Lighting in Design

the modern design and finishes in these areas.

The effect was replicated in the glass walled main

staircase where the linear luminaires, using LED

technology, were mounted vertically on the steel

mullions of the windows. “The total effect,” says Le

Roux, “was exactly what we hoped to achieve and

the end result of the lighting solution we adopted

in the common areas was that the LEDs combined

high quality and energy efficiency. Also, the long

life of the LEDs used in the luminaires supplied

for these areas will reduce maintenance costs

throughout the life of the building”.

In order to attain the required lux levels onto the

vertical areas of the racks in the 14 000 m² distribu-

tion warehouse, T-Bay luminaires using 4 by 80 W

T5 lamps were specified.The small diameter of the

T5 makes it easier to control the light so it works

well for the high mounting height of the warehouse

environment.

Cell C elected not to install a building manage-

ment system in the Campus so although there is

a fair proportion of natural light in the main office

block, which is situated around a courtyard, there

is no daylight harvesting. Occupancy sensors have

been installed in the common corridors, toilet facili-

ties and offices, except where local switching or

dimming was requested in areas such as meeting

rooms and board rooms.

In the exterior parking areas and roadways, a

purpose-made pole with a mounting height of 6 m

and a square luminaire using LED sources was

designed to match the simplistic lines of the build-

ings. The building’s external aesthetics are of the

campus’s most attractive features. Because the ‘C’

in Cell C embodies the company’s brand, the letter

is used in creative ways across the campus (the

customer care centre incorporates a ‘C’ skylight

for aesthetic purposes) and two C’s placed on the

warehouse exterior are illuminated at night, making

them clearly visible from both the N1 freeway and

Old Johannesburg Road.

To further enhance the night time effect, the dis-

tinctive lines of the building have been highlighted

using LED strip lighting with in-ground fittings light-

ing up the columns. Deryl Lan of Pamboukian light-

design was responsible for the striking and effective

exterior lighting on the campus. He explains that

his general approach was to gain an insight into the

architecture and, from there, to develop a lighting

proposal within budgetary conditions and bearing

in mind energy consumption and environmental

considerations. Using LEDs as the primary source

(in total 750 m of LED lighting was used externally),

the team decided to place in-ground uplighters at

the guardhouse and surrounding external columns

throughout the campus to highlight and emphasise

their verticality. On the rest of the facades on the

main campus, linear LED strip lighting was use to

highlight the deep reveals. In order to draw atten-

tion to the building and the Cell C brand from the

highway, the lighting team highlighted the ‘flat’

facades facing the highway using projectors that

project a ‘break-up’ pattern.

Overall, le Roux is satisfied with the lighting,

particularly where LED technology was used, “The

general consensus of the developers, tenants and

professional team is that our decision to go this

route was correct and the effect is what we had

envisaged”.

Van Rooyen is also delighted with the end result

saying that it was a pleasure to work with such a

professional team, including the main electrical

contractor DC Electrical and, “given the speed

with which we worked, there were remarkably

few problems”.

LiD

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