Cover IEC 60897:1987

IEC 60897:1987

Methods for the determination of the lightning breakdown voltage of insulating liquids

Ausgabedatum: 1987-03
Edition: 1.0
Sprache: EN-FR - zweisprachig englisch/französisch
Seitenzahl: 27 VDE-Artnr.: 203864


Describes two test methods, A and B, for assessing the electric strength of insulating liquids in a divergent field when subjected to standard lightning impulses. Method A is based on a step procedure intended to provide an estimate of impulse breakdown voltage under specific conditions. Method B is a statistical test designed to check a hypothesis about the impulse breakdown probability of an insulating liquid at a given voltage level.