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download between 0-24 hoursReleased: 1987-03-30
IEC 60897:1987
Methods for the determination of the lightning breakdown voltage of insulating liquids
Méthodes de détermination de la tension de claquage au choc de foudre des liquides isolants
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| Standard number: | IEC 60897:1987 |
| Released: | 1987-03-30 |
| Language: | English/French - Bilingual |
DESCRIPTION
IEC 60897:1987
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.