The answer to 'why is my electrical wiring sparking' is that there are several common causes, including loose connections, damaged wires, overloaded circuits, and moisture or water exposure. Sparking wires are a serious fire hazard and should be addressed immediately.
Loose connections can occur over time as wires become loose in their terminals or outlets. This allows electricity to arc and create sparks. Damaged wires, such as those with cracks, nicks, or worn insulation, can also lead to sparking. Overloading circuits by plugging in too many high-power devices can overheat wires and cause sparking. Finally, any moisture or water exposure in the wiring system can disrupt the electrical flow and lead to dangerous sparking.