# Electrical Systems

Possibly the most important source of power that we rely on is electricity. Electricity powers our computers, drives the machines tools in a manufacturing shop, and lights the facility. To maintain all this electrical equipment, employees must understand the fundamentals of electricity and the components used to generate, control, and store it.

These classes explain the key concepts of electrical maintenance for individuals in the manufacturing environment. The class content first addresses the main principles, units of measurement, and components used in simple electrical circuits. Intermediate-level classes address methods for calculating electrical units, the principles of alternating current, and specific comparisons regarding the selection of electrical components.

Class Functional Area Format Difficulty Version Department
Classes 1 to 10 of 19
Electrical Units 101

Electrical Units provides a foundational overview of electricity, including fundamental measures and terminology used to discuss electricity. Electricity is the flow of electrons, which are negatively charged particles. The amount of valence electrons in an atom determines how well it ...

Related 1.0 Class:
Electrical Units 110
Maintenance Online Beginner 2.0
Safety for Electrical Work 111

Safety for Electrical Work provides an overview of the risks of working with electricity, as well as safety precautions Electricity can cause shock, burns, and fires. Electric shock occurs when current passes through a person's body. Overheating electrical components can ...

Related 1.0 Class:
Safety for Electric Work 115
Maintenance Online Beginner 2.0
Introduction to Circuits 201

Introduction to Circuits provides a foundational overview of electrical circuitry. Whether wired in series, parallel, or a combination of the two, all circuits consist of a source, path, control, and load. Each of these components serves a purpose, and many ...

Related 1.0 Class:
Intro to Circuits 120
Maintenance Online Intermediate 2.0
Introduction to Magnetism 211

Introduction to Magnetism provides a thorough overview of magnetism and how it relates to electricity. Magnetism is a force of attraction and repulsion that occurs when the molecules in a material align. Materials become magnetized when they are exposed to ...

Related 1.0 Class:
Intro to Magnetism 130
Maintenance Online Intermediate 2.0
DC Circuit Components 221

DC Circuit Components provides a comprehensive overview of the different parts that appear in DC circuits, including source, path, control, and load. DC power sources include batteries, generators, and piezoelectricity. The path of a circuit is made of a conductor, ...

Related 1.0 Class:
DC Circuit Components 140
Maintenance Online Intermediate 2.0
NEC(R) Overview 231

NEC Overview provides information on the contents, purpose, history, and applications of the National Electrical Code. The NEC is written for experienced electrical workers. The NEC(R) is the essential standard on minimum safe installations. While safe practices are encouraged when ...

Related 1.0 Class:
NEC Overview 150
Maintenance Online Intermediate 2.0
AC Fundamentals 241

AC Fundamentals 241 discusses alternating current (AC) as the most common form of electrical power. AC waves can be viewed and measured on the screen of an oscilloscope. Alternating current is economical, can be sent long distances, and can be ...

Related 1.0 Class:
AC Fundamentals 210
Maintenance Online Intermediate 2.0
Electrical Instruments 251

Electrical Instruments 251 describes the various roles of electrical testing instruments in maintaining the safety of electrical workers. From the basic galvanometer to today’s digital multimeters, electrical instruments are primarily used to determine if electricity is flowing properly and safely ...

Related 1.0 Class:
Electrical Instruments 220
Maintenance Online Intermediate 2.0