ML20136G239
| ML20136G239 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 11/13/1985 |
| From: | COMMONWEALTH EDISON CO. |
| To: | |
| Shared Package | |
| ML20136G129 | List: |
| References | |
| NUDOCS 8511220287 | |
| Download: ML20136G239 (4) | |
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ATTACHMENT-B PROPOSE 0-CHANGE TO APPENDIX-A TECHNICAL SPECIFICATION TO OPERATING-LICENSE NPF-ll REVISED PAGE:
3/4 6-31 0880K 8511220287 851113 PDR ADOCM 05000373 P
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t' TABLE 3.6.3-1 (Continued)
PRIMARY CONTAINMENT ISOLATION VALVES p
VALVE FUNCTION AND NUMBER Excess Flow Check ValvesI9) (Continued) p 46.
1E12-F359A, B 47.
1E12-F319 48.
IE12-F317 49.
1E12-F360A, B 50.
1E21-F304 51.
IE22-F304 52.
1E22-F341 53.
?
54.
1833-F319A, B w~
55.
1833-F317A, B 56.
1833-F313A, B, C, D 57.
1833-F311A, B, C, D 58.
1833-F315A, B, C, D 59.
IB33-F301A, B 60.
IB33-F307A, B, C, D 61.
1833-F305A, B, C, D 62.
ICM004 63.
ICM002 64.
ICM012 65.
ICM010 66.
IVQ061 67.
1821-F457 68.
1821-F459 69.
1821-F461 70 I M I O2-
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ATTACHMENT C L
SIGNIFICANT HAZARDS CONSIDERATION t
1 Commonwealth Edison has evaluated.the proposed Technical L
Specification Amendment and determined that it does not represent a significant-hazards consideration.
Based on the criteria for.
defining a significant hazaros consideration established in 10CFR50.92 operation of LaSalle County Station Unit 1 in accordance
.with the proposed amendment will not:
'1.
Involve a significant increase in the probability or consequences of an accident previously evaluated because the additional containment penetration will be designed in accordance.with General Design Criteria 56 and Regulatory Guide 1.11.
This additional instrument line will not significantly increase the consequences of any postulated accident.
)
2.
Create the possibility of a new or different kind of accident from any accident previously evaluated because instrument line failure has already being evaluated.
3..
' Involve a significant reduction in the margin of safety because the instrument line meets the regulatory-requirements to ensure that the margin of safety is maintained.
Based on the preceding discussion, it is concluded that the proposed system change clearly falls within all acceptable criteria with respect to the system or component, the consequences of-previously evaluated accidents will not be increased and the margin of safety will not be decreased.
Therefore, based on the guidance provided in the Federal Register and the criteria established in 10 CFR50.92(c), the proposed change does not constitute a significant hazards consideration.
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