PART 1 – GENERAL
1.01 WORK INCLUDED
A. Description: Furnish, install, connect and test the following, all as shown on the
drawings and specified here in:
1. Street lighting poles, luminaries, fittings and accessories.
2. Free standing bollards and luminaries.
3. Wall mounted exterior light fittings and luminaries.
B. Related Work Specified Elsewhere:
1. Section of Quality Control
2. Section of Traffic Signal System
3. Section of Concrete Rein for cement
4. Section of Precast Structural Concrete
5. Section of Painting
6. Section of General Provisions for Elecrical Work
7. Section of Basic Materials and Methods
8. Section of Power System Warning Signs and cable Identification.
9. Section of Conductors and Accessories
10. Section of Grounding and Bonding
11. Section of Lighting Fixtures
12. Section of Roadway Lighting Systems
1.02 APPLICABLE CODES AND STANDARDS
The following codes and standards are intended to provide an acceptable level of quality
for materials and products. The Contractor may propose alternative codes and standards
providing them giving an equivalent degree of quality as the referenced codes an
standards and are submitted to the owner consultant engineer for reviewing and approval
in advance of their use. All equipment furnished under these specifications which is not
determined or having any restrictions in local regulations concerning with electrical
affairs shall conform to the appropriate standards of:
1. NEC – National Electrical Code
2. NEMA – National Electrical Manufacturers Association
3. IES – Illuminating Engineering Society
4. ANSI – American National Standards Institute
5. ASTM – American Society for Testing and Materials
6. NFPA - National fire Protection Association.
1.03 SUBMITTALS
The following shall be submitted to the owner consultant engineer for approval prior to
commencing work:
2
l. A list identifying manufacturers and all material and equipment items proposed for use
in the work of this Section.
2. Manufacturers’ specifications, data sheets, shop drawings, installation instructions,
operation instructions, and maintenance and repair recommendations for each item.
3.Manufacturers’ Certificates of Compliance: To indicate that each material and
equipment item complies with the requirements of the specifications. Any test results
shall also be submitted, in report form.
4.Recommended list of spare parts.
1.04 PRODUCT DELIVERY, STORAGE AND HANDLING
A. All fittings, panels, luminaires and accessories shall be boxed, crated, and
wrapped, or otherwise suitably protected during delivery, storage and handling.
On delivery, they shall be stored in a secure and dry facility.
B. All poles shall be suitably packed during transportation and protected from
abrasion, impact and other damage.
1.05 SPARE PARTS
The Contractor shall not use any spare parts furnished under the contract with the
equipment, without the owner consultant engineer approval. These shall be stored as
directed by the owner consultant engineer.
1.06 QUALITY CQNTROL
The Contractor shall be responsible for the quality of all materials used in the work in
accordance with section of quality control. The Contractor shall develop a supplier
quality control program for review covering procedures for shop inspection and field
supervision to ensure acceptability of materials, fabrication, welding, galvanizing, and
installation.
PART 2 - PRODUCTS
2.01 GENERAL
A. All goods and products covered by these specifications shall be procured, when
available, from an approved manufacturer. Procurement of all goods and
products shall be approved by the owner consultant engineer.
B. All goods and products shall be new and designed for operation in a corrosive
atmosphere at 2300 m above sea level, an ambient temperature of 40 °C and
humidity of 90%.
2.02 CRITERIA FOR LIGHTING PQLE ASSEMBLIES
These criteria apply to aluminium, steel and fiber- glass lighting pole, bollards, & arm
assemblies.
3
A. Poles and mast arms shall be designed and fabricated for service under the
following conditions:
- Wind Speed…………………………….180 km/hr
- Temperature range……………………. 0 C° to 50 C°
- Relative humidity range……………… 10% to 100%
B. All elements of lighting pole assemblies shall be designed and fabricated to
preclude the entry of water.
C. Smooth raceways shall be provided inside all elements for internal wiring.
D. All materials shall be anti- corrosive type.
2.03 ALUMINIUM POLES & ARMS:
A. Poles
1. Poles shall be one-piece seamless tapered tubes fabricated by anticorrosive
material Poles shall have full-length tapers with round or
polygonal cross sections.
2. Each pole shall be provided with a reinforced oval handhole, minimum
size of 100mm x 165mm, located on the side away from traffic. Wrought
aluminium covers conforming to ASTM B 26 and stainless steel tamper
proof screws for attaching covers to handhole shall be provided.
3. Each pole shall be provided with a copper alloy grounding lug, readily
accessible from the handhole.
4. Each pole shall be provided with a removable cast aluminium pole cap,
held securely in place.
B. Arms:
1. Arms shall be single member or truss-type as indicated per drawings and
shall be made.of aluminium alloy conforming to ASTM anti-corrosive
type and shall have a suitable mechanical strength.
2. Provisions shall be made for bolting either a single member or truss-type
mast arms to poles. Wrought aluminium bolting plates aluminium alloy,
shall be welded to poles; matching plates shall be welded to arms.
3. Bolts and nuts, or tube nuts, shall be of .type 304 stainless steel material
conforming to ASTM -A 276.
C. Anchor Base
1. The anchor base shall be die cast anti corrosive aluminium, conforming
to the requirements of ASTM B 85. The aluminium alloy shall be
selected to give a minimum yield strength of 290 MPa. The base shall
telescope the pole and shall be welded to the pole by two circumferencial
welds, one on the inside bottom and one on the outside top. The base
shall be designed and welded to develop the full strength of the pole.
4
D. Welding of Aluminium
1. All welding shall be performed by welders who have provided
certifications that they are fully qualified in the welding of aluminium.
Certifications shall be acceptable to the owner consultant.
2. The inert gas shield arc method shall be used. Welds shall be free from
cracks and porosity.
E. Hardware
A1I. mounting and fastening hardware use in conjunction with aluminium poles and
arms shall be of type 304 stainless steel material conforming to ASTN A 276.
F. Finish
Aluminium poles and mast arms shall he finished with a uniform nonspecular surface,
the natural colour of Aluminium. Anodizing shall be applied to the aluminium for
surface protection and long life. Surfaces shall be anodized to form an oxide film of not
less than 22 micron, after which a proper sealing process is required. Finish shall be
smooth, uniform and free from disfiguring scratches, dents and other detrimental
markings.
2. 04 STEEL POLES & ARMS
A. Poles
1. Poles shall be tapered galvanized steel anti- corrosive type tubes
fabricated from minimum 3mm thick steel conforming to specification
ASTN A595 or A36. The pole shall be tapered uniformly for its full
length. One longitudinal electric arc weld will be permitted; no transverse
welds will be permitted. After welding, the pole shall be cold rolled to
flatten the weld. and to develop a minimum yield strength of 330 Mpa.
Poles shall have round or polygonal cross sections.
2. Each pole shall be provided with a reinforced oval handhole, minimum
size of 100mm x 165mm, located on the side away from traffic.
2.05 FIBERGLASS POLES AND ARMS
A. Poles
1. Poles shall be of fiberglass reinforced polyester (FRP), cylindrical or
conical. The pole surface shall be totally weather and corrosion resistant
in earth and air, completely smooth exterior, homogenous and nonporous.
No glass fibers shall appear at the outer surface, and the outer
0.5-1.0mm shall consist of pure polyester. A minimum of one layer of the
fiberglass-reinforced polyester shall be unidirectional. The poles shall be
available in any colour specified by the owner consultant the colour shall
be completely light stabilized and impregnated from the surface through
the thickness of the material.
5
2. Mast Pole tops shall be designed to receive the approved arm(s) and/or
luminaire (s).
The pole tops and the parts of the pole surface intended as assembly attachment points
for further accessories shall be reinforced with stainless steel wire mesh to prevent
loosening of fasteners in those particular areas.
3. Each lighting pole shall have a handhole access, fully integrated into the
surface of the pole. The handhole door shall be weatherproof, electrically
safe and tamper proof.
B. Arms
Mast arms shall be of galvanized steel, anodized aluminium or other compatible
corrosion resistant material, of length indicated in contract drawings.
C. Anchor Base
1. Pole base shall be a steel plate, which forms an integrated part of the
pole. The pole base shall have a welded vertical steel inner cone, which
extends into the bottom of the fiber-glass pole.
2. The steel plates shall conform to ASTM A-36 or approved equal. The
steel base plate shall be complete with holes pattern, as shown in the
drawings, for high tensile strength anchor bolts and one central hole for
cable entry.
D. Accessories
All steel accessories of the pole shall be hot dipped galvanized conforming to ASTM A-
123 or approved equal after completion of the fabrication. No further touching up,
finishing or modifications shall be carried out after galvanizing. The minimum thickness
of zinc coating shall be 500 g/sq.m. The galvanizing shall be carried out by total
immersion in a bath of molten zinc.
2.06 ANCHORS BOLTS
Anchor bolts shall be made from high strength steel having minimum yield strength of
345 MPa. The treaded portion shall be 150mm long. Other dimensions shall be as shown
on the drawings. Two hexagon nuts shall be furnished with each bolt; one for leveling
and one for fastening. The threads of the bolts and the hexagon nuts shall be hot-dipped
galvanized in accordance with ASTM A 153.
2.07 SLIP BASE INSERTS
A. Poles shall be fitted with slip base inserts when so indicated on the drawings.
B. The plates comprising the slip base insert shall be steel conforming to the
requirements of ASTM A 36. Alternatively, the bottom plate may be cast steel,
conforming to the requirements of ASTM A 27, Grade 70-40.
C. The steel plates shall be galvanized to ASTM A 123.
6
D. For poles with steel bases, nuts and bolts in slip base inserts shall be steel
conforming to ASTM A 325, galvanized to ASTM A 153; or alternatively, Type
304 stainless steel material conforming to ASTM A 276.
E. For poles with aluminium bases, nuts and bolts in slip base inserts shall be
stainless steel.
2.08 BOLLARDS
Bollards shall he manufactured to the dimensions shown, and the fasteners shall be of
the sizes shown, in the Contract Drawings. The bollard shaft shall be constructed of
heavy gauge, thick wall anti- corrosive alloy of aluminium in one seamless tube. The
.top cap shall be cast aluminium sealed against the weather and secured with a socket,
tamper-proof screw. The internal cast aluminium base plate shall be secured with four
(4) anchor bolts on a holt- circle. The polished-diffuser shall he polycarbonate and be
enc1osed by. Polycarbonate or aluminium louvers set at a 45 angle. The alignment rods
shall be cadmium-plated steel and the lamp holder shall be weather-proof ceramic
designed for firm lamp support.
The all-aluminium construction architectural surface shall be finished with a non lead
black baked acry1ic enamel or other se1ected finish. Painting shall be as specified in
Section of painting.
Outside dimensions and construction shall be in accordance with the detailed Contract
Drawings.
2.09 LUMINAIRES
A. General: Luminaires and a11 accessories shall comp1y with the requirements
specified below: and the luminaires shall be suitable for operation on 220V, 50Hz.
unless shown otherwise on the drawings.
Ballast shall conform with applicable requirements of ANSI C82-4 it should be
thermally protected, high power factor auto-regulator type with a minimum operating
power factor of 95%, Ballasts shall be suitable for operation within ± 10 percent
variation in voltage, and ±2 percent variation in lamp watts Luminaires shall be equally
distributed on 3 phase Luminaire type are specified in the following paragraphs:
B. Luminaire Types – Pole Mounted
1. Mounting height as per DWG: The luminaire shall house 250 watt HPS lamp and
shall have a one-piece die-cast aluminium – silicon alloy body to give maximum
resistance to corrosion. The control gear shall be integral within a separate
compartment of the luminaire housing. A porcelain lampholder shall be supplied with
a terminal block of non-hygroscopic material. The refractor of the luminaire shall be
prismatic heat resistant borosilicate glass, the prismatic formation to redirect the lamp
flux to provide a medium, A high purity brightened and anodized reflector shall be
housed in the luminaire.
Luminaire shall be gasketed to provide a weather proof seal with the lower rim of the
body and shall be supported by quick release stainless steel toggle catches. Filtered
breathing shall be provided for either thru a separate filter or thru filter gasket.
7
The luminaire shall be provided with a 250- watt high pressure sodium lamp. The ballast
shall be fitted with a capacitor to give a Power Factor correction of 0.95.
C. Luminaire Type – Bollard Mounted
Bollard lightings: 0.75 to 1.2 metre-mounting heights. The bollard shall have either a 70-
watt sodium lamp as required. The bollard shall be made to the dimensions and style
shown in the Drawings. The lampholder shall be weatherproof ceramic, designed for
firm lamp support.
Typical applications are for aesthetic and accent lighting, for example in landscaped
areas, parks, shopping arcades etc.
D. Luminaire Types – Wall Mounted
Wall mounted luminaires may be installed either inside the concrete block wall flush
with the surface or attached to the outer surface of the wall in the manner specified and
detailed in the Drawings. The housing for the luminaire shall be one-piece aluminium
casting of an alloy containing less than 0.3% copper to prevent corrosion when cast in
concrete.
A cast aluminium junction box may be attached to the luminaire housing and enclosed
by a removable cover. The interior volume of the junction box shall contain four
threaded taps, two with removable plugs. A temporary cover shall be furnished to keep
the housing clean until the electrical components are to be installed.
The luminaire door frame shall be one-piece aluminium casting with a fine pebbled
texture on the outer surface. Trapezoidal outer contour shall tilt the refractor 18° from
vertical.
The refractor shall be tempered borosilicate glass with a smooth outer surface flush with
the doorframe, and vertical inside f1utes. An optical injection molded (in lieu of glass)
refractor shall be provided if shown in the Drawings. It shall be identical in appearance
to the glass refractor and contain an ultra violet inhibitor.
A silicon rubber gasket shall be installed between the door frame and housing. A
neoprene gasket shall be provided between the junction box and housing. The entire
’luminaire shall be weathertight.
Reflector shall be one piece hydroformed aluminium. The bottom surface shall he
finished in matte black to prevent any escape of upward light.
END OF SECTION (16520
1.01 WORK INCLUDED
A. Description: Furnish, install, connect and test the following, all as shown on the
drawings and specified here in:
1. Street lighting poles, luminaries, fittings and accessories.
2. Free standing bollards and luminaries.
3. Wall mounted exterior light fittings and luminaries.
B. Related Work Specified Elsewhere:
1. Section of Quality Control
2. Section of Traffic Signal System
3. Section of Concrete Rein for cement
4. Section of Precast Structural Concrete
5. Section of Painting
6. Section of General Provisions for Elecrical Work
7. Section of Basic Materials and Methods
8. Section of Power System Warning Signs and cable Identification.
9. Section of Conductors and Accessories
10. Section of Grounding and Bonding
11. Section of Lighting Fixtures
12. Section of Roadway Lighting Systems
1.02 APPLICABLE CODES AND STANDARDS
The following codes and standards are intended to provide an acceptable level of quality
for materials and products. The Contractor may propose alternative codes and standards
providing them giving an equivalent degree of quality as the referenced codes an
standards and are submitted to the owner consultant engineer for reviewing and approval
in advance of their use. All equipment furnished under these specifications which is not
determined or having any restrictions in local regulations concerning with electrical
affairs shall conform to the appropriate standards of:
1. NEC – National Electrical Code
2. NEMA – National Electrical Manufacturers Association
3. IES – Illuminating Engineering Society
4. ANSI – American National Standards Institute
5. ASTM – American Society for Testing and Materials
6. NFPA - National fire Protection Association.
1.03 SUBMITTALS
The following shall be submitted to the owner consultant engineer for approval prior to
commencing work:
2
l. A list identifying manufacturers and all material and equipment items proposed for use
in the work of this Section.
2. Manufacturers’ specifications, data sheets, shop drawings, installation instructions,
operation instructions, and maintenance and repair recommendations for each item.
3.Manufacturers’ Certificates of Compliance: To indicate that each material and
equipment item complies with the requirements of the specifications. Any test results
shall also be submitted, in report form.
4.Recommended list of spare parts.
1.04 PRODUCT DELIVERY, STORAGE AND HANDLING
A. All fittings, panels, luminaires and accessories shall be boxed, crated, and
wrapped, or otherwise suitably protected during delivery, storage and handling.
On delivery, they shall be stored in a secure and dry facility.
B. All poles shall be suitably packed during transportation and protected from
abrasion, impact and other damage.
1.05 SPARE PARTS
The Contractor shall not use any spare parts furnished under the contract with the
equipment, without the owner consultant engineer approval. These shall be stored as
directed by the owner consultant engineer.
1.06 QUALITY CQNTROL
The Contractor shall be responsible for the quality of all materials used in the work in
accordance with section of quality control. The Contractor shall develop a supplier
quality control program for review covering procedures for shop inspection and field
supervision to ensure acceptability of materials, fabrication, welding, galvanizing, and
installation.
PART 2 - PRODUCTS
2.01 GENERAL
A. All goods and products covered by these specifications shall be procured, when
available, from an approved manufacturer. Procurement of all goods and
products shall be approved by the owner consultant engineer.
B. All goods and products shall be new and designed for operation in a corrosive
atmosphere at 2300 m above sea level, an ambient temperature of 40 °C and
humidity of 90%.
2.02 CRITERIA FOR LIGHTING PQLE ASSEMBLIES
These criteria apply to aluminium, steel and fiber- glass lighting pole, bollards, & arm
assemblies.
3
A. Poles and mast arms shall be designed and fabricated for service under the
following conditions:
- Wind Speed…………………………….180 km/hr
- Temperature range……………………. 0 C° to 50 C°
- Relative humidity range……………… 10% to 100%
B. All elements of lighting pole assemblies shall be designed and fabricated to
preclude the entry of water.
C. Smooth raceways shall be provided inside all elements for internal wiring.
D. All materials shall be anti- corrosive type.
2.03 ALUMINIUM POLES & ARMS:
A. Poles
1. Poles shall be one-piece seamless tapered tubes fabricated by anticorrosive
material Poles shall have full-length tapers with round or
polygonal cross sections.
2. Each pole shall be provided with a reinforced oval handhole, minimum
size of 100mm x 165mm, located on the side away from traffic. Wrought
aluminium covers conforming to ASTM B 26 and stainless steel tamper
proof screws for attaching covers to handhole shall be provided.
3. Each pole shall be provided with a copper alloy grounding lug, readily
accessible from the handhole.
4. Each pole shall be provided with a removable cast aluminium pole cap,
held securely in place.
B. Arms:
1. Arms shall be single member or truss-type as indicated per drawings and
shall be made.of aluminium alloy conforming to ASTM anti-corrosive
type and shall have a suitable mechanical strength.
2. Provisions shall be made for bolting either a single member or truss-type
mast arms to poles. Wrought aluminium bolting plates aluminium alloy,
shall be welded to poles; matching plates shall be welded to arms.
3. Bolts and nuts, or tube nuts, shall be of .type 304 stainless steel material
conforming to ASTM -A 276.
C. Anchor Base
1. The anchor base shall be die cast anti corrosive aluminium, conforming
to the requirements of ASTM B 85. The aluminium alloy shall be
selected to give a minimum yield strength of 290 MPa. The base shall
telescope the pole and shall be welded to the pole by two circumferencial
welds, one on the inside bottom and one on the outside top. The base
shall be designed and welded to develop the full strength of the pole.
4
D. Welding of Aluminium
1. All welding shall be performed by welders who have provided
certifications that they are fully qualified in the welding of aluminium.
Certifications shall be acceptable to the owner consultant.
2. The inert gas shield arc method shall be used. Welds shall be free from
cracks and porosity.
E. Hardware
A1I. mounting and fastening hardware use in conjunction with aluminium poles and
arms shall be of type 304 stainless steel material conforming to ASTN A 276.
F. Finish
Aluminium poles and mast arms shall he finished with a uniform nonspecular surface,
the natural colour of Aluminium. Anodizing shall be applied to the aluminium for
surface protection and long life. Surfaces shall be anodized to form an oxide film of not
less than 22 micron, after which a proper sealing process is required. Finish shall be
smooth, uniform and free from disfiguring scratches, dents and other detrimental
markings.
2. 04 STEEL POLES & ARMS
A. Poles
1. Poles shall be tapered galvanized steel anti- corrosive type tubes
fabricated from minimum 3mm thick steel conforming to specification
ASTN A595 or A36. The pole shall be tapered uniformly for its full
length. One longitudinal electric arc weld will be permitted; no transverse
welds will be permitted. After welding, the pole shall be cold rolled to
flatten the weld. and to develop a minimum yield strength of 330 Mpa.
Poles shall have round or polygonal cross sections.
2. Each pole shall be provided with a reinforced oval handhole, minimum
size of 100mm x 165mm, located on the side away from traffic.
2.05 FIBERGLASS POLES AND ARMS
A. Poles
1. Poles shall be of fiberglass reinforced polyester (FRP), cylindrical or
conical. The pole surface shall be totally weather and corrosion resistant
in earth and air, completely smooth exterior, homogenous and nonporous.
No glass fibers shall appear at the outer surface, and the outer
0.5-1.0mm shall consist of pure polyester. A minimum of one layer of the
fiberglass-reinforced polyester shall be unidirectional. The poles shall be
available in any colour specified by the owner consultant the colour shall
be completely light stabilized and impregnated from the surface through
the thickness of the material.
5
2. Mast Pole tops shall be designed to receive the approved arm(s) and/or
luminaire (s).
The pole tops and the parts of the pole surface intended as assembly attachment points
for further accessories shall be reinforced with stainless steel wire mesh to prevent
loosening of fasteners in those particular areas.
3. Each lighting pole shall have a handhole access, fully integrated into the
surface of the pole. The handhole door shall be weatherproof, electrically
safe and tamper proof.
B. Arms
Mast arms shall be of galvanized steel, anodized aluminium or other compatible
corrosion resistant material, of length indicated in contract drawings.
C. Anchor Base
1. Pole base shall be a steel plate, which forms an integrated part of the
pole. The pole base shall have a welded vertical steel inner cone, which
extends into the bottom of the fiber-glass pole.
2. The steel plates shall conform to ASTM A-36 or approved equal. The
steel base plate shall be complete with holes pattern, as shown in the
drawings, for high tensile strength anchor bolts and one central hole for
cable entry.
D. Accessories
All steel accessories of the pole shall be hot dipped galvanized conforming to ASTM A-
123 or approved equal after completion of the fabrication. No further touching up,
finishing or modifications shall be carried out after galvanizing. The minimum thickness
of zinc coating shall be 500 g/sq.m. The galvanizing shall be carried out by total
immersion in a bath of molten zinc.
2.06 ANCHORS BOLTS
Anchor bolts shall be made from high strength steel having minimum yield strength of
345 MPa. The treaded portion shall be 150mm long. Other dimensions shall be as shown
on the drawings. Two hexagon nuts shall be furnished with each bolt; one for leveling
and one for fastening. The threads of the bolts and the hexagon nuts shall be hot-dipped
galvanized in accordance with ASTM A 153.
2.07 SLIP BASE INSERTS
A. Poles shall be fitted with slip base inserts when so indicated on the drawings.
B. The plates comprising the slip base insert shall be steel conforming to the
requirements of ASTM A 36. Alternatively, the bottom plate may be cast steel,
conforming to the requirements of ASTM A 27, Grade 70-40.
C. The steel plates shall be galvanized to ASTM A 123.
6
D. For poles with steel bases, nuts and bolts in slip base inserts shall be steel
conforming to ASTM A 325, galvanized to ASTM A 153; or alternatively, Type
304 stainless steel material conforming to ASTM A 276.
E. For poles with aluminium bases, nuts and bolts in slip base inserts shall be
stainless steel.
2.08 BOLLARDS
Bollards shall he manufactured to the dimensions shown, and the fasteners shall be of
the sizes shown, in the Contract Drawings. The bollard shaft shall be constructed of
heavy gauge, thick wall anti- corrosive alloy of aluminium in one seamless tube. The
.top cap shall be cast aluminium sealed against the weather and secured with a socket,
tamper-proof screw. The internal cast aluminium base plate shall be secured with four
(4) anchor bolts on a holt- circle. The polished-diffuser shall he polycarbonate and be
enc1osed by. Polycarbonate or aluminium louvers set at a 45 angle. The alignment rods
shall be cadmium-plated steel and the lamp holder shall be weather-proof ceramic
designed for firm lamp support.
The all-aluminium construction architectural surface shall be finished with a non lead
black baked acry1ic enamel or other se1ected finish. Painting shall be as specified in
Section of painting.
Outside dimensions and construction shall be in accordance with the detailed Contract
Drawings.
2.09 LUMINAIRES
A. General: Luminaires and a11 accessories shall comp1y with the requirements
specified below: and the luminaires shall be suitable for operation on 220V, 50Hz.
unless shown otherwise on the drawings.
Ballast shall conform with applicable requirements of ANSI C82-4 it should be
thermally protected, high power factor auto-regulator type with a minimum operating
power factor of 95%, Ballasts shall be suitable for operation within ± 10 percent
variation in voltage, and ±2 percent variation in lamp watts Luminaires shall be equally
distributed on 3 phase Luminaire type are specified in the following paragraphs:
B. Luminaire Types – Pole Mounted
1. Mounting height as per DWG: The luminaire shall house 250 watt HPS lamp and
shall have a one-piece die-cast aluminium – silicon alloy body to give maximum
resistance to corrosion. The control gear shall be integral within a separate
compartment of the luminaire housing. A porcelain lampholder shall be supplied with
a terminal block of non-hygroscopic material. The refractor of the luminaire shall be
prismatic heat resistant borosilicate glass, the prismatic formation to redirect the lamp
flux to provide a medium, A high purity brightened and anodized reflector shall be
housed in the luminaire.
Luminaire shall be gasketed to provide a weather proof seal with the lower rim of the
body and shall be supported by quick release stainless steel toggle catches. Filtered
breathing shall be provided for either thru a separate filter or thru filter gasket.
7
The luminaire shall be provided with a 250- watt high pressure sodium lamp. The ballast
shall be fitted with a capacitor to give a Power Factor correction of 0.95.
C. Luminaire Type – Bollard Mounted
Bollard lightings: 0.75 to 1.2 metre-mounting heights. The bollard shall have either a 70-
watt sodium lamp as required. The bollard shall be made to the dimensions and style
shown in the Drawings. The lampholder shall be weatherproof ceramic, designed for
firm lamp support.
Typical applications are for aesthetic and accent lighting, for example in landscaped
areas, parks, shopping arcades etc.
D. Luminaire Types – Wall Mounted
Wall mounted luminaires may be installed either inside the concrete block wall flush
with the surface or attached to the outer surface of the wall in the manner specified and
detailed in the Drawings. The housing for the luminaire shall be one-piece aluminium
casting of an alloy containing less than 0.3% copper to prevent corrosion when cast in
concrete.
A cast aluminium junction box may be attached to the luminaire housing and enclosed
by a removable cover. The interior volume of the junction box shall contain four
threaded taps, two with removable plugs. A temporary cover shall be furnished to keep
the housing clean until the electrical components are to be installed.
The luminaire door frame shall be one-piece aluminium casting with a fine pebbled
texture on the outer surface. Trapezoidal outer contour shall tilt the refractor 18° from
vertical.
The refractor shall be tempered borosilicate glass with a smooth outer surface flush with
the doorframe, and vertical inside f1utes. An optical injection molded (in lieu of glass)
refractor shall be provided if shown in the Drawings. It shall be identical in appearance
to the glass refractor and contain an ultra violet inhibitor.
A silicon rubber gasket shall be installed between the door frame and housing. A
neoprene gasket shall be provided between the junction box and housing. The entire
’luminaire shall be weathertight.
Reflector shall be one piece hydroformed aluminium. The bottom surface shall he
finished in matte black to prevent any escape of upward light.
END OF SECTION (16520
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