FlexRibbon™ whitepaper | Prysmian Group

Why FLEXRIBBON™ 1728? • FLEXRIBBON is rolled up into compact 288-fibre subunits for easier routing and better protection for the overall fibre unit. • Offering an ultra-compact design for greatest fibre density in a 24.9 mm/ 0.98-inch diameter cable, fitting in a 31.75 mm/1.25-inch duct/conduit. • Significantly smaller diameter and lighter weight cables allow easier installation and use of smaller ducts. • Using a central strength member improves flexibility and allows bending in any direction. This significantly improves installation performance over designs with strength members embedded in the jacket. • 12 fibre ribbons are compatible with mass fusion heat strippers, cleavers, and splice machines. • Uses standard 250 ųm coated bend-insensitive fibre. • Extremely flexible ribbons can be rolled up forhigh-packing-densities, or laid flat for ribbon splicing. Performance • Uses full dry water blocking technology in the tubes and cable core for easy closure preparation and termination. • Tested in accordance with ICEA 640 and with relevant EIA/TIA-455 series FOTPs for fibre optic cables. Nominal design parameters Fibre count 1,728 Tube positions 6 Number of ribbons/tube 24 Cable OD (mm) 24.9 (inches) 0.98 Weight (kg/km) 379 (lb/kft) 254 Maximum length (m) 4,834 (ft) 15,860 Duct size/% fill 1.25”/78% Fibre/subunit 6 units � 288f/unit