RFQ Amendment 36C25921Q0699 0004.docx

5. PROJECT NUMBER (if applicable)

CODE

7.

ADMINISTERED BY

2. AMENDMENT/MODIFICATION NUMBER

CODE

6. ISSUED BY

8. NAME AND ADDRESS OF CONTRACTOR

4. REQUISITION/PURCHASE REQ. NUMBER

3. EFFECTIVE DATE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED

PAGE OF

PAGES

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED

BPA NO.

1. CONTRACT ID CODE

FACILITY CODE

CODE

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

E. IMPORTANT:

is extended,

(a) By completing Items 8 and 15, and returning __________ copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE

OF YOUR

ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY is not extended.

12. ACCOUNTING AND APPROPRIATION DATA

(REV. 11/2016)

is required to sign this document and return ___________ copies to the issuing office.

is not, A. THIS CHANGE ORDER IS ISSUED PURSUANT TO:

Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

15C. DATE SIGNED

B. THE ABOVE NUMBERE

D CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES

SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

RESULT IN REJECTION OF YOUR

OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendmen t, and is received prior to the opening hour and date specified.

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER

Contractor

16C. DATE SIGNED

14. DESCRIPTION OF AMENDMENT/MODIFICATION

16B. UNITED

STATES OF AMERICA

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER

16A. NAME AND TITLE OF

CONTRACTING OFFICER

15B. CONTRACTOR/OFFEROR

STANDARD FORM 30

PREVIOUS EDITION NOT USABLE

Prescribed by GSA - FAR (48 CFR) 53.243 (Type or print) (Type or print) (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

(Number, street, county, State and ZIP Code) (If other than Item 6) (Specify type of modification and authority) (such as changes in paying office, appropriation date, etc.)

(If required)

(SEE ITEM 11)

(SEE ITEM 13)

(X)

CHECK

ONE

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS,

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF

SOLICITATIONS

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

(Signature of person authorized to sign) (Signature of Contracting Officer) 575-22-1-6040-0001

36C259-21-AP-3251

36C259 Department of Veterans Affairs Network Contracting Office

NCO 19

6162 South Willow Drive, Suite 300 Greenwood Village CO 80111 36C259 Department of Veterans Affairs Network Contracting Office

NCO 19

6162 South Willow Drive, Suite 300 Greenwood Village CO 80111 To all Offerors/Bidders

36C25921Q0699 09-13-2021

X X X Remains: 9/20/2021 at 4:00pm MDT X The purpose of this amendment is to update the following Sections of the solicitation based on vendor questions:

1) Update to B.2 Statement of Work (Changes are yellow highlighted in red text)

2) Update to Section D - Exhibits and Attachments (Changes are yellow highlighted in red text)

3) Update t o Section E.1 and E.6 (Changes are yellow highlighted in red text)

The solicitation close date remains 9/20/2021 at 4:00pm MDT.

All other terms and conditions remain the same.

CONTINUATION PAGE

Please review the following changes to the B.2 SOW, Section D Attachments, Section E.1 Solicitation Close Date, and E.1 & E.6 General Standards and Special Standards of Responsibility changes highlighted in Yellow and Red Text below:

B.2 Statement of Work (SOW) VA Western Colorado Health Care System Electrical Testing, Inspection, Preventive Maintenance (PM), and Certification

1. Background The VA Western Colorado Health Care System has a requirement for testing, inspection, PM adjustment and certification of electrical equipment, grounding systems, electrical coordination study, and arc flash study. The study will encompass the medical campus located at 2121 North Avenue, Grand Junction, CO 81501. The campus consists of 16 buildings, approximately 310,000 square feet. The voltages on site include 13.2 KV, 277/480 V, and 120/208 V.

2. Project Objective Complete an electrical coordination and arc flash study and test the electrical systems for the Grand Junction campus. The study will include new construction performed after the previous study as well as assessing electrical panels and equipment that were part of the previous study.

3. General

3.1. The Contractor shall perform an electrical coordination and arc-flash study in strict compliance with NFPA 70E - Standard for Electrical Safety in the Workplace, 2021 edition, and table 242-2001 - Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems. Survey work will be accomplished on energized equipment unless an outage is required due to specific equipment safety conditions. Any outages, even momentary, shall be after normal working hours or on weekends/holidays. All requests for outages must be submitted in writing to the Contracting Officer’s Representative (COR) and approved by the Chief Engineer at least 2 weeks prior to scheduled outage. Requesting a power outage does not guarantee that the requested time will be approved, facility operations continue after normal business hours and take precedent over construction. Contractor shall provide adequate staffing to keep scheduled outages to two (2) hours per ATS. During the 2-hour shutdown, contractor shall complete all inspections that require a power outage on that system. Appropriate personal protective equipment (PPE) shall be used where it is necessary to remove covers or open equipment thereby exposing live buses or other energized components.

3.2. After award and prior to the start of work the contractor shall conduct an entrance briefing with the Chief Engineer and Engineering staff upon arrival at the Grand Junction campus. The contractor shall use this meeting to introduce their team and discuss the procedures for obtaining the necessary drawings and field information. At the completion of the site survey, the contractor shall again conduct a short briefing with the Chief Engineer and staff to discuss any major problems or life-threatening issues if any are discovered during the survey.

3.3. This electrical system study shall include testing of ground resistance for the entire facility in accordance with VHA Directive 1028 - Electrical Power Distribution Systems, dated February 24, 2020.

3.4. The Contracting Officer’s Representative (COR) shall monitor the technical aspects of the contract and report any deficiencies or abnormalities to the Contracting Officer. In no event shall the COR change any of the terms and conditions of the contract. Any changes or modifications to the contract shall be made only by the Contracting Officer and/or Contract Administrator, pursuant to a properly executed contract action.

4. Qualifications Contractor’s proposal shall include documentation demonstrating that they comply with the following requirements:

4.1. The short-circuit, protective device coordination, and arc-flash hazard analysis studies shall be conducted under the supervision and approval of a Registered Professional Electrical Engineer skilled in performing and interpreting the power system studies.

4.2. The Registered/Licensed Professional Electrical Engineer shall be a full-time employee of the equipment manufacturer or an approved engineering firm.

4.3. The Registered Professional Electrical Engineer shall have a minimum of three (3) years of experience in performing power system studies.

4.4. The equipment manufacturer or approved engineering firm shall demonstrate experience with arc flash hazard analysis by submitting names of at least three (3) actual arc flash hazard analyses it has performed in the past 3 years.

4.5. All work regulated by the NEC (NFPA 70) shall be performed by a Colorado licensed Electrician or a journeyman electrician from any of the following states that have a reciprocal licensing agreement with Colorado:

· Alaska

· Arkansas

· Idaho

· Iowa

· Minnesota

· Montana

· Nebraska

· New Hampshire

· New Mexico

· North Dakota

· Oklahoma

· South Dakota

· Utah

· Wyoming All electrical work on energized systems shall be performed by, or in the presence of, a licensed electrician in Colorado or states listed above. All personnel shall have current training and certifications for the tasks which they are assigned.

4.6. Contractor shall be certified by the International Electrical Testing Association (NETA) or equivalent certifying organization as Certified Technicians

4.7. Contractor employees shall have completed the Occupational Safety & Health Administration (OSHA) approved 10-hour construction safety training.

4.8. Contractors shall have technical training and demonstrable track records of working experience in maintenance, inspection, and testing of the Electrical Power Distribution Systems and related components in healthcare, industrial, educational, and commercial facilities for a minimum of three (3) continuous years. Electrical components on which the Contractors have experience shall include, but not be limited to, switchboards & switchgear (low and medium voltage); low voltage controls; emergency and standby generators; automatic transfer switches, wiring, transformers, meters, and other electrical appurtenances.

4.9. Contractors shall have safety trainings – either on-the-job or class-room type - in electrical safety outlined in the OSHA Standard 29 Code of Federal Regulations (CFR) 1910 Subpart S – Electrical, and the NFPA 70E – Standard for Electrical Safety in the Workplace. Training certification shall be provided indicating each technician is a Qualified Person as defined by NFPA 70E. Training certifications shall be submitted to the VA Contracting Officer prior to work. If no training certifications are available, the contractor’ Employer shall certify that he/she has met this requirement in writing and submit it to the VA Contracting Officer prior to work.

5. Integrated Baseline Review (IBR) Upon completion of the study and prior to the end of performance period, the Contractor will conduct an Integrated Baseline Review (IBR) meeting with the Grand Junction Engineering staff. The IBR is intended to allow the lead Engineer of the Contractor’s team the opportunity to provide the Owners (i.e., Chief Engineer, Grand Junction facility personnel) a mutual understanding of the risks inherent with deficiencies found and the potential consequences if such deficiencies are not corrected. In short, the Contractor Engineer should review the findings of the study with the Grand Junction staff and explain inherent risks and respond to any questions regarding the study. Properly conducted, this IBR should foster the development of a Risk Management Plan and garner support for correction of critical deficiencies. At the conclusion of the IBR the Contractor Engineer shall obtain signatures from the Grand Junction COR or Chief Engineer indicating they have received the study and have been apprised by the Contractor of the associated risks.

6. Deliverables

6.1. Review copies shall be submitted to the Owner at 50%. This is to check progress and have a draft document to begin programming for future projects based on this study.

6.2. Arc Flash Study

The electrical system study shall be conducted using SKM Power Tools software or equivalent. A copy of the software model and data files used to develop the study shall be turned over to the WCHCS for the facility’s use and modification for future facility work (e.g. creation of updated arc flash hazard warning labels)

6.3. Short Circuit Coordination Analysis

Presenting the results of the short-circuit study in a table. Include the following:

Device identification.

Operating voltage.

Overcurrent protective device type and rating.

Calculated short-circuit current.

6.4 Equipment PM

Prepare a Comprehensive Facility Condition Assessment Report (FCA), including all information gathered in the execution of items 7.1-7.10. Contractor shall incorporate a final cost estimates to correct the deficiencies identified in the FCA in an Excel spreadsheet format. This shall include a Results and Recommendations section that will be the basis of future projects.

6.5. Final Report

Provide Three (3) physical copies of the final report and electronic copies of all inspections, studies and reports.

7. Scope of Work The Contractor shall prepare a complete Short Circuit and Coordination Study including voltage drop calculations on the entire electrical system/s (both normal and emergency). It shall begin at the incoming utility electrical service (for the normal system) and at the emergency generators (for the emergency system) and continue through to each branch circuit panelboard, motor control center or motor control panel in each building. The study shall include a system one-line diagram; Short Circuit and ground fault analysis, protective coordination plots, voltage drop calculations and the testing and tasks outlined in Para 7.1—7.10.

7.1. One- line drawings: The one-line diagrams shall show the schematic wiring of the electrical distribution system for each building. Include all electrical equipment and wiring protected by the over current devices, also show on the one-line diagrams the following specific information:

Calculated Short Circuit values at each bus.

Breaker and fuse ratings.

Transformer kVA, voltage ratings and wiring connections.

Voltage at each bus.

Identification of each bus.

Conduit material, feeder sizes and lengths.

Generator kW and voltage ratings.

7.2. Voltage Drop Calculations:

7.2.1. Provide voltage drop calculations for all three-phase branch and feeder circuits. Show calculated voltages at each bus and voltage drops on each feeder.

7.2.2. Calculations shall be based on the maximum values of kVA, kW, kVar, power factor and amperes for each power circuit.

For branch circuit level, use 80% of nameplate rating.

For incoming service and distribution level, use 50% of the nameplate rating or actual maximum peak demand load collected in the field if it is available.

7.2.3. Provide tabular information showing the sizes of all cables, transformers and other circuit data.

7.2.4. Provide a system one-line diagram which clearly identifies individual equipment busses, bus numbers, cable and bus connections and other circuit information.

7.2.5. Provide a separate section or table which provide an evaluation of the calculated voltage drops with recommendations for improvements where voltage drops exceed the allowable NEC limits.

7.3. Equipment and components:

7.3.1. 13.2 KV PMH PAD MOUNTED GEAR

Provide testing and maintenance for one (1) 13.2 KV S&C PMH switch per manufacturers guidelines.

Conduct an infrared scan of the wiring compartment.

Inspect for and report damage, missing equipment, missing labels, security to foundation, operation of doors, loose connections, malfunctioning equipment, moisture, or contamination.

Affix inspection, rotation, new VA provided equipment label, and arc fault labels.

7.3.2. 13.2 KV SWITCHGEAR

Equipment to be inspected consists of one (1) Metal-clad Switchgear.

For All five (5) medium voltage breakers:

Draw or rack each breaker from its cell. Remove arc chutes, clean, inspect, and adjust all contacts, as necessary. Measure and record contact resistance in micro-ohms and clean all insulating surfaces.

Megger phase-to-phase, and phase-to-ground and measure contact resistance in micro-ohms.

Clean and inspect each breaker. Clean and dress all contact surfaces and lubricate, as necessary.

Electrically close and trip each breaker with control switch. Manually close and trip each breaker with each of its protective devices. Test trip function using primary injection method. Record testing results and include in the comprehensive report.

Check that Tripping devices and trip latches move freely, and that the armature of each over current trip device has sufficient freedom of travel to assure release of the breaker latch. Check the calibration and reset if necessary, to avoid nuisance tripping.

1. Inspect for and report damage, missing equipment, missing labels, security to foundation, operation of doors, loose connections, malfunctioning equipment, moisture, or contamination, visually inspect ground terminations.

1. Conduct an infrared scan of all wiring compartments.

1. Verify all switch handles are functional.

1. Load current - Measure and report any that exceeds the ampere rating of the breaker. Record all readings and include in the comprehensive report.

1. Inspect the insulation system on the primary bus and assemblies. Test insulation on each bus, phase-to-phase, and phase-to-ground with suitable mega-ohm meter. Record values, report deficiencies. Inspect each bus and connection bars for overheating and loose connections. Check if bus is operating at a higher load than its rating.

1. Torque all connections to manufacturer’s specifications.

1. De-energize entire substation, clean all insulating surfaces, and clean and dress all contacts. Measure contact resistance in micro-ohms, Megger each phase-to-ground. Record all readings. Clean and inspect cubicle, torque all untapped connections to manufacturer’s specifications, and lubricate, as necessary.

1. Check nuts and bolts for tightness. Check pins or cotter pins, determine they are in place, and that all cotter pins have sufficient spread. Reset or replace defective pins or cotter pins. Check mechanism rods and moving parts for binding. Operate the disconnect switch several times for a functional test of all parts. Lightly lubricate bearing points.

1. Inspect the elevating and lowering mechanisms of metal-clad switchgear and dropout devices; perform an operational check and lubricate.

1. Inspect changing mechanisms, shutters, and interlock to assure that they close when the breaker is removed. All interlocks shall be inspected.

1. Examine contacts - check the amount of wipe in closing and opening. Contacts should be clean and bright. Clean and dress contacts as required. Check condition of arcing contacts for pitting and check condition of conductors. Damaged, burned or pitted laminated contacts shall be reported.

1. Perform a functional check of the control switches and the closing relays.

1. Meters, Relays, and Instruments shall be examined and checked for calibration. Report instruments out of calibration or that have broken glass or damaged cases. Clean, inspect, test, and calibrate over current relays. Remove each relay from its case. Clean, inspect, and tighten all connections. Apply three multiples of relay tap current to each relay to verify manufacturer’s time current characteristics. Test each relay for instantaneous pickup. Affix dated and initialed calibration seals to all meters and instruments.

1. Control and Instrument Transfer Switches - Check operation of control and instrument transfer switches; inspect all switch contacts. Equipment controlled by the switch that is infrequently operated shall be inspected, including an operational check of the controlled device.

1. Inspect test blocks for loose contacts and cracked bases or covers.

1. Inspect instrument transformers primary and secondary connections, grounding (of both frame and secondary) and potential transformer fuses. Tighten all loose connections

1. Test operation of differential relay.

1. Burned out lamps shall be replaced. VA will provide contractor with replacement bulbs or LED indicators.

1. Correct minor deficiencies and clean where appropriate.

1. Affix inspection label, rotation, and arc fault labels.

7.3.3. OTHER 13.2 KV DISTRIBUTION EQUIPMENT

1. Equipment to be inspected consists of two (2) Sectionalizers and eight (8) Terminal Cabinets.

1. Perform insulation resistance test (using test voltage between 10 KV and 13.8 KV) on all 13.2 KV bus bars. Record results.

1. Check and record ground resistance.

1. Conduct an infrared scan of the wiring compartment.

1. Inspect for and report damage, missing equipment, missing labels, security to foundation, operation of doors, loose connections, malfunctioning equipment, moisture, or contamination.

1. Stencil cabinet designation on each cabinet, Identify feeds and destination for the sectionalizer cabinets, stencil designations on each door.

1. Affix inspection, rotation, and arc fault labels.

1. Stencil the equipment designation and medium voltage loop number on the exterior of the equipment. For Sectionalizers, also label the feed destination for each of the 3 fused sections.

7.3.4. 13.2 KV CONDUCTOR CABLING

1. Equipment to be inspected consists of forty-five (45) 13.2 KV cables.

1. Inspect for and report damage, missing equipment, missing labels, loose connections, malfunctioning equipment, moisture, or contamination and visually inspect ground terminations.

1. Label both ends of all 13.2 KV cabling with colored tape and a wire label indicating the location of the remote end. Tape colors shall be: A=red, B=white, C=blue. All cables shall be positively identified before labeling. After labeling, land all cables on the proper terminal (A=red, B=white, C=blue) at both ends. If this results in a change in rotation change terminations at the transformer secondary terminals.

7.3.5. OIL-FILLED TRANSFORMERS (NON-PCB)

1. Equipment to be inspected consists of thirteen (13) 13.2 KV primary oil filled transformers. All transformers are less than ten (10) years old and do NOT contain polychlorinated biphenyl (PCB).

1. Measure and record secondary voltage.

1. Measure and record load current.

1. Check and record phase rotation at secondary lugs.

1. Check and record temperature readings and fluid levels. Verify that readings are within safe limits. Reset temperature gauges.

1. Check and record ground resistance.

1. Conduct an infrared scan of the primary and secondary compartments.

1. Test for positive nitrogen blanket, make corrections if required.

1. Inspect for and report leaks, oil pools, oil stains, damage, missing equipment, missing labels, security to foundation, operation of doors, loose connections, malfunctioning equipment, moisture, or contamination and visually inspect ground terminations.

1. Sample all insulating liquid and report results numerically and with narrative interpretation. Testing shall include dissolved gas—in—oil analysis for volume (U of hydrogen, methane, ethane, ethylene, acetylene, carbon monoxide, carbon dioxide, nitrogen, oxygen, total gas, total combustible gas, and equivalent TCG reading (U; also, moisture in oil (ASTN 0—15338), interfacial tension (ASTM 0-971), acid number (ASTM 0—974), color number (ASTM 0—1500), dielectric breakdown voltage (ASTM 0—877), and specific gravity (ASTM D-l298

1. Correct minor deficiencies and clean where appropriate.

1. Torque lugs if indicated by IR scan.

1. Affix inspection, rotation, and arc fault labels.

1. Stencil the equipment designation and medium voltage loop number on the exterior of the equipment.

7.3.6. GENERATORS-EMERGENCY POWER SYSTEM ANALYSIS

1. Equipment to be inspected consists of four (4) diesel powered standby generators.

1. Provide a narrative describing the existing emergency power systems. Include a description of each emergency generator, physical location, size (kW and ampacity), voltage, phasing, age, and overall condition.

1. Provide a summary of the average loading on each generator based on data provided by the WCHCS or by measurements taken while under load.

1. Contractor shall develop load projections based on discussions with engineering staff on projected growth and future projects.

1. Contractor shall provide a qualitative narrative on the suitability of the existing generators to meet current and future demands, recommendations shall be provided in the final study.

7.3.7. GENERATOR DOCKING STATIONS

1. Equipment to be inspected consists of five (5) generator docking stations.

1. Check and record phase rotation at main lugs.

1. Conduct an infrared scan of the wiring compartment.

1. Inspect for and report damage, missing equipment, missing labels, security to foundation, operation of doors, loose connections, malfunctioning equipment, moisture, or contamination and visually inspect ground terminations.

1. Correct minor deficiencies and clean where appropriate.

1. Torque lugs if indicated by IR scan.

1. Affix inspection, rotation, new VA provided equipment label, and arc fault labels.

7.3.8. AUTOMATIC TRANSFER SWITCHES

1. Equipment to be inspected consists of seventeen (17) automatic transfer switches. Check and record phase rotation at main lugs.

1. Check and record phase rotation at main lugs.

1. Conduct an infrared scan of wiring compartment while under utility power and again under generator power.

1. Conduct an infrared scan of the wiring compartment while on normal power and while on generator power.

1. Inspect for and report damage, missing equipment, missing labels, security to foundation, operation of doors, loose connections, malfunctioning equipment, moisture, or contamination and visually inspect ground terminations.

1. Correct minor deficiencies and clean where appropriate.

1. Torque lugs if indicated by IR scan.

1. Affix inspection, rotation, and arc fault labels.

1. Remove previous equipment label and apply new VA provided label.

7.3.9. SOLAR INVERTERS

1. Equipment to be inspected consists of fifty-one (51) solar inverters.

1. Conduct an infrared scan of AC & DC wiring compartments.

1. Inspect for and report damage, missing equipment, missing labels, security to foundation, operation of doors, loose connections, malfunctioning equipment, moisture, or contamination and visually inspect ground terminations.

1. Correct minor deficiencies and clean where appropriate.

1. Torque lugs if indicated by IR scan.

1. Affix inspection, rotation, new VA provided equipment label, and arc fault labels.

7.3.10. 208V & 480V SWITCHBOARDS

1. Equipment to be inspected consists of seven (7) switchboards. (EDP-1, EDP-2, 9-ECP-2, 1-MDP, 2-MDP, 2-MDP Main, MSA)

1. Conduct an infrared scan of wiring compartment.

1. Check and record phase rotation at primary lugs.

1. Inspect for and report damage, missing equipment, missing labels, security to foundation, operation of doors, loose connections, malfunctioning equipment, moisture, or contamination and visually inspect ground terminations.

1. Verify all switch handles are functional.

1. Test sixty-eight (68) breakers in switchboards (EDP-1, EDP-2, 9-ECP-2, 1-MDP, 2-MDP, 2-MDP Main, MSA) using breaker manufacturer’s approved secondary injection method. Manually close and trip each breaker with each of its protective devices. After testing, torque all connections to manufacture’s specifications.

1. Meters, Relays, and Instruments shall be examined and checked for calibration. Report instruments out of calibration or that have broken glass or damaged cases.

1. Indicating Lamps - Burned out lamps shall be replaced. VA will provide contractor with replacement bulbs or LED indicators.

1. Where present, verify ground fault trip mechanisms operate.

1. Verify molded case circuit breakers voltage and arc fault ratings are proper as installed

1. Correct minor deficiencies and clean where appropriate.

1. Test ground resistance of service entrance equipment grounds and verify correct bonding.

1. Affix inspection, rotation, and arc fault labels.

1. Remove previous equipment label and apply new VA provided label.

7.3.11. PANELBOARDS

1. Equipment to be inspected consists of one hundred ninety-nine (199) panelboards.

1. Conduct an infrared scan of wiring compartment.

1. Check and record phase rotation at primary lugs.

1. Test ground resistance and verify proper grounding.

1. Inspect for and report damage, missing equipment, missing labels, security to foundation, operation of doors, loose connections, malfunctioning equipment, moisture, or contamination and visually inspect ground terminations.

1. Verify all breakers are functional, by turning off then back on two times, verify breakers reset, and power is restored. After testing, torque all connections to manufactures specifications.

1. Where present, verify ground fault trip mechanisms operate.

1. Verify molded case circuit breakers voltage and arc fault ratings are proper as installed

1. Correct minor deficiencies and clean where appropriate.

1. Torque lugs if indicated by IR scan.

1. Affix inspection, rotation, and arc fault labels.

1. Remove previous equipment label and apply new VA provided label.

7.3.12. MOTOR CONTROL CENTERS

1. No work required for the one (1) motor control center on station.

7.3.13. DRY-TYPE TRANSFORMERS

1. Equipment to be inspected consists of twenty- eight (28) dry type transformers.

1. Measure and record primary and secondary voltage.

1. Measure and record load current.

1. Check and record phase rotation at primary lugs.

1. Check and record ground resistance.

1. Conduct an infrared scan of wiring compartment.

1. Inspect for and report damage, missing equipment, missing labels, security to foundation, operation of doors, loose connections, malfunctioning equipment, moisture, or contamination and visually inspect ground terminations.

1. Correct minor deficiencies and clean where appropriate.

1. Torque lugs if indicated by IR scan.

1. Affix inspection, rotation, new VA provided equipment label, and arc fault labels.

1. Remove previous equipment label and apply new VA provided label.

7.3.14. BREAKER ENCLOSURES AND DISCONNECTS (FUSED AND UNFUSED)

1. Equipment to be inspected consists of ten (10) breaker enclosures and thirteen (13) disconnects (fused and unfused).

1. Disconnects of 150 amps and smaller no testing or inspection is required (Facility maintenance will affix all labeling.)

1. Conduct an infrared scan of wiring compartment.

1. Inspect for and report damage, missing equipment, missing labels, security to foundation, operation of doors, loose connections, malfunctioning equipment, moisture, or contamination and visually inspect ground terminations.

1. Correct minor deficiencies and clean where appropriate.

1. Torque lugs if indicated by IR scan.

1. Affix inspection, rotation, and arc fault labels.

1. Remove previous equipment label and apply new VA provided label.

7.3.15. CAPACITORS

1. Equipment to be inspected consists of one (1) capacitor.

1. Conduct an infrared scan of wiring compartment.

1. Measure and record resistance to ground for each phase terminal.

1. Record and measure capacitance for each phase terminal.

1. Inspect for and report damage, missing equipment, missing labels, security to foundation, operation of doors, loose connections, malfunctioning equipment, moisture, or contamination and visually inspect ground terminations.

1. Correct minor deficiencies and clean where appropriate.

1. Torque lugs if indicated by IR scan.

1. Affix inspection, rotation, new VA provided equipment label, and arc fault labels.

7.3.16. MAIN POWER JUNCTION BOX

1. Equipment to be inspected consists of one (1) junction box.

1. Conduct an infrared scan of wiring compartment.

1. Inspect for and report damage, security to foundation, loose connections, malfunctioning equipment, moisture, or contamination and visually inspect ground terminations.

1. Correct minor deficiencies and clean where appropriate.

1. Torque lugs if indicated by IR scan.

1. Affix inspection and arc fault labels.

7.4. Ground Resistance Analysis.

7.4.1. A concise qualitative description (not to exceed one (1) page of narrative) describing the overall condition of the facility ground resistance shall be provided. Any violations of NEC or other abnormalities (high ground resistance, damaged conductors or electrodes, harmonics, etc.) warranting further detailed study shall be highlighted. Analysis of the facility ground resistance shall be based upon:

1. Visual inspection of visible ground system components (made during site investigation). Include photographs in Appendices.

1. Testing and documenting of the grounding systems as installed.

1. Other data on ground system made available by FMS.

7.5. Short Circuit Study.

7.5.1. Systematically calculate the fault impedance to determine the available short circuit and ground fault currents at each bus. Incorporate the motor contribution in determining the momentary and interrupting ratings of the protective devices. Motors less than 25-hp may be grouped together.

7.5.2. Use actual conductor impedances if known. If unknown, use typical conductor impedances based on IEEE Standard 141-1993 - IEEE Recommended Practice for Electrical Power Distribution for Industrial Plants.

7.5.3. Transformer design impedances shall be used when test impedances are not available.

7.5.4. Provide the following:

1. Calculation methods and assumptions.

1. Selected base per unit quantities.

1. One-line diagram of the system being evaluated.

1. Source impedance data, including electric utility system and motor fault contribution characteristics.

1. Tabulations of calculated quantities.

1. Results, conclusions, and recommendations.

7.5.5. Calculate short-circuit momentary and interrupting duties for a three-phase bolted fault at each:

1. Electric utility’s supply termination point.

1. Incoming switchgear.

1. Unit substation primary and secondary terminals.

1. Low voltage switchgear.

1. Automatic transfer switches.

1. Branch circuit panelboards.

1. Other significant locations throughout the system.

7.5.6. For grounded systems, provide a bolted line-to-ground fault current study for areas as defined for the three-phase bolted fault short-circuit study.

7.5.7. Protective Device Evaluation:

1. Evaluate equipment and protective devices and compare to short circuit ratings.

1. Adequacy of switchgear, motor control centers, and panelboard bus bars to withstand short-circuit stresses.

1. Notify Owner in writing, of existing, circuit protective devices improperly rated for the calculated available fault current.

7.6. Arc-Flash Hazard Analysis.

7.6.1. The arc-flash hazard analysis shall be performed according to IEE Standard 1584-2018 - IEEE Guide for Performing Arc-Flash Hazard Calculations, equations that are presented in NFPA70E-2012, Annex D.

7.6.2. The flash protection boundary and the incident energy shall be calculated at all equipment locations identified in the previous study (2014) as well as equipment placed into service since the previous study.

7.6.3. The arc flash hazard analysis shall include all significant locations in 480-volt and 208-volt systems regardless of transformer size.

7.6.4. Safe working distances shall be based upon the calculated arc flash boundary considering an incident energy of 1.2 Cal/cm2.

7.6.5. When appropriate, the short circuit calculations and the clearing times of the phase overcurrent devices will be retrieved from the short circuit and coordination study model. Ground overcurrent relays should not be taken into consideration when determining the clearing time when performing incident energy calculations.

7.6.6. The short circuit calculations and the corresponding incident energy calculations for multiple system scenarios must be compared and the greatest incident energy must be uniquely reported for each equipment location. Calculations must be performed to represent the maximum and minimum contributions of fault current magnitude for all normal and emergency operating conditions. The minimum calculation will assume that the utility contribution is at a minimum and will assume a minimum motor contribution (all motors off). Conversely, the maximum calculation will assume a maximum contribution from the utility and will assume the maximum number of motors to bet operating. Calculations shall take into consideration the parallel operation of synchronous generators with the electric utility, where applicable

7.6.7. The incident energy calculations must consider the accumulation of energy over time when performing arc-flash calculations on buses with multiple sources. Iterative calculations must consider the changing current contributions, as the sources are interrupted or decremented with time. Fault contribution from motors and generators should be decremented as follows:

· Fault contribution from induction motors should not be considered beyond 3 to 5 cycles.

· Fault contribution from synchronous motors and generators should be decayed to match the actual decrement of each as closely as possible (e.g., contributions from permanent magnet generators will typically decay from 10 per unit to 3 per unit after 10 cycles.

7.6.8. For each equipment location with a separately enclosed main device (where there is adequate separation between the line side terminals of the main protective device and the work location), calculations for incident energy and flash protection boundary shall include both the line and load side of the main breaker.

7.6.9. When performing incident energy calculations on the line side of a main breaker (as required above), the line side and load side contributions must be included in the fault calculation.

7.6.10. Miscoordination should be checked amongst all devices within the branch containing the immediate protective device upstream of the calculation location and the calculation should utilize the fastest device to compute the incident energy for the corresponding location.

7.6.11. Arc-flash calculations shall be based on actual overcurrent protective device clearing time. Maximum clearing time will be capped at 2 seconds based on IEEE Standard 1584-2018 section B.1.2. Where it is not physically possible to move outside of the flash protection boundary in less than 2 seconds during an arc-flash event, a maximum clearing time based on the specific location shall be utilized.

7.7. Arc Flash Labeling.

7.7.1. The Contractor shall produce and deliver to the Grand Junction campus up to five hundred (500) arc flash warning labels in accordance with NFPA 70 (NEC) and NFPA 70E. Interior labels shall be 4-inches by 6-inches (nominal) printed on industrial quality, adhesive backed vinyl. Exterior labels shall be 4 inches by 6 inches (nominal) engraved plastic sheet. “Danger” labels shall have pre-printed headers in red; “Warning” labels shall have pre-printed headers in orange. Electrical equipment shall be labeled IAW NFPA 70, Article 110.16 and NFPA70E, Article 130.5 (C). The arc-flash hazard analysis to determine the arc-flash protection boundary for each label shall be calculated IAW NFPA 70E Paragraph 130.5 (A). For each device for which a hazardous analysis is conducted, the equipment shall be field marked with a label containing the available incident energy or required level of PPE.

7.7.2. In addition to the requirements of NFPA 70 and 70E, each customized label containing specific available incident energy or required level of PPE and shall identify the corresponding piece of electrical equipment, by panelboard or device identifier and building number. The identification shall be in a manner understood by Grand Junction facility personnel who will be applying the labels to the respective devices. Generic labels do not require equipment and building identifiers.

7.7.3. Arc-flash labels shall be provided in the following manner and all labels shall be based on recommended overcurrent device settings:

1. For each applicable 480-volt, and 208-volt panelboard, one arc-flash label shall be provided.

1. For each low-voltage switchboard, one arc-flash label shall be provided.

1. For each switchgear, one arc-flash label shall be provided.

1. For medium voltage switches one arc-flash label shall be provided.

1. For each machine control panel, one arc-flash label shall be provided.

1. For each transformer, one primary and one secondary arc-flash label shall be provided.

1. For each disconnect, one arc-flash label shall be provided.

7.8. Protective Device Coordination Study

7.8.1. Prepare the coordination curves to determine the required settings of protective devices to ensure selective coordination. Graphically illustrate (using logarithmic scale) that adequate time separation exists between series devices, including the utility company upstream device. Plot the specific Time Current Characteristics (TCC) of each device in the electrical system as follows:

1. Provide TCC curve down to the last branch-circuit panelboard (regardless the protective device is an adjustable or fixed device) in the three-branches of the Essential Electrical System (EES).

1. Provide TCC curve down to the last adjustable device (stop after the first fixed device) in the Normal System but at the minimum two-level curves from each of the building Service Entrance switchgear/switchboard shall be provided.

7.8.2. The following specific information shall also be shown on the coordination curves at each level of power distribution system:

1. Device identification (including manufacturer, catalog number, and device curve number and ID).

1. Voltage and current ratio for curves.

1. Three-phase and single-phase ANSI damage points for each transformer.

1. No damage, melting, and clearing curves for fuses.

1. Cable damage curves.

1. Transformer inrush points.

1. Maximum short circuit cutoff point.

1. Excerpts from one-line diagram reflecting the protective devices modeled on each curve. This excerpt may be inserted onto a corner (typically top right-hand) of the curve print out or may be on the preceding facing page for ease of reference.

1. Provide explanation, analysis, and recommendation to achieve better coordination.

1. The analysis for recommended curve of a device (either adjustments to the existing device or a recommended replacement device) shall be put right after the existing curve in the report for comparison.

7.8.3. Develop a table to summarize the settings selected for the protective devices. Include all medium voltage devices in the table, as well as all low voltage devices which require modification, showing the following data:

1. Device identification.

1. Relay CT ratios, tap, time dial, and instantaneous pickup.

1. Circuit breaker sensor rating, long time, short time, and instantaneous settings, and time bands.

1. Fuse rating and type.

1. Ground fault pickup and time delay.

7.9. Analysis and Recommendations

7.9.1. For all electrical equipment, determine if adequate code clearances exist. Note cases by location and specific equipment that do not include adequate code clearances and provide a cost estimate to resolve the problems. Provide information in table format.

7.9.2. Determine if ground fault protection exists where required by NFPA 70 Articles 215 and 517. Note all cases where this condition exists and provide cost estimates to correct. Provide information in table format.

7.9.3. For all automatic transfer switches, determine if the correct 3-pole or 4-pole switches are used. Where ground fault protection is used on the normal feed to the switch, determine if the switch is correctly wired. Note all cases where this condition exists and provide cost estimates to correct. Provide information in table format.

7.9.4. Analyze the short-circuit calculations and highlight any equipment that is determined to be underrated. Provide recommendations to effectively protect the underrated equipment.

7.9.5. After developing the coordination curves, highlight areas lacking coordination. Present a technical evaluation with a discussion of the logical compromises for best coordination.

7.9.6. Assess the equipment condition using grading method in term of A, B, C, D and F. Equipment at the high end or low end of a grade can be supplemented with a + or – sign after the grade.

Grade A: Like New Condition; majority of useful lifespan remains. “Excellent” Grade B: Good Condition; over half of useful lifespan remains. “Good” Grade C - Average Condition; less than half of useful lifespan remains. “Fair” or “Acceptable” Grade D: Poor Condition; past assigned useful life, but failure is not critical. “Poor” or “Problematic” Grade F: Critical Condition; needs immediate attention. “Failing” or “Critical”

7.10. Protective Device Settings

7.10.1. For all adjustable and fixed protective devices, provide tables to show existing settings and new settings where changes are recommended for proper protection.

7.10.2. If adjustments will not provide adequate protection, provide recommendations to update or replace the existing underrated equipment and include cost estimates to accomplish the necessary corrections.

7.10.3. Provide table in Excel format to show ONLY the devices that require settings in need of adjustment.

8. Contractor Responsibilities

8.1. Contractor shall supply all labor and materials necessary to provide a complete project as outlined in this statement of work and subsequent contract.

8.2. It is the responsibility of the Contractor to properly assess the contract documents and existing site conditions for the execution of the work.

8.3. If there is a discrepancy between this SOW and the code requirements, the more stringent requirement shall apply.

8.4. The Contractor shall be responsible for reviewing all drawings and specifications and shall submit Requests for Information (RFIs) for any discrepancies or clarifications needed. The Contractor shall submit RFIs to the Contracting Officer (CO) for clarification prior to bidding the work.

8.5. The record documents are not totally aureate. The contractor shall include all equipment at the facility in the service. If the total number of devices is less than 5% over the counts provided in the solicitation, then that work shall be included at no additional cost. If the device count could exceed 105% of the contract count, the contractor must inform the CO and COR immediately.

8.6. The Contractor is responsible for supplying all tools and equipment necessary to perform this work.

8.7. No utility service such as water, gas, steam, sewers electricity, fire protection systems or communications systems may be interrupted without prior approval of COR. All shutdowns or outages of any utility system must be submitted to the Contracting Officer’s Representative (COR) a minimum of fourteen (14) days in advance for approval.

8.8. Hot work permits are required and must be submitted a minimum of three (3) days in advance for approval by the Facility Safety Manager. The hot work permit must be posted at the work area and all requirements must be followed.

8.9. Work which produces high levels of noise shall not be undertaken without written approval of the COR.

8.10. Contractor must request energized work permit prior to conducting hot work. Testing, troubleshooting, and voltage measurement do not require an energized work permit in accordance with NFPA70. Consult NFPA70E for further information. Energized work permits must be submitted fourteen (14) days prior the requested work date. The energized work permit must be posted at the work area and all requirements must be followed.

8.11. Contractor must be issued an infection control permit for all work that creates dust or has the potential to create dust. The COR will coordinate with the contractor to identify work that requires an infection control permit. The infection control permit must be posted at the work area and all requirements must be followed.

8.12. The Contractor shall maintain a set of contract drawings on site to record progress and as-built conditions which shall be updated no less than once a week.

8.13. Schedules are to be updated weekly and submitted to the COR. A three week lookahead of all work to be performed shall be provided at each weekly project meeting.

8.14. All work performed shall comply with VA Master Specifications. It is the responsibility of the Contractor to understand and comply with all applicable municipal, county, state, and federal codes, laws, ordinances, standards, rules, and regulations. All work shall be completed to generally accepted trade standards and accomplished in a workmanlike manner.

8.15. Electricians and supervisors on this project must show that they have taken an arc flash safety course.

8.16. All contractor employees and subcontractor employees must attend a site orientation prior to working at the facility. The orientation takes approximately thirty (30) minutes. The contractor is to schedule the orientation with the COR prior to the employee’s arrival on station.

8.17. The contractor shall be allowed to park two (2) vehicles on site during business hours. The contractor is to request parking permits for the authorized vehicles. No other contractor or employee vehicles are authorized to park on station during business hours.

8.18. Contractor must remove all wase generated from the facility. Waste containers or dumpsters managed by the government or other contractors may not be used.

8.19. The Contractor shall preserve and protect all structures, equipment, and vegetation (such as trees, shrubs, and grass) on or adjacent to the work site. The Contractor shall protect from damage all existing improvements and utilities at or near the work site and on adjacent property of a third party, the locations of which are made known to or should be known by the Contractor. The Contractor shall repair any damage to those facilities, including those that are the property of a third party, resulting from failure to comply with the requirements of this contract or failure to exercise reasonable care in performing the work.

8.17. Contractors will need to have ready access to the latest versions of the following references:

1. NFPA 70, National Electrical Code.

1. NFPA 70B, Recommended Practice for Electrical Equipment Maintenance.

1. NFPA 70E, Standard for Electrical Safety for the Workplace.

1. NFPA 110, Standard for…