This part of IEC 61788 specifies a test method for determining the DC critical current of short
RE (rare earth)-Ba-Cu-O (REBCO) composite superconductor specimens that have a shape of
straight flat tape. This document applies to test specimens shorter than 300 mm and having a
rectangular cross section with an area of 0,03 mm2 to 7,2 mm2, which corresponds to tapes
with width ranging from 1,0 mm to 12,0 mm and thickness from 0,03 mm to 0,6 mm.
This method is intended for use with superconduc...
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IEC 61788-26:2020 specifies a test method for determining the DC critical current of short RE (rare earth)-Ba-Cu-O (REBCO) composite superconductor specimens that have a shape of straight flat tape. This document applies to test specimens shorter than 300 mm and having a rectangular cross section with an area of 0,03 mm2 to 7,2 mm2, which corresponds to tapes with width ranging from 1,0 mm to 12,0 mm and thickness from 0,03 mm to 0,6 mm.
This method is intended for use with superconductor speci...
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IEC 61788-7 describes measurement of the surface resistance (Rs) ofsuperconductors at microwave frequencies by the standard two-resonator method. The objectof measurement is the temperature dependence of Rs at the resonant frequency.The applicable measurement range of Rs for this method is as follows:- Frequency: 8 GHz < f < 30 GHz- Measurement resolution: 0,01 mΩ at 10 GHzThe Rs data at the measured frequency, and that scaled to 10 GHz, assuming the f 2 rule forcomparison, is reported.

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IEC 61788-4 specifies a test method for the determination of the residual resistanceratio (RRR) of Nb-Ti and Nb3Sn composite superconductors with Cu, Cu-Ni, Cu/Cu-Ni and Almatrix in a strain-free condition and zero external magnetic field. This method is intended foruse with superconductor specimens that have a monolithic structure with rectangular or roundcross-section, RRR value less than 350, and cross-sectional area less than 3 mm2. In the caseof Nb3Sn, the specimens have received a reaction...view more

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IEC 61788-7:2020 is available as IEC 61788-7:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61788-7:2020 describes measurement of the surface resistance (Rs) of superconductors at microwave frequencies by the standard two-resonator method. The object of measurement is the temperature dependence of Rs at the resonant frequency. The applicable measurement range of Rs for this method is a...
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IEC 61788-4:2020 is available as IEC 61788-4:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61788-4:2020 specifies a test method for the determination of the residual resistance ratio (RRR) of Nb-Ti and Nb3Sn composite superconductors with Cu, Cu-Ni, Cu/Cu-Ni and Al matrix in a strain-free condition and zero external magnetic field. This method is intended for use with superconductor ...
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This International Standard specifies terms and definitions, specification and qualification of 2G HTS joining
procedure. A welding procedure specification (WPS) is needed to provide a basis for planning joining
operations and for quality control during joining. Joining is considered as a special process in the terminology
of standards for quality systems. Standards for quality systems usually require that special processes be
carried out in accordance with written procedure specifications. This...
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This International Standard specifies the requirements for the qualification for welding and testing personnel of micro-joining of 2G HTS to fulfil the ISO 17279-1 and ISO 17279-3 requirements.

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This part of IEC 61788 specifies the test method and procedures for testing tensile mechanical
properties of REBCO superconductive composite tapes at room temperature. This test is used
to measure the modulus of elasticity and 0,2 % proof strength. The values for elastic limit,
fracture strength and percentage elongation after fracture serve only as a reference. This
document applies to samples having a rectangular cross-section with an area of 0,12 mm2 to
6,0 mm2 (corresponding to the tape...
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IEC 61788-25:2018 specifies the test method and procedures for testing tensile mechanical properties of REBCO superconductive composite tapes at room temperature. This test is used to measure the modulus of elasticity and 0,2 % proof strength. The values for elastic limit, fracture strength and percentage elongation after fracture serve only as a reference. This document applies to samples having a rectangular cross-section with an area of 0,12 mm2 to 6,0 mm2 (corresponding to the tapes with wid...view more

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This part of IEC 61788 addresses a test method for the determination of the residual resistance
ratio (RRR), rRRR , of cavity-grade niobium. This method is intended for high-purity niobium
grades with 15 < rRRR < 600. The test method should be valid for specimens with rectangular or
round cross-section, cross-sectional area greater than 1 mm2 but less than 20 mm2, and a
length not less than 10 nor more than 25 times the width or diameter.

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      31 pages
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This part of IEC 61788 describes a test method for determining the retained critical current
after double bending at room temperature of short and straight Ag- and/or Ag alloy-sheathed
Bi-2223 superconducting wires that have the shape of a flat or square tape containing monoor
multicores of oxides. The wires can be laminated with copper alloy, stainless steel or Ni
alloy tapes.
The test method is intended for use with superconductors that have a critical current less than
300 A and an n-va...
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IEC 61788-25:2018 specifies the test method and procedures for testing tensile mechanical properties of REBCO superconductive composite tapes at room temperature. This test is used to measure the modulus of elasticity and 0,2 % proof strength. The values for elastic limit, fracture strength and percentage elongation after fracture serve only as a reference. This document applies to samples having a rectangular cross-section with an area of 0,12 mm2 to 6,0 mm2 (corresponding to the tapes with wid...view more

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IEC 61788-24:2018 describes a test method for determining the retained critical current after double bending at room temperature of short and straight Ag- and/or Ag alloy-sheathed Bi-2223 superconducting wires that have the shape of a flat or square tape containing mono- or multicores of oxides. The wires can be laminated with copper alloy, stainless steel or Ni alloy tapes. The test method is intended for use with superconductors that have a critical current less than 300 A and an n-value large...view more

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IEC 61788-24:2018 describes a test method for determining the retained critical current after double bending at room temperature of short and straight Ag- and/or Ag alloy-sheathed Bi-2223 superconducting wires that have the shape of a flat or square tape containing mono- or multicores of oxides. The wires can be laminated with copper alloy, stainless steel or Ni alloy tapes.
The test method is intended for use with superconductors that have a critical current less than 300 A and an n-value larg...
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IEC 61788-23:2018 addresses a test method for the determination of the residual resistance ratio (RRR) of cavity-grade niobium. The test method should be valid for specimens with rectangular or round cross-section, cross-sectional area greater than 1 mm2 but less than 20 mm2, and a length not less than 10 nor more than 25 times the width or diameter.

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      56 pages
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This part of IEC 61788-22-1 describes general items concerning the specifications for
superconducting sensors and detectors, which are the basis for specifications given in other
parts of IEC 61788 for various types of sensors and detectors. The sensors and detectors
described are basically made of superconducting materials and depend on superconducting
phenomena or related phenomena. The objects to be measured (measurands) include
magnetic fields, electromagnetic waves, photons of various ...
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IEC 61788-22-1:2017(E) describes general items concerning the specifications for superconducting sensors and detectors, which are the basis for specifications given in other parts of IEC 61788 for various types of sensors and detectors. The sensors and detectors described are basically made of superconducting materials and depend on superconducting phenomena or related phenomena. The objects to be measured (measurands) include magnetic fields, electromagnetic waves, photons of various energies, ...view more

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IEC 61788-22-1:2017 describes general items concerning the specifications for superconducting sensors and detectors, which are the basis for specifications given in other parts of IEC 61788 for various types of sensors and detectors. The sensors and detectors described are basically made of superconducting materials and depend on superconducting phenomena or related phenomena. The objects to be measured (measurands) include magnetic fields, electromagnetic waves, photons of various energies, ele...view more

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This part of IEC 61788 specifies a test method for the determination of the residual resistance
ratio (RRR) of Nb-Ti and Nb3Sn composite superconductors with Cu, Cu-Ni, Cu/Cu-Ni and Al
matrix. This method is intended for use with superconductor specimens that have a monolithic
structure with rectangular or round cross-section, RRR value less than 350, and crosssectional
area less than 3 mm2. In the case of Nb3Sn, the specimens have received a
reaction heat-treatment.

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