Figure 1-9.-Handle locking devices for circuit breakers.

Figure 1-9.-Handle locking devices for circuit breakers.

SAFETY HAZARDS AND

Out of Commission

PRECAUTIONS

OUT-OF-COMMISSION labels (NAVSHIPS

IC Electricians perform maintenance on

9890/7) are red labels (fig. 1-11) used to identify instru-

ments that will not indicate correct measurements

e q u i p m e n t located throughout the ship. IC

Electricians must be aware of the general and specific

because they are defective or isolated from the system.

safety precautions involved in their work. The person

This label indicates that the instrument cannot be relied

who neglects to secure the power to the salinity system

on and must be repaired and recalibrated or be recon-

(circuit SB) when cleaning cells is as likely to be

nected to the system before it can be used properly.