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Using a portable CO₂ fire extinguisher on electrical fires requires some precautions due to the presence of live electricity. Here's how you should approach using a CO₂ extinguisher on electrical fires:
Safety First: Ensure your safety and the safety of others by assessing the situation. If the fire is small and contained, and you can do so without endangering yourself, proceed cautiously.
Cut Off Power (If Possible): If it's safe to do so and without putting yourself in danger, turn off the power source to the electrical equipment involved in the fire. This step helps reduce the risk of electric shock and may make it safer to approach the fire.
Use the Proper Extinguisher: CO₂ fire extinguishers are safe to use on electrical fires because they do not conduct electricity. This means you can safely direct the CO₂ stream toward the base of the fire without risk of electric shock.
Maintain Safe Distance: Stand at a safe distance from the fire, typically 6 to 8 feet away. Avoid standing on wet surfaces or touching metal objects to minimize the risk of electric shock.
Aim and Discharge: Aim the nozzle of the CO₂ extinguisher at the base of the fire, where the electrical components are located. Squeeze the operating lever to discharge the CO₂ gas in short bursts, sweeping across the base of the flames.
Monitor the Fire: After extinguishing the fire, monitor the area to ensure it does not reignite. If necessary, repeat the process or use additional extinguishers until the fire is completely out.
Post-Fire Inspection: Once the fire is out and it's safe to do so, inspect the electrical equipment for damage. Even if the fire was small, there may be internal damage or wiring issues that need attention before restoring power.
Professional Evaluation: It's advisable to have a qualified electrician inspect the affected equipment and wiring before restoring power. Electrical fires can cause hidden damage that may pose a risk if not addressed properly.
Remember, safety is paramount when dealing with electrical fires. If you're unsure about using a fire extinguisher or if the fire is too large, evacuate the area and call emergency services for assistance.
