ML19325F400
| ML19325F400 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 11/14/1989 |
| From: | UNION ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML19325F399 | List: |
| References | |
| NUDOCS 8911210176 | |
| Download: ML19325F400 (5) | |
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. ULNRC-2109 i
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PROPS 15p TEGINLchkslKcjyJcATLop CijhNgES.
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Specification 3/4,7.1.2
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- 6 PLANT SY$TEMS
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SURVE!LLANCE REQUIREMENTS (Continued)
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Verifying that e h non-automatic valve in the flow path that is not locked, ealed, or othe mise secured in position is in
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its correct p ition; and the r 4he,n AL-woo, si, M.u k 10 4)
Verifying t at each automatic valve in the flow path is in the fully open position whenever the A iliary Feedwater Systta is placed in d utomatic control or when above 10% RATED THERMAL POWER.
b.
At least onc3 p 18 months during shutdown bv:
A L w v. 5 o 31. H., 6 = % IC-4 s
1)
Verifying ha.each-utomatic v ESW supply to the-auxiliary f umps actua ull open position upon receip an Auxiliary Fe e-Suction Pressure-Low test signal, 2)
Verifying that each auxiliMdwater pu'iiIp startN designed
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automatically upon receipt of an Auxiliary Feedwater Actuation test signal, and 3)
Verifying that each auxiliary feedwater motor-operated discharge valve limits the flow to each steam generator from the motor-driven pump to less than or equal to 320 gpm.
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4.7.1.2.2 An auxiliary feeawater flow path shall be demonstrated OPERABLE following each COLD SHUTDOWN of greater than 30 days prior to entering MODE 2 by verifying normal flow to at least two steam generators from one auxiliary feedwater pump.
l CALLAWAY - UNIT 1 3/4 7-5
a Attcchm:nt 1, P0g3 1 cf 2 i
ULNRC-3109 t
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L SAFETX_EjLA_LjJATJOE r
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i This amendment request revises Technical Specification 3/4.7.1.2, Auxiliary Feedwater System.
The proposed revision adds clarification to Surveillance Requirements 4.7.1.2.1.a(4) and 4.7.1.2.1.b(1) by identifying automatic valves that are either excluded or included in the flow path of the Auxiliary Feedwater (AFW) system whoes position has to be verified to demonstrate L
operability.
i Surveillance Requirement 4.7.1.2.1.a(4) is a demonstration of operability to be performed at least once per 31 days to verify i
that each automatic valve in the AEW system is in the fully open position whenever the AFW is placed in automatic control or when above 10% Rated Thermal Power.
The proposed change adds clarification by identifying that valves AL-HV-30, 31, 32, and 33 are not part of the normal flow path and are not subjected to this operability requirement.
These valves are normally closed i
and open upon receipt of a low suction pressure signal to allow the ESW system to be utilized as a back-up source of water for the AFW system.
Surveillance Requirement 4.7.1.2.1.b(1) is a demonstration of operability to be performed at least once per 18 months to verify that each automatic valve in the ESW supply to the auxiliary feedwater' pumps actuates to its full open position upon receipt of an Auxiliary Feedwater Pump Suction Pressure-Low test signal.
The proposed change adds clarification by identifying that AFW valves AL-HV-30, 31, 32, and 33 are subjected to this operability requirement since they are required to open upon receipt of a low suction pressure signal to allow the ESW system to be utilized as a backup source of water for the AFW system.
The proposed changes to the surveillance requirements will not affect probability of occurrence or the consequences of an c
accident or malfunction of equipment important to safety previously evaluated in the safety analysis report.
In both L
proposed changes the identification of whether or not AFW valves AL-HV-30, 31, 32, and 33 are subjected to the surveillance requirements is for clarification only to assure that their demonstration of operability is associated with the correct surveillance requirement.
The proposed changes to the surveillance requirements will not create the possibility for an accident or malfunction of a different type than any previously evaluated in the safety analysis report.
The proposed changes do not involve changing any setpoints or involve changing how existing equipment is operated.
These changes clarify the intent of the surveillance requirements by indicating which valves are applicable to the individual surveillance requirements, thus avoiding confusion when verifying valve position for demonstrating system operability.
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Attschm0nt 1, Pcg3 2 of 2 ULNRC-2109
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The proposed changes to the surveillance requirements will not affect the margin of safety as defined in the basis for any
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technical specification.
The proposed changes do not alter the manner in which safety limits and limiting safety system setpoints are determined.
The verification of system operability is not reduced or changed in any way.
Based on the above discussions and the considerations presented m
in Attachment 2, the proposed revisions to Technical Specification 3/4.7.1.2 do not increase the probability.of l
occurrence or the consequences of an accident or malfunction of equipment important to safety previously evaluated in the safety t
analysis report; or create a possibility for an accident or malfunction of a different type than any previously evaluated in the safety analysis reports or reduce the margin of safety as 4 defined in the basis for any technical specification.
Therefore, the proposed revisions do not adversely affect or endanger the health or safety of the general public or involve a significant safety hazard.
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T AttCchment 2, Pcg3 1 cf 1 o.
ULKRC-2109 i
s; SIGNIFICANT HA?,ARDS CO!{ SIDERATION This amendment request revised Technical Specification 3/4.7.1.2, Auxiliary Feedwater System.
The proposed revision adds clarification to' Surveillance Requirements 4.7.1.2.1.a(4) and 4.7.1.2.1.b(1) by identifying automatic valves that are either excluded or included in the flow path of the Auxiliary Feedwater (AFW) system whose position has to be verified to demonstrate operability.
1.
The proposed changes to the surveillance requirements do not involve a significant increase in the probability or consequences of an accident previously evaluated.
The proposed changes do not affect the i
ability of the AFW system to perform its intended i
safety function.
The changes are administrative in nature since they merely clarify the demonstration of operability required in the surveillance requirements, i
2.
The proposed changes to the surveillance requirements l
do not create the possibility of a new or different i
kind of accident from any previously evaluated.
There are no new failure modes or mechanisms associated with the proposed changes.
The changes are administrative changes to remove confusion when performing
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surveillance requirements to demonstrate operability.
3.
The proposed changes to the surveillance requirements do not involve a significant reduction in a margin of safety.
These changes do not effect any technical specification margin of safety.
The changes provide clarification for performance of surveillance requirements.
Based on the above discussions and those presented in Attachment 1,
it has been determined that the requested Technical Specification revisions do not involve a significant increase in the probability or consequences of an accident or other adverse condition over previous evaluations; or create the possibility of a'new or different kind of accident or condition over previous evaluations; or involve a significant reduction in a margin of safety.
Therefore, the requested license amendment does not involve a significant hazards consideration.
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