ML20207A578
| ML20207A578 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 05/20/1999 |
| From: | NRC (Affiliation Not Assigned) |
| To: | |
| Shared Package | |
| ML20207A575 | List: |
| References | |
| NUDOCS 9905270041 | |
| Download: ML20207A578 (3) | |
Text
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'I 3/4.1 REACTIVITY CONTROL SYSTEMS 3/4.1.1 BORATION 0")NTROL SHUTDOWN MARGIN - T.,. ar 200*F LIMITING CONDITION FOR OPERATION 3.1.1.1 The SHUTDOWN MARGIN shall be greater than or equal to 1.6% delta k/k for 4 loop operation.
APPLICABILITY: MODES 1, 2*,
3, and 4.
ACTION:
With the SHUTDOWN MARGIN less than 1.6% delta k/k, immediately initiate and
)
continue boration at greater than or equal to 35 gpm of a solution containing greater than or equal to 6120 ppm boron or equivalent until the required R163 SHUTDOWN MARGIN is restored.
SURVEILLANCE REQUIREMENTS i
4.1.1.1.1 The SHUTDOWN MARGIN shall be determined to be greater than or equal to 1.6% delta k/k:
a.
Within one hour after detection of an inoperable control rod (s) and at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter while the rod (s) is inoperable.
If the inoperable control rod is immovable or untrippable, the above required SHUTDOWN MARGIN shall be verified i
acceptable with an increased allowance for the withdrawn worth of
{
the immovable or untrippable control rod (s),
b.
When in MODE 1 or MODE 2 with K greater than or equal to 1.0, at I
leastonceper12hoursbyverifffngthat control bank withdrawal j.
is within the limits of Specification 3.1.3.6.
l c.
When in MODE 2, with K less than 1.0, within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> prior to l
achieving reactor critfb$lity by verifying that the predicted j
critical control rod position is within the limits of 1
Specification 3.1.3.6.
d.
Prior to initial operation above 5% RATED THERMAL POWER after each fuel loading, by consideration of the factors of e below, with the j
control banks at the maximum insertion limit of Specification 3.1.3.6.
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- See Special Test Exception 3.10.1 November 26, 1933 SEQUOYAH - UNIT 2 3/4 1-1 Amendment No. 163 r
9905270041 990520 PDR ADOCK 05000328 PDR p
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L i-I Mr. J. A. Scalice SEQUOYAH NUCLEAR PLANT Tennessee Valley Authority cc:
Senior Vice President Mr. Pedro Salas, Manager Nuclear Operations Licensing and Industry Affairs Tennessee Valley Authority Sequoyah Nuclear Plant 6A Lookout Place -
Tennessee Valley Authority 1101 Market Street P.O. Box 2000 Chattanooga, TN 37402-2801 Soddy Daisy, TN 37379 Mr. Jack A. Bailey Mr. D. L. Koehl, Plant Manager Vice President Sequoyah Nuclear Plant Engineering & Technical Services Tennessee Valley Authority Tennessee Valley Authority P.O. Box 2000 6A Lookout Place Soddy Daisy, TN 37379 1101 Market Street i
Chattanooga, TN 37402-2801 Mr. Melvin C. Shannon Senior Resident inspector Mr. Masoud Bajestani Sequoyah Nuclear Plant i
Site Vice President U.S. Nuclear Regulatory Commission Sequoyah Nuclear Plant 2600 Igou Ferry Road Tennessee Valley Authority Soddy Daisy, TN 37379 P.O. Box 2000 Soddy Daisy, TN 37379 Mr. Michael H. Mobley, Director TN Dept. of Environment & Conservation General Counsel Division of Radiological Health Tennessee Valley Authority 3rd Floor, L and C Annex
' ET 10H 401 Church Street 400 West Summit Hill Drive Nashville, TN 37243-1532 Knoxville, TN 37902 County Executive Mr. N. C. Kazanas, General Manager Hamilton County Courthouse NuclearAssurance Chattanooga, TN 37402-2801 Tennessee Valley Authority 5M Lookout Place 1101 Market Street 4
Chattanooga, TN 37402-2801 1
' Mr. Mark J. Burzynski, Manager Nuclear Licensing Tennessee Valley Authority 4X Blue Ridge 1101 Market Street
. Chattanooga, TN 37402-2801
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PUBLIC SON r/f W. Beckner l
P. Fredrickson, Ril 1
J. Zwolinski ACRS OGC G. Hill (4) i H. Berkow S. Peterson -
R. Heman B. Clayton i
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