ML20114F735
| ML20114F735 | |
| Person / Time | |
|---|---|
| Site: | 05000000, Waterford |
| Issue date: | 02/23/1982 |
| From: | Speis T Office of Nuclear Reactor Regulation |
| To: | Tedesco R Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML082170562 | List:
|
| References | |
| FOIA-84-143 NUDOCS 8203090788 | |
| Download: ML20114F735 (3) | |
Text
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IEE M RSplpOR: Robert L. Todoses. Assistent Mrector for Licensing l
Mwisten of Licensing pust:
Themis P. Spets. Assistant Meector fler Reactor safety Mviste of % stems Integretten Sim ECT:
N WIIT 3 - ICSB POSITIGI E RDWIE SHUTDonel CW MILITY fy.'
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Revleu Status: Inessplete
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... s 1he b etrusestatten 4 centrol swatoms granch (ICSS)'
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met s lessi sentret pesel (LCPThis identified eensores recordine the esemblitt of to current LCP desty to asuply with the s23ect staff poetelen. The app 19eset has agnosted to receive the staff positten sogarding shutdess espebl11tr fWem a leastion entside the esta centrol seem in order to better entestand staff esesores and to etd in forther LEP design esasiderettees. purement to tMs regnest, enciesed is the ICSS posttten fer remote sheldass sepab(11ty for the hterflerd 3 plant. W regenst that this positten he fleruerdad to the opplicant.
orfs:n=1 s,mg my n umas p.s,,,a 1 heels P. Speis. Assistent Mrector for haector Safety Mylsten of systens Integration
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ICSE POSITIO FOR ret 10TE SHUTDOLH CAPABILITY FOR WATERFORD 3
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To Meet set-N (As f aterereted in SRP Section 7 4)
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- 1) The desty should provide redundant safety grade ' capability to achieve and nefatain hot shutdown from a location or locations, remote from the control room, assuming no fire damage to any required systems and equipnent and assuming no accident has occurred. Credit any be taken for manual actuation (exclusive of continuous control) of systens from locations that are reasonably l
accessible from the Remote Shutdown Panel.
Credit may not be taken for manual
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actions involving jumpering rewiring or disconnectfng circuits.
- 2) The desip should provide redundant safety grade capability for attaining subsequent cold shutdown through the use of sultable procedures.
.Tn Meet Appendia K (ECCS Reaufreseng)
- 3), The desip should be such that the manual transfer of control to the renote location (s) should not disable any automatic actuation of ESF functions while the plant is attainlag or maintained in hot shutdown, other than where ESF features are manually placed in service to achieve or maintain hot shutdown.
It is permissible to disable automatic LPCI actuation in this manner only when necessary in order to enabla control of the RMt system from the resote location
, and uhtle operating this system to effect cold shutdown from hot shutdown.
To Meet Ascendla R (Fire Protection Raoufrements)-
- 4) The desty should provide, as a minimum, non-redundant non-safety grade systems necessary to achieve and' maintain hot shutdown from either the control room or j
from a reste location (s) assuming a postulated fire in ary fire area, including the control, room or the Resote Shutdown Panel.
Credit any be taken for manual cctuation (esclusive of continuous control) of systems from locations that are reas5aably accessible from the control room or the Reacte Shutdown Panel, as cppilcable. Credit may not be tale.n for manual actions involving junpering, rewiring *or disconnecting circuits.
- 5) 4he design,phould provide, as a sinfaum,' non-redundant non-safety grade systems necessary to achieve and maintain cold shatdown from either the control room or from a remote location (s). The design should be such that 16 the ewnt of fire damage in any fire area. systess could be repaired or made operable within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> if reqvfred for cold shutdown.
For further guidance, see 30 CFR Part 50. Appendix R.
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