What is lockout - tagout procedure

Lockout-tagout Policies and Procedures

Covered by OSHA 1910.147, lockout-tagout protects workers from hazardous energy during overhead crane repair and other machine and equipment service.

Lockout involves using a permanent locking device - such as a lock, cover or chain - to prevent energy sources from being turned on and potentially harming maintenance workers or other personnel

Tagout involves using a tag to warn others to keep a locked-out switch, circuit breaker or valve turned off.

Tryout In the case of electrical power, a technician, wearing National Fire Protection Association approved gear, uses a contact meter to verify that all phases dropped out. Even when the breaker is switched off, one of the contacts could be welded shut, delivering power to a crane.

Items which are normally included in the documented lockout-tagout policy:

• Communication requirements: who to inform before using lockout-tagout.
• When the use of lockout-tagout is permitted.
• Identification of each of the switches, controls, valves and other energy isolating devices present at the site. The role of each device should also be explained.
• The lockout-tagout sequences to be followed before, during and after maintenance.
• Safety and operational considerations regarding other products on the same runway or on adjacent runways.
• Lockout-tagout policy should be reviewed each year to make certain it is current.

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