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Homepage>BS EN 61788-3:2006 Superconductivity Critical current measurement. DC critical current of Ag- and/or Ag alloy-sheathed Bi-2212 and Bi-2223 oxide superconductors
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sklademVydáno: 2006-09-29
BS EN 61788-3:2006 Superconductivity Critical current measurement. DC critical current of Ag- and/or Ag alloy-sheathed Bi-2212 and Bi-2223 oxide superconductors

BS EN 61788-3:2006

Superconductivity Critical current measurement. DC critical current of Ag- and/or Ag alloy-sheathed Bi-2212 and Bi-2223 oxide superconductors

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Označení normy:BS EN 61788-3:2006
Počet stran:26
Vydáno:2006-09-29
ISBN:0 580 49146 3
Status:Standard
DESCRIPTION

BS EN 61788-3:2006


This standard BS EN 61788-3:2006 Superconductivity is classified in these ICS categories:
  • 17.220.20 Measurement of electrical and magnetic quantities
  • 29.050 Superconductivity and conducting materials
This part of IEC 61788 covers a test method for the determination of the dc critical current of short and straight Ag- and/or Ag alloy-sheathed Bi-2212 and Bi-2223 oxide superconductors that have a monolithic structure and a shape of round wire or flat or square tape containing mono- or multicores of oxides. This method is intended for use with superconductors that have critical currents less than 500 A and n-values larger than 5. The test is carried out with and without an applying external magnetic field. For all tests in a magnetic field, the magnetic field is perpendicular to the length of the specimen. In the test of a tape specimen in a magnetic field, the magnetic field is parallel or perpendicular to the wider tape surface (or one surface if square). The test specimen is immersed either in a liquid helium bath or a liquid nitrogen bath during testing. Deviations from this test method that are allowed for routine tests and other specific restrictions are given in this standard.