Electrical Safety Handbook

Introduction

Modern society has produced several generations who have grown accustomed to electricity.
This acclimatization has been made easier by the fact that electricity is silent, invisible,
odorless, and has an “automatic” aspect to it. In the late 1800s, hotels had to place signs
assuring their guests that electricity is harmless. By the late 1900s, signs had to be hung to
remind us that electricity is a hazard. In fact, the transition of electricity from a silent
coworker to a deadly hazard is a change that many cannot understand until it happens to
them. Because of these facts, the total acceptance of an electrical safety procedure is a
requirement for the health and welfare of workers.
Understanding the steps and procedures employed in a good electrical safety program
requires an understanding of the nature of electrical hazards. Although they may have trouble
writing a concise definition, most people are familiar with electric shock. This often
painful experience leaves its memory indelibly etched on the human mind. However, shock
is only one of the electrical hazards. There are two others—arc and blast. This chapter
describes each of the three hazards and explains how each affects the human body.
Understanding the nature of the hazards is useless unless protective strategies are developed
to protect the worker. This chapter also includes a synopsis of the types of protective
strategies that should be used to protect the worker.
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