At what voltage can static charge ignite gasoline fumes?

The ignition of gasoline fumes by static electricity occurs at surprisingly low voltages, often around 1,000 volts or even lower, depending on various factors such as humidity and the nature of the materials involved. However, in this context, the voltage threshold for ignition is generally acknowledged to be closer to 1,500 volts.

At 1,500 volts, the electrostatic discharge is strong enough to create a spark that can ignite flammable vapors. This particular value is significant because it accounts for conditions that maximize the likelihood of ignition. While 1,200 and other lower voltages might not be effective in every scenario, 1,500 volts represents a more widely accepted threshold for causing ignition under typical circumstances.

Understanding this voltage level is crucial for safety in environments where gasoline and other volatile substances are present, highlighting the importance of controlling static electricity to prevent accidents.