Preventing wire melting relies on mitigating the two primary causes of overheating: overcurrent and high resistance. The phenomenon of electrical wire overheating creates numerous fire and explosion risks and reflects non-compliance with technical standards in electrical systems. Electrical boxes—whether found in basements, attics, or walls—are designed to safely manage your home's electricity. These fires rarely start with sparks or explosions. Home - Projects - How do you solve problems with overheated fuses in the distribution box? How do you. This enclosure houses the circuit breakers designed to interrupt current flow when a fault or overload occurs, protecting the entire wiring system.