Circuit Breakers and Fuses is a course designed to familiarize participants with the use of overcurrent protective devices in electrical installations. After completing this course, participants should be able to describe hazards associated with faults and overloads, describe the operation and common types of circuit breakers and fuses, and describe basic procedures for troubleshooting problems with circuit breakers and fuses.
Describe the following types of overcurrent: short circuit, ground fault, arc fault, and overload.
Identify different types of overcurrent protective devices and describe appropriate uses for each type.
Describe some general safety practices that are associated with the use of overcurrent protective devices.
Describe the use of selective coordination of overcurrent protective devices in electrical systems.
Describe the basic steps of the point-to-point method for calculating short-circuit currents.
Describe the basic operation of a standard molded-case circuit breaker.
Identify and describe the following types of circuit breakers: standard molded-case circuit breakers, multipole circuit breakers, ground fault circuit interrupter (GFCI) circuit breakers, and current-limiting circuit breakers.
Describe classifications, ratings, and labeling requirements for circuit breakers.
Describe basic procedures involved in troubleshooting a standard molded-case circuit breaker.
Describe the function and basic components of fuses.
Describe the ratings that apply to fuses.
Describe the basic components, markings, UL classes, and appropriate uses for single-element cartridge fuses and dual-element cartridge fuses.
Identify the basic features and appropriate uses of Edison-base plug fuses.
List some guidelines for sizing dual-element time-delay fuses and non-time delay fuses.
Describe basic procedures for troubleshooting cartridge fuses.
AEC Libraries
- AEC Complete
- Facilities Management & Maintenance
Industrial Libraries
- Facilities Management & Maintenance
- Facilities Management & Maintenance Complete
- Industrial Complete
- Industrial Maintenance
- Industrial Maintenance - Electrical
- Industrial Premium
