Safety Requirements

Basic Electronics
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electricity but it is too expensive to be used in any great quantity.

Because of this, copper is the conductor most widely used in various

military applications.

(2) Insulators. Whenever there are more than four electrons in the

outer orbits of the atoms of a substance, these electrons will tend to be

bound, causing restriction of free movement, making the substance an

insulator (figure 4 on the following page).

Common insulating substances

are rubber, plastic, Bakelite, varnish, and fiberboard.

Safety Requirements

Personnel should constantly be on the alert for any signs or indications

which might indicate a malfunction of electric equipment. Besides the more

obvious visual signals, the reaction of other senses, such as bearing,

smell, and touch, can warn of possible electrical malfunctions. Examples of

such signs are: fire, smoke, sparks, arcing, or an unusual sound from an

electric motor.

Frayed and damaged cords which feel warm to the touch;

slight shocks felt when handling electrical equipment; unusually hot-running

electric motors, and other electrical equipment which either fails to

operate