Purpose Outlets
Number of Conductors in Box
Selecting the Correct Size Box
Height of Receptacle Outlets
Positioning of Receptacles
Review
Part 1—Electrical Features
Part 2—Structural Features
Chapter 3 Determining the Required Number of Branch Circuits, Lighting Outlets, and Receptacle Outlets
Objectives
Introduction
Basics of Wire Sizing and Loading
Voltage
Calculating Loads
Calculating Floor Area
Determining the Minimum Number of Lighting Branch Circuits
Track Lighting Loads
Summary of Where Receptacle and Lighting Outlets Must Be Installed in Residences
Review
Chapter 4 Conductor Sizes and Types, Wiring Methods, Wire Connections, Voltage Drop, and Neutral Conductor Sizing for Services
Objectives
Conductors
Permissible Loads on Branch Circuits (210.23)
Aluminum Conductors
Conductor Insulation
Wet, Damp, Dry, and Sunlight Locations
Voltage Drop
Approximate Conductor Size Relationship
Nonmetallic-Sheathed Cable (Article 334)
Armored Cable (Type AC) and Metal-Clad Cable (Type MC)
Installing Cables Through Wood and Metal Framing Members (300.4)
Cables in Shallow Grooves and Chases
Installation of Cables Through Ducts
Connectors for Installing Nonmetallic-Sheathed and
Armored Cable
Intermediate Metal Conduit (Article 342), Rigid Metal Conduit (Article 344), Rigid Pvc Conduit (Article 352), and Electrical Metallic Tubing (Article 358)
Flexible Connections
Electrical Nonmetallic Tubing (Ent) (Article 362)
Service-Entrance Cable (Article 338)
Review
Chapter 5 Conductor Identification, Switch Control of Lighting Circuits, Bonding/Grounding of Wiring Devices, and Induction Heating
Objectives
Conductor Identification [NEC® Articles 200 and 210)
Connecting Wiring Devices
Push-In Terminations
Toggle Switches (Article 404)
Combination Wiring Devices
Common Code Violation Taps
Timers
Review
Chapter 6 Ground-Fault Circuit Interrupters, Arc-Fault Circuit Interrupters, Surge Protective Devices, Immersion Detection Circuit Interrupters, and Appliance Leakage Current Interrupters
Objectives
Electrical Shock Hazards
Code Requirements for Ground-Fault Circuit Interrupters (210.8)
Ground-Fault Circuit Interrupter Requirements
Feed-Through Ground-Fault Circuit Interrupter
Testing and Recording of Test Data for GFCI Receptacles
Arc-Fault Circuit Interrupters (AFCIs)
Other Special-Purpose Receptacles
Replacing Existing Receptacles
Personnel Ground-Fault Protection for All Temporary Wiring
Immersion Detection Circuit Interrupters (IDCIs) and Appliance Leakage Current Interrupters (ALCIs)
Surge Protective Devices (SPDs)
Review
Chapter 7 Luminaires, Ballasts, and Lamps
Objectives
What is a Luminaire
Types of Luminaires
Fluorescent Ballasts and Lamps, Incandescent Lamps, and LEDs
Lamp Efficacy
Lamp Color Temperature
Review
Chapter 8 Lighting Branch Circuit for the Front Bedroom
Objectives
Introduction
Residential Lighting
Laying Out General-Purpose Lighting and Receptacle Circuits
Estimating Loads for Outlets
Symbols
Drawing a Cable Layout and Wiring Diagram
Drawing the Wiring Diagram of a Lighting Circuit
Lighting Branch Circuit A16 for the Front Bedroom
Determining the Size of Outlet Boxes, Device Boxes, Junction Boxes, and Conduit Bodies
Grounding of Wall Boxes
Positioning of Split-Wired Receptacles
Positioning of Receptacles Near Electric Baseboard Heating
Luminaires in Clothes Closets
Review
Chapter 9 Lighting Branch Circuit for the Master Bedroom
Objectives
Introduction
Lighting Branch Circuit A19 for the Master Bedroom
Sliding Glass Doors and Fixed Glass Panels
Selection of Boxes
Ceiling-Suspended (Paddle) Fans
Review
Chapter 10 Lighting Branch Circuit—Bathrooms, Hallway
Objectives
Introduction
Lighting Branch Circuit A14 for the Hallway and Bathrooms
Hanging Luminaires in Bathrooms
Hallway Lighting
Receptacle Outlets in Hallways
Equipment Grounding
Review
Chapter 11 Lighting Branch Circuit—Front Entry, Porch, Post Light, Underground Wiring
Objectives
Introduction
Circuit A15
Doorjamb Switch
Review
Chapter 12 Lighting Branch Circuit and Small-Appliance Circuits for the Kitchen
Objectives
Kitchen
Lighting Circuit B7
Kitchen Lighting
Fan Outlet
Clock Outlets
Small-Appliance Branch Circuits for Receptacles in the Kitchen
Split-Wired Receptacles and Multiwire Circuits
Receptacles and Outlets
Review
Chapter 13 Lighting Branch Circuit for the Living Room
Objectives
Lighting Circuit B17 Overview
Track Lighting (Article 410, Part XV)
Dimmer Controls for Homes
Review
Chapter 14 Lighting Branch Circuit for the Study/Bedroom
Objectives
Circuit A21 Overview
Valance Lighting
Surge Suppressors
Review
Chapter 15 Dryer Outlet, Lighting, and Receptacle Circuits for the Laundry, Powder Room, Rear Entry Hall, and Attic
Objectives
Receptacle Circuit B21
Clothes Dryer Circuit ▲D
Receptacle Outlets—Laundry
Combination Washer/Dryers
Lighting Circuit B10
Attic Lighting and Pilot Light Switches
Review
Chapter 16 Branch Circuits for the Garage and Outdoors
Objectives
Lighting Branch Circuit B14
Receptacle Branch Circuit B23
Electric Vehicle Charging Systems
Lighting a Typical Residential Garage
Landscape Lighting
Outdoor Wiring
Underground Wiring
Overhead Garage Door Operator ▲E
Review
Chapter 17 Recreation Room
Objectives
Recreation Room Lighting (B9, 11, 12)
Receptacles and Wet Bar (B9–11)
Review
Chapter 18 Lighting Branch Circuit, Receptacle Circuits for Workshop
Objectives
Introduction
Workbench Lighting
Receptacle Outlets
Cable Installation in Basements
Conduit Installation in Basements
Adjustment and Correction (Derating) Factors for More than Three Current-Carrying Conductors in Conduit or Cable
Correction Factors Due to High Temperatures
Example of Derating, Correcting, Adjusting, Overcurrent Protection, and Conductor Sizing
Overcurrent Protection for Branch Circuit Conductors
Basic Code Considerations for Conductor Sizing and Overcurrent Protection
Multioutlet Assembly
Empty Conduits
Review
Chapter 19 Special-Purpose Outlets—Water Pump, Water Heater
Objectives
Water Pump Circuit ▲B
Jet Pumps
Submersible Pumps
Motor Circuit Design
Grounding
Water Heater Circuit ▲C
Electric Water Heater Branch Circuits
Effect of Voltage Variation on Resistive Heating Elements
Effect of Voltage Variation on Motors
Heat Pump Water Heaters
Review
Water Pump and Branch Circuit ▲B
Water Heater Branch Circuit ▲C
Chapter 20 Special-Purpose Outlets for Ranges, Counter-Mounted Cooking Unit ▲G, and Wall-Mounted Oven ▲F
Objectives
Basic Circuit Requirements for Electric Ranges,
Counter-Mounted Cooking Units, and Wall-Mounted Ovens
Grounding Frames of Electric Ranges, Wall-Mounted Ovens,
and Counter-Mounted Cooking Units
Wall-Mounted Oven Circuit ▲F
Counter-Mounted Cooking Unit Circuit ▲G
Free-Standing Range
Calculations when More than One Wall-Mounted Oven and Counter-Mounted Cooking Unit Are Supplied by One Branch Circuit
Using a Load Center
Calculations when More than One Electric Range, Wall-Mounted Oven, or Counter-Mounted Cooking Unit Is Supplied by a Feeder or Service
Microwave Ovens
Lightwave Energy Ovens
Surface Heating Elements
Temperature Controls
Review
Counter-Mounted Cooking Unit Circuit ▲G
Wall-Mounted Oven Circuit ▲F and Free-Standing Range
Chapter 21 Special-Purpose Outlets—Food Waste Disposer ▲H, Dishwasher ▲I
Objectives
Introduction
Food Waste Disposer ▲H
Dishwasher ▲I
Code Rules Common to the Food Waste Disposer and the Dishwasher
Portable Dishwashers
Water Temperature
Review
Food Waste Disposer Circuit ▲H
Dishwasher Branch Circuit ▲I
Chapter 22 Special-Purpose Outlets for the Bathroom Ceiling Heat/Vent/Lights ▲K ▲J, the Attic Fan ▲L, and the Hydromassage Tub ▲A
Objectives
Bathroom Ceiling Heater Circuits ▲K ▲J
Attic Exhaust Fan Circuit ▲L
Humidity
Appliance Disconnecting Means
Hydromassage Bathtub Circuit ▲A
Review
Bathroom Ceiling Heater Circuits ▲K ▲J
Attic Exhaust Fan Circuit ▲L
Hydromassage Bathtub Circuit ▲A
Chapter 23 Special-Purpose Outlets—Electric Heating ▲M, Air Conditioning ▲N
Objectives
Introduction
Resistance Heating Cables
Electric Furnaces
Control of Electric Baseboard Heating Units
Marking the Conductors of Cables
Circuit Requirements for Electric Baseboard Heating Units
Location of Electric Baseboard Heaters in Relation to
Receptacle Outlets
Wall-Mounted Heaters
Heat Pumps
Grounding
Circuit Requirements for Room Air Conditioners
Central Heating and Air Conditioning
Understanding the Data Found on an Hvac Nameplate
Energy Ratings
Noncoincident Loads
Receptacle Needed for Servicing Hvac Equipment
Gas Explosion Hazard
Review
Electric Heat
Air Conditioning
Chapter 24 Gas and Oil Central Heating Systems
Objectives
Introduction
Forced-Warm Air Furnaces
Hot Water Systems
Principle of Operation
Major Components
Class 2 Circuits
Review
Chapter 25 Television, Telephone, and Low-Voltage Signal Systems
Objectives
Installing the Wiring for Home Television
Satellite Antennas
Code Rules for the Installation of Antennas and Lead-In Wires (Article 810)
Telephone Wiring (Article 800)
Signal System (Chimes)
Review
Television Circuit
Telephone System
Signal System
Chapter 26 Smoke, Heat, Carbon Monoxide Alarms, and Security Systems
Objectives
National Fire Alarm Code (NFPA 72)
Definitions
Smoke, Heat, and Carbon Monoxide Alarms
Detector Types
Wireless Systems (Low-Power Radio)
Types of Smoke Alarms
Types of Heat Alarms
Installation Requirements
Maintenance and Testing
Carbon Monoxide Alarms
Fire Alarm Systems
Security Systems
Review
Chapter 27 Service-Entrance Equipment
Objectives
Introduction
Important Definitions
Overhead Service
Mast-Type Service
Underground Service
Main Service Disconnect Location
Service-Entrance Conductor Sizing
Running Cables into Top of Service Panel
Service-Entrance Overcurrent Protection
Service-Entrance Raceway Sizing
Meter/Meter Base Location
Cost of Using Electrical Energy
Grounding/Bonding (Article 250)
Grounding
Bonding
Grounding Electrical Equipment at a Second Building
Review
Chapter 28 Overcurrent Protection–Fuses and Circuit Breakers
Objectives
The Basics
Key NEC Requirements for Overcurrent Protection
Five Circuit Conditions
Fuses
Circuit Breakers
Interrupting Ratings for Fuses and Circuit Breakers
Short-Circuit Currents
How to Calculate Short-Circuit Current
Panelboards . . . What Are They
Review
Chapter 29 Service-Entrance Calculations
Objectives
Introduction
Sizing of Service-Entrance Conductors and Service
Disconnecting Means
Electric Vehicle Charging
Types of Watt-Hour Meters
Reading Watt-Hour Meters
Review
Student Calculations
Chapter 30 Swimming Pools, Spas, Hot Tubs, and Hydromassage Baths
Objectives
Introduction
Electrical Hazards
Key NEC Requirements—Wiring for Swimming Pools
Getting Trapped Under Water
Underwriters Laboratories Standards
Review
Chapter 31 Wiring for the Future: Home Automation Systems
Objectives
Organizations
Let’s Get Started
The X10 System
Insteon
Structured Residential Wiring Systems
Standards
Cable Types and Installation Recommendations
Terminology
Wireless
Zigbee
Z-Wave
Summary
Review
Chapter 32 Standby Power Systems
Objectives
Introduction
Why Standby (Temporary) Power
What Types of Standby Power Systems are Available
Wiring Diagrams for a Typical Standby Generator
Transfer Switches or Equipment
Disconnecting Means
Grounding
Conductor Size from Standby Generator
Generator Sizing Recommendations
The National Electrical Code Requirements
Review
Chapter 33 Residential Utility-Interactive Photovoltaic Systems
Objectives
Introduction
The Basic Utility-Interactive PV System
National Electrical Code Requirements
Review
Appendix A: Specifications for Electrical Work—
Single-Family Dwelling
Appendix B: Schedule of Special-Purpose Outlets
Appendix C: Useful Formulas
Appendix D: Metric System of Measurement
Appendix E: Architectural, Plumbing, Piping, Valves, and Sheet Metal/Ductwork Symbols
Appendix F: Single-Family Dwelling Service-Entrance Calculations (Standard)
Appendix G: AFCI/GFCI Check-Off List
Appendix H: Glossary
Code Index
Subject Index