This part of IEC 60793 establishes uniform requirements for measuring the macrobending loss of single-mode fibres (category B) at 1550 nm or 1625 nm, category A1 multimode fibres at 850 nm or 1300 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.The standard gives two methods for measuring macrobending sensitivity:• Method A - Fibre Winding, pertains to category B single-mode fibres and category A1 multimode fibres.• Method B - Quarter Circle Bends, pertains to category A3 and A4 multimode fibres.For both of these methods, the optical power is measured
DS/EN 60793-1-47:2009 history
2009DS/EN 60793-1-47:2009 Optical fibres - Part 1-47: Measurement methods and test procedures - Macrobending loss