ML18092A256
| ML18092A256 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 08/13/1984 |
| From: | Varga S Office of Nuclear Reactor Regulation |
| To: | Uderitz R Public Service Enterprise Group |
| References | |
| NUDOCS 8408210554 | |
| Download: ML18092A256 (2) | |
Text
Docket Nos. 50-272 and 50... 311
~.
August 13, 1984
. Distribution tllotket THe~]
.NRC Y-DR.,.. "-*
Local PDR ORB#l Reacing D. Eisenhut OELD E. Jordan J. N. Grace D. Fischer C. Parrish ACRS ( 10)
Mr. Richard A. Uderitz, Vice President~
Nuclear Public Service Electric and Gas Co.
P.O. *aox 236 Hancocks Bridge, New Jersey 08038
Dear Mr. Uderitz:
SUBJECT:
ENIVRONMENTAL. QUALIFICATION OF EQU~~'PMENT IMPORT~T TO SAFETY, REQUEST FOR ADDITIONAL INFORMATION.., SALEM UNITS 1 AND 2 The staff has com1Jleted its review of the environmental qualification of electrical equipme11t important to safety for Salem l and 2. The review produced the need to docket the remaining outst~~[i!Js~):justifications for continued operating (JCO's) and the additional listed information.
In order to complete our Safety Evaluation Report on environmental qualifi*
cation for Salem Units l and 2, the following information is required by August 27; 1984.
- l.
Submit all applicable JGO's that are currently bE{iing relied upon and confirm the following for each JCO associated with equipment that is assumed to fail; No significant degradation of any safety function or misleading information to tee operator as a result of failure of eq\\:l}ipment under the accident e[vironment resulting from a design basis event i'Jil1 occur.
- 2.
The licensee should confirm that in performing its review of the methodology to identify equipment within the scope of 10 CFR 50.49(b)(2) ~hat the following steps have been addressed:..
a..
A list \\'Jas-genera~,@) of s.. afety... related electric equipment as defined in paragraph (b K((l) of 10 CFR ~@.4*9frequired to remain functional during-or following design*basis Loss of
. Coolant Accident (LOCA) or High Energy Line Break (HELB)
Accidents. The LOCA/HELB acddants are the only design*
- basis accidents v1hich result in significantly adverse environments to electrical equipment which is required for safe sh1,1tdown or accid~nt mitigation~ the list was based on reviews of the Final Sa*fety Analysis Report (FSAR)& Technical Specifications, Emergency Operating Procedures, Pip.ing and Instrumentation Di~~~r~ms (P&!Ds}ll, and electrical distribution di aarams.
-~-
I I
)
su:::::: :::[
!ri2°~f,8~~
4 o~6~.g~~~ *.
. *)::::: :::::::::::::::::::::::: :::::::::::::::::::::::: :::::::::::::::::::::::: ::::::::::::::::::::::::
D~TE........... : ************* r.. :....... :.............,........................ ".... '.~..........................................................................................
NRC FORM 318 (10-80) NRCM 0240 OFFICIAL RECORD COPY USGPO: 1981-335-960
.*J
~- *-----
---A----
- b ** The elementary wiring diagrams of the safety-related electrical equipqlent identified in Step a. were.r:?viewed to identj,fy any auxiliary devices electrically conne'cted directly into-the control or power circuitry of the safety-related equipment (e.g., automatic trips} \\I/hose failure due to postulated environmental conditions could prevent tequi!ed operation of the safety-related equipment and;
- c. The operation of the safety-related systems and equipment ~ere reviewed to identify any directly mechanically connected auxiliary systems with electri~al components which are necessary for the required operation of the safety-related eq.Ulp-ment (e.g., cooling water or lubricating systems).
This
- 3.
involved the review of P&IDs, component technical manuals~
and/or systems descriptions in the F?.'.~R.
- d.
Nonsafety-related electrical circuits i1Ddirectly associated with the electrical equipment i:Aentified in Step a. by common power supply or physical proximity were considered. _
by a review of the electrtcal design including the use of applicable industry standards {e.g., IEEE, NEMA, ANSI, UL,**
and NEC) and the use of properly coordinated protective relays, circuit breakers, and fuses for electrical fault protection.
Provide confirmation that all design basis events which could potentially result in a harsh environment, including flooding -
- outside containment~ were addressed in -~:fdentifying safety-related electrical equipment within the scope of 10 CFR 50.49 (b)(l).
- 4.
Confinn that the electrical equipment within the scope of 10 CFR 50.49 (b)(3) is all R.G. 1.97 Category 1 and 2 equipment or that_
justification ha~. been provided for any such equipment not included -
in the environmental qualification program; The reporting and/or recordkeeping requiremtnts of this letter affect.
fewer than ten respondents; therefore, OMB clearance is not requi*_ ed under P.L. 96-511*
cc:
See next page Sincerely, _
/$/S, Varga Steven A. Varga; Branch Chief Operating Repctors* Branch #1 Division of Licensing
---....---,~.f-L.4;.,.__,...---,4---,-----.--------,---------,-----T_----~,
\\.
B.# l :.D L................................... * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -,. *-* * *** * * * * * * * * * * * * *r:
......... ~............................................................................................ _.*............ ~***.....
/84
.............................. *...;-~-............. *...............
NRCFORM31a1101ao1NRCM024o o-FFICIAL RECORD coPv
- U.S. GPO 1983-400-247