Before beginning work on a 'live' circuit or piece of equipment you should…..
A) only work 'live' if your supervisor is with you
B) only work 'live' if you feel that you are 'competent' to do so
C) isolate the circuit or equipment before work commences
D) secure the isolation before work commences.

Question

Quizplus · Accepted Answer

Isolating the circuit or equipment before work commences (C) ensures that the power supply is disconnected, making it safe to work on. Securing the isolation (D) ensures that the power cannot be inadvertently reconnected while work is in progress, providing an additional layer of safety.

Before Beginning Work on a 'Live' Circuit or Piece of Equipment