Exam Preparation/Detailed NEC Workshop

Exam Preparation = Both days

Continuing Education = Day 1, Day 2, or Both days

Our Detailed NEC Workshop is focused for those preparing for their state license and will cover what you need to know for your electrical examination. Those preparing for their state exam will be attending both Day 1 and Day 2.

Exams in NC are on the 2020 NEC as of March 1st, 2022

NEW Examination Guidelines for North Carolina

Currently licensed electricians should be aware that this class is focused on the current code that the state is testing on and may not provide current practices in the field.

Day 1

You get to learn about the basic flow and navigation of the National Electrical Code & National Fire Alarm and Signaling Code Books. You will be “reintroduced” to these references by relating common slang terms to the formal terminology. The instructor helps connect real life situations to these references so that students are more comfortable and familiar with utilizing their NEC and NFPA. 

Learning Objectives

    • Students will learn correct terminology used in the NEC and NFPA. 
    • Students will learn the arrangement of the NEC and NFPA in order to locate needed information. 
    • Students will practice calculations and relate these calculations to the NEC.  

Navigating the National Electrical Code

Code Formatting 

History, Chapters & Articles, Arrangement & Format

Arrangement of Chapters – 1-4, 5-7, 8, 9

Navigation Methods of the Code

The Paralleled Numbering System

Commonly Referenced Sections

Article 90 – Administration

Article 100 – Definitions

Article 200 – Neutral vs Grounded Conductor

Basic NFPA Code Requirements

Fire department basic requirements – disconnect, etc

Article Point Flow & Format

Remembering Code Articles – 210 to 250

Basic Code Occupancies – Dwelling vs Non-Dwelling

NEC math formulas – percentage math, volume math

Code navigation methods & recommendations 

Grounded vs Grounding 

Ohm’s Law & Review of Electrical Calculations

Foundational Review

Code Wide Factors – 125%, Rounding, Derations, etc

100 Amp Rule

Required Considerations – continuous, derated, phase, etc 

Single Phase vs Three Phase formula

Wye vs Delta

Article 240

Branch-Circuit, Feeder, & Service Load Calculations

Article 220

Standard, Optional, Derations or Demands

General Lighting Loads & Derations, Receptacle Loads & Derations

Non-Dwelling, Optional Dwelling, Multi-family dwelling, Single family dwelling 

Show Window Lighting, Track Lighting Loads, Motor Loads, Heating Loads

Dwelling appliance loads & derating

Neutral sizing & Neutral derating

Table 220


Day 2

You will now review various Tables and Articles in detail and be able to practice calculations as each topic is reviewed. It’s expected that you’ve studied before coming to this workshop so it’s time to reinforce learned concepts and ask clarifying questions. This workshop reviews the most recent NEC changes and how to incorporate them into your day to day work. Finish off with a discussion of electrical business practices and safety. 

Learning Objectives

    • Students will learn how to effectively run a safe electrical business. 
    • Students will review NEC changes and how to incorporate these changes within their day to day jobs. 
    • Students will practice calculations and relate these calculations to the NEC.  

Conductors for General Wiring

Conductor Tables & Ampacities

Multiplying vs Dividing 

Article 240 – High Voltage

Tables 311 – Medium Voltage


Wire Bending Spaces and Box & Conduit Fill

Article 312 – Wire Bending Spaces

Pancake boxes & Domed fixtures

Table 314 – Box volume/Fill calculation

Box & Conduit body fill

Counting Conductors

Pull boxes


Cable Tray Fill, Switches & Wireways

Article 392 – Cable Tray Fill

Conduit & Tubing Fill


Fixed Electric Space Heating

Article 424 – Space Heating Equipment

Branch Circuits 125%


Motors & Motor Circuits

Article 430 – The Six Pack

Motor Ampacities

Motor Branch Circuits

Overload Protection

Overcurrent Protection

Motor Controller

Motor Disconnect


Additional Equipment

Article 440 – A/C Equipment

Article 450 – Transformers


Bonding & Grounding

Article 250 

Electrodes Permitted for Grounding

Grounding Electrode Conductor Sizing

Grounding Electrode Conductor for AC Systems

Grounding Conductor, Main Bonding Jumper, System Bonding Jumper, and Supply-Side Bonding Jumper for AC Systems 

Minimum Sizing Equipment Grounding Conductors for Grounding Raceway & Equipment

Highlight and Interpret

Article 90

Article 110

Article 200


Branch Circuits/Outside Branch Circuits & Feeders

Article 210

Required Branch Circuits in Dwellings

Intro of continuous loads/continuous duty

Article 215 – Feeders

Article 225

Services & Overcurrent Protection

Article 230

Article 240

Key Points & Highlights


Wiring Methods & Materials

Chapter 3

Key Points

Book of Specials

Chapters 5, 6, & 7

Articles 500-516 – Hazardous Classified Locations

Tables 505 & 506

Article 517 – Healthcare Facilities

Article 550 & 552 – Mobile Homes & Park Trailers

Article 553 & 555 – Floating Buildings & Marinas

Article 590 & 647 – Temporary Power & Sensitive Electronic Equipment

Article 610 – Cranes & Hoists

Article 680 & 695 – Pools & Fire Pumps

Flow & Navigation of the NFPA-72

Code Organization & Layout

Arrangement of Code Chapters

Components of Systems, Appliances, & Devices

Interface of Systems & Chapter 21

Alarm system types

Annex and Index

Business Management, Law, and Safety

Eight basic forms – state license, etc

Elements to a business – delegation, etc

Types of businesses – Sole, S vs C, LLC

Insurance – workmen’s comp, etc

Bonds – six types

Estimating – Take off method, etc

Forms & Bookkeeping – Profit & Loss, etc

Permits & Violations – OHSA, etc