Natural Gas And CO Flashcards
The legal responsibility for dealing with natural gas leaks including carbon monoxide and natural gas safety rests with who
The gas authority
Natural gas high pressure gas pipelines called the National transmission system operate at what bar pressure
85 bar
Natural gas local distribution zones called the medium pressure system operate at what bar pressure
25 bar
Natural gas
gas distribution site at what bar pressure is gas distributed to domestic customers
1 bar
Natural gas the high pressure system can take up to how long to be turned off due to the gas having to be staged down
One hour
Natural gas what is the PDA for a natural gas leak
An initial one pump attendant is dispatched to investigate
Natural gas what is the minimum distance appliances should be positioned from a suspected leak
25 m
Natural gas what is the minimum hazard zone to be implemented for a gas leak at an NTS and LDZ site
200 m.
Crews working within this zone to affect rescue must have full PPE and BA
Natural gas under congested conditions a minimum hazard zone or what size should be established at an NTS and LDZ site
600 m
Natural gas when there is an uncontrolled leak from a mass storage site what is the minimum hazard zone
1000 m
Natural gas where a leak in the natural gas supply is suspected a cordon to ensure public safety should be a minimum of how many metres
25 m
If a crew is to be committed to shut off the gas supply what is the minimum PPE required
Full PPE and BA.
The responsibility for the safety of the gas supply rests with the gas authority this should only be undertaken when there is a risk to life in surrounding buildings or critical infrastructure
Natural gas does the fire service have power of entry at a gas leak incident for the purpose of securing the gas supply
No.
However the gas authority does crews should not make an entry on behalf of the gas authority unless there is an exceptional public safety issue
Natural gas who has overall authority for the safety of anyone working at a natural gas incident
The LFB incident commander is responsible for the safety of anyone working at the incident
Natural gas when sending a message to control what must be included within the message
Whether the incident is inside or outside the premises.
The size of the fire.
Whether any injuries have been sustained by members of the public.
Carbon monoxide at a level one attendance what is the minimum level of PPE a crew must be Rigged in to ventilate the premises
Full PPE and breathing apparatus is required.
This is to prevent small doses of CO accumulating over time
Carbon monoxide at a suspected large release or persons are reported trapped what level attendance will be required
Hazmat level 2 required
Natural gas a request to remain on site to provide cover for the gas authority workforce should be authorised by who
The duty DAC.
This may be a chargeable service
Natural gas faulty equipment the gas authority official will want to try to establish the gas apparatus fault the incident commander should make every effort to preserve the scene when an investigation is likely who should the incident commander contact
A request for the fire investigation team should be made
Natural gas.
The on arrival tactics for a natural gas leak or a carbon monoxide leak can be described in three words what are they
Isolate.
Evacuate.
Ventilate.
Natural gas when a gas leak has ignited what is the priority of the incident commander
The flame should not be extinguished but surrounding risks should be protected by lasting jets in place and evacuating the area until the gas supply has been isolated
