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DIN EN IEC 61788-23 VDE 0390-23:2025-07

Superconductivity

Part 23: Residual resistance ratio measurement – Residual resistance ratio of cavity-grade Nb superconductors

(IEC 61788-23:2024); German version EN IEC 61788-23:2024
Class/Status: Standard, valid
Released: 2025-07
VDE Art. No.: 0300186

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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 150 < rRRR< 600.

Replacement for:
DIN EN IEC 61788-23 VDE 0390-23:2023-06

This Document is related to the following Topics (in bold):

29	ELECTRICAL ENGINEERING
29.020	Electrical engineering in general
29.030	Magnetic materials
29.035	Insulating materials
29.040	Insulating fluids
29.050	Superconductivity and conducting materials
29.060	Electrical wires and cables
29.080	Insulation
29.100	Components for electrical equipment
29.120	Electrical accessories
29.130	Switchgear and controlgear
29.140	Lamps and related equipment
29.160	Rotating machinery
29.180	Transformers. Reactors
29.200	Rectifiers. Converters. Stabilized power supply
29.220	Galvanic cells and batteries
29.240	Power transmission and distribution networks
29.260	Electrical equipment for working in special conditions
29.280	Electric traction equipment

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DIN EN IEC 61788-23 VDE 0390-23:2025-07

Superconductivity

Part 23: Residual resistance ratio measurement – Residual resistance ratio of cavity-grade Nb superconductors

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