TUBE BUNDLE FOR OPTICAL FIBRES, AND METHOD OF MANUFACTURING SUCH BUNDLE

摘要

A tube assembly ( 202 ) for installation of one or more optical fibres is disclosed. The assembly comprises a plurality of elongate flexible first tubes ( 204 ) for receiving one or more optical fibres. A first layer ( 206 ) is arranged outwardly of the tubes, and a second layer ( 220 ) is arranged radially inwardly of the first layer to substantially fill a void between at least the radially outermost first tubes and the first layer.