What is the main material of the optical cable?

So what problems should be paid attention to in the process of transport and installation of optical cables? Optical cables are mainly composed of optical fibers (fine glass filaments such as hair) and plastic protective sleeves and plastic sheaths. There are no metals such as gold, silver, copper and aluminum in the optical cables. There is generally no recovery value. If it is not protected properly, it will cause great waste if it is damaged.

1. During the construction process, care should be taken that the bending radius of the optical cable must not be less than the construction regulations. The optical cable must not be subject to excessive bending.

2. The overhead optical fiber cables should be hauled through the pulleys. The overhead optical cables should avoid friction with buildings, trees and other facilities, and avoid damage to the cables by dragging the ground or rubbing against other sharp and hard objects. If necessary, install protective measures. Do not force the fiber cable to jump out of the pulley and forcibly haul it to prevent it from being flattened and damaged.

3, in the design of optical cable should try to avoid the search for easy buildings, if it can not be avoided, optical cable should take fire protection measures.

4, in the section of the cable laying construction comparison, if you need to turn the plate, the optical cable must follow the "8" disk. Make the cable completely twisted.

5, the selection of optical cable connector box must meet the YD/T814-1996 standard qualified connector box, to ensure that the radius of curvature of the optical fiber in the joint box is not less than 37.5MM, the remaining length of optical fiber in the joint box is not less than 1.6M, optical cable The reinforcing member is firmly fixed on the joint box, and no twisting occurs between the optical cable and the joint box. The joint box has excellent sealing performance and can prevent the entry of moisture.

6. Fiber optic cable trays equipped with optical cables should be rolled in the direction indicated by the side plate of the tray. The distance should not be too long. Generally it should not exceed 20 meters. When rolling, care should be taken to prevent obstacles from damaging the packaging plate.

7. Lifting equipment or special steps such as forklifts should be used when loading and unloading optical cables. It is forbidden that the optical cable trays should be rolled or thrown off directly from the vehicle.

8. It is forbidden to place or stack optical cable trays with optical cables. Anti-wood blocks must be installed in the cable trays inside the compartment.

9. The optical cable should not be repeatedly rewound so as to avoid the integrity of the internal structure of the optical cable. Before laying the optical cable, visual inspection, checking of the specification, type, quantity, test length, attenuation, etc. shall be carried out. The optical cable shall be attached to the protective plate of each optical cable. There is a product inspection certificate (which should be kept in a safe place for future inquiries). Be careful not to damage the cable when removing the cable guard.

High Speed Door

High speed shutter door is a rapid operating, anti-crash shutter door for indoor application . The most advantage of this door is that the opening/closing speed can reach to 0.6-1.8m/s, really fast action a lot than tranditional rollling shutter door. short opening and closing times reduce cooling loss, avoid airflow and enable a smooth operating procedure. They can also be designed in larger dimensions for the mining and aircraft industries.

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