Edition: February 2011 CSTR: Part D029 Design - Lighting
PART D029
DESIGN - LIGHTING
CONTENTS
1. General
2. References
3. Design Requirements
4. Materials
5. Ancillary Installation or Re-Modelling Works
6. Hold Points
7. Records
1. GENERAL
This Part specifies the requirements for the design of lighting schemes, including road lighting, car park / transport
interchange lighting, pedestrian lighting and feature lighting. The Contractor is deemed to have allowed for all time
and costs associated with liaising ETSA Utilities (ETSA) and the Office of the Technical Regulator (OTR) and
obtaining necessary approvals.
2. REFERENCES
Unless specified otherwise, all design shall be undertaken in accordance with the following:
1. Electricity Act (SA)1996
2. Electricity (General) Regulations(SA) 1997
3. DPTI: Road Design Standards and Guidelines (Refer http://www.dpti.sa.gov.au/standards).
4. ETSA: Service Rules and Regulations
5. AUSTROADS: Guide to Traffic Engineering Practice, Part 12 - Road Lighting.
6. AS 1158: Lighting - Roads and Public Spaces
7. AS 2430.3.2: Classification of hazardous areas - Examples of area classification - Vehicle workshops,
vehicle parking, fuel dispensing stations and aircraft hangars
8. AS 3000: Electrical Installations
9. Office of the Technical Regulator: (Refer http://technicalregulator.sa.gov.au).
Joint Safety Guidelines – Working Safely Near Overhead Powerlines
Building Safely Near Powerlines
10. Civil Aviation Safety Authority: Manual of Standards, Part 139, 9.21 Lighting in the vicinity of Airports.
(Refer from http://www.casa.gov.au/rules/1998casr/index.htm)
3. DESIGN REQUIREMENTS
3.1 General
The placement of lighting equipment shall provide ease of maintenance and repairs and maximum protection to road
users and maintenance personnel.
High Pressure Sodium lamps shall be used for V category road lighting.
The lighting shall achieve the following standard:
AREA TO BE LIT CATEGORY
Main carriageway, connecting roads and all major V3
intersections
Platforms and surrounding bus ways: P6
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Kiss-and-drop Category P11
Park-and ride Category P11
Parking spaces and circulating roadways P11
Disabled parking spots and prams P12
If ETSA equipment exists, it shall be used as a first preference for mounting of lights.
3.2 Poles
Slip base poles shall be used on roadways where there is low pedestrian traffic. Impact absorbing poles shall be used
in areas of medium to heavy pedestrian traffic, such as in shopping precincts, public transport interchanges and
parking areas and within 30 m of bus stops. Combination traffic signal/road lighting columns shall be used at traffic
signal sites.
The Contractor may propose to use light poles on the project that are not currently approved for used by DPTI.
Any proposal to use unapproved light poles must include details of maintenance requirements and the process of
purchasing replacement poles.
Provision of details of proposed light poles shall constitute a HOLD POINT. The Principal is under no obligation
to accept unapproved lightpoles.
3.3 Clearance to Electrical Cables
Clearances of new lighting poles to overhead and underground electrical cables shall comply with the requirements
of the OTR. In the event that the Contractor proposes to use clearances less than the recommended clearances, the
Contractor shall obtain the written approval of the OTR to use these clearances prior to proceeding with the Final
Design. Notwithstanding the OTR requirements, the minimum clearance to overhead cables shall be 6.4 m.
The Contractor shall provide a copy of any OTR approval with the Final Design drawings.
3.4 Luminaires
Luminaries used for road lighting shall be installed at the heights shown in Table 3.4 unless constrained by overhead
cables or specified otherwise.
TABLE 3.4 MOUNTING HEIGHTS FOR LUMINAIRES WITH
HIGH PRESSURE SODIUM VAPOUR LAMPS
Lamp rating (W) Nominal mounting height (m)
150 (250)* 10.5 (10.5)*
250 12.0
400 12.0
*Where electricity distribution or existing DPTI poles are used, mounting heights may need to be varied to suit the
values shown in brackets.
Mounting heights for other lamp types and ratings will require prior approval.
The Contractor may propose to use luminaries and lamps on the project that are not currently approved for use by
DPTI. Any proposal to use unapproved luminaries and lamps must include details of:
(a) compliance to relevant Australian Standards,
(b) lux levels (luminance),
(c) design life,
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(d) colour rendition,
(e) energy use,
(f) dimming capability
(g) whole of life cost, and
(h) maintenance requirement.
Luminaires that the Principal may consider include:
(a) Induction lighting,
(b) Light Emitting Plasma (LEP),
(c) Light Emitting Diode (LED),
(d) High pressure sodium, and
(e) Metal Hailide.
Provision of details of proposed luminaries and lamps shall constitute a HOLD POINT. The Principal is under no
obligation to accept unapproved luminaries and lamps.
3.5 Lighting Pole Locations
Poles shall be located so that the standard of lighting is not compromised by any existing or proposed trees or
structures. Where there is conflict between the lighting scheme and proposed tree planting, the lighting scheme shall
take precedence. New pole locations shall not conflict with other services or property crossovers and shall be
located to avoid conflict with traffic signal line-of-sight requirements. Where practicable, road lighting poles shall
be installed at the boundary between two adjoining properties. Clearances from hazardous areas shall be in
accordance with AS 2430.3.2 or a minimum of 8.3 m whichever is the greater.
Road lighting poles shall be located in footpaths or in centre medians wider than 2.0 m and shall be installed in
accordance with Drawing No. S-4055, sheets 19 - 24, 26, 30 and 37. Lighting on bridges shall be from the side of
the deck and poles shall not be located inside traffic and pedestrian barriers.
Where the Contractor proposes to use ETSA infrastructure to support lighting, the Contractor shall obtain a “Bracket
Check” to verify that the height and outreach are acceptable to ETSA.
3.6 Conduit and Cables
Design of the conduit system shall be in accordance with Part D030 “Design – Conduits”. Where practicable,
conduit for lighting shall be placed in the same trench as ducting for other facilities such as traffic signals or traffic
management systems. Electric cable shall be 6 mm2, 10 mm2 or 16 mm2 for distribution circuits and a minimum of
16 mm2 for consumer mains.
3.7 Feature Lighting
Details of lighting types and mounting for any feature lighting shall be included in the Detailed Design. Installations
to be maintained by the Electrical Supply Authority shall comply with ETSA Technical Standards.
3.8 Underpass Lighting
For an underpass used by pedestrians and/or cyclists, the lighting shall be designed throughout the underpass with
both horizontal and vertical illuminance.
3.9 Lighting Switchboard Cabinets
Electrical switchboard cabinets shall be located not less than 5 m from any carriageway, and where possible, beyond
the clear zone for the respective sections of road. The Contractor shall provide approved measures to protect a
distribution cabinet within a clear zone. The cabinets shall be installed in accordance with Drawing No. S-4055,
sheets 43, 44 and 45.
3.10 Power Supply
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Edition: February 2011 CSTR: Part D029 Design - Lighting
The Contractor shall determine the power supply points and reticulation in conjunction with ETSA and obtain its
written confirmation of the availability of the supply point.
DPTI pits supplying Consumer Mains to a DPTI distribution switchboard shall be equipped with lockable lids.
3.11 Light Monitoring and Control System
The lighting control system shall allow the management of the light output, to enable dimming street lights to match
different times of night and traffic numbers and provide light management in luminaire groups based on site specific
conditions.
Where the lighting control system is to be adopted, which includes the management of light output based on traffic
numbers the lighting category may be reduced to the appropriate lighting category as determined in accordance
with the specified references.
The light monitoring system shall incorporate a system diagnostics with features including:
(a) lamp failure,
(b) failed to strike,
(c) reduced power,
(d) shutdown including thermal and aged lamp shutdown, and
(e) communications failure.
Details of light monitoring and Control systems including integration with DPTI traffic management centre shall
constitute a HOLD POINT.
4. MATERIALS
Road lighting poles, bases, luminaries, conduits, pits and associated components shall comply with:
(a) Part 250 "Supply of Lighting Components"
(b) Part 251 "Supply of Luminaries"
(c) Part 252 "Installation of Lighting"
(d) Part 253 "Installation of Conduits and Pits".
Where the proposed light poles are of type not covered in the above specifications (e.g. Heritage Style Poles,
Pedestrian Lights), the Contractor shall obtain the prior approval of the Principal.
5. ANCILLARY INSTALLATION OR RE-MODELLING WORKS
This Clause applies where pre-existing electrical power reticulation networks are affected by lighting work under this
Contract.
On acceptance of the Contractor’s road lighting design by the Principal, the Principal will reimburse the relevant
electricity authority directly for the following ancillary installation or re-modelling works which the electricity
authority undertakes to its electrical power reticulation networks:
(e) erection and/or relocation of poles and fittings;
(f) supply of cable;
(g) drawing of cables through conduits and fitting off; and
(h) connection to the power supply and commissioning.
The cost of all other materials and works shall be borne by the Contractor.
6. HOLD POINTS
The following is a summary of Hold Points referenced in this Part:
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CLAUSE RESPONSE
HOLD POINT
REF. TIME
3.2 details of proposed light pole 10 Working Days
10 Working Days
3.4 Provision of details of proposed luminaries and lamps
10 Working Days
3.11 Details of light monitoring and Control systems
7. RECORDS
The following records shall be provided to the Principal:
Drawings
The drawings described in the DPTI: Road Design Standards and Guidelines and drawings showing full
details of any feature lighting.
As constructed drawings
An Isolux contour drawing with the illuminance level shown. Drawings shall display a compliance note or
stamp indicating the illuminance level that the lighting was designed to.
Road lighting drawings shall show any existing high voltage overhead cables.
Reports
A report detailing all calculations, including details of the program used to prepare the calculations and the
Maintenance Factor used in the design.
Implementation Records
Copy of any OTR clearance approval (Clause 3.3);
ETSA “Bracket Check” (Clause 3.5);
ETSA confirmation of supply point availability (Clause 3.10).
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