HOT WORK - PowerPoint Presentation

Slide1

HOT WORK PROCEDURES & PERMITIntrepid Policy

Key-ActionsWill work generate a flame or sparkRemove flammable and combustibles if possibleEnsure that charged flammable gas lines and vessels not within 35’Use FM approved welding blankets or metal shieldsCover/protect all floor & wall openingsPlan includes fire watch and monitoringAt least one 20# Fire Extinguisher & PPEObtain permit from proper authorityCheck for fire continuously and for 60-minutes after (30 alt.)Monitor area for 3-hours (exceptions for affirmative measures)

Revised 04/2014Slide2

HOT WORK PROCEDURES & PERMITIntrepid Policy

Hot WorkHot work is any temporary or permanent operation that involves open flames or produces heat and/or sparks. This includes, but is not limited to, brazing, cutting, grinding, soldering, torch-applied roofing, and welding. The definition of hot work can be applied to activities within a facility, such as normal production processes, periodic/planned maintenance activities, new construction work, and emergency repairs. Hot Work PermitSpecial permit issued by an authorized authorityRevised 04/2014Slide3

HOT WORK PROCEDURES & PERMITIntrepid Policy

Alternative MethodsAlternative “cold work” methods include: Mechanically removing and relocating frozen piping to a heated area rather than thawing piping in place with any form of hot work Using manual hydraulic shears rather than a cut-off saw or torch Using mechanical bolting rather than welding Using screwed or flanged pipe rather than sweat soldering

Using a reciprocating saw rather than a cut-off or radial saw Using a mechanical pipe cutter rather than a torch or radial saw

Revised 04/2014Slide4

HOT WORK PROCEDURES & PERMITIntrepid Policy

ProhibitionsHot work is prohibited where it cannot be conducted safely. However, hot work may proceed under the provisions of a specific written plan (authorized at the Superintendent level) designed to eliminate or mitigate the prohibitive conditions. ExamplesEquipment lined with rubber or other combustible materialsOxygen-enriched atmospheresAtmosphere containing flammable gasses or mists.Hot work on tanks or vessels containing flammable or combustible liquids

Revised 04/2014

Equipment lined with rubber or other combustible materials shall be effectively identified by appropriate signage, markings, notices or tags. Slide5

HOT WORK PROCEDURES & PERMITIntrepid Policy

PermitsPermits are issued for a specific job being done, and for a specific time period. The time period may extend for the full working shift and under rare circumstances, multiple shifts. Normally if job is not completed by shift-change a new permit will be issued and the old permit will be replaced and retained. A master log of current hot work activity and post-hot work fire watch and monitoring will be maintained at each facility. Each hot work permit tag displays a unique identification number that can be referenced on the master log. Revised 04/2014Slide6

HOT WORK PROCEDURES & PERMITIntrepid Policy

AuthorizationGeneral Manager (or designee)Fuel tanks, oil tanks, containmentsCorrosive liquid storage tanksWithin 100’ of explosives magazineRequires special planning (otherwise prohibited)Operations ManagerUnderground fans, active ventilation devicesIn or above

any air shaftHoisting equipment, cranes and associated structuresHot work on live

lines, tanks, gas

lines

Un-engineered/unscheduled hot work affecting the integrity of any structural component

All Certified welding jobs

Superintendent

Hot work on Critical

Flow Systems

Outside normal working areas (cattle

guards, fence gates, off site vehicle repair)

Hot work on or in buildings constructed with combustible materials.

Supervisor

All others

Revised 04/2014Slide7

HOT WORK PROCEDURES & PERMITIntrepid Policy

AuthorizationBased on the discretion of the authorizer, voice authorization of a hot work permit may be issued for hot work to be performed at remote locations. The permit must show the name of the authorizer and all required hot work safeguards must be implemented and documented on the permit. The authorizer must sign the permit before filing.Revised 04/2014Slide8

HOT WORK PROCEDURES & PERMITIntrepid Policy

Designated Safe Hot Work AreasA Designated Safe Hot Work area is an area that has been designed and constructed to perform open flame or spark producing work with adequate ventilation. The Safety Manager and Operations Manager will determine if a given area qualifies as a designated safe hot work area. Permanent designated safe hot work areas will be identified by signage or other demarcation. Temporary designated safe hot work areas will be posted. These areas must continuously be free of combustible and flammable materials within 35’ of the work. All underground hot work not performed in designated shops must be permitted.Revised 04/2014Slide9

HOT WORK PROCEDURES & PERMITIntrepid Policy

Enclosed Tanks and VesselsAny time hot work is performed on any enclosed tank, or vessel that contains or previously contained flammable or combustible liquids precautions shall be taken to prevent the ignition of the liquids and/or vapors that may be generated within the containment during the hot work procedure. Such precautions may include, but are not limited to purging the containment with water or inert gas and must be documented on a Hot Work Permit. Revised 04/2014Slide10

HOT WORK PROCEDURES & PERMITIntrepid Policy

Hot Work Distance RestrictionsFlammable liquids and combustible material removed from area (35’).Work area clean from combustible or flammable dust, lint and debris (35’).FM approved welding blankets and metal shields provided as needed (35’). All floor and wall openings (regardless of size) covered and/or protected, walls/ceilings: remove combustibles away from opposite side adjacent structures (35’).Underground, flammable gas tests shall be conducted in the affected area before initiating hot work, and at periodic intervals during the work. Surface or underground, such flammable gas tests shall be conducted whenever hot work is to be performed within 50’ of active gas lines.Hot work shall not be performed within 50’ of any explosives, blasting agent, active magazine or where explosives or blasting agents are being transported.

Outdoor hot work shall not be performed in any area affected by wind currents in excess of 25 mph unless flammable and combustible materials are removed or protected in all directions for at least 50’ and/or other affirmative protective actions are taken.

Revised 04/2014Slide11

HOT WORK PROCEDURES & PERMITIntrepid Policy

Protection of Areas NearbyAffirmative measures to prevent ignition (Paragraph L)Areas below the hot work site—flammable and/or combustible materials belowFloor openingsOpen gratingPipe and conduit openingsEquipment openingsWall openings—flammable and/or combustible materials within the walls or adjacent areasGratingPipe and conduit openings

Equipment openingsVents

Revised 04/2014Slide12

HOT WORK PROCEDURES & PERMITIntrepid Policy

Fire Watch and MonitoringFire WatchDuring Hot WorkDuring any break in activityAt least 60-minutes after completing the hot workMay be passed on to another qualified personMay be reduced to 30-minutes if affirmative measures are employedMonitoring PeriodImmediately following the post-hot work fire watch.Monitor for at least 3-hours

May be passed on to another qualified personMay be waved or modified if approved on the permitDoes not require direct or constant attendance—monitoring equipment may be used

Fire Watch & Monitoring

Assigned person equipped with at least one 20# multipurpose fire extinguisher or approved alternative

Assigned person trained on use of firefighting equipment, sounding alarm, and familiar with hot work procedures and safeguards.

Revised 04/2014Slide13

HOT WORK PROCEDURES & PERMITIntrepid Policy

Examples of Affirmative Measures to Prevent FireRemoval of all flammable and combustible materials within 35-feet in all directionsAssignment of additional fire watch coverage during and after the hot work period.Maintain Effective barriersKeep combustible materials wet to prevent ignitionSite Specific Factors that may Contribute to Modification of the Fire Watch Duration or Monitoring Period DurationNon-combustible construction materials

Non-combustible equipment and structures (pipes, tanks, etc.)Wet floorsType of work performed (soldering vs. welding for example)

Revised 04/2014Slide14

HOT WORK PROCEDURES & PERMITIntrepid Policy

PPEEye and Face Protection welding, flame cutting, flame solderingInclude helpersFlame resistant gloves, aprons, other flame protective clothingwelding, flame cutting, flame solderingANSI rated hard had where requiredFM Approved welding curtains vertical containment barriers FM Approved welding curtains or other effective barriers to protect personnel from radiation

Safety ShoesOther PPE required for the setting

Revised 04/2014Slide15

HOT WORK PROCEDURES & PERMITIntrepid Policy

Permit Copies and RetentionPrepare permit in advance of the job.Display a copy at the work area or carry with the worker until the job, fire watch, and monitoring period are completePermit with signatures will be filed with the Safety Office and maintained for at least 1-year after completion of all tasks associated with the permit.TrainingTraining and refresher training as necessary for all employees affected by this policy including:Those who perform hot work

Fire watch and monitoring personnelPersonnel responsible for authorizing hot workAudit

Safety Manager will audit compliance with this policy and report to the General Manager.

Revised 04/2014Slide16
Slide17
Slide18