ONLINE self-study

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ONLINE self-study

• UNC Hot Work Permit Program Safety Training

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Course Objectives

• 1) Be able to identify the general hazards
  associated with Hot Work Activities
• 2) Be able to explain the procedures involved
  in the
• UNC Hot Work Permitting System.
• Be able to explain the roles of personnel for the
  Hot Work Permit System including the Hot Work
  Operator, Permit Authorizing Individual, and the
  Fire Watch.

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Course Objectives
4) Be able to explain the difference between a
designated hot work area, a controlled hot work
area, and an area where hot work is not permitted
under any circumstances. 5) Understand
Contractor Responsibilities, Mutual
Responsibility, and the importance of individual
initiative to halt work operations when workplace
conditions develop that could pose a hazard.
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Hot Work Definitions

• Hot Work Definitions

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Hot Work Definitions

• Hot Work
• Defined as work involving burning, welding,
  or similar operation that is capable of
  initiating fires or explosions.
• Hot work also includes other activities with the
  potential to create a source of ignition such as
  cutting, brazing, grinding, soldering, or hot
  riveting.
• The OSHA hot work standard 29 CFR 1910.251-257,
  defines practices that should be implemented
  during the performance of hot work. This
  standard covers the safety requirements of the
  different types of welding processes. In
  addition, refer to the UNC-CH IMAC Safety Manual
  for Welding and Cutting Safety Policy
  Requirements.

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Hot Work Definitions

• Hot Work
• Hot work also includes other activities with
  the potential to create a source of ignition and
  process applications that produce sparks, flame,
  or heat.
• Hot work is a familiar routine activity at
  most industrial facilities. But because hot work
  tools are highly portable source of ignition,
  improperly conducted hot work is a major cause of
  fires and explosions which have resulted in
  extensive property damage, serious personnel
  injury, and worker deaths.

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Hot Work Definitions

• Hot Work Operator is the Departmental
  employee who is qualified and authorized by
  management to perform hot work such as welding,
  brazing, soldering, and other associated work
  tasks.

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Hot Work Definitions

• Permit Authorizing Individual (PAI) is the
  Departmental employee who is trained and
  authorized to issue a hot work permit by
  management.
• The Fire Watch is the Department employee who is
  trained in hot work safety and monitors the hot
  work area for changing conditions, watches for
  fires and extinguishes them if possible.

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Hot Work Definitions

• Designated Area is a permanent location
  approved for routine hot work operations made
  safe by removal of all possible sources of
  combustion that could be ignited by the hot work
  tool.
• Above Illustrations of two Designated Areas at
  one of the UNC Energy Services Maintenance Shops.
  Combustible materials have been removed to make
  this a safe location to perform welding
  operations.

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Hot Work Definitions

• Controlled Area is a work area in which safe
  conditions for hot work exist or where safe
  conditions can be created by moving or protecting
  combustibles.
• A hot work permit is required in a controlled
  area.
• An example of a controlled area is in a campus
  building construction area where welding must
  take place and the work area has been made safe
  by removing all combustibles and implementing the
  requirements of the hot work permit in order to
  make it safe.

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Hot Work Definitions

• Non- Permissible
• Area(s)/Location
• is a location which hot work is
• prohibited.
• Fires and explosions
• caused by improperly conducted hot
• work can have deadly consequences.
• In the last decade their have been
• numerous worker injuries and deaths
• in general industry that have resulted
• from not following proper hot
• work procedures.

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Hot Work Definitions

• Welding Blanket is a heat-resistant fabric
  designed to be placed in the vicinity of a hot
  work operation. Intended for use in horizontal
  applications with light to moderate exposures
  such as that resulting from chipping, grinding,
  heat treating, sand blasting, and light
  horizontal welding. Designed to protect
  machinery and prevent ignition of combustibles
  such as wood that are located adjacent to the
  underside of the blanket. They are made from
  different materials such as fiberglass, Silica,
  and other fire resistant materials.

Above Illustration Courtesy of Northern Tool
Equipment Company
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Hot Work Definitions

• Welding Curtain is heat-resistant fabric
  designed to be placed in the vicinity of a hot
  work operation. Intended for use in vertical
  application with light to moderate exposures such
  as that resulting from chipping, grinding, heat
  treating, and light horizontal welding. Designed
  to prevent sparks from escaping a welding area.
  An illustration of a welding curtain is provided
  below.

Above Illustration Courtesy of UNC Energy
Services CoGeneration Facility Maintenance Shop
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Hot Work Definitions

• Welding Pads are heat-resistant fabric
  designed to be placed directly under a hot work
  operation such as welding or cutting. Welding
  pads are intended for use horizontal applications
  with severe exposures such as that resulting from
  molten substances of heavy horizontal welding.
  Welding pads are designed to prevent the ignition
  of combustibles that are located adjacent to the
  underside of the pad.

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Hot Work Hazards

• Hot Work Hazards

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Hot Work Hazards

• Fire Hazard Molten metal, sparks, slag, and
  hot work
• surfaces can cause fire or explosion if
  precautionary
• measures are not followed.

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Hot Work Hazards

• Flying sparks are the main cause of fires and
  explosions in welding and cutting. Sparks can
  travel up to 35 feet from the work area. Sparks
  and molten metal can travel greater distances
  when falling.
• Sparks can pass through or become lodged in
  cracks, clothing, pipe holes, and other small
  openings in floors, walls, or partitions which
  can cause fires to start.

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Hot Work Hazards

• Combustible Materials are anything that is
  combustible or flammable and is susceptible to
  ignition by cutting and welding. The most common
  materials likely to become involved in fire are
  those of combustible building construction such
  as the following
• Floors, partitions, and roofs
• Wood, paper, textiles, plastics, chemicals, and
  flammable liquids and gases, and dusts.
• Ground cover such as grass and brush.

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Hot Work Hazards

• Explosion Hazard
• Welding and cutting can cause explosions in
  spaces containing flammable gases, vapors,
  liquids, or combustible dusts, and tanks and
  vessels that contain or have held flammable
  substances.
• Above Courtesy U.S. CSB, Tanks involved in the
  2006 accident that killed three workers

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Hot Work Hazards

• Physical and Health Hazards
• There are many hazards to the hot work
  operator (i.e. welder) associated with hot work
  such as
• Burns,
• Sparks,
• Electric shock hazards,
• Optical (UV) radiation,
• Inhalation of welding fumes.
• Engineering controls, personal protective
  equipment, and safe work practices safeguards the
  welder from many physical and health hazards.
  

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Hot Work Hazards

• Can you Identify Some of the Hazards in the
  following Illustrations?

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Hot Work Hazards

• What Hazards Exist in the below illustrations?
  

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Hot Work Hazards

• What Hazards Exist?
• Eye hazards (UV optical radiation and burn
  hazards) to the eyes.
• Skin burn hazards from the welder and hot
  surfaces.
• Electrical hazards (for above electric welding
  processes) notice that the work area is dry and
  free from water and moisture at the welding work
  area.
• Slip, Trip, and Fall hazards from welding hoses
  and shop equipment.
• Inhalation (respiratory) hazards of welding fumes
  and smoke generated from welding processes when
  inadequate ventilation is used as illustrated in
  the top left picture. Notice that in the right
  picture there is less welding smoke.

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Hot Work Hazards

• What Hazards Exist in the below illustration?

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Hot Work Hazards

• What hazards exist?
• Eye hazards Impact hazards from flying chips and
  debris, hot slag, and sparks.
• Inhalation (respiratory) hazards of dusts
  generated when grinding on metal surface
  coatings.
• Fire Ignition Hazard(s) from flying sparks that
  could ignite combustible materials in the work
  area. Sparks can travel up to 35 and ignite
  combustible materials.

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Hot Work Hazards Summary

• Hot work can be dangerous because the tools
  used are highly portable sources of ignition that
  can be introduced into areas where ignition
  sources do not usually exist.
• Sparks, flame, or heat can travel great distances
  by various means and ignite combustibles in other
  areas far away from the hot work.
• There are also explosion, fire, and physical and
  health hazards associated with hot work as
  previously reviewed.
• The goal of hot work safety practices is to avoid
  bringing sparks, flame, or heat produced by the
  tool into contact with a source of fuel.

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• Hot Work Permit Program Requirements
• Hot Work Locations

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Hot Work Permit Program Requirements- Hot Work
Locations

• Hot work is allowed in two types of locations
• Designated area is a permanent location approved
  for routine hot work operations made safe by
  removal of all possible sources of ignition that
  could be ignited by the hot work tool.
• Controlled Area is one in which safe conditions
  for hot work exist or where safe conditions can
  be created by moving or protecting combustibles.
• Non permissible location Hot work is never
  permitted in certain types of locations where
  safe conditions do not exist and cannot be
  created.

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Hot Work Permit Program Requirements- Hot Work
Locations

• Designated Area is a permanent location
  approved for routine hot work operations made
  safe by removal of all possible sources of
  combustion that could be ignited by the hot work
  tool.
• Above Illustrations of two Designated Areas at
  one of the UNC Energy Services Maintenance Shops.
  Combustible materials have been removed to make
  this a safe location to perform welding.

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Hot Work Permit Program Requirements- Hot Work
Locations

• Designated Area
• An example, is the Welding Shop or Maintenance
  Shop (as illustrated below) where all
  combustibles have been removed.
• A Hot Work Permit is not required in a Designated
  Hot Work Area.
• Above Illustration of UNC Art Lab Welding
  Area, which is considered a Designated Area. A
  hot work permit is not required in a Designated
  Hot Work Area.

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Hot Work Permit Program Requirements- Hot Work
Locations

• Controlled Area is one in which safe conditions
  for hot work exist or where safe conditions can
  be created by moving or protecting combustibles.
• An example of a controlled area is in a campus
  building construction area where welding must
  take place and the work area has been made safe
  by removing all combustibles and implementing the
  requirements of the hot work permit in order to
  make it safe.

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Hot Work Permit Program Requirements- Hot Work
Locations

• In a Controlled Area, a Hot Work Permit must
  be obtained by the hot work operator. The permit
  must be obtained from the Departmental designated
  Permit Authorizing Individual (PAI) before the
  hot work can proceed in a controlled area.
• The permit includes a checklist of
  precautions, each of which must be considered
  and then implemented if the PAI determines that
  is applicable to the specific situation, such as
  ensuring fire protection equipment is available
  in the work area, controlling potential and
  existing fuel sources, and posting a fire watch
  when required.

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Hot Work Permit Program Requirements- Hot Work
Locations

• Non- Permissible Area(s)/Location Hot work
  shall not
• be permitted in the following areas
• In areas not authorized by Management.
• In sprinklered buildings where sprinklers are
  impaired.
• In the presence of explosive atmospheres (i.e.,
  where mixtures of flammable gases, vapors,
  liquids, or dust with air exist).
• In the presence of uncleaned or improperly
  prepared equipment, drums, tanks, or other
  containers that have previously contained
  flammable materials that could develop explosive
  atmospheres.
• In areas with an accumulation of combustible
  dusts that could develop explosive atmospheres.

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Hot Work Permit Program Requirements

• Hot work is prohibited
• In, on, or near tanks, vessels, or containers
  that contain or have contained flammable
  substances.

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Hot Work Permit Program Requirements- Hot Work
Location Examples

• Non- Permissible Area(s)/Location Examples
• Fuel/ Fuel Oil Storage Tanks
• Hot work is not allowed in, on, or near
  fuel and fuel oil storage tanks such as
  illustrated below

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Hot Work Permit Program Requirements- Hot Work
Location Examples

• Non- Permissible Area(s)/Location Examples
• Fuel/ Fuel Oil Storage Tanks
• Hot work is not allowed in, on, or near
  fuel and fuel oil storage tanks such as
  illustrated below

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Hot Work Permit Program Requirements- Hot Work
Location Examples

• Non- Permissible Area(s)/Location Examples
• Fuel/ Fuel Oil Storage Tanks
• Hot work is not allowed in, on, or near
  fuel and fuel oil storage tanks such as
  illustrated below

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Hot Work Permit Program Requirements- Hot Work
Location Examples

• Non- Permissible Area(s)/Location Examples

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Hot Work Permit Program Requirements

• Non- Permissible Area(s)/Location Examples
• For hot work in the vicinity of any
  potential hazardous location, the atmosphere must
  be tested for atmospheric hazards including
  flammable gasses using a combustible gas
  indicator by a trained PAI or EHS before
  commencing hot work.
• Contact EHS at 962-5507 before commencing
  any hot work in a potentially hazardous location.
  

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• Hot Work Permit Program Requirements

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Hot Work Permit Program Requirements

• Analyze the Hazards- Prior to initiation of
  hot work, perform a hazard assessment that
  identifies
• The scope of the work,
• Potential hazards,
• Methods of hazard control.

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Hot Work Permit Program Requirements

• After analyzing the hazards, see if there
  is any possibility of Hot Work Alternatives. An
  alternative hot work method is termed Cold
  Work.
• 1) Can the job be completed with cold work?
  
• An example of cold work is performing
  repairs with another method
• instead of using a heat producing tool. If
  yes, a hot work permit is not required.
• 2) Can hot work be performed in a
  designated area (e.g. maintenance or welding
  shop). If yes, then a hot work permit is not
  required.
• 3) Is the proposed work to be performed in
  a non- permissible area?
• HOT WORK AND PERMIT ARE NOT AUTHORIZED
  in a non-permissible location.

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Hot Work Permit Program Requirements

• Here is an example of a decision flow that can be
  utilized
• to help determine if a hot work permit is needed
  or not.

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Hot Work Permit Program Requirements

• YES
• NO
• YES
• NO
• YES YES YES
• NO
• YES
• NO

1. Is there an acceptable alternative to hot
work??
Yes, Complete job with Cold Work. No hot work
permit is needed.?
Yes, Examine designated area, then complete hot
work there. No hot work permit is needed.?
2. Can hot work be performed in a designated
area (e.g. Maintenance Shop)?
Yes, Obtain a written hot work permit.?
3. Is the proposed work to be performed in a
non-designated area (e.g. NOT in a Maintenance
Shop)??
YES, Hot Work and Permit are Not Authorized in a
non-permissible area
4. Is the proposed work to be performed in a
non-permissible area?
No, Obtain a written hot work permit to work in a
Controlled Area.
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Hot Work Permit Program Requirements

• If it is decided that a hot work permit is
  required for a job task, the Hot Work Permit must
  be obtained by the hot work operator from the
  Permit Authorizing Individual (PAI).
• The PAI is designated by management before the
  hot work can proceed in a controlled area.

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Hot Work Permit Program Requirements

• The Hot Work Permit includes a checklist of
  precautions, each of which must be considered and
  then implemented if the PAI determines that it is
  applicable to the specific situation.

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Hot Work Permit Program Requirements

• UNC Hot Work Permit Click on the below Hot
  Work Permit

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Hot Work Permit Program Requirements

• Fire Protection Equipment All required fire
  protection, detection, and extinguishing
  equipment must be available, in service, and
  fully operable.
• Examples of equipment that needs to be
  considered include
• Fire extinguishers
• Fire Sprinklers,
• Hose stream, pales of water available?
• Proximity to the fire alarm.

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Hot Work Permit Program Requirements

• Fuel sources fuel sources within 35 from
  hot work are easily ignited, so within this area
• Combustible materials must be removed or
  shielded.
• The floor must be swept clean of combustible
  materials.
• The absence of hazardous atmospheres and/or
  flammable materials must be verified, steps must
  be taken to ensure that none are introduced, and
  adequate ventilation must be assured.
• Combustible floors must be covered with damp sand
  or fire resistant sheets.

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Hot Work Permit Program Requirements

• Fuel sources (contd) fuel sources within
  35 from hot work are easily ignited, so within
  this area
• Openings or cracks in walls, floors, or ducts
  through which sparks might travel and ignite
  combustibles in other locations must be covered.
  Conveyer systems must be shut down.
• Fire resistant tarps must be suspended beneath
  overhead work.
• If hot work is done on one side of a wall,
  partition, ceiling, or roof, precautions shall be
  taken to prevent ignition of combustibles on the
  other side by relocating the combustibles.

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Hot Work Permit Program Requirements

• Fuel sources (contd) If relocation is
  impractical, combustibles shall be protected by a
  approved welding curtain, welding blanket,
  welding pad, or equivalent rated ANSI/FM 4950.
• The above illustration is of a welding curtain
  used to prevent sparks from traveling to adjacent
  work areas.

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Hot Work Permit Program Requirements

• Fuel sources (contd)
• If it is impractical to relocate combustibles, a
• Fire Watch must be provided on the side
  opposite from where work is being performed.

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Hot Work Permit Program Requirements

• A Fire Watch is needed when there is a
  chance that fire might develop from combustible
  materials. A fire watch is needed if combustible
  materials are located
• 1) Closer than 35 from the hot work.
• 2) More than 35 away from the hot work
  but might be easily ignited by sparks.
• 3) Walls or floor openings within 35
  expose combustible materials in adjacent areas
  including concealed areas spaces in walls and
  floors.
• 4) Adjacent to the opposite side of
  partitions, walls, ceilings, or roofs.

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Hot Work Permit Program Requirements

• The Fire Watch monitors the hot work area
  for changing conditions and watches for fires,
  and extinguishes them if possible. The Fire
  Watch shall be familiar with the facilities and
  procedures for sounding the fire alarm and
  contacting the Fire Department in the event of an
  emergency.
• Note When changing conditions are observed by
  anyone whether the fire watch, hot work
  operator, PAI, or any other employee that person
  should immediately halt the hot work on his or
  her own initiative!!

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Hot Work Permit Program Requirements

• Remember, Fire Watches must
• Have fire extinguishing equipment readily
  available and be trained in its use.
• Be familiar with facilities for sounding an alarm
  and contacting the Fire Department in the event
  of a fire.
• Watch for fires in all exposed areas.
• Try to extinguish fires only when obviously
  within the capability of equipment available, or
  otherwise sound the alarm.
• Be maintained for at least a half-hour after
  completion of welding or cutting operations to
  detect and extinguish possible smoldering fires.

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Hot Work Permit Program Requirements

• Contractor Responsibilities
• The designated departmental PAI should
  supervise outside contractors that are planning
  to engage in hot work activities.
• The departmental PAI informs contractors
  about site-specific hazards including the
  presence of flammable materials at the work site.

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Hot Work Permit Program Requirements

• Mutual Responsibility Management,
  contractors, the PAI, the fire watch, and the hot
  work operators shall recognize their mutual
  responsibility for safety in hot work operations.
  

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Hot Work Permit Program Requirements

• Individual Employee Responsibilities
• Any employee that observes changing unsafe
  condition associated with hot work activities
  must use individual initiative to report the
  unsafe condition(s).
• Each employee has the right to halt hot work
  operations when new conditions develop that could
  pose a hazard to employees.
• An example of changing conditions might be the
  introduction of a flammable substance into the
  hot work area.

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• Hot Work Accident Case Studies

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Hot Work Accident Case Studies

• Case Study 1 Welding and cutting can cause
  explosions in spaces containing flammable gases,
  vapors, liquids, or combustible dusts, and tanks
  and vessels that contain or have held flammable
  substances.
• Above Courtesy U.S. CSB, Tanks involved in the
  2006 accident that killed three workers

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Hot Work Accident Case Studies

• Case Study 1 Explosion
• Previous Slide Photo Below Information,
  Courtesy U.S. CSB,
• Tanks involved in the 2006 accident that killed
  three workers . On June 5, 2006, contract
  workers were installing a new pipe between two
  oil tanks at a rural oilfield when sparks from a
  welding torch ignited flammable hydrocarbon vapor
  venting from one of the tanks. That tank and
  another nearby tank exploded, killing three
  workers who were standing above the tanks and
  seriously injuring a fourth. All of the tanks
  were interconnected by piping and one of the
  tanks contained crude oil, the source of the
  vapor that fueled the explosions. The workers
  had not performed combustible gas monitoring
  prior to or during the hot work instead relying
  on the unsafe and unreliable practice of using a
  lit torch to check one of the tanks for flammable
  vapor.
• Workers did not empty or isolate the tank that
  contained crude oil prior to initiating hot work
  activities.
• Neither the contract company nor the parent
  company required written hot work permits. The
  contractor company did not provide hot work
  safety training to employees.

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Hot Work Permit Program Case Studies

• Case Study 2 Explosion Below Information
  and Photo, Courtesy U.S. CSB,
• A.V. Thomas Produce
• Atwater, California, March 31, 2009
• 2 Workers Severely Burned
• Two employees at A.V. Thomas Produce were using
  an oxygen-acetylene torch to loosen a fitting on
  an old fuel tank, which the company hoped to
  refurbish for field storage of diesel fuel. The
  workers, however, were unaware that the tank
  contained residual hydrocarbon liquid and vapor
  from an unknown prior use. The tank was not
  cleaned or purged before work began. Shortly
  after applying heat to the tank, an explosion
  occurred, blowing the end of the vessel off. Both
  employees were airlifted to a regional burn
  center, where they were treated for burns
  covering 30 to 50 of their bodies.
• The facility had no formal hot work program, and
  no permit was issued for the hot work being
  performed. No combustible gas testing was
  performed prior to commencement of the hot work
  the company did not have a policy that required
  it. In addition, many workers were mono-lingual
  Spanish speakers and had not been trained on safe
  hot work procedures or on the proper use of gas
  detectors in their native language.

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Hot Work Accident Case Studies

• Case Study 2 Explosion
• Below Photo, Courtesy U.S. CSB,

Exterior and interior views of the fuel tank
involved in the hot work accident at A.V. Thomas
Produce.
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Hot Work Accident Case Studies

• Case Study 3 Explosion
• Below Information and Photo, Courtesy U.S.
  CSB,
• Bethune Point Wastewater Plant
• Daytona Beach, Florida, January 11, 2006
• 2 Workers Killed, 1 Critically Injured
• Two workers were killed and another critically
  injured in an explosion involving a methanol
  storage tank at a municipal wastewater treatment
  facility in Daytona Beach, Florida. The explosion
  occurred while the three workers were cutting a
  metal roof located directly above the tank vent.
  Sparks showered from the cutting torch and
  ignited methanol vapor escaping from the vent,
  creating a fireball on top of the tank. A
  corroded and ineffective flame arrester15 on the
  vent allowed the fire to propagate through the
  device, igniting methanol vapors and air inside
  the tank, resulting in an explosion.
• Daytona Beach public employees were not covered
  by OSHA standards, which is typical for local and
  state governments in a number of jurisdictions.
  The city had no formal permitting system for hot
  work or non-routine maintenance activities, and
  workers had not received any training on methanol
  hazards in the previous 10 years. Combustible gas
  monitoring was not performed or required.

65
Hot Work Accident Case Studies

• Case Study 4 Fire at a University Library
• Courtesy (NFPA 51B standard - Significant Hot
  Work Incidents)
• University Library. Workers were using an
  acetylene torch to remove old heating ducts in a
  utility shaft between the 20th and 21st stories
  of the tower of a 27-story university library
  building. Flying sparks fell through a vent and
  ignited papers stacked against the vent in a
  storage room on the 20th floor. Apparently the
  fire burned 20 to 30 minutes before discovery.
• There was no fire protection in the upper
  stories, except for portable fire extinguishers,
  and fire fighters had to connect to the
  standpipes in the 3rd and 4th stories and pull
  hose lines up the enclosed stairways to the 20th
  and 21st stories. They finally controlled the
  fire in 2.5 hrs, but damage extended to 4 stories
  when fire spread by way of nonfirestopped utility
  shafts and elevator shafts. The work was being
  done by two air-conditioning installation
  workers, on contract. They had not investigated
  the possibility of combustible material being in
  contact with the old heating duct on which they
  were working.

66
Hot Work Accident Case Studies

• Case Study 5 Fire in Warehouse Facility
• Courtesy (NFPA 51B standard - Significant Hot
  Work Incidents)
• Warehouse Facility. While an arc welder was
  being used on the second floor, sparks dropped
  through an opening to cardboard boxes below and
  the boxes ignited. There was no fire watch on
  the first floor, and when the fire was discovered
  15 minutes later, employees could not put it out.
  They finally called the fire department but were
  too late to save the two-story building of
  ordinary construction. The total loss was 1.6
  million.

67
Hot Work Accident Case Studies

• Case Study 6
• Lumber Mill. Workers had shut down one of
  several sprinkler systems in the plant to remove
  branch lines to facilitate removal of a conveyer.
  While workers were cutting bolts from the
  conveyer with welding equipment, some of the
  sparks passed through cracks in the floor and
  landed in sawdust accumulations below.
  Smoldering occurred for 3 hours without being
  noticed by the maintenance employees, who were
  the only people in the plant. Meanwhile, the
  area in the region of the cutting operations, but
  not the floor below, had been washed down and
  visited regularly at ½-hour intervals.
• When the fire was finally noticed, some time was
  spent in trying to extinguish it before the fire
  department was called. By the time the fire
  department arrived, it was too late to save the
  lumber storage and stacker buildings.
  Destruction caused a total loss of 1.25 million.
  

68

• Hot Work Permit Program Training Summary

69
Hot Work Permit Program Requirements- Summary

• In Summary
• Hot work activities creates various health and
  physical hazards. The goal of the hot work
  permit program is to prevent heat sources from
  coming into contact with fuel sources in order to
  prevent the possibility of fires and explosions
  that could result in injury, death, and loss of
  property.
• Hot work is allowed in 2 types of locations.
  Designated area is a permanent location (such as
  a Welding or Maintenance Shop) approved for
  routine hot work operations. A Designated area
  has been made safe by removal of all possible
  ignition sources.
• A Controlled Area is an out of shop location
  which safe conditions exist or where safe
  conditions can be created by moving or protecting
  combustibles.
• A Hot Work Operator must obtain a Hot Work Permit
  from the Departmental Permit Authorizing
  Individual before performing hot work in a
  Controlled Area.
• A Fire Watch must be posted when hot work is
  performed in a location where other than a minor
  fire might develop.
• A Non-Permissible Location is a hazardous
  location such as a tank that holds flammable
  chemicals. No Hot Work is allowed in this type
  of work environment.
• It is critical that proper planning and
  communication be implemented by all involved in
  planning work involving hot work to reduce the
  possibility of injury, death, and property loss.

70
Conclusion

• In conclusion, everyone involved with hot work
  needs to understand and follow proper safety
  procedures to prevent accidents associated with
  hot work activities.

71
References Used and Additional Hot Work
Information

• References
• National Fire Protection Agency 51B, Standard
  for Fire Prevention during Welding, Cutting and
  Other Hot Work.
• American National Standards Institute, Standard
  Z49.12005, Safety in Welding, Cutting, and
  Allied Processes
• US Chemical Safety Board www.csb.gov
• American Welding Society, Safety and Health Fact
  Sheets
• OSHA General Industry Standard, Subpart Q,
  1910.251- 1910. 255, Welding, Cutting, and
  Brazing
• U.S. Army Corps of Engineers , Safety and Health
  Manual , Section 10 Welding and Cutting
• Washington State Department of Labor and
  Industries, Hexavalent Chromium (chrome 6)
  Training on the hazards of hexavalent chromium in
  the workplace
•