ML20078J340

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Proposed Tech Spec Changes Re Movable Rod Control Sys Requirements
ML20078J340
Person / Time
Site: Farley  Southern Nuclear icon.png
Issue date: 10/10/1983
From:
ALABAMA POWER CO.
To:
Shared Package
ML20078J322 List:
References
NUDOCS 8310170423
Download: ML20078J340 (5)


Text

. .

ATTACHMENT PROPOSED TECHNICAL SPECIFICATION CHANGES Unit 1 Pg. 3/4 1-14 Pg. 3/4 1-14a Unit 2 Pg. 3/4 1-14 Pg. 3/4 1-14a l

l 8310170423 831010 DR ADOCK 05000

REACTIVITY CONTROL SYSTEM 3/4.1.3. MOVABLE CONTROL ASSEMBLIES GROUP HEIGHT LIMITING CONDITION FOR OPERATION 3.1.3.1 All full length (shutdown and control) rods shall be OPERABLE and positioned within i 12 steps (indicated position) of their group step counter demand position.

APPLICABILITY: MODES 1* and 2*.

ACIT0N:

a. With one or more full length rods inoperable due to being immovable as a reult of excessive friction or mechanical interference or known to be untrippable, determine that the SHUTDOWN MARGIN requirment of Specification 3.1.1.1 is satisfied within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and be in H0T STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
b. With more than one full length rod misaligned from the group step counter demand position by more than 12 steps (indicated position), be in HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
c. With more that one full length rod inoperable due to being immovable as a result of a problem identified to be in the rod control system and known not to affect tripability, operation
may continue while troubleshooting / repair is being completed i but not beyond 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> provided that
1. All rods in the affected bank (s) are verified every 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> to be in the demanded position,
2. All rods are above the rod insertion limits,
3. If the cause of the immovable rods is due to an electrical problem within the power cabinets of the rod control system, 75% of the rods shall be verified to be movable within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
4. If the cause of the immovable rods is due to an electrical problem not within the power cabinets of the rod control system, repair shall be completed within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

Otherwise, be in H0T STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

l

  • See Special Test Exception 3.10.2 and 3.10.3 FARLEY - UNIT 1 3/4 1-14

REACTIVITY CONTROL SYSTEM 3/4.1.3. M0VABLE CONTROL ASSEMBLIES GROUP HEIGHT LIMITING CONDITION FOR OPERATION 4

d. With more than one full length rod inoperable due to any cause other than addressed by ACTION c. above, be in HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
e. With one full length rod inoperable due to causes other than addressed by ACTION a, above, or misaligned from its group step counter demand height by more than i 12 steps (indicated position), POWER OPERATION may continue provided that within one hour either:
1. The rod is restored to OPERABLE status within the above alignment requirements, or
2. The remainder of the rods in the group with the inoperable rod are aligned to within i 12 steps of the inoperable rod within one hour while maintaining the rod sequence and insertion limits of Figures 3.1-1 and 3.1-2; the THERMAL POWER level shall be restricted pursuant to Specification 3.1.3.6 during subsequent operation, or
3. The rod is declared inoperable and the SHUTDOWN MARGIN requirenent of Specification 3.1.1.1 is satisfied. POWER OPERATION may then continue provided that:

a) A reevaluation of each accident analysis of Table 3.1-1 is performed within 5 days; this reevaluation shall confirm that the previously analyzed results of these accidents remain valid for the duration of operation under these conditions.

FARLEY-UNIT 1 3/4 1-14a

. - . -- . - - _ . _ . - _ , - - .. - - . _ ~ - - - . . - - _ ___ __ - - .. . . _.

REACTIVITY CONTROL SYSTEM 3/4.1.3. MOVABLE CONTROL ASSEMBLIES GROUP HEIGHT LIMITING CONDITION FOR OPERATION 3.1.3.1 All full length (shutdown and control) rods shall be OPERABLE and positioned within 12 steps (indicated position) of their group step counter demand position.

APPLICABILITY: MODES 1* and 2*.

ACIT0N:

a. With one or more full length rods inoperable due to being immovable as a reult of excessive friction or mechanical interference or known to be untrippable, determine that the SHUTDOWN MARGIN requirment of Specification 3.1.1.1 is satisfied within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and be in HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
b. With more than one full length rod misaligned from the group step counter demand position by more than 12 steps (indicated position), be in HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
c. With more that cne full length rod inoperable due to being immovable as a result of a problem identified to be in the rod control system and known not to affect tripability, operation may continue while troubleshooting / repair is being completed but not beyond 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> provided that:
1. All rods in the affected bank (s) are verified every 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> to be in the demanded position,
2. All rods are above the rod insertion limits,
3. If the cause of the immovable rods is due to an electrical problem within the power cabinets of the rod control system, 75% of the rods shall be verified to be movable within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
4. If the cause of the immovable rods is due to an electrical problem not within the power cabinets of the rod control system, repair shall be completed within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

Otherwise, be in HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

  • See Special Test Exception 3.10.2 and 3.10.3 FARLEY - UNIT 2 3/4 1-14 l

REACTIVITY CONTROL SYSTEM 3/4.1.3. MOVABLE CONTROL ASSEMBLIES GROUP HEIGHT LIMITING C0folTION FOR OPERATION

d. With more than one full length rod inoperable due to any cause other than addressed by ACTION c. above, be in HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
e. With one full length rod inoperable due to causes other than addressed by ACTION a, above, or misaligned from its group step j

counter demand height by more than i 12 steps (indicated position), POWER OPERATION may continue provided that within one hour either:

1. The rod is restored to OPERABLE status within the above alignment requirements, or
2. The remainder of the rods in the group with the inoperable rod are aligned to within i 12 steps of the inoperable rod within one hour while maintaining the rod sequence and insertion limits of Figures 3.1-1 and 3.1-2; the THERMAL POWER level shall be restricted pursuant to Specification 3.1.3.6 during subsequent operation, or
3. The rod is declared inoperable and the SHUTDOWN MARGIN requirement of Specification 3.1.1.1 is satisfied. POWER OPERATION may then continue provided that:

a) A reevaluation of each accident analysis of Table 3.1-1 is performed within 5 days; this reevaluation shall t

confirm that the previously analyzed results of these accidents remain valid for the duration of operation under these conditions.

FARLEY-UNIT 2 3/4 1-14a