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Used in aerial and duct access cabling
Installation in small bending environment
Suitable for the connection between indoor and outdoor
Ideal for duct application in FTTH project
Environmental protection- Low smoke, zero halogen and flame retardant sheath
Special low-bend-sensitivity fiber provides high bandwidth and excellent communication transmission property
Soft and flexible, good bending performance
The fiber optic cable consists of a bundle of glass threads (fiber core), each of which is capable of transmitting messages modulated onto light waves. featured with the following advantages compared with traditional copper cable: Fiber optic cables have a much greater bandwidth to carry data than copper cables. Fiber optic cables are less susceptible than copper cables to interference. Fiber optic cables are much thinner and lighter than copper wires.
This drop cable is designed for duct installation in FTTH project connecting. The optical fiber unit is positioned in the center. 2 parallel strength members are placed at two sides. The cable is with a jacket to become FTTH Drop Cable. Then FTTH Drop Cable is completed with waterproof tape, AL-plastic tape and outer jacket.
Transmission Characteristics:
| G.652 | G.655 | 50/125μm | 62.5/125μm | ||
| Attenuation (+20℃) | @850nm | ≤3.0 dB/km | ≤3.0 dB/km | ||
| @1300nm | ≤1.0 dB/km | ≤1.0 dB/km | |||
| @1310nm | ≤0.36 dB/km | ≤0.40 dB/km | |||
| @1550nm | ≤0.22 dB/km | ≤0.23dB/km | |||
| Bandwidth (Class A) | @850nm | ≥500 MHz·km | ≥200 MHz·km | ||
| @1300nm | ≥1000 MHz·km | ≥600 MHz·km | |||
| Numerical Aperture | 0.200±0.015NA | 0.275±0.015NA | |||
| Cable Cut-off Wavelengthλcc | ≤1260nm | ≤1480nm | |||
| Cable Count | Outside Diameter (mm) | Cable Weight (kg/km) | Tensile Load (N) | Crush Load (N/100mm) | Bend Radius (MM) | Storage Temperature | |||
| short term | long term | short term | long term | short term | long term | ||||
| 1 | 7.2 | 48 | 600 | 300 | 1000 | 300 | 30 | 15 | -20°C~+60°C |
| 2 | 7.2 | 48 | 600 | 300 | 1000 | 300 | 30 | 15 | -20°C~+60°C |
Note:
1. Only a part of Flat fiber optic cables are listed in the table. More can be produce as required .
2. Cables can be supplied with a range of single mode or multi mode fibers.
3. Specially designed Cable structure is available on request.
水钢金属科技是使熔融金属与铁基体反应而产生合金层，从而使基体和镀层二者相结合。水钢金属科技是先将钢铁制件进行酸洗，为了去除钢铁制件表面的氧化铁，酸洗后，通过氯化铵或氯化锌水溶液或氯化铵和氯化锌混合水溶液槽中进行清洗，然后送入热浸镀槽中。水钢金属科技具有镀层均匀，附着力强，使用寿命长等优点。
工业中应用最广泛的钢铁材料，在大气、海水、土壤及建筑材料等环境中使用时，均会发生不同程度的腐蚀。 据统计，全世界每年因腐蚀而损失的钢铁材料大约可占到其总产量的 1/3。 为了保证钢铁制品的正常使用，延长其使用寿命，钢铁的防腐蚀保护技术一直受到人们的普遍重视。
热浸镀锌是延缓钢铁材料环境腐蚀的最有效手段之一，它是将表面经清洗、 活化后的钢铁制品浸于熔融的锌液中，通过铁锌之间的反应和扩散，在钢铁制品表面镀覆附着性良好的锌合金镀层。 与其他金属防护方法相比，热浸镀锌工艺在镀层的物理屏障与电化学保护相结合的保护特性上，镀层与基体的结合强度上、镀层的致密性、耐久性、免维护性和经济性及其对制品形状与尺寸的适应性上，具有无可比拟的优势。 目前热浸镀锌产品主要有钢板、钢带、钢丝、钢管等，其中热浸镀锌钢板所占比例最大。长期以来，热浸镀锌工艺因其低廉的施镀成本，优良的保护特性和漂亮的外观而备受人们的青睐，广泛应用于汽车、建筑、家电、化工、机械、石油、冶金、轻工、交通、电力、航空和海洋工程等领域。
热浸镀锌（hot dipped galvanizing）的原理，简单的说即是将已清洗洁净的铁件，经由助镀剂的润湿作用，浸入锌浴中，使钢铁与熔融锌反应生成一合金化的皮膜。良好的热浸镀锌作业，应是各流程均在严格的管制下，彻底发挥该流程的功能。且若前一流程的操作不善，会造成后续流程的连锁不良反应，而大量增加作业成本或造成不良热浸镀锌产品。若前处理不良，则熔锌无法与钢铁正常完全反应，形成最完美的镀锌皮膜组织。若后处理不良，则破坏镀锌皮膜外观，降低商品价值等。
