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SESK: Stuff Everyone Should Know · sesk.info/wood-third-prong

What must never be removed from a power tool plug, according to OSHA?

The third prong (ground).

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  1. The cord
  2. The switch
  3. The third prong ✔

Why: A three-wire cord with a ground sends stray current away from you if there is a fault. OSHA says the third prong must never be removed from the plug.

Huh, didn't know that: OSHA also says never carry a tool by its cord or hose.

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References

Answer: The third prong. A three-wire cord with a ground sends stray current away from you if there is a fault. OSHA says the third prong must never be removed from the plug.

  1. OSHA Hand and Power Tools (OSHA 3080) www.osha.gov/sites/default/files/publications/OSHA3080.pdf
    The third prong must never be removed from the plug.
    Checked 2026-10-10.

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