What are the common causes of fires caused by aging wires in lighting electrical ready boards?

The common causes of fires caused by aging wires in lighting electrical ready boards are as follows:

Decreased insulation performance: After prolonged use, the insulation layer of the wire may lose its original insulation performance due to aging. This can easily cause short circuits between wires or between wires and grounding bodies, resulting in high temperatures and arcs, which can lead to fires.

Poor contact: After the wire ages, its connection points may become loose or corroded, leading to poor contact. Poor contact can generate resistance heat, and when the heat accumulates to a certain extent, it may ignite surrounding insulation materials or combustibles, causing a fire.

Overload operation: As the wire ages, its current carrying capacity may decrease. If the current in the circuit exceeds the safe current carrying capacity of the wire at this time, it will cause the wire to overheat, accelerate the aging process, and may cause a fire.

Environmental factors: Lighting electrical ready boards are usually installed inside buildings in complex environments. If the wires are exposed to harsh environments such as humidity, high temperature, and corrosive gases for a long time, it will accelerate their aging process and increase the risk of fire.

Therefore, regular inspection and maintenance of the wires in the lighting electrical ready board are crucial to prevent the occurrence of fires.