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Fire Extinguishers

A fire extinguisher/extinguishing system must be carried on all vehicles, the minimum requirement being that the system be charged with one of the permitted extinguishants and be operable by the driver whilst normally seated either by manual operation or by a mechanically/electrically assisted triggering system

Capacities.
Extinguishers will be classified as Small, Medium or Large, and designated as Hand Held or Plumbed-In. Dry powder extinguishers are prohibited.

Note. The manufacture of Halons (commonly known as “BCF” has ceased world-wide and in certain countries, (not the UK) the use of Halons is now illegal. Existing Halon systems remain acceptable within these regulations in this country although every effort should be made to ensure that new systems are charged with an alternative approved extinguishant. However it must be noted that in accordance with the Montreal Convention, the use of Halon (BCF) will no longer be allowed in the United Kingdom after 1.1.2003.

When undischarged Halon systems are removed for disposal these MUST NOT be vented to atmosphere. Bottles containing Halon should be returned to a local fire extinguisher service point or to a manufacturer. Disposal advice may also be sought from local Environmental Health Offices.

Fire Extinguishers.

Following the recent unfortunate incidents with fire extinguish systems on rally cars I would strongly recommend that when purchasing a new plumbed in system purchase the larger capacity unit. The current minimum is 2.25lt. Pay particular attention to the outlet nozzle location and number of nozzles fitted. Keep the number to a minimum.

If you are replacing your BCF/Halon hand held with a AFFF unit keep the old unit. It is still a very effective means of extinguishing a fire.

3.1.4. Large, Plumbed-In, for discharge into Engine compartment, plus Medium, Hand Held for Driver or Rally Co-driver use. ®

3.1.6. Permitted Extinguishants

AFFF, ZERO 2000. (See Table above.) Copies of the list of FIA/MSA approved AFFF plumbed systems are available from the MSA.

3.2. Plumbed-In Systems (If AFFF they must be FIA/MSA homologated).

3.2.1. The Large unit should have two points of triggering, one for the driver (and Co-driver in Marshals etc.

3.2.2. The triggering point from the exterior must be positioned close to the Circuit Breaker (or combined with it) and must be marked by the letter “E’’ in red inside a white circle of at least 10cm diameter with a red edge.

3.2.3. In installing units, the direction of nozzles should be carefully considered, Induction, Exhaust, Ignition and Fuel pumping systems being the most likely areas for fire to occur.

3.2.4. Where possible sources of fire exist outside the engine or cockpit areas (i.e. front mounted fuel tanks) advice should be sought from the MSA concerning plumbed-in system installations.

3.2.5. All bottles should discharge simultaneously and must be operable in any position of the car even if inverted.

3.2.6. It is strongly recommended that plumbed-in bottles should be mounted in the fore and aft direction in the vehicle. The fitting of a pressure gauge is recommended  (mandatory for pressurised AFFF units).

3.2.7. Method of Operation: The preferred method of operation is electrical which should have its own source of energy for triggering, ideally with provision for checking the integrity of the systems triggering circuit.

3.2.8. Mechanically operated systems, if used, should be fitted with ‘Total Discharge’ valves (i.e. ones that continue to discharge even if the operating mechanism should fail after triggering). Hand held extinguishers which have been adapted, by addition of pull-cables, rarely have the capability of being operated in varying positions and are not acceptable.

3.2.9. Weight checking: Extinguisher systems should be capable of being dismantled for the purpose of checking the weight of the extinguishant and the integrity of the cylinder, also to enable the operating system to be serviced without discharging the contents.The tare weight of the unit must be marked on the cylinder.

3.2.10. Installation: Particular attention should be paid to the installation and maintenance of any system, especially if it is mechanically operated. Pull cables should be fitted in such a way that no kinks or ‘S’ bends are formed which could cause malfunction.

3.2.11. A list of plumbed-in extinguisher kits that are approved by the MSA is available on request.

3.3. During events:

3.3.1. All plumbed-in extinguisher systems must be in an ‘ARMED’ condition (i.e. be capable of being operated without the removal of any safety device) at all times whilst competing or practicing in races or speed events (including during post-event scrutineering), and at all times that crash helmets are worn on rallies (i.e. on Stages etc.).

3.3.2. Any plumbed-in extinguisher system found to be incapable of being operated will be the subject of a report to the Clerk of the Course/Stewards for possible penalty as an offence against Safety Regulations.

3.3.3. Checking for correctly ‘Armed’ extinguisher systems, should only be carried out by MSA Scrutineers, and/or Judges of Fact nominated for that purpose.

3.4. Hand held extinguishers

3.4.1. Must not be carried loose but should be retained in positive quick release brackets, secured to the vehicle by a minimum of two 6mm bolts.

3.4.2. Extinguishers with pressure gauges are recommended.

3.4.3. The tare weight of the unit must be clearly marked on the cylinder.

3.5. General

It is recommended that all fire extinguisher bottles be securely mounted within the main structure of the vehicle. It is prohibited to mount bottles of over the medium capacity outside the main structure.

A fire extinguisher/extinguishing system must be carried on all vehicles, the minimum requirement being that the system be charged with one of the permitted extinguishants and be operable by the driver whilst normally seated either by manual operation or by a mechanically/electrically assisted triggering system

Capacities.
Extinguishers will be classified as Small, Medium or Large, and designated as Hand Held or Plumbed-In. Dry powder extinguishers are prohibited.

Note. The manufacture of Halons (commonly known as “BCF” has ceased world-wide and in certain countries, (not the UK) the use of Halons is now illegal. Existing Halon systems remain acceptable within these regulations in this country although every effort should be made to ensure that new systems are charged with an alternative approved extinguishant. However it must be noted that in accordance with the Montreal Convention, the use of Halon (BCF) will no longer be allowed in the United Kingdom after 1.1.2003.

When undischarged Halon systems are removed for disposal these MUST NOT be vented to atmosphere. Bottles containing Halon should be returned to a local fire extinguisher service point or to a manufacturer. Disposal advice may also be sought from local Environmental Health Offices.

Fire Extinguishers.

Following the recent unfortunate incidents with fire extinguish systems on rally cars I would strongly recommend that when purchasing a new plumbed in system purchase the larger capacity unit. The current minimum is 2.25lt. Pay particular attention to the outlet nozzle location and number of nozzles fitted. Keep the number to a minimum.

If you are replacing your BCF/Halon hand held with a AFFF unit keep the old unit. It is still a very effective means of extinguishing a fire.

3.1.4. Large, Plumbed-In, for discharge into Engine compartment, plus Medium, Hand Held for Driver or Rally Co-driver use. ®

3.1.6. Permitted Extinguishants

AFFF, ZERO 2000. (See Table above.) Copies of the list of FIA/MSA approved AFFF plumbed systems are available from the MSA.

3.2. Plumbed-In Systems (If AFFF they must be FIA/MSA homologated).

3.2.1. The Large unit should have two points of triggering, one for the driver (and Co-driver in Marshals etc.

3.2.2. The triggering point from the exterior must be positioned close to the Circuit Breaker (or combined with it) and must be marked by the letter “E’’ in red inside a white circle of at least 10cm diameter with a red edge.

3.2.3. In installing units, the direction of nozzles should be carefully considered, Induction, Exhaust, Ignition and Fuel pumping systems being the most likely areas for fire to occur.

3.2.4. Where possible sources of fire exist outside the engine or cockpit areas (i.e. front mounted fuel tanks) advice should be sought from the MSA concerning plumbed-in system installations.

3.2.5. All bottles should discharge simultaneously and must be operable in any position of the car even if inverted.

3.2.6. It is strongly recommended that plumbed-in bottles should be mounted in the fore and aft direction in the vehicle. The fitting of a pressure gauge is recommended  (mandatory for pressurised AFFF units).

3.2.7. Method of Operation: The preferred method of operation is electrical which should have its own source of energy for triggering, ideally with provision for checking the integrity of the systems triggering circuit.

3.2.8. Mechanically operated systems, if used, should be fitted with ‘Total Discharge’ valves (i.e. ones that continue to discharge even if the operating mechanism should fail after triggering). Hand held extinguishers which have been adapted, by addition of pull-cables, rarely have the capability of being operated in varying positions and are not acceptable.

3.2.9. Weight checking: Extinguisher systems should be capable of being dismantled for the purpose of checking the weight of the extinguishant and the integrity of the cylinder, also to enable the operating system to be serviced without discharging the contents.The tare weight of the unit must be marked on the cylinder.

3.2.10. Installation: Particular attention should be paid to the installation and maintenance of any system, especially if it is mechanically operated. Pull cables should be fitted in such a way that no kinks or ‘S’ bends are formed which could cause malfunction.

3.2.11. A list of plumbed-in extinguisher kits that are approved by the MSA is available on request.

3.3. During events:

3.3.1. All plumbed-in extinguisher systems must be in an ‘ARMED’ condition (i.e. be capable of being operated without the removal of any safety device) at all times whilst competing or practicing in races or speed events (including during post-event scrutineering), and at all times that crash helmets are worn on rallies (i.e. on Stages etc.).

3.3.2. Any plumbed-in extinguisher system found to be incapable of being operated will be the subject of a report to the Clerk of the Course/Stewards for possible penalty as an offence against Safety Regulations.

3.3.3. Checking for correctly ‘Armed’ extinguisher systems, should only be carried out by MSA Scrutineers, and/or Judges of Fact nominated for that purpose.

3.4. Hand held extinguishers

3.4.1. Must not be carried loose but should be retained in positive quick release brackets, secured to the vehicle by a minimum of two 6mm bolts.

3.4.2. Extinguishers with pressure gauges are recommended.

3.4.3. The tare weight of the unit must be clearly marked on the cylinder.

3.5. General

It is recommended that all fire extinguisher bottles be securely mounted within the main structure of the vehicle. It is prohibited to mount bottles of over the medium capacity outside the main structure.