Standard

NEK IEC 60897:1987

Published

Corrigendums and amendments are bought separately.

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Abstract

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.

Document information

  • Standard from NEK
  • Published:
  • Edition: 1.0
  • Version: 1
  • Document type: NAT
  • Pages
  • ICS 17.220.99
  • ICS 29.040.10
  • National Committee TC 10