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IEC 61788-4:2007
Superconductivity - Part 4: Residual resistance ratio measurement - Residual resistance ratio of Nb-Ti composite superconductors
| Fecha edición: |
2011-07-11
Anulada
|
|---|---|
| Fecha cancelación: | 2011-07-11 |
| Idiomas disponibles: | Inglés |
| Resumen: | This part of IEC 61788 covers a test method for the determination of the residual resistance ratio (RRR) of a composite superconductor comprised of Nb-Ti filaments and Cu, Cu-Ni or Cu/Cu-Ni matrix. This method is intended for use with superconductors that have a monolithic structure with rectangular or round cross-section, RRR less than 350, and cross-sectional area less than 3 mm2. All measurements are done without an applied magnetic field.
This second edition cancels and replaces the first edition published in 2001. It constitutes a technical revision. The main revisions are the replacement of "accuracy" by "uncertainty" and a change in Figure 1, where the relationship between temperature and voltage is changed to the relationship between temperature and resistance. |
| ICS: | 29.050 - Superconductividad y materiales conductores, 17.220.20 - Medición de magnitudes eléctricas y magnéticas |
| CTN: | TC 90 - 1285 |
|
Anulaciones Normas |
Anula a IEC 61788-4:2001 Es anulada por IEC 61788-4:2011 |










