BS EN IEC 61788-27:2025: Superconductivity Twist Pitch Measurement

Introducing the BS EN IEC 61788-27:2025, a comprehensive standard dedicated to the precise measurement of twist pitch in practical superconducting wires. This essential document is a must-have for professionals and researchers working with Nb-Ti/Cu and Nb-Sn/Cu composite superconductors, providing detailed methodologies and guidelines to ensure accurate and reliable measurements.

Key Features and Benefits

The BS EN IEC 61788-27:2025 standard is meticulously crafted to cater to the needs of the superconductivity industry. Here are some of the standout features and benefits:

• Comprehensive Coverage: Spanning over 42 pages, this standard offers an in-depth exploration of twist pitch measurement techniques, ensuring you have all the information you need at your fingertips.
• Latest Release: Released on April 16, 2025, this document reflects the most current practices and technological advancements in the field of superconductivity.
• ISBN: 978 0 539 20620 3 - Easily reference and cite this standard in your research and professional work.
• Standard Status: As a recognized standard, it provides authoritative guidance and is widely accepted in the industry.

Why Twist Pitch Measurement Matters

Twist pitch measurement is a critical aspect of superconducting wire production and application. The twist pitch, or the distance over which the wire makes a complete 360-degree turn, significantly influences the wire's performance, including its mechanical stability and electromagnetic properties. Accurate measurement of this parameter is crucial for optimizing the design and functionality of superconducting systems.

Applications in Industry

The BS EN IEC 61788-27:2025 standard is indispensable for a variety of applications, including:

• Magnetic Resonance Imaging (MRI): Ensuring the reliability and efficiency of superconducting magnets used in MRI machines.
• Particle Accelerators: Enhancing the performance of superconducting magnets in particle accelerators, crucial for cutting-edge research in physics.
• Power Grids: Supporting the development of superconducting cables for power transmission, which offer reduced energy losses and increased capacity.

Technical Insights

The standard provides detailed methodologies for measuring the twist pitch of Nb-Ti/Cu and Nb-Sn/Cu composite superconductors. These materials are widely used in the industry due to their excellent superconducting properties and mechanical strength. The document outlines the necessary equipment, procedures, and calculations required to achieve precise measurements, ensuring consistency and accuracy across different applications.

Who Should Use This Standard?

This standard is essential for:

• Researchers and Scientists: Engaged in the study and development of superconducting materials and technologies.
• Engineers and Technicians: Involved in the design, production, and quality control of superconducting wires and systems.
• Quality Assurance Professionals: Responsible for ensuring that superconducting products meet industry standards and specifications.

Conclusion

The BS EN IEC 61788-27:2025 standard is an invaluable resource for anyone involved in the field of superconductivity. By providing clear and detailed guidelines for twist pitch measurement, it helps ensure the optimal performance and reliability of superconducting wires. Whether you are a researcher, engineer, or quality assurance professional, this standard will support your efforts to achieve excellence in your work.

Stay ahead in the rapidly evolving field of superconductivity with the authoritative guidance of the BS EN IEC 61788-27:2025 standard. Equip yourself with the knowledge and tools necessary to excel in your projects and contribute to the advancement of superconducting technologies.

BS EN IEC 61788-27:2025

This standard BS EN IEC 61788-27:2025 Superconductivity is classified in these ICS categories:

• 29.050 Superconductivity and conducting materials

IEC 61788-27:2025 specifies a test method for the twist pitch measurement of Nb‑Ti/Cu and Nb‑Sn/Cu composite superconductors by an untwisting method. The test method is applicable to Nb‑Ti/Cu and Nb‑Sn/Cu composite superconducting wires with monolithic structures, which have either a round cross section with a diameter ranging from 0,2 mm to 2 mm or a rectangular cross section that is equivalent in area to the round cross‑sectional wires. These wires possess a filament diameter ranging from 6 µm to 200 µm, a twist pitch between 5 mm and 50 mm, and a matrix of copper or copper alloy. This document uses nitric acid to remove the matrix (copper or copper alloy), so the surface of the composite superconducting wire can be plated with a material that is dissolvable by nitric acid. Though uncertainty can increase, the method can apply to Nb‑Ti/Cu or Nb‑Sn/Cu composite superconducting wires when the parameters of cross-sectional area, filament diameter and twist pitch are out of the limit. The test method specified in this document is expected to apply to other types of composite superconducting wires after some appropriate modifications.