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Confined Space Training

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Leading cause of occupational fatalities in this country. The Standard ... Welding apron/sleeves. Respirators. Gloves. Safety glasses. Retrieval Equipment ... – PowerPoint PPT presentation

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Title: Confined Space Training


1
Confined Space Training
  • Permit-Required Confined Spaces

2
Confined Space Statistics
  • Leading cause of occupational fatalities in this
    country
  • The Standard covers 240,000 workplaces and 12.2
    million workers
  • Workers make 4.8 million entries/year
  • Standard may prevent 85 of fatalities and
    nearly 11,000 injuries

3
Definition of a Confined Space(must meet all
three criteria)?
  • Limited means for entry or exit (manholes, vaults
    pits)?
  • Large enough so configured that an employee can
    bodily enter and perform assigned work
  • Not designed for continuous
  • occupancy
  • Two types Permit Non-Permit Required Spaces

4
Definition of Permit-Required Confined Spaces
  • A confined space that has one or more of the
    following characteristics
  • Contains or has potential to contain a hazardous
    atmosphere
  • Potential for engulfment
  • Internal configuration that can trap or
    asphyxiate entrant
  • Any other serious safety or health hazards
    (electrical, hot work, drowning . . .)?

5
What is a Hazardous Atmosphere?
  • An atmosphere that may expose employees to the
    risk of death, incapacitation, impairment of
    ability to self-rescue or acute illness resulting
    from the following
  • Flammable gas, vapor or mist in excess of 10 of
    the LFL
  • Combustible dust at a concentration that is gt or
    LFL
  • Oxygen concentration lt 19.5 or gt 23.5
  • Any substance with concentration gt PEL
  • Any other atmospheric concentration that is IDLH

6
Permit-Required Spaces on Campus
  • Electrical vaults electrical hazards, low
    oxygen and/or asbestos
  • Sewer manholes CO, low oxygen
  • and/or toxic gases
  • Storm drain manholes
  • CO, low oxygen and/or toxic gases

7
Permit-Required Spaces on Campus (cont)?
  • Pool Pit lack of oxygen, toxic gases
  • and/or drowning
  • Sewer Tanks toxic gases, low oxygen,
  • drowning and/or electrocution hazards
  • Communication Vaults low
  • oxygen, asbestos
  • and/or electrical hazards

8
Non-Permit Required Spaces
  • Spaces that do not contain or, with respect to
    atmospheric hazards, have the potential to
    contain any hazard capable of causing death or
    serious physical harm
  • Utility closets
  • Below-grade trenches
  • Storage vaults
  • Utility subbasements

9
Confined Spaces on Campus
  • EHS, Environmental Services and Risk Management
    Department will jointly determine which types of
    spaces or specific spaces are defined as confined
    spaces.
  • All confined spaces on campus will be considered
    Permit Required until pre-entry procedures
    determine otherwise.
  • Only the Entry Supervisor is authorized to
    downgrade entry requirements.

10
Confined Space Entry Procedures
  • Space Evaluation
  • Alternate Entry Procedures
  • Permit-Required Entry Procedures

11
Space Evaluation
  • Refer to Flow Chart
  • Entry Supervisor must evaluate authorize an
    entry
  • This will determine if Alternate Entry or
    Permit-Required
  • If the space is reclassified as an Alternate
    Entry then the following conditions must exist
  • only hazard is the potential for a hazardous
    atmosphere and
  • potential hazard can be eliminated through
    continued forced
  • air ventilation and
  • previous current gas tests must show above two
    conditions are true

12
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13
Alternate Entry Procedures
  • Procedure that may be used to enter a confined
    space if the only hazard present in the space is
    atmospheric in nature and
  • The atmospheric hazard can be controlled by
    mechanical ventilation alone and
  • The permit space will not become immediately
    dangerous to life and health (IDLH) if the
    mechanical ventilation should fail.

14
Alternate Entry Procedures (cont)?
  • Entry Supervisor ensures space has been properly
    classified
  • Use guarding/cover/barrier to prevent
  • falls (when removing cover)
  • Lock out/tag out all hazardous
  • energy sources
  • Complete log
  • Test for O2, flammable gases/vapors and
  • potential toxic air contaminants
  • Set up ventilation (supply air taken from clean
    source)?
  • The Entrant will evacuate the confined space if
    he/she becomes aware of an unrecognized hazard

15
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16
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17
Permit Required Entry Procedures
  • Entry Supervisor, Entry Attendant and Entrant
    must participate
  • Inspect and setup safety equipment
  • Entry Supervisor establishes specific rescue
    procedures
  • Lock and tag out all hazardous sources of energy
  • Use guarding If removing an entrance cover
  • Sample and record air for hazardous contaminants
  • Entry Supervisor completes Permit prior to entry

18
Permit Required Entry Procedures (cont)?
  • Attendant verifies acceptable entry conditions
  • Entrant wears retrieval equipment during entire
    operation
  • Attendant continuously monitors atmosphere
    records readings with the portable gas detector
  • Immediately evacuate space if safety equipment
    fails or space becomes or has potential to become
    immediately hazardous
  • Upon completion, Entry Supervisor completes
    permit and files

19
Potential Confined Space Hazards
  • Engulfment
  • Oxygen deficiency (19.5 or less)?
  • Oxygen enrichment (23.5 or higher)?
  • Flammable gases or vapors
  • Combustible dusts
  • Toxic substances
  • IDLH atmospheres
  • Physical hazards

20
Monitoring Confined Space Air Quality
  • Prior to entering any confined space, prepare the
    gas detector
  • Conduct a bump test. Breathe into the gas
    detector probe and look for a decrease in oxygen
    concentration - should alarm
  • Sample air quality by slightly removing lid or
    through hole in lid before completely opening the
    space
  • Monitor with probe slowly at different vertical
    heights
  • Measure in the following order
  • Oxygen, LEL, H2S, CO
  • Record results on the Confined Space Entry Permit
    Record Sheet

21
Monitoring Confined Space Air Quality (cont.)?
  • The gas detector must be on during the ENTIRE
    entry operation
  • Will be regularly inspected by the Attendant.
  • Record gas readings at a minimum of one hour
    intervals
  • Cease entry operations and remove entry personnel
    if the following concentrations are exceeded at
    any time
  • Oxygen reading less than 19.5 or greater than
    22.5
  • Combustible gas reading greater than 9 LEL
  • H2S reading greater than 9 ppm
  • CO reading greater than 34 ppm

22
Ventilating a Confined Space
  • Set up one or more blowers to provide adequate
  • ventilation for the space. Ventilation must be
  • forced draft discharge of clean air into space
  • (not exhaust of space)?
  • Ensure ventilation air supply is from clean
    source
  • Allow enough time for blowers to clear the space
    before entering.
  • Ensure that the blowers remain on during the
    entire entry procedure. If the blower fails, the
    Entrant must leave the space immediately
  • Note this applies to both Permit Required and
    Alternate Entry procedures

23
Types of Personal Protective Equipment
  • Protective clothing
  • Welding apron/sleeves
  • Respirators
  • Gloves
  • Safety glasses

24
Retrieval Equipment
  • Rescue harness (chest or full body)?
  • Rescue tripod
  • Rope or cable (inspect for damage)?

25
Department Responsibilities
  • Risk Management Department Communication
    Services, Environmental Services and EHS
    Department
  • Establish update written program
  • provide training
  • review records provide consultation
  • Ensure all involved employees receive training
    follow procedures
  • provide and maintain equipment
  • maintain records

26
Entry Supervisor Responsibilities
  • Ensure all persons involved in a confined space
    entry are properly trained
  • Evaluate and classify the confined space prior to
    entry
  • Complete the Confined Space Entry Permit (if
    required)?
  • Ensure canceled permits are properly filed

27
Entrant Responsibilities
  • Completed Confined Space training
  • Must stay in constant contact with the Attendant
    (I.e. sight, voice or radio) during a Permit
    Required Confined Space entry
  • Use the appropriate safety equipment as specified
    on the Entry Permit

28
Entry Attendant Responsibilities
  • Completed Confined Space Training
  • Obtain install required safety equipment for
    Permit Required Confined Space entries
  • Monitor pedestrian barriers to protect entrant(s)
    from external hazards
  • Monitor the atmosphere during the entire entry
    operation
  • Must remain in position until relieved by another
    trained Attendant
  • Ensure all lockout/tagout measures (if
    implemented) remain in place
  • Responsible for ordering an evacuation if a
    situation develops that could endanger the Entrant

29
Rescuer Responsibilities
  • Understand the hazards of the space
  • All rescues attempted by CSUN personnel will be
    Non-Entry Rescues (i.e. rescuer will not enter
    the space at any time during rescue)?
  • Retrieval equipment is required for all Permit
    Required vertical entries greater than 5 feet
  • Be certified in emergency first aid and CPR
  • Entry Supervisor must determine how emergency
    personnel will be notified
  • Understand appropriate entry procedures
  • Know how to use rescue equipment
  • Practice confined space rescues at least annually

30
Training
  • All CCSD employees who participate in Permit
    Required or Alternate Entry Procedures including
    Entrance Supervisors, Attendants and Entrants,
    must receive training in the requirements of this
    program
  • All CCSD employees who are designated as rescue
    personnel must be trained in proper rescue
    techniques as well as CPR and First Aid

31
REMEMBER . . .
  • Call Environmental Services and/or Risk
    Management if area is questionable
  • 99 of entries are alternate entry
  • The campus/location has changed over time and is
    still changing, so dont rely on past history
  • Use the decision flow chart each time!
  • Only the Entry Supervisor may downgrade
  • All rescues are non-entry
  • Be safe!
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