PERMIT TO WORK

Permit to work salient featuresFOR WHOSE SAFETY ??Acceptors Person doing the Job & People around

WHY A WRITTEN DOCUMENT ??To ensure Accountability and Responsibility

NOT MERELY A PIECE OF PAPER !A check list only as good as the people following it.

WORK PERMITMAY SAVE A LIFE OR CAUSE DEATH !

Types Of PermitPermit To Work (Cold work)

Hot Work Permit

Vessel Entry Permit

Excavation Break-in Permit

Scaffolding Permit

DefinitionsISSUING AUTHORITYOwner with operating controlAuthority given after formal validation Knowledge of operating area and permit system

RECEIVING AUTHORITYResponsible for execution of specified jobAuthority given after formal validation Knowledge of operating area and permit system

ACCEPTORAny Permanent employee - Nominee of the Executor / Receiving authority

ResponsibilitiesISSUING AUTHORITY Ensure proper IsolationsMake the job safe, specify the residual hazards & precautions.Determine scope, effect - Ensure plant conditions remain unchanged.Convey residual hazards & precautionsEnsure Cross referencing of Permits

RECEIVING AUTHORITYFully understand the job, residual hazards & precautions necessary to carry out the job..Compliance of scope Scope remains unchangedEnsure compliance by his team - ensure that requirements set forth in PTW are followed by all personnel under his controlUse Correct / Inspected Tools / tackles for the job

PTW Where Required ??Permit to WorkAll Jobs Valid for 7 days (Max) Extendable upto 7 days (optional feature, as per situation)Hot Work PermitAll welding / cutting / grinding / drilling jobs Valid for 24 hrs (Max)Vessel Entry PermitAll confined spaces entry (1 meter depth, Hazardous fumes, oxygen deficiency) Not normal operating area Valid for 24 hrsExcavation PermitAll excavations, break-ins. Valid till any declared date.Scaffolding PermitAll scaffoldings. Valid till scaffolding exists

Permit To Work CharacteristicsAgreed workInformation for all concernedIdentified equipment / jobSpecified PrecautionsAll foreseeable Hazards identifiedFormal hand over of control of AuthorityDiscussion between Issuing & Receiving authorities

PTW RequirementsWork is not a modificationJoint site visit - MandatoryClear definition of the workStated precaution are complied withRevalidation within one hourPermit validity 7 days (Max)Issuance through signing-off Change of intent - New permitJob completion / Final Check - Area OperatorDe-isolation - Sequence

Lockout / Tag outControl of Hazardous EnergyElectricalMechanicalThermalPressureChemicalKinetic / Gravity

Prevention of injuries caused by release of Hazardous Energy

LockoutLock device applied to energy control point

A positive means to secure isolation point

Individual responsible for own lock & key

Preferred method

TagoutTag device applied to energy control point

Used in conjunction with Lockout

Used when Lockout not feasible

Name, date, time, purpose, etc.

Performing Lockout/TagoutPreparation Identify the energy source(s)Determine how to control the energyDissipate residual energyBlock components subject to movement

Shutdown EquipmentFollow normal stopping proceduresAllow motion to stop

Applying Lockout/TagoutClose or shut off all energy sources

Apply locks and/or tags

Verify isolation - TryTry the switchTry the start button

Contractors may need assistance or procedures to identify all energy sources

Removing Lockout/TagoutRemove tools and equipment

Replace guards and covers

Check for all clear

Remove your locks and tags

Other locks & tags may remain

Notify responsible party of completion

Hot Permit RequirementsAll combustibles to be removedSpatters to be controlledArea to be cordoned off and person to monitorFlammable atmosphere LEL testIn case of risk arrange fire watchValidated and tested welderWelding plant and cables conditionUse ELCB for grinder etc inside vesselSpecial care while working on fiberglass, cold sticker etc.

Vessel Entry Permit (Confined Space Entry)DefinitionLimited means of entry or exitNot intended for human occupancyMay / could contain a hazardous atmosphereContains engulfment or entrapment hazardsContains other hazards

Tanks, vessels, storage hoppers, pipelines, manholes, tankers, bins, excavations, etc.

Atmospheric HazardsOxygen Deficiency / Enrichment - below 19.5% or above 23.5%

Flammable / Explosive - LEL above 5%

Toxic - above PEL, unknown, or IDLH

Control with testing, ventilation, and/or PPE

Confined Space PermitsFacility issued

Contractor issued

Supervisor prepares

Sign In / Out

Atmospheric testing

Hazard controls

Renew when expired

Other HazardsHazardous Energy - Lockout / Tag out

Electrical, Thermal, Mechanical, Pressure, Chemical

Entrapment - plan for avoidance and retrieval

Engulfment - plan for avoidance and retrieval

Rescue - plan for retrieval, must have Attendant and communications

Entrants, Attendants and SupervisorsEntrantsEnter the spacePerform the workExit on Attendants ordersSupervisorPerform air monitoringControl other hazardsComplete permitAttendantsBe present continuouslyMaintain headcountMaintain contact with entrantsOrders evacuation, activates rescuePrevent unauthorized entry

Confined Space VentilationPositive - blowing air into the space, exhaust is through openings

Negative - pulling air out of the space, exhaust is through blower

Explosion-proof equipment if needed

Purging / Inserting - inert gas (nitrogen, carbon dioxide, argon) used to replace oxygen atmosphere in space for HOT work

Special Equipment - Confined Space EntryFull Body Harness often requiredLifeline (Retrieval Line)Mechanical Retrieval System - required for vertical entries exceeding five (5) feetFall Protection AnchorageTesting metersOxygenCombustible gasToxic chemicals

Scaffolding PermitErected by Competent Person

Sound, rigid footing

No overloading

Scaffold Grade Planking

Railings / toe boardsTie-Off if no railing

Access ladders

Get down from rolling scaffold to move it

No portable ladders on scaffolding

Fitness certificate in place

For further explanation regarding isolation of plant & equipment from hazardous materials refer to construction/shut down safety module