Lock out and Tag out Training ppt and pdf

This presentation document will brief on hazardous energy control / lock out and tag out procedure.

1. Hazardous Energy Control
/ Lock out Tag out (LOTO)
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These are just basic training slides, may vary from standards

2. What is Hazardous Energy?
HazardousenergyisdefinedbytheCanadianStandardsAssociation(CSA)as:"anyelectrical,
mechanical,pneumatic,chemical,nuclear,thermal,gravitational,orotherenergythatcan
harmpeople"(CSAZ460"ControlofHazardousEnergy-LockoutandOtherMethods").Some
energysourcesareobvious,suchaselectricity,heatinafurnace,orsomethingthatmightfall.Others
maybehiddenhazardssuchasairpressureinasystemoratightlywoundspring.
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3. What are Types of Hazardous Energy?
Electricalenergyisthemostcommonformofenergyusedinworkplaces.Itcanbeavailablelive
throughpowerlinesoritcanalsobestored,forexample,inbatteriesorcapacitors.Electricitycan
harmpeopleinoneofthreeways:
1.Byelectricalshock.
2.Bysecondaryinjury.
3.Byexposuretoanelectricalarc.
Hydraulicpotentialenergyistheenergystoredwithinapressurizedliquid.Whenunderpressure,
thefluidcanbeusedtomoveheavyobjects,machinery,orequipment.Examplesinclude:automotive
carlifts,injectionmoldingmachines,powerpresses,andthebrakingsystemincars.Whenhydraulic
energyisreleasedinanuncontrolledmanner,individualsmaybecrushedorstruckbymoving
machinery,equipmentorotheritems
Pneumaticpotentialenergyistheenergystoredwithinpressurizedair.Likehydraulicenergy,when
underpressure,aircanbeusedtomoveheavyobjectsandpowerequipment.Examplesinclude
sprayingdevices,powerwashers,ormachinery.Whenpneumaticenergyisreleasedinan
uncontrolledmanner,individualsmaybecrushedorstruckbymovingmachinery,equipmentorother
items.
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4. What are Types of Hazardous Energy?
Chemicalenergyistheenergyreleasedwhenasubstanceundergoesachemicalreaction.The
energyisnormallyreleasedasheat,butcouldbereleasedinotherforms,suchaspressure.A
commonresultofahazardouschemicalreactionisfireorexplosion.
Radiationenergyisenergyfromelectromagneticsources.Thisenergycoversallradiationfrom
visiblelight,lasers,microwave,infrared,ultraviolet,andX-rays.Radiationenergycancausehealth
effectsrangingfromskinandeyedamage(lasersandUVlight)tocancer(X-rays).
Gravitationalpotentialenergyistheenergyrelatedtothemassofanobjectanditsdistancefrom
theearth(orground).Theheavieranobjectis,andthefurtheritisfromtheground,thegreaterits
gravitationalpotentialenergy.Forexample,a1kilogram(kg)weightheld2metersabovetheground
willhavegreatergravitationalpotentialenergythena1kgheld1meterabovetheground.
Mechanicalenergyistheenergycontainedinanitemundertension.Forinstance,aspringthatis
compressedorcoiledwillhavestoredenergywhichwillbereleasedintheformofmovementwhen
thespringexpands.Thereleaseofmechanicalenergymayresultinanindividualbeingcrushedor
struckbytheobject.
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5. Example
Itisimportanttounderstandthatalloftheseenergytypescanbeconsideredaseithertheprimary
energysource,orasresidualorstoredenergy(energythatcanresideorremaininthesystem)
Primaryenergysourceisthesupplyofpowerthatisusedtoperformwork.
Residualorstoredenergyisenergywithinthesystemthatisnotbeingused,butwhenreleasedit
cancauseworktobedone.
Forexample:whenyoucloseavalveonapneumatic(air)orhydraulic(liquid)poweredsystem,you
haveisolatedthesystemfromitsprimaryenergysource.However,thereisstillresidualenergystored
inanyairorliquidthatremainsinthesystem.Inthisexample,removingtheresidualenergywould
includebleedingouttheliquid,orventingouttheair.Untilthisresidualenergyisremovedfromthe
system,workcanoccur,whetheronpurposeorinadvertently
Notproperlyassessinganddissipatingstoredenergyisoneofthemostcommoncausesfor
workplaceincidentsthatinvolvehazardousenergy.Controlofhazardousenergyincludesisolatingthe
systemfromitsprimarypowersourceandresidualenergy.
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6. Is Lockout and Hazardous Energy Control the
Same Thing?
Thetermslockoutandhazardousenergycontrolaresometimesusedinterchangeably,buttheyare
NOTthesamething.
Hazardousenergycontrolisabroadtermdescribingtheuseofprocedures,techniques,designs
andmethodstoprotectpersonnelfrominjuryduetotheinadvertentreleaseofhazardousenergy.
Lockoutistheplacementofalockortagonanenergy-isolatingdeviceinaccordancewithan
establishedprocedure.Itindicatesthattheenergy-isolatingdeviceisnottobeoperateduntilremoval
ofthelockortag.Therefore,lockoutisonewayinwhichhazardousenergycontrolcanbeachieved.
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7. What is the purpose of a hazardous energy
control program?
Inmostcases,equipmentorsystemswillhavesafetydevicesbuiltin.Thesesafetydevicesinclude
barrierguardsandsafeguardingdevicestohelpprotectworkersduringnormaloperations.However,
duringmaintenanceorrepairs,thesedevicesmayhavetoberemovedorby-passed.Inthese
situations,ahazardousenergycontrolprogramisneeded.
Ahazardousenergycontrolprogramisusedtomaintainworkersafetybypreventing:
•Unintendedreleaseofstoredenergy.
•Unintendedstart-up.
•Unintendedmotion.
•Contactwithahazardwhenguardsareremovedorsafetydeviceshavebeenby-passedorremoved.
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8. What must an energy-control procedure
include?
1.Astatementonhowtousetheprocedures;
2.Specificproceduralstepstoshutdown,isolate,block,andsecuremachines;
3.Specificstepsdesignatingthesafeplacement,removal,andtransferoflockout/tagout
devicesandidentifyingwhohasresponsibilityforthelockout/tagoutdevices;and
4.Specificrequirementsfortestingmachinestodetermineandverifytheeffectivenessof
lockoutdevices,tagoutdevices,andotherenergy-controlmeasures.
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9. What must workers do before they begin service
or maintenance activities?
1.Prepareforshutdown;
2.Shutdownthemachine;
3.Disconnectorisolatethemachinefromtheenergysource(s);
4.Applythelockoutortagoutdevice(s)totheenergy-isolatingdevice(s);
5.Release,restrain,orotherwiserendersafeallpotentialhazardousstoredorresidual
energy.Ifapossibilityexistsforreaccumulationofhazardousenergy,regularlyverify
duringtheserviceandmaintenancethatsuchenergyhasnotreaccumulatedto
hazardouslevels;and
6.Verifytheisolationanddeenergizationofthemachine.
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10. Lockout Process
•De-energize machinery
•Stop equipmentusing normal procedure
•Isolateeach source.
•Each person must lockouteach source of energy. The key(s) must be removed and secured in
personal control.
•Verifyisolation of each energy source
•Return controls to “neutral”, “stop” or “off ” positions after the verification.
•Perform the required work.
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11. What are the requirements for lockout/tagout
devices?
Durableenoughtowithstandworkplaceconditions.Tagoutdevicesmustnotdeteriorateor
becomeillegibleevenwhenusedwithcorrosivecomponentssuchasacidoralkalichemicals
orinwetenvironments.
Standardizedaccordingtocolor,shape,orsize.Tagoutdevicesalsomustbestandardized
accordingtoprintandformat.Tagsmustbelegibleandunderstandablebyallemployees.
Theymustwarnemployeesaboutthehazardsifthemachineisenergized,andoffer
employeesclearinstructionsuchas:“DoNotStart,”“DoNotOpen,”“DoNotClose,”“Do
NotEnergize,”or“DoNotOperate.”
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12. What are the requirements for lockout/tagout
devices?
Substantialenoughtominimizethelikelihoodofprematureoraccidentalremoval.
Employeesshouldbeabletoremovelocksonlybyusingexcessiveforcewithspecialtools
suchasboltcuttersorothermetal-cuttingtools.Tagattachmentsmustbenon-reusable,self-
locking,andnon-releasable,withaminimumunlockingstrengthof50pounds.Tagsmustbe
attachablebyhand,andthedeviceforattachingthetagshouldbeaone-piecenyloncable
tieoritsequivalentsoitcanwithstandallenvironmentsandconditions.
Labeledtoidentifythespecificemployeesauthorizedtoapplyandremovethem.
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13. Electrical, pneumatic, hydraulic energy
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14. www.askmaaz.com 14

15. Tag-out
Tag-outinlieuofLockout
•Securely attach “locked out” tag in addition to the lock.
•If an energy-isolating device is not physically capable
of being locked out, use tags in place of locks.
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16. Release from Lockout/Tag-out
When work is complete, re-energize the machine:
Inspect the work area.
Remove locks.
Visually verifythat all personnel are clear Re-energize the equipment.
Lock Removal
No one is authorized to remove another person’s lock.
Procedures to remove the lock:
The employee’s supervisor verification
An attempt to contact the lock owner
If this attempt is unsuccessful, notify the lock owner.
Evaluate the equipment.
Carry out the ‘Release from Lockout/Tag-out’ procedures.
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17. Lock out devices
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18. Lock out devices
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19. Examples of TagsD A N G E R
THE COMMONWEALTH INDUSTRIAL GASES LIMITED
DO NOT OPERATE
DO NOT REMOVE
THIS TAG
DEFECT: ……………………….…………………..
………………………………………………………
………………………………………………………
THIS TAG PROTECTS: …………………………..
SIGNATURE: ……………………………………...
SEE OTHER SIDE
BLOCK LETTERS
DATE: …………………………………….……….. D A N G E R
THE COMMONWEALTH INDUSTRIAL GASES LIMITED
DO NOT OPERATE
DO NOT REMOVE
THIS TAG
SEE OTHER SIDE
A PERSON’S LIFE MAY BE ENDANGERED
TO DO SO WILL RENDER YOU LIABLE
TO SEVERE DISCIPLINARY MEASURES
AND/OR LEGAL ACTION
IT IS HERE FOR A PURPOSE AND MAY
NOT BE REMOVED EXCEPT BY THE
PERSON WHO PLACED IT
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20. Questions and Discussion
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