Reduce loss of fiber than in solution,

fiber door ( FTTH技术) Is inevitable in the development of the information age, network interconnection is the future of the digital age. With the development of optical fiber communication network construction and operation, face and solve the problem of optical fiber not succeeded loss will in optical fiber communication engineering design, construction, maintenance, greatly improve and optimize the optical fiber communication network transmission performance. Solution for the fiber not succeeded loss: ( 1) In the engineering survey design, construction, should choose the best routing and wiring installation. （ 2) Form, select a high quality construction team, to ensure the construction quality, it is critical that any negligence in construction may cause fiber loss increased. （ 3) In the design, construction and maintenance, and actively take effective optical fiber cable line 'four control' ( Lightning protection, electricity, corrosion prevention, prevent mechanical damage) , strengthen the protection work. （ 4) Using stents carry cable tray cloth cable, don't put the cable tray down after a similar from spool to cloth cable, don't let the cable under torsion. Fiber cloth, should be a unified command, strengthen the contact, to adopt scientific and reasonable drawing method. Their speed should not be too fast; Continuous protection length shoulds not be too long, if necessary, should adopt '8' the word, from the middle to the two head cloth. At the turning the place that could damage the cable must be careful and take the necessary protection. Meet in downtown cloth cable need temporary pan fiber, such as using disk remain eight, don't let the cable under torsion. （ 5) Fiber cloth, must pay attention to allow the load and the limitation of the bending radius, cable laying, in the construction of the cable is forbidden to play small circle and bent, and twisted, prevent to play back button and surge phenomenon. Traction is not more than 80% of the fiber optic cable allows, the instantaneous maximum traction force does not exceed 100%, traction should add in the fiber reinforcement, pay special attention to not yank and kink occur. Turn cable bending radius should not less than 15 ~ 20 times of cable diameter. （ 6) Don't use inferior, especially has bending deformation heat shrinkable casing, the casing during hot shrinkage internal can produce stress, increase the loss on the optical fiber. Carrying and storing casing, pay attention to clean, don't let the foreign body into the casing. （ 7) When in operation, it will be decided based on the size of the holding plate stripping length, stripping longer as far as possible, to make the fiber leisurely coiled within closed ( Disk remain length of 60-100 cm) 。 Should attach importance to optical fiber after welding of foster ( Pan fiber optical fiber and fixed) , pan fiber, the greater the radius of circle and arc, the greater the loss of the entire line is smaller, so be sure to keep a certain radius ( R≥40毫米) , avoid unnecessary losses, some fiber, the key lies in the asylum. In operation, the depth of the cable knife cut into the cable to hold good, don't put the pine casing flattening optical fiber stress. With qualified sub materials and in accordance with the specifications and operating requirements, the correct encapsulation, the installation of connector box. （ 8) Engine rooms neat and clean as far as possible, the tail fiber there should be a circle around the belt protection, use a line or separate to the tail fiber, with tail between fiber or other attachment between cross winding, and try not to take the tail fiber ( Even the temporary use of) Where can be stepped on foot. Cable terminal lines to avoid jumping in go in right Angle, especially applied plastic tape will not jump line become a right Angle, or fiber loss caused by long term affected by stress. Jump line should go when turning curve, bending radius should not less than 40 mm. Cloth to ensure the jump line in no stress, no pressure, to avoid the jumper wire long-term stress fatigue. Optical fiber into port operation ( ODF) Fiber bundle is too tight, don't will end. （ 9) Strengthen the daily maintenance of optical cable lines and technical maintenance work.