vodacom
Vodacom: energy efficiency
Looking down at the custom-designed lighting system that illuminates the Vodacom Data Centre’s reception area

South Africa’s leading mobile phone network Vodacom has fitted its Gauteng data centre with an energy efficient lighting system.

The mobile service provider has fitted the inside of its Midrand Data Centre with a fabricated stainless steel suspended light fixture supporting four large edge-lit linear LED luminaires to illuminate the main reception area, said African electro-mechanical specialist Actom Electrical Products, which installed the turnkey system.

The lighting technology also uses a daylight harvesting system designed to automatically dim the artificial illumination during the day when the area is sufficiently lit by natural light.

Commenting on the technology, Actom said in a statement that: “The luminaires on-board photocell sensor continuously measures the ambient light levels and automatically ramps up its light output to supplement the natural light if a drop in the pre-set ambient illumination level is detected due to overcast conditions and automatically ramps up to its full capacity at night.”

Data centre energy efficiency

Vodacom’s data centre occupies a large open plan area where each hall demands individual concentrated lighting, depending on occupancy.

Actom therefore installed high efficiency T5 linear fluorescent recessed luminaires, individually equipped with passive infrared occupancy sensors allowing for accurate lighting control and switching within tight parameters.

Actom
From left: William Blackbeard, technical and quality manager at Genlux Lighting, and Neil van Blerk, business development executive at Actom, in one of Vodacom’s new Data Centre halls, which are fitted with passive infrared occupancy sensors

The data centre’s passages are lit by high performance IP 65 rated linear fluorescent luminaires equipped with electronic control gear coupled to high efficiency 45 W T5 lamps and employing a corridor dimming function – as opposed to the on/off switching that applies in the occupancy/non-occupancy applications – and control coupled to strategically placed sensors, Actom stated in a company statement.

Neil van Blerk, business development executive at Actom Electrical Products, said that the lighting business arm of Actom was recently expanded through the support of local luminaires designers and manufacturers Genlux Lighting based in Germiston. Genlux contributed design input as well as supplying some of the luminaires.

Vodacom’s consulting electrical engineers Taemane Consulting Engineers was responsible for overseeing the whole project, which was completed from November 2013 to July 2014.