When the plastic electrical distribution box is burned, the possibility of electric shock is greater due to the damage of the insulation, so the main switch of the power supply should be switched off immediately, and the dry powder fire extinguisher can be used. The main reasons for the fire in the electric meter box are as follows: Electricity overload: When the capacity of the meter box is insufficient or high-power electrical appliances are used, or multiple electrical appliances are turned on at the same time, the equipment is prone to overload. Most circuit breaker problems are due to loose electrical connections. When a circuit breaker trips, it releases a cocked spring mechanism that separates the electrical contacts. Circuit breakers have two means of tripping: (1) An electromagnet that trips almost instantaneously when the. In 2025, the National Fire Protection Association (NFPA) reports that electrical distribution systems are still a leading cause of residential fires, contributing to over 44,000 home fires annually across the UK and Ireland. Many of these stem from outdated or poorly maintained fuse boxes (source). Loose connections, home owners doing their own work, or getting handy men to do their work.