DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
Optical fibres - Part 1-47: Measurement methods and test procedures - Macrobending loss
Abstract
This part of IEC 60793 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 1 300 nm, thereby assisting in the inspection of fibres and cables for commercial purposes. In this document, the "curvature radius" is defined as the radius of the suitable circular shaped support (e.g. mandrel or guiding groove on a flat surface) on which the fibre can be bent. In addition, informative Annex D has been added to approximate bend loss for class B single-mode fibres across a broad wavelength range at various effective bends.
Begin
2025-05-06
Planned document number
DIN EN IEC 60793-1-47
Project number
02233119
