ML19312B910: Difference between revisions
StriderTol (talk | contribs) Created page by program invented by StriderTol |
StriderTol (talk | contribs) Created page by program invented by StriderTol |
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{{#Wiki_filter:- _ . _ _ - _. _ _. . ._. _ - . _ __ | {{#Wiki_filter:- _ . _ _ - _. _ _. . ._. _ - . _ __ | ||
,- Attachment 2 3.11 MAXIMUM POWER RESTRICTION Applicability a | ,- Attachment 2 3.11 MAXIMUM POWER RESTRICTION Applicability a | ||
l Applies to the nuclear steam supply system of Units 2 and 3 reactors. | l Applies to the nuclear steam supply system of Units 2 and 3 reactors. | ||
Objective 4 | Objective 4 | ||
To maintain core li'a margin in reserve until the system has performed | To maintain core li'a margin in reserve until the system has performed | ||
! under operating '.onditions and design cojectives for a significant period | ! under operating '.onditions and design cojectives for a significant period of time, t | ||
of time, t | |||
Specification < | Specification < | ||
r 3.11.1 The first reactor core in Unit 2 may not be operated beyond 11,040 effective full power hours until supporting analysis and data pertinent to fuel clad collapse under fuel densifi-cation conditions have been approved by the Directorate of Licensing. | r 3.11.1 The first reactor core in Unit 2 may not be operated beyond 11,040 effective full power hours until supporting analysis and data pertinent to fuel clad collapse under fuel densifi-cation conditions have been approved by the Directorate of Licensing. | ||
| Line 40: | Line 31: | ||
Bases | Bases | ||
) The licensing staf f has reviewed the effects of fuel densification for the j first core in Oconee Units 2 and 3 and concluded that clad collapse will not j take place within the first fuel cycle (11,040 effective full power hours j for Unit 3 and 10,944 effective full power hours for Unit 3). However, the clad collapse model used is questionable for extrapolation of clad collapse time out beyond the first fuel cycle because of limited experi-mental verification. | ) The licensing staf f has reviewed the effects of fuel densification for the j first core in Oconee Units 2 and 3 and concluded that clad collapse will not j take place within the first fuel cycle (11,040 effective full power hours j for Unit 3 and 10,944 effective full power hours for Unit 3). However, the clad collapse model used is questionable for extrapolation of clad collapse time out beyond the first fuel cycle because of limited experi-mental verification. | ||
J | J 1 | ||
1 | |||
l t | l t | ||
I | I l 7niava 7@ | ||
l 7niava 7@ | |||
! 3.11-1 | ! 3.11-1 | ||
_ _ _ . . . _ . _ . - . . , . _ - . . . _ _ _ - _ - - _ _ _ .}} | _ _ _ . . . _ . _ . - . . , . _ - . . . _ _ _ - _ - - _ _ _ .}} | ||
Revision as of 09:03, 1 February 2020
| ML19312B910 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 07/30/1974 |
| From: | DUKE POWER CO. |
| To: | |
| Shared Package | |
| ML19312B906 | List: |
| References | |
| NUDOCS 7911270702 | |
| Download: ML19312B910 (1) | |
Text
- _ . _ _ - _. _ _. . ._. _ - . _ __
,- Attachment 2 3.11 MAXIMUM POWER RESTRICTION Applicability a
l Applies to the nuclear steam supply system of Units 2 and 3 reactors.
Objective 4
To maintain core li'a margin in reserve until the system has performed
! under operating '.onditions and design cojectives for a significant period of time, t
Specification <
r 3.11.1 The first reactor core in Unit 2 may not be operated beyond 11,040 effective full power hours until supporting analysis and data pertinent to fuel clad collapse under fuel densifi-cation conditions have been approved by the Directorate of Licensing.
3.11.2 The first reactor core in Unit 3 may not be operated beyond 10,944 effective full power hours until supporting analysis and data pertinent to fuel clad collapse under fuel densifi-
{ cation conditions have been approved by the Directorate of
- Licensing.
Bases
) The licensing staf f has reviewed the effects of fuel densification for the j first core in Oconee Units 2 and 3 and concluded that clad collapse will not j take place within the first fuel cycle (11,040 effective full power hours j for Unit 3 and 10,944 effective full power hours for Unit 3). However, the clad collapse model used is questionable for extrapolation of clad collapse time out beyond the first fuel cycle because of limited experi-mental verification.
J 1
l t
I l 7niava 7@
! 3.11-1
_ _ _ . . . _ . _ . - . . , . _ - . . . _ _ _ - _ - - _ _ _ .