HomeMy WebLinkAboutAgenda Report - May 5, 1993 (68)OF
CITY OF LODI
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COUNCIL COMMUNICATION
AGENDA TITLE: Specifications and Advertisement for Bids for
High Pressure Sodium Luminaires
MEETING DATE: May 5, 1993
PREPARED BY: Electric Utility Director
RECOMMENDED ACTION: That the City Council approve the specifications
and authorize advertisement for bids for the
purchase of 85 250 -watt high pressure sodium
luminaires for installation in the downtown area.
BACKGROUND INFORMATION: The Electric Utility Department has issued
a work order to replace 85 mercury vapor lights
in the downtown area with the more efficient
high pressure sodium luminaires.
The area in which the conversions are scheduled to take place is bounded
by Lockeford Street, Church Street, Lodi Avenue and Sacramento Street.
The high pressure sodium luminaires will improve lighting levels in the
area while reducing power consumption by 32%.
FUNDING: Estimated Cost: $8,000
Budget Account: Street Light Maintenance
BID OPENING: May 19, 1993
Henr—J.i e, -Electric Utility Director
Prepared by Joel Harris, Purchasing Officer
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APPROVED: --T . ` •
THOMAS A PETERSON recycled paper
City Manager
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EQUIPMENT SPECIFICATIONS
LUMINAIRES
Luminaires shall be furnished, without lamps or photoelectric
control units, in compliance with these specifications.
Equipment furnished shall meet the latest revisions of the ANSI
Standards.
LUMINAIRES
A. Ballasts: Ballasts shall be of the regulated type and
shall be integral with the luminaires. Ballasts shall have
a minimum power factor of 90%; inrush current shall be less
than operating current, shall operate at plus or minus 10%
rated voltage. Voltage and wattage shall be as specified
on proposal form(s). Ballasts shall be of the type
recommended for high pressure sodium lamps.
B. Light Distribution: Luminaires shall have the following
Illuminating Engineering Society (IES) light distribution
patterns:
Medium
Type III
Semi -Cutoff
C. Reflector: Reflector shall be removable and highly
specular.
D. Refractor: Acrylic refractor shall be supplied for 100 -
watt and glass refractor shall be supplied for 250 -watt
luminaires. Refractor latch shall be vibration proof to
prevent accidental opening of the door. Gaskets shall be
used to seal the optical assembly at socket entry and
between reflector and refractor.
E. Slipfitter: Slipfitter shall accommodate luminaire arms
ranging from 1-5/8" O.D. through 2-3/8" O.D. without
rearranging of mounting parts and be adjustable plus or
minus 5 degrees from horizontal. In addition the
slipfitter shall accept mounting arms with minimum insert
length of 4". The distance between the end of the
luminaire arm when fully seated in the slipfitter and any
component of the luminaire ie. ballast, terminal block,
starter board etc. shall be a minimum of 1-1/211. The
slipfitter bracket shall be single -piece design.
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F. Housing: outer housing shall be cast aluminum, similar
in design to American Electric series 113 or General
Electric series M2RR and shall be equipped with twist -lock
type photoelectric control receptacle. The receptacle
shall be adjustable to permit reorientation of the
photoelectric control unit.
The luminaire terminal block shall be mounted on the inside
side-wall of the housing at a location readily permitting
termination of supply conductors entering the luminaire
through the luminaire arm ie. minimum bending of supply
conductors.
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