Raceway, Cable, or Earth - Allowable Ampacities of Conductors
Free Air - Allowable Ampacities of Conductors
Ampacity Correction and Adjustment Factors
Conductor and Equipment Termination Ratings
Examples
Voltage-Drop Examples
Conductor Prefixes
Ampacity of Cords - Types S, SJ, SJT, SP, ST
Max. Number of Compact Conductors - Electrical Metallic Tubing (EMT)
Max. Number of Compact Conductors - Rigid Metallic Conduit (RMC)
Max. Number of Compact Conductors - Type EB, PVC Conduit
Nominal Dimensions and Areas of Compact Copper & Aluminum Building Wire
Conduit and Tubing Dimensions and Percent Area
Metal Box Fills
Conductor Volume Requirements
Box Fill - Summary of Contributing Items
Box Fill Calculation
Clear Working Space in Front of Electrical Equipment (Minimum Depth)
Burial Depths - Minimum Cover Requirements
Residential Grounding Diagrams
Grounding Electrode Selection
Sizing of Grounding Electrode Conductor (GEC) for AC Systems
Min. Size - Equipment Grounding Conductors (EGC)
Grounding Diagrams
Raceway Installation Guidelines
Rigid Metal Conduit Supports
Rigid Nonmetal Conduit (RNC) Supports
EMT Rules
Offset Bends - Using Hand Bender
90
ο Bends - Using Hand Bender
Back-to-Back Bends - Using Hand Bender
3-Point Saddle Bends - Using Hand Bender
Flexible Metal Conduit (FMC) Rules
Liquidtight Flexible Metal Conduit (LFMC) Rules
Liquidtight Flexible Nonmetal Conduit (LFNC) Rules
Nonmetallic Sheathed Cable: Type NM - ROMEX
NM Cable Rules
Rules for NM Cables and Boxes
Metal-Clad Cable: Type AC - BX
Article 320 of
NECArmored Cable Rules
Underground Feeder Cable: Type UF
Article 340 of
NECService-Entrance Cable: Types SE and USE
Article 338 of
NECBranch-Circuit Rules
Branch-Circuit Requirements
Voltage-Drop Calculation, 2-Wire Circuits
Common Electrical Distribution Systems
120/240 Volt Single Phase Three Wire System
120/240 Volt Three Phase Four Wire System (Delta High Leg)
120/208 Volt Three Phase Four Wire System (Wye Connected)
277/480 Volt Three Phase Four Wire System (Wye Connected)
Water Heater Circuit Calculation
HVAC Circuits
Air Conditioner Wiring
Air Conditioner Configurations
Residential Lamp Types
Lighting Outlets and Switches
Required Lighting Outlets
Switch Control of Lighting Outlets
Switch-Controlled Receptacles
Switch and Receptacle Heights
Track Lighting Rules
Locations
Basement Lighting Guidelines
Hallway Lighting Guidelines
Calculating Cost of Operating an Electrical Appliance
Changing Incandescent Lamp to Energy Saving Lamp
Single-Pole, Three- and Four-Way Switching
Single-Pole, Four-Way Switching
Receptacle Layouts
Bathroom Wiring
GFCI Protection of Receptacles
AFCI and Tamper-Resistant Receptacles
Pool Area Receptacles
Pool Lighting
Pool Area Clearances - Overhead Conductors
Recommended Heights for Wall-Mounted Outlets
Service Planning Guidelines
Residential Service Conductors
Single-Family Dwelling - Services
Multi-Family Services
Types of Appliance Branch Circuits
Applying the Standard Load Calculations
Applying the Optional Load Calculations
Number of Branch Circuits Calculation
Appliance Load Calculation
Demand Factors for Ranges and Other Cooking Appliances Over 1¾ KW Rating
Neutral Reduction Rules
Residential Neutrals
Field Terms versus
NEC Terms
Plan Symbols
Electrical Symbols
Wiring Diagrams for NEMA Configurations
NEMA Enclosure Types - Nonhazardous Locations
NEMA Enclosure Types - Hazardous Locations
Single-Phase Motors
Single-Phase Using Standard Three-Phase Starter
Full-Load Current for Single-Phase Alternating Current Motors (Amperes)
Running Overload Units
Motor Branch-Circuit Protective Devices Maximum Rating or Setting
Motor Circuit Design
For One Motor
More Than One Motor
Single-Phase Transformer Connections
Full-Load Currents
Transformer Calculations
Sizing Transformers
Single-Phase Transformers
Single-Phase Transformer Primary and Secondary Amperes
Buck and Boost Transformer Connections
Typical Appliance Power Requirements
Generator Sizing
Generator Sizing Example
Telephone System Protector Installation Rules
Demarcation Point
Telephone Cable Color Code
66 Block Wiring
Telephone Wiring
Data Cabling Color Code
TIA - 606-A
Category 5 Color Code
Typical RJ45 Cat. 5 Jack
Smoke Detector Placement Guidelines
Typical Door Chime
Thermostat Circuit
HVAC Thermostat
Thread Dimensions and Tap Drill Sizes
Screw-Tightening Torque in Foot-Pounds
Screw Torques
Drilling Speed (RTM)
Sheet Metal Screws
Wood Screws
Strength of Nylon Rope
Allowable Loads - Plastic Anchors: Tension Load in Pounds
Allowable Loads - Concrete Screws: Tension Load in Pounds
Allowable Loads - Expansion Shields: Tension Load in Pounds
Ohm’s Law
Series Circuits
Parallel Circuits
Combination Circuits
Electrical Formulas for Calculating Amperes, Horsepower, Kilowatts, and kVA
U.S. Weights and Measures
Linear Measures
Mile Measurements
Other Linear Measurements
Square Measures
Cubic or Solid Measures
Liquid Measurements
Dry Measures
Weight Measurements (Mass)
Metric System
Prefixes
Linear Measures
Square Measures
Cubic Measures
Measures of Weight
Measures of Capacity
Metric Designator and Trade Sizes
Explanation of Scientific Notation
Useful Conversions/Equivalents
Decimal Equivalents
Two-Way Conversion Table
Centigrade and Fahrenheit Thermometer Scales
Fractions
Definitions
To Add or Subtract
To Multiply
To Divide
Equations
Electrical Safety Definitions
Electrical Safety Checklist
Electrical Safety: Lockout–Tagout Procedures
Application of Lockout/Tagout Devices
Removal of Lockout/Tagout Devices
Electrical Safety: How to Read a Warning Label
First Aid
Scene Survey
How to Call for Help
Bleeding
Ingested Poisons
Shock
Burns
Frostbite
Hypothermia
Heat Cramps
Heat Exhaustion
Heatstroke
Airway Obstruction
Adult Cardiopulmonary Resuscitation (CPR)
Special Rules For Two-Family Dwellings
Common Area Branch Circuits Prohibited
Meters and Service Equipment
Grounding
Firestopping
Lighting & Receptacles
Pools & Spas
Space Heating Equipment
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