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flashover

flashover

1 9.8
A sudden electrical spark that jumps across an insulator or between wires
  • noun
  • /ˈflæʃˌoʊvər/
  • Specialized
translation icon : arco eléctrico
  • Engineers regularly inspect transformers to prevent flashover incidents.

Examples

  • During the experiment, a sudden flashover created a bright spark that startled everyone in the room.

  • A flashover can cause serious equipment damage in high-voltage power lines.

  • Insulation failures often lead to sudden flashovers during thunderstorms.

  • A flashover can occur when the voltage exceeds the insulator's breakdown strength.

  • During testing, we observed a flashover between the conductors.

  • The technician explained how a flashover can occur when the surface of an insulator becomes contaminated.

  • Safety measures are crucial to prevent a flashover from causing damage to electrical equipment.

Synonyms

spark
vsflashover
130 2.1

A small flash of fire or electricity

is a larger unintended release that occurs over insulators or between conductors
electrical discharge
vsflashover
  • Specialized
1 4.2

A sudden flow of electricity that makes a spark or flash

is the same release but happens unintentionally over insulators or between conductors
electric discharge
vsflashover
  • Specialized
1 5.2

A flow of electricity through a gas that makes light or a spark

is an unintended release over insulators or between conductors not the flow through gas

Antonyms

18 3.7

Protecting a place by adding material that reduces heat, sound, or electricity

Surface Forms

flashover singular
flashovers plural

Morphology

flashover = flash (semi-transparent) = over + flash

Formally a compound of 'flash' + 'over' so the parts are recognizable, but the precise electrical-engineering meaning is technical and not directly inferable by a general B1 learner. [Postprocessing: moved 'over' from base_words to prefix]

Etymology

The word flashover comes from flash 'a sudden bright light' and over 'across'. So, in electricity it means a sudden bright jump of electricity across something that should keep the electricity away.