All equipment must be ___________ before repairs are performed.

All equipment must be ___________ before repairs are performed.

• A. Grounded
• B. Isolated and completely removed from a circuit
• C. De-energized
• D. Cleaned

Answer: (B)

The main safety step is to guarantee there is no energy that could cause harm during repairs. That means isolating the equipment from all energy sources and ensuring it is completely removed from the circuit so no current can flow, including any stored energy in capacitors or other components. This is typically done with lockout/tagout to prevent re-energizing while work is being done. Grounding alone doesn’t guarantee the equipment is safe, de-energizing can leave residual or stored energy, and cleaning has no effect on electrical energy safety. Therefore, isolating and completely removing the equipment from the circuit is the correct practice.

The main safety step is to guarantee there is no energy that could cause harm during repairs. That means isolating the equipment from all energy sources and ensuring it is completely removed from the circuit so no current can flow, including any stored energy in capacitors or other components. This is typically done with lockout/tagout to prevent re-energizing while work is being done. Grounding alone doesn’t guarantee the equipment is safe, de-energizing can leave residual or stored energy, and cleaning has no effect on electrical energy safety. Therefore, isolating and completely removing the equipment from the circuit is the correct practice.