{"id":567395,"date":"2024-11-05T19:04:22","date_gmt":"2024-11-05T19:04:22","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/iec-60793-1-472009\/"},"modified":"2024-11-05T19:04:22","modified_gmt":"2024-11-05T19:04:22","slug":"iec-60793-1-472009","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/iec\/iec-60793-1-472009\/","title":{"rendered":"IEC 60793-1-47:2009"},"content":{"rendered":"

IEC 60793-1-47:2009 establishes uniform requirements for measuring the macrobending loss of single-mode fibres (category 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. The standard gives two methods for measuring macrobending sensitivity:<\/p>\n