may 20121 confined space rescue awareness training bothell fire and e.m.s. & king county zone...
TRANSCRIPT
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1May 2012
Confined Space RescueAwareness Training
Bothell Fire and E.M.S.
&
King County Zone One
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ConSpace Rules
WAC 296-305-5003 WAC 296-62-141 CFR 29-1910 NFPA 1670 NFPA 1006 NIOSH 1994
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Objectives
Recognize regulations governing operations in Confined Spaces
Identify the definition of permit and non-permit Confined Space.
Identify differences between Confined Space and permit Confined Space.
Identify equipment required to mitigate a Confined Space Rescue.
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The Facts
Approximately 60 deaths a year are in Con Space.
60% of these deaths are rescuers.
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What Hurts Us
65% Hazardous Atmospheres 13% Engulfment 7% Struck by falling object 6% Heat stress/exhaustion 4% Others
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A Confined Space is :
Large enough to get into and perform assigned work, and
Has limited or restricted means of egress, and
Is not designed for continuous occupancy
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A “Permit” CS : Contains or has the potential to have a
hazardous atmosphere or Contains a material that has the potential
for engulfing an entrant or Has an internal configuration such that an
entrant could be trapped or asphyxiated by inwardly converging walls or a floor which tapers or
Contains any other recognized serious safety or health hazard.
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Typical Permit Confined Spaces
Storage tanks Pump wet wells Degreasers Sewers Manholes Tunnels
Silos Vessels Mixers Water towers Underground
vaults Boilers
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Examples
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Examples
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Examples
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Examples
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Examples
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Examples
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Examples
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More Examples
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More Examples
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Dangers of Confined Spaces
Oxygen deficiency By-products of
previously stored material
Accidental leaks/spills
Chemical reactions
Mechanical operations
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Types of Confined Space Hazards
Atmospheric Hazards Physical Hazards Engulfment Hazards Corrosive Hazards Biological Hazards Other Hazards
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Atmospheric Monitoring
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Atmospheric Monitoring:
Initially and prior to entry all atmospheres shall be tested.
The testing will provide information that will: Help select PPE Determine areas where protection is
needed. Assess the potential health affect Determine the need for specific medical
monitoring.
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Gas Monitoring Equipment
Most are real time Single gas
monitors
Multi-gas monitors Must be portable
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Monitoring for Oxygen
The percentage of oxygen in atmosphere
Most monitors read 0% - 25%
19.5% - 23.5% is typically acceptable
Will alarm at either level
Disadvantages:*Must calibrate to settings*May be damaged by certain gases or vapors
Advantages:*Quick response time*Portable
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Monitoring for Flammables
Second priority to oxygen
May not read if oxygen is <10%
Uses LEL Not 0% - 100% vapor
in air Alarms @ 10% of LEL,
not 10% of vapor. Usually calibrated to
pentane or hexane
Advantages:* Fast Response* Simple Operation* Audible/Visual Alarms* Portable* Choice of Sampling
Disadvantages:*Calibrated to one gas*False Readings in Low Oxygen Areas.*May be Damaged by Compounds
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You Don’t Want to be this Guy?
Do You?
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Phases of Confined Space Rescue Preparation Assessment Pre-entry operations Entry operations Termination
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Phase I Preparation
Rescue team evaluation Equipment evaluation Hazard evaluation Personnel evaluation ICS
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Preparation:Equipment Evaluation Respiratory protection:
- SAR or SCBA
- Enough for entry
& back-up
- Victim?? Ventilation Atmospheric monitoring Lockout / Tagout PPE Lighting Communication
Rope, harnesses, & hardware Patient packaging Fall protection, tripods, davits Passport systems / tracking
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Preparation:Hazard Evaluation Sites of high likelihood:
- Industry- Projects- Water treatment / sewage
MAKE CONTACT!! What do they do? What do they store? What can hurt you? How do you control it? Are they trained?
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Phase IIAssessment Approach assessment Resource assessment
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Assessment:Approach Assessment Enroute game plan At scene:
Number of patients Location & last time contacted Type of space Location of entry points Use of space Other hazards Pre-entry measures
DETERMINE SURVIVABILITY PROFILE!!
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Assessment:Resource Assessment Compile all approach assessment
information Develop a plan Look at what resources you have,
and what’s enroute. Is it enough? Call early!
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Assessment: Documentation Before entering document all
safety measures Permits, atmosphere readings,
safety checklist IF IT ISN’T WRITTEN OR TAPED
IT NEVER HAPPENED!!
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Phase IIIPre-entry Operations General area safety:
Hot, warm, cold zones General area ventilation Outside ignition sources
Rescue area safety: Huddle up – make assignments Atmosphere monitoring Ventilation Entry team support – medical screen Pre-entry brief
Expected physical challenges Space layout & hazards
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Phase IVEntry & Rescue Operations Duties of Rescue Group
Supervisor: Develops & manages the plan
Duties of Attendant: Monitor atmosphere & record Maintain log of entry teams Stay in communication with entry &
supervisor
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Entry and Rescue Cont:
Duties of Entry Teams: Watch out for each other, hazards,
& space / patient condition (L&I) Communicate with attendant &
each other Assess patient and extricate
appropriately Brief additional teams
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Entry and Rescue Cont:
Duties of Back-up teams: Stand by in a ready position (no
other assignments) Duties of Rigging Team:
Build & manage retrieval system Provide patient packaging
Duties of Air Supply: Lots of spares, or cascade
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Entry and Rescue Cont:
Other Positions Medical Decon Cops (scene safety)
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Phase VTermination Document exit time Medical evaluation & rehab Report space & patient condition Wrap up equipment & decon Secure the space PIA
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