ML18039A532
| ML18039A532 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 11/19/1986 |
| From: | TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML18039A528 | List: |
| References | |
| BFEPC80597, NUDOCS 9810020131 | |
| Download: ML18039A532 (92) | |
Text
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6ll REFERENCE DRAB'/NGSc 4IN57P ICONCRETEJ A ~ +~AS NANRrcgy BRtPF MtCSEAy, spy lpga~~ A RO ISSUED FOR ECN PO934 0 aa MISCELLANEOUS STEEL 6XO-7 (MIN) W.B. SEISMIC CONDUIT 2 UNISTRUT CLAMP PIII2 CALCULA TION BRANCHIPROJECT INOwNI ~ERAT MJQ~4g I UNISTRUT PIOOO X OLII" IDENTIFIERS:BFEPC80597 vc~st Mam tv w~ pg~lt q I PL X9XO-9 W/(4)9/ 4 HOLES CONPANION DRAJYINGS< 4888/0-2 eeeiesg TS3X3X.25 X IL4 /" 4A I O'A MATERIAL DESCRIPTION < I 4IlbtO ei AS CONSTRUCTED
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TvA 64 {05.9 65) loP wP f b5) (5g +0(< lTED STATES 'GOVERNhlEilT SR2 '87P gy8 7o 1 emorandum TENNESSEE VALL'EY AUTHORITY TO : ,Browns Perry Engineering:Project Files QA RFCOaD FROM : .T. G. Hayes,'echanical Engineer, Browns Ferry Engineering Project, JUN ga @87 870622T0375 ~m SUBJECT BRCNMS FERRY HUCLEAR'LAHT (BFH) CONTRACT NUMBER 839299 FILE HUMBER H/h, SQUADCHECK HUMBER MBH-96, SEISMIC QUALIPIChTIOH OF GEHERAL ELECTRIC MODEL TFK 236~225ML CIRCUIT BREAKERS WITHOUT TRIP ELEMEHTS . ECH PO399
Reference:
Equipment Qualification Report for GE Circuit Breaker by Hutherm Report Ho. TVh-2509R, Rev. 0 LEVEL 'OF QUALIFICATIOH AHD METHOD ASSEMBLY X CATEGORY I CATEGORY I(L) (CLASS I) (CLASS II) X DEVICE X hCTIVE NONACTIVE LOCATION: Reactor Building between 621.25 ft.and 639 ft. X .APPROVED APPROVED M/CORRECTIONS DISAPPROVED BhCKGROUHD IHFORMATIOH: TVh is purchasing these circuit breakers without trip elements for use,as disconnect switches. They will be mounted in. JB-193 and 196 as shown on TVA drawings 45M326B and. 45M327B. The boxes are to be mounted with the top,7 feet above elevation 621.25 ft. The boxes wore tee>cd -'ri)la 'foe'VA ~1th du~wy >>>.'"W>~. t'xcitation levels of the dummy weignts were monitored. COMMEHTS AHD RECOMMEHDhTIOHS FOR TVA USE ONLY: The reference was reviewed. It documents both R"ndom Multifrequency and Sine Beat testing of GE breakers. Hutherm certifies that the
.breakers TVA is purchasing, on the subject contract are seismically similiar to those tested. The test adequately envelopes the
,contract requirements.
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Browns Ferry EnEineering Progect Files BROWHS FERRY HUCLEAR PLAHT (BFH) COHTRACT HUMBER 839299 FILE HUMBER H/A, SQUADCHECK HUMBER WBH-96, SEISMIC'UALIFICATIOH OF GEHERAL ELECTRIC MODEL TFK 2364225WL CIRCUIT BREAKERS WITHOUT TRIP ELEMEHTS ECH PO399 At this time, the test report for the boxes is not available. When ready, the data contained in it must be evaluated along with the reference to insure box and breaker qualification are consistent. Responsible Eng er A TCH: hEr $$ cc~ SL 26 C-K R. 0. Barnett, W9 D224 C-K--Attn: J. K. Rochelle, Please incorporate this memorandum into the Equipment Qualification File D. F. Faulkner, D5-EDB-BFH
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~ ~ 7 g~CL gc,/c UNITED STATES GOVERNMENT 822 '87 0q24 005 emorand um TENNESSEE VALLEY AUTHORITY TO P. J. Speidel. Project Engineer, Browns Ferry Engineering Project. Division of Nuclear Engineering, A10-EDB-BFN FROM W. E. Pennell, Acting Chief Civil Engineer, W9D224C-K DATE September 18. 1987 870930R020"'. C+3
SUBJECT:
BROWNS FERRY NUCLEAR PLANT. CONTRACT NUMBER 839272,, SQUAD CHECK NUMBER WBH-143, ECN NUMBER F0399, SEISMIC QUALIFICATION OF GENERAL ELECTRIC MODEL TFK236Y225WL AND TJH6S CIRCUIT BREAKERS MOUNTED IN A 4160 VOLT SHUTDOWN BOARDROOM CIRCUIT BREAKER BOX
REFERENCES:
, 1. Wyle Test Report 17843-1 (B41870608011)
- 2. Nutherm Equipment Qualification Report, TVA 2481R Revision 0, Contract 87NLG 839272
- 3. Nutherm Equipment Qualification Report,"TVA 2509R Revision 0, Contract 87NLB 839299
- 4. T. O'. Hayes 'lemorandum to Browns Ferry Engineering Project File" dated June 18, 1987 (B22870618701)
LEVEL OF QUALIFICATION AND 'IETHOD:
]ASSEMBLY I~CATEGORY I I CATEGORY I (L)
(CLASS I) (CLASS 11) LOCATION Reactor Buildin between 621.25 ft. and 639 ft.
~APPROVED* 'ISAPPROVED
~1PPRO'iED WITH CORRECTIONS BACKGROUND INFOVIAT10N Reference l is a Wyle Test Report for a 4160 volt shutdown boardroom ur"a.cr b<i:;. I!e! i .i".<<i ' ..<<:,'<< ." Report for a General
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Flectric TJH6S microversatrip circuit breaker. Reference 3 is a Wyle Test Report for a General Flectric TFK236Y225WL circul,t breaker. Reference 4 approved reference 3 as evidence of device qualification. This review is of the reference l and reference 2 test reports and of the marriage of the reference 2 and 3 circuit breakers in the reference l breaker box. COMMENTS AND RECOM.'IEiIDATIONS FOR TVA USF. ONI.Y: The reference 1 test report <<xhibits accelernti<<ns of less tiuin 3g input at the circuit breaker mounting iocat iona for the boil<liny, response spectra at the above location. Th<< r<<ference 2 an> with 3y, input.
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P. J. Speidel September 18, 1987 BROWNS FERRY NUCLEAR PLANT, CONTRACT NUMBER 839272, SQUAD CHECK NUMBER WBH-143, ECN NUMBER P0399, SEISMIC QUALIFICATION OF GENERAL ELECTRIC MODEL TFK236Y225WL AND TJH6S CIRCUIT BREAKERS MOUNTED IN A 4160 VOLT SHUTDOWN BOARDROOM CIRCUIT BREAKER BOX
*Reference 1 and 2 are approved and the marriage of the reference 2 and 3 circui . breakers in the reference 1 breaker box is approved for the above...tion, however cognizant electrical personnel should review the reference 2 and 3 device tests to determine if the limits of contact chatter are acceptable.
W. ED Pennell RD IVAN t @PE D.,F. Faulkner, K. D. Handy, D58-EDB-BFN W9D186C-K W. S. Raughley, W8C126C-K J. K. Rochelle, W9D183C-K Please incorporate this memorandum the Equipment Qualification File. into
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8706,13R 1201 RESTRICTEO OlSTRIBU, ION LAOOAATOIIC5 SC'CNAf C SCIIVCES 4 SYStlM5 ~ This materfof is th~ property of the Tennessee Va! Authority, the distribution and reproduction of whlct subject to written non-disclosure c;g~eementa.
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8EXmaC SaazarrCa TE8T Z aXZaaX 4160V 8H7RSOI& MilRD XXN CDKQXT BRKhXI SQX RESTRICTED 0 I ST R I B UT I O.N This materiat is the property of the Tennessee Valley Authority. 'the distribution and reproduction of wh)ch is subject to written non-disclosure agreements. tOR TERKESSES V7LLDKT hPICHORZTT 400 MENT SKM4IT HlLL .DRIVE KSGZVIZLZ~ TKKRRRDEZ 37902
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84'l '87 OLQ8 Oil SEISMIC SlAhULATlON Test Report REPORT NO. WYLE JOB NO. CUSTOMER TV 56071A P. O. NO. k" PAGE 1 OF PAGE REPORT lt May 23, 1987 SPECIFICATION (S) See References in Section 8.0 1.0 CUSTOMER Tennessee Valley Authority (TVA) ADDRESS 400 West Summit Hill Drive, Knoxville, Tennessee 37902 2.0 TEST SPECIMEN 4160V Shutdown Board Room Circuit Breaker Box Hoffman Engineering Company 3.0 MANUFACTURER UMMARY A 4160V Shutdown Board Room Circuit Breaker Box, described in Paragraph 5.1 and hereinafter called the specimen, was sub)ected to a Seismic Simulation Test Program as required by the TVA Seismic Test Plan CEB-BN-1023 dated May 8, 1987. The test program was performed on May 15, 1987. The test program consisted of single-axis resonance search and triaxial random multifrequency testing. The specimen was instrumented with accelerometers during the test program. It w~s demonstrated thttI. the specimen possessed suffi ient integrity to withstand, w'thout compromise f "tructurer th" prese deci 3u'c environment for the Browns Ferry Nuclear Plant. sTATE oF ALasAMa coUNTY oF MADlsoN f t
"'eg Ala. Professional
. No. 8256 Eng. cxnaaoweat oanepsa, ~ca.
PREPARED BY
~ ertta ~ ptonciro ee aa ncaa ~
ettca ates naw no aacaaty tot oanectaa d any sad to panon ot ptboany. acta.~ acecet ot tty cne taoon S Flavous R. Johnson
, helot duly sworn, E. cm h deposes and aaya: Tbe Information contalnect In
~ lully cond ed teats and la to tne port Ia the result ot complete ol bl knowtedpe true and correct in APPROVED BY ~+<~ ~7 a rn to or day ol .I9 wYLE Q. A. 0 M 4//0 G. I . High Notary ublic in and lor the State ot Alaba My Commission aspires (064)
LABORATORIES SCIENTIFIC SERVICES 5 SYSTEMS QROLIP
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Page No. Test Report No. 17843-1 SHSQQtT (Continued) Table I, located on Page 9, contains descriptions of the test runs. Figure 1, located on'Page ll, shows the dummy weigh" fabrication details. Pigures 2 through 5, located on Pages 12 through 15, show the Operating Basis'arthquake and Safe Shutdown Earthquake Required Response Spectra. Photographs 1 through 4, located on Pages 17 and 18, show the, s~imen insWLled on the Wyle Triaxial Seismic Simulator Table, the locations of the specimen-mounted acceXerometers, and the dummy v-ights installed in the enclosure. Appendix I, beginning on Page 19, contains the Transmissibility plots from the resonance search tests. Appendix ZZ, beginning on Page 53, contains the Test Response Spectrum plots for the Operating Basis Earthquake and Safe Shutdown Earthquake te5'ts Appendix IZZ, beginni,ng on Page 143, contains the Instrumentation Log Sheets, the Instrumentation Equipment Sheets, and the Instrumentation Data Sheets. Appendix IV, beginning on Page 153, contains the TVA Test Plan CEB-BN-1023 dated May 8, 1987. WYLK LA80$VLTOAIES Huntavlll~ Facility
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Test Report No. 17843-1 8peciaen Noantiag and Orientation A 4160V Shutdown Board Room Circuit Breaker Box, approximately 36" wide by 12" deep by 48 high and weighing less than 350 pounds, hereinafter caLled the specimen, shall be bolted to a 7" length of P1000 Unistrut at four locations using P1008 Unistrut nuts, P1063 Unistrut plate fittings, and 3/8-16 hex head bolts. The P1000 Unistruts sha11 be bolted to a Myle-fabricated vertical test fixture with two each 3/8'307 or equivalent bolts. The sp limen then shall be ins tailed on the Ryle Triaxie1 .Seismic Simulator Table such that the principal axes of th' specimen shall be colinear with the axes of excitation of the test table. The test fixture shall be welded to the test table. The mounting of the specimen shall simulate its in-service configuration as closely as practical. Pour duaiay weights (two 12-pound and two 50-pound) shall be fabricated as shown in Pigure 1 and shall be installed on the enclosure'n'ne'r panel to simulate two GE P225 circuit breakers and two GE 3600 circuit breakers. A low-level (approximately 0.2g) single-axis sine sweep from 1 to 40 to 1 az shall be performed in each of the three orthogonal axes to determine major resonances. The sweep rate shall be one octave per minute. Trans-missibility plots of the specimen-mounted accelerometers shall be provided. RmHea Nxltifreqaency Tests The specimen shall be subjected to 30-second duration triaxial multifre-quency random motion which shall be amplitude-controlled in one-third octave bandwidths spaced one-third .octave apart over the frequency range of 1 to 100 Hz. Three simultaneous, but independent, random signals ~hall b) uaad .-:a t.".a excitation o pro<:"= g':,. 'incoherent motions in the vertical and two horizontal axes. The amplitude of each one-third octave bandwidth shall be independently adjusted in each of the three axes until the Test Response Spectra (TRS) envelop the Required Response Spectra (RRS) within the limitations of the test machine. The resulting tab'e motion shall be analyzed by a response spectrum analyzer .at 0.5% and 5% damping for the Operating Basis Earthquake (OBE) tests, and at 1% and 5% damping for the Safe Shutdown Earthquake (SSE)'est, and plotted at one-sixth octave intervals over the frequency range of 1 to 200 Hz. The specimen shall be subjected to five OBE tests and one SSE test. The OBE and SSE RRS are shown in Figures 2 through 5. WYLE LABORATORIES Huntsvlll~ Faclllty
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Test Report No. 17843-1 TEST PRX35KBES MD RESULTS Specimen l50tBlting and Orielltaticxl Procedures The specimen vas bolted to a 7'ength of P1000 Vnistrut at four locations using P1008 Vnistrut nuts,P1063 Unistrut plate fittings, and 3/8-16 'hex head bolts. The P1000 Unistruts were bolted to a Wyle-fabricated vertical, test fixture, with tvo each 3/8" Grade 2 bolts. The specimen was then installed on the Wyle Triaxial Seismic Simulator Table such that the principal axes of 'the specimen v re colinear vith the axes of excitation of the test'table. The test fixture was velded to tl e test table. The mounting of the specimen simulated its. in-service configura-tion as closely as. practical. Pour dummy weight> (tvo '12-.pound and two 50-pound) were fabricated as shown in Pigure 1 and vere installed on the enclosure inner panel to simulate two GE P225 circuit breakers and two GE J600 circuit breakers. Since some of the dummy weight material vas lost in cutting the veights from a steel plate. vith a torch, it was necessary to make up for the lost veight by velding 3/4" bar stock to the inside of the 3". x 8-3/8" x 1/2" plates of the: 12-pound dummy veights and to the inside of the 3" x 16" x 1/2,plates of the 50;pound dummy weights to return the total veights to the required 12'nd 50 pounds. Photographs 1 and 4 shov the specimen installed on the test table and the dummy vei'ghts installed in the enclosure. Resocmace Search Test Procedure A low-level (approximately 0.2g) single-axis sine sweep from 1 to 40 to 1 Hx vas perfor'med to determine major resonances. The sweep rate was one octave per minute. Resonance Search Test Resu1ts The resonance search te=~s are ~e~t'ri"~u in Table I. Transmissibility plots from the resonance- search tests are contained in Appendix I. QfYLE L'ABOAATGAIEB Huntovtllo Facility
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Test Report No. 17843-1 6.0 TEST PR)CEDGRES hRD RBSUEXS (Continued) 6 3 Raadcm XaItifrequency Test Procedure The specimen was sub)ected to 30-second duration triaxial multifrequency random motion which was amplitude-controlled in one-third octave band-widths spaced one-third octave apart over the freauency rarge of 1 to 100 Hz. Three simultaneous, but independent, random. signals were used as the excitation to produce phase-incoherent motions in the vertical and two horizontal axes. The amplitude of each one-third octave bandwidth was independently ad)usted in each of the three axes until the TRS enveloped the ~. The resulting table motion was analyzed by a response spectrum arwlyzer at 0.5% and 5% damping for the OBE tests, and at 1% and 5% damping for the SSE test, and plotted at one-sixth octave intervals over the frequency range of 1 to 200 Hz. The specimen was sub)ected to five OBE tests and one SSE test. The RRS are shown in Pigures 2 through 5. 6.3.1 Randoa Nxltifr Test Results Zt was demonstrated that the specimen possessed sufficient structural integrity to withstand the prescribed simulated seismic environment. Table I contains descriptions of the test runs. TRS plots of the control accelerometers from the OBE and SSE tests at the required damping are contained in Appendix ZZ. Special Respoase Procedure Pif teen specimen-mounted uniaxial piezoelectr ic accelerometers were mounted on the specimen as shown in Photographs 2, 3 a'nd 4. Magnetic tape recorders provided a record of each accelerometer response. 6.4.1 Transmissibility plots from the resonance search 'tests are contained in Appendix Z. TRS plots (filtered at 100 Hz) of the specimen-mounted accelerometers from one OBE test and the SSE test are contained in Appendix II. VtfYLR LABCAATQRlc8 Huntsvlllo F tclllty
4i ~O
-Test, Report No. 17843-1 8 0 8.1 TVA Contract No. TV-56071A.
8 2 TVA Seismic Test Plan CES-BN-1023 dated May 8, 1987. 8.'3 IEEE'tandard 344-1975 Specification entitled "IEEE Recommended Practices for Seismic Qualification of Class 1E Equipment for Nuclear Prier Generating Stations." 8 4 Nyl Laboratories'Eastern Operations) "Quality Assurance Program" manual dated April 1987. WYLE LASORATORIES Huntsville Facility
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RNP Tr iaxial 2g'BE Triaxial Triaxial Triaxial Triaxial Triaxial Triaxial SSE SS ~ Sine. Sweep RP " Random Multi f r"uen<<~ FB ~ Front-to-Back SS ~ :Side-to-Side V ~ Vertical OBE. ~ Operating Basis Earthquake SSE. ~ Safe Shutdown Earthquake WYL'E LABORATORIES huntsville Faclllty
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ATTACHMENT 4 '0 Ol 0
Revision ~Corrected, 6/28/91 Status Y N U SCREENING EVALUATION HORK SHEET (SENS) Sheet I of // Equip. ID No. 2-cAcu-SC -)SC Equip. Class 0 - Other Equipment Description 0 Location: Bldg. ~>> Floor El. C4 ~ Room, Row/Col Manufacturer, Model, Etc. (optional) SEISMIC CAPACITY VS DEMAND Does capacity exceed demands ~YN U N/A ~& CD ANCHORAGE Is the anchorage adequate? QY N U N/A interaction effects'Y INTERACTION EFFECTS Is equipment free of adverse seismic N U N/A IS E UIPMENT SEISM LLY ADE VATES YNU G.0-1
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Revision 2, orrected, 6/28/91 SCREENING EVALUATION MORN SHEET (SEWS) Sheet 2 of
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EQE INTERNATIONAL SHEET NO. JOB NO. g)I4 l JOB 0 BY DATE ~+C .~> CALC. NO. ruBJECT >-'-lC-0-R . 1-lM CHK'D DATE "~T 0> '~is iE<+vvc-lid TETTTT~~~ w (w i-iyga,p,uviC.
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~ac" 0 ~ I Rdo 85/oz8 v'87 GiNEBAL ". ELECTRlC NUCt.EAR ENERG'i BUSINESS OPERA (ONS Q=N ".-Al. ' T~:~ (OVPANY ~ STt-' REST SCUTNEAST ~ i~E~-'.TUB A'EA4'.4 bii PC. BCX 9223 ~ DECATUR, A~4 SA."A4. 3S~C9 G-BR-~-209 g,Q fl'~vie, Octobe" 22, 1985 geog t 3 ~'(i/
A~oq(g Sro8 Mr. J. A. Coffey, Direc o Tennessee Valley Author ty Browns Ferry Site P. O. Box 2000. U't'ai Deca t" r, Alab=-na 3 5" G2
SUBJECT:
S TSMiC CAPAB ' -' O FR=" STANDI..'G H DRAULIC CONTROL ' (HCT') AT BROW" S FZmRY De- Mr. Co==ey: The pur=ose of this letter is to inform you that the freestahding hvdraul'c control, units at, the Browns :erry Site have been evaluated aca'nst the appl'cable se'smic loads and found to be acce-tab'e. The freestanding un't was theoret'caTly eva'uated agains" the se'snic spectra, ( ohn Blue & Associ="tes) for mass point 7 f 1% dam-ing, a..d botn B-h'nd N-S di"ections. Loads from both hor'"ontal directions were combined using the square root of the sum of the sq'res (SWISS) m thod, and the capaoility of the reestanding un' was found to exceed the ap=lied load'ng. Sincerely, U J. E. Jones
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Serv'ce Pro-ect Ma-. age" C Z C CC: G. A. D =-ver P.C. G. AJ.
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JOHN A GLUME + ASSOC. ENGINEERS 1~ 8 RESPONSE ACCELERATION SPECTRUM HROMNS FERRY NhSS 7 E-M(W,5&5 leC CO RATIO- 0. N-S p.lW GAMP I NB 01 Oi EC M 1
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JOHN A BLUNE + ASSOC. ENGINEERS RESPONSE ACCELERAT ION SPECTRUM BROGANS FERRY NASS 7 -NS(Cw,S5 DAMPING RATIO- O.OiOs EC N-S l,3z.15 Ai< ~~P~icu Dm~)
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SSEL Line No. 0001 Status N U AI I of I 'heet IPEEE SUPPLEMENTAL SCREENING EVALUATION WORKSHEET Equip. ID No. 2-HCU-85 1-185 Equip. Class 00-Equipment Description CRD/HYDRAULIC CONTROL UNIT RELAY WALKDOWN
- 1. Does spot check relays, present of essential relays indicate and properly mounted?
Y N U (Q
- 2. Are essential relays required to function Y N U ~N/
during earthquake screened out? If no, attach list of relays with locations in cabinet and general dimensions, thicknesses and details of mounting plates that support relays for later analysis. t 3. No other .relay concerns? Requirements for'elays satisfied? SYSTEM INTERACTION EFFECTS I. No potential sources could flood or spill onto Y Q) N N U U N/A QN U cabinet? DESCRIBE POTENTIAL PROBLEMS INDICATED BY NO OR UNSATISFACTORY (Use additional sheets if necessary) IS EDUIPNENT FREE OF NEED FOR FURTHER INVESTIGATION, EXCLUDING RELAY CHATTER' YES NO S EOUIPMENT F F EED FOR FURTHER RELAY CHATTER INVESTIGATION? YES/ NO Evaluated by: Date: '7 Evaluated by: Date:
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s~~<4 ~e Revision g Corrected, 6/28/91 Status ~Y N U SCREENING EVALUATION WORK SHEET (SEMS) Sheet 1 of 2 Equip, ID No. 3- C4-Ss - 8 Equip. Class 0 - Other Equipment Description I CV Location: Bldg. 4~ Floor R1. cbf Room, Row/Col Nanufacturer, Nodel, Etc. (optional) SEISNIC CAPACITY VS DENAND Does .capacity exceed demand? QY IN U N/A ANCHORAGE Is the anchorage adequate? QY N U N/A INTERACTION EFFECTS Is equipment free of adverse seismic +Y N U N/A interaction effects?. IS E UIPNENT SEISN LLY ADE UATE? G.0-1
0 4l 4l
5+BC 4 ~3~ Revision 2, Corrected, 6/28/91 SCREENING EVALUATION WORK SHEET (SEWS) Sheet 2 of 2 Equip. ID No.~
~
-Q u 6 -18 Equip. Class 0 - Other
~
Equipment Description C .COMMENTS Date: 785. I G.0-2
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~O 0
SSEL Line No. 30001 Status Y N U AI 0 Sheet 1 IPEEE SUPPLEMENTAL SCREENING EVALUATION MORKSHEET of 1 Equip. ID No. 3-HCU-85 1-185 Equip. Class 00-Equipment Description CRD/HYDRAULIC CONTROL UNIT RELAY WALKDOMN
- l. Does spot check of essential relays indicate Y N U ~N/
relays present and properly mounted?
- 2. Are essential relays required to function Y N U N/A during earthquake screened out?
If no, attach list of relays with locations in cabinet and general dimensions, thicknesses and details of mounting plates that support relays for later analysis.
- 3. No other relay concerns? Y N U QN/ I equirements for relays satisfied? QN U SYSTEM INTERACTION EFFECTS
- 1. No potential sources could flood or spill onto Q) N U N/A cabinet?
DESCRIBE POTENTIAL PROBLEMS INDICATED BY NO OR UNSATISFACTORY (Use additional sheets if necessary) tIS EQUIPMENT S YES / E(UIPHENT FR FREE OF NEED FOR FURTHER INVESTIGATION, EXCLUDING RELAY CHATTER? NO ED FOR FURTHER RELAY CHATTER INVESTIGATION? YES& NO Evaluated by: Date: -ts-4 Evaluated by: oat.e: f-O'-YS
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