Workplace Electrical Lock-Out/Tag-Out (LOTO) Procedures and OSHA Standards — Flashcards

Workplace Electrical Lock-Out/Tag-Out (LOTO) procedures are safety protocols (OSHA 29 CFR 1910.147) requiring electrical energy sources to be turned off, isolated, and locked/tagged to prevent accidental machine start-up during maintenance. It protects workers from fatal hazards like electrical shocks, burns, or machinery crushing, by ensuring equipment remains de-energized. 

Key Aspects of LOTO Procedures (The 6-Step Process):
Preparation: Identify energy sources and notify affected employees.
Shutdown: Turn off equipment using normal operating controls.
Isolation: Operate energy isolating devices (breakers, switches) to disconnect power.
Lockout/Tagout: Apply locks and tags to devices to prevent re-energization.
Stored Energy Check: Release or restrain any residual energy (capacitors, springs).
Verification: Test the equipment to ensure it cannot be started (Try-Out). 

OSHA Standards (29 CFR 1910.147) 
Purpose: The Control of Hazardous Energy (Lockout/Tagout) standard 29 CFR 1910.147 mandates procedures for controlling hazardous energy during maintenance.
Training: Employers must train authorized employees (those applying locks) and affected employees (those working nearby).
Components: A compliant program requires written procedures, specialized LOTO devices, and annual inspections/audits.
Compliance: Failure to follow LOTO is frequently on OSHA's top 10 violations list. 

Common LOTO Devices
Padlocks: Physically prevent switches from being flipped.
Tags: Indicate who locked out the equipment and why.
Hasps: Allow multiple workers to lock out a single energy source.
Circuit Breaker Lockouts: Specifically secure electrical panels.