Fiber Type; Fiber Introduction Into The Fusion Splicer And Splicing Process; Heat-Shrink Protection - Televes OSSGT Operating Instructions Manual

Electric-arc fusion splicer
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ELECTRIC-ARC FUSION SPLICER
Make sure that the fi ber placed on the cleaver does not
form an angle between both holding rubbers, since it
could cause problems for splicing (higher cutting angle).
Fiber should be placed on both rubbers, always forming
a straight line between them. The following example
illustrates how NOT to place the fi ber.

5.3 Fiber type

Switch on the fusion splicer and select the fusion program
based on your fi ber type. For single-mode fi bers, the
SM-auto mode is pre-set by default .
5.4 Fiber introduction into the fusion splicer
and splicing process.
- Open the protective cover to place the fi ber .
- Lift the fi ber clamps .
- Put the cleaved fi bers on the V-grooves. Insert them from
top to bottom (avoid fi ber contact with other elements
present in the fusion splicer).
- Check that fi bers stick out from the V-groove, and that
they are placed half-way between the V-grooves and
the electrodes (too close to the electrodes will produce
a processing error). Before closing the cover, make sure
that no fi ber is seen on the screen. This would mean
that the fi bers are too close to the electrodes.
- Check that the fi bers on the V-groove are not misaligned,
since they may be slightly bent .
- Lower the fi ber clamps and the protective cover; the
equipment will start the splicing process*.
* If the option "automatic start" is disabled, you will have to
press the "SET" key .
Either way, you should have previously entered the
"Start" menu with the "Menu" key. The fusion splicer will
not work unless you are on that menu.
Check the fi bers hanging from the fusion splicer are
not blocked by the cover or held by the installation (fi ber
should be loose enough to allow the equipment to move
it) .
Correct positioning
Incorrect positioning
The splicing process consists on the following steps:
- Fiber positioning.
- Fiber cleaning.
- Adjustment of the distance between fi bers .
- Fiber-core alignment.
- Electric arc fusion.
- Loss estimation and tensile test .
If any error is displayed on the screen, the process will stop
until the anomaly is fi xed .
In case the splicing process fails to complete:
1) Check the adjustment of the distance between
fi bers: Despite the fusion splicer automatically bringing
the fi bers together, it has a minimum and a maximum
range. If the fi bers are not close enough to each other,
the equipment will not be able to bring them together.
2) Check the fi bers are not dirty: Clean both, fi bers and
V-groove if necessary .
3) Check the lenses are free of dirt: Lenses need to be
kept clean, since the equipment uses them to align the
fi bers. Some of the splicing fusion errors are due to the
presence of dirt on the lenses. In addition, there are
two complementary mirrors on the fusion splicer cover
(over the lenses) that also need to be kept in good
condition (clean). See section 7 (Maintenance) .

5.5 Heat-shrink protection

Before you proceed with the process preparation, you
need to introduce a heat-shrink protection on one of the
fi bers to protect the operation .
After the fusion has taken place, slip the heat-shrink
12

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