ML20216E689

Calculation 0067-000-84-C-020 (PS-0920), Clipped A-46 Spectra for Radwaste/Turbine Building. W/14 Oversize Drawings

ML20216E689
Person / Time
Site:	Peach Bottom
Issue date:	08/04/1997
From:	PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
Shared Package
ML20216E687	List: ML20216E681 ML20216E689 ML20216E716 ML20216E749 ML20266A395 ML20266A399 ML20266A404 ML20266A407 ML20266A428 ML20266A431 ML20266A435 ML20266A439 ML20266A443 ML20266A445 ML20266A448 ML20266A452 ML20266A456 ML20266A460
References
0067-00084-C-02, 0067-00084-C-020, 67-84-C-2, 67-84-C-20, NUDOCS 9709110050
Download: ML20216E689 (67)

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ENCLOSURE 4.1 1

Calculation 0067 000 84 C 020 (PS 0920)

_(16 pages)

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PECO ENERQY This page is follond by pase Ib.

CAUTION: This calculation may not be used as a design basis calculation unless supported by a 50.59 evaluation This calculation was generated for the SQUG (A-46) and/or IPEEE evaluation which was performed for the Peach Bottom Atomic Power Station in response to NRC Generic Letter 87 02, the SQUG (A 46) program was developed to verify the seismic adequacy of equipment of older plants. The SQUG (A 46) Program was performed using the_" Generic implementation Program (GIP) for Seismic Verification of Nuclear Plant Equipment" Rev 2. The SQUG (A-46) program is outside the scope of commitments made in the UFSAR and Technical Specif. cations which form the basis of the operating license of the plant.

The SQUQ program was performed in conjunction with the individual Plant Examination for External Events (IPEEE). The objective of the IPEEE was to perform an indisidual plant examination of extemal events to ident!F severe accident vulnerabilities. As with SQUG, the

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analysis performed for IPEEE is beyond the scope of the PB APS design basis.

This calculatior: was originally prepared by Duke Engineering and Services (DEAS)' for the IPEEE / SQUG (A-46) program for PBAPS in accordance with Specification NE Il7. The work was not performed as nuclear safety related but was performed, reviewed and approved in accordance with the preparer's QA program.

• The preparing organization of this calculation was originally known as ABB 1mpell Corporation, then became VECTRA and at the time ofissuance of this calculation was Duke Engineering and Senices.

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DOCUMENT APPROVAL COVER SHEET 0067 00084 C 020 [F6-of 2o)

DOCUMENT NUMBER:

DOCUMENT TITLE:

Clipped A 46 Spectra for Radwasle/

VECTRA 7Urbine Buidng CLIENT:

PECo l

DOCuuaNT TYPE:

._x_ CALCULADON SPECIMCATH3N PROJECT:

PBAPS Units 2 & 3 REPORT 0067 00084 DOCUMENT PER PROJECT NUMBER:

OP.3.11

SUMMARY

DESCRIPTION:

Stated Within l

i REVISION DESCRIPTION:

TOTAL NO. OF PAGES 12 ORIGINATOR:

m#

Aelaz Ali DATE: September 25,1995 bs ga.M Stavros Dermitzakis DATE: September 27,1995 VERIFIER:

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7/2g/9f' APPROVER:

HEVISION D[S RIPTION:

TOTAL NO. 0F PAGES ORIGINATOR:

DATE:

VERIFIER:

DATE:

APPROVER:

DATE:

REVISION DESCRIPTION:

TOTAL NO. OF PAGES ORIGINATOR:

DATE:

VERIFIER:

DATE:

APPROVER:

DATE:

PAGE 1b CONT ON 2

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TABLE OF CONTENTS t

I Page Cover Sheet 1

Table of Contents 2

1.0 Objective..........................................................................................................3 2.0 Methodology.............................................. '...............................................

L 3.0 OWSpectra................................................................................................5 4.0 R eferences.................................................................................;

Total Pages:

12 7

e Cient : PEco Promet : PSAPS Units 2 and 3 JOB NO:

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1.0 OBJECTIVE This calculation documents the generation of 5% damped clipped in stnicture response spectra for the centers of mass at Elevadons 135' 0",150' 0" and 165' 0" of the PBAPS Units 2 and 3 Radwaste/ Turbine Building.

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Each of the 30 response spectra in the E W and N S direedons at the centers of mass of Elevs.135' 0",150' 0" and 165' 0" were generated using the structural model developed and documented in [1] and clipped using the methodology described in [2].

Summary of the methodology used for clipping is presented in Section 2,0. The median of the clipper! in structure response spectra is compared with the 1.5 times the Bounding Spectrum (3) in Section 3.0.

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9/2745 0067 00084 3-REV-BY DATE CHK DATE VECTRA CALC NO: 0067 00084 C-020 of 12' th-orzo)

2.0 METHODOLOGY 1his secdon summarines the methodology for clipping the in structure spectra developed for use in the USl A 46 program evaluations of equipment in the Category 1 portion of the PBAPS Units 2 and 3 Radwaste/ Turbine Building. Details of the clipping procedure may be found in Appendix Q of[2].

For each spectrum to be clipped, a factor B is defined as BmY f.

where Afu is the total fnquency range over which spectral amplitudes exceed 80% of the peak spectral amplitude and f. is a central frequency for the frequencies which exceed 80% of the peak amplitude.

The clipped peak Required Response Spectmm (RRS.)is obtained as Peak RRS. = C.(RRS) where.

C. = 0.55 if B s 0.2 C. = 0.4 + 0.75B if 0.2 s B s 0.8 C.=1.0 if B 2 0.8 The above procedure is applied to each of the 30 response spectra at each center of mass node (of structural model developed in [1]) at Elevs. 135' 0",150' 0" and 165' 0" in the E W and N S directions and a median of the 30 spectra is calculated.

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PAGE 9/2595 90 9/27/95 0067 00064 4

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REV BY DATE CHK DATE VECTRA C ALO NO: 0067 00084 C-020 of 12 (Pb 012.0)

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3.0 CLIPPED SPECTRA he 5% damped clipped in structwe response spectra at the mass points at Elevs.135' 0",

150' 0" and 165' 0" in the E-W and N S directions are presented in this section.

nc 5% damped spectra are compared with the GIP Bounding Spectrum multiplied by 1.5 (3).

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4.0 REFERENCES

1.

VECTRA Calculation No. 0067 00084 C-005A,"Radwaste/rurbine Building A-46 Spectra" Rev.1. Job No. 0067 00084. CA5' -ofo71 / #f/

g<p 2..

EPrJ Repon No. EPRI NP 6041 SL, Revision 1. "A Methodology for Assessment of Nuclear Power Plant Seismic Margin", August 1991.

3..

SQUG Generic Implementation Procedure, Rev. 2.

4 4

4 Cient : PEco Propet : PBAPS Units 2 and 3

' ~

JOB NO:

PAGE-fg 9/2545-6fD-9/27/95 0067 00084, 12 O

REV BY DATE CHK DATE VECTRA CALC NO: 0067 00084 C-020 of 12 (n-mo) i

Attachment A to Calculation PS-0920 Page 1 of 2 ATTACHMENT A The spreadsheet program EXCEL was used to facilitate the calculations described in Section 2 of this calculation. This attachment contains the EXCEL files that were used for each elevation as shown below:

Disk ZIP file EXCEL File Floor Elevation Direction No.

1 Pbi65. zip Fvsa9xc.xis 165 N-S Fvsa9yc.xis 165 E-W 2

Pb150xc. zip Fvsa6xc.xis 150 N-S Pb150yc. zip Fvsa6yc.xis 150 E-W 3

Pb135xc. zip Fvsa3xc.xis 135 N-S Pb135yc. zip Fvsa3yc.xis 135 E-W Each file contains the 30 response spectra from reference 1, the computations for B and Ce for each spectrum, the 30 clipped spectra using the criteria in section 2.0 and finally the medium spectrum for the 30 clipped spectra.

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ENCLOSURE 6.1 Third Party Audit Photo Log from July 15,1993 (8 pages)

PHOTO LOG Pcach Bottom Atomic Powcr Station (July 15,1993)

Roll # PBAPS#.1 Page of ROLL PHOTO DESCRIPTION COMMENT PBAPS#1 1

Vold PBAPS#1 2

Unit 3 Battery Room, Elevation 135.

Battery Racks.

PBAPS*1 3

Battery Racks PBAPS#1 4

Battery Racks Batteries appear to be oversized.

Note plastic spacers PBAPS#1 5

Battery Rack Anchorage and Cross Bracing PBAPS#1 6

Block Walls behind the Block walls are very battery rack, common in this building. Adequacy should have been evaluated as part of 8011. Probably a vulnerability for seismic IPE.

PBAPS#1 7

Unistrts. support off of block wall behind the battery rack.

PBAPS#1 8

Plastic spacers on the two Need to check the (2) thru bolts.

adequacy of the spacers for GIP caveat. Also need to assure that hard impact on the thru bolt will not crack the plastic casing for the battery.

PBAPS*1 9

Fluorescent light fixture Some of these appear to have open S-hooks.

l PBAPS#1 10 MCC E134-T-B I

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N0CKGMATIC30[UTION5 l

811Jerirhe Tampne. S&r 200E Nee: (316)3612983 l

Sammenene, New Yort II187 Tas: r316)3618893 i

ROLL PHOTO-DESCRIPTION.

. COMMENT -

PBAPS#1

-11 Top support for MCC Similar support at the other end of the MCC.

PBAPS#1 12 Transformer 30X150 PBAPS#1 13 Transformer 30X150 -

Anchorage and weak way bending.

PBAPS#1 14 Battery Charger Mounted on block wall with shell i

anchors.

4 PBAPS#1 15-Battery Charger PBAF3#1 16 RPS M/G Set A Output Monitor Switchgear.

3AC757 PBAPS#1 17 Beam clamps support Clamps are oriented conduit in the acceptable-manner.

l PBAPS#1 18 Spare breaker stored next to Wheels are lifted off switchgear, of the floor with the red 2X4. Possible housekeeping 4

concern.

PBAPS#1 19 Rear of switchgear. 4kV Bus.

30A015 (E-13). Emergency Aux Switchgear.

ROLL PHOTO DESCRIPTION COMMENT i

PBAPS#1 20 Emergency Aux Switchgear.

30A015 (E-13).

4 PBAPS#1 21 Battery Charger Block Wall Behind PBAPS#1 22 Battery Charger Base Check weak way bending.

PBAPS#1 23 Bus transformer switch Anchor bolts to i

wall can be either thru bolts or shell type anchor.

4 -

PBAPS#1 24 Transformers PROGRANNATIC 30LUT10N5 st!Jenrhe Tene e. sakt less her: 016)36! 2985 n

SmNnewn. New Yort !!!C7 Fat: 016)3618893

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^ DESCRIPTION COMMENT :-

J ROLL PHOTO 1 PBAPS#1-25; Transformers':

Black" transformer -

1 in foreground has a

-l base which-appears to be quite-p flexible. -

sPBAPS#1-28.

Spare breaker Stored adjacent to.

i switchgear.

Possible housekeeping __

i problem. The red 2X4 lift the wheels off of the ground.

-PBAPS#1 27-Core spray pump.

Not on SSEL

^PBAPS#1:

28 Core spray pump.

Not on SSEL PBAPS#1' 29:

Unit coolers L

PBAPS#1 30-Unit coolers t

i PBAPS#1

-31 RCIC Turbine PBAPS#1 32 RCIC Pump -

PBAPS#1 33 RCIC Skid and Anchor Bolts

'PBAPS#1 34' Support for gauge (retired).

All anchor nuts Middle green column.

removed or very

^

loose. Support moves freely.

Should be secured.

PBAPS#1

- 35 Support for gauge (retired).

Two nuts removed Middle green column, and two backed off to top of stud.

PBAPS#1 36 HPCIPump PBAPS#1 37 HPCI Pump D

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Roll # PBAPS#2

~

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PHOTO ~

DESCRIPTION COMMENT

=PBAPS#2-21 Vold

~PBAPS#2=

-2 HPCIPump.

4 PROGRAMMAfic SOLUFNWS --

- ### Jadree FM. J.Ar leet -

Phoeri Old) Jet 2985 3mthoun New Yad il787, Fart pl6J Jdi 889J

. -... ~. -. - - -

.-. - - -.. _ ~ -. _ - -

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- ROLL

' PHOTO DESCRIPTION COMMENT o

PBAPS#2-3 HPCIPump-PBAPS#2 4

HPCIPump-F PBAPS#2 5 ~

Gas Bottle in Stalt eii

- Appears to be well secured.

-PBAPS#2 6

'CRD Hydraulic Control Units PBAPS#2 7

CRD Hydraulic Control Units PBAPS#2 8

Transformer Flexible base, PBAPS#2 9

Instrument Rack PBAPS#2 10 instrument Rack Base PBAPS#2 11 E234 Emergency Aux 4kV ABB Impell noted that Load Center Switchgear the transformer did (Photo did not develop) not appear to be anchored to the floor, it is supported through friction on the floor and by continuous sheet metal to adjacent sections of the switchgear.

PBAPS#2 12 E234 Emergency Aux 4kV Holst stored close to Load Conter Switchgear switchgear. Also F

note block walls.

PBAPS#2 13 Instrument rack base.

Possible anchor bolt spacing due to proximity of anchor bolts for two adjacent racks.

.PBAPS#2 14 Instrument rack.

-PBAPS#2 15 Replacement transformer for

[

E234.

PBAPS#2-16 Replacement transformer for -

E234.

PBAPS#2.

17, Replacement transformer for E234.

Ml0GRAMMATIC SOLUTIONS allJerares Torupee. Sade INE 1%eart Gid)Jdi 2M5 4

m; Nrw Yora !!187

. Fax: 616)3418893

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ROLL-PHOTO

' DESCRIPTION COMMENT PBAPS#2_.

18 Limitorque operator for sluice Note: the brown

gates, column extending out of the operator is a plastic cover for the riser screw.

PBAPS#2 19 Diesel.

mu mmmmmmmmmmmmmmmmmmu ROLL PHOTO DESCRIPTION COMMENT.

PBAPS#2

-20 Diesel.

PBAPS#2 21 Diesel supports.-

Cantilevered out of the sides of the diesel body to the-skid.

PBAPS#2-22 Diesel support.

Box frame from the diesel body to

[

the skid.

i PBAPS#2 23 Diesel Day Tank Anchorage PBAPS#2 24 Diesel Day Tank, i

PBAPS#2-25 Diesel Day Tank.

i PBAPS#2 26 Air Receiver

- PBAPS#2 27 Air Receiver PBAPS#2 28 Air Receiver Anchorags PBAPS#2 29 Lube Oil Storage Tank PBAPS#2 30 Typical Embedment - Vertical Green Channel.

PBAPS#2 31 Aux Lube Oil Pump t

PBAPS#2

.32 Aux Lube Oil Pump

= PBAPS#2 33-Aux Lube Oil Pump PBAPS#2 34 Lube Oil Filter j '

PBAPS#2:

35 Lube Oil Filter Anchorage Appears to be welded to the tread plate.

2 PBAPS#2 36 Diesel Bridge Crane PBAPS#2 37-Resistor.

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NOGRAMMADC 50 Lim 0N5 Cll Joirhe TunnpEs. Sube 1086 Pheet: Old)3412985 h New Yest11787 Far: Ofd)Jdt 889J F

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A Roll # PBAPS#3 Page of

-ROLL PHOTO DESCRIPTION COMMENT l

PBAPS#3-1 Dampers above the diesels PBAPS#3 2

Vold

'PBAPS#3 3

Heater supports Note that the heater is supported by channels (green) above the heater.

j PBAPS#3 4

Exterior - from diesel suilding i

PBAPS#3 5

Exterior from diesel building i

PBAPS#3 6

Valve in Cardox Room Tread plate is missing (diesels) two attachments (on left side). Can be moved easily by hand.

i-PBAPS#3 7

Valve in Cardox Room (diesels) 4 j

'PBAPS#3 8

Fan Motor PBAPS#3 9

Fan Motor Support Vibration Dampers under the box frame.

Lateral supports are bumpers.

1 PBAPS#3 10 Fan Motor Support -

Vibration Dampers.

PBAPS#3 11 Temperature Controller.

PBAPS#3 12 Fan-PBAPS#3

'13 Dampers to ceiling of the diesel room PBAPS#3-14 Louvers to outside 4

PBAPS#3:

15

. Louvers to outside PBAPS#3

-16 Detail for pendant light Open Hook-PBAPS#3 17-Pump in Cardox Room Probably not on SSEL NOGRAMMATIC SOLUTIONS SilJnirhe Turunpne,Sabr 200E theer: 016)3412903 m New Yout 18781 '

Fat: 016)3618093

)

ROLL -

PHOTO'-

- DESCRIPTION '

COMMENT -

L PBAPS#3 18.4 Substation outside diesel-building PBAPS#3 19 Cooling Towers Units 2 &

3 mu mmmmmmmmmmmimummmmmu

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1-ROLL PHOTO

' DESCRIPTION '

COMMENT PBAPS#3 --

20-ESW Pump PBAPS#3

-21 ESW Pump PBAPS#3 22 ESW Pump b

PBAPS#3 23 MCC Insulation on Valve is very close to the l_

MCC. Possible seismic interaction concern.

PBAPS#3 24 High Pressure Service Water Pump PBAPS#3

-25 High Pressure Service Water 4

i Pump PBAPS#3 26 Emergency Lighting Power Door is left open l

Pack, with battery sitting in the open.

j Possible housekeeping /sels mic interaction concern.

PBAPS#3 27 Support for fan.

r PBAPS#3 28 Cliff behind the plant

'PSAPS#3 29 Cooling Towers - Units 2 & 3 PBAPS#3 30 Unit 1 PBAPS#3

~31 Unit 2 and Turbine Building PBAPS#3 32-Unit 3 and Turbine Building PBAPS#3' 33 Units 2 and 3 PBAPS#3

-34 Units 2 and 3 i

PBAPS#3-3 5.-

Cliff behind the plant

-PBAPS#3-36 Vold NOGRAMMATIC SOLUTIONS Ell 20046e hunpne,Sehr198E.

theer: r$16)36l1985 h New Fort 11787--

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ENCLOSURE 6.2 Third Party Audit Photo Log from Novernber 10,1994 (4 pages)

PHOTO LOG PEACHBOTTOM UNITS 2 & 3 (November. 10,1994)

R :ll ( 1 2 Page of ROLL PHOTO DESCRIPTION COMMENT WNf-OBfoo9 44 &suada< &>n [rAnedhe

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PROGJtAMMATIC SOLUTIONS 24 WeeMer Ase., Sehe 12 Merehret, NY !!NE Phoer: Ofd)2df JJN

PHOTO LOG PEACHBOTTOM UNITS 2 & 3 (November 10,1994)

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PHOTO LOG -

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ENCLOSURE 6.3 Third Party Audit Letter 040 93 016 L (August 16,1993)

(1 page)

~-

~.

PROGRAMMATICSOLUTIONS 040 93-016 L twled i 1$1 em Phone:31636I 29R3 far:316 3618893

- August 16,1993 Mr. R. E. Daniels

- Philadelphia Electric Company Chesterbrook Corporate Center 965 Chesterbrook Blvd.

Wayne, PA 190887-5691

SUBJECT:

Preliminary Peer Review Walkdown at Peach Bottom

Dear Mr. Daniels:

Programma6e Solu 6ons performed a preliminary Peer Review Walkdown at Peach Bottom Atomic Power Station on July 15,1993. Attached please find a copy of the general conclusions from this preliminary walkdown and a set of the photographs taken at that time.

The general conclusions reached during this walkdown are as follows:

1.

In general the equipment appears to be well designed for seismic loads. This includes strong anchorage and such design features as top bracing of MCCs.

f 2.

While some minor problems were seen, general good housekeeping appears to be implemented (note: the control room was not visited).

3.

Block walls are common in many areas. The 88-11 program results should provide a basis for acceptability for USl A-46. The block mils mav however present a significant vulnerability for the seismic IPEEE program.

Should you have any quesbons or comments regarding these conclusions and the attached photographs, please do not hesitate to call me at (516) 3612985.

Your,s truly,

[t Johnson rogrammatic Solutions

1 ENCLOSURE 6,4 Third Party Audit Meeting Minutes (November 11,1994)

(1 page)

92MMMMA TIf' Cnf 11TinMC im' 24 N eneher Anner.Sene 12

^horrhport,New rert 19768 1%ent:t$l61MI 3336 fm? t316) NI J?)2 MEETING MINUTES PARTICIPANTS:

PECO Energy: Rick Daniels, Dan Florello Programmatic Solutions: Harry Johnson, Don Rutherford DATE:

November 11,19N

SUBJECT:

PeachBottom Units 2 & 3 Walkdown (focus on Unit 2)

We performed a Peer Review walkdown of Unhs 2 & 3 with a focus on Unit 2. The pievious walidown at PB focused on Unh 3.

Documentation of the walkdown is provided on the photo log and photos.

Some of the observations made during the walkdown are summarized below:

' l.

Pendant. lights have open books in the attachment to the ceiling. How has this been considered for seismic interaction by the walkdown team?

2. -

Many instances of taut cable were seen at the plant (oRen the cable from a valve operator to its first support is taut).

3.

. In the relay spot check it is my understanding that the SRT relied completely on visual inspection. For relays that are not mounted either by screws to the mount or mounted with restraining clips) what is the basis for asaning that the relay is "snu3 n its mounting bracket".

i Typically this is done by careful hand tugging on the relay.

4 In Battery Room (2DD001) open S-hooks were seen for the fluorescent lights.

' 5.

He Shsce Gate Motor operators are in very close proximity to grating and steel structurals.

How was this evaluated?

6.

Some ofthe scaffolding is very tall and appears to be tied off only at the top. We saw several mstances of this. How was this evaluated?

F

s 1

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i ENCLOSURE 6.5 e

i Third Party Audit Letter 040 95-009 L (August 11,1995)

(2 pages) 1.

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i PROGRAMMATIC AOLT]TIGNR 040-95 009-L N Wesewie Aussent. Amlet il Narnpers. NYIINo PI6ame:316 Ni $$N foer $16 NIlill l

August 11, 1995 Mr. Richard Daniels PECO Energy Company

%5 Chesterbrook Boulevard Wayne, PA 19087

SUBJECT:

Peach Bottom Atomic Power Station, Units 2 & 3 USI A-46

REFERENCE:

" Seismic Evaluation Report for Peach Bottom Atcmic Power Station,'

Conceptual - transmitted on 8/7/95

Dear Mr. Daniels:

The following are some additional observations that I have on the subject conceptual report. These comments are related to the outliers identified.

1.

The existing discussion included in the reportis quite vague when it comes to the outliers.

I assume that there will be additional inforination provided in the report regarding the details of the outliers.

2.

From my plant walkthrough of PBAPS I identified some items that appeared to me to be outliers. As far as I can tell, most of those observations are nct included in your list of outliers. This may be because the SRT judged that they are acceptrble. Except for the interaction items, the items were not clearly outilers to me. The attachW table summarizes those observations that I made that may not be addt ssed ts outliers.

Should you have any questions or need any further clarifications, gi:ase call me at 516 261 3

5536.

Yours truly, Ah_

Mr. R. E. Daniels August 11,1995 Page 2 i

J V

issue Programmatic Solutions Clearly an Outlier?

Photo (Y/N)

(Roll / Photo)

LW Spm breaker stored adjacent 1/26 N a g,y i

to switchgear interaction Retired support, anchorage 1/34 N

veryloose interaction Holst stored close to 2/12 N

b' switchgear interaction

%T)2(NU)M8 h" Instrumeist rack anchor bolt 2/13 Probably spacing Lube oil filter appears to be

-2/35 Probably welded to trend plate Trend plate around valve in 3/3 Probably diesel Cardox room missing two bolts can easily be moved by hand interaction Insulation on valve close to 3/23 Y

MCC - interaction Door on emergency light 3/26 Y

open (battery is in the open) interaction Many instances of taut cable N/A Y

(often cable from valve operator to first support is taut)

Sluice gate moor operators N/A Y

in very close proximity to grating and steel - interaction Some very tall scaffolding N/A Y

tied off only at the top -

interaction

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4 ENCLOSURE 6.6 -

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Third Party Audit 1

Letter 006740084 234 (February 24,1996)

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VECTRA February 24,1996 0067-00084 234 l

l l

PECO Energy Company l

Nuclear oroup Headquarters

?

965 Chesterbrook Boulevard _

i Wayne,PA 19087 Attention:

Mr. Dave Honan l

Project Manager

Subject:

Response to Programmatic Solutions Letter 040 95 009L Third Party Audit, Observations i

r Gentlemen:

[

This letter responds to the observations made in the subject Third Party Audit letter, f

Programmatic Solutions inc, the Third Party Reviewer for the USI A-46 and IPEEE Program in i

their letter 040 95 009L, dated August 11,1995 to PECO Energy Co identified some items that they believed could be considered outliers. These items were identified by the Third Party Reviewer during the Peer Review walkdown at Peach Bottom Atomic Power Station Units 2 and i

3 in July 1993. The attached Table to the Programmatic Solution Letter summarizes those observations that the Peer Reviewer believes were not addressed as outliers by the SRT during his myiew of the Conceptual Seismic Evaluation Report for Peach Bottom Atomic Power l

Station.

Although the Peer Review walkdown was performed in July 1993, the SRT seismic capability final walkdowns were not initiated until October 1993 and were not completed until May of 1995 for mechanical and electrical equipment. The SRT walkdowns requimd several trips to perform all walkdowns. Each trip typically lasted four days. Additional trips after May 1995 were required to focus on specific plant issues such as cable trays that necessitated additional reviews.

The observations reposted by the Peer reviewer but not specifically addressed or noted on the '

- SEWS or OSVS, were not oversights, but were judged acceptable by the SRT at the time of the l

= SRT seismic capability _walkdowns.

Some observations noted by the Peer Reviewer which existed during his walkdown may have i

. been resolved prior to the SRT walkdowns. 'this could be the case for the support with the -

missing bolts which may have been in the modification or installation phase of removal.

f 1

.VECTitA Technolog'es. Inc.

• 12 Michieon Drive.

• Notick, MA 01760 Tel:(508) 6471000

• Fou:(508)647 0294

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. a

y Febmary 24,1996

[

VECTRA 0067 000 4-234 1

Page 2 l

-l 4

i To reverify that the Peer Reviewer observations were not missed by the SRT during the -

walkdown phase of the program, the SRT performed a confinnatory walkdown February 7,1996 i

at PBAPS. De SRT was composed of Mr. R. Daniels and Mr. D. Florello, members who had participated on the seismic walkdowns previously..

l l

This walkdown served to confirm the SRT position that the observations noted by the Peer Reviewer were not outliers, ne results of the confirmatory walkdown are presented below:

l

!) Spare breaker stored adjacent to switchgear (emergency switchgear)

This was noted by SRT on applicable SEWS.

7

2). Retired support, anchorage very loose Believe this is in Unit 3 RCIC room. Support has been removed and floor repainted.

l t

3) Holst stored close to switchgear (Iow voltage switchgear) nis was noted by SRT on applicable SEWS.

4). instrument rack anchor bolt spacing

- This was noted by SRT on applicable SEWS and considered in anchorage evaluations.

5) Lube oil filter welded to tread plate

[

nis occurs in all four diesel rooms. Two feet are welded directly to supporting structural members. Ore foot is welded to tread plate directly above supporting structural member.

Fourth foot is welded to tread plate. Tread plate is welded to suppoiting structural members. Configuration lajudged to be acceptable.

6) Tread plate around valve in Cardox room missing two bolts v At valve MO-2 32-2g03 there are no clips holding the tread plate in place. De only potential target is a hand valve below the grating. The condition was judged acceptable.

_At valve MO-3 32 3803 the tread plate is held by two clips. De support was judged to be suf11cient to secure the grating.

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VECTRA 0067-000:4 234 Febmary 24,1996 Page 3 j

i:

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7) Insulation on val., close to MCC

-l

!his is in Unit 2 ESW Pumphouse.

Clearance between MCC and insulation on valve operator is approximately 1/2" at front of MCC and clearance between MCC and insulation on pipe is slightly less at back of MCC.

The pipe is weli supported and the MCC is braced at the top. Seismic movements of both components should be minimal.

Also, the insulation is thick and soft, su if an impact were to occur it would be cushioned.

' Conditions werejudged to be acceptable.

[

8) Door on emergency light open (battery is in the open)

This is in the Unit 2 ESW Pumphouse, Door was closed and secured on 00D309, Also, there were no credible SSEL targets that could be impacted by a falling battery, f

On the Unit 3 side, the door to 00D310 was closed but not secured by screws. There are, however, no creditable SSEL targets that could be impacted by the falling battery..

l

9) Many instances of taut cable

- Flexibility of electrical cables was considered by the SRT at every SSEL component, and all instances were judged to be acceptable.

t

10) Sluice gate motor operators in very close proximity to grating and steel These components are located outside of the ESW Pumphouse and inside the latake Structure. Four motor operators were reviewed.

No grating' was found near any of the motor operators.

l The following two motor operators have no potential interactions MO 2 30 2233A MO 3 30 3233A t

-1'lhe stems of the following two motor operatus extended up close to structural steel l

~

beams that were notched to provide clearance. The stems are well supponed and the j

clearance isjudged to be adequate.

f

- MO 2 30 2233B.

MO-3230 3233B l

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. Febmary 24,1996 VECTRA 0067-o00:4 234 Page 4 i

11) Some very tall scaffolding tied off only at the top 1

'. *!his was possibly located near the HCUs at Elevation 135'-0 in the Unit 3 Reactor l

Building.

j the condition was noted by the SRT during the walkdown and considered to be i

acceptable.- Scaffold is controlled by Procedure M C 700 335.

1 Based on the GJ walkdowns performed as part of the USl A 46 and IPEEE Program and the confirmatory walkdown performed by Mr. R. Daniels and Mr. D. Fiorello, VECTRA believes -

that all observations noted by the Peer Reviewers were adequately addressed.

j

. If you have any questions,' please cdl me at (508) 647 1040, i

.~

Sincerely.

James A. Flaheny, P.E.

Project Manager 1

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cc:

R. Daniels D. Fiorello i

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ENCLOSURE 6.7 Third Party Audit Summary of Outiler Disposition (3 pages)

THIRD PARTY AUDIT

SUMMARY

OF OUTLIER DISPOSITION TYPE OUTLIER EQUlPMENT IDENTIFIED IN PEER REVIEW (example of issue)

Outlier resolved without 20B36, 20X30, 20X31, 20X32, modification 20X33,2AP42,2BP42,2CP42, 2DP42, A02-03 32A, A02-03 328, A02-01-080A, A02 01-0808, A02-01-0800, A02 010800, A02 01-086A, A02-01086B, A02-01086C, A02 01-086D, A02-03 35A, A02 358, RV2-02 071 A, RV2 02 0718 RV2 02-071C, RV2-02 071D, RV2-02-071E, RV2 02 071F, RV2 02-071G, RV2 02 071H, RV2 02 071J, RV2 02-071K, RV2 02 071L, M02-10 016A, M0210 0168, M0210 016C, M0210-016D, M0210 025A, M02-10-025B, M02 23 025, M02 30 2233A, M02 30 22338, M02 23 019, SV-81308, OAK 032, OAK 032, OCK032,2AD01, 2BD01,2CD01, 20D01,2AC65,2BC65, PT 25088, 2AE24,2BE24,2CE24,2DE24, 30X31, 30X33, 3AP42,3BP42, 3CP42,3DP42, A03-01-080A, A03-01-0808, A03-01080C, A03 080D, A03 01-086A, A03-010868, A03 01-086C, A03 01086D, RV3 02-071 A, RV3-02-071B, RV3 02-071C, RV3-02-071 D, RV3-02-071E, RV3-02-071F, RV3-02 071G, RV3-02-071H, RV3-02-071J, RV3 071K, RV3-02-071L, A03-03-32A, A03-03 328, A03-03 ?5A, A03 358, M310-025A, M0310-0258, M0310-016A, M03-10 0168, M03-10-016C, M0310-016D, M0312 015. M0312-018, M03 23-019, M03 23-025, M03 30-3233A, M03 32338, 3AD01,3BD01,3CD01,

)

3DD01,3AC65, PT 35088,3AE24, 3BE24, 3CE24,3DE24, 00853, 00854,00B55,00856,00B97, 00098, OAX26, OBX26, OCX26, l

OAP57,0BP57,00F043, OAC097, OAG13,0BC097,0BG13,0CG097, OCG13, ODC097, ODG13.

Unanchored transformer 20010,20B11,20012,20B13, yes (mod required) 20X30, 20X31, 20X32, 20X33, 20010,30811,30812,30813, 30X31, 30X33, OAX26, OBX26,

OCX26, t

Unrestrained breaker 20B10,20B11,20B12,20813, yes hoist (mod required) 30B10,30811,30812,30813 00B97,00898,00899,00894, 00895,00896,-

l Secure latch 20A15,20A16,20A17,20A18, no (maintenance required) 30A15,30A16,30A17,30A18, Low rugged relay 20A15,20A16,20A17,30A15, no 30A16,30A17,30A18, Spare breaker not 20A16,20A17,20A18,30A15, yes adequately secured 30A16,30A17 Interaction (mod 2AP42,2BP42,2CP42,2DP42, yes required) 20C32,20C33,20C722A, 20C7228, 3AP42, 3BP42, 3CP42, 3DP42, 30C32, 30C33, 30C722B, OAP57, OBP57, MO 33 0498, OAV035, OAV036, 0BV035,0BV036,00F043, Inadequate equipment 20D11, 30X133, 30X135,30X150, yes suppott (mod required) 00B94; 00895,00896, OX103, OAG12,0BG12,0CG12,0DG12, inadequate distributed P0202231, P020223 3, DPS20224-no system support (mod 1, DPS20224 3, HCU, Cable and required)

Conduit Raceway Systems, Cable and Conduit Raceway Systems j

(radwaste bldg.),

r Not yet resolved 20X133,20X150, A02 03 33, A03-n/a 03 33, OAV034, Narrow (14") distribution 20021, 20022,20D23, 30D22, no

_ panels (mod required) 30023,30D24, Open S hook (mod 20D01,2CD01, 2DD01, 3BD01, yes required)

3DD01, Battery rails not snug 3AD01, 3BD01,3DD01 no Loose fasteners TIC 30223, Cable and Conduit yes (maintenance required)

Raceways Systems (turbine bldg.),

........m

Housekeeping 20D37,200124,20C139, 30C124, yes 30C32,30C33, OAG12, OBG12, DCG12. ODG12, OAC097, OAG13, OBC 097, OBG13, OCG097, OCG13.

0DC097, ODG13,00C29A,00C298, 00C29C,00C29D, S %ttachment for RED 0714. doc

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F ENCLOSURE 7.2 Floor Response Spectra for Cable Spreading Room Elevation Direction 150' 0" EW 160' 0" NS 165' 0" EW 165' 0" N-8 (4 pages) 4 e-y my wy

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