ONDERSTEPOORT STREET LIGHTING
INVESTIGATION
CLIENT: UNIVERSITY OF PRETORIA - ONDERSTEPOORT CAMPUS
REPORT: LIGHTING DESIGN ASSESSMENT REPORT
SERVICES: ELECTRICAL ENGINEERING SERVICES
COMPILED BY:
DATE:
REVISION:
PROJECT NUMBER:
DFR ENGINEERS
01 November 2022
1.0
10318
ONDERSTEPOORT LIGHTING DESIGN
UNIVERSITY OF PRETORIA
LIGHTING ASSESSMENT REPORT
ELECTRICAL ENGINEERING SERVICES
Document prepared by:
144 General Beyers Street
Pretoria North
DFR Kwakudi (PTY) LTD
Pretoria
0182
Contact details:
Telephone:
012 546 7574
Email:
chris@dfreng.co.za
Website:
dcdcgggscsxlolkzn@dfreng.co.zaption@dfreng.co.za
www.dfreng.co.za
Document prepared for:
M35, Onderstepoort
Pretoria North
UNIVERSITY OF PRETORIA – ONDERSTEPOORT CAMPUS
Pretoria
0110
25° 38' 52'‘, 28° 10' 54''
Contact details:
Telephone:
0827679581
Contact Person:
Hendrick Raseboye
Email:
hendrick.raseboye@up.ac.za
Document information
Report Title:
Lighting Assessment report
Project Number:
10318
Revision
Revision Status
Date
Author(s)
Approved by
1.0
Submission
01-11-2022
Chris Muanda
Deon Roodt
Author signature – latest revision
Page 2 of 30
Approver signature – latest revision
ONDERSTEPOORT LIGHTING DESIGN
UNIVERSITY OF PRETORIA
LIGHTING ASSESSMENT REPORT
ELECTRICAL ENGINEERING SERVICES
EXECUTIVE SUMMARY
DFR Kwakudi was appointed by the University of Pretoria to assess the existing area and walkways lighting
installation at Onderstepoort campus.
The assessment is based on the findings obtained during the high level visual and data collected during the
inspection of the site in September 2022.
The existing lighting installation is not compliant in providing sufficient light for pedestrians in walkways and area
lighting for the overall campus.
The existing lighting installation needs to be upgraded to provide compliant lighting levels required and to satisfy
to the energy efficiency requirements.
The following works options are proposed for the new lighting installation:
•
Remove all non-compliant installations and replace it with new energy efficient and complaint installation
that considers pedestrian safety aspects and maintainability.
The above option is further substantiated to comply functional and maintenance effective as well as safe
installation for the public utilization and to adhere to pedestrian safety on the walkways.
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ONDERSTEPOORT LIGHTING DESIGN
UNIVERSITY OF PRETORIA
LIGHTING ASSESSMENT REPORT
ELECTRICAL ENGINEERING SERVICES
CONTENTS
1
INTRODUCTION .................................................................................................................................................... 7
2
BACKGROUND ...................................................................................................................................................... 7
3
SCOPE OF WORK .................................................................................................................................................. 7
4
METHODOLOGY ................................................................................................................................................... 7
4.1
BASELINE LIGHTING SURVEYS ...................................................................................................................... 7
5
STATUTORY AND LEGISLATION ............................................................................................................................ 8
6
SITE DESCRIPTION ................................................................................................................................................ 8
7
EXISTING LIGHTING INFRASTRUCTURE ................................................................................................................ 9
8
9
7.1
TYPE OF LUMINAIRE ..................................................................................................................................... 9
7.2
CONTROL MECHANISM .............................................................................................................................. 13
7.3
LAYOUT OF EXISTING LIGHTING INSTALLATION ........................................................................................ 14
PROPOSED LUMINAIRES .................................................................................................................................... 15
8.1
GENERAL .................................................................................................................................................... 15
8.2
LIGHTING REQUIREMENTS TO PROVIDE COMPLIANT LIGHTING LEVELS .................................................. 15
8.3
AREA DEFINITION ....................................................................................................................................... 15
8.4
PROPOSED LIGHTING IN AREA 1 ................................................................................................................ 16
8.5
PROPOSED LIGHTING IN AREA 2 ................................................................................................................ 17
8.6
PROPOSED LIGHTING IN AREA 3 ................................................................................................................ 17
8.7
PROPOSED LIGHTING IN AREA 4 ................................................................................................................ 18
8.8
PERIMETER SECURITY LIGHTING ................................................................................................................ 19
8.9
TREE LIGHT ................................................................................................................................................. 19
8.10
PARKING BAY LIGHTING ............................................................................................................................. 20
8.11
LIGHTING CONTROL ................................................................................................................................... 20
LIGHTING SIMULATIONS .................................................................................................................................... 21
9.1
EXISTING LIGHTING SIMULATION .............................................................................................................. 21
9.2
PROPOSED LIGHTING SIMULATION ........................................................................................................... 21
9.3
COMPARISON BETWEEN EXISTING AND PROPOSED LIGHTING SIMULATION........................................... 22
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ONDERSTEPOORT LIGHTING DESIGN
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LIGHTING ASSESSMENT REPORT
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10
CONCLUSION AND RECOMMENDATIONS ...................................................................................................... 23
11
PROJECT COST ESTIMATES ............................................................................................................................. 24
12
TIME-BASED PROFESSIONAL FEES ................................................................................................................. 25
13
ANNEXURE A: EXISTING LIGHTING SCHEDULE ............................................................................................... 26
15
ANNEXURE B: PROPOSED LIGHTING SIMULATION ........................................................................................ 27
16
ANNEXURE C: EXISTING LIGHTING AND PROPOSED LIGHTING ..................................................................... 28
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ONDERSTEPOORT LIGHTING DESIGN
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FIGURES
Figure 1: Onderstepoort site layout ............................................................................................................................. 9
Figure 2: Luminaire Type 1 ......................................................................................................................................... 11
Figure 3: Luminaire type 2 ......................................................................................................................................... 11
Figure 4: Luminaire type 3 ......................................................................................................................................... 12
Figure 5: Luminaire type 4 ......................................................................................................................................... 12
Figure 6: Luminaire type 5 ......................................................................................................................................... 13
Figure 7: Luminaire type 6 ......................................................................................................................................... 13
Figure 8: Daylight switch ............................................................................................................................................ 14
Figure 9: Site area definition ...................................................................................................................................... 16
Figure 10: Bollard light in Area 1, replace post top luminaire ................................................................................... 16
Figure 11: Post mount LED luminaire ........................................................................................................................ 17
Figure 12: Asymmetrical and symmetrical optic lens post top LED light ................................................................... 17
Figure 13: Street LED luminaire pole mount .............................................................................................................. 18
Figure 14: LED Solar Light pole mount ....................................................................................................................... 18
Figure 15: LED Flood light for perimeter lighting ....................................................................................................... 19
Figure 16: Proposed luminaire for tree lighting ......................................................................................................... 20
Figure 17: Proposed lighting for parking bay ............................................................................................................. 20
Figure 18: Existing lighting simulation ....................................................................................................................... 21
Figure 19: Proposed lighting simulation .................................................................................................................... 22
Figure 20: Comparison between existing and proposed lighting installation simulation ......................................... 22
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ONDERSTEPOORT LIGHTING DESIGN
UNIVERSITY OF PRETORIA
LIGHTING ASSESSMENT REPORT
ELECTRICAL ENGINEERING SERVICES
1
INTRODUCTION
The necessity of providing street and area lighting is to form a lighted environment, which will contribute to the
safe and comfortable movement of vehicles and pedestrians. If these requirements are satisfied, road accidents
and criminal activities can be tremendously reduced.
This report is the outcome of the preliminary site surveys conducted by DRF Engineers team with the objectives to
analyse and comprehend the current and existing walkways and perimeter lighting of the University of Pretoria
Ondersterpoort Campus.
The assessment and recommendations are based on the findings obtained during high level visual inspection,
lighting installation functionality or operation, site measurements and interview with end-users.
The lighting requirement in terms of SANS are established for the existing lighting installation for the upgrade of
the lighting that do not comply.
This report is based on preliminary design concepts only and some of the finer technical details cannot be included
until fully developed.
2
BACKGROUND
With the evolution of technology, lighting system has become a part of the energy saving system – all lighting
installation that are not compliant to energy efficiency requirement are being replaced by the new technology.
Onderstepoort campus is entirely characterized by discharge type lightings. These luminaires are not energy
efficient and were found not to provide enough lighting for the safety of pedestrian.
3
SCOPE OF WORK
The scope of work as defined by the client includes the followings but not limited to:
4
•
Assessment of outdoor lighting,
•
Focus on the pedestrian experience and safety
•
Entire campus to be included, except the sports grounds
•
Recommendations and cost estimates to be provided to obtain funds approval.
METHODOLOGY
The methodology discussed below was used and lead us to the conclusions and recommendations detailed in the
last section of this report.
4.1
BASELINE LIGHTING SURVEYS
A visual day and quantitative nocturnal survey of existing lighting conditions and measurements of lighting level
of every point was conducted on the nights of 26th and 27th of September 2022 during the period of 19h00 hours
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ONDERSTEPOORT LIGHTING DESIGN
UNIVERSITY OF PRETORIA
LIGHTING ASSESSMENT REPORT
ELECTRICAL ENGINEERING SERVICES
to 01h00 hours and on the days of 13th, 21st and 22nd of September during the period of 9h00 am to 5h00 pm. The
ambient conditions noted at this time were: temperature 24-29°C with a good visibility.
Measurements were recorded in accordance with the guidelines of SANS 10198-1 and 10389
Lighting measurement were taken using a calibrated luxmeter with the following characteristics:
•
Manufacturer: Major Tech
•
Type:
LED light meter
•
Model:
MT942
•
Sensor:
Silicon photodiode with filter
•
Display:
4000 counts with maximum display of 3999.
Generally, luminance measurements were recorded in the horizontal plane; many viewpoints were too distant for
illuminance measurements to be attributable to any single source of obtrusive light.
Digital photographs were taken from some viewpoints to illustrate the extent of the existing nocturnal lighting
conditions.
5
STATUTORY AND LEGISLATION
Works in all phases of this project will be carried out in accordance with the latest revision and amendments of
all relevant regulations, including but not limited to:
SANS 10114: interior lighting - Part 1: Artificial lighting of interior,
SANS 10389: Exterior lighting – Part 1: artificial lighting for exterior areas for work and safety
SANS 10389: Exterior lighting – Part 2: Exterior security lighting
SANS 10389: Exterior lighting – Part 3: Guide on the limitation of the effects of obtrusive light from outdoor
lighting installations
SANS 204: energy efficiency in buildings,
SANS 10400: The application of the National Building Regulations – Part O: Lighting,
SANS 10098: Public lighting – Part 1: the lighting of public thoroughfares,
CIE 140: Road Lighting Calculation,
ISO/CIE 8995-3:2018 (E) Lighting of workplaces – Part 3: lighting requirements for safety and security of outdoor
workplaces.
6
SITE DESCRIPTION
The site is composed of the student residence, sport fields (soccer, rugby, basketball, tennis), parking bays,
walkways and the academic buildings. To make the design a bit more practical, we have divided the site into 4
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ONDERSTEPOORT LIGHTING DESIGN
UNIVERSITY OF PRETORIA
LIGHTING ASSESSMENT REPORT
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areas. These areas are dependent on the type of luminaire. The site is located in Onderstepoort, Pretoria North
South Africa.
Figure 1: Onderstepoort site layout
7
7.1
EXISTING LIGHTING INFRASTRUCTURE
TYPE OF LUMINAIRE
Different luminaires types are used to light up areas throughout the campus and some of them are discussed in
the following paragraphs. We have also summarised the energy consumption and electrical characteristic of
different luminaires. From the table below, we can summarize that discharge lamps require time and high power
for their normal operation.
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Table 1: Discharge light type electrical data (Schneider Electric)
Type of
lamp
(W)
Power
demand
(W) at
Current In (A)
Starting
PF not
PF
corrected
corrected
x In
230 V
230 V
230 V
High-pressure sodium vapour lamps
50
60
0.76 0.3
70
80
1 0.45
1.4 to 1.6
100
115
1.2 0.65
150
168
1.8 0.85
Low-pressure sodium vapour lamps
26
34.5
0.45 0.17
36
46.5
0.22
66
80.5
0.39
1.1 to 1.3
91
105.5
0.49
131
154
0.69
Mercury vapour + metal halide (also called metal-iodide)
70 80.5
1 0.40
1.7
150
172 1.80
0.88
250
276
2.10 1.35
400
425
3.40 2.15
Mercury vapour + fluorescent substance (fluorescent bulb)
50
57
0.6 0.30
80
90
0.8 0.45
1.7 to 2
125
141
1.15 0.70
Luminous
efficiency
(lumens
per watt)
Average
timelife of
lamp (h)
4 to 6
80 to 120
9000
7 to 15
100 to
200
3 to 5
70 to 90
6000
3 to 6
40 to 60
8000 to
12000
Period
(mins)
8000 to
12000
With the advancement of technology and the health safety awareness, discharge lamps are being replaced by the
LED technology. These new technologies are high efficiency, they offer a long lifetime and high efficacy.
•
TYPE 1
Composed with a conic glass reflector and mounted on a three-meter (mounting height) pole with a uniform
diameter of 79 mm, luminaire type 1 is a mercury vapour discharge type lamp. This can be visualised in the image
below. This luminaire takes longer to give the maximum output light level and have poor power factor and high
starting current (see table 1)
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Figure 2: Luminaire Type 1
•
TYPE 2
The luminaire type 2 has mercury vapour discharge lamp in some area and pressure sodium discharge lamp in
others. It’s principally used on the student residence side of the campus to light up walkways and parking lots. It
is mounted on a 3 meters (mounting height) pole with 79 mm top diameter. Luminaire type 2 can be seen below.
The image on the right-hand side shows a luminaire with a broken glass. Most luminaire of the type had cracks or
broken and it can be assumed that this is due to age and/or meteorological agents. The proposed lightings offer a
high protection against meteorological agents and they are designed to prevent the accumulation of dust and
leaves hence preventing premature ageing of the luminaire.
Figure 3: Luminaire type 2
•
TYPE 3
Luminaire type 3 is mounted on a 3 meters (mounting height) pole with a top diameter of 79mm. it is of Bekaray
type from Beka Schréder. It uses a 125W mercury vapour discharge lamp to light up walkways and street on the
campus. Not sufficient light levels were recorded in all areas where the luminaire was installed.
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Figure 4: Luminaire type 3
•
TYPE 4
Type 4 luminaires are used on the west part of the student residence and they are of high-pressure sodium type.
They are mounted on 3 meters poles and have an average interpole distance of 12 meters. Light measurements
taken during inspection on these luminaires were found not to be complaint to the minimum level required for
the application by SANS 10098. The lux level measured between poles showed zero lux.
Figure 5: Luminaire type 4
•
TYPE 5
Luminaire type 5 is a 125 W mercury vapour discharge lamp mounted at 6,5 meters height of a 7 meters pole with
an outreach arm length of 2 meters and at a setback distance of 2m. It is used to light up the portion of the street
from the campus entrance 1 to OP village student residence. The average illuminance measured by the flux meter
during the site survey showed 0 lux between poles with this luminaire and the street was found not to be safe at
night time for both pedestrians and motorcyclists.
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Figure 6: Luminaire type 5
•
TYPE 6
Luminaire type 6 can be seen on the photograph below. It is composed of a 70W mercury vapour lamp mounted
at 6,5 meters height of a 7 meters pole. This luminaire is used the light up the portion of the street connecting the
student residence to the academic part of the campus. This light was found to be inefficient in providing sufficient
lights. During the site inspection, the luxmeter measured an average illuminance of 1 lux and the light level
between pole was almost zero.
Figure 7: Luminaire type 6
7.2
CONTROL MECHANISM
The lighting control system used to control and command lighting throughout the campus is a basic daylight
switch. A daylight switch is an automatic switch that has as photo resistance and can either switch on or off light
depending on the night or day, respectively. the photograph below provides the graphical depiction of the
daylight switch of the existing lighting installation.
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Figure 8: Daylight switch
7.3
LAYOUT OF EXISTING LIGHTING INSTALLATION
Table 2: Existing lighting installation layout
Area
Lighting
Mounting
Arrangement height of
luminaire
(m)
Area
1.1
Area
1.2
Post top
mount
Post top
mount
Area
2.1
Area
2.2
Area
3
Area
4
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Distance
of pole
from
edge of
road (m)
Outreach
Arm
length
(m)
Outreach
Arm type
3
Average
Spacing
between
poles with
luminaires
(m)
13m
Luminaire
type
N/A
N/A
N/A
3
13m
N/A
N/A
N/A
Post top
mount
Post top
mount
Single side
arrangement
3
13m
N/A
N/A
N/A
3
N/A
N/A
N/A
N/A
6.5
42
2.5
2.5
Single
curved
250W
and
125W
Single side
arrangement
6.5
41
2.5
2.5
Single
curved
125W
125 W
and 70 W
HPS and
MV
125 W
and 70W
70W
Electrical
Reticulation
Underground
LV cable
Underground
LV cable
Underground
LV cable
Underground
LV cable
Underground
LV cable and
overhead
conductor
Underground
LV cable
ONDERSTEPOORT LIGHTING DESIGN
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8
PROPOSED LUMINAIRES
8.1
GENERAL
The total amount of electricity consumed by lighting technologies is estimated to be 700000 GWh. Thus, lighting
accounts for 7% of the total energy and 18 percent of the total electricity consumption. An efficient and low
energy consumption lighting system was the main focus on this assessment to replace all discharge type
luminaire actually installed at Onderstepoort.
The proposed luminaires are selected based on the following considerations:
•
Health and environmental,
•
Luminaire characteristics and specification,
•
Luminaire photometric data and performance: this is to say how the luminaire performance is affected
throughout its lifespan.
•
Maintainability,
•
Lighting or luminous efficacy (energy efficiency as per SANS 204) – this is the measure of how well a light
source produces visible light. It’s the ratio of luminous flux to power in lumens per watt.
8.2
LIGHTING REQUIREMENTS TO PROVIDE COMPLIANT LIGHTING LEVELS
As per SANS 10098-1 table 2 – Recommended lighting values for group B street and footways. Group B1 is the
lighting category defined for residential streets in high density residential area and medium to high traffic.
Lighting category:
B1
Minimum average horizontal illuminance:
EHmin
>=
5 lux
Minimum horizontal illuminance:
Uo
>=
1 lux
Minimum semi-cylindrical illuminance:
EH
>=
0.6 lux
8.3
AREA DEFINITION
For ease of analysis, we have divided the site into 4 different areas or zones as follows:
•
Area 1 in green, is composed of all walkways in the student residences and the academics.
•
Area 2 in red, is the rest of the campus where all existing top post luminaire will be retrofitted.
•
Area 3 in yellow, is the part of the street joining the student residences to the entrance 2.
•
Area 4 in blue, is the street connecting the student residences and the academics.
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Figure 9: Site area definition
8.4
PROPOSED LIGHTING IN AREA 1
Some pole mounted lights in the walkways in area 1.2 were covered presumably by students. A luminaire on 3
meters pole right next to a window can cause discomfort during sleep. The walkways remain a key functional area
requiring illumination. This illumination needs to be achieved whilst minimizing light pollution into the nearby
residence rooms. This can be achieved by controlling the light distribution by means of professional optics
asymmetrical and symmetrical and mounting height of the fitting. Bollard lights were found to be of prime choice.
All post mounted luminaires in in area 1.1 and 1.2 walkways will be replaced by bollard lights. The Naka 01 LED
bollard has a contemporary, architectural design and elegant appearance. Professional optical technology
provides the desired effect, managing glare whilst providing high levels of visibility. The Naka 01 LED bollard has a
smooth housing without any exposed screws. Bollard light can be visualised in the images below.
Figure 10: Bollard light in Area 1, replace post top luminaire
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8.5
PROPOSED LIGHTING IN AREA 2
All lights in area 2 to be replace by LED post mount depicted in figure 11. The symmetrical or asymmetrical beam
angle option makes it easy to focus the beam to a specific spot. They can be easily mounted on the existing pole
hence minimizing and/or suppressing civil and electrical works. Post mounted LED light can be seen below.
Figure 11: Post mount LED luminaire
The Naka 03 LED post top design brings an architectural style, as well as a desired organic look to an area, site and
urban environments. Professional optics provide the desired effect, managing glare while providing high levels of
visibility. The smooth curvature effectively prevents the accumulation of dust and leaves. For streetscapes,
asymmetric optic lens will be used and symmetrical Optic Lens for open area. Image 12 shows the difference
between the asymmetrical and symmetrical optic lens post top LED.
Figure 12: Asymmetrical and symmetrical optic lens post top LED light
8.6
PROPOSED LIGHTING IN AREA 3
Where trees limit sunlight, we recommend the use of more energy efficient LED light, e.g., in area 3. All discharge
type luminaires will be replaced by the Rigel 19 LED street light. The Rigel 19 LED street light’s slim design, is a
premium street lighting solution for new construction and retrofit applications. The high output LED and
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perspective control (PC) lens provides outstanding uniformity and efficiency with a remarkable lifespan of
>137000 hours. The super smooth surface prevents the accumulation of dust, sand and other materials,
minimizing the environmental impact on the luminaire performance.
Figure 13: Street LED luminaire pole mount
8.7
PROPOSED LIGHTING IN AREA 4
People walking in this area at night were found to be vulnerable and during loadshedding or power outage this
area is permanent danger to pedestrian and motorcyclists. Area 4 is an open area with no trees and high-rise
buildings. We have proposed the Rigel 43 LED solar street light for this area. The Rigel 43 LED solar street light is a
fully integrated luminaire with a solar panel and a battery energy storage. It is easy to install with no need for
wiring, bringing a smart and durable lighting solution. It offers a high system efficiency up to 200lm/W. The
luminaire has an option to be hybrid or standalone.
Figure 14: LED Solar Light pole mount
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8.8
PERIMETER SECURITY LIGHTING
Thousands of kilometres of perimeter fencing are installed annually in South Africa in order to protect personal
property, critical infrastructure, and individuals from theft, vandalism, and harm. Typically, a permitter fences is
the first layer of defence. Since most disturbances occur under darkness, adding perimeter lighting is an essential
part of every security plan. The role of lighting is to deter, detect, and detain individuals who would attempt to
breach a secure perimeter.
Having this in mind, it essential to have perimeter lighting as this will enhance security. We have proposed the
following luminaire with the following considerations in mind:
•
Provide a clear view of an area from a distance, allowing movement to be easily detected,
•
Deny potential hiding places along frequently travelled foot routes,
•
Allow for facial recognition with on-site security personnel, and
•
Deter crime against persons and property.
Figure 15: LED Flood light for perimeter lighting
8.9
TREE LIGHT
Once darkness creeps in, the yard may look a bit scary and lonely. A little creative landscaping can turn this
loneliness into ambiance. This can be achieved simply by tree up lighting. In darkness, trees are imposing; well-lit
trees may be all that is needed to alter the loneliness of an area into a beautiful ambiance. With its ease of
installation, the Focus LED Light is a versatile LED floodlight and has been designed for lighting gardens and parks.
It offers various anti-glare baffles. This luminaire is recommended to light up trees in all areas where shades
created by tree reduces visibility of pedestrians during night-time. Focus LED light can be viewed in the image
below.
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Figure 16: Proposed luminaire for tree lighting
8.10 PARKING BAY LIGHTING
We recommend the replacement of all CFL luminaires used in the parking lots by more energy efficient
luminaires. The GenProof 04 is a traditional vapor proof linear batten with an impact-resistant polycarbonate
casing. This luminaire is fitted with a PIR sensor and can be controlled by a deep switch to ensure ease of
maintenance. Image below is a graphical depiction of the GenProof 04 luminaire.
Figure 17: Proposed lighting for parking bay
8.11 LIGHTING CONTROL
Lighting control is a control system used to control the on and off period. By doing so, we reduce energy
consumption, lighting pollution and ultimately, enhance safety. As a general practice, all lights will be controlled
by either timers or daynight sensors which switch the fittings on at Sunset and off at Sunrise. A combination of
daynight switch and a motion detector will be provided in covered parking bays. This will restrict the light in the
parking bay to switch on only in the presence of an object in the area of the sensor.
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9
LIGHTING SIMULATIONS
Simulations for the existing and the proposed lighting installation were performed to comprehend the state of
the existing lighting installation and propose a lighting solution to reinforce and/or upgrade the existing.
9.1
EXISTING LIGHTING SIMULATION
The existing lighting simulation has shown the inefficiency of the existing lighting installation. It does not provide
the lighting uniformity needed by pedestrian and motorist. The section between the student residence and the
academic is totally unsafe as the existing installation does not offer enough lighting at night. The simulation of the
existing lighting installation is depicted in the photograph below.
Figure 18: Existing lighting simulation
9.2
PROPOSED LIGHTING SIMULATION
More lights were added to the existing lighting installation and the existing luminaires were replaced and/ore to
create a safe environment at night time. The results of the simulation were satisfactory. The minimum lighting
level was achieved as per SANS 10389. The simulation of the proposed lighting was performed with the following
in mind:
•
Lighting uniformity;
•
The minimum lux levels;
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•
Minimize glare and light pollution
Figure below show the photograph of the proposed lighting simulation. A more smooth, continuous and equally
distributed lighting was achieved.
Figure 19: Proposed lighting simulation
9.3
COMPARISON BETWEEN EXISTING AND PROPOSED LIGHTING SIMULATION
Figure 20: Comparison between existing and proposed lighting installation simulation
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ONDERSTEPOORT LIGHTING DESIGN
UNIVERSITY OF PRETORIA
LIGHTING ASSESSMENT REPORT
ELECTRICAL ENGINEERING SERVICES
10 CONCLUSION AND RECOMMENDATIONS
In this report we have assessed the lighting installation at the University of Pretoria Onderstepoort campus and
based on the high visual analysis and data collected, we have concluded that the state of the existing lighting
installation is not complaint to both SANS standard and energy efficiency requirements.
We recommend the following:
All discharge type lamps be replaced by LED
All post top luminaire in student residence walkways be replaced by bollard lights
All street light in area 4 be retrofit by solar luminaires
All post top discharge luminaire to be retrofitted with energy efficient LED luminaire.
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ONDERSTEPOORT LIGHTING DESIGN
UNIVERSITY OF PRETORIA
LIGHTING ASSESSMENT REPORT
ELECTRICAL ENGINEERING SERVICES
11
PROJECT COST ESTIMATES
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ONDERSTEPOORT LIGHTING DESIGN
UNIVERSITY OF PRETORIA
LIGHTING ASSESSMENT REPORT
ELECTRICAL ENGINEERING SERVICES
12 TIME-BASED PROFESSIONAL FEES
Page 25 of 30
ONDERSTEPOORT LIGHTING DESIGN
UNIVERSITY OF PRETORIA
LIGHTING ASSESSMENT REPORT
ELECTRICAL ENGINEERING SERVICES
13 ANNEXURE A: EXISTING LIGHTING SCHEDULE
Existing light
Mercury Vapour
Mercury Vapour
Mercury Vapour
High Pressure
Sodium
Mercury Vapour
Metal Halide
High Pressure
Sodium
High Pressure
Sodium
LED Flood Light
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Quantity
145
7
6
6
Power (W)
125
150
250
Maker
Condition
Osram
Multiple
AEG
Good
Good
Good
Multiple
Good
Multiple
Multiple
Regent
Lighting
Good
Good
1
4
400
400
400
106
70
3
250
Multiple
Good
1
400
Pioled Lighting
Good
Bad
ONDERSTEPOORT LIGHTING DESIGN
UNIVERSITY OF PRETORIA
LIGHTING ASSESSMENT REPORT
ELECTRICAL ENGINEERING SERVICES
15 ANNEXURE B: PROPOSED LIGHTING SIMULATION
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ONDERSTEPOORT LIGHTING DESIGN
UNIVERSITY OF PRETORIA
LIGHTING ASSESSMENT REPORT
ELECTRICAL ENGINEERING SERVICES
16 ANNEXURE C: EXISTING LIGHTING AND PROPOSED LIGHTING
EXISTING LIGHTING
PROPOPOSED LIGHTING
AREA
Proposed luminaire for
area 1
Proposed luminaire for
area 2
Proposed luminaire for
area 4
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ONDERSTEPOORT LIGHTING DESIGN
UNIVERSITY OF PRETORIA
LIGHTING ASSESSMENT REPORT
ELECTRICAL ENGINEERING SERVICES
Proposed luminaire for
area 3
Proposed luminaire for
perimeter lighting
Proposed luminaire for
pool area lighting
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ONDERSTEPOORT LIGHTING DESIGN
UNIVERSITY OF PRETORIA
LIGHTING ASSESSMENT REPORT
ELECTRICAL ENGINEERING SERVICES
Proposed luminaire for
parking bay
Proposed luminaire for
tree lighting
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