C05_Attachment_001_-_PWS.pdf

Attachment 001

PERFORMANCE WORK STATEMENT

A. INTRODUCTION.

The Bureau of Reclamation’s (Reclamation) Hoover Dam generators use static voltage regulators with rotating exciters to inject DC voltage onto main generator field windings. Hoover Dam has two Westinghouse exciters, 425 kW, armature volts 250 VDC, armature amps 1700, class F insulation, 180 RPM, weighing 12,000 lbs. that require cleaning, weighing, measuring, inspection, testing, repair, and rewind. Reclamation needs a qualified Electrical Apparatus Service Association

(EASA) Contractor to perform these services and certify work is completed in accordance with the

EASA Standard (AR100-2015).

B. BACKGROUND.

Generator excitation systems consists of main rotating exciters (armatures), static pilot exciters, voltage regulators and certain excitation control features. The armatures are designed and equipped to be direct-connected, direct current, vertical shaft, shunt-wound-type main rotating exciter mounted on top of a generator. These armatures are rated 250 volts. Reclamation will not provide any additional drawings or information. The continuous capacity of these rotating exciters (armatures) is sufficient to carry the current supplied by the generator’s static pilot exciter and regulator. The continuous capacity of the excitation system is ten percent in excess of the actual capacity (in amperes) required to supply the field excitation current of the generator when operating at 100 percent uprated kilowatt output, rated power factor, and rated voltage. These armatures are stored inside wood crates ready to load and ship to the repair facility. Pickup and delivery shall be at Hoover Dam Central Warehouse. The

Central Warehouse is located on Nevada State Route 172 about eight miles East of Boulder City, Nevada. Take Exit 2 (SR-172) past the Hacienda Hotel & Casino and follow the signs.

C. PERFORMANCE REQUIREMENTS.

1. The Contractor shall furnish the tools, equipment, materials, cranes, rigging, and incidental items necessary to safely unload, open, photograph, clean, measure, diagnostic test; repair, replace the commutator and rewind; final test, photograph, build return shipping crates, and safely reload (onto the return transport vehicle) two armatures at the Contractor’s facility.

2. The Contractor shall transport the two Armatures from Hoover Dam to the Contractor’s facility and return from the Contractor’s facility to Hoover Dam. Contractor will have a place to work at the central warehouse to load the vehicle transporting the two armatures out for repair and unloading them upon their return. Reclamation will have available a forklift and a qualified forklift operator to load and unload the Contractor’s transport vehicles.

Reclamation will also provide an escort for the Contractor’s transport vehicle’s driver while loading or unloading the two Armatures.

3. The Contractor shall provide all the necessary tools, equipment, accessories, etc., to safely secure the Armatures placed on the transport vehicle at the Central Warehouse and at the Contractor’s Facility.

3-1. Armature weigh is approximately 11,000 to 13,000 pounds each.

3-2. Armatures are installed inside crates to minimize damage during shipping.

Approximate crate dimensions are 6 feet (length) x 6 feet (width) x 5 feet (height).

4. The Contractor’s facility shall be Electrical Apparatus Service Association (EASA) certified to repair and rewind rotating exciter armatures.

5. The Contractor’s facility shall provide documentation to certify armature repair work complies with ANSI/EASA Standard (AR100-2015) per Deliverable 3.

6. The Contractor shall provide documentation to certify testing was performed following the repair as specified by EASA Standard (AR100-2015). Contractor shall submit the certified test results to the Contracting Officer’s Representative (COR) and to:

ibr3lcddworkcontrol@usbr.gov per Deliverable 5.

7. The Contracting Officer (CO) will provide the Approval or Disapproval of Deliverable within 5 days of receipt by the COR.

D. SCOPE.

1. The Contractor shall perform all work in compliance with Electrical Apparatus Service

Association (EASA) Standard AR100-2015. Contractor shall not deviate from the EASA

Standard (AR100-2015) without written permission from the CO.

1-1. AR100-2015 lists recommended practices for the repair of rotating electrical apparatus.

1-2. A copy of the standard is available FREE from EASA website at: www.easa.com.

1-3. A repair record of the procedures followed to refurbish armature windings and other components (including its commutator) must be made and certified in accordance with the Standard.

1-4. A copy of the certified repair record is required under Deliverable 6 to be sent to the

COR.

1-5. All parts shall be made accurate to standard gauge to facilitate replacement and repair.

2. The Contractor shall arrange for transportation to pick up the two crated armatures at the

Hoover Dam Central Warehouse and deliver them to the Contractor’s facility. Hoover Dam Central warehouse is open for pick-up and deliveries from 7:30a.m. to 3:30p.m. (PDT), Tuesday through Thursday only, excluding Federal holidays. Pick up or delivery outside these hours shall be done only after approval from the CO or COR.

mailto:ibr3lcddworkcontrol@usbr.govper http://www.easa.com/

3. The Contractor shall notify the COR of the arrival and departure times at least 48-hours in advance. Advance notice is required to allow Warehouse staff to be available for escort, review of the Job Hazard Analysis (JHA) and for issue and release of the Reclamation provided Special Work Permit (SWP); and Warehousemen and Mechanical Craftsmen are available to operate the forklift and perform any rigging duties that may be needed to load or unload the transport vehicle.

4. A Reclamation escort or inspector will be available on the days and hours approved for work.

5. The Contractor shall inspect, photograph, weigh, measure, and document armature condition upon arrival.

5-1. The Contractor shall provide the following information to the COR before beginning repair on each Armature per Deliverable 5 and 6.

a. Photograph the armature (from at least three positions) upon removal from the crate.

b. Record the name plate data and all marks stamped into the metal for each Armature.

c. Record each Armature’s weight and dimensions in inches & millimeters before repair.

(1) Measure and record core shaft outside diameter.

(2) Measure and record core shaft thickness.

(3) Measure and record core shaft height.

(4) Measure and record the commutator outside diameter.

(5) Measure and record commutator thickness.

(6) Measure and record commutator height.

(7) Measure and record the windings’ outside diameter.

(8) Measure and record the windings’ thickness.

(9) Measure and record the windings’ height.

(10) Measure and record the height of the windings and commutator.

(11) Measure and record the height of the shaft.

(12) Measure and record other dimensions the vendor deems necessary.

(13) Weigh and record armature weight in pounds.

5-2. Record Armature dimensions on paper in WORD format.

5-3. Place all measurements on a sketch of the armature.

6. The Contractor shall clean, inspect, test, repair, rewind, and certify the work was completed as instructed in the EASA Standard (AR100-2015).

7. Core, Commutator or both Core and Commutator Replacement (OPTIONAL LINE ITEM

0020, 0030, or 0020 and 0030, Clause 52.217-7, Option for Increased Quantity—

Separately Priced Line Item). If the test and assessments result in conditions which require the core, commutator or both core and commutator to be replaced, the Contractor shall immediately stop work and submit to the CO and COR the diagnostic test reports indicating the hot spots on the commutator. If any Optional Line is exercised (authorized), the CO will issue a modification to exercise the respective Optional Line Item. The exercise of this

Optional Line Item will include a time extension of 30 workdays or other agreeable timeframe but not to exceed 50 work days. Contractor may not proceed without the authorization from the CO; performance of work without the authorization is at the

Contractor’s own expense.

7-1. Inspection, assessment, and additional repair recommendations must be completed using the practices and procedures stated in Sections One (General) and Two

(Mechanical Repair) of the ANSI/EASA AR100-2015 Recommended Practice Standard.

8. The Contractor shall compare commutator diameter to the minimum acceptable diameter to determine whether the commutator can be reused or must be replaced.

8-1. Undercut and chamfer commutator segments, turn and polish the surface (if needed).

8-2. Balance the armature to the ANSI/EASA Standard (AR100-2015) tolerance.

9. A written repair plan for this armature shall be sent to the COR before work begins per

Deliverable 3.

9-1. Contractor shall provide a sketch, a brief description of the repair plan, a material list, a schedule to complete the work, and an estimated date to deliver each individual armature per Deliverable 5.

9-2. Written approval to proceed with the repair plan will come from the CO.

10. The Contractor shall resurface each armature’s commutator following practices and procedures stated in Section Two (Mechanical Repair), paragraph 2.8 (Commutators) of the

ANSI/EASA AR1002015 Recommended Practice Standard.

11. The Contractor must test and record the results following repair to document the armature’s upgraded condition.

12. The Contractor shall run all tests on the armature in accordance with the practices and procedures stated in Section Four (Testing) of the ANSI/EASA AR100-2015 Recommended Practice Standard.

13. The Contractor shall certify armature tests were performed using calibrated test equipment per Deliverable 6.

14. The Contractor shall perform all tests listed in Section 4.3 Recommended Winding Tests of Standard AR100-2015, including tests on each armature to insure there are no grounds, short circuits, open circuits, incorrect connections or high resistance connections.

15. The Contractor shall certify the rewound armature meets the ANSI/EASA standard and include the items listed below, per Deliverable 6.

15-1. Briefly describe the work completed.

15-2. Briefly describe the commutator’s resurface procedure.

15-3. Briefly describe the test procedure and results.

15-4. Certify the tests comply with EASA Standard AR100-2015.

16. The Contractor shall document each armature is ready for return shipping by completing the following tasks.

16-1. Photograph each armature following repair from three different views (side, top and bottom) to document each armature’s upgraded and undamaged condition.

16-2. Document in writing and sketch each rewound armature’s dimensions and weight as instructed in 5-3 and 9-1.

16-3. Certify each armature’s dimensions and weight do not exceed those taken on arrival before repairs began.

16-4. Ship each armature in a new heavy-duty wood crate to ensure it is secure, supported and protected for the return shipping to Hoover Dam.

16-5. Ensure all certifications, records, reports, and tests are completed for each armature.

16-6. Coordinate with the COR before returning each armature to Hoover Dam.

16-7. Return of armature does not relieve the Contractor of the responsibility to conform to all requirements in this performance work statement.

17. The Contractor must dispose of all items removed from the armature in an environmentally friendly manner and in compliance with all laws, rules and regulations.

18. Work shall be performed and completed in a neat, thorough and workmanlike manner following the best modern practices in the manufacture of high-grade machinery.

D. REFERENCE DOCUMENTS.

The Contractor’s shall refer to the Exhibits 1 through 2 in performance of the work; copies of these exhibits are attached.

1. Exhibit 1. The Electrical Apparatus Service Association Standard (AR100-2015).

2. Exhibit 2. Unit A7 Westinghouse Test and Inspection Data

F. SPECIAL REQUIREMENTS.

1. Contractor’s transport drivers shall follow Reclamation Safety Standards while working on-site at the Hoover Dam Central Warehouse.

1-1. Transport drivers shall comply with all federal, state, and local laws and standards as well as the Reclamation manual Reclamation Safety and Health Standards (RSHS), 2014 Edition. The Contractor may order the RSHS manual (Stock item GPO-024-003-

00178-3) from:

The Government Printing Office

Superintendent of Documents

North Capitol and H St. N.W.

MS-SSMC - Room 566

Washington, D.C. 20401

The Contractor may also download or view the electronic version of the RSHS manual at no charge from Reclamation web site: http://www.usbr.gov/ssle/safety/RSHS/rshs.html

1-2. The Contractor’s transport driver must review, discuss, and sign a Job Hazard

Analysis (JHA) before beginning loading or unloading the armatures at the central warehouse. The Contractor’s transport driver must review and sign a Special Work Permit

(SWP) before beginning work securing the load or preparing to unload armatures at the

Central Warehouse. The SWP authorizes personnel, tools, vehicles, etc., to be on-site for the purpose stated.

G. DELIVERABLES.

1. The Contractor shall provide the items Table 1, List of Deliverables to the COR.

2. Reports shall be compatible with Microsoft Office Suite (Word, etc.) or Adobe (pdf).

3. Attach a cover sheet with the job name and Contract Number to each Deliverable.

TABLE 1 - LIST OF DELIVERABLES

No. Deliverable Item Due date

1 Three (3) digital photographs in PDF format of each armature upon arrival at Contractor’s facility

Within seven (7) days after arrival at the repair facility

2 Sketch of each Armature with dimensions, measurements, weight shown in Word format (1 set per page); upon arrival at Contractor’s facility prior to repairs

Within seven (7) days after arrival at the repair facility.

3 Written repair plan to complete each armature repair and rewind

Within seven (7) days after arrival at the repair facility.

4 Three (3) digital photographs in PDF format of each armature after repair and rewind

Before shipping an armature back to Hoover Dam http://www.usbr.gov/ssle/safety/RSHS/rshs.html

5 Sketch of each Armature with dimensions, measurements, weight shown in Word Format (1 set per page); after repair, rewind, and tests are complete

Before shipping an armature back to Hoover Dam.

6 Certified copy of repairs and test results for each armature to include the repair, rewind, resurface, insulation, vibration, balance and other winding test results.

Before shipping an armature back to Hoover Dam.

F. PERIOD OF PERFORMANCE.

1. The Contractor may request from the COR early site access to review the Central warehouse area used for loading and unloading tractor-trailers.

2. The Contractor shall ship back each Armature as soon as work is completed; at minimum, one Armature every 8 weeks. Armature 1 to be completed and returned within 8 weeks (or sooner) after receipt of award, Armature 2 to be completed and returned at week 16 (or sooner).

G. SPECIAL REQUIREMENTS – SECURITY.

The Contractor is responsible for employee compliance with Hoover Dam Security rules. The COR will arrange to have Government escort while on site. Contractor employees must comply with the following:

1. The operation of Hoover Dam and Power-plant requires continuous and effective security measures. Security is carried out by a federal guard system whose regulations provide for controlled access to all areas of the Facility. Additional restrictions apply to switch yards, power-plants, remote sites, and other critical areas.

2. Construction Work Areas - All areas where work is required under this contract are designated as construction work areas. Reclamation will designate suitable access ways to construction work areas for use by Contractor Employees. Unless specifically authorized, Contractor Employees are restricted to these areas. It is the Contractor’s responsibility to insure Employees work only in areas designated.

3. Restricted Areas – Contractor Employees are not permitted to enter restricted areas unless authorized. Restricted area entry must comply with security provisions established for that area. The Contractor must insure his Employees enter only those areas they are authorized to enter.

4. Contractor’s Tractor-Trailer Truck Parking and Entry Procedure.

4-1. Truck drivers approaching the Central Warehouse must observe all traffic rules and park only in designated areas.

4-2. Arriving Truckers must ring the buzzer on the South office wall to alert warehousemen of their arrival, to show their transport documents and to gain entry into the

Yard and the Warehouse.

4-3. After review of transport documents, warehousemen will open the Yard’s roll gate and direct the trucker to the designated loading and unloading area.

H. PERFORMANCE REQUIREMENT SUMMARY TABLE.

Performance Task Paragraph

No.

Acceptable

Quality Level

Method of

Surveillance

Incentive/Disincentive

Three (3) digital C.1, D.5 Contractor submits required photographs within the 7 days as required by the

PWS

COR receives and Incentive: Positive Past photographs in PDF reviews in Performance evaluation format of each armature accordance with Disincentive: Negative upon arrival at the PWS. Past Performance

Contractor’s facility evaluation

Sketch of each Armature D.5 Contractor COR receives and Incentive: Positive Past with dimensions, submits required reviews in Performance evaluation measurements, weight certified copy of accordance with Disincentive: Negative shown in Word format repair record and the PWS. Past Performance

(1 set per page); upon test results within evaluation arrival at Contractor’s the 7 days as facility prior to repairs required by the

PWS.

Written repair plan to D.9 Contractor COR receives and Incentive: Positive Past complete each armature submits required reviews in Performance evaluation repair and rewind sketch before accordance with Disincentive: Negative repair and rewind; the PWS. Past Performance and after repair evaluation and rewind.

Three (3) digital photographs in PDF format of each armature

D.16 Contractor submits required

3 digital

COR receives and reviews in accordance with

Incentive: Positive Past

Performance evaluation Disincentive: Negative after repair and rewind photographs before shipping each Armature.

the PWS. Past Performance evaluation

Sketch of each Armature D.16 Contractor COR receives and Incentive: Positive Past with dimensions, submits required reviews in Performance evaluation measurements, weight sketch before accordance with Disincentive: Negative shown in Word Format shipping each the PWS. Past Performance

(1 set per page); after Armature. evaluation repair, rewind, and tests are complete

Certified copy of repairs C.7, D.6, D- Contractor COR receives Incentive: Positive Past and test results for each 13, D.15 submits required repair record and Performance evaluation armature to include the certified copy of test results in Disincentive: Negative repair, rewind, resurface, test results before accordance with Past Performance insulation, vibration, shipping each the PWS. evaluation balance and other Armature.

winding test results.