Bid Package 08 North Well Field - Garney Construction

BID ADDENDUM
FAILURE TO RETURN THIS BID ADDENDUM IN ACCORDANCE WITH INSTRUCTIONS
MAY SUBJECT YOUR BID TO REJECTION ON THE AFFECTED ITEM(S)ISERVICES.
Project Number: WRJ 1.0143
Description: Vertical Turbine Submersible Pumping Units
Ward County North Well Field
Addendum Number: 1
Date: January 19, 2012
will constitute rejection of the equipment.
ii) Delete Paragraph 1 I.E in its entirety and replace with the following:
E. The pumping units will be started across the line at 480 V, 3 phase, 60 Hz.
iii) Delete Paragraph 2.l.A in its entirety and replace with the following:
A. The pump shall be a submersible deep well turbine type multistage in series
design, complete with motor, power cable, power cable terminus to motor,
transition piece at pump discharge, column pipe, discharge elbow and al1
appurtenances in accordance with these specifications. The pump shall conform to
A WW A El 02-06 except as otherwise specified herein. Pumping unit speed shall
not exceed 1 ,800 rpm. The pump and motor shall be coupled via a positive
locking stainless steel coupling to produce maximum performance for torque and
thrust.
iv) Delete Paragraph 2.1 G.l in its entirety and replace with the following:
Execute Addendum:
The submersible motor shall be designed to deliver continuously the necessary
brake horse power (bhp) having a minimum 1 15 service factor The motor shaH
be designed to operate at maximum of 1,800 rpm, at 480 V, 3 phase, 60 Hz,
alternating current, with full voltage (across the line) starting capability with a
maximum current inrush of 500% without use of special starting equipment. The
motor shalt be a high reactance type design that will provide an inrush current that
is low enough to allow across the line starting. The entire motor shall incorporate
an insulation of Class B or better Motor shall have a NEMA code letter of E or
less (i.e., locked motor KVA per horsepower shall be 5.0 or less). Motor
enclosure classification shall meet or exceed IP68 requirements.
Bidder: Q_\OJ.)e.., -~ eo\IXM C\- 1:.1 Pa..CJ.o I L LC.-
Authorized Signature:
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Name and Title (Printed): J4JYO [)... ~\COV\ {