ML20247D881
| ML20247D881 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 09/04/1989 |
| From: | BALTIMORE GAS & ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML20247D879 | List: |
| References | |
| NUDOCS 8909150110 | |
| Download: ML20247D881 (2) | |
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INS ~2.JME'~ATION IN::RE DETECTORS LIM 1~1*;3 CC' CIT!D*, FOR OPERATION 3.3.3.2 The incere dete: tion system shall be OPERABLE-witt at least one 0:IRABLE detector segnent in each core cuadrar.t on ea:h of the fear axial elevatiors certaining intore dete: tors and as further spe:ified e
below; a.
For no*itoring the A211ThA; P0b'R i!LT:
At least tw: quadrar.1 s3 metric incere detector sepert ;rN;s at ea:h cf the four axial elevations centaining 'e::-e este: tors
.in the outer 184 fuel assentites with sufficien: 00E:.AE.E dete:tg segneris in these dete:te geo;;s to compute at least tw:
A;1M. ~ n A.. POWER T1;i values at each of the fou-ax'a'. Ele.adots !
C D' tainir.g ir.00"e dete: tors.
b.
T c r re: al i t e e ti :.". c f *.he er,Wr e ne u *.ror. #1 a > d e t e : d : 5 sy!! e- -
1.
At least 75". cf all in ore dete: tee seg e"ts, 1
2.
A eirin; c' 9 C:EE*B;E in: ore detecter segne ts at ea:*
dete: ce segment level, and 3.
A ni-in;m of 2 0FERAB.I dete: tor seperts ir. the ir..e-
'09 #sel assentlies and 2 CPERABLE sepe is ir the oster
.10E ';e1 assent. lies at ea:t segment level.
c '.
For mor.itering the 'JNRMDEO PLANAR RAEI AL PEA 6.:',3 ra:i:',
the LNR EDE:, l'iTIGO. ATE; RADIAL PE 4:NG FACTOR, ce the li c.e a r best rate:
1.
At least 75% of ali intore detector locations.
.2.
A Mr.imsm of 9 OPERABLE incore detector segmerts at each detector seper.t level, and 3.
A mininam of 2 OPERABLE detector seperts in the inc.er 109 fue'. assemblies and 2 OPERAB;E segments. in the outer 10E f el assemblies at ea:b segmer.t level.
Ar. OPERABLE incore detector segment shall consist of an OPERAB;E rhodium detector constituting one of the segments in a fixed dete:ter string.
Ar 00ERABLE inco-e detector location sha*.i consist of a strim; ir which at least three of the four incore dete: tor sepe"ts are 0 EUE E-
- o. k, CALVERT CLIFFS - L' HIT 1 3/4 '3-29 Anse:-e-8909150110 890904 l
DR ADOCK 05000317 PDC
INSTRUMENTATION INCORE DETECTORS LIMITING CONDITION FOR OPERATION i
3.3.3.2 The incore detection system shall be OPERABLE with at least one l
OPERABLE detector segment in' each core quadrant on each of the four axial j
elevations containing incore detectors and as further specified below:
a.
For monitoring the AZIMUTHAL POWER TILT:
At least two quadrant symmetric incore detector segment groups at each of the four axial elevations containing incore detectors in the outer 184 fuel assemblies with sufficient OPERABLE detector segments i
in these detector groups to computer at least two AZIMUTHAL POWER i
TILT values at each of the four axial elevations containing incore j
detectors.
j b.
For recalibration of the excore neutron flux detector system:
1 At least 75% of all incore detector segments, l
2.
A minimum of 9 OPERABLE incore detector segments at each detector segment level, and l
3.
A minimum of 2 OPERABLE detector segments in the inner 109 fuel assemblies and 2 OPEP.AELE segments in the outer 108 fuel assemblies at each segment level, c.
For monitoring the UNRODDED PLANAR RADIAL PEAKING FACTOR,the UNRODDED INTEGRATED RADIAL PEAKING FACTOR, or the linear heat rate:
1.
At least 75% of all incore detector locations, i
2.
A minimum of 9 OPERABLE incore detector segments at each detector segment level, and 3.
A minimum of 2 OPERABLE detector segments in the inner 109 fuel assemblies and 2 OPERABLE segments in the outer 108 fuel assemblies at each segment level.
An OPERABLE incore detector segment shall consist of an OPERABLE rhodium detector constituting one of the segments in a fixed detector string.
An OPERABLE incore detector location shall consist of a string in which at least three of the four incore detector segments are OPERABLE.
CALVERT CLIFFS - UNIT 1 3/4 3-29 Amendment No. JA, JJE, 129 L- ---