ML20129A063
| ML20129A063 | |
| Person / Time | |
|---|---|
| Site: | Satsop |
| Issue date: | 02/20/1985 |
| From: | Barton H, Harris V, Hulbert D WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| To: | |
| Shared Package | |
| ML20129A046 | List: |
| References | |
| WMC-051, WMC-051-R02, WMC-51, WMC-51-R2, NUDOCS 8506040455 | |
| Download: ML20129A063 (74) | |
Text
_
WASHINGTON PUBLIC POWER 4t3 SUPPLY SYSTEM s
PRESERVATION OF ASSETS PREVENTATIVE MAINTENANCE PROGRAM WMC-051 REVISION 2 FEBRUARY 20, 1985 UNCONTROLLED COPY-NOT TO.BE USED FOR CONSTRUCTION i
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/ PRESERVATION OF ASSETS-
/ PREVENTATIVE MAINTENANCE PROGRAM 1985 #AY 28 PM i: ql3
,/ REGIONypay
/
Prepared by: 8 ;2./g7/
- 11. L. Barton, WNP-3 Project Engineering Approved by: Idde~ <-NP-32/e/>'
D. I. Hulbert, Engineering Assistant f
, Program Director S '~
as 3 k g5 V. R. Harris, WNP-3 Plant Manager (Acting)
- 4. k- 5/N if H. Worchel, Ebasco Project Engineer
/6 [
B. D. FbiMer, Ebasco SMe innager J
_ .__ M }l . ) e t_ ,I/W'sl- 6
^
3rP. Sluka, Ebasco Project General Manager E .[ S!ff!BG L. J. Garvin, WNP-3 J roject Q. A. Manager 3- 2 2-W A. D. Kohler, WNP-3 Program Director l
6 WMC 051 Revision 2 i 02/20/85 i
w TABLE OF CONTENTS SECTION PAGE 1.0 OBJECTIVE 2 2.0 DEFINITIONS 4 3.0. CRITERIA 5 4.0 MAINTENANCE PROGRAM CONSIDERATIONS S
~5.0 MAINTENANCE REQUIREMENTS 6 6.0 REPORTING REQUIREMENTS ,
7 7.0 PR.0 GRAM IMPLEMENTATION 8 APPENDICES A.~ MAINTENANCE REQUIREMENTS BY EQUIPMENT. TYPE B. WNP-3 CORROSION MONITORING PROGRAM C. HYGRO THERM 0 GRAPH PLANT MONITORING D. WNP-3 PRESERVATION PROGRAM FOR ELECTRICAL AND ELECTRONIC COMPONENTS NOTE: Appendices will be issued as separate documents and periodically updated.
. Revision 2 02/20/85 1
PRESER/ATION OF ASSETS I PREVENTAT!VE MAINTENANCE PROGRAM l l
1.0 OBJECTIVE The objective of this maintenance plan is to define a Preservation of Assets Preventative Maintenance Program which will be in effect through-out the duration of the extended construction delay. In preparation of restart and for the-balance of the construction phase this plan will be
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revised and necessary modifications will be made. This plan establishes minimum requirements for all WNP-3 assets. It includes real property and equipment required for construction, plant permanent components and systems still in the construction phase stored in the warehouse or inpl ace. This plan provides requirements which in turn may be used to determine maintenance costs and manpower requirements to be included in the WNP-3 Management Plan and to establish minimum maintenance guide- .
lines which will be implemented in specific maintenance instructions.
1.1 Background
The ' delay of construction of this project is a result of several issues that impact the ability of the Supply System to continue financing construction of WNP-3. As a result of the status of these issues, on May 27, 1983, the Executive Board through Resolu-tion No. 147 directed that the Managing Director slowdown con-struction on WNP-3 for a period not to exceed thirty (30) days in such a manner that, should additional funding be found during that period, work could be resumed with no impact on the 1983 total budget and official schedule. Then, on July 8,1983, the Execu-tive Board Resolution No.152 directed the Managing Director to implement an immediate extended construction delay of Project 3 until. an assured source of funding for continued construction can be obtained and to prepare and deliver a detailed implementation plan to the Exective Board.
1.1.1 The WNP-3 Management Plan directed that the following actions :.be taken for the preservation of assets:
Operate and maintain temporary and permanent plant systems which are necessary to preserve the plant such as HVAC, electrical distribution, lighting, and dewatering, etc.
Operation of fire protection system.
Operate and maintain other plant systems necessary to facilitate extended plant construction delay such as construction water, sewage treatment, etc.
Maintain records of. above activities to satisfy licensing, permits, agreements and insurance require-
. .ments .
Revision 2 02/20/85 ,
l
- Evaluate, determine and implement required preserva-tion activities.
- Evaluate, determine and implement required long-term preventive maintenance and preservation activities in the event of a prolonged construction delay.
Correct deficiencies identified during preventive maintenance.
Preserve and maintain existing operational spare parts. Procure, receive, store and issue parts and
. supplies necessary for plant preservation.
1.1.2 The following construction activities are being accom-plished as directed by the WNP-3 Management Plan.
- Complete in-process welds and associated non destruc-tive examination (NDE) work.
Complete fire protection pumps and tanks and energize completed portions of permanent systems.
Complete mechanical and electrical work at makeup water wells. (Necessary te provide ability to cycle pumps.)
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- Comp 1'ete certain identiff'ed terminations, and pull pre-cut cable. (Facilitates equipment closure. )
- Install cathodic protection necessary for long-term layup. (Engineering requirement regardless of term of layup. )
Perform touch-up painting and coating, as specified, such as external steel surface areas of the contain-ment vessel. (Required to remain within design cor-rosion allowance).
Complete weatherizing of administration building and site access facility. (Requirement for- preservation of permanent assets located and stored within these facilities.)
- Continue care and maintenance of equipment identified by the Construction Manager; start turnover of asset preservation responsibilities to Owner.
- Layup of Nuclear Steam Supply System (NSSS).
Inventory and assume custody of Owner and Contractor furnished permanent plant materials and equipment.
' Revision 2 02/20/85 i
- Review, disposition, and closeout as appropriate NCRs, DDNs and Conditional Releases.
Carry out drawing roll-up and documentation turnover on all completed work.
Bring documentation to current state on all partially completed work and turnover to the Construction Manager.
- Perform walkdown of plant and enter status in Con-struction Commodity Control System (CCCS) and support design implementation tracking . program as directed by the Construction Manager.
- Energization of the 230 KV line. (Cable manufacturer recommendation for long-term preservation.)
1.1.3 Construction Phase Maintenance Program Prior to the extended construction delay, equipment was maintained by Contractors and Construction Manager. Resi-dent . Engineering was responsible for the development of the Care and Maintenance Instructions (CMI's). Equipment was protected by covers or shrouds and space heaters (lights). Most large motors and motor control centers have internal space heaters energized from construction power. Periodic rotation of equipment shafts and megger-ing of motors was required. The requirements were not limited by equipment quality class or cost on a systematic l bases.
2.0 DEFINITIONS 2.1 WNP-3 Management Plan A description of the policy and guidelines to be followed in executing an ' extended construction delay at WNP-3.
2.2 Design Implementation Tracking System (formerly Design Verifica- l tion System)
A computer system which demonstrates the status of the implementa-tion of design drawing modifications and . revisions in the as built condition.
2.3 Construction Commodity Control System A computer system for tracking the status of hardware through pro-curement, receipt, installation and provisional acceptance.
Revision 2 02/20/85 -4
3.0 MAINTENANCE PROGRAM CRITERIA 3.1 The minimum maintenance requirements established by this program, including the additional consideration of. the requirements and commitments of 10CFR 50 App. B, the CP and FSAR, are adequate to assure licensability of the plant.
3.2 The maintenance. requirements established by this program will result in a least cost over the design life of the plant in CY83 dollars.
4.0 MAINTENANCE PROGRAM CONSIDERATIONS 4.1- Status of Plant Completion With a plant completion of 76%, buildings with installed equipment -
are essentially weather tight with several localized exceptions. l Most mechanical components are in place. . Piping systems generally lack closure. The' only wetted piping systems other than fire pro-tection are in the Turbine Building. A portion of the Fire Pro-tection System is complete- and operational. HVAC components are installed but not operational. Space heaters in MCCs are. powered from construction power. Essentially all other space heating is provided by lights under shrouds. Major electrical / electronic I&C components are in place but unpowered.
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4.- 2 Duration of Delay Period This maintenance program is predicated on a delay period of a min-imum of two years, now extended to 6 years. The equipment condi- l-tion shall be monitored on a continuous basis and the PM require-ments modified as required to' maintain adequate preservation for a-longer period should it become necessary.
4.3 Site Environmental Conditions Local weather. is characteristic of mid latitude coastal environ-ment, Temperatures are stable with mild. seasonal and diurnal tem-perature variations. The site experiences approximately 60 inches rainfall per year and high humidity levels approximately 9 months of the year. The plant environment during the extended construc-tion delay period is generally more benign than that encountered in the construction phase. It is intended that doors and outside openings be closed and areas be draft free and floors clean, re-sulting in no appreciable airborne contamination.
In evaluating the data taken to date, it reflects that the RS/RAB/FHB temperature remains constant on a day-to-day. basis with gradual changes winter to summer. The inside relative humidity fluctuates with respect to changes in the outside environment, and
. generally is 10 to 20 percent or more lower than the outside Revision 2
.02/20/85 i
humidity. The TB follows the outside conditions more closely.
The temperature - stability is such that even with changes in humidity : levels, the dew point is not reached. No evidence of ,
O- condensation in any plant equipment has been observed. As a part of the preventive maintenance program the temperature and humidity I
conditions in the plant t'uildings are monitored and documented.
See Appendix C. . Selected age sensitive safety-related components are monitored in order to develop .a temperature history that would support extension of the components qualified life.
4.4. Use of Vapor Phase Inhibitors Vapor phase inhibitors (VPIs) are not approved for use on NSSS primary coolant. wetted systems or the secondary side of the steam generator. Use of VPI on any component which may feed into either of the above systems requires that the component be isolatable from the' restricted volumes both ' during use and during future flushing of the components at the end of the layup period.
4.5 - Manufacturer's Recommendations and Warranties Maintenance recomendations furnished by the manufacturer . provide the basis for a preventative maintenance plan for any equipment.
However, the recomendations provided may be very conservative for warranty or other comercial considerations. The Preservation of Assets Maintenance Program shall consider the manufacturer's recommendations._ Manufacturer's instructions may be modified is Q provided . adequate documented.
engineering justification provided and 4.6 Activities At Other Mothballed Plants Information available on. activities at other plants in similar mothball conditions is- limited. The maintenance plan for WNP-1 is available and shall be considered during the development of the WNP-3 program. ' Uniqueness of site conditions will be considered. l 5.0 MAINTENANCE REQUIREMENTS 5.1 Listed below are ~ the general factors by which the preventative maintenance (PM) requirements for WNP-3 equipment, piping and sys-tems and structures are evaluated. l 5.1.1 Importance to safety and related regulatory requirements.
5.1. 2 Vulnerability of the equipment to the conditions encoun-
'tered during the extended construction delay considering the materials used in fabrication and the storage or in-sta11ation environment.
O '
Revision 2 02/20/85 5.1. 3 Sensitivity of the equipment to PM and evaluation of the potential for significantly improving equipment opera-
.O tional life by PM actions.
V 5.1.4 Vendor recommendations provided in operation and main-tenance manuals and in equipment qualification reports.
5.1. 5 Estimated costs considering initial procurement, replace-ment, repair, PM and potential schedule impact.
5.1.6 Vendor warranties considering the effect of the extended construction delay and the potential for any significant monetary recovery. Vendor warranty requirements and/or recommendations are a primary factor for the NSSS and T/G components.
5.2 The WNP-3. equipment list has been reviewed and the equipment grouped by generic type. The PM requirements are established for each type of equipment considering the ~ factors listed above and are reflected in specific Care and Maintenance Instructions (CMI's) and Scheduled Maintenance System (SMS) tasks developed for each piece of equipment. Minimum criteria are provided in Appendix A. Equipment requiring. special maintenance considera-tions is identified by exception to the generic action noted.
5.3 WNP-3 Engineering's Corrosion Monitoring Program identified in Appendix B shall be incorporated into this Preventative Mainte-dg nance program. The corrosion monitoring program includes atmo-spheric corrosion test racks in the field and in the buildings.
Coupons are monitored for uniform galvanic and pitting types of corrosion. Corrosion coupon materials are representative of actual plant components (i.e., NSSS vessel and piping, carbon steel piping, steam piping, anchor bolting, equipment bolts, rein-forcement bar, tanks, pumps and stiff clamps). The results of the qualitative and quantitative corrosion sampling shall be con-sidered in the on-going review of the preventative maintenance practices.
5.4 Preventative maintenance requirements, for plant items in areas having coating or blast cleaning activities, shall be modified or l deferred as required _during this activity to preclude contamina-tion. Following completion of the coating activity, an inspection of the items will be performed to identify any contamination or damage from blasting / coating or deterioration from lack of mainte-nance requiring corrective action. Then routine preventative maintenance activities will be resumed. General protection during the blasting / painting operations for the R8/RAB shall be as directed in WPEB-84-5030.
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Revision 2 02/20/85 6.0 REPORTING REQUIREMENTS m 6.1 A report on the status of the Preventative Maintenance Program
(_/ shall be prepared monthly by the Construction Manager and sub-mitted to the Owner. Input to the report shall be provided by all implementing organizations. The reports shall discuss any major problems encountered, the corrective actions taken and provide recommendations for changes to. the minimum requirements of this p1an.
6.2 Engineering shall review all Preventative Maintenance Program l reports and initiate revised minimum requirements as required.
7.0. PROGRAM IMPLEMENTATION The PM requirements in Appendix A are the minimum requirements and shall be met by all implementing organizations.
7.1 Program Responsibility The existing program implementation responsibility remains un-changed with the Construction Manager having the overall responsi-bility including the establishment of specific equipment mainte-nance instructions. l 7.2 Performance of Maintenance Tasks O The Supply System Operations Maintenance, the Construction Manager and Contractor personnel continue to perform preventative and cor-rective maintenance tasks in accordance with the Construction Manager's requirements.
7.3 Deviations from Minimum Requirements The Construction Manager shall review the existing requirements of.
CMI's and insure that they at least meet the minimum requirements of Appendix A. Implementing organizations, who during the per-formance of preventative maintenance recognize requirements which appear to be in excess of that necessary to protect equipment, shall recommend to the Construction Manager changes to CMI's. The !
Construction Manager shall process the recommended changes in accordance with the established procedures.
7.4 Provisionally Accepted Systems Preventive and corrective maintenance of components and/or systems which have been provisionally accepted or early released by the Supply System,. shall be performed in accordance with the Test and Startup Program Procedures.
O Revision 2 02/20/85 _ __ _- __ . _ _ _ . . _
O PREVENTATIVE MAINTENANCE REQUIREMENTS BY EQUIPMENT TYPE APPENDIX A TO WMC-051 a
Prepared By: d[ ~
2 V//g' Howard L. Barton, Project Engineer '
.r k- Approved By: O f f d .- e 7/ 'N/
D. I. Hulbert, WNP-3 Engineering Assistant Program Director h6 3-/2-8S" R. A. Moen, Materials and Welding Manager G./J.8Ac.cx f,,gLW %bc- 7/,}y G. A. Block, Systems Engineering Manager f' !:'c ' ,
- fi G ?)
H. Worphel, Eb co Project Engineer'ng
/' <
f i >}/ .f h $b V. R. Harris, Acting Assistant Plant Manager
.Q /- l- 622!86 L. J. Garvin, Project Quality Assurance Manager 1
0 V -
WMC-051 APPENDIX A REY. 1 02/20/85
Preventative Maintenance Requirements by Equipment Type O intacoucT10s The Preventative Maintenance requirements provided in Appendix A represent
~ the generic minimum requirements for the plant conditions encountered during the extended construction delay period. More conservative activities justi-fied ~by other considerations may be initiated by management direction. The use of heat, coverings or internal preservation on pumps, compressors, valves, valve actuators, motors, dry transformers, ar.d switchgears shall be addressed in equipment specific maintenance instructions due to the wide range of application of these. components throughout the plant. Upon restart of construction, existing conditions shall be reevaluated and revisions to these generic requirements and implementation instructions will be published as required.
The generic classes of equipment in this appendix represent all equipment located on the site except for those systems formally released to the Owner under the provisional acceptance procedures. Preventative Maintenance re-quirements for provisionally accepted equipment are identified in the Plant Procedure Manual.
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.O WMC-051 APPENDIX A REV. 1 02/20/85 A-1
Appendix A O. PUMPS AND AIR COMPRESSORS o General Requirements All openings: Secured with caps, plugs, tape.
Grease lubricated bearings: Initially lubricated, excess grease removed.
Oil lubrication reservoirs / systems: Service with VPI.
External unpainted machine surfaces: Coat with an approved Corro-sion Preventative Compound (CPC).
.o Periodic Requirements Quarterly Visual --
Housekeeping: General cleanliness, covers and caps installed.
Gearboxes and reservoirs: Not leaking.
Unpainted external machine surfaces: Coated with CPC.
Identify deleterious corrosion and coating condition Annually _--
Oil Reservoirs: Respike with VPI.
o Special Requirements None.
o Comments None.
O WMC-051 APPENDIX A REV. 1 02/20/85 A-2
.)
l- : VALVES
-o General Requirements O Large Bore None.
Small Bore i*
-None.
'o Periodic Requirements t See Appendix B.
- -o Special Requirements None o Comments All accessable machined surfaces of valves were coated with CPC when they were received in the warehouse. When valves which need reapplication of CPC are observed during routine plant activities, a maintenance action to accomplish the work shall be initiated.
- (j' ' . Valve operation not required. If operated, check condition of CPC on machined surfaces.
e N
9 o WMC-051 APPENDIX A REV.1 02/20/85 A-3
l VALVE ACTUATORS o General Requirements l7 l Pneumatic cylinder actuators: Coat cylinder internals with VPI.
- - Seal openings.
o Periodic Requirements Quarterly Visual Motor Operated --
Housekeeping: General cleanliness, covers. l Identify any deleterious corrosion and coating condition.
! o - Special Requirements Solenoid actuators: No PM actions required Hydraulic Actuators:
Paul Monroe Hydraulics Inc.: Service and actuate periodically per manufacturers instructions.
Anchor Darling Air Powered Hydraulic Actuator: Continue stor-age in Level B storage conditions.
Borg Warner Air Powered Hydraulic Actuator: Continue storage in Level B storage conditions.
o Comments t
None.
t WMC-051 APPENDIX A REV. 1 02/20/85 A-4 bewulm h dus i'an i ,u -
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INSTRUMENTATION AND COMPUTERS
,_ o General Requirements Local Mounted Instrument Racks -- Heated and shrouded in protec-tive cover.
Computers: Maintain a warm dry and clean environment.
Computer and Instrumentation Power Supplies: Output leads lifted, load resistors installed and energized.
o Periodic Requirements Quarterly Visual --
Covers, space heat installed. Controlled environment maintained. l o Special Requirements None.
o Comments The control room shall meet the ANSI Level B requirements. l
- f.
O WMC-051 APPENDIX A REV. 1
.02/20/85 A-5
!- TURBINE - GENERATOR SYSTEM i.
o General Requirements Maintain in accordance with. vendor warranty requirements of Westinghouse
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L Turbine Generator Preservation Manual and the Supply System Letter G03-85-030.
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k WMC-051 APPENDIX A REY.1 02/20/85 A-6
a TANKS ~
f, o General Requirements All openings: Secure with covers, caps, plugs, tape, etc.
Stainless Steel: None Carbon steel inside TB, RAB-FHB-RB: See Appendix B.
Unlined carbon steel yard area: Treat with VPI.
Unprotected machined surfaces: Treat with an approved Corroslon Preventative Compound (CPC).
o Inspection Requirements Stainless steel: None Carbon steel inside building: Quarterly Visual as part of corro-sion monitoring program per Appendix B.
Carbon . steel yard area: Annual visual for deleterious internal and external condition.
o Special Requirements Con'densate Demineralizer Rubber Lined Tanks Continue to maintain dry storage. Sample tanks shall be inspected annually for potential deterioration of lining. See E3-JEW-84-086.
Outside Emergency Diesel Fuel Oil Storage Tanks Maintain tank internal to dry condition and treat with VPI as required. Cover all vents and openings to maintain weather tight
. conditions.
o Comments None.
WMC-051 APPENDIX A REV. 1 02/20/85 A-7
PIPING -
^
7.
o- General Requirements
.i.
All piping openings: Maintain closuty with caps, plugs, tape, etc.
o Periodic Requirements Quarterly Visual as a part of the corrosion monitoring program see
- Appendix B.
o Special Requirements None o Comments-None b
b WMC-051
. APPENDIX A REY.-1 02/20/85 A-8
HEAT-EXCHANGERS o General Requirements 7
All openings: Secured with caps, plugs, tape, etc.
Carbon Steel: Treat with VPI or protect with Nitrogen cover gas, o Periodic Requirements Quarterly Visual --
Housekeeping: General cleanliness, plugs and caps installed.
Cover gas pressure (where appropriate), heaters operative.
Identify any deleterious corrosion and coating condition..
Annually --
Treat carbon steel Hxs with VPI, if not protected by Nitrogen cover gas.
o Special Requirements Steam Generators: . Maintain Nitrogen cover gas positive pressure on -primary and secondary sides.
- Ccndenser: Maintain dry condition.
{.' Dry _ CT Hx's: Treat with VPI. Seal tube internals to preclude venting. Store in (ANSI) Level C conditions.
o Comments Condition of condenser tubes (tube side) to be periodically assessed as a part of the corrosion monitoring program.
Condenser water box manway hatches to be screened and left open for natural air circulation.
h WMC-051 APPENDIX.A REY. 1
. 02/20/85 A-9
p-SW2TCHGEAR, MOTOR CONTROL CENTERS AND SYSTEM CONTROL PANELS
,. o. General Requirements o' Periodic Requirements Quarterly Visual --
' Housekeeping: General cleanliness, covers installed, heaters operative.
Identify any deleterious corrosion and coating condition. ]
Annual Visual: Internal inspection of subassemblies for evidence of deleterious conditions.
o Special Requirements None.
o Comments
-Shrouding not required of components installed in switchgear rooms provided ANSI Level B requirements are fulfilled. l C
- i. WMC-051 APPENDIX A REY. 1 02/20/85 A-10
OIL FILLED TRANSFORMERS o General Requirements o Periodic Requirements Quarterly Visual --
t Housekeeping: General cleanliness.
General condition: Proper oil level, no leaks. Heaters energized.
Annual: Analysis of oil samples to determine internal condition.
o Special Requirements Unit Auxiliary - Maintain N2 cover gas. Check gas cover period-ically (as determined by established leak off rate).
o Comments None, f
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t WMC-051 APPENDIX A REV. 1 02/20/85 A-ll ,
-DRY TRANSFORMERS
- j. o . General - Requirements Refer to equipment specific maintenance instruction for heat and covering requirements.
o o Periodic Requirements Quarterly Visual --
Housekeeping: General cleanliness, covers installed space heat energized.
I o, Special . Requirements None.
f o comments
'None.
L A
WMC-051 APPENDIX A REV. 1 02/20/85 A-12
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)
MOTORS 4
j7 o General Requirements' Greased bearings: Initially lubricated, excess grease removed.
.011. filled reservoirs / systems: Serviced with VPI.
Unpainted external machined surfaces: Protect with approved CPC, o Periodic Requirements Quarterly Visual --
Housekeeping: General cleanliness, protective shrouds installed where applicable.
Heat: Operative Oil reservoirs:~ Proper level, no leaks M3chined surfaces: Condition of CPC Identify any. deleterious corrosion and coating condition.
Semi ' Annually --
, Megger test: AC motors > 100 HP )
1 Annually --
0il ' Reservoirs: Re-spike with VPI per PPM 10.100.19 Megger test: AC motors > 1 HP Salety-Related E 10 HP and < 100 HP o Special Requirements
- Large vertical motors: May be hanged or blocked .to unload thrust bearing and delete rotation requirements.
o Commen'ts None.
(..
WMC-051 APPENDIX A REV. 1 02/20/85 A-13
CRANES AND HOIST o General Requirements Operating cranesi The RB Polar and the site construction cranes-will be maintained and operated in a functional maintenance status per appropriate instructions.
All other cranes and hoists: l.
Gear cases:' Spike with VPI.
All greased bearings: Initially greased, excess grease removed Pinions, blocks and cables: Initially lubricate per vendors instructions.
Unpainted exposed machined surfaces: Protected with CPC o Periodic Requirements ,
-Inoperative Cranes and hoists
' Quarterly Visual --
Housekeeping: General cleanliness and condition Identify any deleterious corrosion and coating condition.
Annual --
Oil gearboxes: Respike with VPI.
o Special Requirements None.
o Comments
-None.
m, . WMC-051 APPENDIX A REV. 1 02/20/85- A-14
HVAC CHILLER,S,.
o General Requirements Cover gas: Maintain Nitrogen cover gas on refrigerant and water side of chiller.
o' ~ Periodic Requirements ,
. Quarterly Visual --
Housekeeping: General cleanliness, shroud in place, heaters
. operative.
Cover gas: Maintain positive pressure o Special Requirements None.
o Comments None.
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T.
WMC-051
-APPENDIX A REV. 1 02/20/85 A-15
AIR CONDITIONERS, CLEANUP UNITS, UNIT ~ HEATERS,~ UNIT COOLER ,
I o ' General Requirements Greased bearings: Initially lubricated, excess grease removed.
Unpainted machined surfaces: Protect with approved CPC.
- o. Periodic _ Requirements Quarterly --
Housekeeping: General cleanliness, protective covers installed.
Identify any deleterious corrosion and coating condition. I
- o. Special Requirements None..
o Comments None.
d
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WMC-051 APPENDIX A REY. 1 02/20/85 A-16
AUXILIARY BOILER 1o . General Requirements 7
Boiler internals:. Treat with VPI and close all external openings.-
o : Periodic Requirements
~ Annual --
Boiler internals: Retreat with VPI as required.
- o. ~ Special Requirements None.
o Comments None.
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i WMC-051 4 ' APPENDIX A-REV. 1 02/20/85- A-17
EMERGENCY DIESEL ENGINE
. 'o General Requirements Engine internals: Maintain preservation per Colt 0 and M Manual and Colt Industries Letter EBI-53-84-08.
External openings: Secure with covers, caps, plugs, tape etc.
Protective cover: Maintain cover installed during construction phase o- Periodic Reg'uirements See Colt instructions.
- o. ' Special Requirements None.
o -Comments
~ Represervation Requirements: Per Colt technical direction above.
l j-
! WMC-051
- - APPENDIX A REV. 1 02/20/85 A-18
r EMERGENCY DIESEL ENGINE DRIVEN ALTERNATOR
, o General Requirements Protective Covers: Shroud loosely to minimize contamination and aid in maintaining space heat.
' Space Heaters: Energize internal space heaters
. Unpainted Exposed Machined Surfaces: Protected with CPC o Periodic Requirements Quarterly Visual --
Housekeeping: General cleanliness protective covers installed Space Heaters: Operative Machines Surfaces: Condition of CPC Identify any deleterious corrosion and coating condition.
Sem. Annually 'Megger test: Alternator o Special Requirements None o Comments Do not rotate, alternator is coupled to diesel and crankshaft must not be rotated.
-s WMC-051 APPENDIX A REY. 1 02/20/85 A-19
CEDM PRESSURE HOUSINGS
- c. _ o General - Requirements Package and store as restated in SCEEB-84-04 o Periodic Requirements Quarterly Visual
. Housekeeping: General cleanliness condition of barrier wrap..
.Dessicant- Check condition of humidity indicator, replace desic-cant if required.
o ' Special Requirements None. ,
o ' Comments Stored in ANSI Level B Warehouse.
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l WMC-051 APPENDIX A REY. 1
-02/20/85 A-20
- d - * , ,9 - - , - v -- -
ELECTRICAL PENETRATIONS ASSEMBLIES l~
.o . General Requirements Cover. and. maintain space heat on electrical penetration and termi-nation box.
Maintain purge on penetration assembly.
o Periodic Requirements
. Quarterly Visual -
Housekeeping: General cleenliness Identify any deleterious corrosion and coating condition. 'l Cover: Installed Space Heat: Maintained Purge Pressure: Positive o Special Requirements None.
o Comments None.
[ ' WMC-051 APPENDIX A REV. 1 02/20/85- A-21
, :n p-
' GENERATOR LOAD BREAKER SWITCHES j..- o General Requirements biaintain internal space heat.
Maintain' Nitrogen cover gas on the air system.
- o Periodic Requirements Quarterly Visual:
Space Heat: . Operating Cover Gas: Positive. ,
o' Special Requirements None.
o' ' Comments None.
b'
.c .
i i.
-WMC-051 APPENDIX A REY. 1 A-22 02/20/85.
i
l
- TERRY & TDI: STEAM TURBINE
[ o General Requirement
' Lubrication System: - Spike with VPI Operate Lube system to distribute
.VPI throughout ~ system on the TDI system.
Unpainted Exposed Machined Surfaces: Protect with CPC.
1 Turbine and Valve Gear Internals: Treat with VPI.
Protective: Cover: Shroud Terry Turbine to minimize contamination,
- o. Periodic Requirements L Quarterly. Visual --
Housekeeping: General cleanliness, protective covers in place.
Identify any deleterious corrosion and coating condition. l .
'Eiternal Machines Su'rfaces: Condition of CPC.
Annual: For TDI . units, spike lube system with VPI and operate system to distribute throughout system.
Retreat internals with VPI.
,.. -o Special Requirements None.-
o Comments Do not rotate turbine shafts until performing a visual inspection of shaft bearing condition and assurance of positive lubrication. See O&M Manual for Terry units.
4 WMC-051 APPENDIX A REV. 1- ,
02/20/85 A-23
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l l
CONSTRUCTION CONCRETE BATCH PLANT !
.l j- o General Requirements Perform initial requirements per PSP-MM-11-6 and 204-0204-03,- 04, 05.
Lubrication Gear Boxes: Spike lube oil with an approved YPI 10 percent by volume. Mix thoroughly in system.
o Periodic Requirements Quarterly Visual: Extend monthly requirements currently shown in 204-0204 - Series to a quarterly basis.
~
Quarterly - Operate as required to exercise equipment.- l_
Annual: Retreat lube system with an approved VPI per above.
o Special Requirements None o Comments None l'
9 WMC-051 APPENDIX A REV. 1 02/20/85 A-24
-CONSTRUCTION EQUIPMENT AND VEHICLES
- o. General ~ Requirements Maintain per existing maintenance instructions with caler. der inspection frequencies reduced to match reduced equipment usage.
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WMC-051 APPENDIX A REY. 1 02/20/85- A-25
. CONSTRUCTION REAL PROPERTY
- j. o _ General Requirements Buildings Supply System Management shall id.ntify buildings to be kept in-service, taken out-of-service and those to be removed from the site.
(A) Buildings kept in-service: General up keep of buildings consisting of roofing, painting, floor and wall covering, electrical plumbing, mechanical /HVAC and shall be as needed and directed by Construction Manager or designee.
(B) Buildings that are designated to be taken ~out-of-service shall be laid up by setting heat at 50*F and securing win-dows and door.
Security shall check weekly for locked windows / doors, heat-ing 'and vandalizing. A quarterly check shall be made for interior condition. The interior condition shall be re-ported to Construction Manager for evaluation and action.
(C) Buildings to be removed from site:
-o Contact. Corporate Insurance Manager for insurance e coverage until removed from site under the following conditions:
- 1) Check and remove the accumulation of combustable material (debris).
- 2) Drain water including HW heater, traps, tanks and fire prote . ion.
-3) Throw disconnect / service to unit.
- 4) Secure building by locking windows and doors.
Security shall check monthly for general condition and report to Construction Manager.
WMC-051 APPENDIX A REY. 1 02/20/85 A-26
~ CONSTRUCTION SUPPORT OPERATIONAL SYSTEMS
,.. Potable Water System L Compressed Air System Gas System Environmental Treatment System Maintain systems per existing maintenance programs which meet l EFSEC. requirements.
Roads, Grounds and Fencing Perform condition maintenance only, repair only as required for current use.
o Inspection Requirements
~
None. l o Exceptions None.
o Comments None.
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t WMC-051 APPENDIX A REY. 1 02/20/85 A-27 E - . .. . ..
i iT y
e WNP-3 STRUCTURAL MATERIAL CORROSION MONITORING PROGRAM PREPARED BY: e fq q!m[
R. B. DAVIS L L MATERIALS & CORROSION ENGINEER l- APPROYAL:
~"
/ ~
'uh
/ J//2/f5
/
D. W. PORTER MANAGER SYSTEMS ENGINEERING SUPPORT C&du., + 3h /j' D. I. HULBERT WNP-3 ENGINEERING ASSISTANT PROGRAM DIRECTOR
-# 'U.
/
CONCURRANCE: .
H. WORCHEL EBASCO PROJECT ENGINEERING WMC-051 APPENDIX B'Rev. 1 !
02/20/85
WNP-3 STRUCTURAL MATERIAL CORROSION MONITORING PROGRAM
-TABLE OF CONTENTS Page 2
Introduction 2
Definitions Applicable Standards 3 Objective 3 Limitations 4 Corrosion Testing 4 Test Sites and Racks 6 Test Coupons 11 Preparation of Test Coupons Identification 11 Cleaning 11 Pre-Test Characterization 11
(
Installation 11 Corrosion Coupon Evaluations 12 Preservation of Coupons 12 WNP-3 Photo Log 12 Records 12 Report 13 Tables:
Table I General Test Matrix 8 Table II Suplemental Test Coupon Quantities and Location 9 Table III Locations of Building Test Racks 10 Figures:
Figure 1 Field Test Rack 14 Figure 2 Dew Point Corrosion Test Rack 15 Figure 3 Building Test Rack 16 Figure 4 Weight Loss Coupon Design 17 WMC-051 APPENDIX B Rev.1 02/20/85 .
WNP-3 STRUCTURAL MATERZAL CCRROSION MONITORING PROGRAM INTRODUCTION The WNP-3 Structural Material Corrosion Monitoring Program is an integral part of the WNP-3 Preservation of Assets Program. The objective of the cor-rosion monitoring is to provide both qualitative and quantitative data on the structural material changes due to the environment through the period of con-struction delay. Coupons of actual plant materials 'are observed and tested )
- to obtain corrosion rate data. It trust be emphasized that this program is '
not a licensing requirement but an " insurance policy" tc assure corrosion related questions do not delay the restart of construction. j I i The corrosion monitoring program includes atmospheric corrosion test racks in the field and in the buildings. Coupons are monitored for uniform galvanic and _ pitting types of corrosion. Corrosion coupon materials are representa-
- tive of actual plant components (i.e., NSSS vessel and piping, carbon steel l piping, steam piping, anchor bolting, equipment bolts, reinforcement bar, tanks, pumps and stiff clamps).
The corrosion monitoring plan will not be concerned with the insignificant appearance of rust stains on stainless steel or even light rusting of unpro-tected carbon steel. These are perfectly harmless corrosion phenomena that will occur even in operating plants. The program simply watches for evidence of corrosion mechanisms that might adversely affect the integrity of the material . or the component in which it is used. Concern for asthctics is an
,- unaffordable luxury in a large plant construction delay such as WNP-3.
DEFINITIONS Atmospheric corrosion - Electrochemical corrosion reactions occurring on metallic surfaces in the presence of atmospheric moi sture, usually not occurring at relative humidities below 50%.
Corrosion - The chemical or electrochemical reaction between a material,.
usually a metal and its environment that produces a deterioration of the material and its properties.
Galvanic Corrosion - Accelerated corrosion of a metal because of an electri-cal contact with a more noble metal or non-metallic conductor in a corrosive electrolyte. -
Galvanic Couple - A pair of dissimilar conductors, commonly metal s, in electrical contact. (See galvanic corrosion.)
Inhibitor -~ A chemical substance or combination of substances that, when present in the proper concentration in the environment prevents or reduces corrosion.
WMC-051 APPENDIX B Rev. 1 02/20/85 !
'WNP-3 STRUCTURAL MATERfAL CORROSION MONITORING PROGRAM f ' Pitting - Corresion of a metal- surface,- confined to a point or small area, that takes the-for1n of cavities.
Responsible Engineer - A corrosion ' engineer from the Supply System Materials and Welding department who is. responsible for all aspects of the corrosion monitoring program.
Rust - A corrosion product consisting primarily of hydrated iron oxide. (A term properly applied only to ferrous alloys.)
Vapor Corrosion Inhibitor (VCI) - See vapor phase inhibitor.
Vapor Phase Inhibitor (VPI) - Common term for corrosion inhibitor that uses a
-volatile. organic compound for transport to' the metal surface in a closed
-atmosphere..
Uniform Corrosion - Corrosion which occurs uniformly over the metal surface, not localized.
. APPLICABLE STANDARDS
- following standards are applicable -to the corrosion testing of WNP-3 uctural materials: :
- 1) ASTM. G1, Recommended Practice for_ Preparing, Cleaning and Evaluation of Corrosion Test Specimens.
- 2) ASTM G4, Recommended Practice for Conducting Plant Corrosion Tests.
- 3) ASTM G33, Recommended Practice for Recording Data from Atmospheric Cor-zrosion Tests of Metallic / Coated Steel Specimens.
- 4) ASTM G46, Recommended Practice for Examination and Evaluation of Pitting '
Corrosion.
- 5) ASTM G50, Conducting Atmospheric Corrosion Tests on Materials.
-0BJECTIVE The corrosiori monitoring objective is to obtain data in support of continued construction after the construction delay. Data will be obtained on the atmospheric corrosion degradation to the most corrosion sensitive plant mate-rials used'in construction. The data is used to:
- 1) Quantify degradation to verify that structural integrity of construction -
materials has not been compromised.
- 2) Provide assurance that construction activities can resume with existing
..steck_ material .
WMC-051 l APPENDIX B Rev. 1 . l 02/20/85. i
L WNP-3 STRUCTURAL MATERIAL CORROSION MONITORING PROGRAM C 3) Provide early notification of degrading. conditions such that corrective actions can be taken.
-4) Provide a quantitative basis for the evaluation as to the acceptability of the plant to restart construction activities.
LIMITATIONS The extent and depth of the corrosion' monitoring program is limited by the following constraints:
o Relative short time period to establish corrosion rates.
o Relative small total metal loss.
Within these constraints the corrosion monitoring program is designed to use worst. case ~ corrosion rates to provide an upper bound data base, and at the same time to monitor a sufficiently limited number of actual plant and field corrosion conditions to correlate .with the data base. Worst case corrosion rates are obtained using the most corrosion sensitive materials positioned at the most environmentally severe locations.
CORROSION TESTING' Based on the general atmospheric conditions, published literature and the materials selected to construct the plant, the carbon steels rank the highest
(.. in expected corrosion rates. Plain carbon steel atmospheric corrosion rates are expected 'to range between 0.6 and 1.3 mpy .where the relative average humidity is greater than 60".. High strength low alloy carbon steels are expected to corrode at a rate of 0.3 mpy. Atmospheric corrosion rates for stainless steel, aluminum, copper and zinc coated meterials are approximately 0.011, 0.03, 0.023, 0.08 mils per year respectively. Atmospheric corrosion testing of the carbon steels will provide the highest corrosion rates.
Carbon steel uniform corrosion rate data are determined for site specific conditions using weight loss coupons. ~ Coupons fabricated from plant materi-als are positioned on racks placed within the construction site and inside selected buildings. Corrosion coupons are removed periodically during the construction delay for analysis and corrosion rate determination. Standby coupons are also provided should the delay be extended. A generalized test matrix listing the coupon materials and locations is provided in Table I.
In addition to the uniform type of corrosion caused by rain and humidity, several special conditions of possible enhanced or accelerated corrosion have been identified. These are as fellows:
- 1) Dew point moisture corrosion on internal surfaces of closed or capped piping and tanks.
WMC-051 APPENDIX B Rev.1 02/20/85 -.
i t'NP-3 STRUCTURAL MATERIAL CORROSION MON 1TORING PROGRAM
- 2) Accelerated corrosion due to galvanic action at dissimilar metal welds.
- 3) Exposed formed reinforcement bar corrosion.
Corrosion' testing to determine the rate of dew point moisture attack is accomplished with weight loss coupons. Coupons are attached to a rack which is then placed inside a capped spool piece. The carbon steel coupons of two One coupon alloy compositions, similar to steam and water piping are used.
of each alloy set is planned for removal every 12 months.
Testing for accelerated corrosion rates caused by the galvanic couple between two dissimilar alloys is accomplished with weight loss type coupons. Coupons are made from carbon steel to stainless steel weld samples. The surfaces are machined to give a uniform surface area. These couponsAfter are photographed, completion of weighed and returned to the rack for long term exposure.
the test period, these coupons are examined for the type and depth of attack.
Reinforcement bar corrosion is a difficult condition to model and it is fur-ther complicated. by the fact that the acceptance criteria is not based on a minimum wall thickness. ASTM acceptance standards for this product form are based on tensile and bend tests. To avoid problems with non-standard quali-tative data, reinforcement bar corrosion evaluation uses both corrosion rate determination and actual acceptance testing of exposed rebar. Weight loss coupons of a similar alloy composition are exposed and tested along with the other coupons to obtain corrosion rates. Specimens of small diameter rein-These :pecimens are to L forcement bar are exposed through the lay-up period.
be tensile and bend tested prior to restart. Small diameter rebar is used to produce worst case data 'due to the surface area to mass ratio.
Corrosion coupons were also placed in the primary side of both steam genera-tors. The coupons were made from similar high strength low alloy plate as the vessel. Two coupons each were attached to the temporary seals on the inlet nozzles.
VAPOR PHASE INHIBITOR EFFECTIVENESS COUPONS Supplemental to the initial corrosion monitoring program, several weight loss coupons were prepared to determine the effectiveness of vapor phase innibi-tors. This was deemed important due to the heavy reliance of VPI's in the preservation of assets program.
Four coupons were prepared to answer two questions:
- 1) Does the VPI work, and
- 2) Does the VPI work on previously rusted surfaces.
WMC-051 APPENDIX B Rev. 1
'02/20/85 L......... .-
V .
k WNP-3.STRUCTURALMATERIAL'CORROSIONMONITORINGPRCsfAM
'^ Two of the weight loss coupons were : removed from the field test racks after three ~(3) months exposure and - the other two were prepared with fresh sur-faces. All coupons were weighed and dimensionally(The measured. .One of each VPI treatment of the n coupon was placed in the two YPI protected tanks.
fire protection' tank was not completed until several weeks after the coupons were inplace.)
PHOTO DOCUMENTATION In conjunction with the actual coupon testing, several areas in the plant have been selected for visual examination . and photographic -documentation.
These areas. will be examined and the conditions documented to support the overall corrosion monitoring effort. The items to be examined includes, but
-is not limited to:
Embed plates Stiff clamps
' Water storage tanks.
. Floor. drain tanks-Diesel generator room Turbine materials Piping Reinforcement bar Dry l cooling heat exchangers and others T The photographs are maintained in a photo ' log, complete with descriptions, type of film and date taken.
TEST RACK LOCATIONS
-The test racks are classified as either field racks, building racks or sup-plemental locations - for coupon holders. The corrosion coupons are attached to the racks which are secured to a permanent wall attachment (as in the case of most building racks) or are temporarily positioned in plant equipment and tagged on the outside. Each field rack contains about 40 corrosion coupons.
The two field test racks are positioned within the construction perimeter.
The-locations are:
o Adjacent to the WNP-3 cooling tower on the southeast side.
o Adjacent to the WNP-5 turbine building, south side at ground level.
One additional field test rack is positioned in a diesel exhaust weather-tight spool piece number '7AG49-020 located on' the south side of the WNP-3 refueling water storage tank.
Building test racks' and supplemental coupon holders 'are positioned in the turbine, reactor ' auxiliary and reactor buildings. Each building test-rack contains..six corrosion coupons.
WMC-051 i APPENDIX B Rev. 1 02/20/85 -
t.
WNP-3 STRUCTURAL MATER 8AL CORROSION MON 1TORZNG PROGRAM
' Tables II and III more completely describe the locations of the racks and holders.
TEST RACK DESCRIPTION_
Field test racks are constructed of 1-1/4" x 1-1/4" angle iron and 1" x 1/4" bar stock. A rectangular frame and upright supports are welded together as shown in Figure 1. As most of the published data on atmospheric corrosion is based n .a 30 degree angle with the horizontal, this angle is used on the field test racks. The angle iron upright supports are trimmed to a sharpened point and bar stock welded horizontal to facilitate placement of the rack in the ground. The rack is designed to keep the lowest specimens at least 30 inches above the ground clear of weeds, brush and debris. One field test rack is modified with a hanger to suspend 12 inch lengths of reinforcement bar. Along with the field test racks, two coupon racks are placed inside a Building capped spool piece on a length of angle iron as shown in Figure 2.
test racks are constructed of a single piece of 1-1/4" x 1-1/4" x 30" angle-
~ iron or 1-1/4" bar stock. Holes for mounting bolts, clamps or straps are used to secure the rack to the building wall by whichever method proves easiest. Building test rack design is shown in Figure 3. In addition to the field and building test racks, four pipe plugs are modified with a nylon post '
to support a corrosion coupon. Each rack is coated with a bright colored paint for easy identification. The test racks are fitted with a " Caution--Do Not Disturb" warning sign with the appropriate identifiers and emergency telephone numbers.
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WMC-051 APPENDIX B Rev. 1 02/20/85 l
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ENP-3 STRUCTURAL MATERIAL CORROS80N MONITORING PROGRAM
[I' TABLE II
-SUPPLEMENTAL TEST COUPON QUANTITIES AND LOCATION l l NUMBER OF TEST l LOCATION l COUPONS I I l l REINFORCEMENT BAR ACCEPTABILITY l l TEST IField Test Rack South Side 1 10 Series 1 IWNP-5 Turbine Building l l 4 Series 2 l '
l l I I l l YAPOR PHASE EFFECTIVENESS STUDY I 1 1335' Level RAB, CCW HXB, CCW l 2 Pre-corroded A-36 ISide l 1 i Fresh 1442'- Level RAB, Aux. Fire Pro- l 2 A-36 ltection Tank on South-Roof l 4 l l '
l 1 l l
. STEAM GENERATOR LAY UP l l EFFECTIVENESS 1
l
l Top Inlet Nozzle on Both Sceam 1 2 SG(A) A-533
- - l Generators Attached to Nozz'e l l Purge Da7 l l l 2 SG(B) A-533 I I i'
+
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l
! WMC-051 APPENDIX B Rev. 1 02/20/85 i
... __ . ~ . . . . . _ . _ ..-.. ____ .________.._.__ . _ . _ _ __._. . _ ____.., _ ._..____ ._
WNP-3 STRUCTURAL MATERIAL CORROSION MONITORING PROGRAM
- /" TABLE III LOCATIONSOFBUILDINGTESTNACKS i BUILDING LOCATION
-NUMBER LOCATION 1)- 335' level of the reactor auxiliary building in the high pressure safety injection pump no. 2 room, attached to a unistrut on the
! north wall.
- 2) 367' level of the reactor auxiliary building in an open area on the southeast corner, attached to piping on the south wall.
- 3) 481' level of the reactor building on the steam generator shield wall,1 attached 'to a piece of unistrut at 130* azimuth.
- 4) 390' level of the turbine building on the south wall in the con-densate pump pit, attached to a piece of unistrut.
- 5) 41 0 ' ' level reactor building on steam generator shield wall attached to unistrut at 180* azimuth.
. ^1'
- 6) - 417' level reactor auxiliary building, north side air cleanup unit CU3.
[ 7) 390' level north tank farm, plant reuse water middle tank.on level f
indicator.
- 8) 455' level turbine building, low pressure turbine C generator end.
- 9) 455' level turbine building, low pressure turbine A, high pressure turbine end.
WMC-051 APPENDIX B Rev. 1 02/20/85 - _ - - - - - _ . -. ...- - _
WNP-3 STRUCTURAL MATERIAL CORROSION MONITORING PROGRAM
^
TEST COUPONS Standard size test coupons are selected for the corrosion study. The coupons measure 3" x 1" and vary between 1/8 and 1/4 inch thickness. The size is selected to optimize the accuracy of the data, ease of data collection and coupon cost. A 1/4-inch diameter hole drilled in one end is used to attach the coupon to the rack, Figure 4. Coupons for weight loss and corrosion rate measurements are ground to 120 grit surface finish. All burrs are removed and edges lightly ground.
Coupons for the supplemental tests include ten 12-inch length of 3/8" rein-forcement bar. The number of .ccupons and general locations are given in Table II.
l The test matrix uses five different low alloy and carbon steels selected to I represent structural steel and piping, NSSS vessels, rebar and nuts, anchor ;
bolting and structural bol ting. The alloys are A36, A533 Gr. B Class 2, l
~1045,1141 and 4140. Table I lists each alloy, quantity of coupons and gen- i eral- location. The corrosion monitoring e~ffort uses 126 standard size weight I loss coupons.
Identification The coupons are -identified according to the test set and removal interval by
_. numbers stamped on one face. The first one or two digits correspond to the
'(~ test set as shown in Table III. The last digit corresponds to the coupon removal period. Stamping is considered appropriate' and is expected to last through the duration of the five year monitoring period.
Cleaning Dirt, oil and grease are removed from the specimens prior to weighing. As described in ASTM G1, acetone ultrasonic bath and alcohol rinse removes most of the surface contaminants, yet does not affect the corrosion rates.
PRE-TEST CHARACTERIZATION The coupons are weighed and the dimensions measured prior to installation on the test racks. Weight loss coupons are weighed to the nearest .0001 g.
Each coupon is measured in all three directions to the nearest .0001 inch.
INSTALLATION Coupons are mounted to the test racks with stainless steel #10 machine screws and supported by the non-metallic insulators. The insulators prevent elec-trical contact with the test rack frame. Coupons are shop mounted prior to placement of the racks in the field or building. A color photographic WMC-051 APPENDIX B Rev. 1 02/20/85 l
l - . .
WNP-3 STRUCTURAL MATERIAL CORROSION MONITORING PROGRAM documentation of the as-mounted coupon conditions are made as tne test racks are placed at the test locations. Color standards are used to ensure all
, photographs are developed uniformly to enable visual comparisons between l sampling intervals.
CORROSION COUPON EVALUATIONS Corrosion coupons are removed periodically for evaluation and corrosion rate determination. The coupons are weighed, washed and reweighed in accordance l with recommended practice ASTM Gl. Corrosion rates are calculated from the pre-test to final weight loss data. In addition, the coupons are examined for evidence of accelerated attack. During the first six months, several coupons are removed for early life data and to confirm predicted rates. Cou-pons are scheduled for removal after one, two and three years of exposure.
Standby coupons a.re also provided for unexpected circumstances.
- Coupons are reweighed to the same precision that was originally usea. Sam-i ples are examined for evidence of pitting and galvanic corrosion. Areas of maximum attack are measured for pit depth using a gauge and/or sectioned for metallographic examination.
PRESERVATION OF COUPONS All retrieved coupons are preserved for the test duration in a manner that enables reconstruction of the test data. Samples shall be retained at' the
' (. Plant Support Facility Corrosion Laboratory.
WNP-3 PHOTO LOG The corrosion coupons are measuring corrosion rates under either worst case environment or actual building environments using surfaces prepared to pro-vide the most corrosion sensitive exposure. Actual plant equipment corrosion rates are related to the corrosion coupons by alloy composition and the photo log.
The WNP-3 Photo log is ' the means of documenting the corrosion related change to actual plant equipment. The plant is surveyed on a quarterly basis for corroding conditions and degrading equipment. These conditions and equipment are recorded, photographed and cataloged for comparison with the baseline conditions established at the beginning of the lay-up period. Two copies of the photo log are maintained; one at the construction . site, and the other by the Responsible Engineer.
RECORDS A log book containing all activities with regard to materials, procedures, preweights, postweights, data evaluation and reporting is maintained by the Responsible Engineer.
WMC-051 APPEl! DIX B Rev. 1 02/20/85 _ - _ _ _ _ _
i WNP-3 STRUCTURAL MATERIAL CORROSION MONITORING PROGRAM
( REPORT Quarterly inspection reports presenting the results of the inspections are prepared by the Responsible Corrosion Engineer. Quarterly reports will include a discussion'of any conditions which require corrective action. The final report is prepared by the Responsible Engineer and includes detailed descriptions of the exposed coupons, pertinent data on exposure conditions, surface conditions and results of the evaluations. The coupon data includes dimensions, material test reports, surface preparation and post-test cleaning methods. Also provided are the details of the exposure conditions describing locations, dates, length of exposure and general atmospheric conditions.
Although the corrosion monitoring program is an owner resonsibility, copies of all reports and correspondance shall be submitted to Ebasco. The final report will be submitted to Ebasco for their use and participation in evalu-ating the plant condition at the resumption of constructon and in support of the licensing effort.
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l WMC-051 APPENDIX B Rev. 1 02/20/85 .- -. - . - . _ . , . _ . _ - . . . , . _ . - - .. ,.- -. - . , _ . , . - . - ,
. ... a . , _ . . . . . - -.
N' HYGR0 THERM 0 GRAPH PLANT MONITORING APPENDIX C TO WMC-051 Prepared by: / OC d / PJ '
'H.L.)arton,W -3 Project Engineering Approved by: A N k' 3 V. R. Harris, Acting Assistant Plant Manager W 3 8 s~
R. A. Noen, Manager, Materials and Welding hW4a < tu l l- dl?V 2/u,*/l-Worchel, Ebasco Project Engineer
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C'ef ***, e. n /-- 3h z./:"
D. I. Hulbert, WNP-3 Engineering Assistant Program Director
Attachment:
Tepperature-Humidity Charts WMC-051 Appendix C Rev. 1 03/06/85
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Introduction I I
The temperature -' humidity monitoring requirements of this appendix are '
- f. an integral part of the overall Preservation of Assets Preventative i Maintenance requirements. The record of actual temperature - humidity l conditions encountered aid in providing assurance that the objectives of the Preservation of Assets Program are met.
The primary use of the temperature - humidity records is to indicate the '
environment the equipment, systems, components and structures have experienced during the preservation period. The monitoring program is also utilized to provide an early warning of less than acceptable condi-tions which might lead to equipment damage. The records are also avail-able as evidence of the environment during .the preservation period which may be used in part to justify an extended interval in calendar based equipment overhaul periods. The results of the monitoring program will
, be published periodically in graphic presentation together with analy-
- tical interpretation.
Recorder Locations Indicators and recorders are located throughout the plant island and warehouse. Earlier in the program, some recorders in the turbine building and the reactor auxiliary building were relocated periodically to a different floor in order to characterize the environment all.
through the buildings with a _ limited number of recorders. Additional
. recorders have been procured to permit continuous monitoring of all l levels of the RAB, RB and TB. Locations selected provide a record of
(-.,
- typical environmental conditions encountered by the equipment.
i Observations i
- Attached to this appendix are graphs of the temperature-humidity con-ditions observed through the first year of the program. The Control Room exhibits a uniform environment as provided by the thermostatically controlled and filtered temporary heating system. The balance of the RAB/RB reflects. a stable temperature influenced very little by the outside temperature. In all ~ locations, the environment has remained below the dewpoint. The recorded temperature stability rules out any
! concern that structural or installed components have reached dewpoint temperature which might have occurred as a result of a sudden warming trend after a long cold soak.
l A greater environmental variation is observed in the turbine building i due to the incomplete siding and the type of structure. However, dew-1 point conditions have not been observed through 3/85 in the building.
As in the RB/RAB, sensitive components are individually protected by i shrouds and localized heat. Additional protection is provided by the TB i unit heaters which became operational in 1/85.
i l
i WMC-051 Appendix C Rev. 1 l 03/06/85 l
- , - - ~ . _ _ . . - , _ _ _ . - . . , _ _ ___ _ _ . _ . . . . . _ . , _ ~ _ . . . _ . _ __ . _ - , _ - _
L' l
Reports l
\
Updates of.the temperature - humidity graphs are provided as a part of l 1
~ T the monthly review of'the plant preservation's' status. I i
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i WMC-051 I Appendix C Rev.1 03/06/85 e
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WMC-051 APPEMlIX C DATA LOCATION : CONTROL HOON 120 90 - - - - -
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WNP-3 PRESERVATION PROGRAM FOR ELECTRICAL AND ELECTRONIC COMPONENTS APPENDIX D TO kNC-051 PREPARED BY: 8 d 7/t f3 '
H. Barton, WNP-3 Project Engineering APPROVED BY: OIY-- A 3/2s// '
I D. I. Hulbert, P-3 Engineering l P am Ofrector - )
Assistant i ) /o 4-l /_ '
f / k'/.b Vaughn Harris, Acting Assistante Plant Manager l . u ,l. . . e re //. . 0$4/ 3/+iH~~
H. jdorchel, Ebasco Project Engineer i . . . . ,
, (* . . . '
./ ~
J. P. Sluka, Ebasco Project General Manager 5 M . ( ___l- __
?? 85 L. s . Garvin, WNP-31 Project QA Mantjer 3-23-8C"'
A. D. Kohler, WNP-3 Program Director WMC-051 ,
Appendix 0, Rev. 1 03/06/85 l
hs .
p I. '
n WNP-3 Preservation Program for
' Electrical and Electronic Components TABLE OF CONTENTS SECTION PAGE i 1. INTRODUCTION 3
- 2. OBJECTIVE 4
- 3. APPLICA8LE STANDARDS 4
- 4. PROGRAM ,
4
- 5. REFERENCES 6 ATTAC}NENT 1 7 WMC-051 Appendix 0, Rev. 1 03/06/85 k
l WNP-3 Preservation Program for Electrical and Electronic Components -
1.0 INTRODUCTION
The Preservation Program for Electrical and Electronic Components is an integral part of the WNP-3 Preservation of Assets Program. Considera-tion within this program, for these components is based upon the uncer-tainty relative to the length of time assoc.iated with the current Extended Construction Delay - Phase and the effect that time in layup status aiy have on the efficiency of the associated I4C elements. The components under consideration ere those electrical and electronic com-ponents which htve'been installed in the plant and are in a layup status.
The four elements that lead to degradation of electrical and electronic components are: ,
(a) Physical damage, including direct impingement by water, and expo-sure to electrical power surges.
(b) Airborne contaminates such as dust, grit, and corrosive chemicals.
(c) Excessive temperatures, either high or low, and associated thermal stresses.
(d) Excessive humidity which can lead to moisture deposition through.
condensation.
The basic concept adopted is to maintain the components warm, dry and clean consistent with ANSI level B requirements. This coupled with a limited monitoring activity forms the basis of this program.
Normal aging of components from the passage of time cannot be pre-vented. Some normal maintenance components such as "0" ring saals can be expected to harden and become brittle and will require replacement i during the calibration phaso of the startup activities. The conditions I currently existing at WNP-3 are in general less severe than the antici-pated operating environment will be in terms of normal aging.
It is recognized that individual protection of each component is not cost effective. It should also be' noted that this program addresses only the preservation activities required as a minimum and sound ongi-neering, judgement should be employed in the implementation of certified vendors recomendations that go beyond this program.
WMC-051 Appendix 0, Rev. 1 03/06/85 .
u - h
WHP-3 Preservation Program for Electrical and Electronic Components i
2.0 OBJECTIVE The objective of this program is to improve and maintain the environ-mental conditions for the electrical and electronic components during the Extended Construction Delay Phase. In addition to this, the limited monitoring program is intended to provide indication as to the adequacy of such efforts.
The implementation of this program is intended to minimize the adverse effects of the Extended Construction Delay Phase on the electrical and electronic components and provide adequate assurance by way of document- l ation that such components are adequately preserved.
3.0 APPLICABLE STANDARDS The following standards are applicable:
(a) ANSI /ASME hQA-2-1983 Part 2.2, Packaging, Shipping, Receiving Storage, and Handling of Items for Nuclear Power Plants.
(b) IEEE Std 336, Installation, Inspection and Testing Requirements for Instrumentation and Electric Equipment During the Construction of Nuclear Power Generating Stations.
(c) WPPSS Specification 3240-058, Local Instrument Racks, Section 2A, Technical Specification.
4.0 PROGRAM 4.1 Scope of Program The program shall miniaize the effect of a non-operational environment on electrical and electrical components by:
(a) Providing local enclosures and heat to provide an additional measure of protection to equipment located throughout the plant.
(b) Periodically calibrate a representative sample of plant instrumentation to verify the adequacy of plant preservation activities.
WMC-051 Appendix D, Rev. 1 ,
03/06/85 WNP-3 Preservation Program for Electrical and Electronic Components 4.2 Program Requirements 4.2.1 Enclosures ANSI Level B storage shall be provided. To effect this, the primary preservation technique for the electrical and electronic components is to shroud the equipment, cabinet or rack and provide an improved environment inside the shrouds. The requirements are enclosures with a properly located heat source and adequate space between the enclo-sure and the instrument surfaces to provide for air circu-lation and essentially uniform conditions around the in-strument. Periodic inspection is required to assure that these conditions are providing adequate protection. To allow for these inspections and to conduct maintenance of heat ' sources an access must be provided. Rooms which meet the criteria for ANSI level B storage do not require equipment to be individually shrouded and heated.
Special actions shall be taken in the Control Room in l recognition of the high concentration of electrical and electronic equipment located in the room. These actions consist of the following:
(a) Maintaining a positive inflow of filtered heated air.
(b) Protecting sensitive connections by installation of caps, plugs or other dust seals.
(c) Installation of temporary dust seals between the cab-inets and the cable rooms below in the absence of the completed installation.
(d) Other dust and cleanliness controls as appropriate.
4.2.2 Heating Elements To maintain a warm environment inside the shrouds an effi-cient and easily verifiable heat source will be used. The heat sources will be located as low as possible within the l enclosure and distributed in the central area to allow maximum establishment of convection currents.
WM0-051
.kapendix D. Rev. 1 1 __ . _ _ _ _
WNP-3 Preservation Program for Electrical and Electronic Components 4.2.3 Monitoring and Inspection An important aspect of any program is the monitoring of the program's results and the analysis of the data to determine if modifications are necessary to the program to assure continued acceptable results or conditions. The
. instruments used for the monitoring program are shown in Attachment 1 and. were developed using the following criteria: .
(a) The instruments are distributed throughout'the build-ings to provide geographic coverage.
(b) The instruments encompass the major instrument types.
(c) 'The instruments are selected from a cross section of the vendors with preference for major vendors.
(d) The instruments are selected from various plant sys-tems with preference given to those instruments identified as Class 1E.
4.2.4 Air Flow through Conduits During the course of routine inspection activities, con-duit leading into enclosures shall be checked for evidence of outside airflow into the enclosure. Where found, the conduit shall be sealed to prevent undesirable flow.
5.0 REPORTS Copies of all instrumentation calibration data sheets shall be submitted to Ebasco for their evaluation and analysis. The results of the cali-bration progra'm and recommendations for changes shall be included as a part of the monthly plant preservation report to the Supply System.
WMC-051 Appendix D. Rev. 1 03/06/85 L
ATTACHMENT 1 (1 of 3)
PRESERVATION PROGRAM SAMPLE INSTRUMENT LIST Item Instrument Nearest Manufacturer j No. NEL EPN Number Bl.dg. E1. Column & Model I
Rosemount 1 3-CD-PT-2340/A PT-CD-2340A TB 390 TG 2 1151GPTE22MB l Conoflow 2 3-AS-IK-1900 IK-AS-1900 TB 390 TR 3 GT25CD Fisher 3 3-HD-LC-0451/82 LC-HD-045182 TB '423 TK8 M5453 Fisher 4 3-HD-LC-1551/B LC-HD-1551B TB 423 TK 7 2502R-2498 5 3-CD-TE-1870 TE-CD-1870 TB 423 TL Temtex
( 5 Magnetrol 6 3-HD-LS-1151/B LS-HD-11518 TB 423 TE 5 BCS-751 -SIMD40C Rosemount 7 3-ES-PT-1341/A PT-ES-1341 A TB 455 TjoD 1151GP7322MB IK/RCV-4 Fisher 8 3-MS-IK-RCY/4 (XD-RCV4)W TB 455 T4 8 546 TA-PS United Electric 9 3-TA-PS-63/1/LV1 1-LVD TB 455 TH 5 302MD612 Ashcroft 10 3-FS-PI-5151/A PI-FS-5151 A FHi, 362 K3 y 45-127955 Rosemount 11 3-CC-FT-7020/81S FT-CC-7020815 FHB 335 H3 '1153085 Ashcroft 12 3-CC-PI-7021/015 PI-CC-7020B15 FHB 335 H3 1279 Rosemount 13 3-RC-FT-156 FT-RC-0156 RB 365 CR-13 1153HA4 Rosemount 14 3-FW-LT-0211 LT-FW-0211 AS RB 395 CR-10 1153085 15 3-WM-LIT-762 LIT-762 RAB 335 P2 Rosemount Rosemount 16 3-CH-PIT-206 PIT-206 RAB 335 P9 1153 WMC-051 Appendix D, Rev. 1 03/06/b5 !
k ATTACHMENT 1 (2 of 3) f PRESERVATION PROGRAM SAMPLE INSTRUMENT LIST Item Instrument Nearest Manufacturer No. MEL EPN Number Bldg. E1. Column & Model i
Rosemount 17 3-CW-PDIT-302 POIT-302 RAB 335 H9 11510P Mercoid 18 3-WM-LS-6432/A LS-WM-6432A RAB 335 B1 DSW7233 Ashcroft 19 S-WM-PI-6433/A PI-WM-6433A RAB 335 B1 45-12795SW/1106S Taylor 20 3-GM-TT-3 TT-3 RAB 362 B10 X211TG02 Moore 21 3-CH-FT-281 FT-281 RAB 362 L4 yy 13AMS2L Moore l 22 3-CH-FIC-292 FIC-292 RAB 362 L4 yy 5205M Mercoid 23 3-WS-PS-5/01 PS-5.01 RAB 417 P7 057241 24 3-WS-PI-5/01 PI-5.01 RAB 41 7 P7 Ashcroft Foxboro 25 3-WS-FT-0014 FT-14 RAB 442 P4 130M Rosemount 26 3-HV-PDT-5032/A PDT-HV-5032 RAB 425 C4 1153083 Magnetrol 27 3-FF-LS-7203 LS-FF-7203 RAB 335 F9 2 FLS-SIM040C Rosemount 28 3-CC-FT-5161/BS FT-CC-5161BS FHB 362 H3 1153085 Rosemount 29 3-MS-PT-0301/A1 PT-MS-0301 A RAB 41 7 C4 1153GB9 Water Trtmt. FCI 30 3-FP-FS-8623 FS-FP-8623 Bldg. 390 -
FR72-4 WMC-051 Appendix 0, Rev. 1 03/06/85 I L
(3 of 3)
PRESERVATION PROGRAM SAMPLE INSTRUMENT LIST Item Instrument Nearest Manufacturer No. MEL EPN Number Bldg. E1. Column & Model Fire Eagle Eye Pump Flow Indicator 31 3-FP-FI-01 FP-FI-FI House 390 -
FP-3500-4583 Fire Pump Ashcroft.
32 FP-PI-8604 PI-FP-8604 House 390 -
Duragage Cooling
& Chlor.
33 3-MW-TE-9514 TE-MW-9514 Facility 375 -
Temtex 34 3-BD-FI-0671/A BD-FI-0671 TB 390 TJ 2
Control 35 3-CC-FA-49F1/1AS FA-1-CC4951 AS RAB 41 7 Room 2A0-L2C-R Control 36 3-CC-FA-6951/1 AS FA-1-CC6951 AS RAB 417 Room 2AO-L2C-R Contrel 37 3-CC-FA-5551/1 AS FA-1-CC5551 AS RAB 41 7 Room 2AO-L2C-R
, Control 38 3-SI-PA-039u/1AS PA-1-SIO390AS RAB 41 7 Room 2AO-L2C-R Control Foxboro 39 3-CS-FS-0318/1 AS FS-1-CS0318AS RAB 41 7 Room 2AP+ ALM-AS Control .Foxboro 40 3-CS-FS-0318/2AS FS-1-CS0318AS RAB 41 7 Room 2AP+ ALM-AS Control Foxboro 41 3-CS-FY-0318/1 AS FY-1-C50318AS RAB 41 7 Room 2AP+SQE Control International 42 3-SI-FI-2390/AS FI'-SI-0390AS RAB 41 7 Room 1151 Control Foxboro 43 3-FW-FIC-1111 FIC-1111 RAB 41 7 Room 250 Control Tracor 44 3-TA-XR-REC /VXCD M414 RAB 41 7 Room Westronics WMC-05)
Appendix 0, Rev. 1 03/06/85