Transcript lockoutprogram - Pennsylvania`s Enterprise Portal

Pennsylvania Bureau of
Deep Mine Safety
Lockout/Tagout
Program
Pa. Bureau of Deep Mine Safety Lockout/Tagout
Program Outline
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Accident Review
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Planning a Safe Job Site
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Performed the Job Before
Disconnect too far away
De-energize with out locking
Shut down the production
When Lockout Procedures Apply
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Pre-visit the Job Site
Personal Protective Equipment
Locks,Keys and Lockout Devices
Reasons for Not Locking Out
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Discuss 5 fatal accidents
Back to Basics
Warning signals
Training
Non-Electric - Stored energy hazards
Repairs
Guard Removed
Exposure to Moving Parts
Exposure to Danger Zones
Six Steps To Safety
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Notify
Shut Down
Isolate
Lockout/Tagout
Release Stored Energy
Verify
Lockout and Tagout:
You Hold the Key
Lock Out/Tag Out Procedures
Prevents
122 Deaths
60,000 Injuries
Per Year
A preparation plant electrician was checking a Square D
Type 6 Limit Switch to determine why the heavy media
vessel motor had stopped operating. The victim was
apparently attempting to remove/repair the limit
switch,which was located on the vessel refuse chute
when he received a fatal electric shock.
De-energize all circuits before work is started
Utilize proper frame grounding
Use lockout/tagout procedures
Back to Basics
Being an electrician ,was this
person aware of the danger that
existed by working on an
energized electrical circuit?
While disassembling a belt structure, workers would
occasionally receive an electrical shock from the metal
structure. The maintenance foreman, on his way to a mine
phone to call and have all power circuits to the area deenergized, traveled along side the energized structure. Along
the way, he contacted the metal frame and was electrocuted.
De-energize before starting work
Proper frame grounds
All circuits shall include instantaneous and overload
protection
Lockout/Tagout
Red Lights
The red lights were on but the
foreman did not stop.
After a section power center had been advanced, a
repairman was found electrocuted, lying over an
open high voltage(7200 volt AC) splice box about 3
crosscuts outby the power center. The repairman was
not a qualified person.
De-energize circuits before working.
Only qualified electrical persons to work on high
voltage lines.
Lockout/Tagout
Education and Training
The persons selected to work on
electrical circuits must be
trained to safely perform this
work.
After connecting a high pressure flexible hose to a metal air
line, the 28 year old gold miner noticed the coupling was
misaligned and loosened it for realignment when it came apart,
allowing the hose to whip violently.
Maintenance or repair should not be performed on air powered
equipment until the pressure is relieved.
Safety chains or other devises should be installed where a
connection failure can occur.
Lockout/Tagout
Non-Electric
Do lockout/tagout procedures apply to non-electric
equipment? Yes!
1. Safely release all stored energy within the system
prior to performing any repairs or maintenance.
2. Lockout/tagout valves, levers, switches or any
other means of activating the system to be worked
on.
3. Include stored energy hazards in training
sessions.
A 27 year old electrician and coworkers were stringing a new
inactive power line along a line of poles containing energized
high voltage power lines. The lines were separated by 5 feet,
but the inactive line became energized, possibly through
incidental contact or arcing, shocking the electrician with an
estimated 40,000 volts AC.
Keep inactive and active power lines a safe distance apart.
Exercise extreme caution when working around high voltage
lines.
De-energize adjacent power.
Lockout/Tagout
Planning
Planning
1.Make sure your plan includes de-energizing, locking out
and tagging out circuits that can not be a safe distance from
where work is being performed.
2. Plans should also include the use of personal protective
equipment: ( Rubber gloves, hard hat, eye protection and nonconductive shoes etc.)
3. Pre-visit the work area to eliminate unsafe conditions prior
to starting the work.
4. Provide the person performing the work with the necessary
locks, keys, tags and other lockout devises.
REASONS WHY PEOPLE DO NOT
LOCKOUT
• They performed the job before or witnessed someone
else performing work without locking out.
• The disconnecting device is too far away! Not located
where it is convenient for a person to use .
• Worker pulled disconnect but did not lock it out because
they were by themselves and felt no need to lockout.
• They do not want to shut down system, section, plant,
or operation for this minor repair.
Six Basic Shutdown Steps:
1. Prepare for shutdown. Notify affected employees and tell
them which equipment will be involved.
2. Shut down the machine by using normal stopping or
rundown procedures for that piece of equipment.
3. Isolate the machine or equipment from all its energy
sources.
4. Apply appropriate lockout/tagout devices to the machine’s
or equipment’s energy-isolating devices.
5. Safely release all potentially hazardous stored energy.
6. Verify that the equipment cannot be turned on before
starting service, maintenance or repairs.
Lockout/Tagout Procedures
Apply Whenever . . .
a. A machine or piece of equipment is repaired, serviced, lubricated,
cleaned, unjammed, adjusted, or otherwise maintained.
b. A guard or other safety device is removed or bypassed in order to
perform work or maintenance on a machine or piece of equipment.
c. An employee places any part of his or her body in contact with a
point of operation where it could be caught or trapped by moving
machine or equipment parts.
d. An employee places any part of his or her body into a danger
zone associated with the operation of a machine or piece of
equipment.
Give permission to lockout/tagout
and make the work area safe.
Remember...
YOU HOLD THE KEY!