Which of the following actions should be avoided to ensure fire safety?

Overloading electrical outlets is a crucial action to avoid in order to ensure fire safety. When outlets are overloaded, they can draw more current than they are designed to handle. This excess current can lead to overheating of the wiring, which significantly increases the risk of electrical fires. Overloaded outlets are a common cause of fires in homes and buildings, as they can cause insulation to melt, leading to shorts and potentially igniting surrounding materials.

In contrast, practices such as unplugging appliances when not in use, performing regular maintenance on heating systems, and keeping fire extinguishers accessible are all proactive strategies that enhance fire safety. They help to reduce the risk of electrical faults, ensure that heating equipment operates safely, and facilitate quick response to potential fires. Thus, avoiding the overload of electrical outlets is essential for maintaining a safe environment against fire hazards.