Standard

NEK EN 61788-6:2008

Tilbaketrukket

Merknad: Denne standarden har en ny utgave: NEK EN 61788-6:2011

Rettelser og tillegg kjøpes separat.

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Omfang

This part of IEC 61788 covers a test method detailing the tensile test procedures to be carried out on Cu/Nb-Ti superconductive composite wires at room temperature. This test is used to measure modulus of elasticity, 0,2 % proof strength of the composite due to yielding of the copper component, and tensile strength. The value for percentage elongation after fracture and the second type of 0,2 % proof strength due to yielding of the Nb-Ti component serves only as a reference (see Clauses A.1 and A.2). The sample covered by this test procedure has a round or rectangular cross-section with an area of 0,15 mm2 to 2 mm2 and a copper to superconductor volume ratio of 1,0 to 8,0 and without the insulating coating. This second edition cancels and replaces the first edition published in 2000. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - the minimum distance between grips was changed from 100 mm to 60 mm; - accuracy and precision statement were converted to uncertainty statements.

Dokumentinformasjon

  • Standard fra NEK
  • Publisert:
  • Tilbaketrukket:
  • Utgave: 2008-05
  • Versjon: 1
  • Varetype: NAT
  • ICS 29.050
  • ICS 77.040.10
  • National Committee NEK/NK90

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