ML20106F947
| ML20106F947 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 02/12/1985 |
| From: | UNION ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML20106F938 | List: |
| References | |
| ULNRC-1037, NUDOCS 8502140162 | |
| Download: ML20106F947 (1) | |
Text
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/ to ULNRC-1037 I
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.i Y
' CONI AINMt Ni_jY,'iI L,M*.
1 CONI AINMLNI Vl%t L STRilCIURAL INILGRilY llMillNG CONDITION IOR OPERATION L 6.1.6 The structural integrity of the containment vessel shall be maintained level consistent with the acceptance criteria in Specification 4.6.1.6.
at a Appt!CABilllY:
MODES 1, 2, 3, and 4 AC110N:
With more than one tendon with an observed lif t-of f force between a.
the predicted lower limit and 90% of the predicted lower limit or with -one tendon below 90% of the predicted lower limit, restore the tendon (s) to the required level of integrity within 15 days and perform an engineering evaluation of the containment and provide a Special Report to the Commission within 30 days in accordance with
-Specif ication 6.9.2 or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUT 00WN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
b.
With any abnormal degradation of the structural integrity other tr,cn ACTION a. at a level below the acceptance criteria of Specifica-tion 4.6.1.6, restore the containment vessti to the required level of integrity within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> and perform an engineering evaluation of the containment and provide a Special Report to the-Commission.
within.15 days in accordance with Specification 6.9.2 or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUT 00WN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
t SURVEILLANCE REQUIREMENTS
/,Jr 3.5.
E. T 4.6.1.6.1 Containment Vessel Tendons. The containmejt sse1[ tendons'struc-tural integrity shall be demonstrated at the end of,k7
, and,&' years following the init.ial containment vessel structural integrity test and at 5 year intervals thereafter.
ihe tendons' ' structural integrity shall be demonstrated by:
Determining that a random but representative sample-of at least 11-a.
p' tendons (4 inverted U and 7 hoop) each have an observed lift-off lurce within predicted limits for each.
For each subsequent'inspec-
- t. inn one tendon from each group may be kept unchanged to develop a history and to correlate the observed data.
If the observed lift-off l
sorce nt any one tendon in the original sample population lies helween 1.he predicted lower limit and 90% of the predicted lower l imi l., two tendons, one on each side of this tendon should be checked f or t heir lil t-nf I f or ces. 'It both of these adjacent, tendons' are tousul to tse within their predicted limits, all three tendons hould.
Im re.tored to the required level of integrity.
This single deficiency may Im considered unique and acceptable. Unless there is abnormal degr.nlatinn of the containment vessel duririg the first three inspec-
-tions, the sample population for subsequent inspections shall include t:
at least 6 tendons'(3 inverted V and 3 hoop);
Call AWAY - tlNIT I
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