What causes arcing?

Arcing occurs when an electric current jumps between two conductive points, typically due to a breakdown of insulation or a gap in the circuit. This can happen when the voltage exceeds the dielectric strength of the surrounding material, allowing electrons to leap across the air or other medium. Factors such as wear and tear on electrical components, contamination, or environmental conditions can contribute to arcing. It often results in heat, light, and can potentially cause damage or fire hazards.