sparkover

sparkover

[′spärk‚ō·vər]
(electricity)
References in periodicals archive ?
However, when a current spike greater than the GDT's sparkover value is applied across its two terminals, the gas inside a Bourns GDT quickly ionizes, called "arc mode", transitioning the GDT from very high resistance to a virtual short circuit.
In general, the gap between the electrode and collector determines the maximum permissible electric field be fore occurrence of sparkover.