ML20010E775

Audit of Environ Qualification of Safety-Related Electrical Equipment at La Salle County Station (Unit 1), Technical Evaluation Rept

ML20010E775
Person / Time
Site:	LaSalle
Issue date:	07/31/1981
From:	Hinton M, Humphrey T, Yost M EG&G, INC.
To:	Rosztoczy Z Office of Nuclear Reactor Regulation
References
CON-FIN-A-6453 EGG-EA-5514, EGG-EA-551Y, NUDOCS 8109080248
Download: ML20010E775 (22)

Text

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50-3 73 Cai KRC 3ese8FCh and IBChm. EGG-EA-5514 l Assistance Report July 1981 AUDIT OF THE ENVIRONMENTAL QUALIFICATION OF l

• 1 SAFETY-RELATED ELECTRICAL EQUIPMENT AT THE LA SALLE COUNTY STATION (UNIT 1) e e V , D

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This is an informal report intended for use as a preliminary or working document

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Prepar 'd for the U.S. Nutlear Regulatory Commission g Under D0t Contract No. DE-AC07-76ID01570 FIN No. A6453 N E g g g ,,,,,

8109000248 810731 PDR RES 8109080248 PDR

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C INTERIM REPORT Accession No.

Report No. EGG-EA-5514 Contract Program or Project

Title:

Equipment Qualification Case Reviews Subject of this Document:

Auait of the Environmental Qualification of Safety-Related Electrical Equipment at the La Salle County Station (Unit 1)

Type of Document:

Technical Evaluation Report Author (s):

Martin F. Hinton Thomas G. Humphrey xa o,,e ,, o f,,L,Pst UC .Researc1 anc "ecanical auis 1981 Assistance Report l Responsible NRC Individual and NRC Office or Division:

Zoltan R. Rosztoczy, NRC-DE l

This document was prepared primarily for prelimiriary or internal use. it has not received full review and approval. Since there may be substantive changes, this document should not be considered final.

EG&G Idaho, Inc.

Idaho Falls, Idaho 83415 Prepared for the U.S. Nuclear Regulatory Commission Washington, D.C.

Under DOE Contract No. DE-AC07-761001570 NRC FIN No. A6453 e

INTERIM REPORT

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AUDIT OF THE ENVIR0hMENTAL QUALIFICATION OF SAFETY-RELATED ELECTRICAL EQUIPMENT AT THE LA SALLE COUNTY STATION (UNIT 1)

Docket No.60-373 j

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. Martin F. Hinton Thomas G. Humparey Max W. Yost i

i Reliability and Statistics Branch Engineering Analysis Division EG&G Idaho, Inc.

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! NRC Research and iec,anica,,

Assistance Report 1

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e ASSTRACT The La Salle County Station (Unit 1) was auaitea to aetermine tiie environmental qualification of safety-related electrical equipment.

Results of the audit are summarizea in this report.

FOREWORD This report is supplied as part of the " Equipment Qualification Case Reviews" being conaucted for the U.S. Nuclear Regulatory, Commission, Office of Nuclear Reactor Regulation, Division of Engineering, Equipment Qualification branch by EG&G Idaho, Inc., Reliability and Statistics Branch.

The U.S. Nuclear Regulatory Commission funced the work unaer tne authorization, B&R 20-19-04-15, FIN No. A6453.

U' C Researc'a anGec'anica Assistance Report /

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~ CONTENTS ,

1.0 INTRODUCTION

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* - 2.0 -'EVALVATION ......................................................

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-3.0- CONCLUSIONS'..................................................... 2

4.0 REFERENCES

...................................................... 3 APPEhulx A--QUALIFICATION DEFICIENCIES FOR INUIVIDUAL-EQUIPMENT ITEMS ................................................ 5 APPEhulX ti--SUMMARitiS OF L5CS CENTRAL FILE REVIEWS . . . . . . . . . . . . . . . . . . . 17 1

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AUDIT OF THE ENVIRONMENTAL QUALIFICATION ~ 0F SAFETY-RELATED ELECTRICAL EQUIPMENT AT THE LA SALLE ' COUNTY STATION (UNIT 1)

1.0 INTRODUCTION

On June 15-19, 1981 a team comprised of representatives of the Reli-ability and Statistics Branch of EG&G Iidaho, Inc. and NRC staff. conducted an audit of the environmental safety related electrical equipment for the LaSalle County Station (LSCS). The w'>rk_ effort consisted of: (1) a pre-audit review of the licensee's submictal (Ref. 1), (2) an audit of the licencee's central files for selected equipment items, and (3) a visi!al

inspection of the equipment items for which the central files were audited.

Qualification deficienciss for individual equipment items are provided in l, Attachment A. Summaries of the central file reviews are provided in l Attachment B.

I e 2.0 EVALUATION l

General areas of concern which remain as a result of both the audit l

I and the pre-audit review of the LSCS submittal are as follows:

1. Many of the items requiring qualification for radiation exposure,

! particularly the NSSS items, did not appear to be qualified.

l l 2. For the NSSS items, much of the qualification was based on mini-l mal testing with the remainder by very general analysis. These general analyses were not then tied to the specific equipment i

! under consideration.

3. For many NSSS items the requirement for operability under accident conditions was not addressed.

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4. For -sake safety related' systems the associated electrical ' equip-ment (i.e. . pump motors) was not considered for qualification.

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The licensee maintained that- since these systems were redundant '

the equipment associated with them did not need to be qualified.-

5. In most cases the-period of. time for which individual items would

- remain' qualified was act indicated.

6. In many cases the qualification envelope was not adequately defined and the envelopes'in the individual summary sheets did not agree with the envelopes for' the zones in which various items of equipment were located.

7. All items requiring qualification for demineralized water spray.

were not specified.

8. In most cases the requirement for aging was not addressed.

9. During the plant inspection some items of electrical equipment were noted which had not been qualified (i.e'., terminal blocks and junction boxes).

10. In one location the specified item of equipment had been replaced by one from a different manufacturer.

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11. For one item the required test report was not included in the central files.

3.0 CONCLUSION

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As a result of the audit it was concluded that the LSCS environmental qualification of safety-related electrical equipment was not complete. The .

licensee will re-submit environmental qualification data at a later date, at which time another audit will be performed.  ;-

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4.0 REFERENCES

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-1. Interim' Staff Position on Environmental Qualification of Safety-l --

Related Electrical Equipment ..NUREG-0588..

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2.  : Environmental Qualification of Electrical. Equipment, LSCS-FSAR

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' Amendment 57, Appendix M.

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APPENDIX A.

.. QUALIFICATION'DEFICIENCIESff0R INDIVIDUAL EQUIPMENTLITEMS 1

. The legend for entries in the deficiency column ~is as follows:

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L A - ' Material. aging evaluation, replacement schedules, ongoing . equip--

ment surveillance ,

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~ Margin M -

H - : Humidity P Pressure R -

' Radiation QT -- Qualification time Temperature T -

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B0P EQUIPMENT Equipment Description Manufacturer Model Deficiency (TABLE M.5.1)

1. Medium Voltage Switchgear(I) Gould/ITE 7.5 HK-500 'A,M

2. Motor Control Center (2) Klockner-Moeller Series 170 QT,R,T,H,A,M

3. MotorControlCenter(2) Systems Control --

.A,M,QT,T,H,P

4. Electrical Penetration CONAX Custom QUALIFIED.

5. . Electrical Penetration CONAX Custom QUALIFIED

6. SkV Power Cable Kerite HTA, FR or NS QUALIFIED g 7. Low Veltage Power and Okonite Hypalon Jacket QUALIFIED Control Cable

8. Instrumentation Cable Cerro/Rockblestos Hypalon Jacket QUALIFIED l

9. Instrumentation Cable S. Moore Co. Hypalon Jacket QT

10. Instrumentation Cable .Raychem Flamtrol Jacket QT

, 11. Level Transmitter Rosemont 1152 QT,A,M,H 4

12. Pressure Transmitter Rosemont 1152 .QT,A,M,H

13. Flow Transmitter (2) Hays .T-00252A INCOMPLETE -

14. . Thermocouple (2) Weed .E4B INCOMPLETE i 15. RTO(2) Weed 611 INCOMPLETE.

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BOP EQUIPMENT (continued)

Equipment Description Manufacturer Model Deficiency

16. Flow & Temperature (2) Love 54-8115-8134- INCOMPLEfE Controller 8174 i?. Flow Switch Relay (2) Love 56-8115-8174 INCOMPLETE

18. Control Panel (2) Systems Control Custom Il1 COMPLETE

19. H2 02 Analyzer Panei(2) Delpni K-IV INCOMPLETE

20. Power Supply Panel (l) Systems Control Custom INCOMPLETE

21. Fan Motor Westinghouse TEFC,182T,286T QT

22. Valve Actuator (l) ITT NH91 FAILED m

23. Fan Motor (3) Reliance TEAD,184T,256T INCOMPLETE 284T

24. Electric Heating Coil (l) CVI --

INCOMPLETE

26. Pump Motor Reliance Horiz., DP, QT NEMA 184T

26. Recombiner(l) AI Nil 6000024-03 INCOMPLETE

27. Solenoid Valve ASCO HVA-206-832- QT,M 3F(2F)

28. Solenoid Valve ASCO WPHV-206-381- QT,M 3F

29. Solenoid Valve ASCO NP-206-380-7G QT,M c e . , r

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4 B0P EQUIPMENT -(continued)

Equipment Description Manufacturer Model Deficiency

30. Solenoid Valve ASCO NP-206-380-3F QT,M

31. Solenoid Valve Valcor V526 -QUALIFIED.

32. Limit Swtich(I) GPE Controls LICON65-430140 QT,M,A,R,P

33. Limit Switch (4) Namco EA-180 INCOMPLETE-

34. Valve Motor Operator (2) Limitorque SMB-000 QT

35. Valve Motor Operator (2) Limitorque ~ SMB QT

36. Valve Motor Operator (2) Limitorque SMB-0 ~QT

37. .. Valve Motor Operator (2) Limitorque SMB-1 .QT.

38. Valve Motor Operator (2) Limitorque SMB-3 QT

39. Valve Motor Operator (2) Limitorque SMB-4 QT-

40. Radiation Detector (I). General Atomics RD23 INCOMPLETE

41. Control Swtich(I) General Electric SBM ' INCOMPLETE i

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42. Tomperature Switch United Electric C302P-103 QUALIFIED.

43. Control Swtich(2) General Electric. CR 2940 INCOMPLETE

44. Limi.t Swtich' NAMC0 EA700-50100 QUALIFIED.

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BOP EQUIPMENT (continued)

Manufacturer Model Deficiency Equioment Description Amphenol Custom A,QT,M

45. Electrical Penetration (2)

(1) Licensee reports that qualification test will be performed on this equipment.

(2) Licensee reports that environmental qualificat son or evaluation not completed.

(3) Insufficent information in submittal.

(4) Testing on connectors has not been completed.

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r NSSS EQUIPMENT Equipment Description Manufacturer Model- ' Deficiency (TABLE M.5.2)

1. Safety Relief Valve (2) Crosby HB-65-BP M,A

2. Limit Switch NAMC0 EA740 A

3. Pressure Switch Barksdale BIT A,R 1

4. Pressure Switch STATIC-0-RING. 12N A,R,QT

5. Level Indicator Switch BAF. TON 288A .A,R

6. Level Inciating Swtich YARWAY 4418C A,R'

7. Level Indicating Transmitter BAR 0N 760 A,R,M Switch

-8. Level Transmitter ROSEMONT 1151 8,R,QT 9.- Pressure Tansmitter BAILEY 556 -A,R,P,H,.

10. Solenoid. Valve (I) ASCO HT832322 INCOMPLETE

11. Level Switch Magnetrol 751 A,R,P,H

12. Pump Motor (I) GE 324AN INCOMPLETE

13. Control Valve (l) CONAX P/N 1812-159- INCOMPLETE

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14. Voltage Preamplifier GE N/S A,R,P,QT'

15. . Detector (2) GE N/A INCOMPLETE

NSSS EQUIPMENT (continued)-

Equipmerit ' Description Manufacturer Model ' Deficiency

16. Pressure Transmitter ROSEMONT 1151 A,R,QT,M,P,H

17. Insulated Detector .GE NA05 -A,R,QT,P,HL

18. Sensor and Converter GE -- A,R

19. Pressure Switch STATIC-0-RING SN,6N- A,R

20. Power Range Detector (2) GE NA 200 IN' COMPLETE

21. Diff. Press. Indicating BARTON 288 -A,R,QT,M Switch 5 22. Flow Switch BARTON 289 A',R,QT,M i 23. Pressure Indicator Swtich ROBERT SHAW SP 222E A,R,QT,T,M

24. Pressure Switch Barksdale PlH A,R,M

25. Temperature Element (3) PYC0 300 Series SS INCOMPLETE ,

26. Solenoid Valve (l) ITT Hammel-T. M 502 INCOMPLETE

27. Temperature Element PYC0 N/A A,P,H

28. Guide Tube Valve Assembly GE N/A A,R,H,T,QT~

29. Hydraulic Control Unit (l) .GE 761E500 INCOMPLETE -;

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30. Temperature Element (3) WEED 300 Series INCOMPLETE

31. Flow Transmitter. S&K 91X-16-4-20 A,R,QT,M,H I

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Equipment Description Manufacturer Model Deficiency

32. Steam Turbine Terry Corp. GS-2 A,M

33. Pressure Switch Barksdale D2H A,M,QT,R

34. Diff. Pressure Indicator (3) BARTON 227 INCOMPLETE

35. Temperature Element (3) CalAlloy/Pyco N/S INCOMPLETE

36. Diff. Pressure Transmitter (3) Statham PD 2000 INCOMPLETE

37. Temperature Swtich(3) WEED 22810 INCOMPLETE

38. Temperature Indicator (3) WEED 4900-S-4

- INCOMPLETE

39. Flow Transmitter Rosemont 1152 A,R,QT

40. Level Transmitter Gould Inc. P03018 A,M

41. Dry Tube (3) GE N/S INCOMPLETE

42. Flange (3) GE N/S INCOMPLETE

43. Condensing Chamber (3) GE N/S INCOMPLETE

44. Diff. Pressure Indicating Switch rn.RTON 288 A,R,QT,M

45. Temperature Element (3) Rosemont N/A INCOMPLETE

46. Drywell Penetration Flange (3) GE N/S INCOMPLETE

47. Guide Tube (3) Handy & Harmon N/S INCOMPLETE

48. Check Valve (3) Matheson Co. Inc. N/S INCOMPLETE

NSSS EQUIPMENT (continued)

Equipment Description Manufacturer Model Deficiency

49. Pressure Indicator (3) Robert Shaw 613B INCOMPLETE

50. M0 Gate Valve (3) Limitorque SMB-2-25 INCOMPLETE SMB-3-60 (1) Equipment which the licensee has identified as requiring additional evaluation or qualification documentation.

(2) Equipment located in reactor vessel.

(3) Equipment which may not fall within NUREG 0588 requirements.

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e . u ( . o MISC. B0P & NSSS FROM TABLES 5.4 & 5.5 Equipment Description Manufacturer Model Deficiency (TABLE 5.4)

3. Vacuum Switch Barksdale DIT-hl855 QT,M,A,R,H (Table 5.6)

16. Pressure Indicator Switch (l) Robert Shaw SP-222E INCOMPLETE

19. Pressure Transmitter (l) Bailey 556 INCOMPLETE

20. Flow Transmitter (I) Rosemont 1151 INCOMPLETE

21. Level Transmitter (I) Barton 352/368 INCOMPLETE G

43. Heater Assembly GE 478518673 P,H,A

44. Leakage Control Blower Siemens 2CH6 T,P,M,A

45. Pump Motor Ingersoll Rand 5K6339XC109A P,M

46. Pump Motor Ingersoll Rand SK6347XC59A P,M

47. Pump Motor Ingersoll Rand 5K6357XC8B P,M

48. M.0. Valve Limitorque SMB-00-25 QT,A

49. M.0. Valve Limitorque SMB-4-200 QT,A,R

50. M.0. Valve Limitorque SMB-3-100 QT,A,R

51. M.0. Valve Limitorque SMB-3-80 QT,A,R

52. M.0. Valve Limitorque SB-0-25 QT,A

MISC. BOP & NSSS FROM TABLES 5.4 & 5.5 (continued)

Limitorque SMB-2-60 QT,A

53. M.0. Valve Limitorque SMB-4-150 QT,A

54. M.0. Valve (1) Qualification under NUREG 0588 may not be required.

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APPENDIX B

" SUMMARIES OF LSCS CENTRAL FILE REVIEWS Item: Bailey Pressure Tansmitter (Model 556)

The Bailey pressure transmitter is used to provide the reactor vessel f pressure signal for the post accident monitoring recorder. The transmitter

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is located within the reactor building in zone RB2. Bounding environmental-

qualification parameters are identified as temperature (145*F for one day then 134'F to 100 days), pressure (atmospheric), relative humidity (95%),

and radiation (1.8 x 105 Rads TID). The required operating time within an adverse environment is up to 100 days.

l The audit of the envrionmental qualification documentation indicated

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that this type of unit was exposed to a temperature of 212*F'for six hours.

Qualification for temperature, humidity, and radiation, as well as the U requirement for aging, for the required 100 day operability were by analy-l

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sis only. Qualification time, humidity, radiation, and aging remain as i

concerns resulting from the audit.

Item: Yarway Level Indicating Switch (Model 4418C)

The Yarway level indicating switch is used to sense reactor water level to trip the recirculation pump. The switch is located within the reactor building in zone RB2. Bounding environmental qualification para-meters are identified as temperature (145'F), pressure (atmospheric), rela-5 tive humidity (95%), and radiation (1.8 x 10 Rads TID). The required operating time within an adverse environment is 45 sec.

l Of major concern is the fact that the test report for this item was

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not in the central files. The audit was therefore done on the summary sheet, t.ome documentation present in the file, and the qualification envi-ronment presented in the submittal. The item appears to be qualified for 15

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temperature and humidity. ' Qualification for aging and radiation was by analysis only.

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L Item: SkV Power Cable--Kerite Co.

l The SkV Kerite power cable is used throughout the plant (except con-tainment). The most severe environment is in the reactor building. The abnormal environment is defined as Zone H5. The limiting environmental parameters in this zone are identified as.tempertature (0-6 hr at 212*F),

(6-12 hr at 150*F), and (12 hr-100 days at 150*F);. pressure (0-6 hr at f 7"iH 0), (6-12 hr at 7" H O), 2 and (12 hr-100 days at atmospheric);

2 relative humidity (0-6 hr at steam), (6-12 hr at l'00%), and (12 hr-100 days 6

at 90%); radiation (8.93 x 10 Rad); operability requirements (100 days).

o The audit of the referenced qualification documentation confirmed that this item was exposed to compatible environmental conditions to those indi-cated above. Qualification method was by prototype test and analysis.

l Margin for time remains a concern as results'from the audit. Justification t

I for this concern will be reflected in a future submittal and the test. report will be updated to show the time margin requirement.

Item: Instrumentation Cable--Samual Moore Company This instrumentation cable is used throughout the plant with the con-tainment being the harshest environment. The limiting environmental para-meters are identified as temperature (3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> at 340*F, 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> at 320 F, 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br /> at 250 F, 99 days at 200*F), pressure (-2 to 45 psig for 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, 7

0-25 psig for 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br />, 0-20 psig for 99 days), radiation (4.4 x 10 Rads TID), and . relative humidity (steam /100%). The operability requirement is 100 days.

The audit of the environmental qualification documentation confirmed that this item was exposed to compatible environmental conditions to those indicated above, with slight deviatiun in pressure. The test included pre-

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w aging and electrical energization under test. No margin is demonstrated for operability requirement time or for temperature, and no justification 16

7 is shown for lack of margin. These margins remain a concern and justifi-cation will be previded in the next submitcal.

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. s Item: Gould Inc. Level Transmitter (Model PD 3018)

The Gould level transmitter is used to measure the scram discharge volume water level and signals-the RPS to scram the reactor when the level i is too high. The transmitter is located within the reactor building in zone RBl. Bounding environmental qualification parameters are identified as temperature (145*F), pressure (atmospheric), relative humidity (95%), ,

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! andradiation(1.8x10 RadsTID). The required operating time sithin an adverse environment is one hour.

The audit of the envrionmental qualification documentation confirmed that this type of unit was exposed to environmental conditions which exceeded those listed above by adequate margin; i.e. tem; mature (220'F),-

7 pressure (atmospheric), relative humidity (steam), radiation (2.0 x 10 l'

l Rads TID) and time (three hours). The requirement for aging, however, was by analysis only. The audit indicates that this item is qualified per l

NUREG 0588 Category II with the exception of aging.

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