OP 4540 Confined Space Rescue Flashcards
Define a confined space
- big enough to enter
- limited entrance/exit
- not designed for long term occupancy
What makes something a permit required confined space?
- inward converging walls
- possibility of engulfment
- any other Hazardous environment
5 things that can make a Confined Space hazardous
- Any IDLH
- Flammable vapors about 10% of LEL
- Airborn contaminates exceeding LEL or cant see past 5’
- O2 below 19.5 or 23.5
- Radiological
Tactical Elements of Confined Space
Command
Medical
Rescue
Hazards
On Scene information for confined space
Standard (just say what you see while you continue to gather info)
Stage and best access
Information you should include in a size up
Type of confined space (permit) Number of victims/location Additional resources Hazards Rescue mode and if we can conduct non entry rescue
Duties that need to be completed by Hazards
- control/mark utilities (lock out tag out)
- monitor area
- ventilation
- set up zones
Where are the recordings of atmosphere conditions logged
Rescue/entry permit (505)
Lighting in and around a confined space must be…
Approved and intrinsically safe
Rescue Group duties at a confined space
- stabilize the scene if need be
- set up retrieval system/fall protection
- affect rescue
- assure site/access control
Fall protection or travel limiter needed for anyone within how close of vertical opening
6’
What does the entry team consist of and they work for who?
Entrants and attendants who work for entry team leader
What safety requirements need to be put in place at confined space?
- for every entrant there needs to be a backup entrant
- tanks/vessels should be entered from side when possible
- need designated comms
- need approved breather for IDLH
