Standard

NEK EN 61857-1:2005

Tilbaketrukket

Merknad: Denne standarden har en ny utgave: NEK EN 61857-1:2009

Forhåndsvisning

Rettelser og tillegg kjøpes separat.

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Omfang

Specifies a general test procedure for the thermal evaluation and qualification of electrical insulation systems (EIS) and establishes a procedure that compares the performance of a candidate EIS to that of a reference EIS. This basic standard is applicable to existing or proposed EIS used in electrotechnical products with an input voltage of up to 1 000 V where the thermal factor is the dominating ageing factor. This second edition cancels and replaces the first edition published in 1998, and constitutes a technical revision to make this basic standard compatible with parts 21 and 22.

Dokumentinformasjon

  • Standard fra NEK
  • Publisert:
  • Tilbaketrukket:
  • Utgave: 1
  • Versjon: 1
  • Varetype: NAT
  • ICS 29.080.30
  • National Committee NEK/NK112

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