EoW July 2014

News Corporate

MTO® cables used in Kosovo open cast mine

35kV. For this installation, 30kV rubber hose cables have been supplied with a diameter of 70mm, a reel of 3m inner diameter and 8.5m in length. The cables operate up to a speed of 9m/min. RoHS compliant, Tratos MTO® cables have been built to adhere to worldwide standards including AS/NZS, VDE, BS, UL, CSA, MSHA and OSHA. Extremely rugged, they are suitable for a variety of applications in drilling and underground environments, including open-pit mining, tunnelling and mineshafts, as well as loading and unloading trains and ships. Tratos – UK Website : www.tratos.co.uk

European supplied Tenova Takraf, a manufacturer of heavy surface mining and transportation equipment, with Tratos MTO® ES3 cable for use in an open-cast mining site in Kosovo. Tratos manufactured and delivered two lengths of 2100m MTO® Console-cable reel for use on excavators, for which the company is renowned. Manufactured to withstand the kind of extreme conditions common in mining applications, Tratos MTO® cables are resistant to extreme temperatures, sunlight, water, chemicals, oil and abrasion and are available in voltages ranging from 600V up to cable manufacturer Tratos has

Graphene sandwich Researchers at a UK and US university have discovered that creating a graphene/copper/graphene sandwich strongly enhances the heat conducting properties of copper, a discovery that may help in the downscaling of electronics. The work was led by Alexander Balandin, a professor of electrical engineering at the Bourns College of Engineering at the University of California, USA, with Konstantin Novoselov, a professor of physics at the University of Manchester in the UK. Professors Balandin and Novoselov are corresponding authors for the paper just published in the journal Nano Letters. Prof Novoselov shared the 2010 Nobel prize in physics with Andre Geim for their discovery of graphene. In recent experiments, the researchers found that adding a one-atom thick layer of graphene on each side of a copper film increased heat-conducting properties up to 24 per cent. Whether the heat conducting properties of copper improves by layering it with graphene is an important question because copper is the material used for semiconductor interconnects in modern computer chips. Copper replaced aluminium because of its better electrical conductivity. Downscaling the size of transistors and interconnects and increasing the number of transistors on computer chips has put an enormous strain on copper’s interconnect performance, to the point where there is little room for further improvement. For that reason there is a strong motivation to develop hybrid interconnect structures that can better conduct electrical current and heat. Bourns College of Engineering – USA Website : www.engr.ucr.edu

Video’s step-by-step instruction

▲ ▲ A screen shot from the newly released video

Haefely Hipotronics, a full-line manufacturer of high voltage test equipment and measurement instrumentation, has launched a new EMC testing “how-to” video – featuring the AXOS series of expandable conducted immunity test systems. The video takes viewers behind-the-scenes with a Haefely industry expert to demonstrate a live surge combination wave test in standard and pre-compliance modes of operation. In addition to training users on how to safely set up and operate the AXOS8, the “how-to” video reviews its complete range of capabilities – including surge combination wave, ring wave, EFT/burst, telecom wave, AC/DC voltage dips and interrupts and pulsed magnetic field.

The video is now available on the company’s website and YouTube channel.

The series: • gives intuitive, step-by-step instruction on operation • answers commonly asked questions • explains best practices and techniques to users Haefely Hipotronics – Switzerland Website : www.haefely.com

University of Manchester – UK Website : www.manchester.ac.uk

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July 2014