A central tube type optical fibre micro-cable

专利名称：A central tube type optical fibre micro-cable发明人：Ruan, Yunfang,Chen, Feng,Lu, Xingxing,He,

Jun,Xiong, Zhuang

申请号：EP12186874.9申请日：20121001公开号：EP2584390B1公开日：20180919

摘要：The present invention relates to a central tube type optical fibre micro-cablewith high optical fibre density including an outer sheath (4) and a polycarbonate loosetube (2) covered by the outer sheath (4). The outer sheath (4) includes a plurality ofcircumferentially spaced longitudinally extending grooves. During the fibre installationprocess, optical fibre bundles (e.g. 1) are inserted within the loose tube (2). Using thepolycarbonate loose tube (2) reduces known material retraction problems, improvesother mechanical properties and permits optical fibres to be blown along a longerdistance in a smaller size plastic tube. The longitudinal grooves of the outer sheath (4)assists in cable peeling, reduces the friction between the cable and the tube wall duringthe blowing process and improves airflow. The use of a material able to reduceelectrostatic absorption helps to reduce the electrostatic absorption and blowingresistance during blowing process, which increases the distance over which cables can beblown. The present invention also reduces the complexity of the production process,requires fewer tube material resources and saves overall cost.

申请人：YANGTZE OPTICAL FIBRE & CABLE JOINT STOCK LTD CO

地址：CN

国籍：CN

代理机构：Office Kirkpatrick

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