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蝶形光缆皮线光缆安装工艺哪位了解？

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蝶形光缆皮线光缆安装工艺哪位了解？

浏览：65次 | 提问时间： 08-03 05:53

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人穷 08-03 05:54

1、蝶形光缆分室内、室(内)外两种，两者价格差异较大，室外型价格约为室内型价格的2倍，在做具体设计方案时应考虑价格因素，一般情况下，室外仍采用普通光缆(GYTA-G　652D)，室内用室内型蝶形光缆，两者通过分纤箱或接头盒过渡　　2、蝶形光缆有较小的曲率半径，重量轻、相对抗折弯性能较好且易固定、在86终端盒内易端接等特点，　　3、蝶形入户光缆有非金属加强构件、金属加强构件两种形式，考虑到防雷、防强电干扰因素，室内应采用非金属加强构件蝶形光缆。　　4、室内型蝶形光缆有1芯、2芯、3芯、4芯等规格，住宅用户接入蝶形入户光缆宜选用单芯缆；商务用户接入蝶形光缆可按2-4芯缆设计。　　FTTX工程中大规模使用皮线光缆，主要采用了两种接续方式：一种是以冷接子为主的光缆冷接技术（物理接续），一种是以熔接机为工具的热熔技术。　　冷接技术　　冷接技术：光纤冷接子是两根尾纤对接时使用的，它内部的主要部件就是一个精密的v型槽，在两根尾纤拨纤之后利用冷接子来实现两根尾纤的对接。*作起来更简单快速，比用熔接机熔接省时间。　　从表面上看，冷接*作简单快速，比熔接机热熔节省时间，但是的冷接技术还主要应用在光缆通信中断后应急应用。　　冷接技术存在明显缺陷：　　（1）冷接损耗大。由于采用物理接续，两根光纤完全靠V型槽和匹配液来实现接续，这样的损耗明显要大于热熔连接点。在FTTX工程中，虽然对于线路的损耗要求没有干线要求严格，但是大损耗点就是潜在的故障点。　　（2）使用寿命短，维护成本高。冷接技术中，匹配液的作用很重要。引用运营商客户统计的*，进口的匹配液，一般的寿命会在3年，而国产的匹配液，寿命只有2年。这样，增加的维护的成本。而且一个冷接子的成本一般会在50元（可拆卸重复利用，但是拆卸后再用的精准度大大降低，所以冷接子标称是可重复，实际是在施工过程中都是只用一次的），实际使用维护成本高。　　热熔技术　　热熔技术的优点：　　（1）、熔接损耗小。两根光纤采用热熔技术，按照干线标准来进行的熔接，大大降低了熔接损耗。　　（2）、使用寿命长，维护成本低。由于热熔标准按照干线施工进行要求，一般熔接点的寿命都会和普通光缆的寿命相差不多，不存在单个点的寿命问题。

女追男那就范 08-03 06:03

蝶形缆与尾纤熔接，尾纤插配线面板；   蝶形缆用快速连接器端接后插配线面板。   用预连接蝶形光缆。皮线光缆为标准8字型结构；两个平行加强芯，中间为光纤；自承式皮线光缆在普通皮线光缆的结构上增加了一根粗钢丝吊线。

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