Final answer:
Water should never be used to extinguish an electrical fire. Dry-cleaning solvent and fire extinguishers as well as fire extinguisher systems with foaming plastics are also not recommended for electrical fires.
Step-by-step explanation:
An electrical fire is different from other types of fires because it involves live electrical currents. The most important thing to remember when dealing with an electrical fire is to never use water to extinguish it. Water is a conductor of electricity, meaning it can actually fuel the fire and put you at risk of electrocution.
Instead, non-conductive methods should be used to extinguish electrical fires. One method that is not recommended is using dry-cleaning solvent and fire extinguishers. These were once used to extinguish electrical fires but are now considered ineffective and unsafe in such situations.
In addition, fire extinguisher systems that release foaming plastics should also be avoided when it comes to electrical fires. While these types of extinguishers may be effective in certain situations, they can create a messy and potentially hazardous situation when used on electrical fires.