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The cable type is longitudinally water-blocked and intended for combined indoor as well as outdoor use (in ducts). The design can incorporate 4 to 96 fibres in loose tubes. The individually coloured fibres are tubed in groups of maximum 12, and placed into in a slotted core profile of polyethylene, which is extruded onto a dielectric fibre reinforced strength member (FRP). The cable type is longitudinal water-blocked through the use of water-swellable materials and sheathed with halogen-free flame-retardant polymeric compound. The cable type fulfils the fire propagation requirements stated in IEC 60332-1.