guangxi tide cable news: several simple ways to identify the pros and cons of optical cable-非凡电子娱乐

skin: indoor optical cable is generally used poly ethylene or flame retardant poly vinyl, the appearance should be smooth, bright, flexible, easy to peel.

the poor quality of the optical cable sheath finish is not good, easy and inside the tight sleeve, aramid adhesion.

outdoor optical cable pe sheath should be of high quality black polyethylene, after the formation of cable skin smooth, bright, uniform thickness, no small bubbles.

the poor quality of the optical cable is usually made of recycled material, so it can save a lot of cost,

because there are a lot of impurities in the raw material, so that there are a lot of optical cable sheath very small pit wow, a long time on the cracking, water.

two, optical fiber: regular fiber optic cable manufacturers generally use a large class of the core of the enterprise, some low quality fiber optic cable is usually used c class, d class fiber optic fiber and unknown smuggling,

the optical fiber due to complicated sources, the factory has a long time, often damp discoloration, and often mixed with the multimode fiber in single-mode fiber, and the general lack of testing equipment to small factory,

can not judge the quality of optical fiber. because of the naked eye can not distinguish the optical fiber, the construction of the problem is often encountered: the bandwidth is very narrow, short transmission distance,

can not and pigtail docking; lack of fiber flexibility, when a broken fiber disc.

three, strengthen the steel wire: the normal manufacturer of outdoor fiber optic cable is phosphating treatment, the surface is gray, so the steel wire into the cable does not increase the hydrogen loss,

no rust, high strength. poor quality fiber optic cable is usually replaced by fine wire or aluminum wire, the identification method is easy - the appearance of white, pinch in the hands can be bent freely.

with the production of such a large loss of fiber optic cable, a long time, the two ends of the optical fiber box will be rusty fracture.

four, steel armor: the formal production enterprises using double-sided brush anti rust coating longitudinal wrapped steel strip, the use of poor quality optical fiber is common, usually only one side of the rust treatment.

five, loose tube: loose tube cable with optical fiber should be used pbt materials, such as high casing strength, no deformation, anti aging.

poor quality fiber optic cable is generally used to do pvc casing, so that the outer diameter of the casing is very thin, with a pinch of hand on the flat, a bit like we drink a straw.

six, fiber paste: outdoor cables within the fiber paste can prevent fiber oxidation, because water vapor into the damp, inferior fiber fiber paste with a few, seriously affected the life of fiber.

seven, also known as: aramid kevlar, is a kind of high intensity chemical fiber, at present in the industrial, military helmet, bullet proof vest is the material production.

currently the world's only dupont and holland akesu production, the price is about sanshiduowanyi tons. indoor optical fiber cables and power overhead optical cables (adss) are made of aramid fiber as reinforcement,

because of aramid high cost, poor indoor cable diameter generally done very carefully, so you can use a few shares of fang guanlai cost savings.

this kind of optical cable is easy to be broken when it passes through the pipe. adss cable because it is based on the span, the wind speed per second to determine the use of aramid fiber cable, generally do not dare jerry.