Q&A: Ask an expert

  In this article, we talk to IESSA technical adviser Connie Jonker about LEDs and find out whether cost-benefit studies have been conducted on them; whether manufacturers’ temperature-rise and lifetime claims hold truth, and whether we should be concerned about some imported LEDs, among others. Are there cost-benefit studies available on these lighting sources? Cost […]

The role of engineers and the technical media in civil society

  This paper was presented on 6 April 2014 by Chris Yelland, managing director at EE Publishers, at the Civilution Congress 2014 held at Emperors Palace, Kempton Park, South Africa, from 6 to 8 April 2014. Background to the prevailing environment First some background on the prevailing environment in which we find ourselves as engineers […]

Vector Inbox April 2014

This month, our readers warn that personal liability has been imposed for non-payment of pension funds; respond to issues on the new IEC164-6 plug and socket configuration and explain why VC9012 only covers portable luminaires and luminaires which are handled frequently. Our winning letter Re: IEC164-6 plugs, sockets: why re-invent the wheel?”, Vector, March 2014 […]

Q&A: Ask an expert

In this article, we talk to IESSA technical adviser Connie Jonker about the claims made about energy-saving lamps; how the user should decide between LED and CFL; whether the wattage and efficiency claims are tested, and on the effect they have on power factor. Can the end-user have faith in the claims made about “energy […]

Industry is still missing opportunities to save energy

  Research commissioned by ABB has confirmed that energy efficiency remains a high priority for executives in industry. Of more than 300 surveyed in the manufacturing and power sectors by the Economist Intelligence Unit (EIU), almost all said energy efficiency will remain a crucial success factor for their companies in the next two decades. But […]

Vector Inbox March 2014

This month, our readers address the issue of temperature rise in minisubs; question the new VC9012 standard for luminaires; express general dissatisfaction with the new IEC164-6 plug and socket configuration, and comment on the state of the skilled labour force, among others. Our winning letter Temperature rise in minisub transformers Dear Editor I would like […]

In conversation with ACDC Dynamics MD Mario Maio

by Mark Botha, editor Mario Maio, founder and owner of ACDC Dynamics, speaks to Vector about the company’s history and achievements, and shares his views on skills development, the state of the SETA system and e-Tolls, among others. Mario Maio founded ACDC Dynamics with a partner 30 years ago and is today MD and sole […]