376 Cylinder Procedure Flashcards
Who should the IC seek advice from when at a cylinders reported incident
HMEPO
Heat at which steal and aluminium loses its tensile strength
300c steal
200-250c ally
Why must Acetylene cylinders have additional cooling out in place when involved in a fire
They have self heating potential
Max distance projected fragments from an exploding steel cylinder
200metres
Max fireball diameter of a failing cylinder
25metres
Where a COMPOSITE cylinder has failed and is burning what must be done
Allow contents to burn out do not extinguish
Minimum level of protection when working within 25m of a heated cylinder
BA
Cylinders confirmed not acetylene involved in a fire what cordon must IC consider
200metres
Cordon size for acetylene
? 400m
When implementing a Hazard Zone cordon for cylinders the IC must send a message to control with what info (5)
Actions taken
Number of evacuees
HZ size and road closures
RVP and approach route
Tac mode
After implementing a Hazard Zone cordon a message should be sent to control stating what (3)
Highest recorded temp of cylinder involved
Hazard zone size
Tac mode
How to carry out a CAP test
After 1 hour of cooling with water…
TIC
observe if violent steaming or ambient
Leave cooling water off 15 mins and REPEAT
Apply a momentary spray
(4 cycles)
What does CAP stand for
Cylinder Assessment Process
How would you turn off an acetylene cylinder
With a suitable key
If it is not possible to shut down a cylinder what must IC do
Req attendance of RRT or FRU with DIM to monitor the atmosphere
When req HMEPO is this a priority req
Yes
During a hazard zone cordon the IC may have difficulty with residents refusing to leave premises. What must IC do
Tell them shelter indoors and away from windows those which are in direct line to the incident
How would an ally cylinder fail
200-250c quickly and potentially catastrophic
