EW September 2016

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News
Corporate
September 2016 25
Renewable energy is booming. Not only
single households, but more and more
companies are also changing their power
supply sources. Solar energy is one of the
sources that is transmitted through solar
cables, and these have special properties
to fulfil environmental requirements: they
need to be UV resistant, weather resistant
and mechanically resistant, as well as
offering electrical properties with an ideal
lifetime of more than 25 years.
RosendahlNextrom delivers extrusion
technology for the production of single-
and multi-core solar cables. The process
covers insulation and jacketing in one
production step on two extruders of a
similar size. An optional stripe extruder
can be included in the extruder group.
The latest standard, TÜV2Pfg1169/08.07,
also allows the process to run
co-extrusion (dual-layer extrusion with
one crosshead).
Some advantages with Rosendahl
co-extrusion are:
• Thinner walls on solar cables
• Higher production speeds
• Easy operation, as it is only one
extruder group
• Lower investment costs
• Shorter line length
The extrusion process calls for intense
product know-how. The material is
typically a polyolefin copolymer which is
then crosslinked using either an electron
beam or the Sioplas method to achieve
the desired product quality. These two
methods help the material attain a
rigid molecular structure for chemical
resistance and mechanical flexibility. The
material characteristics can be tailored to
suit custom needs.
RosendahlNextrom GmbH – Austria
Website:
Extrusion technology for solar cables
▲ ▲ Solar cable co-extrusion from RosendahlNextrom
Gotex deal done
Coats has acquired Gotex, a Spain-based
manufacturer of high performance fibres,
yarns and tapes used in industries such
as telecommunications, oil and gas and
power transmissions.
Gotex’s fibreglass coating technology and
products will complement Coats’ existing
coated aramid product range, providing
much synergy between the product
offerings.
Gotex SA – Spain
Website: