HomeMy WebLinkAboutAgenda Report - April 5, 2006 E-06AGENDA ITEM lEr 1
Aft CITY OF LODI
COUNCIL COMMUNICATION
M
AGENDA TITLE: Approve specifications and authorize advertisement for bids for 15,000feet of #110
600 -volt underground triplex (EUD)
MEETING DATE: April 5,2006
PREPARED B Y Electric Utility Director
RECORWI JKW-D ACTION: That the City Council approve the specifications and authorize
advertisement for bids for 15,000 feet of #110 underground triplex
conductorfor the Electric Utility Department.
BACKGROUND INFORMATION: This 600 -volt triplex is being sourced in preparation for projected
requirements in late 2006 and early 2007.
600 -volt underground triplex is used for new residential and commercial customers, providing the
electrical service from the Electric Utility Department's distribution transformers to the customers' meters.
Manufacturing leadtimes for low -voltage conductor is approaching 26 weeks, with demand expected to
increase during the summer. Soliciting bids now, and ordering in May, will place us in the manufacturing
queue to receive the conductor as our current inventory of cable nears depletion.
FISCAL IMPACT
FUNDING:
BID OPENING:
Initial outlay: About $22,000, to be recovered through future power sales.
Electric Utility Department 2005-2006 Financial Plan and Budget,
System Maintenance- Underground- Business Unit 161651, Page 63
Estimated Cost: $22,000 �1
April 19, 2006
Attachment: Specifications
Prepared by Joel Harris, Purchasing Officer
cc: EIJO Electrical Engineer
APPROVED: h-
Blair King, � 04'Manager
City of Lodi
Equipment Specifications
600 -VOLT XLPE TRIPLEX CABLE
1.0 GENERAL
Cable furnished under these specifications shall be limited to cross-linked polyethylene insulated
cable rated 600 volts and suitable for installation in ducts or for direct burial in earth, in wet or dry
locations, with normal conductor temperatures up to 90 degrees C. Cables furnished shall meet
the requirements of the applicable NEMA, ICEA, AEIC, and ASTM standards, latest edition
thereof, unless otherwise noted in this specification.
2.0 CONDUCTOR
The conductor shall be aluminum alloy, EC Grade, '/2 to 3/4 hard, Class B stranding.
3.0 INSULATION
Phase conductor insulation shall be single -pass, black, cross-linked polyethylene. The neutral
conductor shall have yellow XLPE insulation or black XLPE insulation with yellow extruded
stripes.
4.0 ASSEMBLY
The assembled cable shall consist of phase and neutral conductors twisted together with a lay not
less than 50 nor more than 60 times the outside diameter of one of the phase conductors. All
cable ends shall be sealed to prevent the entrance of moisture.
5.0 IDENTIFICATION
Each conductor shall have a permanent marking showing the manufacturer's name, voltage
rating, conductor size and type of insulation. Additionally, one leg of the triplex shall be marked
with sequential footage marks at least every two feet.
6.0 TESTING AND GUARANTEE
Testing of cable shall be performed according to procedures set forth by the ICEA, AEIC and
ASTM. Certified copies of Pass/Fail test results shall be supplied to the City at the time of
shipment. Any cable found defective either upon inspection, testing or installation will be returned
at the manufacturer's expense.
7.0 SPECIFIC REQUIREMENTS
Any conditional bids such as "Subject to Availability in Stock" will be rejected as non-responsive.
8.0 SHIPPING
Cable ends shall be adequately sealed with a water -seal type material and plastic end caps
secured to prevent the penetration of moisture. There shall be no water in the stranded conductor
of the cable when reel is shipped. All shipments shall be prepaid, FOB delivered to the City of
Lodi, Lodi, CA. Reels shall be shipped upright.
9.0 REELS
9.1 MAKEUP
The specified conductor shall be supplied on NEMA standard reels and in accordance with
Table 1 as shown below.
TABLE 1
CONDUCTOR SIZE
PHASE NEUTRAL
CODE WORD
MATERIAL
NEMA STANDARD
REEL CODE NO.
#2 #2 AWG
Ramapo /YES
Aluminum
3624
#1/0 #1/0 AWG
Bergen / YES
Aluminum
3624
350kcmil #4/0
Wesle an / YES
Aluminum
5432 or 7236
9.2 PACKAGING
Each reel shall have adequate protective covering across the flanges, such covering to
consist of wood members from flange to flange covering the entire circumference of the reel
(lagging). The lagging shall be nailed to the flange perimeters and shall be further secured
with at least two steel bands around the reel. Each end of the cable shall be firmly secured to
the reel.
9.3 MARKING
Each reel shall be marked with a durable label securely attached to a flange of the reel and
plainly marked stating the destination, the purchaser's order number, the shipping length of
cable on reel, type and size of conductors, insulation type and thickness, voltage rating and
manufacturer's identification number, and tare weight of the reel.