ML20071F828
| ML20071F828 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 06/30/1994 |
| From: | Hunger G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20071F833 | List: |
| References | |
| NUDOCS 9407110187 | |
| Download: ML20071F828 (7) | |
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ttstion Support Depertrnant 10 CFR 50.90 A
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PECO ENERGY sa
,4rs No;It in Group ividaaart 9% Cheotorbrook Boulewd Wayne PA 19007 M91 June 30,1994 Docket Nos. 50-352 50-353 License Nos. NPF-39 NPF-85 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555
SUBJECT:
Limerick Generating Station, Units 1 and 2 Technical Specifications Change Request No. 94-16-0 Gentlemen:
PECO Energy Company is submitting Technical Specifications (TS) Change Request No. 94-16-0, in accordance with 10 CFR 50.90, requesting an amendment to the TS (Appendix A) of Operating License Nos. NPF-39 and NPF-85 fnr Limerick Generating Station (LGS), Units 1 and 2, respectively. This proposed change will relocate selected recirculation and control rod block Instrumentation setpoints from TS Table 3.3.6-2, and Section 3/4.4.1 to the Core Operating Limits Report (COLR), thereby revis;ng TS Section 6.9.1.9 to document relocation of these items into the COLR. Information supporting this Change Request is contained in Attachment 1 to this letter, and the proposed replacement pages for the LGS Units 1 and 2 TS are contained in Attachment 2.
We request that, if approved, the amendment to the LGS Units 1 and 2 TS be issued on September 1,1994, and be made effective immediately upon issuance.
If you have any questions, please do not hesitate to contact us.
Very truly yours, a
A.
G. A. Hunger, Jr.,
Director - Licensing Attachments cc:
T. T. Martin, Administrator, Region I. USNRC - w/ attachments N. S. Perry, USNRC Senior Resident inspector, LGS - w/ attachments R. R. Janati, Director, PA Bureau of Radiological Protection - w/ attachments a
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9407110187 940600 PDR ADOCK 05000352 g\\
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COMMONWEALTH OF PENNSYLVANIA
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COUNTY OF CHESTER W. H. Smith, lil, being first duly sworn, deposes and says:
That he is Vice President of PECO Energy Company; the Applicant herein; that he has read the foregoing Application for Amendment of Facility Operating Ucense Nos. NPF-39 and NPF-85 (Technical Specifications Change Request No. 94-16-0), to relocate selected recirculation and control rod block instrumentation setpoints from Technical Specifications to the Core Operating Limits Report, at Limerick Generating Station, Units 1 and 2, and knows the contents thereof; and that the statements and matters l
l set forth therein are true and correct to the best of his knowledge, information and 1
belief.
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l Vice Presideht Subscribed and sworn to ap>--
before me this:Mf day of W T994.J (c, f l.
dC0cN2NWNnt
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Notary Public eenAsYdrYIvynue J#E?sllINLs
ATTACHMENT 1 LIMERICK GENERATING STATION UNITS 1 AND 2 Docket Nos. 50-352 50-353 License Nos. NPF-39 NPF-85 TECHNICAL SPECIFICATIONS CHANGE REQUEST t
l No. 94-16-0
" Relocation of Selected Recirculation and Control Rod Block Instrumentation Setpoints from Technical Specifications L
to the Core Operating Limits Report."
Supporting Information for Changes - 4 pages l-i
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Docket Nos. 50,352 50 353 License Nos. NPF 39 NPF-85 1
1 PECO Energy Company, Uconsee under Facility Operating Uconso Nos. NPF-39 and NPF-85 for Limerick Generating Station (LGS), Units 1 and 2, terpectively, requests that the Technical Specffications (TS) contained in Appendix A to the Operating Ucense be amended as proposed herein, to relocate selected recirculation and control rod block Instrumentation sntpoints from (S Tabfo 3.3.6-2 and Section 3/4.4.1 to the Core Operating Limits Report (COLR), thereby revising TS Section 6.9.1.9 to document rolocation of these items into the COtA The proposed (;hangen to the TS are Indicated by the vertical bars in the margin of the TS pagos 3/4 340a,3/4 4 2 and 610a. The TS pages showing the proposed changes are contained in Attachment 2.
Since these TS changes will result in significant savings to PECO, wrv request that, if approved, the amendments to the LGS Units 1 and 2 TS be issued on September 1,1994, and be made effective immediatoly upon issuance.
This TS Chat;ge Request provides a discussion and descriptien of the proposed TS changes, a safety assessment of the proposed TS changes, information supporting a finding oV No Significant Hazards Consideration, and intnrmation eupporting an Environmental Assesament.
Discussion and Dos ristion of the Prooosed Changes The proposed Technicai Specifications (TS) Change Request involvec the change of the LGS Reactor Coolant Recircu;ation System and Control Rod Block Instrumentation Technical Specifications (Le.,
Section 3/4.4.1 and Table 3.3.6-2) to move the setpoint values for the recirculation pump Motor Generator (MG) set mechanical and electrical stops and the control rod block Instrumentation reactor coolant system recirculation flow upscale trip to the Core Operating Umits Beoort (COLR).
iAoving these setpoint values to the COLR will at ow cycle dependant changet to be made without application 'or a TS amendment These astpolt't values cr.n then be changed from cycle to cyclo and -
within an operating cyc!o to maxim {ze thermal marD ns. TS Section 6.9.1.0, " Core Operating Umits i
Report," must also be changed to reflect the addition of these setpoMt values to the COLR.
Technical Specification Section 3/4.4.1. "RocPculat on System - Racirculatbn Loops," paragraph 4.4.t.1.2, states:
"Each pump MG set scoop tube m6 char.ical and electrical stop shall be dernonstrated OPERABLE with overspeed sotpointi less than or equal to 1C9% and 107%, respectively, of rated core flow, at least once pw 24 months."
With the advent of Average Power Range Monitor - Rod Block Munitor Technk.at Specifications /Meximum Etonded Load Line Lirtst Analysis (ARTS /MELLLA), in *:onjunction with I
increased Cors Flow (ICF), a single, cycle independent set of overspeed setpoints may deny the core designer and plant 1 perator a method to ensure a comfortable operating margin while optimizing core /!uol cycle design. To obtain this f!exlDility, it is tccommended thet TS Section 3/4.4.1 be changed to place the sutsject setpo!nt values in the COLR. With the setpoint values in the COLR, TS Section 3/4.4.1 wou(d read:
1 "Each pump MG set scoop tube mechanical and electrical Stop shall be demonstrated OPERABLE with overspeed setpoints less than or equal to the setpoints as noted in the CORE OPERATING LIMITS REPOHT, as a percentage of rated core flow, at least once per 24 months."
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Docket Nos. 50 352 50-353 Ucense Nos. NPF 39 NPF-85 The proposod changes will relocate the recirculation pump MG set mechanical and electrical overspeed -
stop setpoints from TS Section 3/4.4.1 to the COLR.
Technical Specifications Tabl i 3.3.6-2, " Control Rod Block 1.istrumentation Setpoints", will als t ce tev)wJ to remove the trip setpoint and &lowable value for the Rsactor Coolent Systgm Recirculatku, few -
3 Uptcale from the TS and to tr.for to COLR for these setpoints.
Technical Specificatlo is Section 6.9.1.0, " Core Operating Umi:s Report", ll,ts the values taaf cre y
documented within the report. Paragraphs g. and h. should bs sdded to document the reotdon of the i
recirculation pump MG sat mechar Acal and electrical overspeed stop setpoints from TS Sectior 3/4.4.1 and the control rod block ' low tCscale trip setpoint and Milowable value from TS Table 3.3E2 into the COLR.
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The Beactor Cootant System Recirculation Flow upscale trip setpoin: and allowable value for Specifletion 3.3.6,.
h.
The f ecirculation MG set mechanical and electrical overspeed stop setpoints for Specification 4.4.1.1.?."
Whereas LGS Valt 2 currently does not operate with ARTS /MEl.LLA, a sa nitar chang 7 can be made at this time to Unit 2 TS to preserve continti'ty of steps md slmliar!ty between 'Init 1 and Unit 7 TS until ARTS /MELLLA is implemented at LGS Ualt 2. The oni/ difference (for Unt 2 'S) to the charsge delineated above is in Tochtdc1! Specifica@n Section 6.9.1.9 (1.e.. added pami raphs g. end h. should bo identiflod a f. and g. respective'y).
Tinrefore, we pmpose mat TS Table 3.3.0-2, Sec'lons 3/4.4.1 and 6.9.1.9 be changed to ref!eci the relocation of selected retirculation and control rod b'ock instrurnentation setpoints from the TS to the COLR.
33 ety Assessment f
The proposed TS changes are administrative in nature. The relocation of selected recirculetion and control rod block 'nstrumentation setpoints from the TS to the Core Operating Umb Repox (COLit),
dces not impact the associated TS Umiting Conditions for Operation (LCOs), surveillance requirements end setpoint values These changes do not affect existing accident analyses or design assumptions, nor do they impact any safety limits of the plant. Safety-related plant equipment such as the ftW, reactor -
vessel and recirculation system equipment remains unchanged. Moving these setpoints td the Cola w% -
allow cycle dependent changes to b3 made without a TS amendment.
Information Suocortino a Findina of No Stan.ificant Hazards CorvideratioD We have concluded that the proposed changes to the Limerick Generatir g Station (LGS), Units 1 and 2, -
I Technbal Specificatloas (TS), which win re'ocate selocted recirculation and control rod block lostrumentation setpolats from TS Table 3.3.S2 and dection 3/4.4.1 to tho Core Opsating Umh llmort (C01 R), thereby revising TS Section 0.9.1.9 to docurqent relocation of these !! ems !nto the COLB, do not involve a Significant Hazards Consideration in support of this deterrahntlnt', an avaluation of each of a
the three (3) standards set forth in 10 CFR 50.92 is provided below.
2-L.
Docket Nos. 50-352 so.3s3 Uconso Nos. NPF 39 NPF-85 t.
The crocosed Technical Soecifications (TS) chanaes do not invoivo a slanificant jngrease in the orobability or consecuences of an accident oreviousiv evaluated.
The TS chango proposed is the relocation of the recirculation pump Motor-Generator (MG) set mechanical and electrical stop and control rod block recirculation flow upscale trip setpoint values to the COLR. No physical plant equipment change is proposed.
The TS requirements for the sotpoints and the associated curveillance requirements
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remain unchanged. Only the location of the setpoh,1 values will be changed. The subject setpoint values will become cyclo dependant and will be determined by NRC approved methods, as are the bath ce of setpoints and thormal limits found it, the C
COLR. However, the subject setpoint values are not c.1odiflod e,$ part of this TS change.
Therefore, the prooosed TS change 12:ss @ km 'a an incrix en 4,. 6.blmy or
- j consequences of an accident p:wlot: sly i s Me s.
2, The crocosdj TS chqnges do 0fL'.f.0010_Lb _D.Q3p?f[lt10, a nog diffstent kina of f
accident from any accident orrhi 3!A. evaluated.
The TS changos p%,'osed are the relocation of 1% (Girculatkan pump MG set mechanical and taw & Tl stop and control rod block tectrauldi si!!ov % scale trip dpdnt velues to us Cd th physical plant <!quipmont change is para of he a
proposed TS changes. Th, TS LCOs and survellarno requirements remain une, anpod.
The oid change nroposed is tht. ro!ocelo't af the subject setpoint values as noted uka hese C.x Int values inve been eaterm:ned in accorQ :o with previously NRG approved niethods and assure stificier t cporatirt maralns,n accordance with exidFO core design met"odologp Therefore, the proposed TS chhnDet di not creath(f.J possibility of a now or ddtorent kind of acc%nt from any previout evaluated.
a 3
Jho orocosed TS chanaes do not involve a slanif: cant reduction in eInatoin af safety.,
K The following TS BASES were reviewed for potential reduction in the margin of safoty:
3/4.2 Power Distribution Limits 3/4.3.6 Control Rod Block Instrumentation 3/4.4.1 Rocirculation System E
The margin of safety, as defined in the TS BASES, will not be reduced. The proposed TS changes do not affect existing accident analyses er design assumptions, nor do they F.
Impact any safety Dmits of the plant, since they are administrativo in nature.
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Therefore, the proposed TS changes do not invot"e a reduction in a margin of safety.
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i' DoclC3 Nos. 50 352 50 353 License Nos. NPF 39 NPF45 r
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lfl00Ba@!!L$pppotilrlp A,tffjykanmental AssesstneDJ f
r An environmontal assessment is mt required for the changes proposed by this Change Request because the requestod changos to the Umorick Generating Station (LGS), Units 1 and 2 TS conform to the critoria for ' actions oligible for categorical exclusion,' as specified in 10 CFR 51.22(c)(9). The requestod changes will have no impact on the environment, The proposed changes do not involve a significant hazards consideration as discussed in the procoding section. The proposed changes do not involve a significant change in the types or significant increase in the amounts of any effluents that may be releasod offsito. In addition, the proposod changes do not involvo a significant increase in individual or cumulative occupational radiation exposure, f00th!$10D The Plant Operations Review Committee and the Nuclear Review Board have reviewed those proposod changos to the Limerick Gorerating Station (LGS), Units 1 and 2 TS and have concluded that they do not involve an unreviewod satoty question, and will not ondangor the hocith and safety of the pubtle.
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