Optical fiber cables are an indispensable material for the construction of optical communication infrastructure. As far as optical cables are concerned, there are many classifications, such as power optical cables, buried optical cables, mining optical cables, flame-retardant optical cables, underwater optical cables, etc. The performance parameters are also different. When choosing an optical cable, we need to choose the correct optical cable manufacturer. The following points should be paid attention to:
1. Optical fiber
Regular fiber optic cable manufacturers generally use A-level fiber cores from large manufacturers. Some low-priced and inferior optical cables usually use C-level, D-level fibers and smuggled fibers from unknown sources. Discoloration, and multimode fiber is often mixed with single-mode fiber, and generally small factories lack the necessary testing equipment, so they cannot judge the quality of the fiber. Because the naked eye cannot distinguish such optical fibers, the common problems encountered during construction are: the bandwidth is very narrow, the transmission distance is short;
2. Reinforcing steel wire
The steel wire of the outdoor optical cable of the regular manufacturer is phosphating-treated, and the surface is gray. This kind of steel wire does not increase hydrogen loss after being cabled, does not rust, and has high strength. Inferior optical cables are generally replaced by thin iron wires or aluminum wires. The identification method is easy. The appearance is white and can be bent at will when pinched in the hand. The optical cable produced by such steel wire has a large hydrogen loss, and after a long time, the two ends of the optical fiber box will rust and break.
3. Outer sheath
The PE sheath of the outdoor optical cable should be made of high-quality black polyethylene. After the cable is formed, the sheath is flat, bright, uniform in thickness, and free of small bubbles. The outer sheath of inferior optical cables is generally produced with recycled materials, which can save a lot of cost. The outer sheath of such optical cables is not smooth. Because there are many impurities in the raw materials, the outer sheath of the optical cable made has many very small pits, which will crack and enter after a long time. water.
GL Fiber as a 19 years industrial experience fiber optic cable maufacturer in China, we can supply all types of fiber optic cable for aerial, duct, direct-buried application, fiber count from 1-576 cores is available, and we can support OEM & ODM service, if you have any techincal support or project budget, pls feel free to contact online!
