Fibre Wind provides high quality fibre optic and cooper cable service for offshore / onshore projects. Everything that is about telecommunications in Renewable Industry can be covered by us on your request.
Following services are cowered by us for now:
- fibre optic cable preparation
- fibre optic cable splicing and protection
- fibre optic cable termination
- fibre optic cable testing and fault elimination
- distribution box installation
- fibre optic / cooper cable patching
- cooper cable termination
Fibre optic cable preparation
Before splicing process takes place it is necessary to prepare cable, so how it is done by us?
First we mount special sleeve on one of the fibres and then coating is being removed by mechanical stripping tool. It is safe, inexpensive and creates a well-defined coating termination.
In order to prevent potential failure, all fibres exposed to the chemical solvent are being thoroughly cleaned after stripping with lint-free cotton or alcohol-soaked pad.
A fundamental step in obtaining an acceptable fusion splice is proper fibre-end preparation.
Fibre-end angle can be different, which mostly depends on our customer’s splice loss requirements, so we use mechanical well-controlled cleavers to make the right angle.
Fibre optic cable splicing
Splicing is required to create a continuous optical path for transmission of optical pulses from one fibre length to another, so it has its place when cable length modification or fault elimination is necessary.
We use automatic fusion splicing equipment with modern software in order to provide our customers with the maximum quality.
Once fibre optic cables are prepared for splicing, thus they are stripped, cleaved and clean fibres, they are being placed in the splicing machine in the V-groove chucks. Fibres alignment is always done automatically by the unit.
Next step is fusion process. Here fibre ends are being heated up to optimum temperature by burst of arc current, which allows to soften the joining fibre ends during fusion. Thus, fibres melt together upon physical contact.
After splicing, sleeve is being shifted to the splicing joint and placed into the heating camera, where sleeve heat shrink occurs.
Completed splice assembly will be secured into the splice organiser.
Fibre optic cable termination
Basically, this is an addition of connectors to each optical fibre in the cable.
Here we use SC connector with pigtail. It is short, tight-buffered optical fibre with optical SC connector pre‑installed on one end and a length of exposed fibre at the other end. The end of a pigtail is being spliced to a single fibre of a multi-fibre trunk.
Thus, splicing of pigtails to each fibre in the trunk splits the multi-fibre cable into separate fibres for connection to the end equipment.
Fibre optic cable testing and fault elimination
We use Optical Time Domain Reflectometer (OTDR) for testing the integrity of long fibre optic cables or cables plants with splices. It verifies splice loss, measures length and finds a fault.
OTDR produces data that is used to create trace to be stored for later reference or to check against the blueprint in the case of a network fault.
Thus, OTDR simply shows where cables are terminated and confirms the quality of the fibres, connectors and splices. OTDR traces also show where breaks are in the fibre cable, so in a troubleshoot case the OTDR traces are being compared with the installation documentation.
In an emergency cable repair situation, it is necessary to start normal cable testing to locate cable breaks.
Once that is done and cable break is accessible, we remove particular length of cable either side of the break, thus ensuring that the remaining cable is undamaged.
After that, cable fibres are being prepared for fusion and fused.
As in normal fibre splicing when fusion is done we protect the splicing joint with special sleeve, same for the rest of the cable. Finally, we test again the cable on breaks to ensure that all works were performed correctly.
Distribution box installation
Fibre optic splices never are being left without proper management. For this purpose we maintain advanced cassette system distribution boxes, which take on three different FO cables, where two of them are for ring network of wind farm and one for wind turbine. Because we splice to pigtails, it allows flexible patching.
Junction or distribution box is also water and dust proof, which makes data transmission safe, cable armor is grounded and sealed with a shrinkable sleeve.
Fibre optic / cooper cable patching
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Cooper cable termination
Firstly, we take off the cable jacket by using mechanical strippers to expose 8 different colour twisted wires. After that, they are being separated and organised for data plugging. For that task, we use T-568B wire configuration as the most common configuration for all projects. If needed or for alternative, we can use
T-568A configuration and it works just as well keeping the good transmission quality of the cable. Then we trim the tips of the cables by using wire cutters until all of the wires are even. Finally, wires are being inserted in the data plug and crimped. After all works are done, we test the cables on the transmission quality to ensure that everything is done correctly.