ML20069M816

Proposed Tech Specs Re Core Exit Thermocouples

ML20069M816
Person / Time
Site:	Prairie Island
Issue date:	06/15/1994
From:	NORTHERN STATES POWER CO.
To:
Shared Package
ML20069M772	List: ML20069M766 ML20069M796 ML20069M816
References
NUDOCS 9406220151
Download: ML20069M816 (9)

Text

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Exhibit B Prairie Island Nuclear Generating Plant June 15, 1994 Revision to License Amendment Request Dated January 29, 1993 Proposed Changes Marked Up On Existing Technical Specification Pages Exhibit B consists of existing Technical Specification pages with the original proposed changes and all revisions highlighted on those pages. The existing l pages affected by this License Amendment Request are listed below:

TS.3.15-1 E.3.15-1 l

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TS.3.15-1 REV 91 10/27/84 3.15 EVENT MONITORING INSTRUMENTATION Applicability Applies to plant instrumentation which does not perform a protective func-tion, but which provides information to monitor and assess important parameters during and following an accident.

Obiective To ensure that sufficient information is available to operators to deter-mine the effects of and determine the course of an accident to the extent required to carry out required manual actions.

Specification A. Process Monitors

1. The event monitoring instrumentation channels specified in Table l

TS.3.15-1 shall be OPERABLE.

2. With the number of OPERABLE event monitoring instrumentation channels, JEEs@thsJ6pMsfit@thWp6260p1hy less than the Required Total Number of Channels shown on Table TS.3.15-1, either restore the i inoperable channels to OPERABLE status within 7 days, or be in at I least HOT SHUTDOWN within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

3) With the number 'of OPERABLE'chann'els' for th'e 'cofe " exit 'thsrmocouples )

less than the Required Total Number'of Channels shown on Table i TS.3.15-1, but with greater than or equal to 4 core' exit thermocouples OPERABLE in the center core region and Sreater than or equal to one core exit thermocouple OPERABLE in each quadrant of,the outside core region, restore the inoperable channels to OPERABLE status within 30 days, or, prepare and submit a Special Report to the Commission pursuant to Technical Specification 6.7.B 2 within the next 14 days outlintng the action taken, the 'cause of the inoperability, and the plans and schedule for restoring the' system to )

OPERABLE status' As a minimum,,the Required Total Number of Channels will be restored p,rior,to,startup,following ,t,he,next refueling putage s

4. With the number 'of OPERABLE' channels 'for the ^ core exit thermocouplen less than the Required Total Number of Channels shown on Table TS.3.15-1, and with either less than 4 core exit thermocouples OPERABLE in the center region or less than one core exit thermocouple OPERABLE in each quadrant of the outside core region, restore the inoperable channels to OPERABLE status within ,7 days, or,be in at least HOT SHUTDORN within,the next 6, hours.,

5. With the number of OPERABLE event monitoring instrumentation channels less than the Minimum Channels Operable requirements of Table TS.3.15-1, either restore the minimum number of channels to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in at least HOT SHUTDOWN within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

l B.3.15-1 REV 91 10/27/89 3.15 EVENT MONITORING INSTRUMENTATION Bases The OPERABILITY of the event monitoring instrumentation ensures that sufficient information is available on selected plant parameters to monitor and assess these variables during and following an accident.

This capability is consistent with the recommendations of NUREG-0578 and NUREG-0737.

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Core exit thermocouple readings necessary to meet the requirements of Specification 3.15.A are available from the Plant Process Computer, the Control Room Core Exit Thermocouple Display or if no other readout is available, from test equipment readings from the Core Exit Thermocouple Junction Boxes.

4

Exhibit C Prairie Island Nuclear Cencrating Plant June 15, 1994 Revision to License Amendment Request Dated January 29, 1993 Revised Technical Specification Pages Exhibit C consists of revised pages for the Prairie Island Nuclear Generating Plant Technical Specifications with'the original proposed changes and all revisions incorporated. The revised pages are listed below:

TS.3.15-1 B.3.15-1

l

. 1 TS.3.15-1 3.15 EVENT MONITORING INSTRUMENTATION Apolicability Applies to plant instrumentation which does not perform a protective func-tion, but which provides information to monitor and assess important parameters during and following an accident.

Obiective To ensure that sufficient information is available to operators to deter-mine the effects of and determine the course of an accident to the extent required to carry out required manual actions.

Specification A. Process Monitors l

1. The event monitoring instrumentation channels specified in Table TS.3.15-1 shall be OPERABLE.

2. With the number of OPERABLE event monitoring instrumentation channels, except the core exit thermocouples, less than the Required l Total Number of Channels shown on Table TS.3.15-1, either restore the l inoperable channels to OPERABLE status within 7 days, or be in at l 1 east HOT SHUTDOWN within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

3. With the number of OPERABLE channels for the core exit thermocouples I less than the Required Total Number of Channels shown on Table TS.3.15-1, but with greater than or equal to 4 core exit thermocouples OPERABLE in the center core region and greater than or equal to one core exit thermocouple OPERABLE in each quadrant of the outside core region, restore the inoperable channels to OPERABLE status within 30 days, or prepare and submit a Special Report to the ]

Commission pursuant to Technical Specification 6.7.B.2 within the l next 14 days outlining the action taken, the cause of the inoperability, and the plans and schedule for restoring the system to OPERABLE status. As a minimum, the Required Total Number of Channels will be restored prior to startup following the next refueling outage.

4. With the number of OPERABLE channels for the core exit thermocouples less than the Required Total Number of Channels shown on Table TS.3.15-1, and with either less than 4 core exit thermocouples i OPERABLE in the center region or less than one core exit thermocouple OPERABLE in each quadrant of the outside core region, restore the inoperable channels to OPERABLE status within 7 days, or be in at least HOT SHUTDOWN within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

5. With the number of OPERABLE event monitoring instrumentation channels less than the Minimum Channels Operable requirements of Table TS.3.15-1, either restore the minimum number of channels to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in at least HOT SHUTDOWN within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

i B.3.15-1 3.15 EVENT MONITORING INSTRUMENTATION Bases The OPERABILITY of the event monitoring instrumentation ensures that sufficient information is available on selected plant parameters to monitor and assess these variables during and following an accident.

This capability is consistent with the recommendations of NUREG-0578 and NUPVC-0737.

The follow ag core exit thermocouples are included in the center cora region refsrenced in Specification 3.15. A.3. If a thermocouple is not listed below, it is located in the outside core region.

Thermocouple Core Number Location 9 D-5 10 D-7 12 E-4 13 E-6 14 E 10 16 F-7 18 G-4 19 G-6 22 H-5 23 H-9 28 I-4 29 I-8 30 I-10 32 J-6 33 J-8 i 34 J-9 Core exit thermocouple readings necessary to meet the requirements of Specification 3.15.A are available from the Plant Process Computer, the Control Room Core Exit Thermocouple Display or if no other readout is available, from test equipment readings from the Core Exit Thermocouple Junction Boxes.

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Exhibit D Prairie Island Nuclear Generating Plant June 15, 1994 Revision to License Amendment Request Dated January 29, 1994 Changes to Technical Specification Pages Since January 29, 1993 Submittal Exhibit D consists of Technical Specification pages submitted by the original January 29, 1993 License Amendment Request marked up to indicate the changes being incorporated into the pages by this revision. The marked up pages are listed below:

l l TS.3.15-1 B.3.15-1 I

l 1

1 I

I I

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TS.3.15-1 3.15 EVENT MONITORING INSTRUMENTATION Applicability j Applies to plant instrumentation which does not perform a protective func-tion, but which provides information to monitor and assess important parameters during and following an accident, i 1

Obiective l To ensure that sufficient information is available to operators to deter-mine the effects of and determine the course of an accident to the extent required to carry out required manual actions.

Specification A. Process Monitors

1. The event monitoring instrumentation channels specified in Table '

TS.3.15-1 shall be OPERABLE.

2. With the number of OPERABLE event monitoring instrumentation channels, except the core exit thermocouples, less than the Required Total Number of Channels shown on Table TS.3.15-1, either restore the inoperable channela to OPERABLE status within 7 days, or be in at least HOT SHUTDOWN within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

3. With the number of OPERABLE channels for the core exit thermocouples less than the Required Total Number of Channels shown on Table TS.3.15-1, but with greater than or equal to 4 core exit thermocouples OPERABLE in the center core region and greater than or equal to-4 6hs! core exit thermocouples OPERABLE in isshl~gysdysht])f the outside core region, restore the inoperable channels to OPERABLE status within 30 days, or prepare and submit a Special Report to the Commission pursuant to Technical Specification 6.7.B.2 within the next 14 days outlining the action taken, the cause of the inoperability, and the plans and schedule for restoring the system to OPERABLE status. AsiaTmihinjdQthb]Rs ciaired[T6 t s1.T Ndinbegs fy Clisnhsly 011l1(bi?Mistbfidjyr16 r.5 to2s t ap tup;Q1l ow thgithW ne x t! r e fu e l ing outaget

4. With the number of OPERABLE channels for the core exit thermocouples less than the Required Total Number of Channels shown on Table TS.3.15-1, and with sithsyjless than 4 core exit thermocouples OPERABLE in either the center E'5jidii7or liis?thiFbhs766fs? skits '

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6 restore the inoperable channels to OPERABLE status within 7 days, or be in at least HOT SRUTDOWN within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

5. With the number of OPERABLE event monitoring instrumentation channels less than the Minimum Channels Operable requirements of Table TS.3.15-1, either restore the minimum number of channels to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in at least HOT SHUTDOWN within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

B.3.15-1 3.15 EVENT MONITORING INSTRUMENTATION Bases The OPERABILITY of the event monitoring instrumentation ensures that sufficient information is available on selected plant parameters to monitor and assess these variables during and following an accident.

This capability is consistent with the recommendations of NUREG-0578 and NUREG-0737.

The following core exit thermocouples are included in the center core region referenced in Specification 3.15.A.3. If a thermocouple is not listed below, it is located in the outside core region.

Thermocouple Core Number I,oca tion 5 C-E 6 C-8 9 D-5 10 D-7 12 E-4 13 E-6 14 E-10 16 F-7 18 G-4 19 G-6 22 H-5 23 H-9 25 " 11 28 I-4  ;

29 I-8 30 1-10 l 32 J-6 33 J8 34 J-9 Core exit thermocouple readings necessary to meet the requirements of Specification 3.15.A are available from the Plant Process Computer, the Control Room Core Exit Thermocouple Display or if no other readout is available, from test equipment readings from the Core Exit Thermocouple  !

I Junction Boxes.