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介绍一种新型的架空地线复合光缆 (OPGW) ,其光纤单元是一种具有PBT(聚对苯二甲酸丁二醇酯 )内衬管粘合不锈钢管的松套型结构。这种光纤单元的外径尺寸比其他类型的金属管要小 ,无疑对于OPGW的结构设计及满足用户所提出的技术参数 (光缆的外径、机械强度及短路电流容量 )要求将会带来一定的好处。这种OPGW经大量的试验达到了设计要求 ,用户使用反映良好。
A new type of overhead ground wire composite optical fiber cable (OPGW) is introduced. Its optical fiber unit is a loose-sleeve type structure with PBT (Polybutylene Terephthalate) lined stainless steel tube. The outer diameter of this optical fiber unit is smaller than other types of metal tube, no doubt for the OPGW structural design and meet the user’s proposed technical parameters (optical cable diameter, mechanical strength and short circuit current capacity requirements will bring certain the benefits of. This kind of OPGW reaches the design requirement through a large number of tests, the user’s usage reflects well.