Electrician Red Seal · Question
When isolating a circuit for maintenance, after de-energizing and locking out, what is the next safety step to confirm the circuit is de-energized?
After lockout/tagout, it is crucial to test for voltage on all conductors (including neutral and ground, where applicable) at the point of work to confirm the a
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Question: When isolating a circuit for maintenance, after de-energizing and locking out, what is the next safety step to confirm the circuit is de-energized?
Answer options:
- Apply grounding cables.
- Perform an insulation resistance test (Megger test). ✅ Test for voltage on all conductors at the point of work.
- Remove all fuses from the circuit.
Correct answer: Test for voltage on all conductors at the point of work.
Explanation: After lockout/tagout, it is crucial to test for voltage on all conductors (including neutral and ground, where applicable) at the point of work to confirm the absence of voltage before proceeding with any maintenance.
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