Ariels Flashcards
<p>Uses of Arials</p>
<p>• Rescue operations (at all levels, including basements).
• Casualty retrieval with on-board stretcher equipment.
• Observation platforms.
• Water tower.
• Foam delivery (secondary aspiration – finished foam that is produced by standard water
devices).
• External dry riser if the fixed installation is unavailable or defective (both the Aerial ladder
platform (ALP) and the hydraulic platform (HP) are able to perform this role).
• High level ventilation.
• Floodlighting.
• Other special service incidents not listed above, such as assisting other agencies, animal
rescue, high level access, and when making safe (items in precarious position).
</p>
<p>Operational considerations</p>
<p>• Incident commander(IC) to consider siting of all appliances, once in position they are difficult
to move.
• ICs implement their plan on how aerials are to be used and should take advice from the aerial
crews on whether the task is achievable (use appendix 1 as guidance).
• When being used as a water tower a dedicated pumping appliance must be provided to
supply the aerial, this appliance crew must remain with the aerial crews for specific tasks.
.Water tower IC risk asess with Arial IC
Safety officers must always be appointed when crews are required to work within a building
and an aerial is being used as a water tower.
• All personnel working aloft in the cage, or on the ladder, are to wear safety harnesses and
follow all safety procedures.
• Aerial crews are to make regular stability checks, including looking for creeping of the jacks
and changes in ground conditions, especially when in use as a water tower.
• Breathing apparatus (BA) wearers working at the head of the appliance must follow
procedures as per Policy number 466 - RPE - breathing apparatus - operational procedure.
• When working near high voltage power cables 10/20/30 metre rule as per Policy number 769
- Incidents involving electricity.
• Aerials should not be positioned near aerial/radio transmitters as per Policy number 298 -
Operations at radio transmitter sites.
• When working in high winds, necessary safety precautions should be adhered to as per Policy
number 020 – Turntable ladder-restricted use during strong wind and Policy number 229 -
Weather warnings.
• IC to consider and order reliefs for aerial, appliances and crews, as this can take a long time to
organise and mobilise, Policy number 772 – Reliefs at incidents</p>
<p>When working near high voltage power cables, aerial crews use the following safe working
distances rules as for other equipment (see Policy number 769 - Incidents involving electricity)</p>
<p>• 10m operationally (no water);
• 20m training (drills);
• 30m water tower.
</p>
<p>When using an aerial appliance as a water tower:
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<p>A dedicated supply pump must be provided to supply only the aerial appliance. The IC must
nominate an appliance pump and its crew to facilitate this. This may mean that the IC has to
amend the operational plan and order an additional pump for this purpose and this should be
considered when planning resource requirements.
4.17 The dedicated pumping appliance should be sited as close to the aerial and no more than one
hose length away wherever possible. Frictional loss can increase to over one bar per length of
70mm hose when delivering over 2000L of water per minute. The pumping appliance crew will
be allocated to the aerial appliance and will only undertake tasks to assist the aerial appliance
822 Issue date: 5 March 2013 5 of 14 crew during deployment. Tasks such as delivering water and the safe management of hose when
the appliance is being extended, elevated, depressed, trained or housed. Additional personnel
should be provided where required to perform any other tasks.
4.18 Before water is discharged into or onto any building the IC must consider:
• Water loading – aerials can supply up to 2.45 tons of water per minute.
• Water pressure and its effect on the fabric of the building, debris and personnel.
• Fire travel: application of water from an aerial may have the effect of pushing fire through the
building and affect crews working elsewhere.
• Damage control and flooding.
• Water run-off.
4.19 Prior to its use as a water tower a thorough risk assessment must be undertaken by either the
incident commander, operations commander or sector commander if delegated to do so by the
IC, in consultation with the aerial operator. Personnel should be withdrawn to a place of safety
immediately prior to the operation of a water tower and the fact a water tower is being used must
be communicated clearly to all personnel in the sectors. Once the water tower is in use, the IC,
operations commander or sector commander should undertake a further risk assessment before
re-committing personnel into the area where the water tower has been in use.
4.20 The jet from an aerial appliance must never be directed into a compartment where firefighters are
working, but may be directed on other parts of the building depending on the location and the
effects of large quantities of water on the fire, building and floors.
4.21 Safety officers must always be appointed when crews are required to work within a building and
an aerial is being used as a water tower.
4.22 Monitors on ALPs and TLs can be remotely controlled at ground level from the base console
operators seat. HPs do not have this facility.
4.23 All aerial appliances are capable of delivering secondary aspirated - finished foam that is
produced by standard water devices</p>
<p>Breathing apparatus
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<p>BA wearers working at the head of an aerial appliances (Policy number 466 - RPE - breathing
apparatus – operational procedures, section 5.4 and section 36) must adhere to the following:
4.25 On all occasions where BA is being used on aerial appliances the base operator should ensure a
clear view of the cage/head whenever possible. If the cage/head becomes enveloped in smoke
or be otherwise out of view, the base operator should confirm with the firefighter working at the
head that it is safe to continue operations, and should inform the IC of the change in conditions.
4.26 The base console operators seat must be sited in “safe air” (i.e. an atmosphere that will not cause
respiratory discomfort or injury) and the operator must not wear BA, as the BA facemask may
restrict vision.
4.27 Aerial appliance cages must not be used as BA entry control points.
822 Issue date: 5 March 2013 6 of 14 4.28 Where an aerial appliance is used to provide means of access for personnel wearing BA, or where
the cage is occupied by firefighters wearing BA whether or not they are aerial operators, the
operation of the appliance will only be operated by means of the base console. Under no
circumstances should the aerial cage or ladder be moved when used for this purpose, this is in
order to maintain the access/egress for crews committed.
4.29 Firefighters working at the head of an aerial appliance must only wear BA on the order of the IC.
BA can be worn at the head of an aerial appliance (for example when using the monitor) and
following points must be adhered to:
(a) All BA command and control procedures; the ECO should make an entry in the remarks
column of the location of the wearer and the fact that they are working alone.
(b) Regular communication must be maintained between the ECO, the wearer and the aerial
operator.
(c) the BA wearer must not leave the head/cage.
4.30 Where all forms of communication are lost, or conditions deteriorate, the operator at the base of
the appliance should immediately train the head of the appliance away from the hazard area</p>
HP Attributes
Physical Attributes Working height: 23.5m Maximum projection: 12.45m Cage Capacity: 4 -6 Persons Jack Spread: 4.16 /4.88m Jack Ground pressures: up to 8t 16t Laden Weight Cannot reach below ground Cannot carry stretcher Manufacturers Specifications for Water Tower Output 2275 l/m @ 5.8 bar @tip (10 bar @ base)
TL
Physical Attributes Working Height: 32m Maximum Projection: 26.5m Cage Capacity: 3 Persons Jack Spread: 2.5 – 5m variable Jack Ground Pressures: up to 4.5t 15t Laden Weight Can reach up to 6m (17˚) below ground level Wind Restrictions begin at 30mph dditional Features Manufacturers Specifications for Water Tower Output: 2000 l/m @ 5.8 bar @ tip (10 bar @ base)
Stretcher Frame for Casualty
Rescue (Orange Ferno -
FRU/LAS compatible)
Floodlighting Tower
ALP
Physical Attributes Working Height: 32m Maximum Projection: 24m Cage Capacity: 4 Persons Jack Spread: 2.5 – 6m variable Jack Ground Pressures: up to 15t 23t Laden Weight Can reach up to 5m below ground level Wind Restriction: Cannot work in winds over 30mph Additional Features Manufacturers Specifications for Water Tower Output: 2450 l/m @ 5.8 bar @ tip (10 bar @ base)
Stretcher Frame for Casualty
Rescue (collapsible – can
accept Orange Ferno)
Floodlighting Towe
