SOG 418 Flashcards
SOG 418
Confined Space
A confined space refers to a space which:
-Is not intended for continuous occupancy
-Has limited openings for entry and exit
-Has unfavorable natural ventilation which may contain: a toxic and/or flammable atmosphere
oxygen levels below 19.5% or above 23.5%
-Is an open-top space more than four feet deep.
Confined space first arriving unit will:
1) Establish command
2) Size-up the incident
3) Determine the condition of the victims prior to entry
4) Determine the condition of the atmosphere
5) Initiate the appropriate action
Confined space command positions
- Incident commander
- Safety officer
- Accountability officer
- Rehabilitation officer
Confined space operational positions
- Atmosphere monitors
- Ventilation
- Lock out/Tag out
- Attendant
- Entry team
- Entry Rescue team
Confined space ______ planning is of utmost importance
Pre-entry
If there is ______ point, duct work should be placed in the confined space and positive pressure ventilation applied.
1 entry/exit point
If there are ______ points, into the confined space, negative pressure ventilation may be provided at one entry/exit point and positive pressure ventilation at the other.
2 entry/exit points
The space should be sufficiently ventilated so that levels of combustibles do not exceed ______ of their LEL nor should toxic substances be permitted to reach their respective threshold limit
10%
All personnel entering a confined space shall don the following:
- Wear a full body harness
- Wear an SCBA or SAR
- Have a lifeline attached
Confined space safety considerations:
-Working time
-Mechanical
-Engulfment
-Electrical
-Chemical
Sparking Hazards
For each incident requiring confined space entry, the following shall be completed:
- Confined space entry checklist
- Confined space medical checklist
- Confined space entry command sheet
