SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/elec-loto-purpose

OSHA's lockout/tagout standard exists to prevent what?

LOTO prevents unexpected startup or stored energy release.

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  1. Overloaded breakers
  2. Counterfeit electrical parts
  3. Unexpected energization or release of stored energy ✔

Why: Someone servicing a machine must not be hurt when it suddenly starts or releases stored energy. Locks and tags keep the power source isolated.

Huh, didn't know that: The rule is OSHA 29 CFR 1910.147, the control of hazardous energy.

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After hours fighting a stubborn light switch, the electrician gave up and just wrote OFF at the top and ON at the bottom.
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References

Answer: Unexpected energization or release of stored energy. Someone servicing a machine must not be hurt when it suddenly starts or releases stored energy. Locks and tags keep the power source isolated.

  1. OSHA 29 CFR 1910.147 The control of hazardous energy www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147
    prevent unexpected energization, start-up or release of stored energy in order to prevent injury to employees.
    Checked 2026-10-10.

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Workplace Safety (OSHA)Under OSHA rules, who normally removes a lockout or tagout device?Workplace Safety (OSHA)At a minimum, how often must a lockout/tagout procedure be inspected?Workplace Safety (OSHA)Why is a lock considered stronger than a tag in lockout/tagout?

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