Cordons PN 415 Flashcards
What are the benefits of a cordon?
Separate those at risk from the hazard
Facilitate the operations of emergency services
Protect the scene and prevent unauthorised access
What does a cordon denote?
A hazard area within which a level of training, PPE, supervision or information is required for safe operations
Name 3 types of Cordon used on the incident ground
Inner
Outer
Traffic
What is an inner cordon?
To restrict or exclude fire service or other emergency services from the scene of operations (hazard zone)
How is an inner cordon boundary be marked?
Yellow barrier tape with ‘Hazard Zone’ written in black.
Who gives approval for people to enter the inner cordon?
Only the IC or nominated officer
What is an Outer Cordon?
A boundary surrounding the inner cordon that separates the public from areas used by emergency services for support activities.
How is the outer cordon marked?
Using white barrier tape marked in red ‘Fire Service - do not cross’
Who controls the entry and exit points of the Outer Cordon?
The police
What is a traffic cordon?
Established beyond the outer cordon to prevent unauthorised access to the scene.
Who establishes and maintains the traffic cordon?
Normally the police.
What tools are available to identify the positioning of a cordon?
Each brigade atlas should have an acetate overlay which are designed for cylinder incidents
or use the CSS on board the CU.
Who should you tell if you implement a cordon?
Everyone on the incident ground and control.
What information about the cordon should you tell Control?
The position, suitable approach routes or RVP for oncoming vehicles
At an incident where the LFB has primacy, who is responsible for the safety of all emergency service personnel with the inner cordon?
The IC
At a major incident who is / was referred to as Fire Silver?
The IC
At a major incident who is / was referred to as Fire Bronze?
Sector commanders
When does the fire brigade stop having responsibility for safety of all personnel within the inner cordon?
When the brigade no longer has a prime role at the incident. it will be handed to the police.
Describe the Hot Zone
The area where gross contamination will occur / area of greatest risk
Decribe the warm zone
The area surrounding the hot zone, risk of cross contamination. Gross contamination should be removed within this zone.
What is the cold zone?
The area between the warm zone and the outer cordon
Before removing a cordon what should happen?
Speak to the other services in case they need the cordon to remain (ie crime scene)
What is the cordon for Government explosives?
500m
What is initial hazard zone for cylinder procedure?
200m
What is initial zone for ionising radiation?
25m depending on survey meter
What is minimum zone for HAZMATS?
Minimum 25m upwind
Minimum zone for asbetsos?
25m upwind
What is minimum cordon for terrorist related incidnets?
suitcase - 100m
car - 200m
lorry - 400m
if in doubt - 400m
What is the radio exclusion zone at terrorist incidents?
hand held radio - 10m
main scheme - 50m
Who picks the colour of the armband worn at major incidents and given out by the Inner Cordon Controller?
The police ‘silver’ will pick a different colour each day
