ML16341C521: Difference between revisions
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| number = ML16341C521 | | number = ML16341C521 | ||
| issue date = 10/24/2016 | | issue date = 10/24/2016 | ||
| title = | | title = 7 to Updated Final Safety Analysis Report, Chapter 9, Table 9.10-1, Control Room Ventilation System Malfunction Analysis | ||
| author name = | | author name = | ||
| author affiliation = Indiana Michigan Power Co | | author affiliation = Indiana Michigan Power Co | ||
| Line 17: | Line 17: | ||
=Text= | =Text= | ||
{{#Wiki_filter:IINNDDIIAANNAA | {{#Wiki_filter:IINNDDIIAANNAA AANNDD M MIICCHHIIGGAANN PPOOW WEERR DD.. CC.. CCOOOOKK NNUUCCLLEEAARR PPLLAANNTT UUPPDDAATTEEDD FFIINNAALL SSAAFFEETTYY AANNAALLYYSSIISS RREEPPOORRTT Revision: | ||
: 1. Normal Intake Dampers Failure to close Two dampers in series ensure isolation of outside air normal intake. | 23 Table: | ||
Failure to open Parallel dampers ensure outside air intake opens. 2. Pressurization/Cleanup Intake Dampers Fully open or multiple dampers | 9.10-1 Page: | ||
1 of 1 CONTROL ROOM VENTILATION SYSTEM MALFUNCTION ANALYSIS COMPONENT MALFUNCTION COMMENTS AND CONSEQUENCES | |||
open One damper partially open is correct alignment. A single failure may result in one damper fully open or 2 dampers partially open. Other failures are not | : 1. | ||
Normal Intake Dampers Failure to close Two dampers in series ensure isolation of outside air normal intake. | |||
considered credible. 3. Pressurization/Cleanup Recirculation Damper Failed to closed position All air flowing through the filter is from the intake and air cleanup is limited to a single pass. Control Room dose consequences may increase. The position of the recirculation damper is administratively controlled so it does not | Failure to open Parallel dampers ensure outside air intake opens. | ||
: 2. | |||
need to change position in response to a | Pressurization/Cleanup Intake Dampers Fully open or multiple dampers open One damper partially open is correct alignment. A single failure may result in one damper fully open or 2 dampers partially open. Other failures are not considered credible. | ||
: 3. | |||
radiological accident.}} | Pressurization/Cleanup Recirculation Damper Failed to closed position All air flowing through the filter is from the intake and air cleanup is limited to a single pass. Control Room dose consequences may increase. The position of the recirculation damper is administratively controlled so it does not need to change position in response to a radiological accident.}} | ||
Latest revision as of 18:04, 9 January 2025
| ML16341C521 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 10/24/2016 |
| From: | Indiana Michigan Power Co |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML16336A263 | List:
|
| References | |
| AEP-NRC-2016-42 | |
| Download: ML16341C521 (1) | |
Text
IINNDDIIAANNAA AANNDD M MIICCHHIIGGAANN PPOOW WEERR DD.. CC.. CCOOOOKK NNUUCCLLEEAARR PPLLAANNTT UUPPDDAATTEEDD FFIINNAALL SSAAFFEETTYY AANNAALLYYSSIISS RREEPPOORRTT Revision:
23 Table:
9.10-1 Page:
1 of 1 CONTROL ROOM VENTILATION SYSTEM MALFUNCTION ANALYSIS COMPONENT MALFUNCTION COMMENTS AND CONSEQUENCES
- 1.
Normal Intake Dampers Failure to close Two dampers in series ensure isolation of outside air normal intake.
Failure to open Parallel dampers ensure outside air intake opens.
- 2.
Pressurization/Cleanup Intake Dampers Fully open or multiple dampers open One damper partially open is correct alignment. A single failure may result in one damper fully open or 2 dampers partially open. Other failures are not considered credible.
- 3.
Pressurization/Cleanup Recirculation Damper Failed to closed position All air flowing through the filter is from the intake and air cleanup is limited to a single pass. Control Room dose consequences may increase. The position of the recirculation damper is administratively controlled so it does not need to change position in response to a radiological accident.