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An Introduction to Interior Electrical Distribution Systems

COURSE NO: E03-019
An Introduction to Interior Electrical Distribution Systems
Course Highlights

This online engineering PDH course provides an introduction to interior circuitry and electrical equipment found in buildings and related infrastructure. Topics covered include transformers, service entrances, switchgear, switchboards, panelboards, motor controls and motor control centers.


This 3 PDH online course is intended for electrical engineers and other design and construction professionals seeking an introduction to the design of interior electrical distribution systems for buildings and related infrastructure.

Learning Objectives

This PE continuing education course is intended to provide you with the following specific knowledge and skills:

  • Learning how to select and specify transformers
  • Learning about service entrance requirements, switchgear and switchboards
  • Understanding the basic considerations when employing panel boards
  • Learning about the requirements for motor control centers
  • Understanding the fundamentals of motor controls and motor control circuits
  • Learning how and when to employ surge protection devices
  • Learning how to design for facilities requiring cascaded suppression system protection
  • Learning about raceways and wiring devices
  • Learning about emergency engine generator sets
  • Learning about automatic transfer equipment
  • Learning how to employ stationary batteries and battery chargers
Course Document

In this professional engineering CEU course, you need to review the course document titled, "An Introduction to Interior Electrical Distribution Systems".

To view, print and study the course document, please click on the following link(s):
An Introduction to Interior Electrical Distribution Systems (362 KB)
Course Quiz
Once you complete your course review, you need to take a multiple-choice quiz consisting of fifteen (15) questions to earn 3 PDH credits. The quiz will be based on the entire document.


The minimum passing score is 70%. There is no time limit on the quiz, and you can take it multiple times until you pass at no additional cost.
Certificate of Completion

Upon successful completion of the quiz, print your Certificate of Completion instantly. (Note: if you are paying by check or money order, you may print your Certificate of Completion after we receive your payment.) For your convenience, we will also email you your Certificate of Completion. Also, you can log in to your account at any time to access and print your Certificate of Completion.

To buy the course and take the quiz, please click on: