Tuesday 18 February 2020

The mechanical splicing process

Fiber preparation

The splicing process is almost the same for all types of mechanical splices. The first step is to peel, clean and cut the fibers to which the splicing will take place. You must peel the fiber coating to expose the necessary length of the bare fiber, clean the fiber with a suitable cloth, cut the fiber following the indications of the precision cutter you are using; If you use a precision cutter like the ones that come with the fusers, you will achieve more consistent splices and lower losses.

How to perform the mechanical splice

Place the first fiber in the mechanical joint. Most splices are designed to limit the depth at which the fiber is inserted through the length of bare fiber. Secure the fiber in place if the fibers are separated; Some splices secure both fibers at the same time. Repeat these steps for the second fiber.
You can optimize with a visual fault locator, which is a laser checking source, the losses of a
mechanical splice if the fiber ends to be spliced ?? can be seen. Gently remove one of the fibers,
rotate it slightly and reinsert it until the visible light is minimal, indicating the least loss.

How to make good splices

To constantly achieve splices with low losses, proper technique and maintenance of the equipment in good condition are needed. Of course, cleanliness is an important issue. Fiber peelers should be kept clean and in good condition, and should be replaced when damaged or worn. Precision cutters are the most important since the secret of good splices (whether fusion or mechanical) is to obtain good cuts in both fibers. Keep the precision cutters clean and the carbide tip lined pencil edge, and replace it regularly. You must properly perform the corresponding maintenance of the fusers and adjust the melting parameters according to the fibers that are spliced. For mechanical splices, It is important to lightly press the fiber to hold the ends together while securing them. If possible, use a visual fault locator to optimize the splice before securing it.
Splice Protection
To protect them from the environment and from deterioration, the joints need a protective sheath. 
They are usually placed in a splice tray, which is then placed inside a splice box in the external plant facilities or in a connection panel in the internal plant facilities. Within the splice closures and at each end, those cables that have shielding or resistance elements must be properly 

grounded.

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