Firefighting In Basements Flashcards
What is the minimum weight of attack
45mm jet
What setting should the branch be set at.
230lpm
What should be in place before commiting crews into a basement.
2 x 45mm jets
1 x 45mm jet longer
Entrance and exit protected.
Secured water supply with twinned 70mm hose.
Name 10 hazards with basements
Utilities Heat barrier Fire loading Rabbit warren layout Heat stress Cramped conditions Flashover/backdraught Engagement Hoarding Communication
Where will crews get information from on basements
7.2 ds
ORD
What fixed installations can be present in basements
Sprinklers Automatic fire alarm Falling main Foam inlets Mechanical ventilation or smoke extraction
Where should the IC locate for a basement incident.
Surface level unless pre planning states otherwise such as fire control room.
Who should the first IC try to locate.
Responsible person
What considerations should the IC be thinking about.
Additional resources
Safety officer
Sectors
Who can advise the IC on fixed installations
Senior Fire Safety Officer
IC should also consider what with ducting.
Ducting and ventilation pipes and a full search of these done with TIC
What can a Firefighting crew use to assist in searching and firefighting
TIC
What stage of BA is used at basements
Stage 1
But consideration should be given to early use of stage 2 or criteria hit for stage 2
When should Basement Procedure message be sent
When the IC has committed BA teams to the basement with a minimum of 45mm hose and branch set to 230lpm. A team protecting egress with 2nd 45mm jet at 230lpm.
What does it mean when Basement Procedure implemented is sent
A DRA has been carried out and SSOW has been implemented
What can be used to improve communication at Basement incidents
Leaky feeder channel 5
If using open water for water supply what must it be
Virtually inexhaustible i.e river canel
When can ventilation take place
Only on the IC order
What must be in place before ventilation takes place
Covering jets adjacent to opening
These must not be directed directly into the fire as they will push flame back.
Can ventilation take place before crews are committed
Yes, if no life is to be saved and it can improve conditions for crews prior to entry.
What can incorrect use of ventilation sytems cause.
Worsen conditions for persons involved.
Increasr fire spread
Lead to a backdraught
