INVOLVED-SM-High rise

Question 1

Equipment needed at the bridgehead as a min?

Answer 1

2 x branches
45mm for both attack and covering jets
BAECB
2 x sets
IEC pack
Long line
Breaking in gear
TIC
Keys/codes
Plans

Question 2

You can, if needs be, set up a staging area the floor below the bridgehead.
Three groups of hazards for high rise?

Answer 2

1 - Building height and design
2 - Fire behaviour and development
3 - Firefighting a rescue operations

Question 3

HR
When glass and curtain walling falls from height it’s called?
Comms blindspots may exist with high-rise

The operation of fire suppression/total flooding systems may result in______?

Answer 3

Planing

Oxygen deficient or irrespirable atmosphere

Question 4

Wind speeds are likely to increase with height, at high rise this may result in_____?

What may increase fire spread throughout the building?

Answer 4

Coanda effect

The stack effect.

Question 5

As smoke rises _____ may occur..

Answer 5

Stratification.

Question 6

Building regs require all buildings over ___ in height to make provisions for firefighting.

Those is excess of ___ require wet systems.

The basic facilities within these buildings will include.

Answer 6

18m

60m - 50m as of 2006

Firefighting shaft
Dry/wet rising main
Fire lift

Question 7

At a high rise incident with tow stairwells, what might you use them for?

How much water can a DRM deliver?

Answer 7

‘Attack’ and ‘Evacuation’ stairwells

1500 litres/per minute

Question 8

HR

When in operation, is it ok to turn a sprinkler system off in order to supply water for fire services branches?

Answer 8

Not normally no.

Question 9

Not designated lifts should not be used for FF operations at a HR incident.

Crews must exit a fire lift __ floors below where the fire is believed to be.

Answer 9

2

The fire lift should remain at the bridgehead to that people can be quickly brought down.

Question 10

Where should a bridgehead be established?

How many personnel go up?

How long should the second jet be?

Answer 10

Two floors below fire floor… .Also in a firefighting lobby and not a corridor.

Min of 4 - CM, 2xBA & ECO.

One length longer than the ‘attack’ jet. The covering jet can be supplied from the fire floor.

Question 11

High rise
If signs of backdraft, flash hover etc are present what must happen prior to committing the first BA crew?

The IC should follow the plan devised by_____?

Answer 11

A covering jet and BA team must be present before committing the S and R team.

The occupiers fire RA

Question 12

What should the IC consider prior to ventilation at a high rise fire?

Answer 12

1 - And adverse affects on fire developments, backdraft/flashover.
2 - The impact that wind may have if windows or doors are open or should fail.
3 - The need to withdraw personnel.

Question 13

When can you send high rise procedure implemented?

If signs and symptoms of backdraught etc are present what must be in place prior to a BA team being committed into the fire compartment?

Answer 13

A. Risk assessed the BH
B. Access and egress to and from BH is secured and maintained
C. BH is established with two charged jets deployed (in the correct manner)

A covering jet and BA team

Question 14

Can FFs be committed above the BH without BA?

Answer 14

If not affected by smoke or fire and the IC has confirmed that the buildings construction and any fire engineered solutions have not been compromised - then yes.

Teams must maintain contact with BH and a safety officer must be deployed in the stairwell and be in contact with other safety officers.

Question 15

What could you use as an evacuation plan?

Can the IC change the advice being given to FSG callers?

Answer 15

The evacuation plan devised as part of the occupier’s fire risk assessment - unless the fire dictates otherwise.

Yes in liaison with the officer in charge at control (who will be needed for agreement)

Question 16

What do you do with building ventilation systems that are operating on arrival?

Answer 16

Should be left switched on until the IC is satisfied, as a result of discussion with an on/site engineer or FSO that switching it off will not cause an escalation to the fire - consider covering jets

Question 17

What should you identify prior to operating any ventilation or heating systems or undertaking ventilation

Answer 17

The path that fire, heat and smoke will follow to escape to open air or other compartment in the building

Any adverse affect on fire development - flashover etc

Adverse affect on evacuation

Impact wind may have if windows or doors are opened prematurely

Question 18

When is a FSO informed?

What should you take into account when setting up a cordon?

Answer 18

All four pump fires, will attend five and above..

Size, height and construction of building

Question 19

What must a BA team do if radio comms and telemetry are lost?

What should be checked prior to handing the building over to the responsible person?

When conducting a 72d crews should check there is parking within a certain distance of rising main outlets..name that distance?

Answer 19

Withdraw

Fire protection and structural safety should be assessed to ensure it’s not been compromised

18m

Question 20

Who would you inform and subsequently report of any building defects found?

Answer 20

Inform building owner of defects or safety issues concerning FF facilities and report to RMC as an alleged fire risk. FSO will be informed and determine the appropriate action

Question 21

Where are detailed recommendations kept on the provision of firefighting shafts within buildings?

Capacity of FF lift…?

Are they the same as fireman’s lifts…? If not why not?

Answer 21

BS 9999

8 persons 850kg

No - this is a normal lift fitted with a ‘fireman’s switch’ - installed pre 1980s, no structural protection, protected services, duplicate power supplies, functionality or overall resilience that the more modern ones have.

Question 22

Minimum requirements when assessing whether a lift should be used by FFs:

Answer 22

Primary and secondary power supplies 
Water protection measures 
FF recall switch 
FF in car controls 
FF comms system
Floor indicators

Question 23

Where should riser outlets be located?

British standard requires isolation valves at intervals of what?

An option if the wet rising main fails?

Answer 23

Protected lobby or approach stairway

Not exceeding 10m

Identify whether the system has isolation valves installed and use these to optimise water supplies to the outlets being used

Question 24

What are the outlet pressure on building pre and post 2006?

At which height should water suppression systems be found?

What three functions do sprinklers perform?

Answer 24

Pre 2006 - 4 to 5 bars
And now it’s 8 bars

Residential buildings over 30m since 2006

Detect fire, attack and give an audible warning

Question 25

How many dividing breechings can you use in a Rising main?

Where should it be plugged in?

Who should install (manage) the dividing breeching And first FF jets?

Answer 25

One only - and always directly onto the rising main not a length of hose

Floor below fire floor

Initial BA crews as they will be required to pass through BA entry control