ML17298B682
| ML17298B682 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 12/18/1984 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Knighton G Office of Nuclear Reactor Regulation |
| References | |
| RTR-REGGD-01.075, RTR-REGGD-1.075 ANPP-31526-EEVB, NUDOCS 8412200266 | |
| Download: ML17298B682 (17) | |
Text
DOCKET' 05000528 05000529 05000530 REGULATOR NFORMATIOII DISTRIBUTION TEM (RIDS)
ACCESSION NBR:8412200266 OOC ~ DATE; 84/12/18 NOTARIZED:
YES FACIL:STN-50 528 Palo Verde Nuclear Stationi Unit ii Arizona Publi STN-50-529 Palo Verde Nuclear Stationi Unit 2~ Arizona Publ,i STN-50-530 Palo Verde Nuclear Stationi Unit 3~ Arizona Publi AUTH,NAME AUTHOR AFFILIATION VAN BRUNTiEiE.
Arizona Public'ervice Co ~
RECIP,NAME RECIPIENT AFFILIATION KNIGHTONiGr N ~
Licensing Branch 3
SUBJECT; Forwards addi info L mods to 84121?.
L 17 1 trs to GH Knighton in order to satisfy separation concerns-re Reg Guide 1,75
'esults of, tests concluded that criteria of IEEE Std 384satisfactorily
- met, DISTRIBUTION CODE:
B001D COPIES RECEIVED:LTR g ENCL SIZE:f, /O TITLE: Licensing Submittal:
PSAR/FSAR Amdts 8 Related Correspondence NOTES:Standardized plant ~
Standardized plant ~
Standardized
- plant, 05000528 05000529 05000530 RECIPIENT ID CODE/NAMF NRR/DI /AOL NRR LB3 LA INTERNAL: ACRS 41 ELO/HDS3 IE/OEPER/EPB 36 IE/DQASIP/QAB21 NRR/DE/AEAB NRR/DE/EHEB NRR/DE/GB 28 NRR/DE/MTEB 17 NRR/DE/SGEB 25 NRR/DHFS/LQB 32 NRR/OL/SSPB NRR/OSI/ASB NRR/OSI/CSB 09 NRR/DS I/METB 1?
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Arizona Public Service Company ANPP-31526-EEVB/WFQ/TFQ December 18, 1984 Director of Nuclear Reactor Regulation Mr. George W. Knighton, Chief Licensing Branch No. 3 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Units 1, 2, and 3
Docket Nos.
STN 50-528/529/530 Electrical Separation (R.G. 1.75)
File: 84-056-026 G.1.01.10 84-019-026
References:
(1)
(2)
(3)
Letter from E. E.
Van Brunt, Jr.,
APS, to G.
W. Knighton, NRC, dated December 12, 1984 (ANPP-31443);
Subject:
Electrical Separation-(R.G.
1.75).
Letter from E. E.
Van Brunt, Jr.,
APS, to G.
W. Knighton, NRC, dated December 17, 1984 (ANPP-31492);
Subject:
Electrical Separation-(R.G.
1.75).
Letter from A. E. Scherer, CE, to D. G. Eisenhut, NRC, dated December 5,
1984 (LD-84-070).
Dear Mr. Knighton:
Based upon discussions with your staff on December 14 and 17,
- 1984, APS is providing the following additional information and modifications to Reference (1) and (2) in order to satisfy separation concerns related to Regulatory Guide 1.75:
Insert (B) to page 8.3-84 of Reference (1) (separation between CEDM power feeders and CEDM reed switch position transmitters) is being deleted as the installed configuration meets the separation criteria of Regulatory Guide 1.75.
As the CEDM power feeders are tripped on SIAS, the plant meets the requirements for proper isolation associated circuits.
Regarding insert (A) to'page 1.8-55 (mineral insulated stainless steel sheathed cable); this radiation monitoring cabling is low energy and the Reference (2) analysis provided as item 3.E (see page 3) is applicable to this cabling.
Accordingly, item 4.5 of insert (A) to page 8.3-34 of Reference (1) already covers this particular installation.
The abstract
- scope, method and conclusion for the plant protection system cabinet separation analysis and testing referred to by the Reference (3) change to CESSAR Section 7.1.2.10 are enclosed.
Reference 2.1 given in the Conclusion is CE Specification No. SYS80-ICE-3001, Revision 01 which involves the requirements of IEEE STD. 384.
The enclosures define the information related to the scope of testing and applicable acceptance criteria.
Based on the results of these tests it is concluded that the criteria of IEEE STD. 384 are satisfactorily meet.
Thus by virtue of these tests it is concluded that the isolation device, maintain the independence of the safety channels.
84l2200266 841218 PDR ADOCK 05000528 A
PDR g
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.Mr. G.
W. Knighton Electrical Separation (R.G. 1.75)
ANPP-31526 Page 2
H you have any questions regarding this material please contact Mr. William Quinn of my staff.
Very truly yours, gcULR E. E.
Van Brunt, Jr.
APS Vice President Nuclear Production ANPP Project Director EEVB/TFQ/mb Enclosure cc:
E. A. Licitra (w/a)
A. C. Gehr (w/a)
R. P.
Zimmerman (w/a)
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b ANPP-31526 STATE OF ARIZONA
)
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COUNTY OF MARICOPA)
I, Edwin E.
Van Brunt, Jr.,
represent that I am Vice President, Nuclear Production of Arizona Public Service
- Company, that the foregoing document has been signed by me on behalf of Arizona Public Service Company with full authority to do so, that I have read such document and know its
- contents, and that to the best of my knowledge and belief, the statements made therein are true.
Edwin E.
Van Brunt, Jr.
Sworn to before me thie~gdey o
e b
r I
r My Commission Expires:
My Commission Expires April 6, )ypy 1984.
Notary Publ
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PLANT PROTECTION SYSTEM Fault Isolation Teqt Report 1.0 ABSTRACT The PLANT PROTECTION SYSTEM (PPS),
Electro-Mech-anics, Inc., Assembly 833100, operates as intended by Ref-erence.
2.1, during exposure to fault voltages of 600 VAC (RMS) or 400 VDC.
Tests were performed on a com-ponent and/or subassembly level using aged and qualified components where applicable.
Testing of the PPS isolation components were performed by Electro-Mechanics, Inc. at their test facility in New Bri-tain, Connecticut.
The test was completed on November 16, 1982 TS 6441-4
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8 3 '
SCOPE The objective of this test was,to demonstrate t'e ability of the PPS Assembly to prevent the propagation of a
480 VAC or 325 VDC fault between channels or between 1E and non-1E circuits.
This was accomplished by applying the fault voltages to the following isolation components and circuits:
1)
Bistable/Aux/Matr ix Relay Card Assy.,
EM P/N 33335 (Uses Douglas-Randall P/N 377043 Relays) 2)
Initiation Relays a.
Pot ter-Brumfield P/N R10-E1-X2-S800 b.
Potter-Brumfield P/N KR3DH12 c.
Potter-Brumfield P/N KA11DG12 3)
Bypass Relay, Potter -Brumfield P/N R10-E1-L6-S320 4)
Channel In Test and Test Interlock Relays, Potter-Brumfield P/N R10-E3-X4-V185 5)
Power Supply Fault Isolation Clamp Circuit 6)
Matrix Power Supply, Todd P/N MBS12-3.2 7)
Bistable Power
- Supply, Todd P/N SW12-75 8)
Sola Transformer 023-13-060-2 All tests were performed.on circuit mockups using identi-cal aged and qualified components as utilized in the PPS.
The wire used for the test circuits 'was of the same type size and manufacturer as was used in the PPS.
Rev.
A TS 64
References 2.15 and 2.16 specify and repor t the results of Bistable and Matrix Mock-Up Fault Isolation and,.Surge.
Withstand testing performed on
~a simulated RPS system.
The circuit tested included interconnected simulated vital busses, power supplies, bistables, bistable relays and matrix relays.
The components and configuration were similar to those tested and reported here and used in the PPS.
The results are therefore applicable to demonstrate that the component level testing presented herein provides valid proof of PPS fault isolation capability.
Rev.
TS 6441-4 Page 4a cont.
on
4.3.2.27 Power Supply Fault Isolation'Clamp Circuit, Bistable Fault A Co~figuratXoa~esk:
Reverse Polari-ty 4.3.2.28 Power. Supply Fault Isolation Clamp Circuit, Bistable Fault B Configuration Test: Straight Polarity 4.3.2.29 Power Supply Fault Isolation Clamp Circuit, Bistable Fault B Configuration Test:
Reverse Polarity 4.3.2.30 Power Supply,,
Todd P/N MBS12-3.2:
Transverse Mode Test Applied To Output 4.3.2.31 Power
- Supply, Todd P/N MBS12-3.2:
Common Mode Test Applied To Output 4.3.2.32 Power Supply, Todd P/N SW12>>75:
Transverse Mode Test Applied To Output 4.3.2.33 Power
- Supply, Todd P/N SW1'2-75:
Common Mode Test Applied To Output 4.4 MONITORING PERFORMANCE CRITERIA (The following i's a synopsis..
Refer to APPENDIXES I, III, V and VII for detailed descriptions of the moni-toring setups and acceptance criteria.)
4.4.1 Insulation Test Prior to and after completion of the required fault tests, the insulation resistance was measured between all isolated circuits (i.e., contact-to-coil and contact-to-contact, input TS 6441-4
to output and output to chassis).
Acceptance cri-teria was that in each case the insulation resistance was greater'han 10MQ for all relays and power sup-plies.
4.4.2 Common Mode Test Current flow across the isolator was monitored by means of an oscillographic recorder during each application of fault voltage.
(Refer to appropriate figures for each device in APPENDIXES I, III, V and VII.)
Acceptance criteria was no indi-cation of current flow.
J Prior to performance of any
- testing, equivalent insulation resistance reference charts were made to indicate recorder chart deflection for the values of 10MQ and 5MQ insulation resistances.
The reference charts were obtained by placing a
10MQ resistor ac>o'ss the boundary to be measured (i.e., contact to coil, applying the fault voltage).
The resulting recorder deflection indicated the amount of current flow across the isolator if the insulation resistance decreased to 10MQ.
The same procedure was performed with. a 5MQ resistance.
4.4.g Transverse Mode Test The secondary components (i.e., monitoring of the coil when the contact was faulted) were monitored by means of an oscillographic recorder during each application of fault voltage.
Refer to appropriate figure for each device in APPEN-DIXES I, III, V and VII.
Acceptance criteria was that no voltage indication appear across the isola-tior boundaries (i.e., deflection on recorder chart monitoring the nonfaulted component).
TS. 6441-4 Page 14 cont.
on 1S
Prior to performance of each series of fault tests (i.e.,
performanoe oF all 600 VAC tests),
the TE-273N Fault Test 'Set 'was o'alibFate~o ensure that
'1 it was capable of delivering 50 amps fault cur r ent.
Visual A visual examination of the assembly was performed after each test performed.
Acceptance cri-
- teria, however, was no evidence on the chart of fault transmission.
TS 6441-4 Page 15 cont.
on 16
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6.0 CONCLUSION
On the basis of measurements and observat'rva ions made prior to dur ing and following subject".ion of the isolation devices of the PPS to the fault t t
es requirements of APPENDIXES I III V and VII, it has been concluded that the PPS meets all the fault isolation re n
requir ements as defined in Reference 2.1.
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