ALEX_HALEY__WMEC_282__SSDG_Inspect_and_Test_R0.pdf

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USCGC ALEX HALEY (WMEC 39)

GENERATOR INSPECT AND TEST

FY2015

Developed By: Elise V Maher

(Rev-0, 08 June 2015)

USCGC ALEX HALEY (WMEC-282) GENERATOR INSPECT AND TEST

ii (Rev-0)

TABLE OF CONTENTS

Revisions Record ......................................................................................................................................... iii Consolidated List of References ................................................................................................................... iv Consolidated List of Government-furnished Property .................................................................................. v Consolidated List of Critical Inspection Items ............................................................................................. vi Principal Characteristics ............................................................................................................................. vii General Requirements WORK ITEM 1: Ship Service Generator, Inspect and Test OPTIONAL WORK ITEM 2: Ship Service Diesel Generator, Clean & Inspect iii (Rev-0)

REVISIONS RECORD

This page is used to record specification revisions, which may have occurred subsequent to a Revision 0 (Rev-0) package. Information listed is intended to provide contractors and field unit personnel a means to ensure all the current specification revision pages are present when reviewing or utilizing this specification package.

DATE REV# WORK

ITEM#

CHANGES MADE

NOTE : All work item and paragraph numbers listed above for a given revision correspond to same numbers in the previous revision. This revised specification is self-contained with all of the above listed changes incorporated.

iv (Rev-0)

CONSOLIDATED LIST OF REFERENCES

The below-listed documents form a part of this specification to the extent specified herein. Approval/publication dates or revision dates/numbers are also identified, to ensure that same document versions are used at time of specification writing and during contract execution.

All Coast Guard drawings, technical publications, and standard specifications will be provided to contractors by the Coast Guard at an appropriate time, or upon request, free of charge. Other Government documents may be accessed – free of charge – as follows:

MIL/DOD/CID Specifications: http://www.assistdocs.com/search/search_basic.cfm

Commandant Instruction Manuals: http://www.uscg.mil/directives/default.asp

Public Laws, Code of Federal Regulations, U.S Codes, and other Federal Government laws::

www.gpoaccess.gov

The Government is aware of the following internet web links where contractors may procure commercial specifications:

American Welding Society (AWS): http://www.awspubs.com/index.php

ANSI, ASTM, IEEEE, NFPA, ASME, SAE Standards: http://www.techstreet.com/

NFPA: http://www.nfpa.org

SSPC Standards and pictorial guides: http://shopping.netsuite.com/sspcmarketplace

COAST GUARD DRAWINGS

Coast Guard Drawing 282-WMEC 145-4, Rev F, General Arrangement 1st Platform 2nd Platform & Hold

COAST GUARD PUBLICATIONS

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification (SFLC Std Spec) 3100, 2014, Inspect, Test and Recondition AC Synchronous Machines In-Place

Surface Forces Logistics Center Standard Specification (SFLC Std Spec) 0450, 2014, Electrical Power for Contractor’s Tools & Equipment

NAVSEA 0961-LP-059-3010, Instruction Manual – Main Generators for U.S. Naval Salvage Vessel ATS-1, 2 and 3 – CGC ALEX HALEY

OTHER REFERENCES

None v (Rev-0)

CONSOLIDATED LIST OF GOVERNMENT-FURNISHED PROPERTY

The following is a list of property, which the Government will furnish. This list supersedes any other material obligations indicated or implied by referenced drawings.

This section is not applicable to this package.

vi (Rev-0)

CONSOLIDATED LIST OF CRITICAL INSPECTION ITEMS

The following is a list of work items, which contain Critical Inspection reports, which the Contractor must complete within the first 25% of the availability contract period (see SFLC Std Spec 0000, paragraph 3.2.6.5 (Inspection report particulars)):

Work Item

Title

1 Ship Service Generator, Inspect and Test vii (Rev-0)

PRINCIPAL CHARACTERISTICS

282' WMEC (CGC ALEX HALEY)

PHYSICAL

Length overall 282' 8" Length between perpendiculars 264' 0" Beam, extreme 50' 0" Beam @ DWL 47' 0" Depth, molded 24' 0" Draft, mean @ full load displacement 15' 0" Full load displacement 3088 long tons Minimum operating displacement 2567 long tons Light ship displacement 2058 long tons

HULL

Hull material Steel

MACHINERY

Main propulsion Diesel Diesel engines Four Caterpillar 3516 Propeller 2 CPP 11' 9" diameter x 7' 4" pitch, 4 blade, bronze Shore tie 440 VAC, 400 Amp Shaft bearings, forward Orion Thrust Shaft bearings, aft Thordon Shaft Seals; fore & aft John Crane Type MX9

TANK CAPACITIES

Diesel oil 653.1 long tons JP-5 (aviation) 79.5 long tons Fresh water 131.3 long tons Ballast 57.2 long tons

1 (Rev-0)

00000_0315_FLT

REC_00000_FLT_ Commercial Project @ CG Facility (1212)

General Requirements

1. SCOPE

1.1 Intent. This standard specification invokes general requirements for conducting vessel repairs performed by commercial contractors at a Coast Guard facility for Coast Guard vessels.

1.2 Term interchangeability. The terms 'Contractor', 'CG Yard', 'NAVSTA EVERETT', 'shipyard', 'Base', and 'Coast Guard Industrial' are used interchangeably in this specification. Where the primary service provider is Coast Guard personnel, references to contractor and other noted descriptors within this specification or within drawings, publications, SFLC Standard Specifications or other commercial and military references are deemed the same as prime service provider.

2. REFERENCES

COAST GUARD DRAWINGS

None

COAST GUARD PUBLICATIONS

Coast Guard Commandant Instruction (COMDTINST) M10360.3 (series), Coatings and Color Manual

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and Allied Processes

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures

OTHER REFERENCES

None

3. REQUIREMENTS

3.1 General. The Contractor shall conform to all requirements specified in SFLC Std Spec 0000 and in this item, as applicable, during the performance of this availability.

2 (Rev-0)

NOTE

The requirements of paragraph 3.1 (General) applies to all work under the scope of this contract, whether explicitly stated in work items or not, and to all other work subsequently authorized by changes, modifications, or extensions to the contract.

3.2 Fire watch requirements. The Contractor shall refer to 3.3.1.3 (Fire watch requirements) of SFLC Std Spec 0000, in accomplishing the following task:

Provide portable fire extinguishers for Coast Guard fire watch personnel. Coast Guard fire watch is in lieu of contractor personnel during the hours of 0800-1600, Monday through Friday, and limited to two Coast Guard fire watch personnel.

Provide fire watch personnel and fire extinguishers for the duration of the availability period, during and beyond noted Coast Guard fire watch support.

3.3 Preservation requirements. The Contractor shall accomplish all preservation tasks, including touch-ups, in accordance with SFLC Std Spec 6310.

3.3.1 Brand name approval. Ensure that all contractor-furnished coatings are in accordance with SFLC Std Spec 6310, Appendix C (Authorized Coatings for Use on Cutters and Boats).

3.3.2 Coating colors and system color schemes. Ensure that all colors and color coat/paint schemes are in accordance with COMDTINST M10360.3, Chapter 6 (Cutter and Boat Colors Exterior and Interior).

NOTE

Unless a waiver has been granted (in writing) by the KO, deviations from authorized coatings (listed in Appendix C of SFLC Std Spec 6310) and colors and color schemes (provided in Chapter 6 of COMDTINST M10360.3) are strictly prohibited.

3.4 Welding and brazing requirements. The Contractor shall perform all welding and allied processes, and NDI in accordance with SFLC Std Spec 0740.

3.5 Environmental protection requirements. The Contractor shall adhere to the following environmental protection requirements in accordance with the SFLC Stand Spec 0000:

3.5.1 Contractor operated (non USCG) facilities. The Contractor shall provide and maintain environmental protection as defined in SFLC Std Spec 0000 Appendix A, Requirements for Environmental Protection at Contractor Operated (Non USCG) Facilities, as applicable, during the performance of this availability. Contractor shall plan for and provide environmental protective measures to control pollution that develops during normal practice, as well as plan for and provide environmental protective measures required to correct conditions that develop during the project. Contractor shall comply with applicable Federal, state, and local laws, codes, ordinances, and regulations in their entirety. Any reference to a specific portion of a Federal, state, or local law, code, ordinance, or regulation in this or any other item shall not be construed to mean that relief is provided from any other sections of the law, code, ordinance, or regulation.

3.5.1 USCG facilities. The Contractor shall provide and maintain environmental protection as defined in SFLC Std Spec 0000 Appendix B, Requirements for Environmental Protection at USCG Facilities, during the

3 (Rev-0) performance of this availability. Contractor shall plan for and provide environmental protective measures to control pollution that develops during normal practice, as well as plan for and provide environmental protective measures required to correct conditions that develop during the project. Contractor shall comply with applicable Federal, state, and local laws, codes, ordinances, and regulations in their entirety. Any reference to a specific portion of a Federal, state, or local law, code, ordinance, or regulation in this or any other item shall not be construed to mean that relief is provided from any other sections of the law, code, ordinance, or regulation.

3.5.2 Test and procedures. The Contractor shall be required to promptly conduct tests and procedures for the purpose of assessing whether operations are in compliance with applicable Environmental Laws. Analytical work shall be done by qualified laboratories; and where required by law, the laboratories shall be certified.

3.5.3 Regulatory notifications. The Contractor shall be responsible for all regulatory notification requirements in accordance with Federal, State and local regulations. In cases where the Coast Guard must also provide public notification, such as storm water permitting, the Contractor must coordinate with the Contracting Officer or COR, and if work is being performed at a USCG Facility, the local Facility Engineer or Engineering Officer. The Contractor shall submit copies of all regulatory notifications to the Contracting Officer and the local Facility Engineer or Engineering Officer prior to commencement of work activities. Regulatory notifications shall be provided for including but not limited to demolition, renovation, National Pollutant Discharge Elimination System (NPDES) defined site work, and remediation of controlled substances such as asbestos, hazardous waste, and lead paint.

3.5.4 Environmental manager. The Contractor shall appoint in writing an Environmental Manager for the project, and shall be responsible for coordinating Contractor compliance with Federal, State, local, and station environmental requirements. The Environmental Manager shall ensure compliance with Hazardous Waste Program requirements, including hazardous waste handling, storage, manifesting, and disposal; implement the Contractors’ Environmental Management Plan; ensure that all environmental permits are obtained, maintained, and closed out; ensure compliance with Storm Water Program Management requirements; ensure compliance with Hazardous Materials including storage, handling, and reporting requirements; as well as coordinate any remediation of regulated substances such as lead, asbestos, and polychlorinated biphenyl (PCB). This may be a collateral position; however the individual must be trained to adequately accomplish the following duties; ensure waste segregation and storage compatibility requirements are met; inspect and manage Satellite Accumulation areas; ensure only authorized personnel add wastes to containers; ensure all Contractor personnel are trained in 40 CFR requirements and individual position requirements; coordinate removal of waste containers; and maintain the Environmental Records binder and required documentation, including environmental permits compliance and close-out.

3.5.5 HW disposal. Contractor shall comply with SFLC Std Spec 0000 Appendix B, Requirements For Environmental Protection At USCG Facilities for HW disposal, and ensure that waste removals are conducted during normal business hours (0800-1600) on Monday through Friday (excluding holidays).

3.5.6 Additional Requirements. The Contractor shall be aware of the following:

3.5.6.1 No Contractor or Subcontractor shall have the authority to sign a Hazardous Waste Manifest using the Coast Guard facility’s EPA Generator ID Number or remove contract generated hazardous waste from the Coast Guard facility without COR or KO-approval.

3.5.6.2 Local environmental regulations at the Government facilities may be more stringent. As with all environmental regulations, the Contractor shall prepare for and comply with local and state regulations.

4 (Rev-0)

3.5.6.3 Coast Guard facilities do not maintain Facilities Response Plans (FRPs) per 33 CFR 154. Contractor shall furnish the FRP when required for over-the-water liquids transfers to and from vessels, and is required for oil/fuel transfers to/from vessels for 250 barrels (10,500 gallons) or more.

3.6 Local Policy. None.

3.7 SFLC standard specification approved changes. The Contractor shall be aware that the following are approved changes to published SFLC 2014 Edition Standard Specifications and supersede published content:

None.

4. NOTES

4.1 QA inspection forms. QA inspection forms (QA-1 thru QA-5), required in SFLC Std Spec 6310 to be completed and submitted during preservation of “critical-coated surfaces”, are provided at the end of this document.

5 (Rev-0)

QA-1 - QUALITY ASSURANCE INSPECTION FORM

(PRESERVATION CHECKLIST)

Vessel Name Hull # Work Item # Work Item Title

Location of Work (incl. frame #’s) Area (sqft)

CHECKPOINT 1 – COATING SYSTEM COMPLIANCE

Ensure all coatings are in compliance with SFLC Std Spec 6310, Appendix C.

CHECKPOINT 2 - PAINT STORAGE

Ensure all coatings are kept at a temperature of 65 to 85°F at all times, unless otherwise specified by the coating mfgr.

CHECKPOINT 3 - AMBIENT CONDITIONS

Ensure surface and surrounding temperatures are each between 50 and 90°F for water-containing coatings, and 35 and 95°F for other coatings, unless otherwise specified by the coating manufacturer(s).

Ensure maximum relative humidity (RH) is as follows, from surface preparations through final curing of topcoat: 50% for tanks, voids, and vent plenum; and 85% for all other areas, unless otherwise specified by manufacturer(s).

Ensure surface temperature is at least 5°F above the dew point, unless otherwise specified by the coating mfgr.

CHECKPOINT 4 - PRE-SURFACE PREPARATION

Remove surface contaminants (soluble salts, loose rust, mud, and marine growth) with low pressure fresh water wash down

(maximum 5,000 psi). If oil and grease are present, perform solvent cleaning, as per SSPC SP-1.

Verify equipment setup, blast media, and surface preparation methods match designated test coupon.

CHECKPOINT 5 - SURFACE PREPARATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure cleanliness of prepared surface is as per specification (i.e.: SSPC SP-11, SP-10, SP WJ-2…).

Verify surface anchor profile using ASTM D4417-Methods B or C against SFLC Std Spec 6310. Conduct profile readings at a minimum of 5 locations for the first 1000-sqft area, and 2 locations for each succeeding 1000-sqft area.

Measure soluble salt conductivity in accordance with SSPC-Guide 15. Conduct 5 measurements per each 1000-sqft area (max.

threshold: 70 microsiemens/cm for non-submerged surfaces, 30 microsiemens/cm for submerged surfaces).

CHECKPOINT 6 - PRIMER COAT APPLICATION

Verify environmental conditions (see CHECKPOINT 3).

Verify proper mixing and stand-in (induction) times.

Ensure no paint is applied when the temperature is expected to drop to freezing before the paint has dried.

Ensure surfaces are completely dry, unless otherwise allowed by the coating manufacturer(s).

Verify wet film thickness (WFT) at random, to prevent under or over application. Verify final DFT.

Brush out all runs, sags, drips, and puddles.

Perform visual inspection for holidays and other defects.

CHECKPOINT 7 – STRIPE COAT APPLICATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure overcoating window is as per manufacturer’s instructions.

After primer coat (mist coat after inorganic zinc), brush-apply un-thinned coat of same primer paint over edges, weld seams, cut-outs, and areas of complex geometries @ 3-4 mils wet film thickness (WFT).

CHECKPOINT 8 – TOP COAT APPLICATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure overcoating window is as per manufacturer’s instructions.

Verify proper mixing and stand-in (induction) times, as applicable.

Verify wet film thickness at random, to prevent under or over application.

Brush out all runs, sags, drips, and puddles.

CHECKPOINT 9 – FINAL INSPECTION

Verify final system dry film thickness. Conduct 5 sets of 3 readings for each of the first 3 100-sqft areas, followed by 5 sets of 3 readings for each succeeding 1000-sqft area.

Ensure that system cure is in accordance with manufacturer's recommendation for intended service.

Ensure potable water tank exhaust ventilation is maintained continuously from and during coating application through final system cure, to exhaust all solvent to the atmosphere and to prevent solvent entrapment.

For immersion coatings (including tank U/W body), record date and time of the following events:

Final coat application: _____/_____; Return to service or removal from environment controls: _____/_____

CHECKPOINT 10 – RECORD KEEPING

Complete, sign, and submit all provided QA Inspection Forms.

Name of QP-1/NACE Inspector Signature Cert. # Date / Time

6 (Rev-0)

QA-2 - QUALITY ASSURANCE INSPECTION FORM

(ENVIRONMENTAL READINGS)

Use one sheet for each activity. Record conditions every four hours from before surface preparation to application of final coating system coat.

DATE &

TIME

ACTIVITY

(Surface preparation, primer coat, barrier coat, top coat, etc…)

LOCATION

(Frame & Deck, relation to equipment, etc.)

TEMPERATURE

% REL.

HUMID-

ITY DEW

PT.

SURFACE AMBIENT

ΔT

| DP -

Surface |

7 (Rev-0)

QA-3a - QUALITY ASSURANCE INSPECTION FORM

(SURFACE PROFILE LOG FOR PROFILE MEASUREMENTS IAW ASTM D4417-METHOD-C)

Location of Work (Frame References) Area (sqft)

SURFACE PREPARATION METHOD

PROFILE ACHIEVED (mils) Min Max Mean

SSPC-SP-10/NACE No. 2

SSPC-SP WJ-1/NACE WJ-1

SSPC-SP WJ-2/NACE WJ-2

SSPC-SP WJ-3/NACE WJ-3

SSPC-SP WJ-4/NACE WJ-4

SSPC-SP-3

SSPC-SP-11

SSPC-SP-11 (inaccessible area) Brush-blasting (non-metallic substrate)

Abrasive Manufacturer and Sieve Size: _________________________________

Place surface profile replica tapes in the spaces provided below, to serve as permanent QA record. Maintain a separate log for each location. When an area is divided into separate sections, maintain a separate log for each section.

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Mean Mil Reading (IAW ASTM D4417-Method C) for above 15 readings: ______________

8 (Rev-0)

QA-3b - QUALITY ASSURANCE INSPECTION FORM

(SURFACE PROFILE LOG FOR PROFILE MEASUREMENTS IAW ASTM D4417-METHOD-B)

SURFACE PREPARATION METHOD

PROFILE ACHIEVED (mils) Min Max Mean

SSPC-SP-10/NACE No. 2

SSPC-SP WJ-1/NACE WJ-1

SSPC-SP WJ-2/NACE WJ-2

SSPC-SP WJ-3/NACE WJ-3

SSPC-SP WJ-4/NACE WJ-4

SSPC-SP-3

SSPC-SP-11

SSPC-SP-11 (inaccessible area) Brush-blasting (non-metallic substrate)

Abrasive Manufacturer and Sieve Size: _________________________________

Record measurements taken in the spaces provided below, to serve as permanent QA record. Maintain separate log for each location. When an area is divided into separate sections, maintain a separate log for each section.

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils Mean Mil Reading (IAW ASTM D4417-Method B) for above 10 readings (by column):

_____ mils _____ mils _____ mils _____ mils _____ mils

9 (Rev-0)

QA-4 - QUALITY ASSURANCE INSPECTION FORM

(SURFACE SOLUBLE SALT CONDUCTIVITY LOG)

SOLUBLE SALT CONDUCTIVITY MEASUREMENTS IAW SSPC-GUIDE 15

DATE TEST LOCATIONS

CONDUCTIVITY

(microsiemens/cm)

10 (Rev-0)

QA-5 - QUALITY ASSURANCE DATA FORM

(COATING THICKNESS)

(Use one sheet for each sequence)

Coating Mfg Product Name Batch # Induction

Time Coating System Sequence

(Primer/Touchup/3rd Coat, etc.)

DRY FILM THICKNESS (DFT) MEASUREMENTS IAW SSPC-PA 2

SPOT 1 2 3 4 5

AVERAGE

VALUE

*BASE METAL

READING (BMR)

*Required, If Magnetic Pull-Off (Type I/Banana) Gauge Is Used.

Location (Frame Reference): ___________________

SPOT 1 2 3 4 5

Overall Avg. DFT

ADJUSTMENTS

1 Avg. BMR Deviation

3 Before Adjustments

After Adjustments

Avg.

Location (Frame Reference): ___________________

SPOT 1 2 3 4 5

Overall Avg. DFT

ADJUSTMENTS

1 Avg. BMR Deviation

3 Before Adjustments

After Adjustments

Avg.

Location (Frame Reference): ___________________

SPOT 1 2 3 4 5

Overall Avg. DFT

ADJUSTMENTS

1 Avg. BMR Deviation

3 Before Adjustments

After Adjustments

Avg.

Application Method (Airless, Conventional Spray, Rolled) Average DFT

11 (Rev-0)

S14_XXX_3100_JSP_1014_282

WORK ITEM 1: Ship Service Generator, Inspect and Test

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to inspect and test Ship Service Diesel Generators (SSDG) in place on the Cutter. The Generator data is shown in Table 1 below:

TABLE 1 – GENERATOR DATA

QUANTITY CHARACTERISTICS MANUFACTURER LOCATION

300 kW, 450 VAC, 60 Hz, 3 phase, 1200 RPM, 0.8 power factor, Connection Star, Insulation Class B.

Laurence, Scott & Electromotors Auxiliary Machinery Room

1.2 Government-furnished property.

None.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 282-WMEC 145-4, Rev F, General Arrangement 1st Platform 2nd Platform & Hold

COAST GUARD PUBLICATIONS

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification (SFLC Std Spec) 3100, 2014, Inspect, Test and Recondition AC Synchronous Machines In-Place

NAVSEA 0961-LP-059-3010, Instruction Manual – Main Generators for U.S. Naval Salvage Vessel ATS-1, 2 and 3 – CGC ALEX HALEY

OTHER REFERENCES

None.

3. REQUIREMENTS

3.1 General.

12 (Rev-0)

3.1.1 CIR

3.5.2 Cleaning

3.1.2 Tech Rep.

3.1.2.1 The Contractor shall provide the services of a Technical Representative (Tech Rep), who is familiar with AC synchronous machines and shall be present during the performance of this work. Both the technical representative and the Coast Guard Inspector shall be present to witness the performance of all inspections and test performed under this specification.

3.1.2.2 The technical representative shall be employed by a shop that is a member of the Electrical Apparatus Service Association (EASA) and that shop shall adhere to the association’s standards, including ANSI/EASA AR100.

3.1.2.3 The Contractor shall submit a copy of the Tech Rep’s résumé and a list of references to the COR at the Arrival Conference.

3.1.3 Protective measures - general. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces in the vicinity of the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences).

3.1.5 Advance notice. Notify the Coast Guard Inspector at least 24 hours before performing each test, and inspection. The Coast Guard Inspector shall be present shipboard and in the shop to witness the performance of all tests and inspection performed under this specification.

3.1.6 Calibrated tester. The Contractor shall provide calibrated Motor Circuit Evaluation tester for testing SSDG.

3.1.7 Documentation. Submit a CFR after completion of each inspection and test.

3.2 Operational test - initial. Prior to commencement of work, the Contractor shall witness Coast Guard personnel perform an initial operational test of all items or shipboard devices to be disturbed, used, repaired, or altered, to demonstrate existing operational condition.

3.3 Visual inspections. Perform a visual inspection of the machine components, for the presence of contamination by dust, dirt, moisture, oil, and foreign matter (carbon, copper, and mica). Attempt to determine the origin, such as leaking seals, or any unusual conditions prior to the start of cleaning. Note all abnormal conditions on the stator, rotor, windings, and risers, and if installed, brushless exciter, diodes, collector rings, brush holders, brushes, and brush holder springs. Carefully examine the interior of the machine for loose objects such as, nuts, tools, and cleaning rags; remove all such items. Inspect all electrical connections for tightness. Check all wedges, bands, and soldered connections and correct any minor deficiencies. Check for evidence of overheating, both general and localized. Record all findings, including the types of contaminants (oil, water, carbon, dirt, etc.) found.

13 (Rev-0)

3.3.1 Inspect the belt drives for the exciters of each SSDG listed in the Table 1.

3.3.2 Inspect and clean terminal connection of each SSDG listed in the Table 1.

3.4 Insulation resistance test. The Contractor shall perform insulation resistance test with support of the Tech Rep in accordance with Para 3.2.3.3 of SFLC Std Spec 3100 on each SSDG listed in the Table 1.

3.5 Insulation resistance polarization index (PI) test. The Contractor shall perform PI test with support of the Tech Rep in accordance with Para 3.2.3.4 of SFLC Std Spec 3100 on each SSDG listed in the Table 1 on following items:

Stator

Exciter Armature

Exciter Filed

3.5.1 A PI value of less than 2.0 indicates that the windings are moist or dirty. Submit a CFR

3.5.2 Cleaning. Submit CIR noting condition of the generator and cleanliness conditions. Optional Clean and Inspect work item is included in this package.

3.6 Automatic voltage regulator (AVR). The Contractor shall remove AVR from each SSDG for bench testing.

3.6.1 The Contractor shall inspect, clean and test AVR of each SSDG listed in the Table in accordance with Tech Pub.0961-LP-059-3010.

3.6.2 After completion of testing AVR, the Contractor shall re-install AVR to its original operating condition.

3.7 Operational test – post repairs. After completion of work, the Contractor shall thoroughly test, in the presence of the Coast Guard Inspector and demonstrate all items or shipboard devices that have been disturbed, used, repaired, altered, or installed to be in satisfactory operating condition. Submit a CFR

4. NOTES

4.1 Polarization index test. Polarization index (PI) is the ratio of the 10-minute insulation resistance value to the 1-minute insulation resistance value. The change in insulation resistance with the duration of the test potential application is useful in appraising the cleanliness and dryness of a winding. Insulation resistance of a winding will normally increase with the duration of the test voltage. The measured insulation resistance of a dry winding in good condition will reach a fairly steady value in 10 to 15 minutes. If the winding is wet or dirty, the steady value will usually be reached in 1 or 2 minutes. The slope of the curve (typical winding shown in Figure 2 below) is an indication of insulation condition.

14 (Rev-0)

31120_WJW_0313_FLT

REC_31120_FLT_282’ WMEC

ALEX HALEY(0210)

OPTIONAL WORK ITEM 2: Ship Service Diesel Generator, Clean & Inspect

1. SCOPE

1.1 Intent. This optional work item describes the requirements for the Contractor to recondition, and test in place one Ship Service Diesel Generator (SSDG) in place on the Cutter. Optional item may be activated up to 4 times. Bid pricing should reflect a single cleaning. The Generator data is shown in Table 1 below:

TABLE 1 – GENERATOR DATA

QUANTITY CHARACTERISTICS MANUFACTURER LOCATION

4 * 300 kW, 450 VAC, 60 Hz, 3 phase, 1200 RPM, 0.8 power factor, Connection Star, Insulation Class B.

Laurence, Scott & Electromotors Auxiliary Machinery Room

* The Contractor shall provide cost proposal to clean one SSDG in place.

1.2 Government-furnished property.

None.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 282-WMEC 145-4, Rev F, General Arrangement 1st Platform 2nd Platform & Hold

COAST GUARD PUBLICATIONS

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification (SFLC Std Spec) 0450, 2014, Electrical Power for Contractor’s Tools & Equipment

Surface Forces Logistics Center Standard Specification (SFLC Std Spec) 3100, 2014, Inspect, Test and Recondition AC Synchronous Machines In-Place

NAVSEA 0961-LP-059-3010, Instruction Manual – Main Generators for U.S. Naval Salvage Vessel ATS-1, 2 and 3 – CGC ALEX HALEY

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OTHER REFERENCES

None.

3. REQUIREMENTS

3.1 General

3.1.1 CIR.

None.

3.1.2 Tech Rep.

3.1.2.1 The Contractor shall provide the services of a Technical Representative (Tech Rep), who is familiar with AC synchronous machines and shall be present during the performance of this work. Both the technical representative and the Coast Guard Inspector shall be present to witness the performance of all tests, inspections, and cleaning operations performed under this specification.

3.1.2.2 The technical representative shall be employed by a shop that is a member of the Electrical Apparatus Service Association (EASA) and that shop shall adhere to the association’s standards, including ANSI/EASA AR100.

3.1.2.3 The Contractor shall submit a copy of the Tech Rep’s résumé and a list of references to the COR at the Arrival Conference.

3.1.3 Protective measures - general. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces in the vicinity of the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences).

3.1.5 Advance notice. Notify the Coast Guard Inspector at least 24 hours before performing cleaning and inspection. The Coast Guard Inspector shall be present shipboard and in the shop to witness the performance of all tests and inspection performed under this specification.

3.1.6 The Contractor shall perform work on this item in conjunction with Work Item: Ship Service Generator, Inspect and Test

3.17 Documentation. Submit a CFR after completion of each cleaning and test.

3.2 Requirements. The Contractor shall accomplish all work detailed in SFLC Std Spec 3100, with the exception of the following (unless a Change Request has been authorized and released by the KO):

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3.2.1 Bearing wear. Do not measure and record bearing wear in accordance with SFLC Std Spec 3100, Section 3.2.3.6, Bearing wear.

3.2.2 Collector rings. Do not measure and record collector ring wear and concentricity in accordance with SFLC Std Spec 3100, Section 3.2.3.7, Collector ring wear and concentricity.

3.2.3 Rotor extraction. Do not remove the rotor for cleaning within the compartment in accordance with SFLC Std Spec 3100, Section 3.2.3.8, Rotor removal.

3.2.4 Installed prime mover. During drying operations, the installed prime mover (e.g., engine or barring gear) may not be used to spin the rotor while circulating current through the field windings.

3.3 Insulation treatment. The Contractor shall touch up thin and bare spots on the cleaned windings with an air drying varnish in accordance with SFLC Std Spec 3100, 3.3.2, Insulation treatment.

3.4 Utility services. The use of Coast Guard utility services, both afloat and ashore, for performance of this work item is restricted as follows:

3.4.1 Electrical power. Electrical power for temporary tools and equipment used to accomplish this work item shall comply with SFLC Std Spec 0450. When no other power source options are practicable, such loads may be energized from a temporary generator located afloat or ashore in accordance with Appendix E of SFLC Std Spec 0450.

3.4.1.1 Dockside equipment. Power solely for dockside tools and equipment may be taken from the dockside electrical power distribution system in accordance with Appendix A (preferred) of SFLC Std Spec 0450 or from the shipboard electrical power distribution system in accordance with Appendix D of SFLC Std Spec 0450.

3.4.1.2 Shipboard equipment. Power solely for shipboard tools and equipment may be taken from the ship service electrical distribution system in accordance with Appendix B (preferred) of SFLC Std Spec 0450 or from the dockside electrical power distribution system in accordance with Appendix C of SFLC Std Spec 0450.

3.4.2 Potable water. Hot and cold potable water may be obtained from shipboard systems. Cold potable water may be obtained from dockside connections.

3.4.3 Compressed air. Compressed air for tools and generator hand cleaning may be taken from the ship service air system. Air that is to be blown into a generator shall be filtered for particulate, water, and oil prior to discharge.

3.5 External heating. The Contractor shall apply external heat following cleaning to dry out the windings. The heater power rating will vary with the amount of equipment to be dried, degree of enclosure, and amount of ventilation. The estimate in Table 2 below assumes that no heat is lost by radiation or by forced or natural convection; consequently, the input power rating should be increased by a few kilowatts to compensate for heat losses.

3.5.1 Limit heat input so that winding temperatures do not increase more than 7 °F per hour.

3.5.2 Do not exceed a winding temperature of 203 °F.

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TABLE 2 – EXTERNAL HEATING DATA

MACHINE

WEIGHT

(LBS)

HEATER POWER

HEATUP RATE

(°F/H)

TEMPERATURE

RISE (°F) DURATION (H)

(KW) (BTU/H)

6689 1.5 5118 7 143 5.4

4. NOTES

4.1 Conditional performance. This work item is performed only when warranted by the condition of the generator windings. The mere presence of dust is not sufficient justification to perform this work item.

4.1.1 Note that there is some risk that solutions used during the cleaning process may penetrate through microscopic cracks in the varnish, carrying contaminants deeper into the windings through capillary action. Once so embedded, such contamination cannot be removed and insulation resistance could actually be degraded such that a costly and time consuming rewind would be necessary.

4.1.2 Cleaning is normally only warranted when the windings have been wetted by sea water or insulation resistance trends suggest that the machine will fall below the minimum acceptable insulation resistance for operation before the next depot level availability.

4.2 Shop cleaning. This generator is (rotor only) removable from the vessel without making a hull cut.

For machines that can be removed from the vessel through existing accesses or openings created by other work items, it is generally quicker and more cost effective to offload the affected generator from the vessel and perform the work ashore in a generator repair shop. Such tasking should be performed under “Ship Service Diesel Generator, Overhaul” and not this work item.

4.3 MPC Coverage. Work in this specification item covers work in the following MPCs:

E-S-6723 SSDG Exciter Drive Belts

File details come from the government source that posted it. Updated .