BS EN 61788-5:2013 - Superconductivity. Matrix to superconductor volume ratio measurement. Copper to superconductor volume ratio of Cu/Nb-Ti composite superconducting wires

BS EN 61788-5:2013

Superconductivity. Matrix to superconductor volume ratio measurement. Copper to superconductor volume ratio of Cu/Nb-Ti composite superconducting wires

Status : Current   Published : September 2013

Format
PDF

Format
HARDCOPY



IEC 61788-5:2013 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 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 micrometers to 200 micrometers, 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. The copper to superconductor volume ratio of composite superconductors is used mainly to calculate the critical current density of superconducting wires. The test with the method given in this International Standard may be used to provide part of the information needed to determine the suitability of a specific superconductor. Moreover, this method is useful for quality control, acceptance or research testing if the precautions given in this standard are observed. This second edition cancels and replaces the first edition published in 2000. It constitutes a technical revision. The main revisions are the addition of two new annexes, "Uncertainty considerations" (Annex E) and "Uncertainty evaluation in test method of copper to superconductor volume ratio of Cu/Nb-Ti composite superconductors" (Annex F).




Standard NumberBS EN 61788-5:2013
TitleSuperconductivity. Matrix to superconductor volume ratio measurement. Copper to superconductor volume ratio of Cu/Nb-Ti composite superconducting wires
StatusCurrent
Publication Date30 September 2013
Normative References(Required to achieve compliance to this standard)IEC 60050-815
Informative References(Provided for Information)ISO/IEC Guide 99:2007, ISO/IEC Guide 98-3:2008, GUM 1995
ReplacesBS EN 61788-5:2001
International RelationshipsEN 1788-5 (IEC 61788-5:2013) A,IEC 61788-5:2013
DescriptorsTitanium, Superconductivity, Current measurement, Electric wires, Superconductors, Copper, Electric conductors, Niobium, Direct current, Electrical conductivity, Electric current
ICS17.220.20
29.050
Title in FrenchSupraconductivité. Mesure du rapport volumique matrice/supraconducteur. Rapport volumique cuivre/supraconducteur des fils en composite supraconducteur Cu/Nb-Ti
Title in GermanSupraleitfähigkeit. Messung des Verhältnisses von Matrixvolumen zu Supraleitervolumen. Verhältnis von Kupfervolumen zu Supraleitervolumen von Cu/Nb-Ti Verbundsupraleiterdrähten
CommitteeL/-/90
ISBN978 0 580 75668 9
PublisherBSI
FormatA4
DeliveryYes
Pages30
File Size674 KB
Price£182.00


 Your basket
Your basket is empty

Multi-user access to over 3,500 medical device standards, regulations, expert commentaries and other documents


BSOL

The faster, easier way to work with standards


Tracked Changes

Understand the changes made to a standard with our new Tracked Changes version


Develop a PAS

Develop a fast-track standardization document in 9-12 months