ML18043A990
| ML18043A990 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 08/28/1979 |
| From: | Marusich R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | Levin H Office of Nuclear Reactor Regulation |
| References | |
| TASK-03-06, TASK-03-07.B, TASK-3-7.B, TASK-RR MARU-45-79, NUDOCS 7909040546 | |
| Download: ML18043A990 (3) | |
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.; -----.. ;.l consumers Power company General Offices: 212 West Michigan Avenue, Jackson, Michigan 49201 * (517) 788-0550 August 28, 1979 Howard Levin SEP Branch Phillips Building 7920 Norfolk Ave.
Bethesda, Ma_~land MARU 45-79 Attached is the additional information required to document the seismic resistance capability of the Palisades facility as requested by* the NRC (Howard Levin) by telecopy of July 19, 1979.
c~::=-~~:2!'
CPCo and our consultants Bechtel Corp. and Combustion Engineering.have searched the drawing, engineering and purchase fi,@.
The result_ of this search is that most of the information requested has been located and attached.
The files searched[d]Ji not, in all cases, cont~p the information requested.
Where tfils occured, additional information was provided with the intent that the NRC' staff and/or its consultants could perform the necessary calcula~Jon and thereby satisfy themselves *of the seismic adequecy~_lL~~~
determiAed thatf this approach was the most cost effective way to gather the I
majority of the information in a r_easonable period of t*ime.
If the NRC staff believes that sufficient information still does not exist, CPCo is willing to derive or obtain the necessary information.
Note however that the cost will be much greater and the time to obtain the information longer.
Information not available as follows:
Q~t~~9,P A.2 - The turbine building model is presented howeve;;iio re-
~":.:"--~:*.~~>. sults (moments, shears, displacements, etc.) from the use
- of the model is available.
CPCo and Bechtel believe that
~-----------t*he-t-u:rbine-wi-bl-w-iths:tand_:the_s.eism.ic_f.o.r_c_e_s_an.Ltha,_,,t'---------
this is evident from the drawings distributed at the Palisades site meeting, the results of a dY!!amic analysis are summarized in Amendment_l 7, _Question--8 of the Palisad~s 1!
-FSAR and S~ction--5: 3-*o:f.the _ __FSAR.
)
Question
-~-~-~---- - ---- ---------------------~------
A.3 - The response ~pectra presented was derived after the purchase specifi~~tions had been sent out.
A series of spot checks show that these spectra are very close to those used (See Table 1-1 of the original submittal-let-ter Hoffman to Zieman, June 8, 1979).
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~*- ::.
Question B.2 - The anchorage details for the service water pumps and auxiliary feedwater pump were not found in this search.
Based on th_e purchase specification, the seismic calculations?.,.,,
manufacturers drawings and good erection and construction pr!ftice, CPCo believes that anchorage details were devel-oped and used in the foundation construction. If deemed necess~ry, CPCo will obtain these details.
Questi-~!(j~4a-No information is presently available concerning '-tb.e3
.diesel generator fuel oil day tank.
The diesel generator and related equipment were purchased late in the plant construction phase.
CPCo knows.that these tanks were
- purchased under specification M-38.
CPCo believes* that they were built to Seismic Class I criteria as defined in.
that spcification based their JJ1clusion in Appendix A of the FSAR and Amendment 15 Question 7. 7.
The search, '~s cribed above, however produced no additional information.
__ -@f deemed necessary, CPCo is willing to spend. t¥ time necessary to obtain the information required.
Question B. 4a - Anchorage details are not available for any of the tank.s.
Based on the.purchase specification, the ~eismic calculation manufacturers drawings, and good erection and construction*
practice CPCo believes that anchorage details were develop;..
ed and used in the foundation construction. If deemed.
necessary, CPCo will obtain these details.. Note T-102 is the Hydraz:ine Tank. although it is noted as the NaOH Tank and T-103 is the NaOH Tank..
Question B.8 - The analysis.demonstrating that the C-06 panel is rigid and that it can withstand the accelerations is not available.
Based on the information contained in. the purchase specifi- * '
cation concfrning seism_ic desigri, Atta§pment B.8-1 and letters.
from HARLO stating that other cabinets. included in the pur-c.ha.se specification (Cl2, C03,_ C08, COl) _were manufactured in accordance with the spec, CPCo be.lieves that the C06 panel was built to the seismic design criteria listed in the specification. *cPCo believes that the geometry of the 2
~~~~~~~~~-G06-pane~_:_i-s-i:.~ch~ha~-~verturning-moment-~hould_no~~b~e~~~--.--.
- a problem:
Question B.9 - The only information presently available concerning the DC Motor Control Centers is that CPCo.specified in the purchase specification that seismic loads be consid-ered, Westinghouse took. no exception to the specification when they accepted the job and no letters exist stating
- that"--seismi~ loads could not be incorperated.
- If. necessary;*
---GP-Ge--i-s---wi-:J_-l-i.ng-to_gpen<Ltge~t.ime_t.o_ga.thex__t,hE;_mµ.sing... dat.e,_. _______.J
Question B.11 - Seismic qualifications of the RPS will be performed by reviewing the Palisades equipment against that contained in CENPD-61.
This determination will be submitted at a later date.
Question B.13V-CPCo has just received the report from the Cable Tray and Conduit Raceway Seismic Test Program conducted by Bechtel Corperation and ANCO Engineers, Inc.
The report covers seismic testing of various cable trays, conduits combinations
-of trays and conduits and their supports.
None of.(:faie trays or conduits tested suffered damage which impaired th'e_,function of the circuits contained..A more thorough review will be conducted to ~etermine the tray and conduit configuration~~ost like Palisad~s. The test perfo,~ed and the results ford_hi's configuration will be reported later.
Questions B.15 and B.*16 are th~ questions asked by EDAC and sent to us by telecopy on August 10, 1979 from T.M. Cheng.
A set of drawings have been inserted 'into the appropriate lo~tions within the responses.
An identical set of aperture cards of these drawings has also been provided from wh~ch the consultants copies can be made. *
- RMMarusich Senior Engineer 3