The HOT COLD HOT procedure must be performed again every time power is turned off to perform work.

• A. True
• B. False
• C. Not sure
• D. N/A

Answer: (A)

The important idea here is re-verifying energy isolation whenever power has been turned off before continuing work. After you cut power, you can’t assume the system stays safe—stored energy, automatic resets, or external controls can cause a re-energize or unexpected movement. The HOT COLD HOT steps are meant to re-establish and verify protection: ensure the equipment is truly de-energized (cold) and that it cannot re-energize unexpectedly when you resume, so workers aren’t exposed to shock, burns, or mechanical hazards. Repeating the procedure each time power is turned off keeps the work area safe and prevents surprises during the task. If you skip this re-check, hidden energy or automatic restarts could pose serious risk.