IEC TR 61788-20-2014 PDF

Full title and description

IEC TR 61788-20:2014 — Superconductivity - Part 20: Superconducting wires - Categories of practical superconducting wires - General characteristics and guidance. This technical report provides high-level, application-oriented guidance on practical superconducting wires (their categories, general characteristics, product parameters, quality assurance and guidance for specification and procurement) so that designers, buyers and users can describe, compare and select appropriate wire types for devices and systems.

Abstract

This Technical Report classifies practical superconducting wires (e.g., Nb-Ti, Nb3Sn, MgB2, BSCCO, REBCO and related composite forms), describes their typical structural components (matrix, stabilizer, reinforcement, insulation), and gives guidance on product parameters, appearance, joints, quality assurance, test methods, inspection and shipping labelling. It is intended as guidance rather than prescriptive manufacturing specifications.

General information

• Status: Technical Report (TR).
• Publication date: 2014-07-28 (Edition 1.0).
• Publisher: International Electrotechnical Commission (IEC), TC 90 Superconductivity.
• ICS / categories: 17.220.20; 29.050.
• Edition / version: 1.0 (2014).
• Number of pages: 19 (PDF edition).

Bibliographic and publication details as recorded by IEC (publication type: Technical Report; stability date indicated on IEC records).

Scope

Addresses practical superconducting wires available in commercially continuous lengths for device construction (single-core, multi-filamentary, composite and coated-conductor forms). Excludes conductors assembled from multiple wires (cables) and prototype/test-only wire forms. Focus is on characteristics that differ from ordinary copper/aluminium conductors and on information useful for specification, procurement and application.

Key topics and requirements

• Classification of practical superconducting wire categories and classes (Nb-Ti, Nb3Sn, MgB2, BSCCO, REBCO, etc.).
• Descriptions of structural components: superconducting filaments/cores, matrix materials, stabilizers, reinforcement and insulation.
• Recommended product parameters and technical data fields for specification and procurement (technical sheet guidance).
• Guidance on joints, appearance, continuity, commercially available lengths and limits of scope.
• Quality assurance, inspection, test-methods overview and shipping/label requirements to support reliable commercial use.
• Informative annexes with structural characteristics, classes of wires and a technical-information annex to assist specification.

Typical use and users

Reference for engineers, procurement specialists, materials scientists, manufacturers and test laboratories involved in superconducting magnet design, medical MRI and NMR systems, particle accelerators, research facilities, power applications (e.g., fault current limiters, cables), and any project specifying or buying practical superconducting wire. Used to create technical data sheets, procurement contracts and acceptance checks where non-prescriptive guidance on wire characteristics is required.

Related standards

Part of the IEC 61788 series (multiple parts addressing superconducting materials, mechanical tests and test methods). This TR is cross-referenced by related IEC 61788 parts and has been adapted into national documents (for example adopted/modified in national standards development work). For a list of related parts see the IEC 61788 series and TC 90 publications.

Keywords

superconductivity; superconducting wire; Nb-Ti; Nb3Sn; MgB2; BSCCO; REBCO; composite conductor; stabilizer; insulation; technical report; IEC 61788.

FAQ

Q: What is this standard?

A: IEC TR 61788-20:2014 is a Technical Report from IEC TC 90 that gives general characteristics and guidance for practical superconducting wires (classification, typical structural elements and specification guidance).

Q: What does it cover?

A: It covers categories and classes of commercially practical superconducting wires, their general structural characteristics, recommended product parameters for specification, practical issues such as joints and appearance, and guidance on quality assurance, testing, inspection and shipping labelling. It is informational rather than a prescriptive manufacturing standard.

Q: Who typically uses it?

A: Engineers, designers, procurement officers, materials specialists, test laboratories and manufacturers working with superconducting magnets, medical imaging, research accelerators, power applications and other systems that require selection or specification of superconducting wire.

Q: Is it current or superseded?

A: The document is IEC TR 61788-20, published in 2014 (Edition 1.0). IEC records show a stability date in the IEC catalogue; users should check IEC publication metadata for reconfirmation, amendment or withdrawal decisions around the recorded stability date.

Q: Is it part of a series?

A: Yes. It is one part of the IEC 61788 series on superconductivity and relates to other parts that cover materials, mechanical tests and specific test methods for superconducting conductors.

Q: What are the key keywords?

A: Superconducting wire, Nb-Ti, Nb3Sn, MgB2, BSCCO, REBCO, composite conductor, stabilizer, insulation, specification guidance, IEC 61788.