Basic
Electric DC Calculation
DVD # 1
- Introduction
- What is Electricity?
- Ohm's Law
- Power Formula
- Ohm's Law & Power Formula Combined
- Series Circuits
- Parallel Circuits
- Open Neutrals on Single Phase Circuits
- 3-Phase Power & Neutrals
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LE-WM-DVD4555-11
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Basic
Electric AC Calculation
DVD # 2
- Introduction, AC & DC
- Single & Three-Phase Power
- Three-Phase Calculations
- Power Formula
- Voltage Drop & Calculations
- Power Factor & Calculations
- Motor Efficiency & Calculations
- Transformers
- Open Neutrals
- Harmonics
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LE-WM-DVD4556-11
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Residential Wiring Code
DVD # 3
- Introduction
- Receptacles
- "Small Appliance" Circuits
- Bathrooms
- Outdoor Receptacles
- GFCI Requirements
- AFCI Requirements
- Heat Tapes
- Light Outlets
- Article 406, for Receptacles
- Fan Boxes
- Appliances
- Physical Protection of N.M Cables
- Clear Working Space
- Electrical Services and Disconnects
- Smoke Alarms
- Garage Separation
- Existing Homes
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LE-WM-DVD4557-11
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Residential Service Calculations
DVD # 4
- Introduction, Article 220
- Terms
- Basic Rules
- Bathrooms
- Load Calculations for Single Family Dwellings
- Optional Calculation Method for Single Family Dwellings
- Household Electric Ranges
- Calculating Service Size for Apartment Buildings
- Optional Calculations for Multi Family Dwellings
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LE-WM-DVD4558-11
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Commercial & Industrial Service Calculations
DVD # 5
- Introduction, Article 220
- Calculations - Buildings and Office Suites
- Rules in Article 220, Lighting / Non-Lighting loads
- Demand Factor Calculations
- Industrial Building Calculations
- Electric Welder Calculations
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LE-WM-DVD4559-11
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Ampacities & Derating
DVD # 6
- Introduction, Table 310.16
- Grounding Conductors - Neutrals
- Harmonics
- Wire Sizing & Color Coding
- Paralleling Conductors
- Ampacity Tables
- Flexible Cord Ampacities
- 60, 75 & 90c Insulation Rings
- Summary
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LE-WM-DVD4560-11
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Overcurrent Protection, Continuous Loads, Transformers and Tap Rules
DVD # 7
- Overcurrent Protection
- Protection of Transformer Secondary Conductors
- Standard Fuse & Circuit Breaker Sizes
- Feeder Tap Rules
- Overcurrent Protection for Transformers Equal to or Less Than
600 Volts
- Transformer Overcurrent Protection for Transformers Over 600
Volts and Transformer Secondaries
- Transformer Tap Rules
- Multiple Transformer Taps
- Continuous Load Calculations: Conductor Size vs. Fuse or
Circuit Breaker Size
- Derating & Overcurrent Protection
- Ground-Fault Protection
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LE-WM-DVD4561-11
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Understanding Grounding Part 1: Systems and Services
DVD # 8
- Introduction to Grounding, Article 250
- Definitions, Article 100
- Tables 250.66 and 250.122
- Grounding Electrode Systems
- Resistance of Ground Rods
- Bonding
- Sizing Grounding Electrode Conductors
- Grounding Voltage Systems
- Bonding Service Raceways
- Bonding to Other Systems
- Overview
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LE-WM-DVD4562-11
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Understanding Grounding
Part 2: Circuits and Equipment
DVD # 9
- Introduction, Kaufman's Research
- Grounding for Computers & CNC Controlled Machinery
- Sizing Grounding Conductors
- Sizing Grounding Conductors for Feeder Taps
- Types of Equipment Grounding Conductors
- Bonding Receptacles to Outlet Boxes
- Grounding of Switches
- Splicing & Bonding Ground Wires
- Color Coding
- Grounding & Bonding Jumpers
- Hazardous Locations
- Separately Derived Systems
- Feeders to Second Buildings
- Ranges & Dryers
- Replacing Underground Receptacles
- Surge Arresters & Surge Suppressors
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LE-WM-DVD4563-11
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Raceways,
Boxes & Cabinets: Fill and Dimensions
DVD # 10
- Definitions
- Conduit Fill & Tables
- Percentage Fill & Excessive Heat, Wire & Conduit Dimension
tables
- Conduit Fill for Mixed Conductor Sizes
- Outlet Box Wire Fill
- Pull Box Sizing
- Cabinet & Panel Wiring Spaces
- Splicing & Passing through Panelboard & Disconnects
- Calculating the Expansion & Contraction of PVC Conduits
- Fittings that allow for Movement
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LE-WM-DVD4564-11
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Motor
Circuits: Understanding Article 430
DVD # 11
- Introduction
- Motor Nameplates
- Motor Circuits
- Article 430 - Overview of Parts and Tables
- Part 2 - Motor Circuit Conductors
- Part 3 - Overload Protection
- Part 4 - Motor Branch Circuit, Short-Circuit & GFP
- Part 5 - Motor Feeder
- Part 6 - Control Circuits
- Part 7 - Motor Controllers
- Part 8 - Disconnecting Means
- Motor Circuit Calculations
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LE-WM-DVD4565-11
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Understanding the Second Half of the Code
DVD # 12:
- Introduction, Emergency Systems
- Assembly Occupancies
- Hazardous Locations
- Class I Hazardous Locations
- Class II Hazardous Locations
- Intrinsically Safe Systems
- Specific Hazardous Location Applications
- Health Care Facilities
- Swimming Pools, Hot Tubs & Fountains
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LE-WM-DVD4566-11
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Base Layer
Clothing |
Blue Print Reading
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Business / Office |
Calculators/Measuring
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