ML080670044

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Peach Bottom, Units 2 and 3, PBAPS Calculation PS-049, Revision 2, Seismic Evaluation of Consoles 2(3)OCO5A, 2(3)OCO4A and 2(3)0C03 for Mod 955
ML080670044
Person / Time
Site: Peach Bottom  Constellation icon.png
Issue date: 02/28/2008
From:
Exelon Nuclear
To:
Office of Nuclear Reactor Regulation
References
PS-049, Rev 2
Download: ML080670044 (81)
v • d • e


Text

ATTACHMENT 3 Peach Bottom Atomic Power Station Units 2 and 3 Docket Nos. 50-277 and 50-278 License Amendment Request Response to Request for Additional Information Alternative Source Term (AST)PBAPS Calculation PS-049, Revision 2, "Seismic Evaluation of Consoles 2(3)OCO5A, 2(3)OCO4A and 2(3)0C03 for Mod 955" 0, NUCLEAR ENGINEERING DEPARTMENT M-20599 Rev. 2/89 DOCIYPE 061 1. Calculation No. PS- 04 9 Page 1 of7 WIII CALCULATION COVER SHEET 2. 0 Los l0 PB'APS A4fachmne,,t IP31, 21/~~-UNIT(S) 2 a Initialing Document:

4. Responsible Branch: 5. al No. ofS et:6L a o .~Slety Related Mod#i 955 6owaers 13r,-,onh 2.1 A -d4,4, 1 0 Non-Saliol Related 8Description:

%fr,"',/c 97Cauaio e0,7so/es 2(3)OCo5TA, Z2(3)0,604A fnd 9. SYstem-- No:Ea 701 2 (3) co.03 -AorAf09D.

9-q SStructure:

CONTROL Rfr/ rAD WAAsTrE F(,LZ6.Com~ponen~t:2(3)0Co5-A,4 2t L6Cfn4A,7t3)OC03 RECORD OF REVISIONS 12. Vendor Calce la Other Calcs 14. Siq natures IQ NOL 1i. DwSflipton d Revision I Number Rev. Requiring Revision Preparer Reviewer ApproverlDate, 0issue for use PSq -Atvecd A N/A I -~'*: 195Y7-,V.Ae 13 Is. Provides mnb to: NIA ________Wealed /4 Manual tan bws Receives Int from: t4/A4 0 computer Computer program and version Supersedes:

________________

0 Camp.-I CALC~0 REV. EV MANL.CALM.*1 ttTtti-1 ATTRIBUTES

  • REV. REV. IREV.REV. REV. REV.I. X X SOURCES OF DATA & FORMULAE WERE REVIEWED AND VERIFIED TO BE CORRECT AND COMPLETE.2. X X INPUT DA7A FROM SOURCES IN ITEM 11, ABOVE, IS CORRECT AND PROPERLY EMPLOYED IN THE CA.C. I ý-a x. x CALCULATION ASSUMPTIONS WERE REVIEWED AND FOUND TI) BE COMPLETE AND c VALID (ý4. X THE ANALYTICAL METHOD EMPLCIYED IN THE CAL.C HAS BEEN CONSIDERED AND ~ , IS PROPER FOR THE INTENDED USE OF THE CALCULATION. ( _a X MATHEMATICAL ACCURACY HAS BEEN CHECKED AND IS CORRECT (INDICATE METHOD USED): a)COMPLETE CHECK OF EACH COMPUlATION b) SPOT-CHECK OF SELECTED COMPUTATIONS WHICH ARE INITIALED IN THE 4A JA CALCULATION c) PERFORMANCE OF ALTERNATE OR APPROXIMATION CALCULATION PER ERDp 41 39 CALQ IS ATTACHED -li a X X CALCULATION RESUL75 WERE CHECKED AGAINST APPLICABLE.

DOCUMENTED s/A DESIGN CRITERIA AND FOUND TO BE IN CONFORMANCE.

7. X X EXISTING CALCULATION WHICH REQUIRE REVISION BECAUSE OF THIS CALCULA- l lION HAVE BEEN IDENTIFIED, a X THE ANALYTICAL METHOD DESCRIBED IN THE COMPUTER CALCULA71ON SUM-.MARY IS PROPER FOR THE INTENDED USE OF THE CALCULATION.

Ia X COMPUTATIONAL ACCURACY HAS BEEN CHECKED AND FOUND CORRECT (INDICATE METHOD USED): a) CHECK SAMPLE CALC. USING DATA OTHER THAN USED IN SAMPLE.b) PERFORMANCE OF ALTERNATE OR APPROXIMATE CALCULATION PER ERDP 3.9 Uv CALC. IS ATTACHEDII c) DESCRIBE OTHER METHOD IF 9.A OR 9.6 IS NOT USED.CO~,I~

NIIA4, ---I 10 7 1 OUTPUT IS REASONAB3LE CONSIDERING THE INPUT. ,ý__j 7I u4 U)'THESE ARE THE MINIMUM ATTRIBUTES AND ARE NOT INTENDED T0 LIMIT THE INITIATIVE OF THE CHECKER 10 REVIEW OTHER ATTRIBUTES.

ATTRIBUTES APPLICABLE TO MANUAL AND COMPUTER CALCULATIONS ARE NOTED BY AN (X) IN THE APPROPRIATE COLUMN. FOR CHECKING OF REVISIONS TO MANUAL CALCULATIONS, THE ATTRIBUTES MAY BE LIMITED TO ONLY REVISED PORTIONS OF THE CALCULATION.

CHECKER SHALL INITIAL EACH ATTRIBUTE COMPLETED.

I I ,f _a.PAGE ?- :ý& ý1& co PL M-20599 Rev. 2/89 STONE & WEBSTER ENGINEERING CORPORATION CALCULATION TMTE PAGE CLIENT PHILADELPHIA ELECTRIC CO. 7 PRO~JECT PEACH BOTTOM ATOMIC POWER STATION -UNITPAE3Ot CALCIJUATIN iTITLE (Indicative of the Objective)

QA CATEGORY ()Selsm,r 1F:va/uat/an o4e C,>nso/tdv 2(3).0CO 5A VI-ULARSFT 2 (t3)o c -04 A a -c 1 2 C:310oc 3 1,'e r A'49 a q55'J.O. OR W.O. NO. DIVSION & GROUP CALCULATION NO. OPTIONAL TASK CODE WORK PACKAGE NO.1957 Nm(c) PS-049 N/A N/A*APPRICVN..S-SIGN.ATURE

& DATE -7of ý-ý 15 REV. NO. SUPERSEDE CONIFIRM'N INDEPEN6EkT OR NEW -CALC. NO -REOD (PREPARER(S)

/ DATE(S) REVIEWER(S)

/ DATE(S) REVIEWER(S)

/ DATE(S) CALMC NO. OR REV. NO YES NO If, etqo1./ ",V1w A N/A Nl A 4-r/ds/ein

-paqes 5-5--C H Chen ',,// -54/ Aie.kM7..Paqes s 57-.60 IVI. `4.zZ~~ a /V ,A V GROXIP N a LDCKI1N__

COPY GFKP N4AME & LOCATIOIN_

COPY a.89/05/O1 0 RECORD MGMT. FILES/FIRE FILE IF NONE BOSTON 245/02 PROJECT FILE CO CHOC STONE & WEBSTER ENGINEERING CORPORATION SCALCULATION SHEET 5010.65 la CALCULATION IDENTIFICATION NUMBER JOB NUMBER DIVISIO(NC&

GROUP CALCULATIO0N NO. OPTIONAL TASK CODE PAGE 19597 NM(C PS-049 N/A 4 Table of Contents 2 3 4 7 10 11 12 13 14 15 le 17 18 19 20 PECo Title Page SWEC Title Page Table of Contents Revision Status Table 1.0 Introduction 2.0 objective 3.0 Design Input 4.0 References

5.0 Conclusions

page 1-2 3 4, 4a~5 6 6.0 Qualification of modification (MOD) 955 Supports/Braces ,W 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 O 42 43 44 45 48 6.1 Method 6.2 Analysis 10 11 34 35 36 36 38 38 48 49 51 51 6.2.1 Qualification of Support for 13 in. RWM CRT 6.2.2 Qualification of Panel Switch Support 6.2.3 Qualification of Supports for Digital Displays with Associated Electronics (Console 05A)6.2.4 Support for RWM Cable Connectors 6.2.5 Supports for Power Supplies (Console 05A)Supports for Electronics Boxes and Power Supplies (Consoles 04A and 03)6.2.6 Comparison of Calculated Stresses with Allowable Stresses 6-2.7 Deviation of Support Design for 13 in. 52a RWM CRT for Unit 2 Console 20C05A 6.2.8 Qualification of support for 6"1x6"'tracor westronics multipens recorder 46- -q Qa Ii -.t.- 0, Support For- ne~-' 6X 7.0 Assessife ftot e Impact of the Modification on the Existing Q Consoles and Q Devices 52 52b , 52 52d, 52ef 53 STONE & WEBSTER ENGINEERING CORPORAT'ION CALCULATION SHEET 501.5l CALCULATION IDENTIFICATION NUMBER JOB NUMBER DIVISION & GROUP CALCULATION NO., OPTIONAL TASK CODE PAGE 19597 NM (C) PS-049 IN/A 4 a Table of Contents 2 page 3 4 5 8.0 Assessment of the Impact of Non Q Devices on the Q 6 Devices and Consoles and Recommendation for any 7 modification if Required (for console 05A only). 55 o 9.0 Seismic Capability Limits of Existing Q Devices 10from SWEC/Vendor Data Bases (for console 05A only). 58.12 Appendix 1 Photographs of Walkdown 1-10 13 Attachment 1 voided pages11 14 15 9 16 Total pages* 17 81~19 O 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38.39*40 41@43 43 44 45 46 STONE & WEBSTER ENGINEERING CORPORATION CALCULATION SHEET 5010.86 Ct CALCULATION IDENTIFICATION NUMBER JOB NUMBER DIVISION & GROUP CALCULATION NO. OFPFTIONAL TASK CODE PAGE 19597 NM (C) PS-049 N/A 5 2 Revision Status Table 3 4 Rev. Page s No No. Description/reason s A Original issue -et -.she 5/. /,V. 0 144" 7 This revision is made to include the following changes: B,, 52a 1. Deviation of support design for RWM CRT for unit 2 10/.52b console 20C05A. This change is required due to space 11 52c availability of unit 2 console.12 2. Addition of a modification--r~eplacement of a Gemax 611x6f 13 52d computer trend recorder with a" 6"1x6" tracor westronics 14 52e multipens recorder.

This modification was not 15 originally planed for installation during the upcoming 1s outage.17 3. material changes for bolts, nuts, washers and screws to is 16 accomodate vendor deviation request.19 25 Replace page 16 with a new page..20 4. Revise seismic capability limits of existing Q devices 21 58 for clarification, and replace with revised page.22 23 Editorial changes related to the above revision are 24 identified below: 25 26 1,2 Update page number.27 3 1 28 4 Update table of contents to include changes for items 1 29 & 2 above.so 4a Update table of contents to include Attachment 1.31 6 Change note to read from "items 4 & 5"1 to "item 4"1.32 11 Add weight of tracor westronics multipens recorder.33 Atta.1 34 1,2 Attach voided pages 16 and 58 as Attachment 1 for record.35 2 Revision 2 includes the following changes: 37 6,11 1. Removal of the existing RWM operator interface and 38 52d replacement with a new 6"1 x 6"1 computer trend 3o 52f recorder.40 52g 41 54Editorial changes related to revision 2 are.42 identified below.43 1,2,3 Update page numbers.44 4&4a Update table of contents.45 5 Update revision sheet.48 STONE & WEBSTER ENGINEERING CORPORATION CALCULATION SHEET SOlO SB 2 2 3 4 6 7 8 9 10 11 12 13 14 15 16 17 18 19 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41.942 43 45 46 CALCULATION IDENTIFICATION NUMBER JOB NUMBER -DIVISION

&GROUP ICALCULATION_1NO.

OPTIONAL TASK CODE PAGE 19597 INM (C) PS-049 N/A 6

1.0 INTRODUCTION

PECo Nuclear Engineering Department intends to install additional devices on control room consoles 2(3)OC05A, 2(3)OCO4A and 2(3)0C03 (hereafter referred to as 05A, 04A and 03) during the upcoming outage in October, 1990 (ref. 1).This installation is identified as modification (MOD) 955, which involves mounting of the following devices: 05~A 1. Remove the existing computer trend Gemax recorder and install a new 13 in. Rod Worth Minimizer(RWM)

CRT 2. install a panel switch 3. Install two digital displays with associated electronics and power supplies.4. Remove old RWM operator interface and install a 611x6" computer trend recorder.5. Remove Gemax 6"x6" computer trend recorder and replace with_ .'x6"' Tracor Westronics multipen recorder 04A 1. Install a digital display with its associated electronics and power supply.03 1. Same as 04A The locations of the above modifications are identified on the attached sketches (pages 7, 8 AND 9).

A 7 aI- ks.... C-A I-33 L I Hr-MM -fs~ ftIw 0#-" R jQ &wf alS0RJ as*zft 4w 0006 SE Igo S .m ~ , 4 J~IM r-A. 7M 33 --) (7 wpp*0*Ip II Ia00~a ..q6I -4o~l, ma M c. ~ : -~L1 A)__~91 UX3Zifli "*? I"A P p 1 2 VIEW F see .dLM arfl.t-tI) 1t -14 1' (40 Ki mmf)LI CA" IAU CA J7 M n 9 acmL c= cU3 IM3 3M3C-lit FW-1 f~q ffrIM-0 CO n,5 0/1e -,5-A PAGE 8 lq5q7- NM~C )- Ps-o'-04 I' J' 'I ij 0 w6 0 I j I I, 4-qh'4-'a d.<-2 -I PAG E 9 0 / IS-97 -NMfC) p.-649 C-j-7J STONE & WEBSTER ENGINEERING CORPORATION CALCULATION SHEET 501'0-65 3 CALCULATION IDENTIFICATION NUMBER JOB NUMBER -DWiSION &GROUP ICALCULATIONNO.

OPTIONAL TASK CODE PAGE 19597 NX (C) PS-049 N/A 10 2 3 The above modifications involve cutouts of the console panel 4 to provide openings for mounting the devices, and attachment 5 of the devices to console structural members, etc. Therefore, s the impacts that may arise from the modifications need to be 7 addressed, which-are stated in the "Objective" section.10 2.0 OBJECTIVE 12 The objectives of this calculation are: 13 14 1. To demonstrate the adequacy of MOD 955 supports/braces.

15 16 2. To address the impact of the modifications on the existing 17 consoles and devices.19 3. To assess the impact of non 0 devices on the Q devices and* 20 consoles and provide resolution as necessary (for console 21 05A only).22 23 4. To provide seismic capability limits of existing Q devices 24 from SWEC/Vendor data bases (for console 05A only).25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 45 40 STONE & WEBSTER ENGINEERING CORPORATION CALCULATION SHEET 5010.65 16 CALCULATION IDENTIFICATION NUMBER JOB NUMBER DIVISIO0N

& GROUP ICALCULATION NO. OPINLTSIOE PG 19597 NM (C) PS04 N/A 11 2 3 4 5 a 7 3.0 Design input Weight of Devices (provided by PECO)Rod worth Minimizer(RWM)

CRT 35 lb Panel switch 5 2 a I RWM cable connector a 10 11 12 13 14 15 18 17 is Digital display Electronic box (P'x6(" e.,Wpu-ter-7-r-etd fiecorJe r Power supply Tracor westronics multipens recorder 1 2'20 4 20 Material 19.20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 38 37 38 39 40 41 O 42 43 44 45 46 A-569 sheet metal Bolt, A-307 Stud, A-108 Gr. 1010 or 1018 Screw, A-193, Gr B7 tjnistrut A-570, Gr 33 Sy ksi 25 105 33 Su ksi Ref .60 40-60 125 52 5 5 7*Metal Handbook, 8th ed. American Society for Metals**KSM Structural Eng. Aspects of Headed Concrete Anchor and Deformed Bar Anchors in the Concrete Construction Industry.Allowable Stresses, ksi A-569 sheet metal Bolt, A-307 Stud, A-lOS Gr. 1010.or 1018 Screw, A-193, Gr B7 Unistrut A-570, Gr 33 Support Sketches see attached sheets Tensile 0.6 Sy(15)26 -1.8 fv 0.33 Su(13.2)0.33 Su(41)0.6 Sy(19.8)Shear 0.4 Sy(10)20 0.17 Su(6.8)0.17 Su(21)Ref.6 6 6 0.4 Sy(13.2) 6 (pages 12 to 26--console 05A, pages 27 to 29--console 04A, pages 30 to 33--panel

03) 0 0 I CONSOLE 05A z6'~ / PREL, 19597-NM(C)-PS-049 page 1 2 INTERIM DRAWVI STATI ON PGAPS LOS N 0 SECTION M-M/ 3 0RW M CRT NOTES: '.& a~/5'4 ALL CONNECTIONS USING UNISTRUT BOLTS SHALL BE TORQUED TO THE FOLLOWING VALUES UNLESS OTHERWISE NOTED: 1/4" BOLT S FT-LB.1/2" BOLT SO FT-LB.I TEm NUL4BER PART DISCRIPTION CAT. NUMBER (D HEX HEAD BOLT 1/2"X 1 3/1 G" HHCSOSO11SEG 1 /2' WASHER HFLWOSOEG FLAT PLATE P1064 1/2' SPRING NUT P4010 /Z' NUT HHXNOSOEG CA.C/)02 z u')

0 EXISTING UMPut Vot P330i Smur P2330 STRUT Igil TO FIT 1 4 NOECU 135 O I P33DO STRUT EXISTING P3301 P1064 P 1064 1-NEI HEAD BOLT tir-is 4' LOBS, h-301 NOW.I SMOG IGHrT FIRuST NUT aORQUE SECOND oUr 10 :0 FfI4L DOETAIL 1 P3300 STNUT ( EXS2SISN P3360 0-1064 P1864 r ,.oc R-SOT SIh1 SBUG TIGHSTl FIBST BNOT & TORQUE SECOND NUT 1B 10 F-l-..DETAIL 2 I- P-3301 STRUT E I NoB P3351~-SEE DETAIL S SECTJION N-N di P1964 t124.... 7 .CAR ENCLOSURE DETAIL 3 DETAIL 4 19597-N4M(C)-PS-049 page 14

/I F I OF ENCLI!3A-IJS12C:

13 A -DSI ,3 A -OS1i 3c ,3 A -DS I 1/21 7 1 /8"-(TYP) 3 9 1 CUT OUT DRIL 4 HOE cur" IA DSURE 3 D, 4 7/B**0-7 TYP)NOTE: CHAMFER EDGE OF HOLES TO CLEAR SrUD WELD C *upout JYop- /)It'"~/PIsP /p/as 0 6a.tovt yi4r / 3 A"CA Ta,,d P,2n'el ý'wlAd&b 19597-N M(C)-PS-049 page -15

/175q 7-:VAlcC.) -p.s~4 q'ae 16 PANEL FRONT --,, IROUTE 25011_1/4"-20 HEX NUT A-663-A & 1/4' FLAT WASHER SUITABLE/WITH A-1O8 STUOS ANO A-563-A NUTS. (TYP. 12 PLACES)FOR USE IA ENCLOSURE Appqny-1/4" BAR STOCK XIS-80193 (UNIT 2)XIS-S90193 (UNIT 3)1/4"-28 X 7/8" FLAT HEAD SCREW A-307 A (TY 2 PLACES)SEE AIL 1 (TYP. 4 .PLACES)i/4"-28X 1 1/4" LONG FLAT HEAD MACHINEI SCREW A-307 (TYP 8 PLACES)NOTE: EXCESS SCREW THREADJS MAY BE CUT AS REQUIRED.TRAY 7CONNECTION PER MANUFACTURER'SAPRX REGURIEMENTS -r P%, DRILL & TAP 1/4"-28 (T YP.)DETAIL 1 J 0 1-i THIS IUCN SUPERSEOES M-1 -EE-1 24 SHEET 8 I10C N "M " INTERIM DRAWING CHANGE NOTICE STATION UNIT PBAPS [CS C 1 2 3 m 0 0 ] DO m PHILADELPHIA ELECTRIC COMPANY MOD DRAWING ISHEET T7R-EV. -II'DC N p----------------

----- ----------------------

NOTE: CONNECTION OF TRAY TO CRT CHASSIS PER MANUFACTURER'S REQUIREMENTS 96G -I-EE-1Z4 PRELIMINARY DRAFT MOD MOO ISSUE ISSUE 0 I SSUE M~DAE OEINO HKO. APPS SRL.~F-CONNECTION PER MANUFACTURE REQURIEMENTS 0193 & XI S-901 93 DESCRIPTION:

186160041 OZ38SES MOD oSGS ADDED: ASSE MOLY DETAIL FOR DEVICE XES-80193

& XIS-90193 XI S-8 ASSEMBLY LIETAI L DRL S/6 HOLE " FO AUSE FIT OF SCREW HA DL ---12 1/2" *-OPENING II TA II1 3/4'~TRAY VIEWTRAY RIGHT SIHE VIEW 19597-NM(C)-PS-049 page 17 N I-SigGAGE SHEET MEtA NTRAY ... TYP 2 PLACES)N

  • GPENiHG-I --------_ -------Sý, 1Na L14 I/ l2 a 31 INTERMITITENT TRAY REAR VIEW TRAY TOP VIEW'9 5 97-NM(C)-.PS..049 page I t I V18 TRAY LEFT SIDE. VIEW 1 9597-NM(C)--PS-o49 page 19' 11d el .-7-(TYP 12 PLACES), 307 ji4--O :U /4 OGcryi1/9 2 a*I1/ ----- , 51 4--31i2 -RILL I TAP FOR 1/ie-Za SCREW-- --(TyP Z PLACES)-~ N NLAR 12 5/8" l2 SIB" N1 -'2 OPENING I~ -,56-N-I.*.*7 9/1?A
  • I'
  • 1 710 AESEE"EA COLLAR~~ SIEVENOLRFOTVE 1 9597-N M(C)-PS-049 page 20 0 SEE ETkL Z-0 ENCLOSURE FRONT VIEW CL Ul)a-z DETAIL 2. EAI OETAIL I ENCLOSURE SIDE VI EW ENCLOSURE REAR VIEW 19597-NM(C)-PS--049 page 22 2 I 3 2 0 JROUTE 2S(NO-0T ES: ALL :MNXECX0W1 USING ONI STRUT DOLTS S A TORQUE D TO TO WEOLLOW ING VALUES3 UNLE IS E 1/4* BOLT? 6 FT-LB.1/2 BOLT .50 FT-LB.SECTION Q-Q ( See Page 12 )Po wier supplies F 0)4T 0.J)I z SECTION P-P ( S-en ,04.f* i)

MA? ý.TURV NUMBER PART DISCRIPTION

_ CAT. NUMBER (D HEX HEAC OL 9 1 4" Ir 1 iZ" HHSZIGE ( TR I M0 TO LENGTH) ICOSSE (D 1/4" WASHER HFLW07SEG FLAT PLATE fP1062 1/4" SPRING NUT P4006-1420 P3301 DIETAI.L 2 B a A CONNECTION PER MANUFACTURER'S REOUIREMENTS DETAIL I-is 19 97-NM(C)-PS-049 page 2-4 133HHS 6IS 41 LROUTE 251 ASSEMBLY DIETAILS I ,11 0Aex.,tA 53- & 114,"{/otwoshersut,,t46e I r,Wo1e kvwtA A -10i5on g*4dapL -6,63-A A/'t.s (Typ., #P1~)A-(ý 307 NUT i W ASýHERýE/E-50187C Ty L S 25.' _ _ _ _ _ACES 0 0 0 W.ALL WE.LtDIHG SI"ALL 'B E UT"H LOW $YDiZOGIE E-1oX)ELSCTRODE.

V4I AICCORDAIWCF.

AwS Pq-t Or, AWS W-1 CODE.MOUNT PER MAANUFACTURER'S REQUI REMENTS ( TYP. 2 PLACES)XI -90187B X1 -901 87C EIE -501 878 251/0 Xi: -901879 zaa ZPANEL FRONT 30COSA TRAY SIDE VIEW I ZPANEL FRONT 30CO SA MUTPER MANUFACTURER'S REQUIREMENTS TYP. 2 PLACES)TRAY TOP VIEW plql/a/ Pispl/ays

&'cl/ectronies Roxei C0050140e 0 EA 19597-N M(C)-PS-049 page' 25 0 FABRI CATI ON DETAI LS s+LijoI web' Or TRAY FRONT VIEW I ME~6 7/a" ~SIDE VIEW TYP 2 PLACES)TRAY REAR VIEW 19597-NM(C)-PS-049 page 26 0 0 IROUTE 250,1.2 PHILADELPHIIA ELECIRIC COMPANY INTERIM DRAWNING CHANGE NOTICEt-DRAWI NG I SHEEI I REV. JIIOCN 0 STAl1 ON PSAPS LCS E UNI T C 12 3 SSGG I M-I- EE -C7 I I 1 z2' 1 PRELI MINARY I SSUE DRAFT MOD I SSUE ED MOO I SSUE DATE IDESIGNI CHKO.STRL.E.A. 8616.0041 REF. 073SGS5 MOD 8 SSG ADDEE. SEC.TIONS E-E 4 F-F 0 CONSOLE 0 4A ( Paqe 27- 2,q) 11 0 0 SECTION F-F EL:ec rii bc lox CD CD, Ia-0)U)C" Power Supply (ýrfTTnfN E -E

( See 19a 9 e 3 2 $,.,r / &An, dpescr.pftlo m s )EXISTING P3300 STRUT I CONNECTION PER REOUI REMENTS DEf-^T A IL 1 APRO.-AAPPROX.CONNECTION PER MANUFACTURER'S REDUIREMENTS E/S-90187D EXISTING P3301 STRUT--\ 137 DETAIL Z_19597-N M(C)-PS-049 page 29 iROUTE 75011 Q P'I NTERI M, DR""-j L]PHILADELPHI1A El lNIN I 1 73 I.;0 LECTRIC COMPANY moo RA21 I SHEET REV. IlOCH rPREtIUINARY DRAFT MOD moo ISSUE 0 ISSUE 0l ISSUE+ DATE I DES]GIEN CHKq.j APPR. STRL.DESCRIPTION:

PAC I F E..8515.0041

ýREF. 0739955 MOD 955G 1ADDED SECTIONS P-P & 0-0 PANEL 03 ( Pae4-S'3 -3 3).1~~~~.1 ____________________________________

I 19597-NM(C)-PS-o49 page -30 F E* ~~R-RL -_~ box.0 R-pRrsuoi P3300 STRaUT R-R L APPROX.R R 8~ 14 /2-S E C IT 10 N P -P 19597-NM(C)-PS--049 paýe3 SECTION 0-0 1 IROUTE 25011 NOTES: 1. ALL CONNECTIONS USING UNISTRUT BOLTS SHALL BE TORQUED TO THE FOLLOWING VALUES UNLESS OTHERWISE NOTED.1/I4' BOLT 6 FT-LB.1/2' BOLT SO FT-LB.NUIJSERJ PART DESCRIPTION CAT. NUMBER HEX I EA TOL1/X 1 ENGTH HHCSOZ5ISOEG

's'r(CUT BOI"LENTH)4" l O I1/4' WASHER HFLW02SEG IFLAT PLATE P1062 1 1/4" SPRING NUT P4006-1420 0 HEX HEAD BOLT 1/4"X 3/4" HHCSOZ507SEG 0 1/4" NUT IHHXNUZSEG' F I E 19597-N M(C)-PS-049 page 32 0 11 GAGE SHEET METAL A -569 P1062 ( TYP)I I CONNECTION PER MANUFACTURER'S REQUIREMENTS P3300 STRUT RUT SEE DETAIL Z (SECTION VIEW)FOR CONNECTION DETAILS ( TYP)ý'-P1062 (TRIM TO FIT)-NOTE: DRILL S/16-, HOLE IN P 300 STRUT FOR BOLT PLACEJLEN I SECTIOUN P-F?i NOTE: DRILL S/hE" H4OLE IN P3300 STRUT FOR BOLT PLACEMENT DETAIL 1_11 GAGE SHEET METAL -A-SB S ICONNECTION PER MANUFAC7URER'S REQUI REMENTS EXISTING SHEET META L ~ -P3300 STRUT NOTE: DRILL 5/16" HOLE IN P3300 STRUT FOR BOLT PLACEMENT DETAIL 2-1 9597-N M(C)-PS-049 page 33 DETAIL 4.

STONE & WEBSTER ENGINEMRNG CORPORATION CALCULATION SHEET 5010.05 17 2 3 4 5 7a CALCULATION IDENTIFICATION NUMBER JOB NUMBER -tIVISION

& GROUP CALCULATION NO. jOPTIONALT TSK CODE PAGE 19597 _NX (C) PS-049 IN/A 34 4.0 References

1. TSD for Seismic Evaluation of Consoles 2(3)OCO5A, 2(3)OCO4A and 2(3)0C03 for MOD 955, Peach Bottom Atomic Power Station, Units 2 & 3. TSD no. P-0048.2. PECo drawing 6280-M-1-EE-124(l), rev. 58. console 05A a 9 10 11 12 13 14 15 1s 17 18 19 22 23 24 25 28 27 28 29 30 31 32 33 34 35 38 37 38 39 40 41 O 42 43 44 45 48 3. PECo drawing 6280-M-1-EE-67, rev. 29. console 04A 4. PECo drawing 6280-M-1-EE-100, console 03 5. ASHE Boiler and Pressure vessel, Division 1,Section III, Appendix 1, 1980 6. AISC-Manual of Steel construction, 8th ed., 1980 7. Unistrut General Engineering Catalog No. 9, 1981 8. Final Safety Analysis Report. Vol. 1, Peach Bottom Atomic Power Station, Units 2 & 3.9. Seismic Qualification of Class 1 Electrical Equipment, NEDO-10678,72NED81, Class 1, Nov. 1972, GE 10 General Project Requirements for Seismic Design and Analysis of Equipment and Equipment Supports for Peach Bottom Atomic Power Station, Units 2 & 3, PECo Spec.11187 -G-14.11 Formulas for Stress and Strain, Roark and Young, 5th ed.McGraw-Hill.

12 Marks' Standard Handbook for Mechanical Engineers, 8th ed.McGraw-Hill.

13. Bechtel Corp letter to Philadelphia Electric Company, E.A.Patel to T.E.Shannon, "Contol Panel Anchorage Modification 2376,w September 16, 1988, BLP 24646, Document Control No. 024749 14. General Electric Company Drawing No. 730E696, file no. 6280-M-I-EE-124-(?)-rev-59:

annotated by PECo in three versions to highlight:

a. All Q-list items per QLAR #115 b. Equipment types and locations C. Panel known modifications
1. General Electric Seismic Qualification Reevaluation Class 1E Equipment , Rev. 4, 4/ 11/86.

STONE & WEBSTER ENGINEERING CORPORATION CALCULATION SHEET 5010.85 24 CALCULATION IDENTIFICATION NUMBER JOB NUMBER -0WISION &GROUP ICALCULATION NO. OPTIONAL TASK CODE PAGE 19597 NM (C) PS-049 N/A 35 2 3 5.0 Conclusions 4 Based on the analysis and evaluation presented in this e calculation, the following conclusions can be made: 8 1. The mounting supports for the installation of new devices identified in MOD 955 are atructurally adequate 10 to withstand earthquake loads.12 2..The modifications to the consoles have been designed and 13 proven to have no impact on the structural integrity of 14 the consoles and the existing device qualifications.

15 16 3. Console 05A is concluded to have no unacceptable II/I 17 interaction.

19 4. Seismic capability limits of existing Q devices on 20 console 05A are tabulated in Section 9.0.21 22 5. The support designs for the installation of new devices 23 identified in MOD 955 are acceptable for units 2 and 3 24 consoles.

However, for unit 2 console modifications, 25 constructibility shall be reviewed to ensure that 28 sufficient spaces are available at the identified 27 locations for the installation of the new devices.28 29 30 31 32 33 34 35 38 37 38 39 40 41 42 43 44 45 46 STONE & WEBSTER ENGINEERING CORIPORATION CALCULATION SHEET CALCULATION IDENTIFICATION NUMBER JOB NUMBER ..IWJSION &1 GROUP ICALCULATION NO. OPTIONAL TASK CODE PAGE 19597 NM (C) PS-049 N/A 36 2 3 6.0 Qualification of MOD 955 Supports/Braces 4 5 support designs for MOD 955 proposed by PECo as stated in a the previous section are shown on the attached 7 sketches(section 3.0) in the order listed below: U Console 05A 10 11 1. 13 in. RWM CRT 12 13 2. Panel switch 14 1s 3. RWM cable connector 17 4. Digital displays and associated electronics 19 5. Power supplies 20 21 Console 04A 22 23 1. Digital display 24 25 2. Electronics 26 27 3. Power supply 28 29 Console 03 30 31 Same as 04A 32 33 6.1 Method 34 35 In this section, conceptual designs for MOD 955 supports 36 provided by PECo will be analyzed to the requirements of 37 AISC (ref. 6) to ensure that they are structurally adequate 38 to withstand seismic loads. in addition, these supports 39 will also be verified to ensure that they are sufficiently 40 rigid so that local modifications will not affect the nearby 41 existing device qualifications.

43 To this end, the frequencies of the local frames or u mounting plates will be verified to show that they are in 45 the rigid range of seismic response spectra.4.

STONE & WEBSTER ENGINEERING CORPORATION CALCULATION SHEET 501.6 4a 0,65 CALCULATION IDENTIFICATION NUMBER JOB NUMBER DIVISION &1 GROUP ICALCULATION NO. OPTIONAL TASK CODE PAGE 19597 NM (C) P14- 0 49 N/A 37 2 3 .Seismic Loads 4 5 Control room consoles are located at floor elevation 165 6 ft. in the Radwaste Building.

For this analysis response 7 spectra at elev. 165 ft. for maximum credible earthquake a are used with a 2 % damping value for welded steel o assemblies (ref. 8).10 11. The appropriate acceleration values to be used depend on 12 the frequency of the console to which the devices are 13 mounted. The consoles are supplied by GE and are qualified 14 with generic method as stated in reference

9. Based on is this reference and the past experience with other operating 16 plants, the consoles are most likely in the rigid range.17 However, for the evaluation of these modifications peak is accelerations are used, since specific information 19 regarding these consoles is not available.

20 21Horizontal A 1.32 x 2 .4 x (1.5)' =4.75 g (ref. 8,10)22 23 Vertical Av = (2/3) A =3.2 g* 24 25 Supports are analyzed for seismic loads in N-S and vertical 26 directions, and E-W and vertical directions.

For each case, 27 responses due to the horizontal and the vertical directions

  • 28 are added absolutely.

29 30 31 32 33 34 35 30 37 38 38 40 41 44.45 STONE & WEBSTER ENGINEERING CORPORATION CALCULATION SHEET 5010.85 5 0 CALCULATION IDENTIFICATION NUMBER jOB NUMBER -=4~SION & GROUP CALCULATION NO. OPTIONAL TASK CODE PAGE 19597 1NM (C) PS-049 I N/A 38 1 2 3ý4 7 9 10 11 12 13 14 1s 18 17 is 19 22 23 24 i5 28 27 28 29 30 31 32 331 34 35 381 37 38 39 40 41 O 42 43 45 48 6.2 Analysis 6.2.1 Qualification of support for 13 in. RWM CRT(see sketch .es on pages 12 to 22)The configuration for CRT support is shown on the attached sketches.

The CRT is enclosed in a can (box) which is mounted at the front panel and supported at the back by a support frame. For qualification of this support, the following three parts of analyses will be performed:

Frequency evaluation Support frame qualification CRT can and tray mounting qualification Frequency evaluation

a. Weight of CRT and mounting devices Tray: .12 gage sheet metal t = .1046 in. (ref. 6)13 x 14 2((M/2) (10 + 3) x 13)= 182 sq in.169 351 x.1046 x.283 = 10.4 lb Tray flange: 10 gage sheet metal t = .1345 in. (ref. 6)2[1/2 (18 -13.75) x 12.51 14 x 1-53-14 67 x.1345 x.283 = 2.6 lb Can: 12 gage 2 x 16.75 x(12.5 +17.125) =992.4 Can flange: 12 12 x 1 x 2 17.125 x 1 gag re 24 17 41 x.1046 x.283 x.1046 x.283 = 29.4 lb-1.2 lb STONE & W83STER ENGINEERNG CORPORATION CALCULATION SHEET 5010.65 a CALCULATION IDENTIFICATION NUMBER JOB NUMBER i e#ISIION & GROUP CALCULATION NO. OPTIONAL TASK CODE PAGE 19597 INM (C) PS-049 N/A 2 3 Collar flange: 10 gage 4 12.5 x 1.435 x2 -36 B16 x1 -16 7 52 Tx.1345 x.283 -2.0*Total 45.6 lb 10 Weight of CRT 35 lb 11 Miscelleneous 9.4 lb 12 13 Total 90 lb 14 16 b. Frequency of supporting frame in X- direction 17 18 .Consider that the total weight is equally distributed to 19 the front panel and the unistrut frame.@21 W -90/2- 45 lb 22 23 f -1/ (2 IT ) x sqrt [ g/ A 1 24 (ref. 11)25 b 20 ~ Wa b(3L+a)/(12EIL-3) 27 (ref. 6)28 =.000733 in.29I a 30 jwhere 31 1 = .181 for P3301 (ref. 7)32 33 E = 29000000.

psi 34 35 W -45/2 -22.5 lb 36 37 L -26 in.38 39 a -10 in.40 41 b =16 in.42 43 386.4 in/sq sec.45 f =115 Hz.40 7 STONE & WEBSTER ENGINEERING OCORPORAMiN CALCULATION SHEET 5010.66 7 CALCULATION IDENTIFICATION NUMBER JOB NUMBER D.MSON I GROUP ICLUAION NO. OPTIONAL TASU CODE PAGE 19597 NX (C) PS04 N/A I40 2 c. Frequency of supporting frame in Z-direction 3 (front-to-back) 4 5 The CRT is supported by the panel at the front and by a the unistrut frame at the back. In the front-to-back 7 direction, the front panel is braced with a box made of a sheet metal, which is then connected to the frame. Thus,* the front panel and the frame support unite together in 10 resisting the motion in the Z-direction.

For frequency 11 estimation, however, the rigidity of the front panel 12 will be totally neglected and the total weight will be 13 conservatively attributed to the frame support and 14 applied at a single point(not distributed

+/- 3").15 17 f / -1(2 71) x sqrt (g/A 19 A=Wa 2b 2/(3EIL) -.001732 in 20@21 f"where 23 W -45 lb 24 3 Ta -10 in.25 b = 16 in:.2a6 I = .294 iA 27 L -26 in.28 29 f -75 Hz..30 31 Noted that the flxibility of the cross piece has been 32 neglected by virtue of the other conservatisms.

33 34 d. Frequency of supporting frame in the vertical direction 36 36 Based on the support configuration, the support is much 37 stiffer in the vertical direction than in the horizontal 38 directions, since the frame is stiff in the vertical 30 direction, and is connected to an existing unistrut 40 which is welded to the top panel. Thus, the frequency in 41 the vertical direction is higher than that in the 42 horizntal directions.

43 48 STONE & WEBSTER ENGINEERING CORPORATION CALCULATION SHEET 5010.66 a CALCULATION IDENTIFICATION NUMBER JOB NUMBER --4VISION & GROUP CAiLCULATION NO. OPTIONAL TASK CODE PAGE 19597 NM (C) PS-049 N/A 41 2 Support Frame Qualification 3 4 a. Support loads 5 a The vertical bench board and support frame are slanted 20 7 degrees from the vertical.

Therefore, support loads in x, a y and z directions will be converted into the directions in 9 line with the supporting directions.

11 Dead weight W = 90 lb 12 13 Fl = W sin 20 = 31 lb 14 F2 -Wcos 20 =851lb 16 Seismic loads 17 18 y-direction 19 20 FY- 90 x 3.2 =288 lb W21 F1 = 99 lb F 22 F2 =271 lb 23 y 24 z-direction 25 26 Fz = 90 x 4.75 =427 27 Fl 427 xcos 20 = 401 lb 28 F2 = 427 x sin 20 = 146 lb 30 x-direction 31 32 Fx -90 x 4.75 -427 lb 33 ~ F3 -4271lb 34 35 Dead wt.4-seismic load(x + y) Dead wt.+seismic load(y + z)38 37 Fl 31+99 -130 lb F1 = 31+99+401

= 531 lb 38 F2 =85+271- 356 F2 =85+271+146

= 502 39 F3 =427 F3 = 0 40 41 42 44 45 46 9 STONE & WEBSTER ENGINEERING OOV4PORATION CALCULATION SHEET 5010.669 CALCULATION IDENTIFICATION NUMBER JOB NUMBER 6IIIN a GROUP CALCULATION NO. OPTIONAL TASK CODE PAGE 19597 N(C) PS-049 N/A 42_2 b. Frame analysis due to dead wt. + seismic load(x +y)3 4 The loads are considered equally distributed to the front 5 panel and the support frame and then equally distributed to a each of the two vertical members.7 a F1 -130/4 -32.5 lb 9 F2 -356/4 -89 10 F3 -427/4 -107 12 vertical member-- P3301 (ref. 7)13 14 A =.794 sq in. F F 15 Z1 .207 cu in.i6 Z3 *.362 cu in. F 2 17 is R1 F1ix 16/26-20 lb R.19 R2 -F2/2 -44.5R@21 R3 -F3xbZ 1(272 )x (a + 2L) R 22 -48 23 24 X3 -Rlxl10 -200 in-lb 25 X1-R3xl10

-480 26 27 R2/A -56 psi 28 M3/Z3 *552 29 Mi/Zi 2319 30 Total -29I27 psi 31 32 Horizontal member--P3300 (ref. 7)34 A -.397 sq in.2 38 Z1 .078 cu in. Iv 36 Z2 -.181 cu in.38 X1 -R2 x 8.6 -382.7 in-lb 39 M2 -R1 x 8.6 -172 40 41 R3/A 121 psi 42 Mi/Zi 4909 43 M2/Z2 -950 45 Total -5980 psi 44 to 2 3 STONE A WEBSTER ENGINEERNG CORPORATION CALCULATION SHEET 5010.66 10 CALCULATION IDENTIFICATION NUMBER JOB NUMBER ~ IISION & GROUP CALCULATION NO. OPTIONAL TASK CODE PAGE 19597 NM(C PS-049 N/A 4 Brace mernber--P3300 A =.397 sq in.Z1 = .078 cu inl.Z2 -.181 cu in.4 5 a 7 8 9 10 11 12 13 14 P1 -2(R1 sin 25= 98 lb P3 -2(R1 Cos 25= 74 lb+R2 COB 25)+ R2 sin 25)R2 2 Q 1s 16.17 18 19 22 23 24 25 26 27 28 29 30 31 32 33 34 38 37 38 38 40 41 42 43 M2 = P1 x 6 =588 in-lb mi = 2R3 x 6 =576 P3/A =186 psi M2/Z2 =3249 Mi/Zi 7385 Total =10820 psi C7 STONE & WEBSTI ENGINEERING CORPORATION CALCULATION SHEET 5010.6 11 2 3 4 7 10 11 12 13 14 is 17 18 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 38 37 38 38 40 41 42 44 45 4a CALCULATION IDENTIFICATION NUMBER JOB NUMBER *DM1VSON & GROUP CALCULATION NO. OPTIONAL TASK CODE PAGE 19597 f NX (C) PS-049 N/A 4-4 c. Frame analysis due to dead wt. + seismic load(y +z)The loads are considered equally distrbuted to the and the support frame and then equally distributed.

the two vertical members.F1 = 531/4- 133 lb F2 -502/4 =126 F3 =0 vertical member-- P3301 (ref. 7)A =.794 sq in.-Zi .207 cu in.Z3 =.362 cu in.R1 F1 x 16/26 =82 lb R2 F2/2 63 R3 =0 M3 =R1 x 10 = 820 in-lb R2/A =79 psi M3/Z3 2265 Total 2344 psi Horizontal membdr--P3300 (ref. 7)front panel to each of R 2 A =.397 sq in.Z1 .078 cu in.Z2 -.181 cu in.2 I4Vz 8.~ K Z'R 2 M1l R2 x 8. 6 -542 in-lb M2 =R1 x 8.6 -705 R3/A =0 psi Mi/Zi 6949 M2/Z2= 3895 Total =10844 psi I0 STONE & WEBSTER ENGINEERING CORPORATION CALCULATION SHEET 5010.66 12 2 3 4 7 10 12 13 14 15 16 17 16 1, 0:0 22 23 24 25 26 27 28 30 31 32 33 34 35 36 37 38 39 40 41 02 45 48 CALCULATION IDENTIFICATION NUMBER JOB NUMBER DIVIION A GROUP CALCULATION NO. ~OPTIONAL TASK CODE PAGE 19597 NX (C) PS-049 N/A 45 Brace member--P3300 A -.397 sq in.Z1 -.078 cu in.Z2 -.181 cu in.P1 -2 (R1 sin= 184 lb P3 -2 (R1 cos.202 lb 25 +R2 cos 25)25 + R2 sin 25)X2 -P1 x 6 -1104 in-lb P3/A -509 psi X2/Z2 -6099 Total -6608 psi d. Unistrut Connections The above analyses show that unistrut members are subjected to a maximum applied load of less than 150 lbs. The design load data for typical unistrut channel connections as shown in reference 7 are 1000 lbs or larger. Therefore, the connection parts used in the support designs are adequate.

STONE & WEBSTER ENGINEERING CORPORATION.CALCULATION SHEET 5010.85 13 CALCULATION IDENTIFICATION NUMBER JOB NUMBER OIVIDWSION

&1 GRO1UP ICALCULATION NO. OPTIONAL TASK CODE PAGE 19597 NM (C) PS-049 N/A 46 2 3 4.7 9 10 11 12 CRT can and tray qualification The CRT is mounted to the bottom sheet metal of the tray by four screws. The tray is connected to two tracks , one on each side of the tray. The tracks are then mounted to the can which is mounted at the front panel and supported at the back by a frame. The detailed configuration is shown on the attached sketches.a. CRT mounting 13 14 1s 17 1s 19 22 23 24 25 28 27 28 29 30 31 32 33 34 35 38 37 38 39 40 41 02 44 45 48 Weight of CRT = 35 lb Dead wt + seismic load(y+z)*F1 = 206 F2 = 195 Dead wt + seismic load(x+y)*F1 = 50 F2 = 138 F3 = 166 CRT mounting screws: 4- 1/4"1 dia. screws*These loads A -.0362 sq in. (ref. 12) derived using same Tensile stress = F2/(4A) -1347 psi methodology Shear stress -(F1 + F3)/(4A) =1492 psi found in the previous Sheet metal bearing stress section.12 gage, t = .1046 in.Bearing stress = (Fl + F3)/(4td)

=2065 psi b. Tray mounting Weight of tray =10.4 + 2.6 =I Weight of CRT Total Dead wt + seismic load(y+z)*Fl = 283 F2 -268 48 lb Dead wt + seismic load(x~y)*Fl = 69 F2 = 190 F3 = 228 STONE & WEBSTER ENGINEERING CORPORATION CALCULATION SHEET CALCULATION IDENTIFICATION NUMBER 0JOB NUMBER -DIVISION

& GROUP CALCULATION NO. OPTIONAL TASK CODE PAGE 19597 INM (C) PS-049 N/A 47 2 Force F2 is resisted by the tracks, and force F1 is resisted 3 by the tray flange which bears against the front panel.4 Force F3 does not induce any load to the connecting screws 5 between the tray and the tracks, since both sides of the a tray bear against the tracks.7 8 Tray mounting screws: 6-#5 screws, A -.0082 sq in. (ref. 12)10 shear stress -F2/(6A) =5447 psi 11 12 Track mounting screws: 8-1/4"1-28 screws, A .0362 sq in.13 14 shear stress -(F2+F3)/(8A)

=1443 psi is I6 Tray flange: 10 gage, t = .1345 in.17 is Tray opening H = 13 3/4"1 19 Collar opening H -15 1/81"*20 Moment arm a = (15 1/8 -13 3/4)/2 = .6875 in.22 M =Flx a /2= 97 in-lb 23 Z = 1/6 (bt^2) = 1/6 x [(10) (.1345)^21

= .03 cu in.* 24 M/Z = 3243 psi 25 Weld: 1/8"1 fillet weld on two vertical sides is adequate 26 27 c. Can mounting 28 29 Dead wt + seismic load(y+z)

Dead wt + seismic load(x+y)30 31 Fl = 531 lb F1 = 130 lb 32 F2 = 502 F2 = 356 33 ~F3 =427 34 35 Connection between can and unistrut P3301 38 37 six 1/2"1 bolts: bolt strength is more than adequate.38 39 Sheet metal bearing stress = (F1+F2)/2]/(6td).

= 1644 psi 40 41 Connection between can, console pl. and collar flange 42 43 Twelve 1/4" studs: bolt strength is more than adequate.44 45 Sheet metal bearing stress -((F2+F3)/2]/(l2td)

=1248 psi 46 STONE & WEBSTER ENGINEERING CORPORATION CALCULATION SHEET 5010.65 15 2 3 ICALCULATION IDENTIFICATION NUMBER JOB NUMBER 1"ISION &1 GROUP CZALCULATION NO. OPTIONAL TASK CODE PAGE 19597 NM (C) PS-049 N/A 48 6.2.2 Qualification of Panel Switch Support Panel switch is mounted to two brackets beneath the bottom sheet metal of the CRT can as shown on the attached sketches.

The switch weighs 5 lb.Frequency Evaluation 4 7 a 9 12 13 14 Moment of inertia of the brackets I = 1/12 (2) (1/4)^3 = .0026 f -1.732/(2 7t ) x sqrt[EIg/(WL-3)]

=413 Hz (ref. 11)where 16 16 17 1s 19 20 A W 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 361 37 38 39 40 41 42 45 46 L -2.75/2 1.375 in.W -5 lb Panel Switch Mounting Dead + seismic load(y~z)Fl = 30 lb F2 = 28 Brackets Dead + seismic load(x+y)Fl 7 lb F2 = 20 F3 = 24 A = 1 x .25 -.25 sq in z -(1)(1/4)^2

/6 -.0104 cu in.M = 30 x 2.75/2 = 41.3 in-lb F2/2A =56 psi M/(2Z) =1986 Total 2042 psi Sheet metal z = (1) (.1046)-2/6

=.00182 M/(2Z) =11346' psi Weld: 1/8"1 fillet weld on both sides of the brackets is adequate.

STONE & WEBSTER ENGINEERING CORPORATION CALCULATION SHEET 5010.65 is I1.2 3 4 7 10 CALCULATION IDENTIFICATION NUMBER JOB NUMBER --GIVISION &1 GROUP CALCULATION NO. OPTIONAL TASK CODE PAGE 19,597 rN14(C) PS-049 N/A 49 6.2.3 Qualification of Support for Digital Displays with Associated Electronics (Console G5A)This design provides support for two digital displays and two electronics boxes. The digital displays are mounted on a cover plate and the electronics are mounted on a tray which is welded to the cover plate as shown in the attached sketches.13 14 17 19 22 23 24 25* 26 27 28 29 30 31 32.33 34 35 38 37 38 38 40 41.44 45 48 weight of tray cover plate: 10 gage 6 7/8 x9 1/8 = 63 sq in.x .1345 x.283 -2.4 lb sides 2(4 x 9 3/8) -75 bottom 6.75 x 9 3/8 -63 138 x .1046 x.283 top tray 2(1.5 x 7)6.75 x 7 sub total Digital displays 2 x 1 Electronics 2 x 2=21 47 68 x .1046 x.283 = 2=4.1 lb 9 lb 2 4 Total 15 lb Frequency Evaluation Iz.3 y =111+1 y 2(4 x 2)/(8 + 6.75) =1.08 in.13 =2[(4)^3 /12] 10.67 2(4) (.92)^2 =6.77 6.75 x(1.08)^2

= 7.87 25. 31x. 1046=2.65 I cj STONE & WESTER ENGINEERING CORPOIRATIION CALCULATION SHEET 5010.05 19 SCALCULATION IDENTIFICATION NUMBER JOB NUMBER DM*ISON & GROUP CALCULATION NO. OPTIONAL TASK CODE jPAGE 19597 NX (C) PS-049 I N/A 50 2 3 4 50 S1 10 is 13 19 217 22 23 24 25 20 27 28 29 30 31 32 33 34 36 30 37 38 39 40 41 43 44 6.2"= 15 2.4 -10.6 lb= 1.732/(2*r) x sqrt(EIg/(WL^3)

-546 Hz Dead wt + seismic load(x~y)F1 -22 lb F2 -59 F3 -71 Tray Mounting Dead wt + seismic load(y+z)F1 -89 lb F2 -84 F3 -0 Envelope load F1 = 89 lb F2 -84 F3 -71 mounting studs: Due to F2 Due, to F1 Due to F3 Total four 1/4"-20 studs A -.0317 sq in.M3 -84 x 6.2 -521 T X 3/[2(4 7/8)]V -84/4 T -89/4 M2 71 x 6.2 -440 T -M2/ [2 (7.125)]V -71/4 T -53 + 22 + 31 V 21 + 18 in-lb-53 lb 0 21 a 22 in-lb-31 is1-106 lb-39 Tensile st -ress -T/A. 3344 psi Shear stress -V/A -1230 STONE & WEBSTER ENGINEERING CORP5ORATION CALCULATION SHEET 6010.68 20 CALCULATION IDENTIFICATION NUMBER JOB NUMB-ER 7 DL1VISION

& GAOUP CACLATION NO0. OPTIONAL TASK CODE PAGE 1957 N() jPS-049 N/A 51 2 3 4 10 11 12 weld 42 A 8 Z2 -4x6.75 -27 Z3 -16/3 -5.33 f -sqrt[(F1/A+M2/z2+M3/z3V-2

+(F2/A)V2+ (F3/A)-2J=126 lb per in w f/(.707x18000)

-.01 in.1/8" filet weld is adequate.13 14 6.2.4 Support for RWM Cable Connectors 1s 16 217 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 30 40 41 02 44 45 48 Two cable connectors have the same weight as a power Supply. This support is acceptable by comparison of the support configuration with the support for the power supply on console 04A, which is qualified in the next section.6.2.5 support for Power Supplies (Console 05A)Supports for Electronics Boxes and Power supplies(Consoles 04A and 03)Power supplies on console 05A, and electronics boxes and power supplies on consoles 04A & 03 are mounted separately from the associated digital displays.

These supports are similar in configuration.

Review of the individual device weights .and their mounting configurations as shown in the sketches concludes that the support for power supply on console 04A is the governing case which envelops the remaining cases.Frequency Evaluation Mounting plate: 12 gage I -(1/12) (9) (.104WV3 -.000858 Weight plate 9x6.63x..1046x.283

-1.8 lb power supply 4 5.8 lb STONE & WEBSTER ENGINEERING CORPORATION CALCULATION SHEET 5010.65 21 2 3 4 5 a 7 10 11 12 13 14 15 17 19 O 20 21.22 23* 24 25 26 27 28 29 30 31 32 33 34 38 36 37 38 39 40 41 48 44 CALCULATION IDENTIFICATION NUMBER JOBNUBE OtISON& GOU CLCULATION NO. OPTIONAL TASK CODE PAGE 19597 NM (C) PS-049 N/A 52 f = 1. 732/ (2 iT ) x sqrt [EIg/ (WT?3) I L =6.63/2 = 3.32 in.= 59 Hz plate stress M -(5.8x4.75)x3.32

-9.1.5 in-lb Moment due to eccentricity (1"1) of the power supply=(4 x 3.2)(1) -12.8 Total =104.3 F= 5.8x3.2 -18.6 lb Z = II(t/2) = .0164 A = 9x.1046 = .941 sq in M/Z =6360 psi F/A = 20 6380 psi Note: The mounting plate has been revised from 12 gage to 11 gage as shown on the drawing. T his change is on the conservative side, and therefore, is acceptable.

6.2.6 Comparison of Calculated Stresses with Allowable Stresses The calculated stresses shown above for sheet metals, screws and bolts are much lower than the allowable stresses given in section 3.0. Therefore, these device mounting supports are acceptable.

STONE & WEBSTER ENGINEERING CORPOR0ATION CALCULATION SHEET 5010.65 26 CALCULATION IDENTIFICATION NUMBER JOB NUMBER DIVISION &1 GROUP CALCULATION NO. OPTIONAL TASK CODE PAGE 19597 N14(C) PS-049 N/A 52a 2 3 6.2.7 Deviation of Support Design for 13 in. RWM CRT for 4 unit 2 Console 20C05A 5 8 The RWM CRT support for unit 2 console deviates 7 slightly from the same support for unit 3 console.8 This deviation includes the orientation of the brace* member to the support frame(see attached support 10 sketches), ie., (1) the connection of the brace with 11 the existing horizontal P3301 strut is approximately 12 2 ft. (instead of 1 ft. 4 in. for unit 3) from the 13 back vertical panel, (2) the cross-sectional

.14 orientation of the brace is 180 degrees opposite to 15 the brace for unit 3 console. This deviatin is is necessary because of the space availability of unit 2 17 console.19 Review of the CRT support qualification for unit 3* 20 console concludes that a sufficient design margin 21 exists to compensate for the negligible effect caused 22 by the minor deviation described above. Therefore, 23 the CRT support design for unit 2 console is 24 acceptable.

25 26 27 28 29 30 31 32 33 34 35 36 37 38 30 40 41*42 44 45 4' 1q.57-A)/p(c) -IS-64q Iap9;- 2b 0 A S E CTI ON. -M- M 14UMBER PART OISCRTPTION CAT. NUMBER HEX H4EAC BOLT 1/2'X 1 3/16" HHCSUOS119EG 1/2" WASHAER HFLWOSOEG FLAT PLATE P1064 1/2' SFRIN0 NUT P4010 1/2- NUT 1HXNQSUGOE HEX HEA0 BELT 1/VTX 1 3/4- HHCSOS017SEG (D HEX HEAD BELT 1/4-X 3/4- HHiCSGZSGTSEG 1/4- SFPRI40 NUT P40OG-1420 1/4" WASHER RiFI.H02EG I .20C05A U S P3300 P3301 STRUT P3300 STRUT P1094 HEX HEAD0 BOLT IIZ~-I3-4 LONG. A-307 P3300 CUT P13Z$ TO FI1 NOTE SNUG TIGH4T FIRST NUT A TORQUE SECOND NUT TO IQ FT-LB.DETAIL I DETAIL 2 EXISTINGO P3301 SEE DETAIL : b P3300 STRU LSPIRO P3300 DETAIL 3 SECTION N-N P3300 STRUT OF CAN ENCLOSURE DETAIL 4\,-EDGE OF RECP. ENCLOSU1RE DETAIL 5 STONE & WEBSTER ENGINEERING CORPORATION CALCULATION SHEET CALCULATION IDENTIFICATION NUMBER JOB NUMBER DIVISION &GROUP CALCUATION NO. OPTIONAL TASK CODE PAGE 19597 NM (C) PS-049 IN/A 52d 2 3 6.2.8 Qualification of support for 6"1x6"' tracor 4 westronics multipens recorder 5 a This modification involves replacement of the 7 existing 6"1x6"' computer trend recorder with 6"x6"'a tracor westronics multipens recorder.

The o existing recorder weighs approximately 40 lbs, 10 while the new recorder weighs only 20 lbs. The ii new recorder is mounted at the front panel and 12 supported at the back by a support frame as shown 13 on the attached sketches.

Thus, the new recorder is 14 better supported than the old one before the is modification.

Therefore, this modification will 16 not affect the adjacent device qualification.

17 Is Judging from the sizes of the structural members 12 and bolts, the support frame is structurally

  • 20 adequate to support the new recorder, which weighs 21 only 20 lbs.22 6.2.9 Qualification of support for 6"1 x 6"1 computer.23 trend recorder 24 25 This modification involves the replacement of the 26 existing RWM operator interface with a non-Q 6"1x6"'27 computer trend recorder.

The new recorder weighs 20 28 lbs. and it is judged that the existing RWM weighs 29 more than 20 lbs. since it is much larger in size.The cut out in the panel skin due to the RWM will be 30 covered by an 131 gauge plate with mounting 31 bolts/holes similar to the RWM installation.

A 32 smaller cut out in this 11 gauge plate will be made 33 to accommodate the installation of the new trend 34recorder.

The new recorder is mounted at the front 2 35 of the panel and supported at the back by a support frame as shown on the sketches on pages 52f and 52g.38 Thus, the new recorder is better supported then the 37 old one prior to this modification.

Therefore, the 38 installation of this computer trend recorder will not 39 affect the adjacent device qualification.

40 Judging from the sizes of the structural 41 members and bolts, the support frame is structurally 42 adequate to support the new trend recorder, which 43 weighs only 20 lbs.44 45 46 1(75q7 -7 MM4cc) -Ps-.04q P,aqe 526'SECT ION p- p 11x I UMBE PART DISCRIPTION CAT. NUMBER HEX HEAD BOLT 1/2-X 2 1/2- HHCSXSOZSXEG (D 12" WAS1HER HPLWO5OEG FLAT PLATE P1064 (D I/l" SPRING NUT P4010 HEX HEAD BOLT 1/4"X 1 1/2" HHCS025150EG 1/4- WASHER HFL NOOSES (D 1/4- SPRING NUT P4005-1 4Z0 1/4- NUT HAXN025EG plo00 2OC05A S~3OC05A'EXISTING P3300 STRUT 1 1/6 X I M.- X T/8' ANGLE SUIT HO0LES S E CTIO 10 EXISTING P3300 P000 STRUT 1 1/4* X 1 7/4" X ANGLE STEEL 0D DETAIL 4 DETAIL 5 196-21453 7189 CALC NO F~-S-c 49 REV .ISO CALCULATION SHEET PAGE Ir-- OFQG ORIGINATOR

~.L.DATE IZ 9c NUCLEAR GROUP ~______DOCTYPE:OOOEIWE AE ý--I 4F ýý- -LE u0)010 c 2OC05A &3OC05AT P30 Uhl)00 &I3RT0 110IFI PART DISC0OPlION HEXOHA 0 DOLT 111"I I I/Z" T*FLAT PLAY* P1064 1/4' SRING UT 01311I0N P3301 S1000* OLT LENG14 WAY OF TRTABO AS R000)0 PROVIDED PUL L NU) 0000300AENI IS MAINAINED00.

SECTION 0-0 3 EXISTING P3300 EXISOTING P3300 STRUT\ý-13 000 011)00 1 ET A IL B P330)IS7/B*OH 0113 es 1111) P3C55 STRUT 117/0-4" HOLE TIPY. UPLACES)S/ 6 XR-001800 I0UZ TIl1 /4' X I t/4" I I/a' )R-901000 U03)P30coo STOUT-- /SCREIT LOCA710 X0 TO SU T 1)10SI .EOU'ISOHN)

MOUNTING HOLES 0O1E: UNLESS DIHOOWISE 00101). ALL DI!SHOTOSSO OTU l SHALL HAVE A T OLERANCZ OF t 1/15"0 W 0/40 SECTION T -T ANGLESE110 I DETAIL 7 196-21453 7/89 CALCULATION SHEET I CALONO P-5-049 REV Z PAGE -S?- j4OF &0c ORIGINATORt

'Wee ')c~DATE 12- 4-90 REVIEWER ý.914 i-V7... DATE ____-_4_____

2OC05~A & 3OC05A 194 -114 n Cw riopi d ,faee S c/ s br~v e-ovi JeJ NOTE: UNLESS OTHERWISE NOTER. ILL DIMENSIORS SHIALL HA100E A TOCLERANCE OF 1/1IO.0E T AI1L F-8 I\ 32 0 1" FLAT S10LOT NO .1 DOLOVT/PAT NUT A1 WASHER tISP. S PLACES)CVRPAE

--\Nf0-3Z I I' FLAT SLOT 00 ROLT/34 RUT A RASHER (TIP. 6 PLACOSI TOI-ORER I131 PANEL- F RONT PANEL SKIN MOUNTING DETAIL- XR-801 88B XR-901 88B STONE & WEBSTER ENGINEERING CORPORATION.CALCULATION SHEET 5010.65 22 2 3 4 5 a 7 10 11 12 CALCULATION IDENTIFICATION NUMBER JOB NUMBER -MVSION & GROUP CALCULATION NO. OPTIONAL TASK CODE PAGE 19597 NM (C) PS-049 N/A 53 7.0 Assessment of the Impact of the Modification on the Existing Q Console and Q Devices MOD 955 involves replacement of the existing computer trend Gemax recorder with a new.13 inch RWM CRT, and installations of several other small devices such as, a ,panel switch, cable connectors, digital displays and associated electronics boxes and power supplies.

The following sections assess the impact of these modications on the existing console and devices.13 14 7.1 13 inch RWM CRT 15 16 17 18 19 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41.42 43 44 45 46 The existing computer trend Gemax recorder approximately 40 lbs, and its size is 6"1x(inches protruded into the back of the replacement with the new CRT weighs 90 lbs mounting tray and can), and it requires a x 15"1 on the front panel to provide an or.mounting this device. Larger opening we-, and heavier weight increases the mass tc structure.

This, in turn, might alter t-I characteristics of the panel if proper >taken.weighs ,.th 22 The (including the-.-tout of 14"1 f or the panel,:upporting

.-.al dynamic-.s are not To minimize such effect, a support frame is ý stalled at the back of the panel to share the load and t--,ereby reduce the load at the front panel to apprc rt-inately the same as was before the modification.

The -t panel is further reinforced by the CRT support can :h is connected to the support frame at the back. ."In addition, the support frame is braced to ensure that the frequencies in all three directions are in the rigid range of seismic response spectra, and that the support frame is structurally adequate to withstand seismic loads.Thus, incorporation of the above design into the modification assures that the support structure is ,rigid, and that the front panel is properly reinforced and supports the same weight as it did before the modification.

Therefore, the response of the new device due to seismic excitations will at least remain the STONE & WESTER ENGINEEIRING CORPORATION CALCULATION SHEET 5010623 CALCULATION IDENTIFICATION NUMBER 19597 NM(C PS-049 N/A 54 2 3 same as or smaller than it was before the modification, 4 and thus, the adjacent devices and the console will not be 5 affected by this modification.

7 The closest 0 device to this modification is a single GE CR 8 2940 switch located approximately 1 ft. from the cutout and* near a panel edge which provides a stiff support for the 10 switch. This and other Q devices in the upper panel of the 11 console are all switches and push buttons with very high 12 seismic capacities in any event.13 14 The overall weight being added to the console is negligible is and no change can be expected in the overall console is response as well.17 19 7.2 other Small Devices 21 Other modifications involve installation of small devices 22 such as digital displays, panel switch, etc., which weigh 23 from 1 lb to 5 lbs.24 25 The mounting supports for these devices are made rigid to* 26 ensure that seismic responses are not amplified.

In 27 addition, the weights of the devices are negligibly small 28 compared to the total weight of the console, therefore, 29 the-responses of these devices will be negligible and will 30 not affect the integrity of the console and the adjacent 31 devices.32 33 34 35 7.3 6"1 x 6"1 Computer Trend Recorder 37 This new device is smaller and is judged to weigh less 37 than the device it is replacing, the RWM operator 38 interface.

The new recorder also has a new rear 39support bracket further strengthen its mounting.1\

40 Therefore, the installation of the computer trend 41 recorder in place of the RWM operator interface will 42_ not impact the existing qualification of the Q devices 43 in panel 05A.44 46 STONE P_ WEBSTER EN~GINEERING CORPORATION CALCULATION SHEET A 5010.65 1 CALCULATION IDENTIFICATION NUMBER J.O0. OR W. 0. NO. IDIVISION

& GROUP F ACLTO O OPTNA T AKCD 19597 I NM(C) I PS-049 8.0 ASSESSMENT OF THE IMPACT OF THE FAILURE OF NON-Q DEVICES ON THE Q DEVICES AND THE CONSOLES AND RECOMMENDATIONS FOR ANY MODIFICATIONS IF REQUIRED (FOR 4 OSA ONLY)6 The installed console was seismically qualified with all devices in their original configuration.

All original devices are'therefore concluded to be acceptable from a II/I consideration.

This 6 includes confirmation of both structural integrity and the absence of 9 unacceptable spatial interactions inot involved with structural failure 10 (breaking loose). Console modifications completed after installation have II been assessed using information (1) provided by PECo and (2) obtained 12 during a walkdown of the this specific console as well as other seismically qualified consoles and cabinets.

Section 6.0 above cbnfirms the integrity 13 of Modification (MOD) 955. Console 05A is concluded to have no 14 unacceptable II/I interactions.

16 17 8.1, DISCUSSION is The conclusion stated above is derived from the following:

19 20 8.1.1 The console and all devices installed at the time of plant 0 21 installation were seismically qualified as a part of- the original 22 seismic qualification of the console. (The Task Scoping document, ref 1, states that "PECo has established that the 23 existing consoles are Q commodities seismically qualified with all 24 the devices attached.")

25 26 8.1.2 Console modifications performed subsequent to the installation of 27 the seismically qualified configuration have been characterized as minor. This means either: 26 29 a. Minor changes involving inconsequential structural 30 modifications (small holes being drilled orcovered, or 3'1 32 b. Additions (or deletions) of inconsequential weight and/or size 33 to the console, or 34C. The exchange of like item for like item in which the new item 35 is sufficiently similar to the replaced item Cin size, weight, 56 anchorage details, etc.) to be a basis to conclude that 37 equivalent and satisfactory structural integrity exists.The purpose of the walkdovn is to confirm that such modifications 39 are not significant for. a II/I interaction assessment.

40 41 8.1.3 Reference 13 confirms basic console anchorage.

No further assessment oe is required.*41 STONE I. WEBSTER ENGINEERING CORPORATION CALCULATION SHEET A 5010.63 CALCULATION IDENTIFICATION NUMBER J0O. OR W.O. NO. DIVISION & GROUP CALCULATION NO. JOPTIONAL TASK CODE PAGE 5 6 1Q~Q7?N(C)pq_011 2 8.1.4 The process of review of non-Q modifications to console 05A is as follows: 4 5a. As a result of the walkdown of this console and its prior 6 seismic qualification, it was judged that spatial interaction 7 (rattling) of any of the non-Q modifications with Q-devices 8 was not credible.

Structural failure (and falling) would be 9 the only necessary concern as a precursor to any unacceptable II/I interaction.

10 IIb. With information from the walkdown, the non-Q modifications 12 to the original configuration are confirmed as minor and, 13 therefore, judged to be capable of remaining integral during k 4 an earthquake.

Subsequent steps are also applied since it was 15 not possible to precisely identify every modification.

No II/I 15 concern is concluded.

16.1? C. If the non-Q modification is sufficiently distant from any Q to device(s) to be of no concern (even if structural failure and 19 associated falling were to take place), an acceptable condition 29 could be concluded to exist. Because potential failure paths 20 could include safety-related wiring or interior devices not 22 1 apparent from either the walkdown or available drawings, this 22 option was not used for II/I assessment of this console.23 24 d. If Q devices are inside the potential failure path of the non-25 Q modification (or if it *is desirable to assure against 25 possible structural failure) the non-Q modification must be 26 assured against structural failure and any unacceptable spatial 27 interaction by one of the following methods: 28 29 (1) Comparison with other devices qualified in this or other 30 plant consoles combined with a judgement regarding panel location dependent response.

M~any added devices are 3 1 identical (or sufficiently similar) to qualified devices.32 Structural integrity is easily inferred.33 34 (2) If necessary and/or appropriate, utilize information 35 from other plants (experience) to confirm structural integrity.

36 37 (3) Perform a case specific evaluation by either: 38 -calculation, or 39 -engineering judgement (insufficient weight, etc.).40 All indicating lights are judged to be of sufficient 40weight/strength so as to be incapable of structural 41 failure due to earthquake loading.@42 43 44 45 46 2 4 5 10 1 1 12 13 14 15 16 17 i a'9@21 22 23 24 25 26 27 28 29 30 3 1 32 33 34 35 36 37 38 39 40 41.42 43 44 45 46 STONE a WEBSTER ENGINEERING CORPORATION CALCULATION SHEET k 5010.65 CALCULATION IDENTIFICATION NUMBER J.O. OR W.O. NO. DIVISION D GROUP [CALCULAT .ION NO. JOPTIONAL TASK CODE PAGE 5 7 19S97 Kiwi(C) Pq -04 8.1.5 M~odifications to the original installation were concluded to result in an acceptable console configuration.

No potential II/I interactions were identified.

8.1.6 The modification (HOD) 955 outlined in Section 1.0 and the calculations presented in Section 6.0 confirm the structural integrity of the design and confirm an acceptable console configuration.

No potential II/I interactions will result from this MOD.8.2 DETAILED DISCUSSION The upper (vertical) panel of the console contains the following Q-devices: (identification and location (X, Y) coordinates are according to Ref. 14, view F; locations of device clusters are approximate and provided for reference and Information; see.Figure 8-1 attached).

1 .2.3.4.2ea manual scram push buttons (84, 22)6ea GE CR2940 switches (160, 18)2ea GE CR115 switches (158, 15)lea GE CR2940 switch (142.75, 2)These devices are sufficiently isolated above or beside any identified modification to assure against any potential interaction.

Structural failure of any non-Q device on the vertical panel will not occur and therefore will not create any unacceptable interaction with Q devices located below. Non-Q dial indicators (37ea G.E. 180), recorders (l5ea 6x6 multipen), and local power indicators (l6ea) are concluded to be structurally qualified because they are either (1) original equipment, or (2) similar to Q or non-Q devices installed in another Q commodity (e.g.ECCS panel or console 04A). Remaining non-Q devices (pushbutton switches, indicator lights, etc., were judged structurally qualified because they are either (1) original equipment, or (2) low weight, compact items with sufficient strength.

STONE a WEBSTER ENGINEERING CORPORATION CALCULATION SHEET A 5010.65 CALCULATION IDENTIFICATION NUMBER 4.0. OR W.O. NO. DIVISION & GROUP ICALCULATION NO. IOPTIONALTASK CODE 19597 Nm(r) VqP-049 I 2 3.4 5 6 7 a 9 10 12 13 14'5 16 17 19 22 23 24 25 26 27 28 29 30 3'1 32 33 34 35 36 37 38 39 40 41 O 42 43 44 45 46 The lower (horizontal) panel of the console contains the following Q-devices: (identification and location (X, Y) coordinates are according to Ref. 14, view E; locations of device clusters are approximate and provided for reference and information; see Figure 8-1 attached)5.6.7.8.9.10.11.12..13.5ea lea 2ea 3ea 4ea 4ea lea lea 2ea GE CR2940 switches (159, 6) Unit 3; 4ea on Unit 2 SBLC pump switch (152, 15)GE SBM switches (142, 14.84)Neutron Monitoring System switches (129.75, 10)IRM Power Range switch (110, 10)IRM Power Range switch (58. 10)GE SEN switch (96, 3.6)Reactor Mode switch (70.75, 3.8)GE SEN switches (24, 4.84)These devices are concluded to be sufficiently isolated from any identified modification to assure against any potential interaction.

Structural failure of any non-Q device on the horizontal panel will not occur and therefore will not create any unacceptable interaction with Q devices located below. Major non-Q devices include: the Manual/Auto HCS Stations (8ea 7-GEMAC, l-L&N), the rod select matrix, switches (l8ea G.E. SBM; 5 additional SEN switches are Q qualified), and Neutron Monitoring System bypass switches (6ea).9.0 SEISMIC CAPABILITY LIMITS OF EXISTING Q DEVICES FROM SWEC/VENDOR DATA BASE (FOR 05A ONLY)Reference 9 addresses the seismic qualification of "Class I" electric equipment on all standard product line reactors.

It summarizes qualification data obtained by methods which "did not differ markedly" from IEEE 344-1971.

Reference 15 provides data for switches similar to those used for the' Peach Bottom consoles and represents test to more cu rrent requirements (i.e. multi-axis testing, etc.). Certain data have been extracted and compared below.DEVICE Switch, typf CR2940 Switch SB-l Switch SEN Range Switcl2 REFERENCE 15 9 9 9 L9 MALFUNCTION LIMIT HOR-l HOR-2 VERTICAL 209 209J 205 20 20 20 10 10 10 25 25 25 8.5 8.5 8.5 DEVICE CLUSTER (FIG. 8-1)2,, 4, 5 G.E. (typical)7, 11, 13 9, 10, All devices, including the remaining Q device clusters (1, 3, 6, 8, and 12) are seismically qualified to at least the specified plant levels.

STONE &.WEBSTER ENGINEERING CORPORATION CALCULATION SHEET A 5010.85 2 3 4 7 10 1 1 12 13'4 15 16 Is 19 22 23 24 25*26 27 28 29 30 3'1 32 33 34 35 36 37 38 39 40 41@42 43 44 45 46 CALCULATION IDENTIFICATION NUMBER JO .OR W.O0. NO. DIVISION & GROUP CALCULATION N. OPIONAL TASK CO IDE PAGE 5 1Q'iQ7 Nm (r) PS-049 TABLE 8-1 SUMMIARY TABLE OF EQ~UIPMENT FOR CONSOLE(S) 2(3)0C05(A)(extracted from Ref. 14 in the same order as annotations)

UPPER (VERTICAL)

PANEL 15- 6x6 MULTIPEN RECORDERS 37- G.E. INDICATORS 22- G.E. CR2940 SWITCHES (7- Q)16- LOCAL POWER INDICATORS LOWER (HORIZONTAL)

PANEL 23- G.E.CR2940 SWITCHES (5- Q)23- G.E.SBM SWITCHES (5- Q)8- MANUAL/AUTO HCS STATIONS 8- IRM POWER RANGE SWITCHES (8- Q)6- NEUTRON MONITORING SYSTEM BYPASS SWITCHES (3 -Q).2- VALVE POSITION INDICATORS

-RWM OPERATOR INTERFACE (1)(DELETED BY MOD 955)4-REACTOR MODE SWITCH (2)(1- Q)SBLC PUMP SWITCH (3)(I-Q RFPT LOCKOUT RELAYS (4)2- MANUAL SCRAM PB's (5)(2- Q)4- ROD DISPLAY INDICATORS (8)2- G.E. CR115 SWITCHES (9)(2- Q), 1- ROD SELECT MATRIX (6)4- ARI PUSH BUTTONS (7)

A 501012 STONE & WEBSTI CA I9597-NM(C)-PS-O49 PAGE FIGURE 8-1 LIST OF Q DEVICES ON CONSOLES 2(3)OCOSCA)

1. 2ea manual scram push buttons (84, 22)2. 6ea GE CR2940 switches (160, 18)3. 2ea GE CR115 switches (158, 15)4. lea GE CR2940 switch (142.75, .2)5. 5ea GE CR2940 switches (159, 6) Unit 3;Client.Subject or Apparatus Based on nw" I 20e0ý"I 5 -Ulu VIEW F a 3010 as STONE & WEBSTER ENiGINIEERING CORPORATION CALCULATION 3HILIT-PS-049 PAGE 60<L Page No.___________

Preliminary Itamc BY 19597- NM(C)Client SubJect or Apparatus Location aEst o Date Checked By Based on Revised By£I~3I~AJt~.S62~Lo~J ty~~l&~Q a~ oaa+/-p I')~AA 1U1 $ CL.&mAN. A 2k- ý,

STONE F.. WEBSTER ENGINEERING CORPORATION CALCULATION SHEET Af L5010.85 CALCULATION IDENTIFICATION NUMBER J.O.. OR W.O. NO. _t DIVISION &j GROUP ICALCULATION NO. JOPTIONAL TASK CODE PAGE__195-97 /V NA(c) I ps-049 2 3 4 5 6 7 10 I2 14 I5 17 19 22 23 24 25 26 27 28 29 30 3 I 32 33 34 35 36 37 38 39 40 41 O42 43 44 45 46 CSA~ocZ.)3 OCx4A 0 STONE I. WEBSTER ENGINEERING CORPORATION CALCULATION SHEET A 5010.85 CALCULATION IDENTIFICATION NUMBER J.0. OR W.O. NO. DIVISION & GROUP CALCULATION NO. JOPTIONAL TASK CODE PAGE 0 1q5-9 A/IIc 2 3 6 9 10 12 13 14'5 16 17'9 22 23 24 25* 26 27 28 29 30 32 33 34 37 38 39 40 41 44 45 46 STONE I, WEBSTER ENGINEERING CORPORATION CALCULATION SHEET A4,p e n /e I CALCULATION IDENTIFICATION NUMBER DIVISION & GROUP JCALCULATION NO. OPTIONAL TASK CODE A/"MCC) ps- 047 2 3 4 7 8 9:0 12'3 14 is 16 17 19 22 23 24 25* 26 27 28 29 30 3 1 32 33 34 35 36 37 38 39 40 41.42 4 3 44 45 46 3ocos-A 6ý-,rgvcs 3o oO5A t3- aev-'cco---------

4111111 ZAL--ýCýfoý-A STONE a WEBSTER ENGINEERING CORPORATION CALCULATION SHEET A A 5010.65 CALCULATION IDENTIFICATION NUMBER J.O. OR-W.O. NO. DIVISION & GROUP ALCULATION NO. JOPTIONAL TASK CODE PAGE4 1,?5q7 T ps- 04q 2 4 5 9 10 12 13 (4 15 19@21 22 23 24 26 27 28 29 30 32 33 36 37 39 40 41*42 44 45 46 STONE I, WEBSTER ENGINEERING CORPORATION CALCULATION SHEET AP~Ce,~, I.0 CALCULATION IDENTIFICATION NUMBER DIVISION & GROUP ICALCULATION NO. JOPTIONAL TASK COD!/m Q AI P5 'c-3 6 7 10 13 14 15 16 17 Is 19 020@21 22 23 24 25 26 27 28 29 30 3 1 32 33 34 35 36 37 38 39 40 41 44 45 46r hi I/N ,DOC OSAý\CGý(*e -fcZi 3 o c IsVA K~F~r~Tr~ie I 3 01C0 ý- A (r4okJ -, C dev 'tCQ STONE & WEBSTER ENGINEERING CORPORATION CALCULATION SHEET CALCULATION IDENTIFICATION NUMBER DIVISION &- GROUP I CALCULAT ION NO. JOPTION .AL TASK CODE IVA -IP Wr O4~3 4 9 10 12'3 14 15 16 17 Is'9 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41.42 143 44 45 46 3ocoSA STONE I. WEBSTER E 5INEERING CORPORATION CALCULATION SHEET Apni Ap 501085x CALCULATION IDENTIFICATION NUMBER J.0. OR W.O0. No. DIVISION & GROUP CACLTO O.OPTIONAL TASK CODE ,PAGE P3- 04 9 2 4 8'0 12 13 V 15 16 17 2 1 22 23 24 25 26 27* 28 29 30 3 1 32 33 34 35 36 37 38 39 40 41@2 3 ccoo9AIQ2

)44 45 46 I STONE P. WEBSTER ENGINEERING CORPORATION CALCULATION SHEET 4ploelqd /x I CALCULATION IDENTIFICATION NUMBER DIVISION &- GROUP ]CALCULATION NO, JOPTIONALTASYK CO'NM -f() Os-,o, 2 3 4 6 7 a 9 10 12 13 14 t'5 16 17 is 19 22 23 24 25 26 27 28 29 30 3'1 32~33 34 35 36 37 38 39 40 43 44 45 46 3"CO7A sa~kL5k STONE a WEBSTER ENGINEERING CORPORATION CALCULATION SHEET ,4pendlx I A ~Aifl A~CALCULATION IDENTIFICATION NUMBER J.0. OR W.O. NO.j DIVISION &GROUP ICALCULAT ION NO. JOPTIONAL TASK CODE PAGE'_T9 7 ~ ~ C 2 3 4 5 6 7 9 10 12 13 14 15 16 17'9*21 22 23 24 26 27 28 29 30 3'1 32 33 34 35 36 37 38 39 40 41 O42 143 44 45 46 70@ &o/-l 0 D 0 PANEL FOT --C7 bti' n ROUTE 25-011 1-/4"-20 HEX NUT A-307 8 WASHER ( TYP. 12 PLACES)1/4"-28 FLAT HWAD SCREW 3/4" LONG A-307, (TYP Z PL~.CES)1/4'-28X 1 1/4" LONG FLAT HEAD MACHINE SCRE.W.;A-193 GR 81 & TWO (2) 1/4" NUTS fA-194 GR ZH (TYP 0 PLACES)TRAY CONNECTION PER MANU6FACTURER'S REGURI EMENTS APPlROX.ENCLOSURE I INTERIM DRAWING CHANGE NOTICE STATION UNIT PRAPS LGS c -1 2 3 DO 0 0 0 0 0 0 I , u-a..1.NOTE: CONNECTION OF TRAY TO CRT CHASSIS PER MANUFACTURER'S REOUIRtMENTS LPHILADELPHIA ELECTRIC COMPANY MO D;AWING ISETIREV.

lTOr I -tEE -124.PRELIMINARY DRAFT 1100 MOD ISSUE 0 ISSUE 0 ISSUE 03~DATE DOESIENI CHKO. APPR. STR *DESCRIPTION:

I OSG0G041 02399GS I PAGE I OF I CONNECTION PER MANUFACTURER'S REDURI EMEI4TS MOO OSSE ADDED: ASSEMBLY DETAIL FOR DEVICE XL S-9019 XI S-901 93 ASS'EMBLY DETAI L 1 9597-NM(%C)-PS-049 page 16 STONE I. WEBSTER ENGINEERING CORPORATION CALCULATION SHEET A 5010.65 CALCULATION IDENTIFICATION NUMBER J.O. OR W.O. NO. DIVISION & GROUP ICALCULATION NO. JOPTIONAL TASK CODE PAGE 58 19997 -Mr)I pq-fl1 I 2 3 4 5 6 7 8 9 10 I I 12'3 14 15 16 17 Is 1 9 20 221 22 23 24 25 26 27 28 29 30 3'1 32 33 34 35 36 37 38 39 40 41@42 43 44 45 46 Aiqfacbment I Va# 4p/ are S)9agqe 2 The lower (horizontal) panel of the console contains the following Q-devices: (identification and location (X, Y) coordinates are'according to Ref. 14, view E; locations of device clusters are approximate and provided for reference and information; see Figure 8-1 attached)5.6.7.8.9.10.11.12.13.Sea lea 2ea 3ea 4ea 4ea lea lea 2ea GE CR2940 switches (159, 6) Unit 3; 4ea on Unit 2 SBLC pump switch (152, 15)GE SBM switches (142, 14.84)Neutron Monitoring System switches (129.75, 10)IRM Power Range switch (110, 10)IRM Power Range switch (58. 10)V0 D GE SBM switch (96, 3.6) V I Reactor Mode switch (70.75, 3.8)GE SBM switches (24, 4.84)These devices are concluded to be sufficiently isuldL..,d LJrom any identifieti modification to assure against any potential interaction.

Structural failure of any non-Q device on the horizontal panel will not occur and therefore will not create any unacceptable interaction with Q devices located below. Major non-Q devices include: the Manual/Auto HCS Stations (8ea 7-GEMAC, l-L&N), the rod select matrix, switches (l8ea G.E. SBM; 5 additional SBM switches are Q qualified), and Neutron Monitoring System bypass switches (6ea)..SEISMIC CAPABILITY LIMITS OF EXISTING Q DEVICES FROM SWEC/VENDOR DATA BASE (FOR 05A ONLY)Reference 9 addresses the seismic qualification of "Class I" electric equipment on all standard product line reactors.

It summarizes qualification data obtained by methods which "did not differ markedly" from IEEE 344-1971.

Reference 15 provides.

data for devices similar to those used for the Peach Bottom consoles and represents test to more current requirements (i.e. multi-axis testing, etc.). Certain data have been extracted and compared below.9.0 DEVICE REFERENCE HOR- 1 209 20 Switch type CR2940 Switch SB-l Switch SBM Range Switch 9 15 MALFUNCTION LIMIT HOR- 2 209 20 10 25 8.5 VERTICAL 209 20 10 25 8.5 15 10 15 25 15 8.5

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