corona discharge

• Phénomène par lequel le fluide (par exemple l'air) entourant un conducteur électrique s'ionise, produisant une lueur visible ou un sifflement audible, se produisant généralement sous des tensions élevées.

A phenomenon in which a fluid (such as air) surrounding a conductor becomes ionized, producing a visible glow or audible hiss, typically occurring at high voltages.

1. Electrical phenomenonC2formal

   A partial electrical discharge that occurs when a high voltage conductor is surrounded by a fluid (like air), causing ionization and a faint glow.

   Décharge par effet couronne

   • The high-voltage power lines exhibited a visible corona discharge on the humid night.
   • Engineers study corona discharge to prevent energy loss in transmission lines.
   • The blue glow around the antenna was caused by corona discharge.