IEC 61788-6-ed.3.0

Detail information

Designation: IEC 61788-6-ed.3.0

Publication date: 11/07/2011

Pages: 66

Country: International technical standard

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Anotation

IEC 61788-6:2011 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. 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 third edition cancels and replaces the second edition published in 2008. It constitutes a technical revision which adds a new Annex C including specific examples of uncertainty estimation related to mechanical tests. La CEI 61788-6:2011 specifie une methode dessai detaillant les modes operatoires dessai de traction a executer sur des fils composites supraconducteurs de Cu/Nb-Ti a temperature ambiante. Cet essai est utilise pour mesurer le module delasticite, la charge depreuve a 0,2 % du composite due a la deformation du composant de cuivre et a la resistance a la traction. La valeur du pourcentage dallongement apres fracture et le second type de charge depreuve a 0,2 % due a la deformation du composant en Nb-Ti ne servent que de reference. Lechantillon specifie par le present mode operatoire dessai a une section transversale circulaire ou rectangulaire avec une surface de 0,15 mm2 a 2 mm2 et un rapport volumique entre le cuivre et le supraconducteur de 1,0 a 8,0 et sans revetement isolant. Cette troisieme edition annule et remplace la deuxieme edition parue en 2008. Elle constitue une revision technique avec lajout dune Annexe C decrivant un exemple specifique destimation dincertitude concernant les essais mecaniques.