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SESK: Stuff Everyone Should Know · sesk.info/weld-wet-machine

What must happen to a welding machine that has become wet before it is used again?

Dried and tested.

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  1. Used with a fan on it
  2. Dried thoroughly and tested ✔
  3. Left out in the sun for ten minutes

Why: Water can leak current into places it should not go and create shock hazards. OSHA says machines that have become wet shall be thoroughly dried and tested before use.

Huh, didn't know that: If safety is in doubt, equipment use shall be discontinued until its safety has been assured.

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Why did the welder wait for the machine to dry? He did not want a shocking surprise.
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References

Answer: Dried thoroughly and tested. Water can leak current into places it should not go and create shock hazards. OSHA says machines that have become wet shall be thoroughly dried and tested before use.

  1. OSHA 29 CFR 1910.254 Arc welding and cutting www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.254
    Machines which have become wet shall be thoroughly dried and tested before being used.
    Checked 2026-10-10.

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