Bid Package 08 North Well Field - Garney Construction

Colorado River Municipal Water District
Vertical Turbine Submersible Pumping Units
Ward County North Well Field
E. Submit the following Manufacturer’s Certificates in accordance with Section 01300,
Submittals:
1. Certificate of Compliance with qualification requirements as specified herein,
including reference list
2. Manufacturer’s certified factory test reports
3. Manufacturer’s certified field test reports (to follow after field testing)
4. Manufacturer’s Certificate of Compliance
F. Submit Operation and Maintenance Manuals and Equipment Installation Report for
pumping units.
1.5 Quality Assurance
A. Equipment manufacturer shall submit evidence of experience and qualifications equal to
or greater than that required in “Instructions to Bidders”. Inability to demonstrate
experience and qualifications shall be grounds for rejection.
B. Factory Testing: Certified factory tests of each pumping unit will be required. The factory
test of the pumping unit shall produce at a minimum the following information:
1. Head capacity curve: Take at least eight (8) points at 100% speed using job
motor to Hydraulic Institute (HI) Standards, both rated head and rated capacities
will be considered. The Owner reserves the right to witness testing.
Manufacturer shall notify Engineer and Owner seven (7) days in advance of
testing allowing time to make travel arrangements. Cost of travel if witnessing
test(s) shall be borne by Engineer and Owner that is over and above the two (2)
to be paid for by Contractor as identified in the Bid Form. Testing results that fall
outside HI standards will be grounds for rejecting the equipment and the
manufacturer correcting at his own expense, retesting at his own expense and
reimbursing Owner/Engineer to witness the pump test a second time.
2. Shaft brake horsepower curve.
3. Wire to water efficiency (overall efficiency, including cable loss/column loss).
4. Water to water efficiency (pump efficiency)
5. Motor efficiencies. Dynamometer testing shall be performed on no less than five
(5) motors that will be permanent part of the project.
6. Test the stator insulation resistance with a megohmeter. The minimum acceptable
insulation resistance level shall be 8,000 megohms (in a submerged condition).
Megohm readings are expected to be at least one and two full orders of
magnitude higher than the list minimum. Test phase to ground and phase to
phase of all legs.
7. Test motor winding resistance by using a Kelvin bridge.
8. High potential test the motor insulation system at twice operating voltage plus
1,000 V.
9. Calculated running speed of motor during factory testing of the pumping unit to
demonstrate compliance with capacity and head, based on dynamometer testing
results.
C. The factory test shall be conducted on the actual unit(s) to be installed in the field,
including the pump and motor. A factor power cable having a premeasured loss may be
used in lieu of the actual pump cable. The factory test shall be conducted after the
January 2012
Submersible Vertical Turbine Pumping Units
Revision 0 11210 - 3