What is the standard gauge for high tension ignition wire covered with heavy plastic insulation?

The standard gauge for high tension ignition wire, which is designed to handle the high voltage associated with ignition systems while being insulated effectively, is often #14. This gauge strikes a balance between being thick enough to carry the necessary current without introducing excessive resistance, while also being flexible for installation purposes. The insulation must be heavy to withstand the heat and potential wear due to high voltage spikes, which is characteristic of high tension applications. Thicker gauges, such as #10 or #12, would provide lower resistance but might be less flexible, making them less ideal for ignition wire applications. On the other hand, #16 could be too thin to safely handle the demands of high voltage without risk of overheating or failure, making #14 the preferred choice in this context.