ML19331B590
| ML19331B590 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 08/11/1980 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8008120473 | |
| Download: ML19331B590 (10) | |
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TENNESSEE VALLEY AUTHORITY CHATTANOOGA. TENNESSEE 374o1 400 Chestnut Street Tower II August 11, 1980 Director of Nuclear Reactor Regulation Attention:
Mr. A. Schwencer, Chief Licensing Branch No. 2 Division of Licensing U.S. Nuclear Regulatory Commission Washington, DC 20555
Dear Mr. Jehwencer:
In the Matter of the Application of
)
Docket Nos. 50-327 Tennessee Valley Authority
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50-328
Reference:
1.
Letter from L. M. Mills to A. Schwencer dated June 16, 1980 2.
Letter from L. M. Mills to A. Schwencer dated July 28, 1980 3.
TVA-NRC-NUREG 0588 Meeting, Krioxville, Tennessee, August 5-6. 1980, TVA Action Item 1 In TVA's response to NUREG-0580 for Sequoyah Nuclear Plant, references 1 and 2, TV.. identified several items which lacked sufficient environmental qualification documentation. Enclosed is the item-by-item justification requested in the TVA-NRC meeting.
Very truly yours, TENNESSEE VALLEY AUTHORITY t
. M. Mills, Manager Nuclear Regulation and Safety Enclosure 30; '
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An Equal Opportunity Employer 80081:e sM' 7 3
ENCLOSURE NUREG 0588 RESPCNSE
SUMMARY
Sumary/
Equipment Description /
Item ID Model No.
NCR/ Statement la/l LT-3-48 Steain Gen. Level NCR SONEEB8006 - Closed LT-3-55 Foxboro E13PM Table 3.11-4, Sheet 15 LT-3-98 Transmitters s'
LT-3-98 lb/l 30A-A, 308-8, Lower Compartment NCR SQNEEB8010 -
30C-A, 30D-8 Vent Fan Table 3.11-4, Sheet 8 Westinghouse No.
S072C38875 30A, 30B-B CRD Coding Fan Table 3.11-4, Sheet 8 30C-A, 300-B Westinghouse No.
S072C38874 lb/2 HS-30-74B Lower Compartment No NCR written. Category "C" HS-30-75B Cooler units.
equipment.
For use in nomal HS-30-77B Square D Co.
environment operation.
HS-30-788 Class 9001 Type K Table 3.11-4, Sheet 9 HS-30-80B CRD Mech Cooler HS-30-83B Units HS-30-88B Square D Co.
HS-30-92B Class 9001 Type K lb/3 TSV-67-84, 92, Lower Compartment No NCR written. Category "C" 100, 108 Vent Cooler equipment. For.use in nomal TSV-67-86, 94, RCP Motor Cooler environment operation.
102, 110 Table 3.11-4, Sheets 3&4 TSV-67-85, 93, CRD Vent Cooler 101, 109 ASCO Model No.
HT8300858RU TS-67-81, 82, 84, CRD Cooler Unit 85, 89, 90, 93, ASCO Model No.
l 94 206-381-3RF 2a/l PSV-65-81, 82 Shield Building NCR'SQNEEB8012 -
Vent & Cont. Annulus Table 3.11-5, Sheet 1 ASCO Model No.
831655 2b/l PS-30-46A, B Pressure Switch NCR SQNEEB8009 PS-30-47A, B Cont. Annulus DP Table 3.11-5, Sheet 2 PS-30-48A, B Barton 288A i
2b/2 PDM-65-80, 82 E/P Modifier NCE.SQNEEB8013 Robertshaw 445 Table 3.11-5, Sheet 2 2c/1 H Monitor H2 Analyzer NCPJ.SQNEEB8014 2
C Model
'Yable3.11-5, Sheet 2, g_
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SQmary/
Equipment '
Description /
Item ID Model No.
NCR Statement 3a/l Solenoid NCR.SQNEEB8007 Valves 3b/l Instrument Rack Ingersol Rand.
NCR SQNEEB8015 for Aux. Air Table 3.11-6, Sheet 4 Compressor 3b/2 FCV-3-il6A, MOV-ERCW HDR NCR -SQNEEB8015 1168, 126A, Isol. Valve Table 3.11-6, Sheet 7 126B Rotark 7A/lRP 3b/3 Emergency H. K. Porter NCR SQNEEB8010 Gen. Treatment Table 3.11-6, Sheet 10 AHU's 3b/4 Spent Fuel Rt H. K. Porter NCR SQNEEB8010 Pump AHU Table 3.11-6, Sheet 10 3b/4 AFW & Borie Acid H. K. Porter NCR SQNEEB8010 Pump AHU's Table 3.11-6, Sheet 11 3b/5 CCW Pump & APW H. K. Porter NCR SQNEEB8010 Pump AHU Table 3.11-6, Sheet 11 3b/6 Aux. Bldg. Gas H. K. Porter NCR SQNEEB8010 Treatment Fan Table 3.11-6, Sheet 11 3b/7 480V Board Rm.
H. K. Porter NCR SQNEEB8010 AHU's y T&ble 3.11-6, Sheet 11 3b/8 Component Cooling B&W NCR SQNEEB8010 System Booster Table 3.11-6, Sheet 11 Pump 3b/9 Containment Spray Sulzer Bros..
NCR SQNEEB8010 Pumps lA-A, 18-B Inc.
Table 3.11,6, Sheet 12 2A-A, 28-B 3b/10 6900V RCP PT NCR SQNEEB8015 Relays Board 1&2 Table 3.11-6, Sheet 12 3b/ll TD AFP DC NCR SQNEEB8015 Vent Fan Starter.
Table 3.11-6, Sheet 12 and Mtr.
3b/12 Press. Htr XFMR NCR SQNEEB8015 1A-A, IB-8, 2A-A, Table 3.11-6, Sheet 12 28-B 3b/13 Aft Pnl L-326 NCR SQNEEB8015 Table 3.11-6, Sheet 12 O
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i Sumary/
Equipment Description /
Item ID Model No.
NCR Statement 3b/14 Press. Htr Dist.
NCR SQNEEB8015 Cab. B/U 1 A-A, Table 3.11-6, Sheet 13 18-B, 2A-A, i
28-B (VRL) 3b/15 CCS Pump Mtr.
DeLavel NCR SQNEEB8010 1A-A, la-B, 2A-A, Table 3.11-6, Sheet 13 28-8, 2C-C 3b/16 Shdn Bd Room H. K. Porter NCR SQNEEB8010 Water Chiller Pkg.
Table 3.11-6, Sheet 13 A-A, B-B 3b/17 Aux. Cont. Air NCR SQNEEB8015 Comp. Motor, Table 3.11-6, Sheet 14 A-A, B-B 3b/18 El 734 A/C NCR SQNEEB8015 Cir Pump Mtr Table 3.11-6, Sheet 14 A-A, B-B
'3b/19 FSV81-12 NCR SQNEEB8015 Table 3.11-7, Sheet 1 3b/20 RHR Pump H. K. Porter NCR SQNEEB8010 Cooler Fan Mtr Table 3.11-7, Sheet 6 3b/21 SIS Pump H.' K. Porter NCR SQNEEB8010 Cooler Fan Mtr Table 3.11-7, Sheet 6 3b/22 Cent. Charging H. K. Porter-NCR SQNEEB8010 Pump Cooler Fan Table 3.11-6, Sheet 6 Motor 3b/23 Pipe Chase H. K. Porter NCR SQNEEB8010 AHU Table 3.11-7, Sheet 6 3b/24 Cont Spray H. K. Porter NCR SQNEEB8010 Pump AHU Table 3.11-7, Sheet 7 3b/25 Emerg. Gas H. K. Porter NCR SQNEEB8010 Treatment Fan Table 3.11-7, Sheet 7 3b/26 Penetration Room H. K. Porter.
NCR SQNEEB8010 Cooler Table 3.11-7, sheet 7 3b/27 Gas Treatment Reliance No.
NCR SQNEEB8010 Syst. Fan Mtr.
3426220803 Table 3.11-7, Sheet 7 A-A, B-B 3b/28 Spent Fuel Pit Inadequate Documentation
- Pump Mtr.
Table 3.11-6, Sheet 13 (A-A,B-B,C-S) 3b/29 FCV-1-15,16,18 Mov-AFW Pump NCR SQNEEB8004 Turbine Supply from SG Table 3.11-8, Sheet 3 Limitorque SMB-00
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Equipment Description /
Summary /
Item ID Model No.
NCR Statement 3b/30 FCV-1-17 MOV. Isol Valve NCR SQ!!EEB800a Limitorque SM-00 Table 3.11-8, Sheet 3
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3b/31 FCV-33-47, 87, Non-IsolValve flCR SQNEEB8004*
100 Limitorque 5 m -4 Table 3.1{-8, Sheets 3&4 NCR SONEEb8003 and 8003RL 3b/32 PT-1-23, 27B Foxboro E11GM MCA Table 3.11-8, Sheet 3 t
3b/33 PT-1-9A, 9B, Stm. Gen. - Main NCR SQNEEB8003 and 8003R1 20A, 208 Stm Hdr Press.
. Table 3.11-8, Sheet 4 Foxboro EllGM MCA 3b/34 FCV-74-33, 35 RHR Ht Exch Item Listed previously as "0 PEN."
A&B Bypass MOV Evaluation of Test Reports shcws Limitorque SMB-1 item qualified per NUREG 0588.
Table 3.11-8, Sheet 5 Jb/35 CV-62-138 Emerg Borating Sameas Item 3b/34 Flow Control VLV. Table 3.11-8, Sheet 7 MOV Limitorque SMB-00-15 3b/36 FCV-63-93 RHR Pump A-A Same as Item 3b/34 and B-B Discharge Table 3.11-8, Sheet 8 Limitorque SMB-3-80 3b/37 FCV-63-94 To Bld Legs Same as Item 3b/34 1-2-3&4 MOV Table 3.11-8, Sheet 8 Limitorque SMB-3-80 3b/38 FCV-62-98, C9 Changing Pu=p Same as Item 3b/34 Min. Flow MOV Table 3.11-8, Sheet 8 Limitorque S2-00-25 3b/39 FCV-63-1 RWST to RHR Same as Item 3b/34 Pump Flow Control Table 3.11-8, Sheet 9 Limitomue SMB-2 3b/40 FCV-63-3 SIS DMP Disch Same as Item 3b/34 I
to RWST Shutout Table 3.11-8, Sheet 9
- VIV, Limitorque 52-00-25 3b/41
'FCV-63-5 Rwst to SIS Pmp Same as Item 3b/34 FCV Table 3.11-8, Sheet 9 Limitorque SMB-00-10
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5 Sumnary/
Equipment Description /
Item ID Model No.
NCR Statement 3b/41 FCV-63-6, 7 SIS Pump Inlet Same as Item 3b/34 to CVCS CHR Pmp Table 3.11-8, Sheet 9 3b/42 FCV-63-t', 11 miR Htx A to Same as Item 3b/34 CVCS Charge Table 3.11-8, Sheet 9 Pmp and RHR HTXB to SIS x
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- Supplemental Information 3b/28 - The spent fuel pit pump does not have a direct LOCA-mitigating function. However, in the event of an accident, degradation of spent fuel pit pump performance could result in a temperature problem ith the spent fuel pool that, because of personnel restrictions created by the accident, could not be corrected.
For the interim, the "in-site" equipment is acceptable since no spent fuel has been stored. However, to correct this situation, TVA will, by the first refueling outage, provide analyses which verify that the equipment is qualified, or repair and/or replace, as required.
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6 Equic ent Affected Actien Required for Resolution NCR SCNEE38003 Foxboro Pressure Trans-Trans=itters have been replaced
=itters in Main Steam with qualified equip:ent.
Valve Roc:s SCNEE38004 Miscellaneous Class-lE The equip =ent covered by this NCR has, Equip ent in Main Steas en a case-by-case basis, been evaluated Valve Ecc=s (valves, to deterline if their operation was tranc=itters, switches, essential to plant safety. As a result, and junctica box wiring pressure siitches associated with sc e of the valves in the main steas valve roo:s were identified accordingly. These switches have been relocated away fecm the adverse envircnnent. Also, the =otor-operated valves in these cc part ents were criginally found to have inadequate docu=entatica to justify operation in the accident te:perature envircnnent.
The vender has new analyzed the subject equip ent for the higher te=peratures and has confir:ed, by letter, that the valves under the postulated accident conditions will perform their intended functicn. As for the equip =ent rot replaced, T7A has evaluated each cc penent and has deter =ined that the failure of these itens to perfor= their intended function dees not affect any associated ce related plant safety function.
SCNEE38005
- dide Range Steam Trans=itters have been replaced with Generater Level Trans-qualified equipment.
=itters SCNEE38007 Miscellaneous Centai.=ent The solenoid valves have, en a case-Ventilaticn and EGIS by-case basis, been evaluated te Solenoid Valvcs determine if their operation was essential to plant safety. Fro 2 this list, eight solenoids were identified accordingly. These valves were replaced price to initial criticality with qualified equip =ent.
TVA has evaluated the re aining solenoid valves that were not replaced and has dete: ::ined that the failure of these ite=s to perfors their intended functicn does not affect any asscelated ce related plant safety function. Hcwever, TVA will replace
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these solenoids in the near future to improve plant operational capability.
SQNEEB8008 Local Centrol Station This equip =ent was identified as Selection Switches (C-H nonconforming under the criteria type 10250T), located provided in section 2.1.6(b) of NUREG-in the following areas:
0578. The failure of this equipment
- 1. Vertical pipe chat ' EL to function in an adverse environment 653,699,690, and 714.
does not a.*ect any associated or
- 2. Aux feedwater pu=p related plano safety function, turbine room EL 690.
Therefore, this equipment, using
- 3. RHR heat exchanger NUREG-0588 guidelines, meets category room EL 690 "C" requirements.
- 4. Gas stripper room EL 669
- 5. RHR pump room EL 653 SQNEEBSC09 Pressure Switches (tag Unqualified components have been Nos. PS-30-46A & B, replaced to upgrade switch qualifi-
-47A & B, and -48A & B) cation to an acceptable level.
SONEEB8010 Class 15 motors:
Preliminary vendor test data in addition to analysis by TVA provides Emergency Gas Treatment justification for continued plant Air Handling Unit (AHU) operation until additional vendor Spent Fuel Pit AHU data has been received. Final RHR Pu=p Cooler verification of equipment qualification SIS Pump Coole' AHU will be accomplished within the time Cent. Charging Pump AHU schedules provided in NUREG-0588.
AFW and Boric Acid Pump AHU CCS Pump and AFW Pump AHU Pipe Chase AHU Penetration Room Coolers 480-Volt Board Roca AHU Aux Building Gas Treatment TVA has analyzed this equipment and Fan determined that, as a minimum, they will Emergency Gas Treatment perform the required safety functions Fan under the postulated harsh environments through the first fuel cycle. 'Addtional vendor data is being obtained to verify the actual equiment service life. By November 1, 1980, TVA will determine the actual equipment service life and, if required, a schedule for replacement.
Lower Compartment AHU See response to NRC SQNEEB8008.
CRD Mechanism AHU SQNEEB8011 Solenoid Valve FSV-70-85 See response to NRC SQNEEB8008.
SQNEEB8012 Solenoid Valves PSV Valves have been replaced with qualified 81 and -83 solenoids.
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SQ: EEB8013 I/P Transducers PSM-Equipment will be relocated in nonhostile 65-80 and -82 environment. This work is presently in progress and has a milestone completion requirement to be finished before the plant prepares to exceed 5%
power.
SQNNEB8014 Hydrogen Menitoring The radiatien environment for this System (Annulus Area equip =cnt has been redefined to Only) consider plant-specific equipment locaticn. The radiation levels have been calculated in accordance with the requirements in NUREG-0588. Using this data, we have determined that the "in situ" equipment is qualified for the environment. However, autoclave testing on similar components is being pursued to further verify acceptability of equipment.
SONEEB8015 Components
- 1. DC Vent Fan Motor See response to NRC SQNEEB8008.
and Starter
- 2. Auxiliary Air The equipment vendor has confirmed that Compressor Motor and that the components are designed to Instrument Rack perform their intended function in the hostile environment. In addition, TVA is pursuing equipment testing to further verify acceptability of equipment.
3 6900V RCP PT and Relay Boards 1&2
- 4. Pressurizer Heater See response to NRC SQNEEB8008.
Transformers
- 5. Pressurizer Heater Distribution Cabinet CVRL
- 6. Turbine-Driven Auxiliary See response to NRC SQNEEB8008 Feedwater Instrument Panel
- 7. EL734 A/C Circulation Preliminary vendor test data in addition Pump Motors to analysis by TVA provides justification for continued plant operation until additional vendor data has been received.
Final verification of equipment qualification will be accomplished within the time schedules provided in NUREG-0588.
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- 8. FSV-81-12 (Solenoid See respone to NRC SQUEEB8008.
Valve)
- 9. Rotork MOB Model This component has been determined to 7A/1RP be a "Limitorque" operator. Adequate qualification documentation is available for this equipment.
SQNQE38002 Exposed Safety-Related Cables have been wrapped with lead Cables Inside shielding sufficiently thick to protect Containment them feca post-LOCA radiation doses.
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