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发明公开
CN107561663A 一种适用于极寒条件下的OPGW光缆及其生产方法 无效 - 驳回 转让

一种适用于极寒条件下的OPGW光缆及其生产方法
摘要：
本发明公开了一种适用于极寒条件下的OPGW光缆，包括光纤单元、内层铝包钢线和外层铝包钢线，所述光纤单元由适用于-70°C低温的耐极寒G652D光纤、适用于-70°C的耐低温纤膏以及不锈钢管组成，所述不锈钢管内安装有适用于-70°C低温的耐极寒G652D光纤，并均匀填充适用于-70°C的耐低温纤膏，所述光纤单元与内层铝包钢线绞合在一起形成OPGW光缆内层，光缆外层采用外层铝包钢线进行绞合，形成双层铠装的适用于极寒条件下的OPGW光缆。该OPGW光缆可长期在-70°C的极寒环境下工作，光纤衰减与室温相比无明显变化，可满足长距离通信的要求。
摘要（英）：

The invention discloses an OPGW (optical fiber composite overhead ground wire) applicable to extremely cold conditions. The OPGW comprises optical fiber units, inner aluminum-covered steel wires and outer aluminum-covered steel wires, wherein every optical fiber unit comprises extreme-cold-resistant G652D optical fibers applicable to -70 DEG C, low-temperature-resistant fiber paste applicable to -70 DEG C and a stainless steel tube, the extreme-cold-resistant G652D optical fibers applicable to -70 DEG C are mounted in the stainless steel tube, and the stainless steel tube is evenly filled withthe low-temperature-resistant fiber paste applicable to -70 DEG C. The optical fiber units and the inner aluminum-covered steel wires are stranded together to form an inner layer of the OPGW, and anouter layer thereof is stranded by the outer aluminum-covered steel wires so as to form the double-armored OPGW applicable to the extremely cold conditions. The OPGW can be used for an extremely coldenvironment at -70 DEG C for a long time, and optical attenuation of the OPGW at -70 DEG C has no obvious change as compared with that of the OPGW at room temperature, so that the long-distance communication requirements can be met.

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