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Technologynews
Wire & Cable ASIA – November/December 2010 46
Dow Endurance™ DHDA-7708 BK is
appropriate for medium, high and
extra-high voltage (MV, HV, EHV)
applications and can be applied as a
thin layer over an existing jacketing
grade during manufacture or as a cable
jacket extruded entirely of this
semiconducting compound.
The compound provides a reliable
earth (ground) continuity path to allow
integrity testing of the cable jacket,
either upon installation or years later.
The material can be used in any
situation where graphite has
traditionally been used, but is a
particularly good choice where cables
are installed in air, for example in duct
systems or tunnels or where ground
conditions make testing graphite-
coated cables difficult. Unlike graphite,
Dow Endurance DHDA-7708 BK resists
being washed and abraded from the
surface of the cable during installation
and over years of service.
When used as the sole jacketing
material, Dow Endurance DHDA-7708
BK provides continuous earthing
(grounding) along the entire cable. This
affords additional protection from
surges and transients, such as
lightning. The compound can be used
for both land and subsea cables.
In addition to delivering the important
conductive properties for monitoring
and electrical functionalities, Dow
Endurance DHDA-7708 BK also
delivers excellent protective
characteristics required for jacketing
over MV, HV and EHV power cables.
It provides the mechanical strength
and durability of a normal insulating
jacket. Compared to conventional
thermoplastic semiconductive mat-
erials, this compound is said to offer
improved environmental stress-crack
resistance, better thermomechanical
and low-temperature properties
(flexibility in colder climates), easier
strippability and stronger cut-through
and abrasion resistance.
The compound also offers reduced
moisture vapour transmission and
adhesion to strippable insulation shield
while reducing system cost at time of
installation and over the cable lifetime.
Dow Wire & Cable – Switzerland
Website:
Durable, flexible semicon
jacketing
Suzuki Garphyttan Group is a
producer of valve spring wire, said to
have around one-third of the
worldwide market.
The Suzuki Garphyttan Group provides
high quality spring wire products
globally from its three sites in Sweden,
the US and China. All three sites
produce valve spring wire for the
automotive industry. Other products
include oil tempered wire for
transmissions while special wire
products, such as stainless spring
wire and flat/shaped wire, are
produced in Garphyttan, Sweden.
Since the Suzuki Metal Industry
acquisition of the Garphyttan group in
2009, a wider product range has
become available, including Suzuki
Metal’s Japanese-made wire.
All sites are certified according to IS/
TS 16949 and ISO 14001 and utilise
the Suzuki Garphyttan Lean system.
Garphyttan products are commonly
used in automotive applications, but
high performance and quality makes
them suitable for very many different
and varied applications.
Suzuki Garphyttan AB – Sweden
Fax: +46 19 295 101
Email:
Website:
Spring wire from Sweden
New products and technology in
every issue
If your company is involved in the
above industry sectors, we invite you to
participate in these special features by
sending in editorial about your machinery
or products, for FREE publication in the
March 2011 edition.
Please send the text as aWord document
attached to an email to the address
below. Photos should be JPEG 300 dpi
and a minimum width of 9cm.
Please forward to: The Editor
Email:
Tel: +44 1926 334137
Website:
Closing Date: 16/12/2010
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