BS EN IEC 60793-1-47:2018

What is BS EN IEC 60793‑1‑47 - Optical fibre microbending loss measurement about? 

IEC 60793 series discusses standards for optical fibres. BS EN IEC 60793‑1‑47 focuses on measurement methods and test procedures for transmission and optical characteristics. 

BS EN IEC 60793‑1‑47 establishes uniform requirements for measuring the macrobending loss of single-mode fibres (class B) at 1 550 nm or 1 625 nm, category A1 multimode fibres at 850 nm or 1 300 nm, and category A3 and A4 multimode fibres at 650 nm, 850 nm or 1300 nm, thereby assisting in the inspection of fibres and cables for commercial purposes. 

BS EN IEC 60793‑1‑47 gives two methods for measuring macrobending sensitivity of optical fibre, for both methods, the macrobending loss can be measured utilizing general fibre attenuation techniques: 

• Method A – Fibre winding, pertains to class B single-mode fibres and category A1 multimode fibres 
• Method B – Quarter circle bends, pertains to category A3 and A4 multimode fibres. 

Who is BS EN IEC 60793‑1‑47 - Optical fibre microbending loss measurement for? 

BS EN IEC 60793‑1‑47 on Optical fibre microbending loss measurement is useful for:   

• Manufacturers of optical fibre 
• Telecommunications companies   
• Internet service providers  
• Design engineers  
• Quality control personnel 
• Test providers for optical fibre 

Why should you use BS EN IEC 60793‑1‑47 - Optical fibre microbending loss measurement?  

Ensuring the quality of your optical fibres involves checking them for tensile strength. This ensures that they can withstand the punishments of weather and time. BS EN IEC 60793‑1‑47 establishes uniform requirements for microbending loss measurement in optical fibre. 

BS EN IEC 60793‑1‑47 establishes the test setup which is designed to measure the optical signal response through the FUT under different controlled bent conditions. 

BS EN IEC 60793‑1‑47 describes arrangement suitable for use when carrying out mechanical or environmental tests in a laboratory or factory. The arrangement will provide monitoring for optical transmittance with high resolution and good stability over the time and temperature changes given in the relevant product specification. 

BS EN IEC 60793‑1‑47 guidelines ensure the development of new fibre optic components and systems and years of reliable fibre performance in the field. 

What’s changed since the last update? 

BS EN IEC 60793‑1‑47:2018 supersedes BS EN 60793‑1‑47:2009, which is withdrawn. BS EN IEC 60793‑1‑47:2018 includes some technical changes with respect to BS EN 60793‑1‑47:2009. These include: 

• Former Annex A has been renumbered to Annex D 
• Introduction of new Annex A on the transmitted power monitoring technique and introduction of Annex B on the cut-back technique 
• Introduction of Annex C on the requirements for the optical source characteristics of A1 multimode measurement and introduction of Annex E on parallel plate (2-point) macrobend loss approximation