EXTERIOR LIGHTING
PART 1-GENERAL
1.01 RELATED DOCUMENTS:
A. Drawings and general provision of Contract: including General and
Supplementary Conditions and Division-1 Specification sections, apply to
work of this section.
B. Division-16 "Basic Electrical Materials and Methods" and other sections
apply to work specified in this section.
1.02 SUMMARY:
A. This section includes complete Exterior lighting fixtures, control gear,
mounting provisions, accessories and connection to circuit wiring and to
corresponding lighting control equipment.
B. Extent, location, and details of Exterior lighting fixture work are indicated on
drawings and in schedules.
C. Types of Exterior lighting fixtures in this section include the following:
1. High-intensity-discharge (HID).
Mercury-vapor.
Metal-halide.
High -pressure- sodium.
2. Fluorescent.
3. Incandescent.
4. Cold cathode
D. Design Layout: fixture layout has been determined from photometric data of
specified fixtures to achieve desired level and uniformity of illumination.
E. Related Sections: the following Division 16 Sections contain requirements
that relate to this Section:
1. Lighting dimming and control for modular dimmers, programmable
lighting control systems, time switches, photoelectric relays, occupancy
sensors, power relays, and contactors.
1.03 DEFINITIONS:
A. Fixture: a complete lighting unit. Fixtures include lamps and parts required to
distribute the light, position and protect lamps, and connect lamps to the
power supply.
B. Luminaire: fixture.
2
C. Rated Average Life: the time after which the average of a lamp type lumen
output has reached down to 80% of its initial 100 hr value as specified, under
normal conditions.
1.04 SUBMITTALS:
A. .Equipment Data: submit complete data for approval including, but not
limited to, the following:
- Detailed literature, in English, for each type of luminaire of fixture, lamp
and control gear including manufacturer’s name, catalogue number,
rating, material specification, overall dimensions, operating
characteristics and principles, and any modification to a standard product
if applicable.
- Detailed specification and drawings for each column type including
shape, base/mounting flanges, bolts, nuts etc, cross-sections, design
criteria and calculations, brackets, finishes, provisions for cabling,
cut-out or circuit-breaker etc.
- Photometric data for lighting calculations including polar curves,
coefficients of utilization, efficiency and depreciation factors.
B. Shop and Construction Drawings: submit drawings for approval including,
but not limited to, the following:
- Layout of equipment in exact positions with mounting and construction
details, concrete foundation dimensions and reinforcement, routing and
sections of duct-banks and trenches, backfill and packing material,
earthing rods etc.
- Cabling and wiring diagrams, single line drawings, loads, phase
distribution, protection and control, earthing and the like.
- Calculations of illumination levels and glare, based on CIE methods.
C. Samples: submit fully equipped sample of luminaire or other materials or
components if required by the Engineer.
D. Maintenance Date: submit maintenance data and parts list for each Exterior
lighting fixture and accessory, including “trouble-shooting” maintenance
guide. Include that data, product data, and shop drawings in a maintenance
manual, in accordance with general requirements of Division 1.
1.05 QUALITY ASSURANCE:
A. Manufacturer's Qualifications: firms regularly engaged in manufacture of
interior lighting fixtures of sizes, types and ratings required, whose products
have been in satisfactory use in similar service for not less than 5 years.
B. Fixture Design and Standards: the Specification and the Drawings are a guide
to the selection of lighting characteristics and lighting fixtures, giving general
features of construction, materials, method of installation and conditions of
operation. Unless otherwise specified, fixtures are to be manufacturer's
standard series, designed and manufactured for the purpose and application
required, generally in accordance with the Schedule of Lighting Fixtures and
complying with IEC 598 and CISPR 15.
3
C. Special Listing and Labeling: provide fixtures for use in damp or wet
locations, underwater, and recessed in combustible construction specifically
listed and labeled for such use. Provide fixtures for use in hazardous
(classified) locations that are listed and labeled for the specific hazard.
D. Special Project Warranty: submit a warranty, mutually executed by
manufacturer and the Installer, agreeing to replace rechargeable system
batteries that fail in materials of workmanship within the special project
warranty period specified below. This warranty is in addition to, and not a
limitation of, other rights and remedies the Employer may have under the
Contract Documents.
1. Special Project Warranty Period: 10 years, beginning on the date of
Substantial Completion. A full warranty shall apply for the first year of
the period, and a prorate warranty for the last 9 years.
E. Installer's Qualifications: firms with at least 3 years of successful installation
experience on projects with interior lighting fixture work similar to that
required for this project.
F. Electrical Code Compliance: Comply with applicable local code
requirements of the authority having jurisdiction or other code applicable to
Installation, and construction of interior building lighting fixtures approved
for the project and as referenced in pertinent specification in this section.
1.06 DELIVERY. STORAGE AND HANDLING:
A. Deliver Exterior lighting fixtures in factory-fabricated containers or
wrappings, which properly protect fixtures from damage.
B. Store exterior lighting fixtures in original packaging. Store inside
well-ventilated area protected from weather, moisture, soiling, extreme
temperatures, humidity, laid flat and blocked off ground.
C. Handle Exterior lighting fixtures carefully to prevent damage, breaking, and.
scoring of finishes. Do not install damaged units or components; replace with
new.
1.07 SEQUENCING AND SCHEDULING:
A. Coordinate with other work including wires/cables, electrical boxes and
fittings, and raceways, to properly interface installation of interior lighting
fixtures with other work.
B. Sequence Exterior lighting installation with other work to minimize
possibility of damage and soiling during remainder of construction.
1.08 EXTRA MATERIALS
A. Furnish extra materials matching products installed, as described below,
packaged with protective covering for storage, and identified with labels
describing contents. Deliver extra materials to the Owner.
1. Complete Fixtures: a quantity equal to 10 percent of installed units of
types shown on drawings for Exterior lighting:
4
2. Lamps: 10 lamps for each 100 of each type and rating installed. Furnish at
least I of each type.
3. Plastic Diffusers and Lenses: I for each 100 of each type and rating
installed. Furnish at least I of each type.
4. Ballasts: I for each 100 of each type and rating installed. Furnish at least I
of each type.
5. Globes and Guards: 1 for each 20 of each type and rating installed.
Furnish at least 1 of each type.
PART 2-PRODUCTS AND MATERIALS:
2.01 MANUFACTURERS:
A. Available Manufacturers: subject to compliance with requirements,
specifications, design drawings and regulations.
2.02 LIGHTING COLUMNS
A. Construction: columns are to be circular section, tapered, formed sheet steel,
electrically welded, and of height specified. Columns up to 12m height are to
be one piece section. Columns above 12m and up to 20m height may be
supplied in two piece sections, of the slip joint type with sufficient overlap to
ensure correct vertical alignment of column after assembly. Columns are to
have minimum wall thickness of 3mm at base. Sheet steel is to have
minimum rupturing resistance or 37kg/mm2 and minimum yield strength of
24kg/mm2.
B. Top of Column is to be designed to receive single or double arm brackets or
other arrangement required, to support number of luminaries shown on the
Drawings. Bracket arrangement is to be designed to ensure that failure, due to
wind induced oscillations, does not occur and that rotation from desired
alignment is not possible.
C. Column Design: column cross-section, thickness of steel, joints, welds, bolts
etc. are to be designed to withstand gust wind velocity of 160 km/hr blowing
in the most unfavorable direction at a height 10m above ground level, with
column fully equipped. Fatigue of steel is in no case to exceed half elasticity
limit, taking into account dynamic stresses due to vibrations. Steel flange
plate, of adequate thickness, is to be solidly welded onto lower edge of
column as shown on Drawings, and is to have specified number of holes for
holding down bolts together with central cable access hole not less than
150mm diameter.
D. Access Door of weatherproof construction is to be positioned at column base
and is to be suitable sized to insert and service the supply cable terminations
and protective device. Door is to be flush fitting with retaining mechanism
and positive locking arrangement with removable hexagonal key. Column is
to be reinforced at door opening. Opposite each door, a non-hygroscopic
baseboard of suitable size to accept appropriate equipment is to be fixed
inside of column by purpose-made brackets. Stainless steel earthing stud with
washers and nuts is to be welded inside the column near the access door.
5
E. Finish: welds are to be smooth with spatter removed, inside and outside
surfaces of column are to be cleaned by pickling or blasting and are to be free
of grease. Steel components or columns are to be hot-dip galvanized after
fabrication. Minimum thickness of zinc coating is to be 500 g/m2 on both
inside and outside surfaces of column. Galvanizing is to be to NFA 91 121
(june 1958) or BS 729. Any damage to galvanizing is to be rectified during
erection by wire brushing affected area and treating with approved rust
converter to the satisfaction of the Engineer. Flange plate inside and outside
of column base are to be coated with heavy bitumen paint prior to erection.
F. Protection And Wiring: one circuit breaker, single pole 16A is to be provided
for each phase leading to a luminaire. Circuit breakers are to be compensated
and rated for 55 deg. C ambient with interrupting capacity of at least 10 KA,
and are to be mounted in weatherproof enclosure at baseboard.
2.03 ROAD LIGHTING LUMINAIRES:
A. Construction: totally enclosed, dust protected and splash proof, conforming
to at least IP54 of IEC 529, shock resistant and specially designed to house
required lamps, electrical gear and accessories. Body is to be corrosion
resistant, extruded, pressure die-cast or fabricated aluminum alloy.
B. Finish: exposed metal parts of luminaries are to be factory finished, stove
enameled, with suitable corrosion resisting paint capable of resisting heat
emitted by lamp during continuous operation, and under full sunlight
conditions. Colour is to be agreed with the Engineer.
C. Mirror Reflectors: 99.5% purity,. Glazed and anodized aluminum or die-cast,
super-purity aluminum vapor-deposited, and coated with transparent layer of
silicon protection against wiping.
D. Luminaire Protectors: heat and shock resistant glass, mounted into suitable
frame assembly fixed to body by captive screws, and secured by extra safety
clamps to allow replacement of protector and reflector. Ozone resistant
ethylene propylene or approved equivalent rubber is to ensure sealing of the
front glass.
E. Lamp Sockets: high grade porcelain, mounted in support brackets with
provision to adjust lamps vertically and axially. Lamp support and locking
system are to grip and prevent lamp movement in operation.
F. Ballast and Control Gear: are to be mounted in luminaire in separate
compartment isolated from lamp, and with enclosed terminal blocks fitted
with quick-disconnect electrical leads. Where required, control gear is to be
contained in the prewired box, having an enclosure of IP 65, and mounted on
luminaire ring separately from luminaries. Control gear is to be plug in type
for operation at 230 V, a.c. single phase, 50 Hz, ballast is to be specially
selected for particular type of lamps used, and lamps are to be able to start
with at test +/-10% variation of nominal voltage and continue in normal
operation with dips attaining 20% for four seconds. Control gear losses are
not to exceed 10% of normal lamp wattage. RFI suppression device is to be
provided.. Power factor is to be compensated to at least 0.9 lagging.
6
G. HRC Fuse Cartridges, suitably rated and conforming with IEC 269 or BS 88,
are to be provided, complete with base, for protection of the luminaire. Fuse
is to be rated to withstand starting current and is to be preferably located in
control gear enclosure.
H. Terminal Blocks: suitable screw-tunnel type, clearly marked with
arrangement to facilitate maintenance, quick replacement and easy
disconnection of individual components.
I. Lamps: to be number and types shown on Drawings and as described in the
Specification.
2.04 FLOODLIGHTS:
A. Type: totally enclosed type, weather, dust and shock resistant, IP 65 of IEC
529.
B. Housing: high pressure die-cast aluminum alloy, closed on front by hinged
framed protector highly resistant to thermal and mechanical shocks, and set in
position by at least eight heavy duty stainless steel spring clamps with silicon
sealing gasket. Enclosure is to be in accordance with IEC Publication 598-2-5
and BS 4533-102.5, and is to be suitable for operation in an ambient
temperature of 70 deg. C.
C. Reflectors: high purity (over 99% reflectance) anodized aluminum, secured
in precision aligned internal tracks to provide beam distribution required.
D. Connection Box: is to be located at rear of floodlight body with gland
connections to accept as a minimum 4mm2 PVC/PVC three core cable. Lamp
and control gear are to be mounted in two separate and isolated
compartments.
E. Control Gear: plug-in type, 230 V, 50 Hz, power factor compensated to at
least 0.9 lagging. Ballasts and ignitors are to be type specially adapted for
make of lamps selected. Ignitors are to be electronic thyristor type. Lamp is to
be able to start with at least +/-10% line voltage, and with normal operation
dips up to 20% for four seconds. Compensation is to ensure that there is no
large increase in operating current during starting. Control gear losses are not
to exceed 10% . Cables for internal wiring in control gear compartments are
to be single core 2.5 mm2 copper conductors with high temperature
insulation and sheath.
F. Finish: exposed metal parts of floodlights are to be painted with corrosion
and heat resistant paint, resisting operating temperatures attained in direct
sunlight while lamp is burning.
G. Mounting: floodlights are to be located as shown on the Drawings and
mounted on specially designed brackets to allow swiveling in any desired
direction and locking firmly in final position. Protractor scale is to be
provided for accurate setting.
H. Earthing Terminals: bolted earthing terminal is to be provided in each fitting.
7
PART 3- FIELD AND INSTALLATION WORK
3.01 INSTALLATION:
A. Equipment: install equipment to be readily accessible for operation,
maintenance and repair. Minor deviations from the Drawings may be made to
accomplish this but no changes are to be made without the approval of the
Engineer.
B. Column Bases: install columns on concrete bases as detailed on the
Drawings. Before commencement of construction, ensure that bases are
suitable for column installation. Holding down and plumb adjusting nuts,
washers, locknuts are to be stainless steel or cadmium plated.
C. Columns: erect columns so that luminaries are located on a line parallel to the
cortical profile of road. Alignment of columns, both horizontally and
vertically, is to be secured to the satisfaction of the Engineer.
D. Mounting Adjustments: after demonstrating to the Engineer that specified
lighting requirements have been met, carry out final setting and locking in
position of the floodlights.
E. Cabling, Conduits And Ductwork: carry out in accordance with sections of
the specification. Cable ducts are to be directly buried except at crossings
with other service work or roads.
F. Earthing : carry out in accordance with the specification
3.02 INSPECTION AND TESTS ON SITE
A. Visual Inspection is to include inspection of condition of each piece of
equipment, quality of workmanship, alignment, perpendicularity, labeling
and the like, all in conformance with the specification.
B. Insulation Resistance And Continuity Tests are to be carried out on each
circuit and piece of equipment before energization, with circuit breakers in
the open position and lamps not installed.
C. Operational Tests: are to be carried out on all circuit breakers and control
gear, with lamps installed, including recording voltage at terminals of ballasts
on final columns of each circuit and at distribution panel or the like.
D. Performance Tests: are to be carried out after 100 hours normal operation,
and are to include measurement of lighting levels and uniformities on
required illuminated surfaces.
E. Other Tests: are to be carried out as required by the Engineer to verify
conformity with the specification.
F. Earthing Resistance Test: are to include measurement of earth electrode
resistance at final points of circuits and continuity of protective conductors.
G. Results of Tests: are to be recorded on site and signed by witnessing parties.
H. Test Equipment And Labor: provide equipment and labor including
instruments and complete provisions for carrying out tests.
END OF SECTION 16515
PART 1-GENERAL
1.01 RELATED DOCUMENTS:
A. Drawings and general provision of Contract: including General and
Supplementary Conditions and Division-1 Specification sections, apply to
work of this section.
B. Division-16 "Basic Electrical Materials and Methods" and other sections
apply to work specified in this section.
1.02 SUMMARY:
A. This section includes complete Exterior lighting fixtures, control gear,
mounting provisions, accessories and connection to circuit wiring and to
corresponding lighting control equipment.
B. Extent, location, and details of Exterior lighting fixture work are indicated on
drawings and in schedules.
C. Types of Exterior lighting fixtures in this section include the following:
1. High-intensity-discharge (HID).
Mercury-vapor.
Metal-halide.
High -pressure- sodium.
2. Fluorescent.
3. Incandescent.
4. Cold cathode
D. Design Layout: fixture layout has been determined from photometric data of
specified fixtures to achieve desired level and uniformity of illumination.
E. Related Sections: the following Division 16 Sections contain requirements
that relate to this Section:
1. Lighting dimming and control for modular dimmers, programmable
lighting control systems, time switches, photoelectric relays, occupancy
sensors, power relays, and contactors.
1.03 DEFINITIONS:
A. Fixture: a complete lighting unit. Fixtures include lamps and parts required to
distribute the light, position and protect lamps, and connect lamps to the
power supply.
B. Luminaire: fixture.
2
C. Rated Average Life: the time after which the average of a lamp type lumen
output has reached down to 80% of its initial 100 hr value as specified, under
normal conditions.
1.04 SUBMITTALS:
A. .Equipment Data: submit complete data for approval including, but not
limited to, the following:
- Detailed literature, in English, for each type of luminaire of fixture, lamp
and control gear including manufacturer’s name, catalogue number,
rating, material specification, overall dimensions, operating
characteristics and principles, and any modification to a standard product
if applicable.
- Detailed specification and drawings for each column type including
shape, base/mounting flanges, bolts, nuts etc, cross-sections, design
criteria and calculations, brackets, finishes, provisions for cabling,
cut-out or circuit-breaker etc.
- Photometric data for lighting calculations including polar curves,
coefficients of utilization, efficiency and depreciation factors.
B. Shop and Construction Drawings: submit drawings for approval including,
but not limited to, the following:
- Layout of equipment in exact positions with mounting and construction
details, concrete foundation dimensions and reinforcement, routing and
sections of duct-banks and trenches, backfill and packing material,
earthing rods etc.
- Cabling and wiring diagrams, single line drawings, loads, phase
distribution, protection and control, earthing and the like.
- Calculations of illumination levels and glare, based on CIE methods.
C. Samples: submit fully equipped sample of luminaire or other materials or
components if required by the Engineer.
D. Maintenance Date: submit maintenance data and parts list for each Exterior
lighting fixture and accessory, including “trouble-shooting” maintenance
guide. Include that data, product data, and shop drawings in a maintenance
manual, in accordance with general requirements of Division 1.
1.05 QUALITY ASSURANCE:
A. Manufacturer's Qualifications: firms regularly engaged in manufacture of
interior lighting fixtures of sizes, types and ratings required, whose products
have been in satisfactory use in similar service for not less than 5 years.
B. Fixture Design and Standards: the Specification and the Drawings are a guide
to the selection of lighting characteristics and lighting fixtures, giving general
features of construction, materials, method of installation and conditions of
operation. Unless otherwise specified, fixtures are to be manufacturer's
standard series, designed and manufactured for the purpose and application
required, generally in accordance with the Schedule of Lighting Fixtures and
complying with IEC 598 and CISPR 15.
3
C. Special Listing and Labeling: provide fixtures for use in damp or wet
locations, underwater, and recessed in combustible construction specifically
listed and labeled for such use. Provide fixtures for use in hazardous
(classified) locations that are listed and labeled for the specific hazard.
D. Special Project Warranty: submit a warranty, mutually executed by
manufacturer and the Installer, agreeing to replace rechargeable system
batteries that fail in materials of workmanship within the special project
warranty period specified below. This warranty is in addition to, and not a
limitation of, other rights and remedies the Employer may have under the
Contract Documents.
1. Special Project Warranty Period: 10 years, beginning on the date of
Substantial Completion. A full warranty shall apply for the first year of
the period, and a prorate warranty for the last 9 years.
E. Installer's Qualifications: firms with at least 3 years of successful installation
experience on projects with interior lighting fixture work similar to that
required for this project.
F. Electrical Code Compliance: Comply with applicable local code
requirements of the authority having jurisdiction or other code applicable to
Installation, and construction of interior building lighting fixtures approved
for the project and as referenced in pertinent specification in this section.
1.06 DELIVERY. STORAGE AND HANDLING:
A. Deliver Exterior lighting fixtures in factory-fabricated containers or
wrappings, which properly protect fixtures from damage.
B. Store exterior lighting fixtures in original packaging. Store inside
well-ventilated area protected from weather, moisture, soiling, extreme
temperatures, humidity, laid flat and blocked off ground.
C. Handle Exterior lighting fixtures carefully to prevent damage, breaking, and.
scoring of finishes. Do not install damaged units or components; replace with
new.
1.07 SEQUENCING AND SCHEDULING:
A. Coordinate with other work including wires/cables, electrical boxes and
fittings, and raceways, to properly interface installation of interior lighting
fixtures with other work.
B. Sequence Exterior lighting installation with other work to minimize
possibility of damage and soiling during remainder of construction.
1.08 EXTRA MATERIALS
A. Furnish extra materials matching products installed, as described below,
packaged with protective covering for storage, and identified with labels
describing contents. Deliver extra materials to the Owner.
1. Complete Fixtures: a quantity equal to 10 percent of installed units of
types shown on drawings for Exterior lighting:
4
2. Lamps: 10 lamps for each 100 of each type and rating installed. Furnish at
least I of each type.
3. Plastic Diffusers and Lenses: I for each 100 of each type and rating
installed. Furnish at least I of each type.
4. Ballasts: I for each 100 of each type and rating installed. Furnish at least I
of each type.
5. Globes and Guards: 1 for each 20 of each type and rating installed.
Furnish at least 1 of each type.
PART 2-PRODUCTS AND MATERIALS:
2.01 MANUFACTURERS:
A. Available Manufacturers: subject to compliance with requirements,
specifications, design drawings and regulations.
2.02 LIGHTING COLUMNS
A. Construction: columns are to be circular section, tapered, formed sheet steel,
electrically welded, and of height specified. Columns up to 12m height are to
be one piece section. Columns above 12m and up to 20m height may be
supplied in two piece sections, of the slip joint type with sufficient overlap to
ensure correct vertical alignment of column after assembly. Columns are to
have minimum wall thickness of 3mm at base. Sheet steel is to have
minimum rupturing resistance or 37kg/mm2 and minimum yield strength of
24kg/mm2.
B. Top of Column is to be designed to receive single or double arm brackets or
other arrangement required, to support number of luminaries shown on the
Drawings. Bracket arrangement is to be designed to ensure that failure, due to
wind induced oscillations, does not occur and that rotation from desired
alignment is not possible.
C. Column Design: column cross-section, thickness of steel, joints, welds, bolts
etc. are to be designed to withstand gust wind velocity of 160 km/hr blowing
in the most unfavorable direction at a height 10m above ground level, with
column fully equipped. Fatigue of steel is in no case to exceed half elasticity
limit, taking into account dynamic stresses due to vibrations. Steel flange
plate, of adequate thickness, is to be solidly welded onto lower edge of
column as shown on Drawings, and is to have specified number of holes for
holding down bolts together with central cable access hole not less than
150mm diameter.
D. Access Door of weatherproof construction is to be positioned at column base
and is to be suitable sized to insert and service the supply cable terminations
and protective device. Door is to be flush fitting with retaining mechanism
and positive locking arrangement with removable hexagonal key. Column is
to be reinforced at door opening. Opposite each door, a non-hygroscopic
baseboard of suitable size to accept appropriate equipment is to be fixed
inside of column by purpose-made brackets. Stainless steel earthing stud with
washers and nuts is to be welded inside the column near the access door.
5
E. Finish: welds are to be smooth with spatter removed, inside and outside
surfaces of column are to be cleaned by pickling or blasting and are to be free
of grease. Steel components or columns are to be hot-dip galvanized after
fabrication. Minimum thickness of zinc coating is to be 500 g/m2 on both
inside and outside surfaces of column. Galvanizing is to be to NFA 91 121
(june 1958) or BS 729. Any damage to galvanizing is to be rectified during
erection by wire brushing affected area and treating with approved rust
converter to the satisfaction of the Engineer. Flange plate inside and outside
of column base are to be coated with heavy bitumen paint prior to erection.
F. Protection And Wiring: one circuit breaker, single pole 16A is to be provided
for each phase leading to a luminaire. Circuit breakers are to be compensated
and rated for 55 deg. C ambient with interrupting capacity of at least 10 KA,
and are to be mounted in weatherproof enclosure at baseboard.
2.03 ROAD LIGHTING LUMINAIRES:
A. Construction: totally enclosed, dust protected and splash proof, conforming
to at least IP54 of IEC 529, shock resistant and specially designed to house
required lamps, electrical gear and accessories. Body is to be corrosion
resistant, extruded, pressure die-cast or fabricated aluminum alloy.
B. Finish: exposed metal parts of luminaries are to be factory finished, stove
enameled, with suitable corrosion resisting paint capable of resisting heat
emitted by lamp during continuous operation, and under full sunlight
conditions. Colour is to be agreed with the Engineer.
C. Mirror Reflectors: 99.5% purity,. Glazed and anodized aluminum or die-cast,
super-purity aluminum vapor-deposited, and coated with transparent layer of
silicon protection against wiping.
D. Luminaire Protectors: heat and shock resistant glass, mounted into suitable
frame assembly fixed to body by captive screws, and secured by extra safety
clamps to allow replacement of protector and reflector. Ozone resistant
ethylene propylene or approved equivalent rubber is to ensure sealing of the
front glass.
E. Lamp Sockets: high grade porcelain, mounted in support brackets with
provision to adjust lamps vertically and axially. Lamp support and locking
system are to grip and prevent lamp movement in operation.
F. Ballast and Control Gear: are to be mounted in luminaire in separate
compartment isolated from lamp, and with enclosed terminal blocks fitted
with quick-disconnect electrical leads. Where required, control gear is to be
contained in the prewired box, having an enclosure of IP 65, and mounted on
luminaire ring separately from luminaries. Control gear is to be plug in type
for operation at 230 V, a.c. single phase, 50 Hz, ballast is to be specially
selected for particular type of lamps used, and lamps are to be able to start
with at test +/-10% variation of nominal voltage and continue in normal
operation with dips attaining 20% for four seconds. Control gear losses are
not to exceed 10% of normal lamp wattage. RFI suppression device is to be
provided.. Power factor is to be compensated to at least 0.9 lagging.
6
G. HRC Fuse Cartridges, suitably rated and conforming with IEC 269 or BS 88,
are to be provided, complete with base, for protection of the luminaire. Fuse
is to be rated to withstand starting current and is to be preferably located in
control gear enclosure.
H. Terminal Blocks: suitable screw-tunnel type, clearly marked with
arrangement to facilitate maintenance, quick replacement and easy
disconnection of individual components.
I. Lamps: to be number and types shown on Drawings and as described in the
Specification.
2.04 FLOODLIGHTS:
A. Type: totally enclosed type, weather, dust and shock resistant, IP 65 of IEC
529.
B. Housing: high pressure die-cast aluminum alloy, closed on front by hinged
framed protector highly resistant to thermal and mechanical shocks, and set in
position by at least eight heavy duty stainless steel spring clamps with silicon
sealing gasket. Enclosure is to be in accordance with IEC Publication 598-2-5
and BS 4533-102.5, and is to be suitable for operation in an ambient
temperature of 70 deg. C.
C. Reflectors: high purity (over 99% reflectance) anodized aluminum, secured
in precision aligned internal tracks to provide beam distribution required.
D. Connection Box: is to be located at rear of floodlight body with gland
connections to accept as a minimum 4mm2 PVC/PVC three core cable. Lamp
and control gear are to be mounted in two separate and isolated
compartments.
E. Control Gear: plug-in type, 230 V, 50 Hz, power factor compensated to at
least 0.9 lagging. Ballasts and ignitors are to be type specially adapted for
make of lamps selected. Ignitors are to be electronic thyristor type. Lamp is to
be able to start with at least +/-10% line voltage, and with normal operation
dips up to 20% for four seconds. Compensation is to ensure that there is no
large increase in operating current during starting. Control gear losses are not
to exceed 10% . Cables for internal wiring in control gear compartments are
to be single core 2.5 mm2 copper conductors with high temperature
insulation and sheath.
F. Finish: exposed metal parts of floodlights are to be painted with corrosion
and heat resistant paint, resisting operating temperatures attained in direct
sunlight while lamp is burning.
G. Mounting: floodlights are to be located as shown on the Drawings and
mounted on specially designed brackets to allow swiveling in any desired
direction and locking firmly in final position. Protractor scale is to be
provided for accurate setting.
H. Earthing Terminals: bolted earthing terminal is to be provided in each fitting.
7
PART 3- FIELD AND INSTALLATION WORK
3.01 INSTALLATION:
A. Equipment: install equipment to be readily accessible for operation,
maintenance and repair. Minor deviations from the Drawings may be made to
accomplish this but no changes are to be made without the approval of the
Engineer.
B. Column Bases: install columns on concrete bases as detailed on the
Drawings. Before commencement of construction, ensure that bases are
suitable for column installation. Holding down and plumb adjusting nuts,
washers, locknuts are to be stainless steel or cadmium plated.
C. Columns: erect columns so that luminaries are located on a line parallel to the
cortical profile of road. Alignment of columns, both horizontally and
vertically, is to be secured to the satisfaction of the Engineer.
D. Mounting Adjustments: after demonstrating to the Engineer that specified
lighting requirements have been met, carry out final setting and locking in
position of the floodlights.
E. Cabling, Conduits And Ductwork: carry out in accordance with sections of
the specification. Cable ducts are to be directly buried except at crossings
with other service work or roads.
F. Earthing : carry out in accordance with the specification
3.02 INSPECTION AND TESTS ON SITE
A. Visual Inspection is to include inspection of condition of each piece of
equipment, quality of workmanship, alignment, perpendicularity, labeling
and the like, all in conformance with the specification.
B. Insulation Resistance And Continuity Tests are to be carried out on each
circuit and piece of equipment before energization, with circuit breakers in
the open position and lamps not installed.
C. Operational Tests: are to be carried out on all circuit breakers and control
gear, with lamps installed, including recording voltage at terminals of ballasts
on final columns of each circuit and at distribution panel or the like.
D. Performance Tests: are to be carried out after 100 hours normal operation,
and are to include measurement of lighting levels and uniformities on
required illuminated surfaces.
E. Other Tests: are to be carried out as required by the Engineer to verify
conformity with the specification.
F. Earthing Resistance Test: are to include measurement of earth electrode
resistance at final points of circuits and continuity of protective conductors.
G. Results of Tests: are to be recorded on site and signed by witnessing parties.
H. Test Equipment And Labor: provide equipment and labor including
instruments and complete provisions for carrying out tests.
END OF SECTION 16515
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