ML20140D965
| ML20140D965 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 04/17/1997 |
| From: | NORTHEAST NUCLEAR ENERGY CO. |
| To: | |
| Shared Package | |
| ML20140D963 | List: |
| References | |
| NUDOCS 9704250008 | |
| Download: ML20140D965 (14) | |
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Docket No.' 50-423 B16355 j
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Millstone Nuclear Power Station Unit No. 3 Proposed Revision to Technical Specification Area Temperature Monitoring (PTSCR 3-08-97)
NNECO's Commitments I
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i April 1997 l-9704250008 970417 PDR ADOCK 05000423 P
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. ; ' U',S. Nuclear Regulatory Commission -
B16355\\ Attachment 1\\Page 1
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Enclosure List of Regulatory Commitments The.following table identifies those actions committed to by NNECO in this document.
. Any other actions discussed in the submittal represent intended or planned actions by i
NNECO. They are described to the NRC for the NRC's information and are not I
Please notify the Manager
- Nuclear Licensing at the
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Millstone Nuclear Power Station Unit No. 3 of any questions regarding this document or 1
any associated regulatory commitments.
Commitment Committed Date or Outage NONE N/A 3
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Docket No. 50-423 B16355-l 6
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r Millstone Nuclear Power Station Unit No. 3 Proposed Revision to Technical Specification F
Area Temperature Monitoring j
-(PTSCR 3-08-97)
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Marked Up Paae 1
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.; ' O.S. Nuclear Rcgulatory Commission B16355\\ Attachment 2\\Page 1 MARKUP OF PROPOSED CHANGE Refer to the attached markup of the proposed change to the Technical Specifications.
The attached markup reflects the currently issued revision of the Technical Specifications listed below. Pending Technical Specification changes or Technical Specification changes issued subsequent to this submittal are not reflected in the enclosed markup.
The following Technical Specifications change is included in the attached markup:
Technical Specification 3.7.14 Action statement is being revised to indicate that it is applicable whenever the temperature limit is greater than or equal to 20 F:
3.7.14, Action c Technical Specification 3.7.14 Action statement is being revised to indicate that it is applicable whenever the duration is greater than or equal to 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />s:
3.7.14, Action b 1
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January 3,1995 1
i PLANT SYSTEMS i
3/4.7.14 AREA TEMPERATURE N0NITORI$14 i
l LIMITING CONDITION FOR OPERATION l
l 3.7.14 The temperature limit of each area shown in Table 3.7-6 shall not be exceeded.
APPLICABILITY:
Whenever the equipment in an affected area is required to be 3
j OPERABLE.
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EIIDH:
With one or more areas exceeding the temperature limit (s) shown in Table 3.7-6:
a.
By less than 20*F and for less than 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, record the cumulative l-time and the amount by which the temperature in the affected area (s)
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exceeded the limit (s).
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b.
By less than 20*F and fo than 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, prepare and submit to the Conmiission within 30 s, pursuant to Specification 6.9.2, a Special Report that provides a record of the cumulative time and the amount by which the temperature in the affected area (s) exceeded
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the limit (s) and an analysis to demonstrate the continued OPERABILITY of the,affected equipment.
The provisions of Specificatio 3.0.3 are not cable.
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c.
With one re reas exceecing the temperature limit (s) shown in Table 3.7-6 by than 20'F, prepare and submit a Special Report as required by TION b. above and within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> either restore the area (s) to within the temperature limit (s) or declare the equip-3 l
ment in the affected area (s) inoperable.
SURVEILLANCE REQUIREMENTS l
i J-1 4.7.14 The temperature in each of the areas shown in Table 3.7-6 shall be determined to be within its limits:
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a.
At least once per seven days when the alam is OPERABLE, and; b.
At least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> when the alarm is inoperable.
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NILLSTONE - IMIT 3 3/47-32 Amendment No. 77, 75 100 3-eam I
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i Docket No. 50-423 B16355 i
4 Millstone Nuclear Power Station Unit No. 3 Proposed Revision to Technical Specification Area Temperature Monitoring (PTSCR 3-08-97)_.'
Retvoed Paae I
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i April 1997 ll.
- O.S. Nuciaar Regulatory Commission B16355\\ Attachment 3\\Page 1
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4 RETYPE OF PROPOSED CHANGE Refer to the attached retype of the proposed change to the Technical Specifications.
. The attached retype reflects the currently issued version of the Technical 1
Specifications. Pending Technical Specification changes or Technical Specification changes issued subsequent to this submittal are not reflected in the enclosed retype.
The enclosed retype should be checked for continuity with Technical Specifications prior to issuance.
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PLANT SYSTEMS 3/4.7.14 AREA TEMPERATURE N0NITORIM LIMITING COMITION FOR OPERATION l
3.7.14 The temperature limit of each area shown in Table 3.7-6 shall not be exceeded.
APPLICABILITY:
Whenever the equipment in an affected area is required to be OPERABLE.
ACTION:
With one or more areas exceeding the temperature limit (s) shown in Table 3.7-6:
a.
By less than 20*F and for less than 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, record the cumulative time and the amount by which tha temperature iri th affected area (s) exceeded the limit (s).
b.
By less than 20*F and for greater than or equal to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, prepare l and submit to the Commission within 30 days, pursuant to Specification 6.9.2, a Special Report that provides a record of the cumulative time and the amount by which the temperature in the affected area (s) exceeded the limit (s) and an analysis to i
demonstrate the continued OPERABILITY of the affected equipment.
The provisions of Specification 3.0.3 are not applicable.
c.
With one or more areas exceeding the temperature limit (s) shown in Table 3.7-6bygreaterthanorequalto20'F,prepareandsubmital Special Report as required by ACTION b. above and within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> either restore the area (s) to within the temperature limit (s) or declare the equipment in the affected area (s) inoperable.
SURVEILLANCE REQUIREMENTS 4.7.14 The temperature in each of the areas shown in Table 3.7-6 shall be determined to be within its limits:
a.
At least once per seven days when the alarm is OPERABLE, and; b.
At least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> when the alarm is inoperable.
MILLSTONE - UNIT 3 3/4 7-32 Amendment No. 77. PJ, 199.
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-r Docket No. 50-423 B16355 i
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Millstone Nuclear Power Station Unit No. 3 i
Proposed Revision to Technical Specification Area Temperature Monitoring (PTSCR 3-08-97)
Backaround and Safety Assessment i
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April 1997 i
0.S. Nucirr Regulatory Commission B16355\\ Attachment 4\\Page 1 Backar'ound Technical Specification 3.7.14 requires that temperature within various areas of the plant be limited to ensure that the applicable systems, structures and components are operated within their existing design bases. Action statement a. specifies the actions to be taken when an area temperature exceeds its limit by "less than 20 F and for less than 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />". Action statement b. currently specifies the actions to be taken when an area temperature exceeds its limit by "less than 20 F and for more than 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />".
Action statement c. currently specifies the actions to be taken when an area temperature exceeds its limit by "more than 20 F". The actions to be taken when an area temperature is exceeded by exactly 20 F is not defined nor is the action to be taken when the duration is exactly 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />. This wording change will correct these discontinuities by including the " equal to 20 *F" with the "more than 20 F" actions in action statement c, and by including the " equal to 20 "F" with the "more than 20 F Safety Assessment Technical Specification 3.7.14 action statements a and b require: a) that the cumulative time and the amount by which the temperature in the affected area exceeded the limited be recorded; and b) that a report be prepared and submitted to the Commission, pursuant to Technical Specification 6.9.2, detailing the cumulative time and the amount by which the temperature'in the affected area exceeded the limited, along with an analysis to demonstrate the continued operability of the affected equipment within 30 days. Technical Specification 3.7.14 action statement c additionally requires that the area be restored to within its temperature limit within four (4) hours or the equipment contained within the effected areas be declared inoperable.
This proposed change:
ensures that action is designated for the condition when area temperature exceeds the limit by exactly 20 F.
causes the more restrictive actions to be implemented when area temperatures are
" greater than or equal to 20 F" more than the specified limit rather than when the area temperature is " exceeding the temperature limit... by more than 20 F" ensures that action is designated for the condition when area temperature exceeds e
the limit for a period exactly equal to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
causes the more restrictive actions to be implemented when area temperature exceeds the limit for a podod greater than or equal to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> rather than when the area temperature is " exceeding the temperature limit.. for more than 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.. "
does not change the operation of any system or system component during normal or e
accident evaluations.
.: ' O.S. Nucl:ar R:gulatory Commission
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B16355\\ Attachment 4\\Page 2 considered safe because it will not result in the plant being operated in an unsafe e
condition, decrease available safety margins, nor adversely impact the consequences of an accident. It will cause no increase in the risk to the public health or safety. It does not increase either the probability of event occurrence, the probabiluy of human errors mitigating the event, the probability of the failure of mitigating equipment, nor does it introduce any new accidents or equipment malfunctions.
Based on the above, the proposed Technical Specification change is safe and has been determined not to involve an unreviewed safety question.
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Docket No. 50-423 B16355 Millstone Nuclear Power Station Unit No. 3 Proposed Revision to Technical Specification Area Temperature Monitoring (PTSCR 3-08-97)
Sianificant Hazards Consideration and Environmental Considerations 1
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April 1997
i 0.S. Nuclear Regulatory Commission
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Si_anificant Hazards Consideration NNECO has reviewed the proposed change in accordance with 10CFR 50.92 and has concluded that the change does not involve a significant hazards consideration (SHC).
The bases for this conclusion is that the three criteria of 10CFR 50.92(c) are not satisfied. The proposed change does not involve a SHC because the change would not:
1.
Involve a significant increase in the probability or consequence of an accident previously evaluated.
The proposed change to Technical Specification 3.7.14 will establish allowable tolerances to ensure that the applicable systems, structures and components are operated within their existing design bases.
Technical Specification 3.7.14 specifies the actions to be taken when an area temperature exceeds its temperature limit. The action taken is dependent on the amount and duration by which the area temperature exceeds its limit. Actions are currently specified for exceeding area temperature by less than 20 F and greater than 20 F for periods less than 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> and for periods greater than 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />. This change clarifies the actions to be taken when the temperature exceeds its limit by exactly 20 F or exceed its limit for exactly 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />. It is concluded that this change is a clarification only in that it causes the more conservative actions to be taken at greater than or equal to 20 F, or at greater l
than or equal to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
The proposed change, therefore, does not involve a significant increase in the probability or consequence of an accident previously evaluated.
2.
Create the possibility of a new or different kind of accident from any accident j
previously evaluated.
Establishment of tolerances and clarification of actions at a specific value does not does change the operation of any system, structure or component during normal or accident conditions.
Therefore, the proposed change does not create the possibility of a new or different kind of accident from any accident previously evaluated.
3 Involve a significant reduction in a margin of safety.
The change is administrative in nature in that it resolves a discontinuity in the range of temperatures and in the duration period above the applicable limit for
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B16355\\ Attachment 5\\Page 2 which action is required. Establishment of tolerances ensures parameters are set and maintained within allowable design constraints.
Clarification of i
applicability for the required actions ensures that action is proscribed for all i
possible conditions thereby not permitting operation outside of allowable design.
Therefore, the proposed change does not involve a significant reduction in a margin of safety, in conclusion, based on the information provided, it is determined that the proposed change does not involve an SHC.
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Environmental Considerations i
NNECO has reviewed the proposed license amendment against the criteria of 10CFR 51.22 for environmental considerations. The proposed change does not involve a SHC, i
does not significantly increase the type and amounts of effluents that may be released offsite, nor significantly increase individual or cumulative occupational radiation exposures. Based on the foregoing, NNECO concludes that the proposed change meets the criteria delineated in 10CFR 51.22(c)(9) for categorical exclusion from the requirements of an environmental considerations.
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