I recently watched my coworker disassembling a pc only using one tool. Was it the right tool for the job? Yes and no. It was the tool he had… it worked, however, there is definitely several tool out there that could have made the task easier! This situation is certainly one that many fiber optic installers know all too well. As being a gentle reminder, what percentage of you have used your Splicer’s Tool Kit (cable knife/scissors) to remove jacketing or even slit a buffer tube and then use the scissors to hack away at the Kevlar? Did you nick the glass? Did you accidentally cut through the glass and have to start over?

Correctly splicing and terminating FTTH cable production line requires special tools and techniques. Training is essential and there are lots of excellent sources of training available. Usually do not mix your electrical tools together with your fiber tools. Make use of the right tool for the task! Being familiar with fiber work will end up increasingly necessary as the significance of data transmission speeds, fiber to the home and fiber towards the premise deployments continue to increase.

Many factors set fiber installations besides traditional electrical projects. Fiber optic glass is extremely fragile; it’s nominal outside diameter is 125um. The slightest scratch, mark or even speck of dirt will change the transmission of light, degrading the signal. Safety is important since you will work with glass that may sliver in your skin without being seen from the human eye.

Transmission grade lasers are very dangerous, and require that protective eyewear is important. This industry has primarily been working with voice and data grade circuits that may tolerate some interruption or slow down of signal. Anyone speaking would repeat themselves, or the data would retransmit. Today we are working with IPTV signals and customers that will not tolerate pixelization, or momentary locking in the picture. All the situations mentioned are cause for the consumer to find another carrier. Each situation could have been avoided if proper attention was given to the methods used when preparing, installing, and looking after Fiber drawing machine.

With that being said, why don’t we review basic fiber preparation? Jacket Strippers are used to take away the 1.6 – 3.0mm PVC outer jacket on simplex and duplex fiber cables. Serrated Kevlar Cutters will cut and trim the kevlar strength member directly beneath the jacket and Buffer Strippers will eliminate the acrylate (buffer) coating through the bare glass. A protective plastic coating is used to the bare fiber right after the drawing process, but before spooling. The most common coating is a UV-cured acrylate, which is applied in 2 layers, resulting in a nominal outside diameter of 250um for your coated fiber. The coating is extremely engineered, providing protection against physical damage brought on by environmental elements, including temperature and humidity extremes, being exposed to chemicals, reason for stress… etc. while minimizing optical loss.

Without one, the maker would struggle to spool the fiber without breaking it. The 250um-coated fiber is the foundation for a lot of common fiber optic cable constructions. It is often used as is, especially when additional mechanical or environmental protection is not required, like within optical devices or splice closures. For additional physical protection and ease of handling, a secondary coating of polyvinyl chloride (PVC) or Hytrel (a thermoplastic elastomer that has desirable characteristics for use as a secondary buffer) is extruded over the 250um-coated fiber, enhancing the outside diameter as much as 900um. This kind of construction is known as ‘tight buffered fiber’. Tight Buffered may be single or multi fiber and are seen in Premise Networks and indoor applications. Multi-fiber, tight-buffered cables often can be used for intra-building, risers, general building and plenum applications.

A ‘Rotary Tool’ or ‘Cable Slitter’ could be used to slit a ring around and thru the outer jacketing of ‘loose tube fiber’. When you expose the durable inner buffer tube, you can use a ‘Universal Fiber Access Tool’ which is designed for single central buffer tube entry. Used on the same principle as the Mid Span Access Tool, (that enables accessibility multicolored buffer coated tight buffered fibers) dual blades will slit the tube lengthwise, exposing the buffer coated fibers. Fiber handling tools such as a spatula or even a lqzgij will help the installer to gain access to the fiber needing testing or repair.

Once the damaged fiber is exposed a hand- stripping tool will be utilized to remove the 250um coating to be able to assist the bare fiber. The next step will likely be cleaning the FTTH cable production line and preparing that it is cleaved. An excellent cleave is probably the most important factors of creating a low loss on the splice or a termination. A Fiber Optic Cleaver is really a multipurpose tool that measures distance through the end in the buffer coating to the point where it will probably be joined plus it precisely cuts the glass. Remember to use a fiber trash-can for your scraps of glass cleaved off of the fiber cable.

FTTH Cable Production Line – Fresh Info On The Subject..

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