Polymer Fibre
End emitting polymer fiber comes in two configurations - single unsheathed or sheathed strands of 0.75mm, 1mm, 1.5mm or 2mm diameter or as multiple strands of 0.75mm fiber in a low smoke sheathing.
The single strands of fiber give ‘starry’ points of light and do not usually require termination while the multi-stranded fiber is normally terminated in the same manner as end emitting glass. Multi-stranded polymer end emitting fiber is usually specified where very long tail lengths of above 394in (10000mm) are required, as there is less color shift when compared with glass over long distances. As polymer fiber is made up of much thicker fibers it is less flexible than glass and cannot be randomised (see above) to the same extent.
Our end lit polymer fibre can be used in temperatures between -55°C and +70°C or 60°C in highly humid locations. Sideglow fibre can normally be used between 0°C and +70°C. All polymer fibres degrade with age, though the speed of degradation will depend on many environmental considerations, so there is no sure fire way to predict the useful working life of these fibres. In favourable conditions polymer fibre has been found to last more than 10 years, though this cannot be guaranteed.
