Text

Power Spectral Density (Psd) of Ground Motion Input Used in Soil-Structural Interaction (SSI) Analysis
	ML20116M572
Person / Time
Site:	Point Beach
Issue date:	05/17/1996
From:	; STEVENSON & ASSOCIATES
To:	;
Shared Package
ML20116M418	List: ML20116M411; ML20116M419; ML20116M423; ML20116M430; ML20116M446; ML20116M458; ML20116M477; ML20116M493; ML20116M497; ML20116M572; ML20266H889; ML20266H893; ML20266H897; ML20266H900; ML20266H904; ML20266H908; ML20266H912; ML20266H915; ML20266H919;
References
	REF-GTECI-A-46, REF-GTECI-SC, TASK-A-46, TASK-OR C-035, C-035-R00, C-35, C-35-R, NUDOCS 9608200218
	Download: ML20116M572 (62)
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Client: Wisconsin Electric Power Company Calculation No. C-035

Title:

Power Spectral Density (PSD) cf the Ground Motion input Used in the Soil-Structural Interaction (SS!) Analysis 1

Project:

Point Beach USI A-46 / IPEEE J

)

Method:

i 1

1 Acceptance Criteria:

Remarks:

i I

i REVISIONS No.

Description By Date Chk.

Date App.

Date 0

Original Issue If6b T/17/%

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d)h 5[//.[f(,

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CALCULATION CONTRACT NO.

COVER SHEET 91C2696 O

Stevenson & Associates FIGURE 1.3 9608200218 960915 PDR ADOCK 05000266 PDR p

CAL. NO. 91C2696 C-035 SHEET #1 of 6

SUBJECT:

Point Beach A-46/IPEEE Revision 0 Stevenson & Associates PSD of the Ground input Motion Used By MSL 5/17/96 a structurakrnechanical in the IPEEE SSI Study Chk. WD 5/17/96 consutting engineering firm Table of Contents

1. Introduction.

.2

2. Power Spectral Density Generation............

.2

3. Reference.

.. 2

4. Appendix A: Plot of Power Spectral Density.,

...3

5. Appendix B: List of Power Spectral Density.

... 4

6. Appendix C: Computer Program Cover Sheet...

.5

/

l CAL. NO. 91C2696 C-035 SHEET #2 of 6 l

SUBJECT:

Point Beach A-46/IPEEE Revision 0 Stevenson & Associates PSD of the Ground input Motion Used By MSL 5/17/96 a structural-mechanical in the IPEEE SSI Study Chk. WD 5/17/96 consulting engineering firm l

1. Introduction The purpose of this calculation is to generate the Power Spectral Density (PSD) of the ground input motion used in the Soil-Structural Interaction (SSI) analysis for the Point Beach Individual Plant Examination of Extemal Events (IPEEE) seismic events.

2. Power Spectral Density Generation input Motion Time History The input motion of Point Beach IPEEE SSI analysis is based on the mean (arithmetic) hazard estimates from Lawrence Livermore National Laboratory (LLNL) and the median spectral shape for a 10,000-year return period with a Zero Period Acceleration (ZPA) level of 0.4G. The acceleration time history and response spectrum of the input motion are reported in Reference 1.

Method of Conversion The S&A's computer program SPECTRA (2) is used to converse the Time History (TH) to Power Spectral Density (PSD). The SPECTRA program is capable of converting between different forms of excitation, namely, time histories, response spectra, and power spectra. Further information about the conversion O

can be found in Reference 3. The conversion process is straightforward. The only parameter is the frequency span in which the power spectral censity to be generated. The results are plotted and listed in Appendix A and B, respectively.

3. Reference 1.

S&A, ' Point Beach Soil-Structure Interaction and IPEEE Floor Response Spectra *, Project No.

91C2696, Calculation No. C-001, Rev. O, June,1995.

2.

S&A," SPECTRA 2.0 User Manual", April 1994.

3.

S&A, " SPECTRA 2.0 Assurance Manual", April 1994.

O v

MAY 231996

CAL. NO. 91C2696 C.035 SHEET 03 of 6

SUBJECT:

Point Bxch A-46/IPEEE Revision 0 O

Stevenson & Associates PSD of the Ground input Motion Used By MSL 5/17/96 a structural-mechanical in the IPEEE SSI Study Chk. WD 5/17/96 consulting engineering firm

4. Appendix A: Plot of Power Spectral Density BUILDING : OUTDOOR ELEVATION : Ground DIRECTION : Horizontal MODEL : LLNL4Gs 4

10

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...L..L_2.2.t.

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1 10 100 Frequency (Hz)

Figure A Power Spectral Density of the Input Motion Used in the IPEEE SSI Study

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1 CAL NO. 91C2696 C-035 SHEET #4 of 6

SUBJECT:

Point B::ach A-46/IPEEE Rsvision 0 1

i l

v Stevenson & Associates PSD of the Ground input Motion Used By MSL 5/17/96

\\

a structural-mechanical in the IPEEE SSI Study Chk. WD 5/17/96 i

consulting engineering firm l

1

5. Appendix B: List of Power Spectral Density

}

Freq. (Hz)

PSD (G^2)

Freq. (Hz)

PSD (G^2)

Freq. (Hz)

PSD (Ga2)

Freq. (Hz)

PSD (G^2)

Freq. (Hz)

PSD (G^2)

{

0.00 6.12E 08 10.00 6.10E-05 20.00 5.49E 05 30.00 4 09E-05 40.00 2.10E-06 0.25 6.14E 07 10.25 8.13E-05 20.25 5.85E 05 30.25 4.21E-05 40.25 3.04E 06 0.50 5.09E-06 10.50 5.64E-05 20.50 3.59E 05 30.50 3.10E-05 40.50 4.10E-06 0.75 1.05E-05 10.75 6.83E-05 20.75 3.40E 05 30.75 3.08E-05 40.75 4.16E 06 1.00 3.08E-05 11.00 9.09E 05 21.00 5.53E 05 31.00 3.59E 05 41.00 2.96E 06 1.25 4.45E 05 11.25 1.61E 04 21.25 4.46E-05 31.25 3.03E-05 41.25 5.82E-06 1.50 6.28E 05 11.50 1.17E 04 21.50 2.49E 05 31.50 2.55E-05 41.50 3.38E 06 1.75 1.13E-04 11.75 1.55E44 21.75 3.66E 05 31.75 2.16E-05 41.75 7.92E-06 2.00 3.72E 05 12.00 1.45E-04 22.00 3.75E 05 32.00 2.17E 05 42.00 4.99E 06 3

2.25 8.23E-05 12.25 1.67E-04 22.25 1.74E-05 32.25 1.03E 05 42.25 2.84E 06 l

2.50 2.01E 05 12.50 1.91E-04 22.50 4.09E 05 32.50 1.29E-05 42.50 3.52E-06 2.75 9.91 E-05 12.75 1.27E44 22.75 4.14E-05 32.75 1.54E 05 42.75 6.79E-06 3.00 7.04E 05 13.00 8.64E 05 23.00 4.025-05 33.00 2.52E-05 43.00 1.12E 05 i

3.25 9.59E-05 13.25 2.89E 05 23.25 3.74E-05 33.25 2.84E 05 43.25 7.12E-06 3.50 1.59E-04 13.50 7.71E45 23.50 1.80E 05 33.50 2.59E-05.

43.50 7.72E-06 3.75 6.16E 05 13.75 1.06E 04 23.75 1.91E 05 33.75 2.79E-05 43.75 7.20E 06 g

4.00 2.42E-04 14.00 7.51E-05 24.00 3.36E 05 34.00 1.95E 05 44.00 3.78E 06 l

4 25 1.74E-04 14.25 5.51 E-05 24.25 2.54E-05 34.25 2.86E-05 44.25 5.10E 06 4.50 1.85E-04 14.50 9.65E 05 24.50 2.56E45 34.50 1.79E-05 44.50 6.90E 06 4.75 1.87E44 14.75 1.12E44 24.75 2.89E 05 34.75 2.67E 05 44.75 5.74E 06 5.00 4.67E 04 15.00 2.44E-05 25.00 2.47E 05 35.00 2.22E-05 45.00 3.37E 06 5.25 1.71E 04 15.25 8.34E 05 25.25 2.46E 05 35.25 1.45E 05 45.25 5.30E 06 5.50 9.15E 05 15.50 6.64E-05 25.50 3.00E45 35.50 1.31E 05 45.50 6.74E 06 5.75 1.11 E-04 15.75 5.92E-05 25.75 3.19E 05 35.75 1.08E 05 45.75 3.68E-06 6.00 1.83E 04 16.00 5.87E-05 26.00 2.65E-05 36.00 1.82E 05 46.00 6.73E 06 l

6.25 9.57E-05 16.25 6.90E45 26.25 2.32E-05 36.25 1.71E-05 46.25 6.42E-06 6.50 3.73E 05 16.50 7.06E 05 25.50 4.22E-05 36.50 1.39E-05 46.50 6.07E 06 6.75 7.08E 05 16.75 7.19E-05 26.75 5.73E 05 36.75 1.31E 05 46.75 4.51E-06 7.00 9.90E 05 17.00 2.1C505 27.00 2.78E-05 37.00 2.35E-05 47.00 3.24E 06 7.25 1.52E 04 17.25 4.77E-05 27.25 5.07E 05 37.25 2.00E 05 47.25 4 22E 06 7.50 2.19E 04 17.50 7.32E 05 27.50 6.13E 05 37.50 1.69E 05 47.50 3.05E 06 7.75 2.64E 04 17.75 4.73E-05 27.75 5.57E 05 37.75 6.10E 06 47.75 3.20E 06 8.00 2.10E44 18.00 2.65E 05 28.00 1.16E 05 38.00 1.23E 05 48.00 1.63E 06 l

8.25 4.02E 04 18.25 1.93E 05 28.25 4 55E 05 38.25 9.08E-06 48.25 1.28E-06 8 50 1.63E 04 18.50 2.78E-05 28.50 5.30E 05 38.50 1.58E 05 48.50 1.69E 06 8.75 1.14E44 18.75 1.69E 05 28.75 5.82E 05 38.75 7.86E-06 48.75 2.38E 06 9.00 1.09E44 19.00 6.21 E-05 29.00 3.90E-05 39.00 1.02E-05 49.00 1.89E 06 O

9.25 6.80E-05 19.25 5.76E 05 29.25 3.68E 05 39.25 8.30E 06 49.25 1.33E 06 9.50 7.01 E-05 19 50 1.90E 05 29.50 4.50E 05 39.50 6.01E 06 49.50 5.50E 07 9.75 6 55E 05 19.75 4.53E 05 29.75 5.07E 05 39.75 5.12E-06 49.75 6.67E 07

CAL. NO. 91C2696 C-035 SHEET #5 of 6

SUBJECT:

Point Beach A-46/IPEEE Revision 0 i

Stevenson & Associates PSD of the Ground input Motion Used By MSL 5/17/96 a structural-mechanical in the IPEEE SSI Study Chk. WD 5/17/96 consulting engineering firm

6. Appendix C: Computer Program Cover Sheet 4

a

)

i

/

O O

i Calculttion No. C-035 Sheet #6 of 6 i

DESCRIPTION OF ANALYSIS:

Conversion of Time History (TH) Data into Power Spectral Density (PSD) t COMPUTER CODE:

SPECTRA VERSION: 2.0 RELEASE DATE:

April 1994 AUTHOR / VENDOR:

S&A COMPUTER TYPE / SYSTEM:

IBM Compatible.

PROGRAM STATUS:

O Project Specific S GeneralUse/QA Approved VERIFICATION / VALIDATION DOCUMENTATION:

O Attac.hed E On File RUN NUMBER:

ORIGINATOR DATE CHECKER DATE INPUT REPRODUCED MSU 5/17/96 WD 5/17/96 ON LISTING MODEL VALID AND MSU 5/17/96 Wb 5/17/96 O

ASSUMPTIONS DOCUMENTED PROGRAM APPROPRIATE AND MSL'i 5/17/96 WD 5/17/96 ADEQUATE MODEL BEHAVES MSU 5/17/96 WD 5/17/96 REASONABLE RESULTS PROPERLY MSU 5/17/96 WD 5/17/96 INTERPRETED REMARKS:

Input File: SPECTRA Database PBSSI in REF. 2.

Output File: SPECTRA Database PBSSI COMPUltR PROGRAM CONTRACT NO.

COVER SHEET 91C2696 FIGURE 2.8

J G

4. For all human actions modeled in the SPSA, please indicate when and precisely where each action is required. Also, identify the number and locations of remote shutdown panels, and identify the equipment that,are available from the remote shutdown panels.

Discuss the capabilities available from the remote shutdown panels to adequately mitigate the important transient and small LOCA initiators, as credited in the SPSA.

J Operator Actions Credited in the PBNP IPEEE Analysis HEP Basic Event HEP Description When used Precisely where used HEP-125-EOP10-08 Failure to restore battery Used to recover long term DC Action performed entirely l

chargers following loss of power following a LOOP.

Inside the control room j

A05/06 and power recovery Failure = CD Sequence PB2-11 HEP-CCW-EOP13-03 Failure to restart CCW Following LOOP and small Action performed entirely pumps following loss of LOCA. (ETs: SL3A,4A, SA) inside the control room A05/06 and SL HEP-CCW-OI-71-42 Failure to align standby Following LOOP and small Requires actions external to CCW HX when needed LOCA. (ETs: SL3 A,4A,5A) the control room. PAB,44' elev. CCW area.

HEP-HHR-EOP13-23 Failure to align ECCS for Establishing long term ECCS Requires actions external to HP containment sump cooling following small LOCA the control room. PAB, recirc Failure = CD Sequences SL#-2 various elevations and areas HEP-RC-EOP-1-05 Failure to isolate stuck open During simple transient (no Action performed entirely PORV with block valve LOOP). Does not lead directly inside the control room m

to CD.

HEP-RP-CSPSI-01 Failure to SCRAM Rx via Following failure of automatic Action performed entirely deenrgzng rod drive MGs SCRAM.

Inside the control room HEP-SW-EFOLDOUT Failure to provide SW B/U In normal sequences requiring Action performed entirely to AFW suction following AFW once CST is depleted.

Inside the control room CST depletion HEP-VCC-ECA02-03 Failure to restart Following a LOOP with no Action performed entirely containment fan coolers small LOCA.

Inside the control room Cl-EOP--FO-00024 Failure to manually initiate Once BW 5-5/2A fails and Action performed entirely containment isolation destroys the containment inside the control room pressure transmitters that would automatically initiate CI HEP-SW-EQFOLDOUT Failure to provide SW B/U Once the operations office Action performed entirely to AFW suction following block walls fail seismically, fall inside the control room CST depletion with failed and destroy the CST Level CST levelinstrumentation Transmitters HEP-SSD-AOP103 Failure to safely shutdown Once control power cable trays Requires actions external to the plant from outside the underneath the main control the control room. Control control room following the boards fail seismically. (ET:

building,8' elev., AFW area; failure of the weakest cable PB0)

PAB,8' elev., Charging spreading room cable trays pump area HEP ISL-P08-SEAL Failure to recognize and Following random ISLOCA.

Action performed entirely isolate an ISLOCA from Shut: RH720, S1852A, CV133.

Inside the control room penetration P-08 Failure = CD Sequence PB0-1.

HEP-ISL-P22-SEAL Failure to recognize and Following random ISLOCA.

Action performed entirely isolate an ISLOCA from Shut SI-852B inside the control room O

penetration P-22 Failure = CD Sequence PB0-1

PBNP Remote Shutdown Panels j

Remote Control / Indication Plant Location Equipment Available SD Panel Available "B" SG WR Level -

(1-L1-470A-1)

On Panel Front Control Building "B" SG WR Pressure (1PI-483-1)

Meters 8' Elevatim "B" RCS Imp WR Th (1TI-451B-1)

"In Local Control" Warning Lights IC205 AFW Pump area "B" RCS loop WR Tc

-(ITI451C-1)

(1st cubicle inside room)

NIS Source Range Power-(INI-40E)

Inside Panel NIS Source Range SUR (lNI-40F)

Local / Remote Selector Switches j

"B" SG WR Level (2-LI-470A-1)

On Panel Front Control Building "B" SG WR Pressure (2PI-483-1)

Meters 8' Elevatim "B" RCS Imp WR Th (2TI-451B-1)

"In Local Control" Warning Lights 2C205 AFW Pump area "B" RCS loop WR Tc (2TI-451C-1)

(1st cubicle inside room)

NIS Source Range Power (2NI-40E)

Inside Panel NIS Source Range SUR (2NI-40F)

Local / Remote Selector Switches Motor Driven AFW Pump--

(P38A)

On Panel Front Control Building Service Water Pumps--

(P32A)

" Equipment Running" Lights an n B) 9n Local Cutror Wambg Ughts N01 AFP tunnel fan room

(P3 2 F)

Inside Panel South End of Room Containment Fan Coolers (1W-I Al)

Local / Remote Selector Switches

--(1 W-1 B l)

Start & Trip Push Buttons Motor Driven AFW Pump (P38B)

On Panel Front Control Building Service Water Pumps (P32C)

" Equipment Running" Lights 8' Elevation (P32D)

"In Local Control" Warning Lights N02 AFP tunnel fan room (P32E)

Inside Panel q

g North End of Room Containment Fan Coolers-(2W-lCl)

Local / Remote Selector Switches (2W-lDl)

Start & Trip Push Buttons Containment Fan Coolers

-(1W lC1)

IN03 Adjacent to N01 Same as N01/N02

-(1 W-IDl)

Containment Fan Coolers (2W-1 A1) 2N03 Adjacent to N02 Same as N01/N02 (2W 1B1)

Charging Pumps-----

(1P2A) j PAB,8' Elevation, Outside (IP2B) yg Same as 2N04 1P2A Charging pump cube LD Orifice Isolation Valves --(ICV-200A,B,C)

Pressurizer B/U Heaters--

(ITIC)

Pressurizer Level (2LI-426-1)

On Panel Front RCS Pressure (2PI-420C-1)

" Equip nent Running" Lights PAB,8' Elevation, South Source Range Power *

- (2NI-40G)

"In Local Control" Warning Lights 2N04 and Adjacent to Charging Source Range SUR*-

(2NI-40H)

Inside Panel pump cubes Charging Pumps ---

(2 P2A)

Local / Remote Selector Switches (2P2B)

Start & Trip Push Buttons (pumps)

LD Orifice Isolation Valves -(2CV-200A,B,C)

Close & Trip Push Buttons (heaters)

Pressurizer B/U Heaters

-- (2 TIC)

Close/ Auto /Open Switch (valves)

Pressurizer Level (ILI-426-1)

RCS Nssure --

-(IMON)

PAB,8' Elevation, North Source Range Power *

(IN140G)

Same as 2N04 INil and Adjacent to Charging S urce Range SUR*

(lNI-40H) pump cubes Charging Pump (IP2C)

Pressurizer B/U Heaters (ITID)

PAB,8' Elevation, Outside Charging Pump

---(2P2C) 2N11 Same as 2N04 2P2C Charging pump cube Pressurizer B/U Heaters

- (2T1 D)

Local / Remote Selector Switch not available for this instrument from this panel.

1 4

Following a seismic event in which normal shutdown capability is removed, important safety functions are still provided via the remote SD panels. These panels support the safe l

shutdown of the plant by providing the ability to start and stop pumps, pressurizer heaters, and containment fan coolers, open and close letdown isolation valves, and monitor key primary and secondary parameters. The indications and specific control functions that are available at each panel are listed in the table above. The specific safety functions and how they are provided are discussed in the paragraphs below.

Decay heat removal is provided by the Motor Driven AFW pumps with steam relief via the i

steam generator safety valves (which are passive). Service water is available 'o supply AFW suction once the condensate storage tanks are depleted (approximately four h trs into the i

event), and to provide bearing cooling for the AFW pumps. The Turbine Driven AFW

[

pumps are also available from this location, via manually opening the steam admission valves (MOVs) to the pumps. These valves are located adjacent to the control panels. All of the controls and indications needed for this function are available remotely in the AFW pump area on RSD panels 1/2C-205, N01, N02, IN03, and 2N03.

RCS inventory control is provided via 3 charging pumps to each unit. These pumps initially

]

take suction on the Volume Control Tank, but can be aligned to the Refueling Water Storage Tank for long term supply. This realignment can take place either automatically (on low VCT level) or manually by opening MOVs 1/2 CV-112B which are located immediately adjacent to the remote shutdown panels INI1 and 2N04 respectively. These valves are equipped with manual handwheels to allow operation even in the event of a loss of motive or control power. It should also be noted that the Point Beach charging pumps are air cooled, therefore all that is needed for their successful operation is motive power and a supply of water to pump. All of the controls and indications needed for the RCS inventory control function are available remotely in the charging pump area on RSD panels 1/2N04 and 1/2N11.

l RCS pressure control is provided via the combination of charging, letdown, and pressurizer heaters. All of the controls and indications needed for this function are available remotely in the charging pump area on RSD panels 1/2N04 and 1/2N11.

Long term shutdown is maintained via boric acid addition using the charging pumps. The suction sources for the charging pumps are discussed above. All of the controls and

)

indications needed for the long-term shutdown function are available remotely in the charging pump area on RSD panels 1/2N04 and 1/2N11.

1 O

5. Please provide fragility calculations, completed screening evaluation work sheets (SEWSs), walkdown notes / checklists and photographs for the following components:

120 VAC Instrument Bus 1Y01-1YO4 (Block Wall failure) e CST Level Transmitters (Block Wall failure) 480V Safeguards Load Center e

Safeguards Relay Cabinet e

RWST

CST Cable Trays inside Cable Spreading Room e

Cable Trays outside Cable Spreading Room CCW Heat Exchanger e

RHR Pump Area Cooling Coil e

e Remote Shutdown Panels 4 KV Emergency Switchgear e

l Supporting Documentation for PBNP Fragility Analysis Component SEWS Fragility Cale 120 VAC Instrument Bus lY01-lYO4 (Block Wall failure)

X X

CST Level Transmitters (Block Wall failure)

Not Filled Out Assigned Low Screening Value 480V Safeguards Load Center X

X Safeguards Relay Cabinet X

X RWST X

X CST Not Filled Out X

Cable Trays inside Cable Spreading Room X

X Cable Trays outside Cable Spreading Room X

X CCW Heat Exchanger X

X RHR Pump Area Cooling Coil X

X Remote Shutdown Panels X

Screened 4 KV Emergency Switchgear X

X NOTE: X = Requested information is attached Walkdown notes and photographs are included in the completed SEWS forms.

SEWS forms were not filled out for the CST or its level transmitters, since they were not USl A-46 components. A marginal capacity fragility value was assigned to the block walls that make up the Operations Office (located above the CSTs) based on the judgment of the SRT.

All of the safe shutdown panels were screened as being seismically rugged and are therefore included in the surrogate element.

i i

4 1,

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120VAC Instrument Bus 1Y01-1Y04 (Block Wall Failure) l 1

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I Wi:c nzin Electric P.w:r Company - Paint B cch Nuclear Pl:nt GIP Rrv 2, Correct:d. 2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: Yes Sheet 1 of 4 p

ID : 1Y-01 ( Rev. 0 )

l Class : 14. Distnbution Panels

'Q Description : RED 120V VITAL INSTRUMENT PANEL Building : CB l Floor El. : 44.0000 l Room. Row / Col: AREA 3 Manufacturer. Model. Etc.

SEISMIC CAPACITY VS DEMAND l

l 1.

Elevation where equipment receives seismic input 44.00 l

2.

Elevation of seismic input below about 40' from grade (grade = 8.00)

N/A 3.

Equipment has fundamental frequency above about 8 Hz (est. frequency = 11.00)

N/A 4.

Capacity based on:

1.50

Bounding Spectrum 5.

Demand based on:

1.00

Conservative Design Floor Response Spectra 2.000 Y

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LOG l

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0.100 /

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i i i ii 1.00 LOG Hz 100.00 Capacity.. Demand File Record Capacity H:\\ GIP \\ GIP \\ spectra des Label l Bounding Spectrum Demand 1 H:\\ GIP \\PROJ002Dispectra. des PLANTIPotnt Beach lBulLDINGIControl Building l ELEVATION l44l DIRECTION l Horizontal Demand 2 H:\\ GIP \\PROJ002D\\ spectra des PLANT l Point BeschlBulLDINGIControl Building!ELEVATIONj44l DIRECTION l Horizontal Does capacity exceed demand?

YJlUi 9

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Wi cen:in Electric Pcw r Ccmpany - Pcint Brach Nucl:ar Plant GIP Rav 2, Correct:d,2/14/92 j

SCREENING EVALUATION WORK SHEET (SEWS)

Status: Yes Sheet 2 of 4 ID : 1Y 01 ( Rev. 0 )

l Class : 14. Distnbution Panels l

Description : RED 120V VITAL INSTRUMENT PANEL i

Building : CB l Floor El. : 44.0000 l Room, Row / Col: AREA 3 j

Manufacturer Model, Etc.

CAVEATS BOUNDING SPECTRUM i

~

DP/BS Caveat I-Earthquake Experience Equipment Class.

Yes DP/BS Caveat 2 - Contains only Circuit Breakers and Switches.

Yes DP/BS Caveat 3 - Doors Secured.

Yes l

DP/BS Caveat 4 - Adjacent Cabinets Boned Together.

N/A j

DP/BS Caveat 5 - General Configuration Similar to NEMA Standards.

Yes DP/BS Caveat 6 - Adequate Anchorage.

Yes DP/BS Caveat 7 - Potential Chatter of Essential Relays Evaluated.

N/A 1

l DP/BS Caveat 8 - No Other Concems.

Yes i

is the intent of all the caveats met for Bounding Spectrum?

Ygg.

i l

1 ANCHORAGE i

1. The sizes and locations of anchors have been determined.

Yes 2

l

2. Appropriate equipment characteristics have been determined (mass, CG, natural freq.,

Yes i

damping, center of rotation).

l

3. The type of anchorage is covered by the GIP.

Yes i

4. The adequacy of the anchorage installation has been evaluated (weld quality and length, Yes nuts and washers, expansion anchor tightness, etc4.-- -

5. Factors affecting anchorage capacity or margin of safety have been considered: embedment Yes 3

j length, aru: hor spacing, free-edge distance, concrete strength / condition, and concrete cracking.

i

6. For bolted anchorages, any gaps under the base are less tnan 1/4.

Yes

7. Factors affecting essential relays have been considered: gaps under the base, capacity N/A reduction for expansion anchors.

i

8. The base has adequate stiffness and the effect of prying action on anchors has been Yes

. considered.

9. The strength of the equipment base and the load path to the CG is~ adequate.

Yes i

10. The adequacy of embedded steel, grout pads or large concrete pads have been evaluated.

N/A

11. The anchorage capacity exceeds the demand.

Yes*

Are anchorage requirements met?

Y11 i

j INTERACTION EFFECTS

?.

1. Soft targets are free from impact by nearby equipment or structures.

Yes*

4

2. If the equipment contains sensitive relays, it is free from all impact by nearby equipment or N/A j

structures.

j

3. Attached lines have adequate flexibility.

Yes i

4. Overhead equipment or distribution systems are not likely to collapse.

Yes j

5. No other adverse concems were found.

Yes is equipment free of interaction effects?

Ygg 4

d

Wl:ctnain Electric P wcr C mpany - Point B:ach Nuct:ar Plant GIP R;v 2, Correct;d,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: Yes Sheet 3 of 4 C

10 : 1Y-01 ( Rev. 0 )

l Class : 14. Distnbution Panels

(.

Desenption : RED 120V VITAL INSTRUMENT PANEL Building : CB l Floor El. : 44.0000 l Room. Row / Col: AREA 3 Manufacturer. Model. Etc.

IS EQUIPMENT SEISMICALLY ADEQUATE?

yg COMMENTS The SRTs are T. C. Muehlfeld and W. Djordjevic - 10/26/93.

Capacity vs Demand:

The seismic demand exceeds the capacity at a low frequency, but itis acceptable because the demand is enveloped at and above the estimated frequency.

Anchorago:

This ;s a wall mounted distribution (breaker) panel with dimension 20'W x 32"H x 5"O and an estimated weight of <

50#. The panel is mounted thru stucco to a masonry block wall. The panel was tug tested and judged to be OK by inspection. Hence, no anchorage evaluation is necessary.

Interaction:

a The panel's HCLPF will ultimately be govemed by block wall the unit is mounted on; however, tNs is an t80-1 block wall (i.e. #111-4S/23).

D Evaluated by:

Date:

h ** $f I

n NWll W2xAr

Attachment:

Pictures e

O

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

l i

j Wisconsin Elsctric Powar Comptny - Point Batch Nuctsar Plant GIP Rev 2 Corrected,2/14/92 l

SCREENING EVALUATION WORK SHEET (SEWS)

Status: Yes j

Sheet 4 of 4 10 : 1Y-01 ( Rev. 0 )

l Class : 14. Distnbution Panels l

Description : RED 120V VITAL INSTRUMENT PANEL l

Building : CB l Floor El. : 44.0000 l Room. Row / Col: AREA 3 l

Manufacturer, Model. Etc.

i

}

PICTURES 1

l 4

f 120VAC Circuit Breaker Panel (Typical)

I lO um O

Wiscin;in Electric Prwer C:mpany - P: int Ccach Nulle r PI:nt GIP R::;v 2, Corrected,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: Yes Sheet 1 of 4 fs ID : 1Y-02 ( Rev. 0 )

l Class : 14. Distnbution Panels

(

Description : BLUE 120V VITAL INSTRUMENT PANEL Building : CB l Floor El. : 44.0000 l Room. Row' Col: AREA 3 4

Manufacturer, Model, Etc.

SEISMIC CAPACITY VS DEMAND 1.

Elevation where_ equipment receives seismic input 44.00 2.

Elevation of seisrr ic input below about 40' from grade (grade = 8.00)

N/A 3.

Equipment has fur damental frequency above about 8 Hz (est. frequency = 11.00)

N/A 4.

Capacity based cn:

1.50

Bounding Spectrum 5.

Demand based ore 1.00

Conservative Design Floor Response Spectra 2.000 V:

l g

j J

LOG

,I i

O O

l 0.100 /

il i

i i

i i i i i

i i

i i i ii 1.00 LOG Hz 100.00 Capacity... Demand File Record Capacity H.\\ GIP \\ GIP \\ spectra. des Label l Bounding spectrum Demand 1 H:\\ GIP \\PROJ0020\\ spectra. des PLANT l Point Beach l BUILDING l Control Building l ELEVATION l44lOIRECTIONIHorizontal Demand 2 H:\\ GIP \\PROJ002D\\ spectra. des Pl. ANT l Point Beacnl BUILDING l Control Building lELEVATIONI44l DIRECTION] Horizontal Does capacity exceed demand?

YP.Ji

m_._

-._.m_..

I l

Wi:can?in Electric Pcwcr Camp:ny Pcint Beach Nuclear Plant GIP Rev 2, Correct d,2/14/92 l

SCREENING EVALUATION WORK SHEET (SEWS)

Status: Yes Sheet 2 of 4 l

lD : 1Y-02 ( Rev. 0 )

l Class : 14. Distnbution Panels i

Description : BLUE 120V VITAL INSTRUMENT PANEL Building : CB l Floor El. : 44.0000 l Room. Row / Col : AREA 3 Manufacturer, Model. Etc.

l CAVEATS - BOUNDING SPECTRUM DP/BS Caveat 1 - Earthquake Experience Equipment Class.

Yes DP/BS Caveat 2 - Contains only Circuit Breakers and Switches.

Yes l

DP/BS Caveat 3 - Doors Secured.

Yes DP/BS Caveat 4 - Adjacent Cabinets Bolted Together.

N/A DP/BS Caveat 5 - General Configuration Similar to NEMA Standards.

Yes j

DP/BS Caveat 6 - Adequate Anchorage.

Yes j

DP/BS Caveat 7 - Potential Chatter of Essential Relays Evaluated.

N/A i

DP/BS Caveat 8 - No Other Concems.

Yes 1

{

Is the intent of all the caveats met for Bounding Spectrum?

Yan I

ANCHORAGE

1. The sizes and locations of anchors have been determined.

Yes i

2. Appropriate equipment characteristics have been determined (mass, CG, natural freq.,

Yes j

damping, center of rotation).

3. The type of anchorage is covered by the GIP.

Yes 1

4. The adequacy of the anchorage installation has been evaluated (weld quality and length, Yes nuts and washers, expansion anchor tightness, etc.)

5. Factors affecting anchorage capacity or margin of safety have been considered: embedment Yes length, anchor spacing, free-edge distance, concrete strength / condition, and concrete cracking.

6. For bolted anchorages. any gaps under the base are less than 1/4.

Yes

7. Factors affecting essential relays have been considered: gaps under the base, capacity N/A reduction for expansion anchors.

8. The base has adequate stiffness and the effect of prying action on anchors has been Yes

. considered.

9. The strength of the equipment base and the load path to the CG is adequate.

Yes

10. The adequacy of embedded steel, grout pads or large concrete pads have been evaluated.

N/A

11. The anchorage capacity exceeds the demand.

Yes*

Are anchorage requirements met?

Y11 INTERACTION EFFECTS

1. Soft targets are free from impact by nearby equipment or structures.

Yes*

2. If the equipment contains sensitive relays, it is free from all impact by nearby equipment or N/A structures.

3. Attached lines have adequate flexibility.

Yes

4. Overhead equipment or distnbution systems are not likely to collapse.

Yes

5. No other adverse concems were found.

Yes Is equipment free of interaction effects?

Yes

_.-m, 4

Wisc:nsin Electris Mcw:r Camp;ny - Pcint Brach Nucl:ar Pl:nt GIP Rsv 2, Corrtettd,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: Yes Sheet 3 of 4 l c ID : 1Y-02 ( Rev. 0 )

l Class : 14. Distnbution Panels Description : BLUE 120V VITAL INSTRUMENT PANEL Building : CB l Floor El. : 44.0000 l Room. Row / Col: AREA 3 Manufacturer, Model, Etc. :

1 i

IS EQUIPMENT SEISMICALLY ADEQUATE 7 y_ag COMMENTS The SRTs are T. C. Muehlfeld and W. Djordjevic - 10/26/93.

Capacity vs Demand:

The seismic demand exceeds the capacity at a low frequency, but it is acceptable because the demand is enveloped at and above the estima?ed frequency.

Anchorage:

This ls a wall mounted distribution (breaker) panel with dimension 20"W x 32"H x 5"D and an estimated weight of <

50#. The panelis mounted thru stucco to a masonry block wall. The panel was tug tested and judged to be OK by inspection. Hence, no anchorage evaluation is necessary.

t interaction:

The panel's HCLPF will ultimately be gove~

' 5y block wall the unit is mounted on; however, this is an E80-1 block wall (i.e. #111-4S/23).

(h Date:

Evaluated by:

j b

ff

/

C/4&c 7

Attachment:

Pictures e

O

}

l 4

Wisconsin Eltetric Powar Comprny - Point Bsach Nuctsar Plant GIP Rev 2, Corrected,2/14/92 1

SCREENING EVALUATION WORK SHEET (SEWS)

Status: Yes i

Sheet 4 of 4 ID : 1Y-02 ( Rev. 0 )

l Class : 14. Distnbution Panels l

Desenption : BLUE 120V VITAL INSTRUMENT PANEL j

Building : CB l Floor El. : 44.0000 l Room, Row / Col: AREA 3 i

Manufacturer, Model, Etc.

i j

PICTURES w

3

)

i i

i I

l 120VAC Circuit Breaker Panel (Typical) 1 i

l l

1 i

)

l l

l i

i 4

i i

i j

0

Wizen in Electric Power Comp:ny - P: Int Orch Nurlear Pl;nt GIP RLv 2, Corr:cted,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: Yes Sheet 1 of 4 ID : 1Y.03 ( Rev. 0 )

l Class : 14. Distnbution Panels Description : WHITE 120V VITAL INSTRUMENT PANEL Building : CB l Floor El. : 44.0000 l Room. Row / Col: AREA 3 Manufacturer, Model. Etc.

SEISMIC CAPACITY VS DEMAND i

1.

Elevation where equipment receives seismic input 44.00 2.

Elevation of seismic input below about 40' from grade (grade = 8.00)

N/A 3.

Equipment has fundamental frequency above about 8 Hz (est. frequency = 11.00)

N/A 4.

Capacity based on:

1.50

Bounding Spectrum 5.

Demand based on:

1.00

Conservative Design Floor Response Spectra 2.000 i

k l

g

~

l g

l

'. " ~ ~ * '...,

g g

/

l LOG l

f v

i l

0.100 i

i i

i i i i i i

i iJ i i ii 1.00 LOG Hz 100.00 Capacity

. Demand File Record Capacrty H:\\ GIP \\ GIP \\ spectra des LabellBounding Spectrum i

~ Demand 1 H.\\ GIP \\PROJ002D\\ spectra. des PLANTIPoint Beach lBUILDINGIControl BuildinglELEVATIONl44l DIRECTION] Horizontal Demand 2 H.\\ GIP \\PROJ002D\\ spectra. des PLANTiPoint Beach lBulLDINGIControl Building l ELEVATION}44l DIRECTION 1 Horizontal 3

Does capacity exceed demand?

Y?ti l

e 1

6

4 i

Wi:cen:in Electric Pcw:r C:mp ny - Paint B2tch Nuciatr Pl nt GIP Rav 2, Corrsettd, 2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: Yes Sheet 2 of 4 ID : 1Y-03 ( Rev. 0 )

l Class : 14. Distnbution Panels Desenption : WHITE 120V VITAL INSTRUMENT PANEL Building : CB l Floor El. : 44.0000 l Room, Row / Col: AREA 3 Manufacturer, Model. Etc.

CAVEATS - BOUNDING SPECTRUM DP/BS Caveat I-Earthquake Exponence Equipment Class.

Yes DP/BS Caveat 2 - Contains only Circuit Breakers and Switches.

Yes DP/BS Caveat 3 - Doors Secured.

Yes DP/BS Caveat 4 - Adjacent Cabinets Bolted Together.

N/A DP/BS Caveat 5 - General Configuration Similar to NEMA Standards.

Yes DP/BS Caveat 6 - Adequate Anchorage.

Yes DP/BS Caveat 7 - Potential Chatter of Essential Relays Evaluated.

N/A DP/BS Caveat 8 - No Other Concems.

Yes is the intent of all the caveats met for Bounding Spectrum?

Ysa ANCHORAGE

1. The sizes and locations of anchors have been determined.

Yes !

2. Appropriate equipmer.1 characteristics have been determined (mass, CG, natural freq.,

Yes 4 damping, center of rotation).

3. The type of anchorage is covered by the GIP.

Yes O

4. The adequacy of the anchorage installation has been evaluated (weld quakty and length, Yes nuts and washers, expansion anchor tightness, etc.)

5. Factors affecting anchorage capacity or margin of safety have been considered: embedment Yes length, anchor spacing, free-edge distance, concrete strength / condition, and concrete cracking.

6. For bolted anchorages, any gaps under the base are less than 1/4.

Yes

7. Factors affecting essential relays have been considered: gaps under the base, capacity N/A reducbon for expansion anchors.

8. The base has adequate stiffness and the effect of prying action on anchors has been Yes

, considered.

9. The strength of the equipment base and the load path to the CG is adequate.

Yes

10. The adequacy of embedded steel, grout pads or large concrete pads have been evaluated.

N/A

11. The anchorage capacity exceeds the demand; Yes*

Are anchoroge requirements met?

Yaa INTERACTION EFFECTS

1. Soft targets are free from impact by nearby equipment or structures.

Yes*

2. If the equipment contains sensitive relays, it is free from all impact by nearby equipment or N/A structures.

3. Attached lines have adequate flexibility.

Yes

4. Overhead equipment or distnbution systems are not likely to collapse.

Yes

5. No other adverse concems were found.

Yes is equipment free of interaction effects?

Yft1

Wi;ctn:In Electric Paw:r C:mpany - Print L:ach Nucl:cr Pl:nt GIP Rsv 2, Corrected,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: Yes Sheet 3 of 4 ID : 1Y-03 ( Rev. 0 )

l Class : 14. Distnbution Panels O

Description : WHITE 120V VITAL INSTRUMENT PANEL Building : CB l Floor El. : 44.0000 l Room. Row / Col: AREA 3 Manufacturer, Model Etc.

IS EQUIPMENT SEISMICALLY ADEQUATE 7 y_ta COMMENTS The SRTs ars T. C. Muehlfeld ;and W. Djordjevic - 10/26/93.

Capacity vs Demand:

The seismic demand exceeds the capacity at a low frequency, but it is acceptable because the demand is 1

enveloped at and above the estimated frequency.

Anchorage:

This is a wall mounted distribution (breaker) panel with, dimension 20"W x 32"H x 5"D and an estimated weight of <

l 50#. The panel is mounted thru stucco to a masonry block wall. The panel was tug tested and judged to be OK by inspection. Hence, no anchorage evaluation is necessary.

t Interaction:

The paners HCLPF will ultimately be govemed by block wall the unit is mounted on; however, this is an E80-1' block wall (i.e. #111-4S/23).

O Evaluated by:

Date:

il p

b 14

/m wnAc

Attachment:

Pictures

~~

e

Wisconsin Elsctric Powsr Company - Point Beach Nucitar Plant GIP Rev 2, Corrected,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: Yes Sheet 4 of 4 10 : 1Y-03 ( Rev. 0 )

l Class : 14. Distnbution Panels i

Desenption : WHITE 120V VITAL INSTRUMENT PANEL Building : CB l Floor El. : 44.0000 l Room Row / Col: AREA 3 l

Manufacturer, Model. Etc.

I r

PICTURES i

I Y

l i

l 120VAC Circuit Breaker Panel (Typical) t i

~

O c

I t

O

Wiscinnin Electric P wnr Crmpiny - Paint Be:ch Nuclxr PI:nt GIP RLv 2, Corrtet^;d,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: Yes Sheet 1 of 4 f3 ID : 1Y-04 ( Rev. 0 )

l Class : 14. Distnbution Panels

,j Description : YELLOW 120V VITAL INSTRUMENT PANEL j

t Building : CB l Floor El. : 44.0000 l Room, Row / Col: AREA 3 Manufacturer, Model, Etc.

SEISMIC CAPACITY VS DEMAND 1.

Elevation where equipment receives seismic input 44.00 2.

Elevation of seismic input below about 40' from grade (grade = 8.00)

N/A 3.

Equipment has fundamental frequency above about 8 Hz (est. frequency = 11.00)

N/A i

4.

Capacity based on:

1.50

Bounding Spectrum 5.

Demand based on:

1.00

Conservative Design Floor Response Spectra 2.000

[:

~

I s

/

\\.

t G

l l

~

LOG j

(~~

l

\\

/

L l

0.100 I i

i i

i i i'i t i

i i

r i e i

1.00 LOG Hz 100.00 Capacity

. Demand File Record Capacrty H:\\ GIP \\ GIP \\ spectra des Label l Bounding Spectrum Demand 1 H.\\ GIP \\PROJ002D\\ spectra des PLANT l Point BeachlBulLDINGIControl BuildinglELEVATION144lDIRECTIONIHorizontal Demand 2 H;\\ GIP \\PROJ002D\\ spectra. des PLANTIPoint BeschlBulLDINGl Control Building l ELEVATION 144l DIRECT 10NjHorizontal Does capacity exceed demand?

Yes U

Wl:ctnsin El ctric Pcw r Camp;ny - Paint B:ach Nucirr Plant GIP Rsv 2, Corrtct d,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: Yes Sheet 2 of 4 ID : 1Y-04 ( Rev. 0 )

l Class : 14. Distnbution Panels b

Description : YELLOW 120V VITAL INSTRUMENT PANEL Building : CB l Floor El. : 44.0000 l Room, Row / Col: AREA 3 Manufacturer, Model, Etc.

CAVEATS - BOUNDING SPECTRUM OP/BS Caveat I-Earthquake Expenence Equipment Class.

Yes DP/BS Caveat 2 - Contains only Circuit Breakers and Switches.

Yes DP/BS Caveat 3 - Doors Secured.

Yes DP/BS Caveat 4 - Adjacent Cabinets Bolted Together.

N/A DP/BS Caveat 5 - General Configuration Similar to NEMA Standards.

Yes DP/BS Caveat 6 - Adequate Anchorage.

Yes

_DP/BS Caveat 7 - Potential Chatter of Essential Relays Evaluated.

N/A DP/BS Caveat 8 - No Other Concems.

Yes is the intent of all the caveats met for Bounding Spectrum?

'(.es ANCHORAGE

1. The sizes and locations of anchors have been determined.

Yes f

2. Appropriate equipment characteristics have been determined (mass, CG, natural freq.,

Yes damping, center of rotation).

3. The type of anchorage is covered by the GIP.

Yes

)

Q

4. The adequacy of the anchorage installation has been evaluated (weld quality and length, Yes V

nuts and washers, expansion anchor tightness, etc.)

5. Factors affecting anchorage capacity or margin of safety have been considered: embedment Yes length, anchor spacing, free-edge distance, concrete strength / condition, and concrete cracking.

6. For bolted anchorages, any gaps under the base are less than 1/4.

Yes 7 Ft,ctors affecting essential relays have been considered: gaps under the base, capacity N/A reduction for expansion anchors.

8. The base has adequate stiffness and the effect of prying action on anchors has been Yes

, considered.

9. The strength of the equipment base and the load path to the CG is adequate.

Yes

10. The adequacy of embedded steel, grout pads or large concrete pads have been evaluated.

N/A

11. The anchorage capacity exceeds the demand.

Yes*

Are anchorage requirements met?

Y.e3 INTERACTION EFFECTS

1. Soft targets are free from impact by nearby equipment or structures.

Yes*

2. If the equipment contains sensitive relays, it is free from allimpact by nearby equipment or N/A structures.

3. Attached lines have adequate flexibility.

Yes

4. Overhead equipment or distnbution systems are not likely to collapse.

Yes s

5. No other adverse concems were found.

Yes is equipment free of interaction effects?

Yfui v

Wisc::n:in Electric P4w:r Campany - Paint Brach Nu;l:ar Pla'nt GIP Ray 2, Correctr,d,2/14/92

. SCREENING EVALUATION WORK SHEET (SEWS)

Status: Yes Sheet 3 of 4 10 : 1Y-04 ( Rev. 0 )

l Class : 14. Distnbution Panels Desenption : YELLOW 120V VITAL INSTRUMENT PANEL Building : CB l Floor El. : 44.0000 l Room, Row / Col: AREA 3 Manufacturer, Model Etc.

IS EQUIPMENT SElSMICALLY ADEQUATE 7 yng

\\

COMMENTS i

The SRTs are T. C. Muehlfeld and W. Djordjevic - 10/26/93.

Capacity vs Demand:

The seismic demand exceeds the capacity at a low frequency, but it is acceptable because the demand is enveloped at and above the estimated frequency.

Anchorage:

This is a wall mounted distnbution (breaker) panel with dimension 20"W x 32"H x 5"D and an estimated weight of <

50#. The panelis mounted thru stucco to a masonry block wall. The panel was tug tested and judged to be OK by inspection. Hence, no anchorage evaluation is necessary.

.t Interaction:

The paners HCLPF will ultimately be govemed by block wall the unit is mounted on; however, this is an E80-1' block wall (i.e. #111-4S/23).

Evaluated by:

Date:

/

}"

v n

i

Attachment:

Pictures

l Wizconsin Eltetric Powsr Company - Point Bsach Nucl:ar Plant GIP Rev 2, Corrected,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: Yes Sheet 4 of 4 ID : 1Y-04 ( Rev. 0 )

l Class : 14. Distnbution Panels l

Description : YELLOW 120V VITAL INSTRUMENT PANEL Building : CB l Floor El. : 44.0000 l Room, Row / Col: AREA 3 Manufacturer. Model, Etc.

PICTURES i

l l

120VAC Circuit Breaker Panel (Typical)

I t

i

!O i

O

NIMS FILE I

~E P GE6 OI Stevenson & Associates 10 State Street Fax: 617-933-4428 Suite 4 Phone: 617-932-9580 Woburn, MA 01801-6820 U.S.A.

To:

WEPCO/ Point Beach Nuclear Plant Date:

March 2,1995 Attn: Scott Hoggatt From:

Frank Stille Fax No.: (414) 221 - 2010 Pages Following: 4 91C2696-LSC-069

Subject:

Point Beach IEB 80 - 11 Block Wall HCLPF and Median-Centered Fragility Calculations j

Dear Scott,

Attached, for your review, is an updated spread sheet (in four parts) showing S&A's HCLPF and Median

- Centered Fragility calculations for the IEB 80 - 11 block walls as specified by WEPCO. This transmittal supersedes the spread sheet transmitted as part of S&A Doc. 91C2696-LSC-068. The calculations are based on scaling the existing Point Beach IEB 80 - 11 block wall design basis calculations to the Lawrence Livermore Laboratory seismic demand spectra anchored to a PGA = 0.4g.

Note that HCLPF's of less than 0.3g PGA were calculated for block wall ID 116/23.

If you have any questions please contact me.

Sincerely, Frank Stille Attachment O

AUG 61996

WEPCO Beach IEB 80-11 Bk, ell HCLPPs Building and Max Modal Desgn Basis Elevation WallID Run No.

Basis Part. Factor Period Period 1 Period 2 Acc.1 Acc.2 Demand, g's Aux. Central 39-1/2 P021 FG2 5.30 0.089 0.086 0.097 0.259 0.336 0.280 26 P022 FU2 3.89 0.086 0.080 0.086 0.202 0.259 0.259 Run" FG2 0.089 0.280 Run ****'*)

FG2 0.280 Aux. Central 40-1/2 P031 FG2 5.20 0.088 0.086 0.097 0.259 0.336 0.273 26 P032 FU2 3.89 0.086 0.080 0.086 0.202 0.259 0.259 Run#

0088 0.273 Run ****2*)

0.088 0.273 Aux. Central 5-5/2A P045 FG4 2.59 0.028 0.017 0.037 0.175 0.174 0.174 8

PO46 FU4 1.89 0.027 0.017 0.037 0.175 0.174 0.175 (Fixed Run)

PO49 FU4 1.56 0.010 0.017 0.017 0.175 0.175 0.175 Aux. Central 5-29/2A P051 FG2 2.58 0.028 0.021 0.035 0.176 0.174 0.175 8

P052 FU2 1.89 0.027 0.021 0.035 0.176 0.174 0.175-Aux. Central 157-S/4 P091 FG2 2.19 0.056 0.054 0.078 0.179 0.177 0.179 8

P092 FU2 1.60 0.055 0.054 0.079 0.179 0.177 0.179 Aux. Central 157-N/4.

P101 FG2 2.28 0.042 0.035 0.054-0.174 0.179 0.176 8

P102 FU2 1.67 0.041 0.035 0.054 0.174 0.179 0.176 Control Room 19/9 P113 PU4 3.92 0.070 0.052 0.072 0.260 0.259 0.259 26 P114 PP4 4.34 0.070 0.052 0.072 0.260 0.259 0.259 Fixed Run P117 FP4 2.97 0.038 0.038 0.038 0.254 0.254 0.254 Fixed Run' O.038 0.254 Fixed Run**** *)

0.038 0.254 l

Control Room 20/9 P121 PU2 3.88 0.056 0.035 0.066 0.254 0.261 0.259 26 P122 PP2 4.29 0.057 0.035 0.066 0.251 0.261 0.259 Run' O.057 0.259 Run ****2*)

0.057 0.259 Page 1 of 4

WEPCO Beach IEB 80-11 Bw.. wall HCLPF's Building and Max Modal Design Basis Elevation WallID Run No.

Basis Part. Factor Period Period 1 Period 2 Acc.1 Acc.2 Demand, g's Control Room 111-1/23 P245 FU4 2.74 0.079 0.052 0.099 0.264 0.268 0.266 44 (1st Mode)

P246 FP4 2.93 0.078 0.052 0.099 0.264 0.268 0.266 (2nd Mode)

P245 FU4 2.00 0.049 0.025 0.052 0.257 0.264 0.263 P246 FP4 2.14 0.048 0.025 0.052 0.257 0.264 0.263 60*

Fixed Runs P247 PPU4 3.28 0.056 0.027 0.060 0.330 0.327 0.327 P248 PPP4 3.51 0.055 0.027 0.060 0.330 0.327 0.327 Fixed Run" PPP4 0.055 0.327 Fixed Run****

PPP4 0.055 0.327 Control Room 116/23 P0301 PU4 2.89 0.060 0.060 0.060 0.327 0.327 0.327 60 P0302 PP4 3.09 0.059 0.027 0.060 0.330 0.327 0.327 P0303 FU4 3.13 0.070 0.052 0.099 0.264 0.268 0.266 P0304 FP4 3.34 0.069 0.052 0.099 0.264 0.268 0.265-Run" FU4 0.070 0.266 Run**"

FU4 0.070 0.266 Control Room 111-2/23 P253 FU4 3.44 0.075 0.052 0.099 0.264 0.268 0.266 P254 FP4 3.66 0.073 0.052 0.099 0.264 0.268 0.266 Control Room 111-3S/23 P268 FU4 2.41 0.030 0.025 0.052 0.257 0.264 0.258 P269 FP4 2.58 0.030 0.025 0.052 0.257 0.264 0.258 Control Room 111-4S/23 P278 FU4 3.01 0.044 0.025 0.052 0.257 0.264 0.262 P279 FP4 3.2 0.043 0.025 0.052 0.257 0.264 0.262 Page 2 of 4

WEPCO lt Beach IEB 80-11 Bluwai' HCLPF's HGLl't-5% LLI.

7% LLL Design Chosen Median

-LLL Building and Period 1 Period 2 Acc.1 Acc.2 Demand,

Demand, Basis for Centered Demand Basis for Elevation WallID (LL)

(LL)

'(LL)

(LL) g's g's M,cr/Mm. HCLPF Analysis Fragility Direction Selecten Aux. Central 39-1/2 0.087 0.091 0.402 0.441 0.422 0.356 0.812 0.387 NS 26 0.083 0.087 0.350 0.402 0.389 0.329 0.814 0.387 NS Run' O.087 0.091 0.337 0.375 0.356 0.301 0.812 0.458 NS Run****)

0.087 0.389 0.329 0.812 0.420 0.420 0.882 NS Note (1)

Aux. Central 40-1/2 0.087 0.091 0.402 0.441 0.412 0.348 0.813 0.386 NS 26 0.083 0.087 0.350 0.402 0.389 0.329 0.815 0.387 NS Run' O.087 0.091 0.337 0.375 0.347 0.293 0.813 0.459 NS Run** * )

0.087 0.379 0.320 0.813 0.479 0.419 0.880 NS Note (1)

Aux. Central 5-5/2A 0.275 0.233 0.812 0.369 EW 8

0.275 0.232 1.38 0.218 EW (Fixed Run) 0.275 0.232 0.896 0.336 0.356 0.748 EW Note (2)

Aux. Central 5-29/2A 0.275 0.232 0.234 1.287 EW 8

0.275 0.232 0.235 1.283 1.283 2.694 EW' Note (1)

Aux. Central 157-S/4 0.293 0.248 0.129 2.239 EW 8

0.290 0.245 0.185 1.578 1.578 3.314 EW Note (1)

Aux. Central 157-N/4 0.040 0.045 0.313 0.281 0.300 0.254 0.245 1.132 EW 8

0.040 0.045 0.313 0.281 0.307 0.259 0.261 1.038 1.038 2.180 EW Note (1)

Control Room 19/9 0.069 0.071 0.447 0.498 0.473 0.399 0.906 0.286 NS 26 0.069 0.071 0.447 0.498 0.473 0.399 1.100 0.236 NS Fixed Run 0.036 0.040 0.702 0.703 0.703 0.594 0.75 0.228 NS 2e Fixed Run" 0.036 0.040 0.391 0.479 0.435 0.368 0.75 0.368 NS Fixed Run***)

0.036 0.040 0.547 0.591 0.569 0.481 0.75 0.282 0.282 0.592 NS Note (2)

Control Room 20/9 0.733 0.619 0.605 0.276 EW 26 0.056 0.059 0.733 0.643 0.703

-0.594 0.740 0.236 EW Run' O.056 0.059 0.633 0.590 0.619 0.523 0.740 0.268 EW Run****)

0.056 0.059 0.683 0.617 0.661 0.559 0.740 0.251 0.251 0.527 EW Note (1) l

{

(1) Worst case cond. for LLL FRS (2) Only case available for Fixed Condition l

I Note: HCLPPs printed in italics are based on an average of the ceiling and floor FRS. All others are floor cantilevered.

j Page 3 of 4 I

=

WEPCO Beach IEB 80-11 Biw. wall HCLPPs HCLPF I

5% LLL 7% LLL Design Chosen MMian LLL Building and Period 1 Period 2 Acc.1 Acc.2 Demand,

Demand, Basis for Centered Demand Basis for Elevation WalllD (LL)

(LL)

(LL) g's g's MedM m HCLPF Analysis Fragility Direction Selechon j

Control Room 111-1/23 0.077 0.080 0.810 0.767 0.781 0.660 1.890 0.085 NS 44 (1st Mode) 0.077 0.080 0.810 0.767 0.796 0.672 2.160 0.073 NS I

(2nd Mode) 0.045 0.050 0.381 0.415 0.408 0.345 1.890 0.161 NS i

0.045 0.050 0.381 0.415 0.401 0.339 2.160 0.144 NS l

60*

Fixed Runs 0.702 0.593 0.662 0.333 NS 0.702 0.593 0.762 0.290 NS Fixed Run"'

O.448 0.379 0.762 0.453 NS I

Fixed Run***'*

0.575 0.486 0.762 0.353 0.353 0.742 NS Note (3)

Control Room 116/23 0.059 0.0625 0.773 0.93 0.818 0.691 1.083 0.175 NS 60 0.773 0.653 1.228 0.163 NS 0.069 0.071 0.960 1.146 1.053 0.890 0.964 0.124 NS I

0.960 0.811 0.983 0.133 NS-Fixed Run"'

O.069 0.071 0.671 0.810 0.741 0.626 0.964 0.176 NS Fixed Run**"**

0.850 0.719 0.964 0.154 0.154 0.323 NS Note (1)

Control Room 111-2/23 0.071 0.074 0.C M 0.618 0.633 0.540 0.878 0.224 EW I

60 0.071 0.074 0.554 0.618 0.597 0.504 1.006 0.210 0.210 0.441 EW Note (1)

Control Room 111-3S/23 0.029 0.032 0.527 0.687 0.580 0.490 0.306 0.688 EW O.029 0.032 0.527 0.687 0.580 0.490 0.348 0.605 0.605 1.271 EW Note (1)

Control Room 111-4S/23 0.040 0.045 0.724 0.573 0.603 0.510 0.503 0.409 EW 0.040 0.045 0.724 0.573 0.633 0.535 0.578 0.338 0.338 0.710 EW Note (1)

(1) Worst case cond. for LLL FRS l

(3) Worst case for LLL FRS and Fixed Condition.

i 1

I I

Note:HCLPFs printed in italics are based on an average of the ceshng and floor FRS. All others are floor cantilevered.

I Page 4 of 4 4

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O I

l 480V Safeguards Load Centers

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i O

Wl:cznzin El:ctric Pcwir Ccmp:ny - Paint B;ach Nucl :tr Pirnt GlP Rsv 2, Correcttd 2/14/92 OUTLIER SEISMIC VERIFICATION SHEET (OSVS)

Sheet 1 of 2 ID : 18-03 (Rev. 0) l Class : 2. Low Voltage Switchgear Desenption : 480V SAFEGUARDS LOAD CENTER Building : CB l Floor El. : 26.0000 l Room, Row / Col: AREA 3

1. OUTLIER ISSUE DEFINITION - Mechanical and Electrical Eautoment

a. Identify all the screening guidelines which are not met. (Check more than one if several guidelines could not be satisfied.)

Capacity vs. Demand Caveats X

Anchorage X

Seismic Interaction X

Other b.

Describe all the reasons for the outlier (i.e., if all the listed outlier issues were resolved, then the signatorios would consider this item of equipment to be verified for seismic adequacy).

1. A transformer which is anchored by friction clips (i.e. is itself an outlier) is attached to the switchgear.

2. There are too many unanchored bays between the anchored bays in the switchgear line-up, hence the load path is an outlier.

3. There is an overhead trolly hoist which is free to wobble, vibrate and travel along the length of the switchgear. There is a possible of impact between the switchgear and the trolly hoist, which may cause essential relays to chatter, hence an outlier.

2. PROPOSED METHOD OF OUTLIER RESOLUTION (Ontionall a.

Defined proposed method (s) for resolving outlier.

1. Provide adequate anchorage for die transformer.

2. Provide additional anchorage for the unanchored switchgear bays. Recommend anchorage at the seam between bays.

3. Design a clamp to prevent travel and vertical wobbling of boist on top of switchgear.

b.

Pro' tide information needed to implement proposed method (s) for resolving outlier (e.g., estimate of fundamental frequency).

j

3. SEISMIC OPERABILITY EVALUATION:

1. The friction clips provide adequate anchorage to withstand the PBNP SSE, because the friction coefficient exceeds the seismic demand acceleration, as demonstrated by calculation N-93-026. The Aux Building seismic demand used in the calculation envelopes the Control Building 26' elevation.

2. There is sufficient capacity in the existing anchorage pattem to carry the load from the existing bays; however, it is the judgement of the SRT that it is good design practice to anchor all bays.

O

3. The unsecured hoist is not a design basis issue.

G/

o

Wisccn:in El:ctric P wcr Ccmp:ny - Pcint B:ach Nucl:ar PI:nt GIP Rev 2, Corrccted 2/14/92 OUTLIER SEISMIC VERIFICATION SHEET (OSVS)

Sheet 2 of 2 ID : 1B-03 (Rev. 0) l Class : 2. Low Voltage Switchgear

[

Desenption : 480V SAFEGUARDS LOAD CENTER

'N Building : CB l Floor El. : 26.0000 l Room. Row / Col: AREA 3

4. CERTIFICATION:

The information on this OSVS is, to the best of our knowledge and belief, correct and accurate, and resolution of I

the outlier issues listed on the previous page will satisfy the requirements for this item of equipment to be verified for seismic adequacy:

Approved by:

Date:

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U

Wi centin Electric Pcw:r Ccmp:ny - Pcint B::ch Nucl:ar PI:nt GIP Rcv 2, Correct:d,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 1 of 5 ID : 18-03 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear p

Q Desenption : 480V SAFEGUARDS LOAD CENTER Building : CB l Floor El. : 26.0000 l Room. Row / Col: AREA 3 i

Manufacturer, Model. Etc.

l SEISMIC CAPACITY VS DEMAND 1.

Elevation where equipment receives seismic input 26.00 2.

Elevation of seismic input below about 40' from grade (grade = 8.00)

N/A 3.

Equipment has fundamental frequency above about 8 Hz (est. frequency = 8.00)

N/A 4.

Capacity based on:

1.50

Bounding Spectrum j

5.

Demand based on:

1.00

Conservative Design Floor Response Spectra 4

2.000 y

l l

G 4

./

LOG i

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0.100 i

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1.00 LOG Hz 100.00 Capacity

. Demand a

File Record Cacacity H:\\ GIP \\GIPispectra des Label! Bounding Spectrum Demand 1 H.\\ GIP \\PROJ002D\\ spectra des PLANT l Point BeschlBulLDINGl Control Building!ELEVATIONI26l DIRECTION] Horizontal Oemand 2 H:\\ GIP \\PROJ002D\\ spectra des PLANTIPoint BeachlBUILDINGl Control Building l ELEVATION!26lDIRECTIONIHorizontal Does capacity exceed demand?

Y.ft1 1

i l

i

Wi:cInsin El:ctric Pow;r C:mpany - Print Bxch Nuct:ar Plant GIP Rav 2, Correct:d,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 2 of 5

]

q ID : 18-03 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear q

j Desenption : 480V SAFEGUARDS LOAD CENTER

]

Building : CB l Floor El. : 26.0000 l Room Row / Col AREA 3 j

Manufacturer. Model. Etc.

q CAVEATS - BOUNDING SPECTRUM LVS/BS Caveat 1 - Earthquake Expenence Equipment Class.

Yes LVS/BS Caveat 2 - Rating of 600 V or Less.

Yes LVS/BS Caveat 3 - Side-to-Side Restraint of Breaker.

Yes*

LVS/BS Caveat 4 - Adjacent Cabinets Bolted Together.

Yes*

LVS/BS Caveat 5 - Attached Weight of 100 Pounds or Less.

Yes LVS/BS Caveat 6 - Extemally Attached items Rigidly Anchored.

No*

LVS/BS Caveat 7 - General Configuration Similar to ANSI C37.20 Standards.

Yes LVS/BS Caveat 8 - Cutouts Not Large.

Yes LVS/BS Caveat 9 - Doors Secured.

Yes LVS/BS Caveat 10 - Adequate Anchorage.

No*

j LVS/BS Caveat 11 - Potential Chatter of Essential Relays Evaluated.

Yes LVS/BS Caveat 12 - No Other Concerns Yes l

)

is the intent of all the caveats met for Bounding Spectrum?

N.o ANCHORAGE rN

1. The sizes and locations of anchors have been determined.

Yes (V)

2. Appropriate equipment charactenstics have been determined (mass, CG, natural freq.,

Yes damping, center of rotation).

3. The type of anchorage is covered by the GlP.

Yes

4. The adequacy of the anchorage installation has been evaluated (weld quality and length, Yes nuts and washers. expansion anchor tightness, etc.)

5. Factors affecting anchorage capacity or margin of safety have been considered: embedment Yes length, anchor spacing, free-edge distance, concrete strength / condition, and concrete cracking.

6. For bolted anchorages, any gaps under the base are less than 1/4.

N/A

7. Factors affecting essential relays have been considered: gaps under the base, capacity N/A reduction for expansion anchors.

l

8. The base has adequate stiffness and the effect of prying action on anchors has been N/A considered.

9. The strength of the equipment base and the load path to the CG is adequate.

No*

10. The adequacy of embedded steel. grout pads or large concrete pads have been evaluated.

Yes I

11. The anchorage capacity exceeds the demand.

No

{

Are anchorage requirements met?

NQ i

Q,/

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4 Wl:censin El:ctric Powir Ccmpany Pcint BIach Nucl:ar Plant GIP Rov 2, Correct:d,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 3 of 5 ID : 18-03 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear s

Desenption : 480V SAFEGUARDS LOAD CENTER Building : CB l Floor El. : 26.0000 l Room. Row / Col: AREA 3 Manufacturer Model. Etc.

INTERACTION EFFECTS

1. Soft targets are free from impact by nearby equipment or structures.

Yes

2. If the equipment contains sensitive relays, it is free from allimpact by nearby equipment or No*

structures.

3. Attached lines have adequate flexibility.

Yes

4. Overhead equipment or distnbution systems are not likely to collapse.

Yes

5. No other adverse concerns were found.

Yes is equipment free of interaction effects?

Ng IS EQUIPMENT SEISMICALLY ADEQUATE 7 Ng COMMENTS The SRTs are S. R. St Amour and W. Djordjevic - 10/25/93.

CAPACITY:

The seismic demand exceeds the capacity at a low frequency, but it is acceptable because the demand is enveloped at and above the estimated frequency.

x BSCav.3: Westinghouse DB-25 breakers meet all caveats. Check stiffness of side rail. There is 1/4" dnft (slop),

check if rails bend less than 1/4", if so its OK because stabs on 1/2" wide.

Assume it is a simple supported beam with span of 24" and half of the Breaker weight,215 lbs, loaded at the center of the beam. Seismic acceleration in horizontal direction = 0.22g.

Moment of inertia of the rail in horizontal direction = 0.1875'1.25^3/12=0.0305 in^4.

Max. displacement of the rail in the horizontal = (P*L^3) / (48*E*l) = (0.22

215

24 ^3) / (48

29E6

0.0305) =

g,,046in < allowable 0.25 in. -> OK.

BSCav.4: All cabinets interconnected with 6 - 3/8" bolts per side. The cabinet sides are of 1/8" sheet metal stock.

BSCav.6: Outlier, the switchgear is attached to a transformer which is an outlier itself due to friction clip M cd anchorage.

AA Mp# g d

ANCHORAGE:

The switchgear consists of 9 bay lin

p. The first two bays ere 18" and 30" wide respectively and the rest are 26" l

wides. The switchgear is 90" tall a 60" deep, except for the first bay which is almost 72" deep.

The switchgear is anchored by 4 -

' fillet welds,3 - 2* long and 11.5"long, evenly spaced along the front. The rear is secured by 44/2" diameter plug welds, one in each of the first two bays, one in a middle bay and one in the last bay. The cabinet bays are welded to a edge which is embedded into a concrete pad. The anchorage load path is an outlier because there are too many unanchored cabinets between the anchored ones.

l ggb SSS W9h5 Interactions:

Outlier, there is a trolly hoist which is to free travel along the length of the switchgear, wobble and vibrate. Hence, design a clamp to prevent travel and vertical wobbling.

q)

Other:

The following items are sub-components of 18-03 :

]

Wiscrnsin Electric P wnr C::mp ny - Pcint B:ach Nuclxr Plant GIP Rav 2, Correctid,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 4 of 5 O

ID : 18-03 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear d

Desenption : 480V SAFEGUARDS LOAD CENTER Building : CB l Floor El. : 26.0000 l Room, Row / Col: AREA 3 Manufacturer, Model Etc.

1852-10A PWR TO 1P-11 A COMPONENT COOLING WATER PUMP 1852-10C PWR TO P-32A SERVICE WATER PUMP 1852-12B PWR TO PP 14 PZR BACKUP HEATER C GROUP PWR PANEL 1852-12C PWR TO P-38A AUX FEEDWATER MOTOR DRIVEN PUMP 1852-13C PWR TO 18-39 TRAIN A BATTERY CHARGER SUPPLY MCC 1852-14A PWR TO iP-14A CONTAINMENT SPRAY PUMP 1852-14B NORMAL PWR TO 18-32 PAB SAFEGUARDS MCC 1852-15A PWR TO 1W-1 A1 CONT ACCIDENT REClRCULATION FAN 1852-158 PWR TO 1W-181 CONT ACCIDENT RECIRCULATION FAN 1852-16B FEED TO 18-03 FROM 1X 13 STATION SERVICE XFMR I

Evaluated by:

Date:

b

- b A=.

G >>s w

W

Attachment:

Pictures O

i 4

4 e

i

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i l

Wisconsin Elsctric Power Company - Point Beach Nuclear Plant GIP Rev ?, Corrected,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No i

Sheet 5 of 5 ID : 18-03 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear O

Desenption : 480V SAFEGUARDS LOAD CENTER Build:ng : CB l Floor El. : 26.0000 l Room, Row / Col: AREA 3 Manufacturer, Model. Etc.

PICTURES j

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d s

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4 4 t 1;,

..w 1

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p f.,

q ge l'

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Fig.1: 18-03 & 18-04 Low Voltage SWGR (typical).

Fig.2: Anchorage Weld to Grout Pad Edge Channel.

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Wiscen in El:ctric P wcr Cemp:ny - Print Brch Nucliar Pl:nt GIP Rsv 2, Correct d 2/14/92 OUTLIER SEISMIC VERIFICATION SHEET (OSVS)

Sheet 1 of 2 ID : 28-03 (Rev. 0) l Class : 2. Low Vcltage Switchgear O

Desenption : 480V SAFEGUARDS LOAD CENTER V

Building : CB l Floor El. : 26.0000 l Room. Row / Col: AREA 3 1

1. OUTLIER ISSUE DEFINITION - Mechanical and Electrical Eauloment a.

Identify all the screening guidelines which are not met. (Check more than one if several guidelines could not be satisfied.)

Capacity vs. Demand Caveats X

Anchorage X

Seismic Interaction X

Other j

b.

Desenbe all the reasons for the outlier (i.e., if all the listed outlier issues were resolved, then the signatories would consider this item of equipment to be verified for seismic adequacy).

i

1. A transformer which is anchored by friction clips (i.e. is itself an outlier) is attached to the switchgear.

l

2. There are too many unanchored bays between the anchored bays in the switchgear line-up, hence the load path is an outlier.

3. There is an overhead trolly hoist which is free to wobble, vibrate and travel along the length of the i

switchgear. There is a possible of impact between the switchgear and the trolly hoist, which may cause essential relays to chatter, hence an outlier.

J l(

2. PROPOSED METHOD OF OUTLIER RESOLUTION footional) a.

Defined proposed method (s) for resciving outlier.

I

1. Provide adequate anchorage for the transformer.

2. Provide additional anchorage for the unanchored switchgear bays. Recommend anchorage of the seam between the bays.

l 3. Design a clamp to prevent travel and vertical wobbling of hoist on top of switchgear.

b.

Provide information needed to implement proposed method (s) for resolving outlier (e.g., estimate of fundamental frequency).

3. SElSMIC OPERABILITY EVALUATION:

1. The friction clips provide adequate anchorage to withstand the PBNP SSE, because the friction coefficient exceeds the seismic demand acceleration, as demonstrated by calculation N-93-026. The Aux Building seismic demand used in the calculation envelopes the Control Building 26' elevation.

2. There is sufficient capacity in the existing anchorage pattdm to carry the load from the existing bays; however, it is the judgement of the SRT that it is good design practice to anchor all bays.

3. The unsecured hoist is not a design basis issue.

Wi:ctnsin El:ctric Pcw;r Ccmp:ny - Psint Brach Nuclear PI:nt GIP Rev 2. Corrected 2/14/92 OUTLIER SEISMIC VERIFICATION SHEET (OSVS)

Sheet 2 of 2 10 : 28-03 (Rev. 0) l Class : 2. Low Voltage Switchgear Desenption : 480V SAFEGU ARDS LOAD CENTER Building : CB l Floor El. : 26.0000 l Room, Row / Col: AREA 3

4. CERTIFICATION:

The information on this OSVS is, to the best of our knowledge and belief, correct and accurate, and resolution of the outlier issues listed on the previous page will satisfy the requirements for this item of equipment to be venfied for seismic adequacy:

Approved by:

Date:

[

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C,/ u As i

V i

1 O

Wisc nsin Electric Prw:r Crmpany - P int Brach Nuct:ar Plant GIP Rev 2, Correct d. 2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 1 of 5

/ -

ID : 28-03 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear C

Descnotion : 480V SAFEGUARDS LOAD CENTER Building : CB l Floor El. : 26.0000 l Room. Row / Col: AREA 3 Manufacturer. Model. Etc.

SEISMIC CAPACITY VS DEMAND 1.

Elevation where equipment receives seismic input 26.00 2.

Elevation of seismic input below about 40' from grade (grade = 8.00)

N/A 3.

Equipment has fundamental frequency above about 8 Hz (est. frequency = 8.00)

N/A i

4.

Capacity based on:

1.50

Bounding Spectrum 5.

Demand based on:

1.00

Conservative Design Floor Response Spectra 2.000 7.......

y l

l

~.

1 l

\\

l

\\

G LOG f

l

" " ~ * *............. '

s) 1 il 0.100 i

i i

i i i i i

i e

i i i ii 1.00 LOG Hz 100.00 Capacity... Demand File Record

~

Capacity H:\\ GIP \\ GIP \\ spectra des LabellBounding Spectrum Demand i H.\\ GIP \\PROJ002D\\ spectra. des PLANT l Point Beach lBulLDINGl Control Building lELEVATIONj26l DIRECTION lHonzontal Demand 2 H.\\ GIP \\PROJ002Dispectra des PLANT lPomt BeschlButLDINGl Control Building l ELEVATION 126lDIRECTIONIHorizontal Does capacity exceed demand?

Yes O

Wi can:in Electri: Pcw:r Ctmp ny - Paint B:cch Nucle:r Plant GIP Rsv 2, Corrteted,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 2 of 5 O-ID : 2B-03 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear Desenption : 480V SAFEGUARDS LOAD CENTER Building : CB l Floor El. : 26.0000 l Room, Row / Col: AREA 3 Manufacturer, Model. Etc.

CAVEATS - BOUNDING SPECTRUM LVS/BS Caveat 1 - Earthquake Expenence Equipment Class.

Yes LVS/BS Caveat 2 - Rating of 600 V or Less.

Yes LVS/BS Caveat 3 - Side-to-Side Restraint of Breaker.

Yes*

LVS/BS Caveat 4 - Adjacent Cabinets Bolted Together.

Yes*

LVS/BS Caveat 5 - Attached Weight of 100 Pounds or Less.

Yes LVS/BS Caveat 6 - Extemally Attached items Rigidly Anchored.

No*

LVS/BS Caveat 7 - General Configuration Similar to ANSI C37.20 Standards.

Yes LVS/BS Caveat 8 - Cutouts Not Large.

Yes LVS/BS Caveat 9 - Doors Secured.

Yes LVS/BS Caveat 10 - Adequate Anchorage.

No*

LVS/BS Caveat 11 - Potential Chatter of Essential Relays Evaluated.

Yes LVS/BS Caveat 12 - No Other Concems Yes Is the intent of all the caveats met for Bounding Spectrum?

HQ ANCHORAGE

1. The sizes and locations of anchors have been determined.

Yes

2. Appropriate equipment characteristics have been determined (mass, CG, natural freq.,

Yes damping, center of rotation).

3. The type of anchorage is covered by the GlP.

Yes

4. The adequacy of the anchorage installation has been evaluated (weld quality and length, Yes nuts and washers, expansion anchor tightness, etc.)

5. Factors affecting anchorage capacity cc margin of safety have been considered: embedmont Yes i

length, anchor spacing, free-edge distance, concrete strength / condition, and concrete cracking.

6. For bolted anchorages, any gaps under the base are less than 1/4.

N/A 7, Factors affecting essential relays have been considered; gaps under the base, capacity N/A reduction for expansion anchors.

8.. The base has adequate stiffness and the effect of prying action on anchors has been N/A

- considered.

9. The strength of the equipment base and the load path to the CG is adequate.

No*

10. The adequacy of embedded steel, grout pads or large concrete pads have been evaluated.

Yes

11. The anchorage capacity exceeds the demand.

No Are anchorage requirements met?

NQ

Wi:censin Electric Ptw r Ccmpany - P Int Bxch Nuct:ar Pl:nt GIP Rsv 2, Corrected,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 3 of 5

(]

10 : 28-03 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear Q

Desenption : 480V SAFEGUARDS LOAD CENTER Building : CB l Floor lit. : 26.0000 l Room, Row / Col: AREA 3 Manufacturer, Model, Etc.

INTERACTION EFFECTS j

1. Soft targets are free from impact by nearby equipment or structures.

Yes I

l

2. If the equipment contains sensitive relays, it is free from all impact by nearby equipment or No*

structures.

3. Attached lines have adequate flexibility.

Yes 1

4. Overhead equipment or distnbution systems are not likely to collapse.

Yes

5. No other adverse concerns were fond.

Yes l

Is equipment free of interaction effects?

N.o IS EQUIPMENT SEISMICALLY ADEQUATE?

Ng COMMENTS The SRTs are S. R. St Amour and W. Djordjevic - 10/25/93.

CAPACITY:

I h

The seismic demand exceeds the capacity at a low frequency, but it is acceptable because the demand is j

V enveloped at and above the estimated frequency.

l I

BSCav.3: Westinghouse DB-25 breakers meet all caveats. Check stiffness of side rail. There is 1/4" drift (slop),

check if rails bend less than 1/4", if so its OK because stabs on 1/2" wide.

% Assume it is a simple supported beam with span of 24" and half of the Breaker weight,215 lbs, loaded at the center of the beam. Seismic acceleration in horizonta! direction = 0.22g.

h Moment of inertia of the rail in horizontal direction = 0.1875*1.25^3/12=0.0305 in^4.

Max. displacement of the rail in the horizontal = (P*L^3) / (48*E*l) = (0.22

215

24 ^3) / (48

29E6

0.0305) =

I 0L 5 0.0361n < allowable 0.25 in. -> OK.

4 I

BSCav.4: All cabinets interconnected with 6 - 3/8" bolts per side. The cabinet sides are of 1/8" sheet metal stock.

BSCav.6: Outlier, the switchgear is attached to a transformer which is an outlier itself due to friction clip anchorage.

ANCHORAGE:

The switchgear consists of 9 bay lineup. The first two bays are 18" and 30" wide respectively and the rest are 26" wides. The switchgear is 90" tali and 60" deep, except for the first bay which is almost 72" deep.

The switchgear is anchored by 4 - 3/8" fillet welds, 3 - 2" long and 1-1.5" long, evenly spaced along the front. The rear is secured by 4<1/2" diameter plug welds, one in each of the first two bays, one in a middle bay and one in the last bay. The cabinet bays are welded to a edgeangle which is embedded into a concrete pad. The anchorage load path is an outlier because there are too man nanchored cabinets between the anchored ones.

CyppQ. M Interactions:

QQM l

Outlier, there is a trolly hoist which is to free travel along the length of'the switchgear, wobble and vibrate. Hence, design a clamp to prevent travel and vertical wobbling.

i O

i V

Other-The following items are sub-components of 28-03 :

1 O

. =...

Wizctn in Electric P:w:r Ccmp ny - Pcint UIach Nucl:cr Plant GIP Rav 2, Corr;;cted. 2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 4 of 5 (G

ID : 28-03 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear

d Desenption: 480V SAFEGUARDS LOAD CENTER Building : CB l Floor EL : 26.0000 l Room. Row / Col: AREA 3 Manufacturer, Model. Etc.

i 2852-34A PWR TO 2P-11 A COMPONENT COOLING WATER PUMP 1

2852-36B PWR TO PP-19 PZR BACKUP HEATER C GROUP PWR PANEL 2852-36C PWR TO 2B-39 TRAIN A BATTERY CHARGER SUPPLY MCC 2B52-38A PWR TO 2P-14A CONTAINMENT SPRAY PUMP 2852 388 NORMAL PWR TO 28-32 PAB SAFEGUARDS MCC 2B52 39A PWR TO 2W-1 A1 CONT ACCIDENT RECIRCULATION FAN 4

2852-39B PWR TO 2W-181 CONT ACCIDENT RECIRCULATION FAN 4

i 2B52-408 FEED TO 28-03 FROM 2X-13 STATION SERVICE XFMR 1

Evaluated by:

Date:

s av v v

Attachment:

Pictures I

O

Wlaconsin Elsctric Powsr Company - Point Beach Nuctsar Plant GIP Rev 2, Corrected,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 5 of 5 j

10 : 28-03 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear l

Desenption : 480V SAFEGUARDS LOAD CENTER l

Building : CB l Floor El. : 26.0000 l Rocm, Row / Col: AREA 3 j

Manufacturer, Model. Etc.

PICTURES M

i no l

I t

c 1

}

.)e w

~~

4 Fig.1: 1B-03 & 18-04 Low Voltage SWGR (typical).

Fig.2: Anchorage Weld to Grout Pad Edge Channel.

i 1

lO l

1 4

i j

l

!, O 4

~. -...

. _.. ~

j Wi:can in El:ctric Pcw;r Camp:ny - Pcint Ccach Nuclxr PI:nt GIP Rav 2, Correct:;d 2/14/92 OUTLIER SEISMIC VERIFICATION SHEET (OSVS)

Sheet 1 of 2 ID : 18-04 (Rev. 0) l Class : 2. Low Voltage Switchgear

.('

Description : 480V SAFEGUARDS LOAD CENTER

!k Building : CB l Floor El. : 26.0000 l Room. Row / Col: AREA 3 1

1. OUTLIER ISSUE DEFINITION Mechanical and Electrical Eauloment a.

Identify all the screening guidelines which are not met. (Check more than one if several guidelines could not be satisfied.)

Capacity vs. Demand Caveats X

Anchorage X

Seismic Interaction X

Other b.

Describe all the reasons for the outlier (i.e., if all the listed outlier issues were resolved, then the signatories would consider this item of equipment to be verified for seismic adequacy).

j E

1. A transformer which is anchored by friction clips (i.e. is itself an outlier) is attached to the switchgear.

2. There are too many unanchored bays between the anchored bays in the switchgear line-up, hence the load path is an outlier.

3. There is an overhead trolly hoist which is free to wobble, vibrate and travel along the length of the i

switchgear. There is a possible of impact between the switchgear and the trolly hoist, which may cause l

essential relays to chatter. hence an outlier.

i h

2. PROFOSED METHOD OF OUTLIER RESOLUTION (Ontionall i NJ a.

Defined proposed method (s) for resolving outlier.

l. Provide adequate anchorage for the transformer.

2. Provide additional anchorage for the unanchored switchgear bays. Recommend anchorage at the seam between the bays.

l

3. Design a clamp to prevent travel and vertical wobbling of the hoist on top of the switchgear.

b.

Provide information needed to implement proposed method (s) for resolving outlier (e.g., estimate of fundamental frequency).

3. SEISMIC OPERABILITY EVALUATION:

1. The friction clips provide adequate anchorage to withstand the PBNP SSE, because the friction coefficient exceeds the seismic demand acceleration, as demonstrated by calculation N-93-026. The Aux Building seismic demand used in the calculation envelopes the Control Building 26' elevation.

2. There is sufficient capacity in the existing anchorage pattern to cany the load from the existing bays; however, It is the judgement of the SRT that it is good design practice to anchor all bays.

J

3. The unsecured hoist is not a design basis issue.

Wl:c:n:in Electric P:w:r Camp ny - Pcint B ich Nuct:ar Pirnt GIP Rev 2, Corr &ctId 2/14/92 OUTLIER SEISMIC VERIFICATION SHEET (OSVS)

Sheet 2 of 2 ID : 18-04 (Rev. 0) l Class : 2. Low Voltage Switchgear

, [

Description : 480V SAFEGUARDS LOAD CENTER

! \\

Building : CB l Floor El. : 26.0000 l Room. Row / Col: AREA 3 4

4. CERTIFICATION:

The information on this OSVS is, to the best of our knowledge and belief, correct and accurate, and resolution of the outlier issues listed on the previous page will satisfy the requirements for this item of equipment to be verified for seismic adequacy:

A*f '

6/,c Date:

Approved by:

/

M' Osw l

(O e

Wi c nrin El:ctric Pow:r Ccmp ny - Paint brach Nucirr Pl:nt GIP Rr,v 2, Correctsd,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 1 of 5

,]

ID : 18-04 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear i

(/

Desenption : 480V SAFEGUARDS LOAD CENTER Building : CB l Floor El. : 26.0000 l Room. Row / Col: AREA 3 Manufacturer, Model. Etc.

SEISMIC CAPACITY VS DEMAND 1.

Elevation where equipment receives seismic input 26.00 1

2.

Elevation of seismic input below about 40' from grade (grade = 8.00)

N/A 3.

Eouipment has fundamental frequency above about 8 Hz (est. frequency = 8.00)

N/A 4.

Capacity based on:

1.50

Bounding Spectrum 5.

Demand based on:

1.00

Conservative Design Floor Response Spectra 2.000 N

G N

LOG l

i il 0.100 e

i i

e i e i i

i i

i i ie i 1.00 LOG Hz 100.00 Capacity.. Demand File Record Cacacity H \\ GIP \\GIPispectra des LabellBounding Spectrum Demand 1 H.\\ GIP \\PROJ002D\\ spectra. des Pt. ANT [ Point BeschlBUILDINGl Control Building 1 ELEVATION 126lDIRECTIONIHorizontal

,.. mand 2 H.\\ GIP \\PROJ0020\\ spectra des PLANT l Point BeacnlBUILDINGIControl BuildingtELEVATION126l DIRECTION 1 Horizontal Does capacity exceed demand?

121 v

Wisc::nsin Electric Pcw;r Ccmpany - Paint 8:ach Nucl:ar Pl:nt GIP Rev 2, Corrected,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 2 of 5 ID : 18-04 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear x

Desenption : 480V SAFEGUARDS LOAD CENTER Building : CB l Floor El. : 26.0000 l Room, Row / Col: AREA 3 Manufacturer, Model. Etc.

1 CAVEATS - BOUNDING SPECTRUM LVS/BS Caveat 1 - Earthquake Experience Equipment Class.

Yes LVS/BS Caveat 2 - Rating of 600 V or Less.

Yes LVS/BS Caveat 3 - Side-to-Side Restraint of Breaker.

Yes*

1 LVS/BS Caveat 4 - Adjacent Cabinets Bolted Together.

Yes*

l LVS/BS Caveat 5 - Attached Weight of 100 Pounds or Less.

Yes LVS/BS Caveat 6 Externally Attached items Rigidly Anchored.

No*

LVS/BS Caveat 7 - General Configuration Similar to ANSI C37.20 Standards.

Yes LVS/BS Caveat 8 - Cutouts Not Large.

Yes LVS/BS Caveat 9 - Doors Secured.

Yes LVS/BS Caveat 10 - Adequate Anchorage.

No*

LVS/BS Caveat 11 - Potential Chatter of Essential Relays Evaluated.

Yes LVS/BS Caveat 12 - No Other Concems Yes is the intent of all the caveats met for Bounding Spectrum?

Un ANCHORAGE o

1. The sizes and locations of anchors have been determined.

Yes

2. Appropriate equipment characteristics have been determined (mass, CG, natural freq.,

Yes 3

damping, center of rotation).

3. The type of anchorage is covered by the GlP.

Yes

4. The adequacy of the anchorage installation has been evaluated (weld quality and length, Yes d

i nuts and washers, expansion anchor tightness, etc.)

5. Factors affecting anchorage capacity or margin of safety have been considered: embedment Yes i

length, anchor spacing, free-edge distance, concrete strength / condition, and concrete cracking.

& For bolted anchorages, any gaps under the base are less than 1/4.

N/A 1

7. Factors affecting essential relays have been considered: gaps under the base, capacity N/A reduction for expansion anchors.

8. The base has adequate stiffness and the effect of prying action on anchors has been N/A considered.

9. The strength of the equipment base and the load path to the CG is adequate.

No*

10. The adequacy of embedded steel, grout pads or large concrete pads have been evaluated.

Yes

11. The anchorage capacity exceeds the demand.

No Are anchorage requirements met?

ND d

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

4 i

Wiccansin El;ctric PcwIr Ccmpiny - Pcint Brach Nuct:ar Plant GIP Rsv 2, Corrccted,2/14/92 i

SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 3 of 5 ID : 18-04 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear Desenpbon : 480V SAFEGUARDS LOAD CENTER l

Building : CB l Floor El. : 26.0000 l Rocm. Row / Col: AREA 3 j

Manufacturer. Model. Etc.

INTERACTION EFFECTS 1

1. Soft targets are free from impact by nearby equipment or structures.

Yes j

2. If the equipment contains sensitive relays, it is free from allimpact by nearby equipment or No*

l structures.

l

3. Attached lines have adequate flexibility.

Yes

4. Overhead equipment or distnbution systems are not likely to collapse.

Yes i

5. No other adverse concerns were found.

Yes is equipment free of interaction effects?

Ng l

i IS EQUlPMENT SEISMICALLY ADEQUATE?

Ng j

1 j

COMMENTS 1

The SRTs are S. R. St Amour and W. Djordjevic - 10/25/93.

CAPACITY:

O The seismic demand exceeds the capacity at a low frequency, but it is acceptable because the demand is enveloped at and above the estimated frequency.

BSCav.3: Westinghouse DB-25 breakers meet all caveats. Check stiffness of side rail. There is 1/4" drift (slop),

check if rails bend less than 1/4", if so its OK because stabs on 1/2" wide.

Assume it is a simple supported beam with span of 24" and half of the Breaker weight,215 lbs, loaded at the center of the beam. Seismic acceleration in horizontal direction = 0.22g.

Moment of inertia of the rail in horizontal direction = 0.1875*1.25^3/12=0.0305 in^4.

Max. displacement of the rail in the horizontal = (P*L^3) / (48'E*l) = (0.22

215

24 ^3) / (48

29E6

0.0305) =

QAHrin < allowable 0.25 in. -> OK.

. g ~ BSCav.4: All cabinets interconnected with 6 - 3/8" bolts per side. The cabinet sides are of 1/8" sheet meta

%p anchorage.4 BSCav.6: Outlier, the switchgear is attached to a transforme ANCHORAGE:

o The switchgear consists of 9 bay lineu The first two bays are 18" and 30" wide respectuely and the rest are 26" wides. The switchgear is 90" tall an 0" deep, except for the first bay which is almost 72" deep.

The switchgear is anchored by 4 -

" fillet welds,3 - 2"long and 14.5"long, evenly spaced along the front. The rear is secured by 4-1/2" diameter plug welds, one in each of the first two bays, one in a middle bay and one in the last bay. The cabinet bays are welded to a edge which is embedded into a concrete pad. The anchorage load path is an outlier because there are too man unanchored cabinets between the anchored ones.

CMA)FST.L, Interactions:

N Outlier, there is a trolly hoist which is to free travel along the length of switchgear, wobble and vibrate. Hence, design a clamp to prevent travel and vertical wobbling.

Other, The following items are sub-components of 18-04 :

l Wisctn:In Electric Pcw:r Ccmp ny - Pcint Beach Nucl:ar PI:nt GIP REV 2, Corrteted,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 4 of 5 j

ID : 18-04 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear

(

Desenption : 480V SAFEGUARDS LOAD CENTER l

Budding : CB l Floor El. : 26.0000 l Room, Row / Col: AREA 3 Manufacturer, Model. Etc..

1852-17B FEED TO 18-04 FROM 1X-14 STATION SERVICE XFMR 185218A PWR TO 1W-1C1 CONT ACCIDENT RECIRCULATION FAN 1852-18B PWR TO 1W-1D1 CONT ACCIDENT RECIRCULATION FAN 1852-19A PWR TO 1P-148 CONTAINMENT SPRAY PUMP i

1852-218 PWR TO PP-13 PZR BACKUP HEATER D GROUP PWR PANEL 1852-22C PWR TO PP-12 PZR CONTROL HEATER E GROUP PWR PNL 1852-238 PWR TO 1P-118 COMPONENT COOLING WATER PUMP 1852-23C NORMAL PWR TO 18-42 PAB SAFEGUARDS MCC 1852-24C PWR TO 18-49 TRAIN B BATTERY CHARGER SUPPLY MCC Evaluated by:

Date:

A c /u u

Attachment:

Pictures

! n lV 4

^

T i

4

!O I

1 w

il i

f Wisconsin Elsctric Powar Company - Point Bsach Nuclear Plant GIP Rev 2, Corrected,2/14/92 l

SCREENING EVALUATION WORK SHEET (SEWS)

Status: No l

Sheet 5 of 5 I

ID : 1B-04 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear

{

Desenption : 480V SAFEGUARDS LOAD CENTER Building : CB l Floor El. : 26.0000 l Room Row / Col: AREA 3 l

Manufacturer. Model. Etc.

PICTURES I

to a

p i

m Fig.1: 18-03 & 18-04 Low Voltage SWGR (typical).

Fig.2: Anchorage Weld to Grout Pad Edge Channel.

i

}

! O O

4 4

i 1

3 4

Wi:ctnsin El;ctric Pcwcr C::mpIny - Pcint Bxch Nuclxr Plant GIP Rav 2, Correct d 2/14/92 OUTLIER SEISMIC VERIFICATION SHEET (OSVS)

Sheet 1 of 2 ID : 28-04 (Rev. 0) l Class : 2. Low Voltage Switchgear O

Desenption : 480V SAFEGUARDS LOAD CENTER d

Building : CB l Floor El. : 26.0000 l Room. Row / Col: AREA 3

1. OUTLIER ISSUE DEFINITION - Mechanical and Electrical Eautoment a.

Identify all the screening guidelines which are not met. (Check more than one if several guidelines could not be satisfied.)

Capacity vs. Demand Caveats X

Anchorage X

Seismic Interaction X

Other b.

Describe all the reasons for the outlier (i.e., if all the listed outlier issues were resolved, then the signatories would consider this item of equipment to be verified for seismic adequacy).

I 1. A transformer which is anchored by friction clips (i.e. is itself an outlier) is attached to the switchgear.

2. There are too many unanchored bays between the anchored bays in the switchgear line-up, hence the load path is an outlier.

3. There is an oserhead trolly hoist which is free to wobble, vibrate and travel along the length of the switchgear. There is a possible of impact between the switchgear and the trolly hoist, which may cause essential relays to chatter, hence an outlier.

4. There is loose ste61 material inside cubical 2B00-32B-2B04.

V

2. PROPOSED METHOD OF OUTLIER RESOLUTION (Ontionall a.

Defined proposed method (s) for resolving outlier.

1. Provide adequate anchorage for the transformer.

2. Provide additional anchorage for the unanchored switchgear bays. Recommend anchorage at the seam between the bays.

3. Design a clamp to prevent travel and vertical wobbling of the hoist on top of the switchgear.

4. Removed the loose material inside cubicle 2B00-32B-2B04.

b.

Provide information needed to implement proposed method (s) for resolving outlier (e.g., estimate of fundamental frequency).

3. SEISMIC OPERABILITY EVALUATION:

1. The friction clips provide adequate anchorage to withstand the PBNP SSE, because the friction coefficient exceeds the seismic demand acceleration, as demonstrated by calculation N-93-026. The Aux Building seismic demand used in the calculation envelopes the Control Building 26' elevation.

3[V

2. There is sufficient capacity in the existing anchorage pattem to carry the load from the existing bays; however, it is the judgement of the SRT that it is good design practice to anchor all bays.

Wl:ctnzin El:ctric P:w r Camp:ny - Print Occch Nuclxr PI:nt GIP R;;v 2, Corr:cted 2/14/92 OUTLIER SEISMIC VERIFICATION SHEET (OSVS)

Sheet 2 of 2 ID : 2B-04 (Rev. 0) l Class : 2. Low Voltage Switchgear I

Desenption : 480V SAFEGUARDS LOAD CENTER

,C/

Building : CB l Floor El. : 26.0000 l Room, Row / Col: AREA 3

3. The unsecured hoist is not a design basis issue.

4. Material has been removed from inside of cubicle 2800-328 2804.

i

4. CERTIFICATION:

The information on this OSVS is, to the best of our knowledge and belief, correct and accurate, and resolution of the outlier issues listed on the previous page will satisfy the requirements for this item of equipment to be verified for seismic adequacy:

Approved by:

Date:

L'

&khr A,

wz. 35 1

9 e

Wi:ctnsin Electric Paw!r C:mp ny - P Int E ach Nucirr Plant GIP R:v 2, Corrcct d,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 1 of 5 ID : 2B-04 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear

^

Desenption : 480V SAFEGUARDS LOAD CENTER Duilding : CB l Floor El. : 26.0000 l Room, Row / Col: AREA 3 Manufacturer. Model, Etc.

SEISMIC CAPACITY VS DEMAND 1.

Elevation where equipment receives seismic input 26.00 2.

Elevation of seismic input below about 40' from grade (grade = 8.00)

N/A 3.

Equipment has fundamental frequency above about 8 Hz (est. frequency = 8.00)

N/A 4.

Capacity based on:

1.50

Bounding Spectrum 5.

Demand based on:

1.00

Conservative Design Floor Response Spectra 2.000

,[

l l

,l

\\

G N

LOG l

'"""~...............:

(

r l

l il 0.100 i

i i

i i i i i

i i i i ii 1.00 LOG Hz 100.00 Capacity.. Demand File Record Capacity H:\\GlP\\GIPupectra. des Label l Bounding Spectrum Demand 1 H:\\GlP\\PROJ002D\\ spectra.deo PLANT l Point Beech lBUILDINGIControl Building l ELEVATION l26l DIRECTION l Horizontal Demand 2 HAGIP\\PROJ002D\\ spectra. des PLANT l Point Beach l BUILDING l Control Building lELEVATIONI261 DIRECTION l Horizontal Does capacity exceed demand?

les O

..m

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

I' Wisesn::in El:ctric Pcw:r Ccmpany - Pcint Bacch Nucl:Er Plant GIP Rav 2, Corrected,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 2 of 5 l

lD : 2B-04 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear lI Desenption : 480V SAFEGUARDS LOAD CENTER Building : CB l Floor El. : 26.0000 l Room, Row / Col: AREA 3 Manufacturer, Model. Etc.

l CAVEATS - BOUNDING SPECTRUM f

LVS/BS Caveat 1 - Earthquake Experience Equipment Class.

Yes LVS/BS Caveat 2 - Rating of 600 V or Less.

Yes LVS/BS Caveat 3 - Side-to-Side Restraint of Breaker.

Yes*

3 LVS/BS Caveat 4 - Adjacent Cabinets Bolted Together.

Yes*

j LVS/BS Caveat 5 - Attached Weiqht of 100 Pounds or Less.

Yes l

LVS/BS Caveat 6 - Extemally Attached items Rigidly Anchored.

No*

i LVS/BS Caveat 7 - General Configuration Similar to ANSI C37.20 Standards.

Yes l

LVS/BS Caveat 8 - Cutouts Not Large.

Yes l

LVS/BS Caveat 9 - Doors Secured.

Yes LVS/BS Cavest 10 - Adequate Anchorage.

No*

l LVS/BS Caveat 11 - Potential Chatter of Essential Relays Evaluated.

Yes i

LVS/BS Caveat 12 - No Other Concems Yes is the intent of all the caveats met for Bounding Spectrum?

Ng ANCHORAGE 1

1. The sizes and locations of anchors have been determined.

Yes j

2. Appropriate equipment characteristes have been determined (mass, CG, natural freq.,

Yes damping, center of rotation).

]

3. The type of anchorage is covered by the GIP.

Yes l

4. The adequacy of the anchorage installation has been evaluated (weld quality and length, Yes nuts and washers, expansion anchor tightness, etc.)

5. Factors affecting anchorage capacity or margin of safety have been considered: embedment Yes i

length, anchor spacing, free-edge distance, concrete strength / condition, and concrete j

{

cracking.

6. For bolted anchorages, any gaps under the base are less than 1/4.

N/A J

l

7. Factors affecting essential relays have been considered: gaps under the base, capacity N/A i

reduction for expansion anchors.

8. The base has adequate stiffness and the effect of prying action on anchors has been N/A l

considered.

l

9. The strength of the equipment base and the load path to the CG is adequate.

No*

10. The adequacy of embedded steel, grout pads er large concrete pads have been evaluated.

Yes

[

11. The anchorage capacity exceeds the demand.

No l

Are anchorage requirements met?

MQ i

i iO 1

a

1 Wl;cansin Electric P:w:r Csmp ny - P: Int B:ach Nucl:ar PIInt GIP Rav 2, Correct::d,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 3 of 5

(~%

10 : 28-04 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear U/

Descnption : 480V SAFEGUARDS LOAD CENTER 3

Building : CB l Floor El. : 26.0000 l Room. Row / Col: AREA 3 i

Manufacturer, Model. Etc.

INTERACTION EFFECTS

1. Soft targets are free from impact by nearby equipment or structu es.

No*

2. If the equipment contains sensitive relays, it is free from all impact by nearby equipment or No*

l structures.

3. Attached lines have adequate flexibility.

Yes

4. Overhead equipment or distnbution systems are not likely to collapse.

Yes 5 No other adverse concerns were found.

Yes is equipment free of interaction effects?

Hg IS EQUIPMENT SEISMICALLY ADEQUATE 7 Na COMMENTS The SRTs are S. R. St Amour and W. Djordjevic - 10/25/93.

CAPACITY:

O The seismic demand exceeds the capacity at a low frequency, but it is acceptable because the demand is V

enveloped at and above the estimated frequency.

BSCav.3: Westinghouse DB-25 breakers meet all caveats. Check stiffness of side rail. There is 1/4" drift (stop),

check if rails bend less than 1/4", if so its OK because stabs on 1/2" wide.

Assume it is a simple supported beam with span of 24" and half of the Breaker weight,215 lbs, loaded at the center of the beam. Seismic acceleration in horizontal direction = 0.22g.

Moment of inertia of the rail in horizontal direction = 0.1875*1.25^3/12=0.0305 in^4.

Max. displacement of the rail in the horizontal = (P*L^3) / (48'E*l) = (0.22

215

24 ^3) / (48

29E6

0.0305) =

,ogg,.D Gttfin < allowable 0.25 in. -> OK.

'BSCav.4: All cabinets interconnected with 6 - 3/8" bolts per side. The cabinet sides are of 1/8" sheet metal stock.

BSCav.6: Outlier, the switchgear is attached to a transformer which is an outlier itself due to friction clip anchorage.

ANCHORAGE:

The switchgear consists of 9 bay lineup. The first two bays are 18" and 30" wide respectively and the rest are 26" wides. The switchgear is 90" tall and 60" deep, except for the first bay which is almost 72" deep.

The switchgear is anchored by 4 - 3/8" fillet welds,3 - 2"long and 1-1.5" long, evenly spaced along the front. The rear is secured by 4-1/2" diameter plug welds, one in each of the first two bays, one in a middle bay and one in the last bay. The cabinet bays are welded to a edge which is embedded into a concrete pad. The anchorage load path is an outlier because there are too man unanchored cabinets between the anchored ones.

C.hPW G.L. @Ysh5

(-

Interactions:

Outlier, there is a trolly hoist which is to free travel along the length of the switchgear, wobble and vibrate. Hence, design a clamp to prevent travel and vertical wobbling.

Also, an outlier because there is loose steel material inside cubical 2800-328-2B04 which need to be removed.

s t

Other-

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

f i

I' l

Wi cannin Electric Pow:r C:mp:ny - P int Bacch Nucl::r Plant GIP R&v 2, Corr &ct d,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No l

Sheet 4 of 5 ID : 28-04 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear i

Desenption : 480V SAFEGUARDS LOAD CENTER 4

Building : CB l Floor El. : 26.0000 l Room. Row / Col: AREA 3 j

j Manufacturer Model, Etc.

l The following items are sub-components of 2B-04 :

j 2852-25B FEED TO 2B-04 FROM 2X-14 STATION SERVICE XFMR l

2B52-26A PWR TO 2W-1C1 CONT ACCIDENT RECIRCULATION FAN 2852-26B PWR TO 2W-1D1 CONT ACCIDENT RECIRCULATION FAN 2852-278 PWR TO P-320 SERVICE WATER PUMP 2BS2-27C NORMAL PWR TO 2B427C-8957D P-32E SW PUMP XFR SW j

4 2B52-288 PWR TO 2P-118 COMPONENT COOLING WATER PUMP J

2BS2 29A NORM PWR TO 2B429A-89588 2P-10B RHR PUMP XFR SW l

2852 29B PWR TO PP-18 PZR BACKUP HEATER D GROUP PWR PANEL j

2B52-30C PWR TO PP-17 PZR CONTROL HEATER E GROUP PWR PNL 2

2B52-31A PWR TO 28-49 TRAIN B BATTERY CHARGER SUPPLY MCC i

2B52-31B ALT PWR TO 2B-42 PAB SAFEGUARDS MCC 2B52-31C PWR TO P-38B AUX FEEDWATER MOTOR-DRIVEN PUMP J

l 2852-32C NORMAL PWR TO 2B-42 PAB SAFEGUARDS MCC j

Evaluated by:

Date:

W 7

E, b, Zk95

Attachment:

Pictures O

Wisconsin Elsctric Powsr Company Point Beach Nuctsar Plant GIP Rev 2, Corrected,2/14/92

)

SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 5 of 5 l

lD : 2B-04 ( Rev. 0 )

l Class : 2. Low Voltage Switchgear j

Desenption : 480V SAFEGUARDS LOAD CENTER l

Building : CB l Floor El. : 26.0000 l Room Row / Col: AREA 3 i

Manufacturer. Model. Etc.

t l

PICTilEES l

i

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..e t.

e m.

e n.

W i. ;../*

,;a l

Fig.1: 18-03 & 18-04 Low Voltage SWGR (typical).

Fig.2: Anchorage Weld to Grout Pad Edge Channel.

i O

e 1

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t 1

Client:

Wisconsin Electric Power Company Calculation No.

91C2696-C-017

Title:

USl IPEEE, Equipment Fragilities for 18-03,18-04,28-03,2B-04,1C-151-155,1C-156-157, j

1C-161-165, 2C-151-155, 2C-161-165 and 2C-166-167,.

Project Point Beach Nuclear Plant Method:

Conventional Engineering Hand Calculations.

i Acceptance Criteria:

"A Methodology for Assessment of Nuclear Power Plant Seismic Margin" EPRI NP-6041 Revision 1. August 1991 l

Remarks:

O l

REVISIONS No.

Description By Date Chk.

Date App.

Date 0

Initialissue

[ g.

J////f,f M 9 /4/95 Illh kiIl I

f CALCULATION CONTRACT NO.

COVER SHEET 91C2696 FIGURE 1.3 stavenson & Associates

ML20116M572

Text

Title:

SUBJECT:

SUBJECT:

SUBJECT:

SUBJECT:

SUBJECT:

Attachment:

Attachment:

Attachment:

Attachment:

Subject:

Dear Scott,

Attachment:

Attachment:

Attachment:

Attachment:

Title:

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