Norm

NEN-EN-IEC 61788-5:2013 en

Supergeleiding - Deel 5: Bepaling van de volumeverhouding tussen de matrix en de supergeleider - Volumeverhouding tussen koper en supergeleider in Cu/Nb-Ti-composietsupergeleidende draad

135,85

Over deze norm

Status Definitief
Aantal pagina's 28
Commissie Beleidscommissie Elektriciteitsvoorziening
Gepubliceerd op 01-09-2013
Taal Engels
This part of IEC 61788 covers a test method for the determination of copper to superconductor volume ratio of Cu/Nb-Ti composite superconducting wires. This test method and the alternate method in Annex A are intended for use with Cu/Nb-Ti composite superconducting wires with a cross-sectional area of 0,1 mm2 to 3 mm2, a diameter of the Nb-Ti filament(s) of 2 μm to 200 μm, and a copper to superconductor volume ratio of 0,5 or more. The Cu/Nb-Ti composite test conductor discussed in this method has a monolithic structure with a round or rectangular cross-section. This test method is carried out by dissolving the copper with nitric acid. Deviations from this test method that are allowed for routine tests and other specific restrictions are given in this standard. Cu/Nb-Ti composite superconducting wires beyond the limits in the cross-sectional area, the filament diameter and the copper to superconductor volume ratio could be measured with this present method with an anticipated reduction of uncertainty. Other, more specialized, specimen test geometries may be more appropriate for conductors beyond the limits and have been omitted from this present standard for simplicity and to retain low uncertainty. The test method given in this standard is expected to apply to other superconducting composite wires after some appropriate modifications.

Details

ICS-code 17.200.20
17.220.20
29.050
Nederlandse titel Supergeleiding - Deel 5: Bepaling van de volumeverhouding tussen de matrix en de supergeleider - Volumeverhouding tussen koper en supergeleider in Cu/Nb-Ti-composietsupergeleidende draad
Engelse titel Superconductivity - Part 5: Matrix to superconductor volume ratio measurement - Copper to superconductor volume ratio of Cu/Nb-Ti composite superconducting wires
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