Bid Package 08 North Well Field - Garney Construction

Colorado River Municipal Water District
Raw Water Supply Well Sites
Ward County North Well Field
3. Motor Starting Study
a. Contractor shall coordinate with the motor manufacturer and the Soft
Starter & VFD manufacturers for all data required to perform the motor
starting analysis. The preliminary starting analysis shall determine the
maximum inrush allowed when starting the motor to not drop out the
loads under the worst operating conditions.
4. Arc Flash Hazard Analysis
a. Provide a color copy of project specific Arc Flash labels for each
panelboard, switchboard, switchgear, disconnect, Motor Control Center,
VFDs, starters, transfer switches, including all existing electrical
equipment – switchgear, starters, motor control center, panelboards,
starters, etc.
b. Provide a copy of the one-line diagram color-coded to show the incident
ranges & clothing classifications at each bus. The one-line shall be on
11x17 paper and shall be separated out across three (3)-11x17 sheets.
1) Provide a table indicating the color coding used for each incident
range & clothing classification. The one-line shall also include
the information specified in section 2.03 below. The following
is a recommended color coding for the following Hazard/Risk
Category numbers:
a) Green to indicate a Category 0
b) Blue to indicate a Category 1
c) Brown to indicate a Category 2
d) Yellow to indicate a Category 3
e) Orange to indicate a Category 4
f) Red to indicate Above a Category 4
B. Provide six (6) bound color copies of the completed studies to be submitted to the
ENGINEER for approval. Each hard copy of studies shall be bound in a 3-ring binder.
C. After the report and one-line has been approved, provide a color copy in PDF format of
the finalized 11x17 one-line diagram to the Contractor for the Contractor’s use to frame
in the electrical room as specified in section 26 05 00, “Common Work Results for
Electrical”. The one-line shall reflect all changes made including but not limited to
changes made during construction
D. The Contractor shall redo the Power System Studies if any changes are made during the
field testing checkout and/or start-up. The Contractor shall submit the Power System
Studies for Engineer Approval. The Studies shall include an updated copy of the color
copy Arc Flash Labels.
E. A CD with all SKM input files and a PDF of all output files is required for both the
preliminary and final power system studies submittals.
1. Two Software copies of actual power systems computer program project data
files burned in on a CD. The CONTRACTOR shall provide an electronic copy
on a CD-ROM of all files used to develop the electrical system model in the
power system analysis program and all files for the written study analysis and
summary data tables. For instance if SKM software is used for the power system
studies, then the SKM files shall be burned in on a CD-ROM and provided to the
OWNER/ENGINEER. This shall include any library files used for circuit
breakers, fuses, etc. for the power system analysis.
May 18, 2012
Electrical Power System Studies
Revision 0 26 05 73.01-4