control of hazardous energy-ppt
TRANSCRIPT
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 1/31
By:
Amylene C. Aligan
Jennifer Quino
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 2/31
What you need to knowWhat you need to know
yWhy Lock-Out and Tag-Out?(widely referred to as the ́ control of hazardous energyµ)
y Energy control program components
y Application of energy control devices
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 3/31
SCOPE AND APPLICATIONSCOPE AND APPLICATION
Three core components of energy control
program:
y energy control procedures
y employee training
y periodic inspections
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 4/31
SCOPE AND APPLICATIONSCOPE AND APPLICATION
y What is ´lockout/tagoutµ?
"Lockout/tagout" (LOTO) refers to specific
practices and procedures to safeguard
employees from the unexpectedenergization or startup of machinery and
equipment, or the release of hazardous
energy during service or maintenanceactivities.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 5/31
DefinitionDefinition
HAZARDOUS ENERGY
´electrical, mechanical, hydraulic, pneumatic, chemical,
thermal, or any other form of energy that could
cause injury due to the unintended motionenergizing, startup, or release of such stored or
residual energy in machinery, equipment, piping,
pipelines, or process systemsµ
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 6/31
Forms of energyForms of energy
y P otential Energy. Stored energy that can be
drawn upon to do work.
y K inetic Energy . Energy resulting from
moving objects.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 7/31
Forms of energyForms of energy
y F lammable/Explosive Energy . Energyconverted from the combustion of gases,liquids, solid chemicals, and vapors.
y C hemical Energy. The capacity of asubstance to do work or produce heatthrough a change in its composition.
y Electrical Energy. Energy generatedthrough the conversion of other formssuch as mechanical, thermal, or chemicalenergy.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 8/31
Forms of energyForms of energy
y T hermal Energy . Energy transferred from
one body to another as the result of a
difference in temperature.
y P neumatic and Hydraulic . Pneumatic and
hydraulic energy refers to the energy
inherent in the pressure that a gas or
liquid is under.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 9/31
How does energy become hazardous?How does energy become hazardous?
y Energy in any form becomes hazardous
when it builds to a dangerous level or is
released in a quantity that could injure a
worker.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 10/31
ENERGY CONTROLENERGY CONTROL
PROGRAM COMPONENTSPROGRAM COMPONENTS
y Energy Control ProceduresIt is the management's obligation to establish energy
control procedures.
Situation in which employer need not developLOTO procedure:
1. The machine or equipment has a single energysource which can be readily identified and
isolated2. The isolation and locking out of the energy
source will completely de-energize anddeactivate the machine or equipment;
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 11/31
ENERGY CONTROLENERGY CONTROL
PROGRAM COMPONENTSPROGRAM COMPONENTS
3. A single lockout device will achieve a lock-out
condition;
4. The servicing or maintenance does not createhazards for other employees; and
5. The employer has had no accidents involving
the unexpected activation or re-energization
of the machine or equipment during servicing
or maintenance.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 12/31
ENERGY CONTROLENERGY CONTROL
PROGRAM COMPONENTSPROGRAM COMPONENTS
Procedures must include the points listed below.
1. A specific statement of the intended use of
the procedure.2. Specific procedural steps for shutting down,
isolating, blocking, and securing machines or
equipment to control hazardous energy.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 13/31
ENERGY CONTROLENERGY CONTROL
PROGRAM COMPONENTSPROGRAM COMPONENTS
Procedures must include the points listed below.
3. Specific procedural steps for the placement,
removal, and transfer of lockout devices ortagout devices, and a description of who has
responsibility for them.
4. Specific requirements for testing a machine or
piece of equipment to determine and verify
the effectiveness of lockout devices, tagout
devices, and other energy control measures.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 14/31
ENERGY CONTROLENERGY CONTROL
PROGRAM COMPONENTSPROGRAM COMPONENTS
W hat are the requirements for the use of tagout
devices when lockout devices are NOT capable of
being used? 1. The tags must be attached where the lockout
devices would be.
2. The employer must demonstrate (prove) that
the tagout system will provide protection at
least as effective as locks and will assure full
employee protection.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 15/31
ENERGY CONTROLENERGY CONTROL
PROGRAM COMPONENTSPROGRAM COMPONENTS
Examples include:
1. removing and isolating a circuit element;
2. blocking a controlling switch;
3. opening an extra disconnecting device; and
4. removing a valve handle to reduce the
potential for any inadvertent energizationwhile the tags are attached.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 16/31
ENERGY CONTROLENERGY CONTROL
PROGRAM COMPONENTSPROGRAM COMPONENTS
y Training And Communication
T he employer is required to provide effective training
for all employees covered by the lockout/tagout
standard and ensure that all employees understand
the purpose, function, and restrictions of the energy
control program.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 17/31
ENERGY CONTROLENERGY CONTROL
PROGRAM COMPONENTSPROGRAM COMPONENTS
Different levels of training for the three
categories of workers:
1. Authorized ² lock out or tag out equipment
and service or maintain the equipment2. Affected - operate equipment serviced
under lockout or tagout procedures or work
in an area affected by the procedures.
3. Other employees - work around orotherwise might be in the vicinity of
equipment
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 18/31
ENERGY CONTROLENERGY CONTROL
PROGRAM COMPONENTSPROGRAM COMPONENTS
When must your employees receive LOTO
retraining?
y their job assignments change;
y energy-control procedures change;y equipment or work processes present new
hazards; or
y when they don't follow energy-control
procedures.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 19/31
ENERGY CONTROLENERGY CONTROL
PROGRAM COMPONENTSPROGRAM COMPONENTS
y Periodic Inspections
- to ensure that the energy control procedures
continue to be implemented properly, workers arefamiliar with their responsibilities and any deviations
or procedural inadequacies that are observed are
corrected.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 20/31
ENERGY CONTROLENERGY CONTROL
PROGRAM COMPONENTSPROGRAM COMPONENTS
Either the employer or the inspector must
document each inspection with the following
information:1. The equipment on which the procedure is
used.
2. The date of the inspection.
3. The workers included in the inspection.
4. The person who did the inspection.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 21/31
MATERIALS AND HARD WAREMATERIALS AND HARD WARE
y Lockout/Tagout (LOTO) Device
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 22/31
MATERIALS AND HARD WAREMATERIALS AND HARD WARE
LOTO Device Criteria
1. Durable. Lockout devices must work under
the environmental conditions in which they
are used.2. Standardized. Lockout and
tagout devices must be
designated by color, shape,
or size.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 23/31
MATERIALS AND HARD WAREMATERIALS AND HARD WARE
LOTO Device Criteria
3. Substantial. Lockout devices and tagout devices
must be strong enough that they can't be
removed inadvertently.4. Identifiable. Any employee who sees a lockout
or tagout device must recognize who attached
it and understand its purpose.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 24/31
APPLICATION OF ENERGY APPLICATION OF ENERGY
CONTROL DEVICES CONTROL DEVICES
Basic Steps in Controlling Energy
y identify energy sources;
y de-energize equipment by isolating or blocking
the energy sources;y dissipate potential (stored) energy that could
affect the equipment;
y lock out the equipment's energy-isolating
device; and/or
y tag out the energy-isolating device only if you
can't lock it out.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 25/31
APPLICATION OF ENERGY APPLICATION OF ENERGY
CONTROL DEVICES CONTROL DEVICES
y Machine or equipment isolation
List of safe practices for de-energizing equipment.
1. Disconnecting motors from the equipment
2. Isolating electrical circuits3. Disconnecting equipment from energy
sources
4. Blocking the fluid flow in hydraulic, pneumatic,
or steam systems with control valves or bycapping or blanking the lines.
5. Blocking equipment parts that could bemoved by gravity
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 26/31
APPLICATION OF ENERGY APPLICATION OF ENERGY
CONTROL DEVICES CONTROL DEVICES
List of possible sources of stored energy.
1. Capacitors
2. Coiled springs
3. Elevated machine members
4. Rotating fly wheels
5. Air, gas, steam, chemical, and water systems
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 27/31
APPLICATION OF ENERGY APPLICATION OF ENERGY
CONTROL DEVICES CONTROL DEVICES
y Energy-Isolating Devices
-prevent energy from being transmitted from an
energy source to equipment1. manually operated electrical circuit breakers;
2. main disconnect switches;
3. line valves; and
4. blocks.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 28/31
APPLICATION OF ENERGY APPLICATION OF ENERGY
CONTROL DEVICES CONTROL DEVICES
y Applying Lockout/TagoutDevices
Locking out is a procedure for securing an
energy-isolating device in an off, closed, or
neutral position.Tagging out is a procedure for placing a warning
tag or sign ³ a tagout device ³ on an
energy-isolating device.
*Bottom line: If you can lock it out, do not use tags.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 29/31
APPLICATION OF ENERGY APPLICATION OF ENERGY
CONTROL DEVICES CONTROL DEVICES
y Releasing Stored Energy
After the energy-isolating device has been locked
out or tagged out, all potentially hazardousstored or residual Energy must be relieved,
disconnected, restrained, and otherwise
rendered safe.
5/12/2018 Control of Hazardous Energy-ppt - slidepdf.com
http://slidepdf.com/reader/full/control-of-hazardous-energy-ppt 30/31
APPLICATION OF ENERGY APPLICATION OF ENERGY
CONTROL DEVICES CONTROL DEVICES
y Verifying Machinery or Equipment
Isolation
An authorized employee must verify that the machine
or equipment has been properly isolated and de-energized