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Each luminaire shall be furnished with an internally mounted 480 volt ballast. The ballast shall be a high reactance, high power factor type, with power factor correcting capacitor. Power factor to be maintained at 80% or above through lamp life. When operating within + or - 5% line voltage, lamp wattage must be maintained within the ANSI defined trapezoidal limits for the specified lamp. Ballast losses shall not exceed 30% of the rated lamp wattage.
LUMINAIRE, 100W HPS, 480V

COBRA STYLE

I.
Quantity

The base bid shall include the indicated number of high pressure sodium (HPS) luminaires
(100W) complete with high reactance type ballast and 100 watt HPS lamps wired and erected
as hereinafter specified.

II.
Material


a.
Luminaire - The luminaire shall be suitable for attachment by means of a slip-fitter
connection to a 2" IPS bracket. The slip-fitter shall include means for securely
attaching the luminaire and shall also provide for adjustment of approximately 5
degrees above or below horizontal. Slip-fitter bolts shall be a minimum of 3/8"
diameter. The slip-fitter shall be totally enclosed in luminaire housing.

Each luminaire shall be furnished with an internally mounted 480 volt
ballast. The ballast shall be a high reactance, high power factor type, with
power factor correcting capacitor. Power factor to be maintained at 80% or
above through lamp life. When operating within + or - 5% line voltage, lamp
wattage must be maintained within the ANSI defined trapezoidal limits for
the specified lamp. Ballast losses shall not exceed 30% of the rated lamp
wattage.

The Ballast shall be copper wound and have Class H insulation system.
Core laminations shall be M19 grade magnetic steel. Core-coil, starting aid
and capacitor shall be capable of operating for a six month period during a
short circuit failure, lamp open or end-of-life cycle without any measureable
deterioration.

The starting circuit must provide a minimum starting pulse repetition rate of
one pulse per cycle (symmetrical). The spike position must occur within a
minimum of +20 degrees of the center of the open-circuit voltage wave-form.
The pulse peak voltage should be a maximum of 3000 volts. Pulses must
be provided in the same polarity as the open circuit voltage.


Each luminaire shall be prewired with two (2) metal oxide varistors to limit surge
voltages on equipment by diverting surge currents to ground. Each metal oxide device
shall be installed between incoming leads and fixture ground. The varistors shall
comply with the ANSI-IEEE standard C62.11-1987 and shall be capable of operation
in an outdoor environment with a temperature range of -40 degrees C to 40 degrees
C. The metal oxide shall have the following electrical ratings and characteristics:

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MIS-28



1.
Rating of 650 volts rms with MCOV of 540 volts rms.
2.
An 8/20 micro seconds current wave of 5 KA shall have a maximum discharge
voltage of 2.7 KV crest. 3.
Duty cycle of 1.5 KA crest. High current short duration (HCSD) of 10 KA
crest.

The starting circuit must provide a minimum starting pulse repetition rate of one pulse
per half-cycle (symmetrical). The spike position must occur within a maximum of + or
- 20 degrees of the center of the open-circuit voltage waveform. The pulse peak
voltage should be a maximum of 3000 volts. Pulses must be provided in the same
polarity as the open circuit voltage.

Each luminaire shall consist of an aluminum alloy housing forming the upper half of
the assembly, a separate interior efficient reflector, and a heat resisting glass
refractor mounted in a hinged holding ring. The lamp socket shall be adjustable to
provide a variety of light patterns including I.E.S. II, III, IV and shall be factory set for
Type II. The assembly shall be drip proof and bug proof. The entire unit shall be
prewired and ready for installation. The nominal lamp voltage shall be 55 volts. The
luminaire shall be an approved equal in appearance, quality and design to Thomas &
Betts #U-1150068 or Cooper #OVZ1OSP8EU0285.

b.
Lamps - The High Pressure Sodium lamps to be furnished with the luminaire shall be
100 watt, with a rated life of 24,000 hours equal in quality, design and performance to
North American Phillips or Sylvania LU100.

III.
Installation

The luminaire shall be installed on the bracket as shown on the drawings and indicated in the
field by the engineer. Orientation and leveling of the units shall be so as to provide for uniform
appearance, maximum lighting efficiency and ease of maintenance.








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IV.
Information Required

Bidders shall also furnish complete performance data on the luminaires equipped with the
lamp they propose to furnish. The data submitted shall contain at least the following
information:

THE FOLLOWING INFORMATION SHALL BE SUBMITTED TO THE DIVISION OF
ELECTRICITY UPON REQUEST

Isocandle Curves from Photometric Test
Utilization Curves
Isolux Lines of Horizontal Foot-candles from a single unit Total Wattage of Fixture

V.
Quotation

The complete 100 Watt High Pressure Sodium Luminaire with lamp shall be quoted as a unit
price in the appropriate section of this document.




























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