WCA March 2008

Global changes drive advancements in HV/EHV power delivery systems The growth of the high voltage (HV) and extra high voltage (EHV) global power cable segment remains very strong, driven by industrialisation and urbanisation in developing markets, replacement or refurbishment of ageing power transmission systems in mature markets, and the trend toward underground installation. Dow Wire & Cable works closely with customers, end users, industry associations and testing facilities to develop solutions that can support evolving infrastructures. The materials portfolio offers mechanical strength, flexibility, electrical properties and ageing stability, and continues to set HV/EHV industry standards worldwide for cleanliness, consistency, reliability and overall quality. Growth and expansion also are an ongoing part of the company’s focus. Dow Wire & Cable is enlarging its global reach with new and updated manufacturing and R&D facilities and by adding new and industry-experienced technical service, R&D, marketing and sales personnel. Dow Wire & Cable provides a complete solution of compounds required by cable makers to manufacture, test and easily install HV/EHV cables. Super clean cross- linked polyethylene (XLPE) insulation compounds are mandatory materials for underground HV cable constructions. HFDJ-4201 S from Dow Wire & Cable meets global testing standards including IEC 62067 for voltage greater than 150kV. Designed for use in HV/EHV power cable applications for transmission and distribution systems, HFDB-0801 and HFDA-0587 BK S conductor shield and bonded insulation shield compounds provide improved processing characteristics and are designed to be compatible with current semi-conductive extrusion processing equipment. New HDPE black jacket resin (DGDK-6800 BK EXP4) offers excellent mechanical and physical properties and outstanding processability. It provides very good ESCR values and meets IEC 60502-1, AEIC-CS7-93, ICEA 720, DIN VDI 02676-620 and type DMP9 requirements for global power cable jackets. DHDA-7708 semiconductive jacket permits easy DC testing of the cable either on the reel or after installation. Dow Wire & Cable – USA Fax : +1 713 978 3275 Email : info@dow.com Website : www.dowwireandcable.com

Flexible help from A&E

New Camel waterblocking yarns from A&E Inc provide cable producers valuable flexi- bility to tailor yarn count and absorbency characteristics to meet specific application requirements. Specifically designed for filler and binder applications, Camel water- blocking yarn is based on super absorbent fibre (SAF) technology, which provides the ultimate in rapid absorbency. Camel waterblocking yarn can reach 90% of its maximum absorbency in slightly more than five seconds with an average minimum absorbency of 30-grams/gram.

Camel waterblocking yarns provide flexibility

m

This specialised yarn provides for clean and efficient pay-offs from several package formats. With SAF technology, absorbency is built into the yarn. This feature translates into more absorbent material being conveyed into the cable without the powder buildup inherent with most SAP yarn products. Dependent on yarn size, package lengths of over 122,000m are available. Fine-count yarn options (down to 288-decitex/34.7 km/kg) offer cable designers a new dimension in loose tube constructions and cable weight savings. A & E Inc – USA Fax : +1 704 827 0974 Email : northamerica.information@amefird.com Website : www.amefird.com

90

Wire & Cable ASIA – March/April 2008