Before performing work on an electrical circuit where an open neutral might be created, what is required?

• A. De-energize the circuit
• B. Leave the circuit energized to observe load
• C. Remove all fuses only
• D. Disconnect only the hot conductors

Answer: (A)

The essential step is to remove all electrical energy from the circuit before starting work. De-energizing eliminates the source of voltage, reducing the risk of shock, arc flash, or unintended energizing, especially when an open neutral could cause unpredictable or floating voltages on equipment.

Once de-energized, lockout/tagout and verify zero voltage with a test instrument to ensure the circuit truly is safe to work on. An open neutral can still allow hazardous conditions if the circuit remains energized or partially connected, so confirming a zero-energy state is crucial.

Leaving the circuit energized to observe load is unsafe. Merely removing fuses or disconnecting only the hot conductors does not guarantee the circuit is de-energized or safe, since other paths could still carry voltage or be re-energized.