How To Prevent Fires
Class A — Ordinary combustibles:
Keep storage and working areas free of trash Place oily rags in covered containers.
Maintain Good Housekeeping.
Class B — Flammable liquids or gases:
Don't refuel gasoline-powered equipment in a confined space, especially in the presence of an open flame such as a candle, furnace or heater.
Don't refuel gasoline-powered equipment while it's hot.
Keep flammable liquids stored in tightly closed, self-closing, spill-proof containers. Pour from storage drums only what you need.
Store flammable liquids away from spark-producing sources.
Use flammable liquids only in well-ventilated areas.
Class C — Electrical equipment:
Look for old wiring, worn insulation and broken electrical fittings. Report any hazardous condition to your supervisor.
Prevent motors from overheating by keeping them clean and in good working order. A spark from a rough-running motor can ignite the oil and dust in it.
Utility lights should always have some type of wire guard over them. Heat from an uncovered light bulb can easily ignite ordinary combustibles.
Don't misuse fuses. Never install a fuse rated higher than specified for the circuit.
Investigate any appliance or electrical equipment that smells strange. Unusual odors can be the first sign of fire.
Don't overload wall outlets. Two outlets should have not more than two plugs.
Class D — Flammable metals:
Flammable metals such as magnesium and titanium generally take a very hot heat source to ignite; however, once ignited are difficult to extinguish as the burning reaction produces sufficient oxygen to support combustion, even under water.
In some cases, covering the burning metal with sand can help contain the heat and sparks from the reaction. Dry powder extinguisher/TRULY DRY sand in a bucket or box) is quite effective.