WCA September 2008

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news
Wire & Cable ASIA – September/October 2008 48
The successful X-Ray 8000 for the
measurement of wall thickness, eccen-
tricity as well as the diameter and
ovality of high-voltage cables has
been improved regarding design and
technology. The focus of the further
development was on profitability and
technological progress.
The optimised technology was
summarised under the name X-Ray
8000 NXT (NeXT generation) for an
optimum quality control at the
production of MV-, HV- and EHV-cables
in CCV-, VCV- and MDCV-lines.
With the new X-Ray 8000 NXT for XL
diameters, Sikora is now presenting a
new model of this series, which
combines the technological advantages
of the X-Ray 8000 NXT with regard to
the practical application in the field of
EHV-cable (Extra High Voltage cable)
production.
X-Ray 8000 NXT is perfectly suitable
for extremely big cable diameters of up
to 180mm for CCV-lines and 220mm
for VCV-lines. It provides highest
measuring accuracy and repeatability
while demonstrating the flexibility and
safety of an X-Ray 8000 NXT.
As with the X-Ray 8000 NXT,
the XL-system requires only one scan
to calculate all measuring values.
Hence, all requirements for rapid
centering of the extrusion tools as well
as optimum control of the production
line.
Multi-sensor semi-conductor detectors
are incorporated into the high-end
variant of the X-Ray 8000 NXT.
The multi-sensor-technology assures
reliable readings and ensures reliable
measuring values – even when the
cable is vibrating.
At each scanning process four
measuring values are provided for a
remarkably precise measurement.
An important development is
the integration of ceramic windows
(patent pending), which separates the
scanners from the pressure of the
CV-line. This replaces the previously
used beryllium windows and prevents
contamination in the measuring
plane. The surface of the ceramic
windows does not react with any
by-products and always remains clean
without rinsing and mechanical
protections.
The product planning of the X-Ray
8000 NXT was specifically adapted
to the demands of the modern
high-voltage cable production.
Today, 500 kV-cables and higher are
produced, with greater wall thicknesses
and a specific measuring plane.
Additionally, the expansion of the hot
material results in a bigger hot
diameter.
For the measurement of EPR-cables
with extremely large diameters Sikora
offers a 70-kV-scanner-model, to
ensure highest quality at the
production.
Sikora International Corp – USA
Email:
Website:
Next generation X-Ray 8000 NXT