Advanced Electrical Inspection Training Course

Welcome to InterNACHI's free, online "Advanced Electrical Inspection Training Course." This course is provided by our tuition-free college, InterNACHI® School.  


The goal of this course is to teach how to inspect a residential electrical panel, including identifying common electrical violations, defects, and concerns.  


Upon successful completion of this course, you shall be able to inspect an electrical panel, including identifying common electrical violations, defects, and concerns. Follow the instructors as they perform inspections of mock-up panels and components in the studio and on location at two residential properties. 

Course includes:

  • 3,271 words;
  • 211 minutes of video;
  • student book;
  • inspection and writing assignment;
  • research and writing assignment;
  • 50 quiz questions in 1 quiz.
  • 25-question final exam (drawn from a larger pool);
  • instant grading; and
  • a downloadable, printable Certificate of Completion.

You will learn the following topics:

  • Inspecting the electrical panel, the interior, the bathroom, the kitchen;
  • Grounding and bonding;
  • Determining the size of the service;
  • Safety procedures;
  • Common electrical defects and concerns;
  • Inspecting the panel and "sub" panel;
  • Double-taps and over-fusing;
  • Sizing the A/C breaker;
  • Multi-wire branch circuits;
  • Aluminum wires;
  • Electric dryers and appliances;
  • Service conductors;
  • Grounding rods, GECs, and water pipes;
  • Electrical inspection devices and tools;
  • Infrared on breakers;
  • Federal Pacific and Zinsco;
  • GFCI and AFCI breakers and receptacles;
  • Proper procedures for testing devices;
  • Electrical violations; and
  • Disconnects for detached structures.

Advanced Electrical Inspection Training Course

Course # 3302



Estimated hours for the average student

Academic Engagement

Reading online course instructional material at 140 words per minute.


Watching, listening, and studying instructional video

Taking quizzes


Taking the exam


Conducting a directed and independent inspection study performed according to the Standards of Practice, including the development of an inspection report


Submitting an inspection and writing assignment


Submitting a research and writing assignment




Studying and reviewing instructional material in preparation for taking quizzes and exam 


Reading the downloaded student course book including taking the quizzes with the book
Reading, research, and studying related to completing the research and writing assignment


Studying and preparing for inspection processes according to a Standards of Practice, including capturing and storing digital images with a camera or device, making observations, evaluating conditions, deducing, formulating opinions, communicating observations in written form, attaining competency in performing inspections and using an inspection checklist or software and other inspection tools in producing a report. 



Sub Total


Overall Total

30.0 clock hours
3.0 CEU 

Reminder to members:  InterNACHI's Code of Ethics 1.10 requires that you comply with all government rules and licensing requirements of the jurisdiction where you conduct business.  InterNACHI's courses and Standards generally exceed the Standards of Practice that you are required to abide by locally. 
This course has been approved by:
Paul W. Abernathy, the Electrical Guru.
Ben Gromicko, Director of Education.
Some features which make InterNACHI's courses superior to existing continuing education options:
  • The course is free for all InterNACHI members.
  • The course is written in pure XHTML code for quick loading.  The course loads fine on old computers and loads fast, even with dial-up.
  • The course is designed using a hierarchal menu coupled with a sequential page navigation.  This provides the student with the option to easily repeat areas of weakness.
  • The course permits the student to start, stop and restart any part of the course as often as desired.
  • There are a variety of images within the course, including diagrams, illustrations and photos. 
  • The illustrations can be enlarged for clearer viewing by clicking on them.
  • The text is integrated into InterNACHI's Inspector Glossary.  Rolling over blue-colored terms provides their definition.
  • The final exam uses multiple-choice questions that reference the images. 
  • The course's quizzes and final exam have numerous advantages over traditional exam systems:
    1. The course, quizzes and final exam incorporate built-in intelligence which identifies and strengthens each student's unique subject weaknesses.
    2. Not only is each question weighted with regard to score, but each answer is weighted, as well as the correctness of each answer being weighted.
      1. Answers to easy questions are weighted such that the student is penalized, in terms of score, for answering incorrectly, but rewarded modestly for answering correctly.
      2. Answers to difficult questions are weighted such that the student is rewarded, in terms of score, for answering correctly, but not penalized for answering incorrectly.
      3. Answers to questions regarding basic safety, or questions every inspector should know the answer to, are weighted such that the student is severely penalized, in terms of score, for answering incorrectly.
  • Upon passing the final exam, the student can print out a Certificate of Completion which is auto-generated in their own name.
The student's (InterNACHI member's) information is recorded on InterNACHI's servers for membership compliance verification, and automatically logs completion into InterNACHI's online Continuing Education log.