BS EN IEC 60793-1-34:2021 Optical Fibres Measurement Methods and Test Procedures. Fibre Curl

Welcome to the comprehensive guide on the BS EN IEC 60793-1-34:2021 standard, a pivotal document in the realm of optical fibres. This standard is essential for professionals and organizations involved in the design, testing, and implementation of optical fibre technologies. Released on March 26, 2021, this document provides detailed methodologies and procedures for measuring fibre curl, a critical parameter in the performance and reliability of optical fibres.

Overview of the Standard

The BS EN IEC 60793-1-34:2021 standard is a part of a series of standards that focus on the measurement methods and test procedures for optical fibres. This particular document addresses the measurement of fibre curl, which is a crucial aspect in ensuring the quality and efficiency of optical fibre systems. Fibre curl can affect the alignment and coupling efficiency of fibres, making its accurate measurement vital for optimal performance.

Key Features

• Standard Number: BS EN IEC 60793-1-34:2021
• Pages: 24
• Release Date: March 26, 2021
• ISBN: 978 0 539 04653 3
• Status: Standard

Importance of Fibre Curl Measurement

Fibre curl refers to the inherent curvature present in optical fibres, which can arise during the manufacturing process. This curvature can lead to challenges in fibre handling and alignment, potentially impacting the performance of optical networks. Accurate measurement of fibre curl is essential for:

• Ensuring Efficient Signal Transmission: Minimizing losses and maintaining signal integrity across long distances.
• Improving Fibre Handling: Facilitating easier installation and maintenance of fibre optic systems.
• Enhancing System Reliability: Reducing the risk of misalignment and associated performance issues.

Detailed Methodologies and Procedures

The BS EN IEC 60793-1-34:2021 standard provides a comprehensive set of methodologies and procedures for accurately measuring fibre curl. These procedures are designed to ensure consistency and reliability in measurement, allowing for precise assessment of fibre quality. The document outlines the necessary equipment, setup, and step-by-step instructions to perform these measurements effectively.

Why Choose This Standard?

Adopting the BS EN IEC 60793-1-34:2021 standard offers numerous benefits for organizations involved in optical fibre technology:

• Industry Compliance: Aligns with international standards, ensuring compatibility and interoperability across global markets.
• Quality Assurance: Provides a benchmark for assessing fibre quality, aiding in the production of high-performance optical systems.
• Technical Expertise: Leverages the latest research and technological advancements in fibre measurement techniques.

Who Should Use This Standard?

This standard is indispensable for a wide range of professionals and organizations, including:

• Optical Fibre Manufacturers: To ensure product quality and compliance with industry standards.
• Telecommunications Companies: For the deployment and maintenance of reliable fibre optic networks.
• Research and Development Teams: Engaged in the innovation and improvement of optical fibre technologies.
• Quality Assurance Professionals: Responsible for testing and validating fibre optic components.

Conclusion

The BS EN IEC 60793-1-34:2021 standard is a critical resource for anyone involved in the optical fibre industry. By providing detailed measurement methods and test procedures for fibre curl, it ensures that optical fibres meet the highest standards of quality and performance. Whether you are a manufacturer, a telecommunications provider, or a researcher, this standard is an invaluable tool in your arsenal, helping you to achieve excellence in optical fibre technology.

BS EN IEC 60793-1-34:2021

This standard BS EN IEC 60793-1-34:2021 Optical fibres is classified in these ICS categories:

• 29.260.01 Electrical equipment for working in special conditions in general
• 13.260 Protection against electric shock. Live working
• 29.240.20 Power transmission and distribution lines
• 33.180.10 Fibres and cables

IEC 60793-1-34:2021 is available as IEC 60793-1-34:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60793-1-34:2021 establishes uniform requirements for the mechanical characteristic: fibre curl or latent curvature in uncoated optical fibres, i.e. a specified length of the fibre has been stripped from coating. Fibre curl has been identified as an important parameter for minimizing the splice loss of optical fibres when using passive alignment fusion splicers or active alignment mass fusion splicers.Two methods are recognized for the measurement of fibre curl, in uncoated optical fibres: - method A: side view microscopy; - method B: laser beam scattering. Both methods measure the radius of curvature of an uncoated fibre by determining the amount of deflection that occurs as an unsupported fibre end is rotated about the fibre's axis. Method A uses visual or digital video methods to determine the deflection of the fibre while method B uses a line sensor to measure the maximum deflection of one laser beam relative to a reference laser beam. By measuring the deflection behaviour of the fibre as it is rotated about its axis and understanding the geometry of the measuring device, the fibre's radius of curvature can be calculated from simple circular models, the derivation of which are given in Annex C. Both methods are applicable to type B optical fibres as described in IEC 60793 (all parts). Method A is the reference test method, used to resolve disputes. This third edition cancels and replaces the second edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - modification of several derivation equations for laser scattering; - change of angular increment from 10° to 30° to 10° to 45°; - change of Annex B from informative to normative.