Architect and Builder Magazine South Africa March/April 2014 | Page 23

An impressive four storey, 3 dimensional dark charcoal wall cladding and large scale pendant lights that illuminate the foyer space are dominant elements the construction was planned on a fast track program, the complete professional team, contractors and suppliers all worked very hard and diligently together to pull this huge feat off within the time allocated within budget and to specification. Cell C presented a co-operative platform of their own skilled technical team, supporting the process along the way. All this made the project a very integrated seamless operation amid all the various players. ELECTRICAL ENGINEER’S REPORT Although the building was not aiming to achieve Green Building Status, the brief to Eksteen & Le Roux Consulting Electrical Engineers was to use energy efficient lighting sources in the entire exterior parking areas and roadways, pedestrian walkways and interior common areas such as passages and toilets. To achieve this, extensive use was made of LED light sources. Special luminaires were designed for this purpose to accommodate the LED light sources and blend in with the design of the buildings. Approximately 1500 Low Brightness fluorescent lights and 800 LED down-lighters were used in the office block alone. Chilled water is distributed throughout the building via chilled water risers located within the air handling unit (AHU) plant rooms on each level. The fresh air is introduced into each mechanical plant-room by means of external weather louvres or ducted fresh air systems. Heating is by means of electric resistance type elements located in either the air handling units in the mechanical plant-rooms, within the fan coil units or terminal diffuser reheats. MECHANICAL ENGINEER’S REPORT HVAC - OFFICE BUILDING The air conditioning for the office component of the development is by means of a series of air cooled chillers located on the rooftop plant area, generating the required chilled water. The chilled water is distributed to the terminal air handling units via of thermally insulated steel piping. Cell C Head Office 23