Question

What is the purpose of a "lock-out device" in electrical systems?

a. allows each fuse or circuit breaker to be disconnected individually
b. ensures that only one fuse or circuit breaker is ever disconnected
c. prevents electrical circuits from ever being disconnected
d. allows multiple fuses or circuit breakers to be disconnected simultaneously

Answer 1

A lock-out device is a safety mechanism used in electrical systems to ensure that circuits are kept off and de-energized during maintenance, preventing unexpected energization and protecting workers.

Step-by-step explanation:

The purpose of a "lock-out device" in electrical systems is to ensure that a circuit is completely turned off, de-energized, and not started up again before the maintenance or repair work is completed. It is a safety device that protects workers from electrocution, electric shock, or other injuries that could occur if the circuit were to become unexpectedly energized. Lock-out devices are used to immobilize circuit breakers and fuses and keep them in the off position while maintenance work is being done. These devices are essential for complying with safety regulations and preventing accidents in environments where electrical maintenance is performed.