ML20237B631

Forwards Rev H as Final Package Closeout of Improved Tech Specs (ITS) Section 3.5,originally Submitted on 961231.Revs Are Being Provided in Same ten-section Format as Initial ITS Submittal

ML20237B631
Person / Time
Site:	Byron, Braidwood
Issue date:	07/30/1998
From:	Tulon T COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
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ML20237B634	List: ML20237B631 ML20237B639
References
NUDOCS 9808190118
Download: ML20237B631 (22)

Text

_ - _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ - - _ _ _ _ _

. Commonwealth Edison Gim;1any liraidwtx>d Generating Station Itoute el, Itox 8 4

~ liracesille. II.G)io7%I9 Tel Hi%l542801 July 30,1998 United States Nuclear Regulatory Commission Attn: Document Control Desk Washington D.C. 20555 - 0001

Subject:

Revision H to the Improved Technical Specifications (ITS) Submittal-ITS Section 3.5 Closeout Byron Nuclear Power Station, Units 1 and 2 Facility Operating Licenses NPF-37 and .NPF-66 NRC Docket Numbers: 50-454 and 50-455 Braidwood Nuclear Power Station, Units 1 and 2 Facility Operating Licenses NPF-72 and NPF-77

. fm NRC Docket Numbers: 50-456 and 50-457 V

Reference:

G. Stanley and K. Graesser (Commonwealth Edison) letter to NRC Document Control Desk, " Conversion to the Improved Standard Technical Specifications," dated December 13,1996 The purpose of this letter is to provide Revision H to the Referenced ITS submittal. ITS Revision H contains Commonwealth Edison's (Comed's) final Package Closecut for ITS Section 3.5.

Enclosure 1 contains ITS Revision H. Attachment I contains Comed's final RAI Responses to Section 3.5. Any revised response is noted along with the original response. As requested by the Staff, Attachment 2 contains an affected page list identifying submittal pages that have changed as a result ofincorporating RAI responses.

l Attachment 3 contains an affected page list summarizing all submittal pages that have l changed in ITS Revision H.

\

I C,,

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mem o,m,1a, L___._______________-.__.___

E .

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Document Control Desk

' July 30,1998 .

l. p'v. Page 2 L

l l These Revisions are being provided in the same ten-section format as the initial ITS -

submittal:'

l'

l. ByronITS

2. Braidwood (Brwd)lTS -

3. Byron CTS Markups

4. Brwd CTS Markups

5. CTS Discussion of Changes (DOCS)

6. LCO Markups l

. 7. LCO Justification for Differences (JFDs)

L

8. - Bases Markups j 9. Bases JFDs

10. No Significant Hazards Consideration (NSHC)

Please address any comments or questions regarding this matter to our Nuclear Licensing Department.

l.

O. Sincerely,

'/ !ad Timothy J. Tulon Site Vice President .

Braidwood Nuclear Generating Station

Enclosure:

ITS Revision H l

. Attachments: Attachment 1 -ITS Section 3.5 RAI Revised Responses u Attachment 2 -ITS Section 3.5 RAI Affected Page List j Attachment 3 -ITS Section 3.5 Section Closcout Affected Page List -

E cc: NRC Regional Administrator - Region III .

Senior Resident Inspector - Braidwood l Senior Resident Inspector - Byron Office of Nuclear Facility Safety -IDNS '

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4 ATTACHMENT 1 ITS SECTION 3.5 RAI REVISED RESPONSES 9

O O

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Response to NRC RAI Fer ITS S:ctinn 3.5 30-Jul-98 NRC RAI Number NRC lssued Date RAI Status

/N 3.5-01 11/5/97 Closed

' (U) NRC Description ofIssue

! JFD C2 ITS 3.5.1 Applicability WOG-81 WOG-81 proposes to modify the Applicability statements throughout the STS and is proposed for adoption in the ITS. This generic change is not approved. Comment: Revise all Applicability statements affected by WOG-81 to conform to the STS.

This is a global comment.

Comed Response to issue WOG-81 was withdrawn in its entirety throughout the ITS submittal. The submittal was revised to adopt the STS presentation in the Applicability Section. (See RAls 3.1.5-02,3.4-01,3.7.10-03,3.7.11-02,3.7.13-06,3.8.2-02,3.9.4 06, and 3.9.7-05.)

NRC RAI Number NRC issued Date RAI Status 3.5.1-01 11/5/97 Closed NRC Description of Issue DOC A7 JFD B4 CTS 4.5.1.1.b ITS SR 3.5.1.5 CTS 4.5.1.1.b refers to na accumulator solution volume increase of 70 gallons. Corresponding ITS SR 3.5.1.5 propost *o utilize 10% ofindicated level instead. No calculation is provided to demonstrate that 10% ofindicated level is equivalent

[: (j to 70 gallons. Comment: Revise DOC A7 to demonstrate that 10% indicated level is equivalent to 70 gallons.

Comed Response to issue

]

Section 3.5 DOC A7 was revised to read, " CTS SR 4.5.1.1.b requires the accumulators be sampled after each volume I increase of greater than or equal to 70 gallons. Currently, when filling the accumulators per the operating procedures, the i accumulators are conservatively required to be sampled after each fill to ensure compliance with this SR. ITS SR 3.5.1.5 )

will require verifying the boron concentration of the accumulator solution once within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> after each solution volume I increase of greater than or equal to 10% ofindicated level which is equivalent to 70 gallons. The nominal water volume of the SI Accumulators is 7106 gallons based on the minimum and maximum volumes of 6995 gallons at 31% indicated level (low level alarm) and 7217 gallons at 63% indicated level (high level alarm). This change in volume is equal to 222 gallons over a 32% level span otapproximately 7 gallon per % leveli:hange. The 0% level equivalent is 6781 gallons and the 100%

level indication is 7466 gallons equaling a total change of 685 gallons over the 100% indicated level span or 6.85 gallons per l  % level change. This would equal a 10.2% indicated level increase for a 70 gallon volume increase in the SI Accumulator.

The expression for volume has been changed from gallons to an equivalent percent indicated level to be consistent with the indication available to the operator and the manner in which the increase in volume is verified. This change is perceived as i the intent of the CTS wording, is considered editorial in nature and does not involve a technical change (either actual or )

interpretational) to the TS. This change is consistent with NUREG-1431." j

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Rcsponse ts NRC RAI Fer ITS S:ction 3.5 30-J ui-98

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NRC RAI Number NRC Issued Date RAI Status

/T .3.5.2-01 11/5/97 Closed NRC Description ofissue DOC LA6 -

CTS 3.5.2 footnote

• ITS LCO 3.5.2 Note 2 Bases discussion for ITS LCO 3.5.2, STS markup page B 3.5-14 Bases insert B 3.5 14A CTS 3.5.2 footnote

• requires the accumulators to be Operable during Mode 3 with pressurizer pressure < 1000 psig whenever isolation valves SI8809A or S18809B are closed. It has been proposed to move this requirement to the TRM and i to replace it with a requirement to provide an alternate means of cold leg injection for each isolated flow path. DOC LA6

. states that establishing accumulator Operability during this condition is not important provided an alternate means of '

establishing cold leg injection is established. Comment: Revise the Bases to state what the acceptable alternative means of cold water injectic . are, including Operable accumulators.

)

Comed Respo= e to Issue )

The LCO Sec' in of the Bases for ITS LCO 3.5.2 has been modined to add the statement, "An alternate means may include:

1) OPERAP 2 accumulators with their isolation valves either closed, but energized, or open; 2) cold leg injection via the Safety inj~ , ion pumps, and the S18821 A/B and the S18835 valves; or 3) cold leg injection via the Centrifugal Charging a pumps and the S18801 A/B valves." In addition, Section 3.5 DOC LA6 has been revised to relocate the available alternate means of cold leg injection for each isolated flow path to the Bases vice the TRM.

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NRC RAI Number NRC issued Date RAI Status 1

3.55-01 11/5/97 Closed - j

! ,e m - NRC Description ofissue

() \

i DOC L8 CTS 3/4.4.6.2 Action b ITS 3.5.5 Action B in the event reactor coolant system leakage is above limits and is not restored to within limits in 4 bours, CTS 3/4.4.6.2 Action b requires being in Cold Shutdown (Mode 5) within 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> after reaching Hot Standby (Mode 3). Corresponding Action B ofITS 3.5.5 requires being in Mode 3 in 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and Mode 4 in 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />; it does not require entry into Mode 5.

The CTS markup shows this change is addressed by DOC L8, which by focusing on the deletion of Mode 4 from the l Applicability, covers the change to Mode 4. However, L8 does not address the Completion Time change to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />, which l is hard to characterize because the CTS do not stipulate whertMode 4 must be entered, only that Mode 5 must be entered within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> after entering Mode 3. Comment: Revise DOC L8 to address the change in Completion Time.

Comed Response to issue-Section 3.5 DOC L8 has been revised to state, " CTS LCO 3.4.6.2 requires the Applicability of the seal injection Gow ,

requirements in Modes 1,2,3, and 4. In addition, the LCO and SR references various conditions for exiting the Mode of '

Applicability and exceptions to Specification 4.0.4 for entry into Mode 3 and 4. ITS LCO 3.5.5 requires the Applicability of the seal injection flow requirements in Modes I,2, and 3. The CTS has been revised to eliminate the Mode 4 seal injection flow requirements. This change is acceptable since high seal injection flow is less critical as a result of the lower initial RCS

~

pressure and decay heat removal requirements in Mode 4. In Modes 1,2. and 3, the seal injection flow limit is dictated by ECCS flow requirements. Therefore, RCP seal injection flow is limited in Modes 1,2, and 3 to ensure adequate ECCS i performance and changing the Mode of Applicability is acceptable. Changing the Applicability to Modes I,2, and 3 1 changed the Completion Time to exit the Mode of Applicability from 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> to be in Mode 5 to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> to be in Mode 4.

The Completion Time of 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> to be in Mode 4 is consistent with both the CTS and the ITS Completion Times used throughout the specifications for placing the unit in Mode 4, including LCO 3.0.3. This change is consistent with NUREG-1431. See Discussion of Change M2 for discussion of the Mode 3,4.C.4 exception." Comed continues to pursue this

. A, ,

change

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ENCLOSURE 1 O .

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