BASIC ELECTRICITY 101 - University of Nebraska–Lincoln

BASIC ELECTRICITY 101

Kevin Booker, Executive Director

State Electrical Division of Nebraska

Review some typical hazards

associated with electricity and

learn how to mitigate the

hazards.

OBJECTIVES

In the United States,

electrical hazards are

ranked number 6

among all causes of

work-related deaths.

? The

following drawing shows how

circuit breakers access the

incoming power:

SINGLE PHASE ELECTRIC PANEL

ELECTRIC PANEL

Double Pole

Circuit Breaker

240v

Main Power

240v / 120v -1?

Main Breaker

Bus Bars

240v Circuit

Single Pole

Circuit Breaker

120v

120v Circuit

Neutral

Ground

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