arc quenching medium. Definitions. plwordnet-defs. [noun] An arc quenching medium is a substance, such as air or transformer oil, used in circuit-breakers to extinguish eletrical arcs.
Thereof, what can cause an electrical arc?
An arc flash happens when electric current flows through an air gap between conductors. Accidents caused by touching a test probe to the wrong surface or slipped tool are the most common cause of an arcing fault. Arc flashes can also be caused by: Sparks due to breaks or gaps in the insulation.
What is arc interruption?
Arc interruption is a process where you interrupt path of arc with the purpose to extinguish it.for arc interupption we use different process like air blast, High air pressure turbulence and arc splitting to increase the resistance of arc ,so that current reduces up that that much level where it is ceases to flow.but
What happens during an arc fault?
An arc-fault occurs when loose or corroded connections make intermittent contact and causes sparking or arcing between the connections. This translates into heat, which will break down the insulation of the wire and can be the trigger for an electrical fire.