中心为PBT松套管，保护一次涂覆光纤。两根平行钢丝加强件内置护套两侧，涂塑钢带纵包后聚乙烯粘接外护套，张力性能优良。钢带与缆心之间设有阻水层，具有良好的抗渗水能力。
Central loose tube is PBT, the protection of a coated fiber, two parallel steel wire reinforcement built-in sheath on both sides, after polyethylene adhesive coated strip longitudinal outer sheath layer is arranged between the belt and the cable core, which has good anti seepage ability.
束管中心式设计，光纤在光缆的抗侧向力中所受的影响减至最小。光缆芯数较小，外径小，重量轻，施工方便。
The central beam tube optical cable has the advantages of small number of optical cable core, small outer diameter, light weight and convenient construction.
光纤余长控制稳定成缆后，光纤的附加衰减近乎于零，色散值无变化，环境性能优良。
After the optical fiber remaining length is controlled and stabilized, the additional attenuation of optical fiber is almost zero, the dispersion value is unchanged, and the environmental performance is excellent.
合理的设计及精确的控制松套管中光纤的余长，使光缆具有优良的抗拉性能和温度性能。
Reasonable design and accurate control of the residual length of fiber in the loose casing, so that the cable has excellent tensile properties and temperature performance.
两根平行钢丝保证光缆的抗拉强度。
Two parallel wires ensure the tensile strength of the cable.
双面涂塑铝带挡潮，并具有抗侧压作用。
Double coated aluminium tide, and has lateral pressure.
物理特性 Physical properties
额定温度: -40~70℃
Rated temperature: -40~70℃
敷设方式: 架空、管道、直埋。
Laying methods: overhead, pipe, direct burial.
适用范围：长途通信、局间通信，较适合南方地区。
Scope of application: long distance communication and inter office communication.
包装方式: 木轴。
<
