The operational and maintenance protocols for a Dry Powder Fire Extinguisher (ABC Type) within a maritime or industrial environment. Designed for versatility, this extinguisher is engineered to suppress three specific fire classifications:
Fire Classifications
Class A: Involving carbonaceous solids like wood or paper.
Class B: Involving flammable liquids such as fuel or oils.
Class C: Involving energized electrical equipment.
The PASS Operational Method
To maximize discharge effectiveness, operators must follow the PASS protocol:
Pull: Disengage the safety pin to break the tamper seal.
Aim: Direct the discharge nozzle at the base of the flame, not the heat.
Squeeze: Depress the lever to release the pressurized dry chemical agent.
Sweep: Move the nozzle horizontally across the fuel source until the fire is extinguished.
Maintenance & Readiness
Reliability is maintained through routine inspections of the pressure gauge (ensuring it remains in the "green" zone), verifying the integrity of the hose and nozzle, and ensuring the unit is kept dry to prevent powder compaction. Professional annual servicing is mandatory to certify the cylinder's structural and chemical readiness.