ML19318B855
| ML19318B855 | |
| Person / Time | |
|---|---|
| Issue date: | 06/08/1978 |
| From: | Novak T Office of Nuclear Reactor Regulation |
| To: | Benaroya V Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19318B856 | List: |
| References | |
| REF-GTECI-A-31, REF-GTECI-DC, RTR-REGGD-01.139, RTR-REGGD-1.139, TASK-A-31, TASK-EM-801-4, TASK-OR, TASK-OS NUDOCS 8006300188 | |
| Download: ML19318B855 (3) | |
Text
..
Generic Task !!o. A-31
- i. ;
i.E!!0PMDU?1 FOR:
V. Eenarcya, Chief, Auxiliary Systems Sranch, DSS FR0il:
T. M. l'ovak, Chief, Reactor Systems Branch, DSS k
SUBJECT:
ITLE:iENTATION OF REVISED SP.P 5.4.7 Fevised SRP 5.4.7, which includes BTP RSS 5-1, has new requirements which affect several SRP's for which the ASB has primary review responsibility.
The implecentation schedule fc: revised SRP 5.4.7 is given in Enclosure 1 R
and was approved by the Director, NRR, on !' arch 10, 1978.
i.
Full inplementation of revised SRP 5.4.7 will.be applied to Class 1 plants (all custon er standard plants for which CP or PDA applications are docketed F
af ter 1/1/78).
For PUR Class 1 plants the functional requircaents for
[
going to cold shutdown and the requirements for the steam dump valves and 0
water source for the AFS affect the Auxiliary Systems Branch.
In order to F.cet the functional requirer. ants, the applicant may upgrade those portions of the CVCS normally used to cool down to conditions permitting operation n
of the R!!R system or may propose a backup approach involving less upgrading l
(e.g., use of ECCS, pressurizer relief valve).
For PWRs, RSB would review the approach used to meet the functional rqquirements of BIP RSB 5-1 with respect to cooldown to the cold shutdown condition. Since the ASG has primary review responsibility for the pertinent portions of the CVCS (SRP 9.3.4), the atmospheric dump valves (SRP 10.3), and the source for auxiliary feedwater (SRP 4.9), it would be responsible for the reifew of these systems to show conformance with BTP RSS 5-1.
The RSB would revicu the RMP.S and, if used, the pressurizer relief valve and ECCS.
In addition, the RSB reviews the tests and supporting analysis concerning aixing of borated' water and cooldoim under natural circulation as required in BTP P.SB 5-1.
The partial icplementation outlined in Table 2 of Enclosuro 1 is to be applied
~
to Class 2 plants (all custca or standard plants for uhich CP or PDA applications were dccheted before 1/1I78 and with expected OL issuance dates on or after 1/1/70). For PURs. the RSS reviews the approach used to go to the cold shutdown condition.
With respect to the adequacy of prpposed manual actions involving depressuritation and horattori cited in Table 2 of Enciccare 1,
Contact:
Chuck Graves, !!RR 49-2 2 1 THIS DOCUMENT CONTAINS POOR QUAUTY PAGES CPP4Cs >
781860234 su= = = s
- sats*
N*RC IOR31313 (9 74) NRChi 0240
- /r un s.sovannMaut paintium arries ie7e - eze.e 4
- 800630458
l
'/. Eenaroya 393 gW the ASS would have primary review responsibility for the acceptability of those actions for the C'lCS (SRP 9.3.9).
The ASB would also have primary revieu respcnsibility for review of the atmospheric dump valves and the source for auxiliary feeduater. The RSB uculd review the tests and sup-porting analysis concerning mixing of borated water and cooldown under a
natural circulation.
"ote that for Class 3 plants the required implementation will be determined by D0R and IE. A list of Class 3 plants recently or currently under licensing review is given in Enclosure 2.
This list was obtained from the 1.icensing Projection for December 1977 when the RRRC approved the impiccantation.
It is expected that you will modify your Standard Revieu Plans accordingly.
Or!g:nal SignsJ L1 Thomas M. Novet Thomas M. Novak, Chief Reactor Systems Branch Division of Systems Safety
Enclosures:
As Stated DistributionCce$tril FilD cc:
D. Ross R. Tedesco fiRR~Rd9-G. I'.azetis RSB Rdg.
c.q S. Israel TNovak U
RSE Hembers Graves chron 4
'1 e rr C.*
DSS:RSB DSS:RSB JSS4[
CGravesIcIi'I Sisrael'"
Ydovak cux~.=
- Odf/78
_Qilf3ZZS 05/7/78___
f o.,r
- NRC FOR.%t 318 (9 76) NRC>t 0240 D u.s.oovenmusm?pamrN3 OFrICRs ISM -426 614
Hate to: Accession Unit
. Room 050 Phillins Buildino SeMlMouf Froc.-
T G.
SD - DES'- RSS B Please place the attached docuc ent in t'.e PDP. using the follouing file ar.d -fil.e r
points:
PDR File Additichal Info (Select one and enter number)
(Enterifappropriate)
~
h Proposed Rule (PR)
ACRS Minutes No.
Reg. Guide /,/3e/ ~ 4ev, /
Relates to -Proposed Rule (PR)
Petition (PRii)
Relates to Reg. Guide Relates to Petition (PRii) [P:ij ~-
Effective Rule TRii)
Relates to Effective Rule Atl51 IAEA Federal Registc'r Hotice 50 -Task flo. Em Fo/ - 4 NUREG Report f
' fe(eRence W3 fo fAebminaf nluel.E $h U
ke.rs'cKaf Y-enf keMWI
Subject:
L p /e;r,n fo f'm
,,-f ke o,' sed?
' su s. v.,
To < 1/. Beacoya CC:
Central Files F%: T.m.Aket On+e. - 4/T/'?!
co, W Enclx~res
/ 42 1
1