Is the spark plug continuously working during engine startup?

[Talia]

During engine startup, the spark plug is continuously working. Its working principle involves generating an arc between the electrodes through voltage to ignite the air-fuel mixture in the cylinder, thereby maintaining the normal operation of the engine. The function of the spark plug is to discharge the high-voltage pulse electricity delivered by the high-voltage wire, break down the air between the two electrodes of the spark plug, and generate an electric spark to ignite the air-fuel mixture in the cylinder. Automotive spark plugs are categorized into: 1. Standard spark plugs: The insulator skirt is slightly recessed into the shell end face, and the side electrode is outside the shell end face; 2. Insulator-protruding spark plugs: The insulator skirt is longer, protruding beyond the shell end face; 3. Fine-electrode spark plugs: The electrodes are thin, characterized by strong sparks and better ignition capability.