ML20058L957

Forwards Rev 1 to Inservice Testing Program for Pumps & Valves,Adding Cold Shutdown Justification

ML20058L957
Person / Time
Site:	Seabrook
Issue date:	08/03/1990
From:	Feigenbaum T PUBLIC SERVICE CO. OF NEW HAMPSHIRE
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NYN-90152, NUDOCS 9008090066
Download: ML20058L957 (15)

Text

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, , \_- 'g Nbw Hampshire lo esi i and -

Chief Operating Officer :

NYN-90152 August 3, 1990 United States Nuclear Regulatory Connission Washington, DC 20555 Attention Document Control Desk

References:

(a) Facility Operating License No. NPF-86, Dock 9t No. 501443.

(b) PSNH Letter, NYN-88009,_ dated June 25, 19f8, " Inservice f

Testing .(IST) of Pumps anu Valves (Chugt a to Revision 1)',

G.- S. Thomas to NRC (c) USPRC Letter, dated April 3, 1989, 'Guilance on Developing Acceptable Inservice. Testing Programs (Generic Letter No. 89-04)"-

Subject:

Inservice Testing (IST) of Pumps and Valves (Changes to Revision 1)

Gentlemen

.; Enclosed please find changes to the New Hampshire Yankee Inservice

-Testing Program'(IST), Revision 1., These changes are being submitted in accordance with-Generic Letter'89-04-(Reference (c)) and the New Hampshire

-Yankee IST Program. These changes do not require prior NRC approval due to

, guidance listed in Generic Letter _89-04 and ASME Art.cle IWV-3412 The Enclosures amending the IST Program, Revision 1, are as follows:

. Enclosure ' As - This Enclosure changes the exercise test frequency of the high

(, head safety injection isolation valves (SI-V138 and SI-V139) in Lthe IST Program. The-justification for this change is provided in Enclosure B.

Enclosure'B This Enclosure adds Col'd Shutdown Justification, CSJ-1, for the high head safety injection isolation valves (SI-V138 and SI-V139), to the IST Program.

g Enclosure-C: 'This Enclosure adds Note 64, as referenced in Enclosure L, to the IST Valve Testing Requirements Notes for Revision 1 of the IST.

/-- Program.

O Enclosure D This Enclosure provides NHY P&ID 1-SI-B20447, as referenced in Enclosure A, for NRC review.

., 9008090066 900803 :

ADOCK 05000443 PDR P' PDC UU0iU7 New Hampshire Yankee Division of Public Service Company of New Hampshire '[

P.O. Box 300

• Seabrook, NH 03874 Tehphone (603) 474 9521 v

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2 4 g 1 United States 1 Nuclear Regulatory Commission August 3, 1990 Attention: Document Control Desk Page 2 Enclosure,E This Euclosure adds Relief Request G-6 to the IST. Program. The intent of the alternate testing described in this relief-request is consistent with Position 5 of NRC Generic Letter _89-04,

_(Reference C) and does not require-NRC approval.

Enclosure F .This Enclosure adds Relief Request G-7:to tha IST Program. .This relief request complies with the intent of Position 10 of NRC Generic Letter 89-04, (Reference C) and does not require NRC approval.

Should you have-further questions regarding this'information, please-contact Mr. Ji M. Peschel, Regulatory Compliance Manager, at (603) 474-9521' extension 3772.

Very truly yours, fg &

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Ted C. Feigenbaum TCF:CLB/ssi/dma Enclosures-cci Mr.1 Thomas T.-Martin Regional Administrator United States Nuclear Regulatory Commission Region I 47% f.llendale Road King of Prussia, PA 19406 Mr. Noel Dudley NRC Senior Resident Inspector

'P.O. Box 1149 Seabrook, NH 03874

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ENCLOSURE A FIGURE 5.3 -

-VALVE TESTING REQUIREMENTS ,

~ *NHY P&ID 1 51.B20447 SYhTEt: SAFETY INJECTION HIGH HEAD P&ID NO. 805010 .

'S 5 S S S S S S S S VALVI: S I I I I I I I I I I -I l v v v v v v v v v v v 1 1 1 1 1 1 1 I 2 -1 1 3 3 4 4 4- 5 5 5 9 5 6 8 9 0 4 8 2 6 7 7 8 0 COORDINATES: G6 G6 C3 D4 D4 D4 C4 C3 C3 03 C3 FUNCTION: A A- A A A A A A A A A j 2 2 1 1 1 1 2 .2 2 2  !

CODE CLASS: 1 B B AC AC- AC AC' AC B C B B CATEGORY:

SIZE (IN): 4 4 3 1.5 1.5 1.5 1.5 3/4 4 3/4 3/4 G C C C C C GL C GL GL VALVE TYPE G M _ - _ A _ A A ACTUATOR: c.1 _ _

NORM POSITION: C C C C C C C C C C .C LEAK TEST REQ: 1 1 1 1 1 2 LEAK TE3T REL: X X X X X LEAK TEST ALT: 1 1 1 1 1 EXER TEST REQ: 1 1 3 3 3 3 3 1 3 1 1 EXER TEST REL: X X X X X X X X EXER TEST ALT: 2 2 3 3 3 3 3 3 X X X F.S. TEST REQ:

X X X POS IND TEST: X X NOTES: 64 64 10 10 10 10 10 20 20 20 20 20 20 REMARKS:

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ENCLOSURE B-

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p COLD SHUTDOWN JUSTIFICATION: CSJ-1

~ VALVES: ISI-V138~and SI-V139 CATEGORY: -B1 t_ ' CODE CLASS .2 FUNCTIO 4 ' Containment isolation /high head safety injection isolation.

' TEST REOUIREMENTS: -IMV-341 - full stoke exercise quarterly.-

BASIS FOR-COLD These valves cannot be exercised during normal plant <

operation. Exercising these. valves would direct

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SHUTDOWN TESTING:' 4 centrifugal charging pump flew to the highLhead safety;. 't injection flow path introducing relatively cold water toi  ;

-the reactor coolant system, and would divert seal injection flow from the reactor coolant pump-(RCP),

possibly damaging RCP ~ seals and bearings.

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. ALTERNATE TESTING: These valves shall be full stroke exercised during cold

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shutdowns.

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' Exercising-these valves would direct relatively cold centrifugal charging pump flow through'the high head safety injection flow path lf; 'to the RCS, and-would divert reactor coolant pump (RCP seal injection  ;

, flow, possibly damaging RCP seals and bearings (CSJ-1). il1

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i ENCLOSURE E TO NYN-90152 i

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F New Hampshire' Yankee August 3, 1990 I ENCLOSURE E RELIEF REQUEST: -G-6 i VALVES: All power operated valves other than rapid acting. valves. [

CATEGORY: A and B t

CODE CLASS: 1, 2, 3 AND NNS .i

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FUNCTION: Various TEST REQUIREMENTS: IWV-3417(a) (corrective action)' requires.that corrective .{

action be taken.if power operated valves display an  ;

increase in stroke time of 25% or grater for valves with full stroke times greater than 10 seconds or 50% or more for valves with full stroke times less than or equal to. q 10 seconds from the previous stroke time.  !

BASIS FOR RELIEF: IWV-3417(a) may allow for an unchecked gradual degradation (stair ctep) process resulting in possible failure of a valve.- An increase of full stroke times, less than the limits specified in IWV-3417, from the previous test wold allow possible valve degradation to ,

go unchecked without any corrective action until valve l failure.

• The intent of inservice testing is'to take action'on a l degrading valve before the valve reaches the point where l there is a high probability of failure to perform its l safety function if called upon.

ALTERNATE TESTING: Limiting values of' full stroke time and corrective-

< action-limits.shall be determined from~a reasonable deviation-from an established referenced value.

Reference values shall be. determined form the results of pre-service or inservice testing. .These teste shall-

.be performed under conditions as near asEpracticable to those expected curing subsequent inservice testing.

Reference values shall be established when the valve is known to be operating acceptably.

When the technical specification or safety analysis limit for a valve is less than the values established from a deviation of reference stroke time, the technical specification or safety analysis limit shall be used.

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ENCLOSURE E (Continued)

~ ALTERNATE TESTING ' When the technical specification or safety analysis j

-(Continued) limits for a valve are greater than tho' values established from a deviation of reference. stroke time, 4

the stroke time values established from a deviation of ,

. reference values shall be used.

The intent of alternate testing: described in this relief ,

request is consistent with Position Number 5 of NRC ~'

l Generic Letter 89-04, " Guidance on Developing Acceptable Inservice Testing Programs", dated' April 3, 1989.

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..i . ENCLOSURE F ,

- RELIEF REQUEST: G-7 VALVES: All 10CFR50, Appendix J, test ed containment isolation valves that-serve only a containment isolation function.

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CATEGORY: A and-A/C s CODE CLASS ' 1 and 2

~ FUNCTION: Containment Isolation ,

t TEST REOUIREMENTE: Corrective action in accordance with Subsection IWV- l 3427(b).

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7 BASIS FOR RELIEF: The corrective action requirements of IWV-3427(b) are i not practical. Industry testing experience has shown' '

leakage rate data trended over a period of time is of' l- little meaningful use, because valve leakage failures are sporadic'and cannot be predicted using trending l techniques based on the biannual testing' frequency >

specified in IWV-3422.- Strict adherence to this L requirement would prove to be an excessive operational I

burden, since corrective action leakage testing could W require a' plant shutdown, and the=resulting additional test data would be of little value in predicting an -

imminent valve failure.

Additionally, Generic Letter 89-04, Guidance on-Developing Acceptable Inservice Testing-Programs, Attachment 1, Position 10, specifies-that the usefulness ,

of IWV-3427(b) does not justify'the burden of complying

? with this-requirement.

ALTERNATE ~ TESTING: No alternate trending of containment. isolation valves will be performed. This relief request complies with i

-the~ intent of Position 10 of NRC Generic Letter 89-04, '

Guidance on. developing Acceptable Inservice Testing Programs, dated April 3, 1989.

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