Before grabbing an extinguisher, you must understand what you are facing. Fires are categorized into classes based on the burning material. Standard A ensures you use the right tool for the right fire.
| Class (Lớp) | Material Type (Loại vật liệu) | Description in English (Mô tả chi tiết) |
|---|---|---|
| Class A | Solid Combustibles (Chất rắn) | Fires involving organic solids such as wood, paper, cloth, and plastics. These are the most common fires in office environments. |
| Class B | Flammable Liquids (Chất lỏng) | Fires involving liquids or liquefiable solids such as petrol, oil, alcohol, paints, and solvents. These fires spread rapidly and generate high heat. |
| Class C | Flammable Gases (Chất khí) | Fires involving gases such as LPG (Cooking gas), Methane, and Acetylene. The primary risk is the high potential for explosion. |
| Class E | Electrical Equipment (Thiết bị điện) | Fires involving energized electrical equipment, including server rooms, computers, switchboards, and wiring. Non-conductive agents must be used. |
(Phân loại thiết bị chữa cháy tại Công ty Chuẩn A)
At Standard A Company, we provide the two most versatile and effective fire suppression solutions for modern enterprises: Dry Powder and Carbon Dioxide ($CO_2$) extinguishers. Understanding the structural and functional differences between these tools is the key to protecting your high-value assets.
Construction (Cấu tạo): Features a reinforced steel shell, a discharge nozzle, a flexible hose, and a pressure gauge. The gauge is the primary identifier for this type.
Operating Principle (Nguyên lý): It utilizes a propellant gas (typically Nitrogen - $N_2$) to discharge a dry chemical powder. This powder blankets the burning material, creating a physical barrier that isolates Oxygen ($O_2$) from the fuel, effectively smothering the fire.
Operating Principle (Nguyên lý): The $CO_2$ is stored under high pressure in liquid form. When discharged, it undergoes rapid expansion into a gas, dropping to an extremely low temperature of approximately -79°C. It works by displacing Oxygen and rapidly cooling the fuel source.
Best Use (Ứng dụng tốt nhất): Ideal for Class E (Electrical) fires as $CO_2$ is non-conductive and leaves no residue, protecting sensitive electronic boards and server equipment.
At Standard A Company, we train our personnel according to the elite international P.A.S.S. standard. This 4-step process is engineered for maximum efficiency, empowering any individual to act as a decisive first responder during a fire emergency.
Action: Hold the extinguisher upright. Use one hand to stabilize the neck and the other to firmly pull out the safety pin, breaking the tamper seal.
Standard A Pro-Tip: Do not squeeze the discharge lever while pulling the pin; the pressure on the lever will jam the pin, making it impossible to remove under stress.
Action: Point the nozzle or hose at the BASE of the fire—the actual source of the fuel.
Standard A Instruction: Never aim at the flickering flames above. To maximize the agent's effectiveness and maintain personal safety, stand back 2 to 3 meters from the fire.
Action: Firmly squeeze the lever to discharge the extinguishing agent (Dry Chemical Powder or $CO_2$ Gas).
Technique: Use a slow, deliberate, and continuous squeeze. Releasing the lever will stop the flow, so maintain pressure until the fire is suppre
Action: Sweep the nozzle from side to side across the base of the fire. As the flames recede, move closer while continuing the sweeping motion.
Survival Insight: Watch the area carefully even after the fire appears out. Be prepared to repeat the process if re-ignition occurs.(1).png)
STANDARD A CONSTRUCTION INVESTMENT JOINT STOCK COMPANY(CÔNG TY CP ĐẦU TƯ XÂY DỰNG CÔNG TRÌNH CHUẨN A)
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