When you find that the working meter box (ready board) is on fire, remember not to act without knowledge of fire fighting to avoid unnecessary injury. If the meter box (ready board) is on fire, do not panic. Stay away from the meter to avoid injury. Then cut off the power supply at the first time and use dry powder or gas extinguisher to extinguish the fire. If the power supply is not cut off, do not directly splash water to extinguish the fire, in order to prevent electric shock or electrical explosion from injuring people and causing secondary injury.