Equipment and machinery including valves, flanges, switches, and similar items shall be locked out at the point of control, for example, at the switch box or valve. If it cannot be locked out at the point of control, it shall be locked out at the next feed source of energy supply.
Cord and Plug Connections
The LOTO program does not apply to work on cord and plug connected electrical equipment when the employee performing the service or maintenance has exclusive control of the plug.
Cord and plug connections that are out of sight shall be locked out at the energy source (for example, the breaker or disconnect feeding), and the employee's tag or lock shall be applied to the plug end of the cord.
After a power or energy source is locked out, the employee shall ensure by test or other allowed method that the energy source is isolated.
When two or more employees are working on the same equipment, each employee shall attach his or her personal lock to the lever, valve, switch, or disconnect (off) switch. An adapter or multi-locking device may be used to attach one or more locks to a single control mechanism.
An employee who is assigned to work on locked-out equipment shall place his or her lock and tag on the equipment and determine that there is no power to the equipment. Employees shall also check with others on the site about the status of the machinery if necessary.
Where necessary, employees shall arrange for jacks, blocks, or other safeguards to be in place along with the lockout.
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