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Sec. 7.2(a). 4.4 (d 3) LOCK-OUT TAG-OUT

Energized


Machines and equipment are energized when they are connected to an energy source or they contain residual or stored energy.

Energy Source


Any source of electrical, mechanical, hydraulic, pneumatic, chemical, thermal, or other energy.

Lockout


The placement of a lockout device on an energy-isolating device, in accordance with an established procedure, ensuring that the energy-isolating device and the equipment being controlled cannot be operated until the lockout device is removed.

Other Employees


All employees who are or may be in an area where energy controls procedures may be utilized. This may include contractors or other building occupants such as faculty and students.

Primary Authorized Employee


A person designated to exercise primary responsibility for the implementation and coordination of LOTO in a given scenario.

Residual Power


Energy which is retained in a system, machine or unit when the supply line disconnect is placed on the OFF position. Power capacitors and electric or magnetic fields are examples that may have residual power if not properly dissipated.

Residual Pressure


The differential pressure remaining within a component after the pressure source is closed off.

Tag-out


The placement of a tag-out device on an energy-isolating device, in accordance with an established procedure, to indicate that the energy-isolating device and the equipment being controlled may not be operated until the tag-out device is removed.

Tag-out Device


Any prominent warning device, such as a tag and a means of attachment that can be securely fastened to an energy-isolating device to indicate that the machine or equipment to which it is attached may not be operated until the tag-out device is removed.
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