Why should a helper inspect extension cords before running power tools?

Field answer

You grab a tangled extension cord out of the gang-box to run your high-speed plasma cutter. You ignore a small nick in the outer insulation jacket layer, and the cord short-circuits and sparks out when the tool draws high load amperage.

Pull damaged cords out of service before running high-load tools. Tag the cord and get a safe lead instead of gambling with shock or fire. The likely recovery is to check the condition, correct prep/setup if it is within your assignment, and bring the foreman clean information before the work creates rework overhead.

What to check first

• Inspect the full cord jacket before use.
• Look for exposed copper, crushed spots, burns, or loose ends.
• Remove damaged cords from service and tag them.
• Keep cords out of wet areas and lift paths.
• Use the right cord/gauge for the tool and site rules.

Why it matters

Bad cords can shock workers, trip breakers, or start fires.

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Final direction belongs to the foreman, approved drawings/specs, manufacturer instructions, pressure/material schedule, employer policy, and AHJ/code requirements.