Why should soda-acid and foam-type extinguishers not be used in fighting electrical fires?

Explanation

### Step-by-Step Solution:

1. **Understanding Fire Extinguishers**: Fire extinguishers are categorized based on the type of fire they are designed to combat. Soda-acid and foam-type extinguishers are commonly used for various types of fires, but they are not suitable for electrical fires.

2. **Composition of Soda-Acid and Foam Extinguishers**: Soda-acid extinguishers typically contain sodium bicarbonate dissolved in water along with sulfuric acid. Foam extinguishers also contain water as a key component in their chemical formulation.

3. **Water as a Conductor of Electricity**: Water is known to be a good conductor of electricity. When water is used in fire extinguishers, it poses a risk of conducting electricity if it comes into contact with live electrical equipment.

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