Lightning and surge protection for outdoor lighting systems

A discussion on minimum dimensions of earthing conductors, as well as standardisation and potential control for connecting lamp poles and lightning equipotential bonding for outdoor wall lamps (LPZ0A). Whether outdoor lighting is wall-mounted or installed on open terrain, it remains important to determine the lightning protection zone, LPZ0A or LPZ0B. Outdoor lighting systems in LPZ0A […]

A new approach to luminaire quality evaluation

In August 2014, IESSA formed the Lighting Industry Technical Committee (LITC) to deal with matters of concern to the South African lighting industry. The LITC has also formed a working group tasked with evaluating the status of key industry challenges. The committee makes proposals to formulate action plans to deal with matters including SABS certification […]

Rehabilitation for failing water piping

New to South Africa is a system which rehabilitates the inner infrastructure of deteriorated or failing water piping using an array of cured-in-place epoxy pipe lining solutions. SABMiller’s brewery in Okahandja, Namibia, had a drainpipe failure. The network of pipes affected run beneath epoxy coated 30 MPA concrete floors supporting the plant’s heavy machinery and […]

Green building: Energy efficiency pays dividends

Tucked away just off busy Grayston Drive in Strathavon, Johannesburg, is a facebrick office park that does not appear to be very different to the many other stylish developments mushrooming in the area. The three-storey Upper Grayston Office Park on Linden Road is, in many respects, quite a remarkable development, especially its blocks E and […]

Lighting for “Africa’s greenest hotel”

Hotel Verde, part of the BON Hotel Group, has been dubbed “Africa’s greenest hotel” for obvious reasons. Every aspect of the hotel is designed to be as sustainable as possible, employing efficient systems to save water and electricity while reducing waste. The building features green landscaping, a vegetated roof, three 3 kW vertical axis wind […]

Case study: remote condition monitoring of London Underground track circuits

Delivering a reliable remote condition monitoring system for the London Underground to enable maintainers to respond to failures before they occur. London Underground serves 1,7-billion passengers per year and the Victoria Line accounts for 213-million of those journeys. The line carries 89,1-million passengers per year in the peak service, offering the most intensive service on […]