ML18022A475
| ML18022A475 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 12/02/1986 |
| From: | Cutter A CAROLINA POWER & LIGHT CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| NLS-86-445, NUDOCS 8612110190 | |
| Download: ML18022A475 (47) | |
Text
REGULA'/Y INPORNATION DISTR IBUTI(SYSTEN (R IDS)
ACCESSION NBR: 8612110190 DQC. DATE: 86/12/02 NOTARIZED: NO DOCKET ¹ FACIL: 50-400 Shearon Harris Nuclear Power Plant> Unit ii Carolina 05000400 AUTH. MANE AUTHOR AFFILIATION CUTTERS A. B. Carolina Power Cc Light Co.
RECIP. NANE RECIPIENT AFFILIATION DENTQNi H. R. Office of Nuclear Reactor Regulation~ Director (post 851125
SUBJECT:
Forwards summary rept of Phase II components 5 status u/
respect to component insp 5 owners group recommended mods 8c insp/action still to be performed. Status of Phase II insp forwarded in response to 861024 OL.
DISTRIBUTION CODE: AOOID COPIES RECEIVED: LTR J ENCL SIZE:
TITLE: QR Submittal: General Distribution NOTES:Application for permit renewal filed. 05000400 I
REC IP ENT COPIES RECIPIENT COPIES lD CODE/MANE LTTR ENCL ID CODE/NANE LTTR ENCL PlJR-A EB 1 PNR-A E I C SB 2 2 PMR-A FOB 1 1 PWR-A PD2 LA 0 PMR-A PD2 PD 01 5 5 BUCKLEY'S B 1 1 PAR-A PSB 1 PWR-A RSB 1 1 INTERNAl ACRS 09 6 6 ADN/LFNB 1 0 ELD/HDS1 1 0 NR /TSCB 1 1 NRR/GRAS 1 0 EG FIL 04 1 1 RQN2 1 1 EXTERNAL: EQM BRUSQUE, S 1 1 LPDR 03 NRC PDR 02 1 NSIC 05 TOTAL NURSER OF COP.IES REQUIRED: LTTR 29 ENCL 25
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SQIt, Carolina Power & Light Company OEG ~en SERIAL: NLS-86-445 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation United States Nuclear Regulatory Commission Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT DOCKET NO. 50-400/LICENSE NO. NPP-53 TRANSAMERICA DELAVAL INC. (TDI) DIESEL GENERATORS
Dear Mr. Denton:
In a letter dated October 24, 1986, Carolina Power & Light Company (CP&L) was issued an Operating License for the Shearon Harris Nuclear Power Plant (SHNPP), Unit 1. , paragraph 7a. to the license states that:
- 7. Prior to full power operation of Shearon Harris, the licensee shall provide the NRC with the following:
- a. The status of the Phase II component inspections. Any Phase II inspection that has not been completed by full power operation shall be completed by restart following the first refueling.
Attachment A is a summary report of the SHNPP Phase II components and provides the requested status with respect to component inspections and Owners Group recommended modifications. An earlier version of Attachment A was provided to the Owners Group (OG; Duke/MATS) for review, concurrence or comment, on CP&L's position for the following ten components; 02-380B, 02-310B, 02-341C, 02 345C ~ 02 630D ~ 02 4 10B > 02 4 1 lA~ 02 360B > 02 455B ~ 02 650B ~
The OG did not review site specific analyses (for example component 02-420) as the responsibility for these analyses resides with the owner per the OG Program (see DR/QR, Volume 1, Section 5).
The OG concurred with CP&L's position except for three components (02-380B, 02-410B, 02-411A) and CP&L's proposed resolution to four recommendations for component 02-650B (marked with an asterick in Attachment A).
Attachment B identifies Phase II inspection/actions still to be performed by CP&L and provides a schedule for their completion. CP&L will perform the OG recommendations. for components 02-380B, 02-410B, and 02-411A and these actions have been incorporated in Attachment B.
8612ii01'VO 86i202 PDR ADOCK 05000400 P PDR I
)'11 Fayettevifle Street o P. O. Box 1551 ~ Rateigh. N. C. 27602
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OE,C 2 1986 For component 02-650B CP&L will obtain a resolution from the OG and will implement all required actions prior to restart from the first refueling outage.
Should you have'ny questions concerning this letter, please contact Mr. Patrick P. Carier at (919) 836-8165.
Yours very uly, A. B. Cutter Vice President Nuclear Engineering 6 Licensing PPC/kts (5079PPC)
Attachment cc: Mr. B. C. Buckley (NRC)
Mr. G. F. Maxwell (NRC-SHNPP)
Dr. J. Nelson Grace (NRC-RIX)
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Page 1 of 23 ATTACHMENT A TO NLS-86-445 SHEARON HARRIS NUCLEAR POWER PLANT TDI DIESEL GENERATORS
SUMMARY
OF OWNERS'ROUP PHASE II COMPONENT RECOMMENDATIONS (As of November 26, 1986) e The TDI Diesel Generator (DG) Owners'roup (OG) issued the SHNPP Design Review/Quality Revalidation (DR/QR) Report in late 1984. This DR/QR Report consists of four volumes and addresses about 164 components utilized on the TDI DGs. In the DR/QR, 15 subjects are referred to as Phase I components (see DR/QR Volume 1, Table 2-1), and all others are referred to as Phase II components. The Phase I components have been thoroughly addressed in previous correspondence to the NRC (e.g., see
,CP&L Letter Nos. NLS-86-360 dated September 18, 1986, and NLS-86-329 dated September 11, 1986) . However, in response to Low Power License Condition Number 7a, this table has been prepared to summarize the status of the SHNPP Phase II components with respect to the DR/QR recommendations.
The attached table was prepared by reviewing each component report contained in Volumes 2, 3, and 4 of the DR/QR from the viewpoint of OG recommended inspections and/or modidications ~be ond that reported as complete in -the DR/QR (i.e., work recommended to be done, but for which records had not been incorporated by, or provided to, the OG prior to preparation of the DR/QR). In this table, the following words and meanings are used:
s None this means that there are no additional recommended inspections or modifications.
Work is complete this means that the inspections or modifications have been completed for the OG recommendations contained within the component report unless specifically noted to the contrary. Implicit in this meaning is the assumption that Field Change Requests (FCRs) have been effectively implemented.
The OG effort as reflected in the SHNPP DR/QR encompassed generic and site-specific analyses and evaluations. However, the SHNPP installation was in the construction stage when a significant portion of the site-specific DR/QR work was performed. In many places in the SHNPP DR/QR, the following typical words are found (these are from R'eport 02-450A):.
"A field walkdown was performed at Shearon Harris. However, a review of this component in its entirety was not possible since portions of the piping and tubing were not installed at the time of the walkdown. Therefore, component acceptability and any subsequent recommendations shall be based upon the lead engine reports (Comanche Peak, Grand Gulf, and Catawba)."
(1138NEL'/ccrc)
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Page 2 of 23 Subsequent to the issuance of the SHNPP DR/QR, in several cases been determined that the actual SHNPP constructed configuration it has is satisfactory and no modification was necessary. In this event, documentation has been placed in the file and the attached table reflects "work is complete" or "no further action is necessary".
To avoid misunderstanding, it must be noted that the following guidance was utilized in preparing the attached table:
- a. It only addresses Phase II components.
- b. It does not normally address maintenance and surveillance (M&S) items because the individual component reports have not been revised to be consistent with the OG M&S Program, Revision 2, which was transmitted to the NRC by a May,l, 1986 letter from Mr. J. B George (Chairman, TDI OG) to Mr. H. Denton. The Justification for the M&S changes was also provided in the noted May 1, 1986 letter. CP&L has previously committed to the NRC to implement Revision 2 of the OG M&S Program.
- c. This table does not address items which are noted as being unresolved (such as nonconformance reports) when the DR/QR was printed (in late 1984) . There are other site programs which assure resolution of those items.
- d. For any individual component, an OG recommendation is only addressed once, even though it might appear more than once in a component report (it might be in the report text and then also included in. the DR and/or QR checklist).
To provide confidence that the review has been thorough, each SHNPP Phase II component report contained in the DR/QR is identified in this table. Where there might be a question of interpretation, clarifying remarks have been provided.
In this table, it can be determined'that there .are 279 items in the OG recommendation column (each engine is counted separately), and the following summary statements can be made:
- 1. The SHNPP program 'has completely addressed the OG recommendations.
- 2. The OG inspections (not including modifications) have been completed ~ence t Eot Components 02-380B, 02-410B, 02-4114, end 02-360B. In each case, a reasonable alternative action was pursued.
- 3. Necessary clarifications and exce tions to the OG M&S Matrix, Revision 2 are identified on pages II, 17, and 20.
- 4. For Component 02-650B, it should be understood that when adequate diode and SCR temperatures have been demonstrated for one complete plant fuel cycle, then the monitoring (6 items; I.A.I through I.B.3) may be discontinued.
(1138NEL/ccrc)
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Page 3 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or Justification VOLUME 2 F-068, Modification should be made Appropriate drains already Intercooler to add a low point drain existed. Work is complete.
downstream; both engines.
02-CFR, Turbo- Three items, both engines. Work is complete.
charger Thrust Bearing Lubricant System 02-375, Intake Three items, both engines. Work is complete.
Manifold and Piping (LB) 02-380A, Exhaust There are four recommendations Subsequent to the DR/QR Manifold concerning replacement of slip issuance, Duke Power Company points with welded flanges; performed an analysis for both engines. SHNPP, which justifies the adequacy of the existing configuration.
02-380B, Exhaust Three items, both engines. Work ie done ~exce t verifi Manifold: Gasket cation of capscrew torques; and Bolting both engines. This bolting does not have a specific torque requirement, is exposed to exhaust temperatures (about 1000'F), and is installed without lubricant per TDI instructions. The bolting was installed evenly and snug. No abnormal observations during operation of both engines.
02-436A, Inter- None cooler Piping:
Pipe (LB only) 02-436B, Inter- None cooler Piping:
Coupling, Gaskets, and Bolting 02-475A, Turbo- Three items, both engines. Work is complete.
charger: Brackets (1138NEL/ccrc)
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Page 4 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or Justification 02-475B, Air Three items on "A" engine. Both engines vere delivered Butterfly Valve One item on both engines. with the grease fittings Assembly (SIM 322) installed. "A" inspections vere satisfactory.
Work is complete.
02-475C, Turbo- See 02-475A.
charger Bracket:
Bolting and Gaskets 02-, 805B, Intake None Air Filters 02-805C, Intake None Air Silencer 02-805D, Flex None Connections00-420, Lube Oil None Pressure Regulating Valve 02-307A, Lube Oil None Fittings: Internal Headers (LB) 02-307A, (SB) None 02-307B, Lube Oil None Fittings: Internal Tubing and Fittings (SB) 02-307D, Lube Oil None Fittings: Internal Supports (SB)02-420, Engine- Install a Dresser Coupling in the Site-stress analysis performed Driven Lube Oil pump suction line to mitigate a calculation Justifying Pump loadings on the pump nozzle; adequacy of existing configu-both engines. ration for both engines. No further action is necessary.
02-465A, Lube Oil One item, both engines. Work is complete.
Lines External Tubing, Fittings, Couplings (LB)
(1138NEL/ccrc)
S 5~i Page 5 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or Justification 02-465A, Lube Oil See 02-465B (SB).
Lines - External Tubing, Fittings, Couplings (SB) 02-465B, Lube Oil None Lines - External Supports (LB) 02-465B, Lube Oil Two recommendations concerning Work is complete.
Lines External support modifications; only "B" Supports (SB) engine.
02-465C, Lube Oil None Lines External Valves 02-465D, Lube Oil None Keep Warm Strainer 02-467A, Turbo- Remove Dresser Couplings and Site-stress analysis charger Lube Oil replace with welded flanges; performed a calculation Fitting: Piping both engines. Justifying adequacy of (LB) existing configuration for both engines. No further action is necessary.
02-467A, Turbo- See 02-467B (SB).
charger Lube Oil Fittings and Piping (SB) 02-467B, Turbo- One support modification Work is complete.
charger Lube Oil recommendation; both engines.
Fitting: Supports (LB) 02-467B, Turbo- Addition of one three-directional Work is complete.
charger - Lube Oil support recommended; both engines.
Fittings: Supports (SB) 02-540A, Lube Oil Two items, both engines. Work is complete.
Sump Tank with Strainer Assembly and Mounting Hardware 02-540B, Lube Oil None Sump Tank Misc.
Fittings, Gaskets,'ipe and Bolting (1138NEL/ccrc)
Page 6 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or 'Justification 02-540C, Lube Oil See 02-540A.
Sump Tank:
Mounting Hardware 02-717H, Auxiliary None Sub-Base & Oil &
Water Piping Lube Oil: Pipe and Fittings (LB) 02-717H (SB) Two support installation guide- Work is complete.
lines recommended; both engines.
02-717I, Auxiliary None Sub-Base & Oil &
Water Piping Lube Oil: Valves 02-717J, Auxiliary None Sub>>Base & Oil &
Water Piping - Lube Oil: Gaskets and Bolting 02-717K, Auxiliary None Sub-Base & Oil &
Water Piping Lube Oil: Supports and Mounting Hardware (LB) 02-.717K (SB) Verify that supports provide a Work is complete.
minimum of two directions of restraint; both engines.
02-820A, Lube Oil None Full Pressure Strainer 02-820B, Lube Oil None Heat Exchanger 02-820C, Misc. None Equipment Heater, Lube Oil Sump Tank 02-820D, Lube Oil None System Auxiliary Lube Oil Pump (1138NEL/ccrc)
Page 7 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or Justification 02.-820E, Full None Flow Lube Oil Filter 02-820F, Lube Oil None Keep Warm Pump 02-820G, Lube Oil None Keep Warm Filter 02-310B, Main 1. After 100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br /> run or pre- A LP was done on "A" in Bearings operational testing, perform a November 1985 (after 200 or LP of shells. Minimum 'isual hours) with satisfactory sample to be No. 5 main bearing results. "B" was visually shells. inspected before site operation. The OG Revalidation Checklist No. gR 02-02-310B identifies this inspection as on a "single engine per station".
Therefore, work is complete.
- 2. Perform a dimensional check No. 5 shell was checked for of shell for thickness. both A and B (preoperational).
Work is complete.
02-310C,'Crank- None shaft and Bearings:
Thrust Bearing Ring 02-311A, Crank- None case: Crankcase Assembly 02-311D, Crank- None case: Crankcase Mounting Hardware 02-386B, Crank- Two items; both engines. Work is complete.
case: Crankcase Gaskets and Mounting Hardware 02-315D, Cylinder None Block Liners and Jacket Water Manifold and Piping (LB) 02-315F, Cylinder One item, both engines. Work is'complete.
Block Liners and Water Manifold Cylinder Head Nuts (1138NEL/ccrc)
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Page 8 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or Justification 02-315G, Cylinder One item, both engines. Work is complete.
Block Liners,and Water Manifold:
Seals and Gaskets 02-385B, Cylinder Two items, both engines. Work is complete.
Block Covers:
Gaskets and Bolts VOLUME 3 02-441A, Starting None Air Manifold Piping, Tubing, and Fittings (LB) 02-441A (SB) None 02-441B, Starting Free flowing drains should be Drains existed on both engines Air Manifold: added to the air distribution when delivered. Work is Valves, Strainers, filter; both engines. complete.
and Filters I '
Starting Four support modifications from A site-specific analysis '2-441C, has Air Manifold the lead engine DR/QR are recom- justified the adequacy'f the Supports (LB) mended for implementation; both configuration for 'xisting engines. both engines. No further action is necessary.
02-441C (SB) Two support modifications (one Work is complete.
per engine) were recommended for implementation.
02-442A, Starting Three items on both engines. Work is complete.
Air Distributor: One item on one engine.
Distributor Assembly 02-442B, Starting See 02-44IA and C Air Distributor: and 02-307B.
Tubing, Fittings, and Gaskets 02-835D, Starting None Air Tank 02-341B, Piston: One item, both engines. Work is complete.
Rings (1138NEL/ccrc)
ee Page 9 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or Justification 02-34IC, Piston Two items on both engines. Work is complete ~exce t for the Pin Assembly Two items on "A" engine. installation of piston pin snap ring retrainers on both engines.
The OG recommendation for replacement of the pin retaining rings is based upon .
the ring rotating in two directions. The existing spiral ring retainers were installed per TDI directions (used Locktite to prevent rotation; Drawing No. 03-341-02, Revision C) for both the "A" and "B" engines. As presented in CPSL's Letter to NRC of February 11, 1986 (NLS-85-464, Attachment B'), the retaining rings on the "A" engine pistons were examined after 200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br /> of operation and found satisfactory. Per the M&S Matrix (page 'II-C-6), a sample piston pin inspection is to be performed at the five-year interval. For the sample, the rings will be replaced at that time. If a problem is detected during that inspection, all rings will be replaced. If no problems are detected, the remaining rings will be replaced during the 10-year overhaul.
Also, wrist pin R-5 was reused as it was found acceptable per Letter No. OGTP-444-0-267, dated October 24, 1984.
02-345A,'appets One item, both engines. Work is complete.
and Guides: Intake and Exhaust Tappet Assembly 02-345B, Tappets One item,'oth engines. Work is complete.
and Guides: Fuel Tappet Assembly (1138NEL/ccrc)
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Page 10 nf 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or Justification 02-345C, Tappets The DR/QR says "Quality Revali- When the engines were received, and Guides: Fuel dation is not required". However, the fuel in)ection pumps were Pump Base Assembly it also has a sentence that says mounted on the block. They "Initial bolt torque should be as have not been removed and no specified in the TDI manual". evidence of improper timing or leaks has been observed during site testing. No action is necessary.
02-350A, Camshaft: One item, both engines. Work is complete.
Camshaft Assembly 02-350B, Camshaft: None Camshaft Bearing 02-350C, Gear One item, both engines. Work is complete.
Train Assembly Two items on "A" engine.
02-362A, Subcover One item, both engines. Work is complete.
02-390A, Rocker One item on "B" engine. Work is complete.
Shaft A'ssemblies:
Intake/Intermediate and Exhaust 02-390B See 02-390A.
02-390E, Rocker None Arms and Pushrods:
Bushings 02-335B, Front One item, both engines. Work is compl'ete.
Gearcase: Bolting One item on "B"'engine.
and Gasket 02-355A, Gear See 02-350C. Work is complete.
Train Assembly One item on "A" engine.
02-355B See 02-350C and 02-355A.
02-355C, Idler One item on "A" engine. Work is complete.
Gear Assembly Bolting and Gaskets 02-330A, Flywheel None 02-330B, Flywheel None Bolting (1138NEL/ccrc)
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0 Page 11 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendatio'n'ne or Justification 02-630A, Engine general item on both engines. Work is complete.
and Auxiliary One item on A.
Module Wiring One item on B.
Material and Fittings: Conduit, Fittings, and Supports 02-630B See 02-630A.
02-630C See 02-630A.
,02-630D, Pyrometer None Conduit Assembly Thermocouples THE OG MAINTENANCE.6 SURVEILLANCE MATRIX (REVISION 2, PAGES II-C-21 AND -22) INCLUDES THREE RECOMMENDATIONS ON THESE THERMOCOUPLES (TC'S)'NE OF THESE IS TO "CLEAN AND INSPECT THERMOCOUPLES AND THERMOCOUPLE SHIELDS AS REQUIRED." THESE TC'S ARE LOCATED IN EACH CYLINDER HEAD EXHAUST PIPE AND ON THE TURBOCHARGERS. THE ACTUAL TC IS CONTAINED IN A METAL TUBE WHICH IS POSITIONED IN THE EXHAUST GAS PATH. THE REMOVAL OF THE TUBE (WHICH IS THE SHIELD) AND CLEANING AND INSPECTION OF THE TUBE EXTERIOR SURFACE WILL BE THE BASIS FOR SATISFYING THIS RECOMMENDATION.
02-688A See 02-630A.
.02-688C, Engine None and Auxiliary Module Wiring Material-Boxes and Terminals 02-688D, On-Engine None Alarm Sensors02-689, Off-Engine None Alarm Sensors 02-410A, Over- Two items, both engines. Work is complete.
speed Trip:
Governor (1138NEL/ccrc)
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Page 12 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or Justification 02-410B, Over- Five items on the "A" engine. Work is complete ~exes c for speed Trip: governor shaft visual, LP, Governor and and dimensional check (three Accessory Drive items). As a result of a Assembly visual examination, both assemblies were returned to TDI for rework. Thrust clearances were verified after rework.
02-410C, Over- One item, both engines. Couplings were replaced.
speed Trip: Work is complete.
Couplings 02-410D, Over- None speed Trip Vent Valve 02-411A, Governor One item on "A" engine. Due to visual inspection Drive: Governor & results, component was returned Tachometer Drive to TDI for rework (shaft and Gear and Shaft bushings were replaced).
Resinstalled without further site inspection.
02-411B, Governor Three items, both engines. Couplings were replaced.
Drive: Couplings, Work is complete.
Pins, and Keys 02-413A, Governor Two items, both engines. Work is complete.
Linkage 02-415A, Governor None Assembly: Woodward Governor 02-'415B, Governor One item on "B" engine. Work is complete.
Assembly: Booster Servomotor 02-415C, Governor One item, both engines. Work is complete.
Assembly Heat Exchanger 02-695A, Engine Four support fixes on both Work is complete.
Shutdown Equip- engines. Seven support fixes ment -'ubing/ on "B" engine.
Fittings &
Supports (SB)
(I.138NEL/ccrc)
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Page 13 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or Justification 02-695B, Engine None Equipment
'hutdown Valves, Regulators, and Orifices I
02-695C, Engine None Shutdown Trip Switches VOLUME 4 02-316A, Jacket- One item, both engines. Work is complete.
Water Inlet Manifold Manifold Assembly with Hard-ware and Coupling and Gaskets (LB) 02-316B See 02-316A.
02-316C, Jacket It is recommended that the This vent line was deleted Water Inlet supports for the vent line be from the design and thus there Manifold' Vent verified to have sufficient are no applicable supports.
Line to Discharge strength; both engines. No action necessary.
Manifold 02-317A, Jacket None Water Discharge Manifold/Piping (LB) 02'-317B See 02-317A.
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02-317C, Water One support verification (or As-built supports were found Discharge Manifold: modification); both engines. to satisfy criteria. Work Supports (LB) is complete.
02-435A, Jacket One general support modification A site-specific stress analysis Water Fittings recommended; both engines. has demonstrated the adequacy Pipe and Fittings of the as-built conditions. No (1.B) action necessary.
02-435A (SB) None 02-435B, Jacket See 02-435A (LB).
Water Fittings:
Supports (LB) 02-435C, Jacket None Water Inlet Fittings: Valves (1138NEL/ccrc)
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Page 14 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or Justification 02-437, Turbo None Water Piping (LB)02-437 (SB) None 02-700A, Jacket Install a vent line per TDI Work is complete.
Water Standpipe: design; both engines.
Pipe, Fittings, and Gaskets Two support verifications/ The as-built supports were modifications; both engines. inspected and fudged to be adequate. Work is complete.
02-700B, Jacket None, Water Standpipe Valves 02-700C, Jacket Two items, both engines. Work is complete.
Water Standpipe:
Pipe Supports 02-700E, Jacket One item, both engines. During our review of the switch Water Standpipe:
Switches acceptability, it .has been determined that the switch needs to be replaced. A component compatible with the J.W.'ystem chemistry is to be installed before the first refueling outage ends.
02-700F, Jacket One item, both engines. Work is complete.
Water Standpipe and Misc. Bolting 02-717B, Aux. Sub None Base & Oil & Water Piping Jacket Water: Valves 02-717D, Aux. Sub None Base & Oil & Water Piping Jacket Water: Pipe, Couplings, Fittings, Orifices, Y-Strainers (LB) 02-717D (SB) One item, both engines. Work is complete.
(1138NEL/ccrc)
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Page 15 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or Justification I
02-717E, Aux. Sub None Base & Oil & Water Piping - J.W.:
Gaskets & Bolting 02-717F, Aux. Sub None Base & Oil & Water Piping Jacket Water: Supports (r.B) 02-717F (SB) One item, both engines. The as-built configuration was evaluated and is considered satisfactory. Work is complete.
02-810A, Misc. None Equipment Heater Jacket Water 02-810C, Jacket None Water Heat Exchanger 02-810D, Jacket None Water Standby Heater Pump 02-810E, Jacket One item, both engines. Work is complete.
Water: Thermo-static Valve 02-360B, Cylinder Four items, both engines. Work 1e comp1ete ~exec t that Head Valves: One item on "A" engine. the dimensional check of the Intake and Exhaust valve-to-valve guide clearance Valves was only performed on the "A" engine. Also, the "A" engine was reinspected following about 200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br /> of site operation with satisfactory valve clearance results. As the "B" engine operation has been satisfactory (as shown by exhaust temperatures and'firing pressures) and the operating data is to be recorded and evaluated, no further action is necessary.
02-360C, Cylinder Two items, both engines. Work is complete.
.Head and Valves: 4 Bolting and Gaskets (1138NEL/ccrc)
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Page 16 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or Justification 02-360D, Cylinder One item on "A" engine. Work is complete.
Head and Valves:
Springs 02-365A, Fuel None Injection Pump 02-365B, Fuel None In5ection Equipment Fuel Infection Tips 02-365D, Fuel None Infection Equipment:
Supports (SB) 02<<371A, Fuel One item, both engines. One Work is complete.
Control Rod item on "A" engine.
Linkage and Bearings 02-371B, Fuel See 02-37IA.
Pump Linkage:
Linkage Assembly and Bearing 02-413B, Fuel None Pump Linkage:
Automatic Shutdown Cylinder 02-445, Fuel Oil None Booster Pump 02-450A, Fuel Oil Header: Piping/
Due to a vibration concern recommended that the 3/4 inch it is SHNPP does not have 3/4 inch tubing or the corresponding Tubing threadolet be changed to a reducing fittings. In addition, socket welded tee; both engines. supports have been added per 02-450B and thus the vibration concern is no longer considered applicable. No action is necessary.
(1138NEL/cc))
Page 17 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or Justification 02-450B, Fuel Oil Three items on the "A" engine. Work ie complete ~exec t for Header: Fuel Oil Three items; both engines. two items on both engines. A Supports (SB) change was proposed for one of the two-directional restraints on the fuel oil drip header. The as-built supports were inspected and found to satisfy the OG criteria. Also, the recommendation for an anchor on the fuel-oil-to-day-tank return piping was evaluated and found not necessary. No action is necessary.
02-455A, Fuel Oil None Filters and Strainers: Filters 02-455B, Fuel Oil One item, both engines. The recommendation of changing Filters and The DR/QR recommendation is the strainer to a coarser Strainers: to place the strainer with a design is considered to be Strainers coarser design that would nonconservative and not require less maintenance. desired. Infector protection From a flow viewpoint, the is enhanced by retaining the strainer is between the day existing design. No action is tank and the fuel pump. necessary.
THE OG MAINTENANCE & SURVEILLANCE MATRIX (REVISION 2, PAGE II-C-17)
CONTAINS TWO RECOMMENDATIONS FOR THIS COMPONENT: ONE OF THESE IS TO "PURGE AIR FROM THE STANDBY STRAINERS - AS REQUIRED." IN ACCORDANCE WITH THE DESIGN, THE SHNPP INSTALLATION DOES NOT HAVE ANY INSTALLED EQUIPMENT TO ACCOMPLISH THIS PURGE. THE PURGE IS ACCOMPLISHED BY A SLOW TRANSFER OF DUTY FROM ONE STRAINER TO THE
- OTHER. THESE STRAINERS HAVE BEEN CHANGED DURING THE START-UP TESTING PROGRAM AND THE PROCEDURE UTILIZED HAS PROVED SATISFACTORY.
02-455C, Fuel Oil None Filters and Strainers:
Mounting Hardware 02-717M, Aux. Sub None Base and Oil and Water Piping Fuel Oil: Piping and Fittings (SB) 02-717P, Aux. Sub None Base Oil and Water Piping - Fuel Oil:
Bolting and Gaskets (1.138NEL/ccrc)
ev i Page 18 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or Juhtif'ication 02-825A, Fuel Oil 'one Day Tank 02-825B, Fuel Oil None System Fuel Oil Duplex Strainer 02-650A, Emergency None Diesel Generator 02-650B, Generator The report in the DR/gR consists of written text and three Controls attachments. Because of the number of recommendations (which apply to both engines) and their different categorizations, this component is treated specially in this table. The guidance for the three attachments (as identified on page 5 of the component report) is as follows:
Attachment 1 to be implemented prior to'lacing the engine in standby service.
Atta'chment 2 to be implemented by, or prior to the first refueling outage. The implementation of these recommendations eliminates the recommendations of Sections IA, IB, and IC of Attachment I.
Attachment 3 - to be implemented at the discretion of CP&L.
Attachment I I.A.1. Monitor the maximum Temperature sensitive labels to 02-650B temperature of the diodes by are installed for both using a temperature sensitive engines. Work is complete.
label.'he label should be of the type that permanently blackens at 275'F.
I.A.2. Monitor the diode labels Required by current procedures.
before and.after each running Work is complete.
of the diesel generators.
I.A.3. If the temperature label Required by current procedures.
indicates that 275'F has been Work is complete.
exceeded, then perform an electrical test of the diode, remove the diode from the heatsink, and inspect the mounting threads. If acceptable, replace the diode and heatsink and ensure proper mounting tightness.
(1138NEL/ccrc)
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Page 19 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or Justification I.B.I. Monitor SCR temperatures Temperature sensitive labels in a manner similar to the are installed for both engines.
diodes. The temperature Work is complete.
limit is 220'F.
I.B.2. Monitor the SCR labels Required by current procedures.
before and after each running Work is complete.
of the diesel generator.
I.B.3. *If the temperature label Required by current procedures.
indicates, that 220'F has been Work is complete.
exceeded, remove, test, and reinstall acceptable components.
I.C.1. Coat the sides of the Work is complete.
lugs and mounting bolt for the lugs that attach to the bottom of the diode and SCR heatsinks with Glyptol lacquer. Put on a readily visible side so that relative motion can be detected.
I.C.2. Inspect the heatsink lug Required by current procedures.
connections after each monthly Work is complete.
test. If necessary, retighten connections and reapply Glyptol.
II.A.1. On the five adjustment The recommendation for coating potentiometers, coat one side of the adjustment screws is based the ad). screw on the circuit upon a vibration concern. At board with Glyptol lacquer. SHNPP, the control cabinets are located in a separate room away from the DG; the building is seismically designed. The equipment was qualified by vibration testing at WYLE Laboratories. There have been no observed vibration-induced problems with these components during the startup test program (over 300 hours0.00347 days <br />0.0833 hours <br />4.960317e-4 weeks <br />1.1415e-4 months <br /> on the "A" engine and over 150 hours0.00174 days <br />0.0417 hours <br />2.480159e-4 weeks <br />5.7075e-5 months <br /> on the "B" engine). The existing configuration is considered adequate.
II.A.2. If adjustments are See following comment.
needed, remove the Glyptol and reapply when the work is complete.
(1138NEL/cc5)
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Page 20 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or Justification II.B.1. At each outage, remove The cabinet air inlets have the cover of the voltage their own filter and the cabinets regulator enclosures and inspect sit in a separate closed room.
the components mounted on the Cleanliness inside the cabinets circuit boards for cleanliness. has not been a problem.
Inspection is not required.
RECOMMENDATIONS II.A.I, II.A.2, AND II.B.I ARE IN THE OG M&S MATRIX, PAGE II-C-3, AS. ITEMS 7 AND 8. HOWEVER, THERE IS NO KNOWN APPLICABLE ADVERSE OPERATING EXPERIENCE WHICH JUSTIFIES THESE ACTIVITIES. COVER REMOVAL FOR ACCESS TO THE POT SCREWS WAS ATTEMPTED DURING OUR START-UP PROGRAM AND RESULTED IN INTERNAL CONNECTING WIRES BEING INADVERTENTLY DE-TERMINATED. THESE THREE ITEMS ARE CONSIDERED TO HAVE A POTENTIAL FOR REDUCING RELIABILITY AND WILL NOT BE PERFORMED.
II.C.I. An adequate supply of This is the perogative of the spare parts should be maintained. utility and our spare parts inventory is adequate. No action is necessary.
l III. Replace the field flashing The primary concern with the
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relay with one properly rated. relay was based upon the The relay should be an specified voltage rating. An enclosed type. analysis of the voltage drop, based upon the actual installed wiring, has shown that the voltage at the relay will be greater than 100V which is the lower value of the installed relay's rating. The other relay. concerns of contact voltage rating, contact current ratings, continuous and interrupting ratings, and open versus enclosed contacts have been independently assessed for the SHNPP equipment'nd the existing relay is considered to be ad'equate. No action is necessary.
IV. The left rear and center Filtered inlets and exhaust cabinets must be ventilated or fans (5) were installed on the cooled so that the internal air Control Panels as a unit (not temperature does not exceed on center rear cabinet) . The 120 F. air temperatures are within the limit.
(1138NEL/ccrc)
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Page 21 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or Justification to I.A. The bridge rectifier Filtered inlets and exhaust 02>>650B assembly in the left front fans (5) were installed on the cabinet must be ventilated so Control Panels as a unit. The that the internal air tem- air temperatures are within perature does not exceed 140'F. the limit.
I.B. The diodes should be CP&L is working to have the mounted on the heatsinks with diode/heatsink mounting drilled holes, nuts, and properly modified. This will lockwashers and properly be done before the end of the tightened. first refueling outage.
I.C. The SCRs should be mounted An inspection of the SHNPP on the heatsinks with drilled equipment has shown conformance holes, nuts, and lockwashers and to the OG criteria. Work is properly tightened. complete.
I.P.1. The bolted on lug The two lugs on a terminal is arrangement must be redesigned a general good'practice but is so that there are no more than primarily aimed at screw-type two lugs o'n each bolt. terminals. The terminals in question are stud connections (stronger due to larger size).
The installation has been inspected and the conductors are not exerting undue loadings on the studs and there is no evidence of stud deformation.
During the heatsink/diode modifications (see Attachment II, Item I.B. comment), to the extent reasonable, these lug/
bolt arrangements will also be modified.
I.D.2. Heatsink anodizing must While generally a good practice, be removed in the contact areas discussions with the vendor has of all bolts and bus bar studs. indicated that the anodizing process used (ALODINE 00014) has electrical and thermal properties equivalent to the heatsink material. This surface treatment prevents adverse long-term oxidation and degradation
'of the interface. In addition, SHNPP has used a coupling gel (which is acceptable to the vendor) for the mounting of the components and this is equal ta or better than bare surface contact. No additional action is necessary.
(1138NEL/ccrc)
e Page 22 of 23 Component Paraphrased Status/Comment Number and Name OG Recommendation or Justification I.D.3. Current carrying surfaces An inspection of the SHNPP of lugs must not be separated by equipment has shown conformance washers or nuts. to the OG criteria. Work is complete.
II; Any integrated circuit which An inspection of the SHNPP is in the TO-5 package shall be equipment has shown that DIP replaced with those of the DIP packages were used and the OG or mini-DIP package. criteria is satisfied. Work is complete.
III.'he lug* arrangement of the The connection in question is power circuit reactors should be a through bolt with one lug on modified so that there are no one side of the bus and two more than two lugs on any one lugs on the other side. The bolt. bolt is not overly stressed and the cables/lugs are not overly loading the bolt. The existing configuration is satisfactory. No action is necessary. to Five item categories, both These items are recommended to 02-650B engines. improve long-term reliability and are clearly identified as discretionary. The items require design evaluation before implementation and, due to the higher priority of other items, have not yet been addressed in detail. They have been identified as items to be addressed after commercial operation of the plant..
02-650C, Generator: None Shaft and Bearings 02-500A, Control None Panel Assembly:
Cabinet/System 02-500F, Control None Panel Assembly:
Accumulator 02-500G, Control None Panel Valves (1138NEL/cc))
0 Page 23 of 23 Component Number and Name OG Paraphrased Recommendation
.'.,'tatus/Comment or Justification 02-500H, Control None Panel Assembly:
Pressure Switches 02-500J, Control None Panel Assembly:
Control Relays 02-500K, Control None Panel Assembly:
Solenoid Valves 02-500M, Control None Panel Assembly:
Piping, Tubing, Fittings 02-500N, Control None Panel Assembly:
Terminal Boards/
Switches, Wiring 02-550, Foundation None Bolts Anchor Bolts, Miscellaneous Hardware 02-717A, Auxiliary One item, both engine's. The auxiliary sub-base is Skid non-ASME. The skid piping and supports are designs in accordance with the ASME Code, are seismic, and have been N-5 stamped. The equipment is considered acceptable. Work is complete.
(1138NEL/ccrc)
F Page 1 of I ATTACHMENT B TO NLS-86-445 TDI DIESEL GENERATORS FUTURE CP&L ACTIONS CP&L had requested Owners'roup (Duke/MATS personnel) review and concurrence or comment on an earlier version of Attachment A. As a result of the review and where necessary, the CP&L position in Attachment A has been revised to be 'consistent with the results of the Owners'roup review.
As a summary of Attachment A, CP&L will complete the following inspect'ions and actions prior to restart from the first refueling outage:
I. Page 3, Component 02-380B: The capscrew torques (without lubricant) will be checked/corrected for both engines.
- 2. Page 12, Component 02-410B: The remaining QR inspections will be performed on the A engine components.
- 3. Page 12, Component 02-411A: The remaining gR inspections will be performed on the A engine components.
- 4. Page 14, Component 02-700E: An acceptable )acket water standpipe level transmitter will be installed for both engines.
- 5. Page 21, Component 02-650B, Item I.B: Complete the diode/heat sink modification for both engines.
(1226NEL/ccrc)
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