What does it mean when a line is described as "dead"?

• A. It is energized and dangerous to touch.
• B. It is grounded and isolated.
• C. It is de-energized and safe to approach.
• D. It is tested for voltage with a meter.

Answer: (C)

When a line is described as dead, there is no electrical energy present on that conductor. It’s de-energized, so touching or working on it carries a much lower risk of shock or arc if proper safety procedures are followed. The term conveys that the line has been isolated from its power source and is not supplying voltage. It’s not simply about a test result or being grounded; those conditions aren’t guaranteed by the label alone, which is why verification with a properly rated meter and adherence to lockout/tagout procedures are still essential.