Firefighting In Basements Flashcards
1
Q
Hazards
A
- Metabolic heat stress
- High temperatures/heat barrier
- Flashover/backdraught
- Uncontrolled ventilation
- Complex layout
- Heat/smoke travel via ducting/voids
- Limited access & egress
- Cramped conditions
- Poor lighting
- Cable entanglement
- Fire loading/goods & racking collapsing
- Disorientation
- Hazardous materials without signage
- Utility intakes
- Difficulty with comms
2
Q
Where should the IC run incident from?
A
Surface level unless pre-planning has located more appropriate location eg: fire control centre
3
Q
Considerations before ventilating
A
- Adverse effect on any persons involved
vs
- Benefit for FF’s entering and persons evacuating
4
Q
Considerations and essentials for committing crews
A
- BA team with 45mm (230l/min) ff’ing
- BA team with 45mm (230l/min) protect 1st team’s access/egress route
- TIC
- Consider stage 2 ECO
- Consider EDBA
- Consider guidelines
5
Q
When can you send ‘basement procedure implemented’ message?
A
Once 2x BA teams committed (one to ff, one to protect access/egress), both with 45mm set to 230l/min
6
Q
Considerations for welfare of personnel
A
- Early reliefs
- BA crews should not be re-committed unless exceptional circumstances
- Arrangements for hydration
7
Q
What can be requested and used to improve comms and telemetry?
A
- Leaky feeder
- Telemetry signal repeater
8
Q
Considerations with ventilation
A
- Only carried out on orders of IC
- Covering jets in place
- If practicable ventilate before committing BA
- Absolutely no ventilation while crews committed
9
Q
Hazards of ventilation
A
- Can adversely affect any persons involved
- Can result in rapid/uncontrolled fire spread
- Can lead to backdraught
10
Q
Fixed installations that may be present
A
- AFA system
- Mechanical ventilation/smoke extraction system
- Falling mains
- Sprinklers
- Foam inlets
- Gas flooding systems
- Protected shafts/ff lifts
