HAZARDOUS ENERGY CONTROL (LOCKOUT/TAGOUT)
不良研究所 Policy:听
Unfortunately, many workers are seriously injured and in some instances die from on-the-job
accidents. Almost every case could have been prevented. In most cases though, it is
not until a serious incident occurs causing injury and/or death, that procedures are
finally developed or put into action. It isn't always the new guy on the job who gets
into such situations - it may be the old-timer who is certain听"IT WON'T HAPPEN TO ME".听
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In accordance with the attached OSHA Control of Hazardous Energy guidelines, personnel
at the University of Louisiana at Monroe will ensure that all necessary steps will
be taken while servicing and performing maintenance on machinery or equipment or processes
where a sudden release of stored energy might result in accidental injury. Energy
sources are not limited to electrical oriented machinery, equipment or processes,
but will include any source of sudden energy release which may be harmful (i.e. air
pressure, heat, steam, springs under tension or hydraulic systems).
RESPONSIBILITIES
EMPLOYEES:听Only employees who are qualified and authorized will service, perform maintenance
or make any adjustments to machinery, equipment or processes having the potential
of a hazardous energy release. Work will not be performed in such a manner to bypass
the requirements of this standard. Workers who fail to comply may be subject to disciplinary
actions which may include dismissal according to the seriousness of the particular
incident.
SUPERVISORS:听Supervisors are responsible for the well-being and training of all workers under
their cognizance as well as ensuring that all necessary safety procedures are followed.
In any situation where the worker refuses to follow recognized guidelines, the supervisor
will require the individual to leave the work area as soon as possible. Disciplinary
actions may be taken in accordance with Human Resources standards.
Employees will be issued tools or devices needed to meet the requirements of this
standard and will work in accordance with this standard.
Training
Each authorized employee shall receive training in the recognition of applicable hazardous
energy sources, the type and magnitude of the energy available in the workplace, and
the methods and means necessary for energy isolation and control annually.
Each affected employee shall be instructed in the purpose and use of the energy control
procedure every three years.
Employee retraining shall be provided for all authorized and affected employees whenever
there is a change in their job assignments, a change in machines, equipment or processes
that present a new hazard, or when there is a change in the energy control procedures.
Definitions
Affected employee -听An employee whose job requires him/her to operate or use a machine or equipment on
which servicing or maintenance is being performed under lockout or tagout, or whose
job requires him/her to work in an area in which such servicing or maintenance is
being performed.
Authorized employee - 听A person who locks out or tags out machines or equipment in order to perform servicing
or maintenance on that machine or equipment. An affected employee becomes an authorized
employee when that employee's duties include performing servicing or maintenance covered
under this section.
Capable of being locked out -听An energy isolating device is capable of being locked out if it has a hasp or other
means of attachment to which, or through which, a lock can be affixed, or it has a
locking mechanism built into it. Other energy isolating devices are capable of being
locked out, if lockout can be achieved without the need to dismantle, rebuild, or
replace the energy isolating device or permanently alter its energy control capability.
Energized - 听Connected to an energy source or containing residual or stored energy.
Energy isolating device - A mechanical device that physically prevents the transmission or release of energy,
including but not limited to the following: a manually operated electrical circuit
breaker; a disconnect switch; a manually operated switch by which the conductors of
a circuit can be disconnected from all ungrounded supply conductors; no pole can be
operated independently; a line valve; a block; and any similar device used to block
or isolate energy. Push buttons, selector switches and other control circuit type
devices are not energy isolating devices.
Energy source - Any source of electrical, mechanical, hydraulic, pneumatic, chemical, thermal, or
other energy.
Hot tap - A procedure used in the repair, maintenance and services activities which involves
welding on a piece of equipment (pipelines, vessels or tanks) under pressure, in order
to install connections or appurtenances.听 The procedure is commonly used to replace
or add sections of pipeline without the interruption of services for air, gas, water,
steam, and petrochemical distribution systems.
Lockout -听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.
Lockout device - 听A device that utilizes a positive means such as a lock, either key or combination
type, to hold an energy isolating device in a safe position and prevent the energizing
of a machine or equipment. Included are blank flanges and bolted slip blinds.
Normal production operations - The utilization of a machine or equipment to perform its intended production function.
Servicing and/or maintenance - Workplace activities such as constructing, installing, setting up, adjusting, inspecting,
modifying, and maintaining and/or servicing machines or equipment. These activities
include lubrication, cleaning or unjamming of machines or equipment and making adjustments
or tool changes, where the employee may be exposed to the unexpected energization
or startup of the equipment or release of hazardous energy.
Setting up - Any work performed to prepare a machine or equipment to perform its normal production
operation.
Tagout -听The placement of a tagout 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 tagout device is removed.
Tagout device - A prominent warning device, such as a tag and a means of attachment, which can be
securely fastened to 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 tagout device is removed.
LOCKOUT/TAGOUT PROCEDURES
Lockout/tagout procedures to be used before any equipment adjustment, maintenance
or working on exposed energized circuitry:
- Locate energy source and control method.
- Notify employees or anyone using facilities of the necessity for using lockout/tagout
procedures.
- Determine lockout and/or tagout energy controls to be applied in Off or safe positions
of switches, panels and breakers. If it is appropriate for the job, position a person
at the panel or at the controls to ensure protection.
- Test to verify energy has been isolated from equipment or exposed working surfaces.
- Perform necessary adjustments, repairs or maintenance. When completed, ensure that
all covers, guards and protective devices are in place.
Notify all affected personnel before removing lockout/tagout devices and re-energizing.
Only the worker who applied the lock or tag is authorized to remove it.
Group Lockout/Tagout
When more than one person is involved in a job-associated lockout/tagout control,
there is a shared responsibility to work together and make certain that all parties
are in the control chain. Each authorized employee shall affix a personal lockout
or tagout device to the group lockout device and all parties will be made aware as
to the status of the work. When the work is completed each will remove his individual
device in order of placement.
Contractors
Bids for contracts must specify that the bidder will furnish a copy of their Lockout/
Tagout Policy and all necessary documentation that the individuals to be working in
the area have received the proper training.听听 A copy of this information should be
forwarded to the Environmental Health & Safety Office for record retention.
If a contractor needs to lockout a piece of 不良研究所 equipment, it shall be done in conjunction
with a 不良研究所 authorized employee.听 Each party shall affix a personal lockout or tagout
device to a group lockout device.听 All parties shall be made aware as to the status
of the work.听听
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Safety Office