Which term describes a flashover of electric current through the air between conductors or to ground?

• A. Arc flash
• B. Ground fault
• C. Electrical short
• D. Arc fault

Answer: (A)

An arc flash is the rapid, energetic discharge that happens when current jumps through air between conductors or to ground. That flashover through air is the defining moment of an arcing event, producing the intense heat, light, and pressure hazards safety programs aim to control. A ground fault describes current leaking to earth through an unintended path, not the actual flash of energy. An electrical short is a direct, low-resistance connection causing high current, but it doesn’t specifically name the flash of energy across an air gap. An arc fault is the fault condition that creates arcing, whereas the arc flash is the resulting energy release. So, the flashover described is arc flash.