Which of the following practices can reduce the risk of electrical fires?

Regular maintenance of electrical systems is vital for reducing the risk of electrical fires. This practice ensures that all wiring, outlets, and appliances are functioning properly and are free from damage or degradation that could lead to overheating or short circuits. Routine checks can identify issues such as frayed wires, overloaded circuits, and faulty connections, which are common causes of electrical fires. By investing time and resources into maintenance, potential hazards can be addressed before they escalate into serious safety concerns.

On the other hand, the other practices are detrimental to fire safety. Excessive use of extension cords can lead to overheating and overloads, while keeping flammable materials near electrical equipment increases the risk of ignition. Ignoring signs of wear on appliances can result in similar hazards and is a significant oversight in ensuring electrical safety. Thus, regular maintenance stands out as a proactive approach to prevent electrical fires.