ML20024D083
| ML20024D083 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 07/25/1983 |
| From: | Sestak F STONE & WEBSTER ENGINEERING CORP. |
| To: | |
| Shared Package | |
| ML16341B996 | List: |
| References | |
| NUDOCS 8308030142 | |
| Download: ML20024D083 (33) | |
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STONE 8 WEBSTER ENGINEERING CORPORATION I 245 SUMMER STREET. BOSTON, M ASSACHU SETTS ADORESS ALL CORRESPONDENCE TO P.O. BOX 2325. BOSTON. M ASS. 02107 W U TELEX: 94 0001 N O R fC C NSTRUCTION CHERRY MILL N J. REPORTS DENVER EI AMINATIONS CHIC A GO CONSULTING MOUSTON ENGINf tRING W ASHINGTON. O C.
Mr. G. A. Maneatis, Executive Vice President July 28, 1983 Facilities Development J.O. No. 14296 !
Pacific Gas and Electric Company DCS-497 l 77 Beale Street San Francisco, CA 94106 Mr. H. R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission 7920 Norfolk Avenue Bethesda, MD 20114 Mr. J. B. Martin, Regional Administrator Region V U.S. Nuclear Regulatory Commission 1450 Maria Lane, Suite 210 Walnut Creek, CA 94596 Docket No. 50-275 Diablo Canyon Unit 1 License No. DPR-76 SWEC INTERIM TECHNICAL REPORTS Gentlemen:
Attached are Interim Technical Report, Number 14, Revision 2, entitled
" Verification of the Pressure, Temperature, Humidity, and Submergence Environments used for Safety-Related Equipment Specification Outside Containment for Auxiliary Feedwater System and Control Room Ventilation andPressurizationSystem"andInterimTechnicalReport,[ Number 28.}
Revision 2, entitled " Verification of the Instrument ana control Des'ign of the Control Room Ventilation and Pressurization System."
Very truly yours, J.
J C. %
. Krechring p
Project Engineer, Diablo Canyon Nuclear Power Plant enclosure cc: RRFray (45) MJStrumwasser ACGehr RFReedy DFFleischaker ENorton ETDenison JRReynolds RHubbard WECooper (10) JRPhillips JRoesset HSchierling (40) MAxelrad 8308030142 830728 PDR ADOCK 05000275 P PDR
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PACIFIC GAS & ELECTRIC COMPANY ;
DIABLO CANYON NUCLEAR POWER PLANT t
INDEPENDENT DESIGN VERIFICATION PROGRAM r
L r INTERIM TECHNICAL REPORT NO. 28 L
REVISION 2 r'
L VERIFICATION OF THE INSTRUMENT AND CONTROL DESIGN OF THE CONTROL ROOM VENTILATION AND FRESSURIZATION SYSTEM PERFORMED BY STONE & WEBSTER ENGINEERING CORPORATION DOCKET No. 50-275 LICENSE NO. DPR-76 t
PROJECT MANAGER: V l
. DATE: 7/7I/I3
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F. Sestak, Jr.
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PROGRAM MANAGER'S PREFACE DIABLO CANYON NUCLEAR POWER PLANT - UNIT I INDEPENDENT DESIGN VERIFICATION PROGRAM INTERIM TECHNICAL REPORT VERIFICATION OF THE INSTRUMENT AND CONTROL DESIGN l OF THE CONTROL ROOM VENTILATION AND PRESSURIZATION SYSTEM This is revision 2 to the twenty-eighth of a series of Interim Technical Reports prepared by the DCNPP-IDVP for the purpose of providing a conclusion of the program.
This report provides a description of the work done, summary and f evaluation of the results, and reconnendations of the IDVP with respect to the initial sample.
As IDVP Program Manager, Teledyne Engineering Services has approved this ITR including the conclusions and reconmendations. The methodology followed by TES in performing this review and evaluation is described by Appendix C to this report.
ITR Reviewed and Approved IDVP Program Manager Teledyne Engineering Services LJJ
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A Wg D. C. S ratouly Assistant Project Manager I .
l TABLE OF CONTENTS r
Section Title Pa;f 1 INTRODUCTION............................................... 1-1 2 DEFINITION OF ITEMS REVIEWED............................... 2-1 2.1 SYSTEM MONITORING.......................................... 2-1 2.2 SYSTEM CONTR0LS............................................ 2-1 2.3 DESIGN AND LICENSING DOCUMENT REVIEW....................... 2-1 2.4 INSTRUMENT AND CONTROL INSTALLATION........................ 2-2 2.5 ENVIRONMENTAL QUALIFICATION OF CLASS IE INSTRUMENTS........ 2-2 2.6 INSTRUMENT APPLICATION..................................... 2-2 2.7 PROCESS PARAMETER LIMITS FOR INSTRUMENT SETTINGS........... 2-2 3 DESCRIPTION OF REVIEW...................................... 3-1 3.1 SYSTEM M0NITORING.......................................... 3-1 3.2 SYSTEM CONTR0LS............................................ 3-2 3.3 DESIGN AND LICENSING DOCUMENT REVIEW....................... 3-2 3.4 INSTRUMENT AND CONTROL INSTALLATION........................ 3-3 3.5 ENVIRONMENTAL QUALIFICATION OF CLASS IE INSTRUMENTS........ 3-3 3.6 INSTRUMENT APPLICATION..................................... 3-4 3.7 PROCESS PARAMETER LIMITS FOR INSTRUMENT SETTINGS........... 3-4 4
SUMMARY
OF REVIE'd RESULTS.................................. 4-1 4.1 SYSTEM M0NITORING.......................................... 4-1 4.2 SYSTEM CONTR0LS............................................ 4-2 4.3 DESIGN AND LICENSING DOCUMENT REVIEW....................... 4-3 4.4 INSTRUMENT AND CGNTROL INSTALLATION........................ 4-4
( 4.5 ENVIRONMENTAL QUALIFICATION OF CLASS IE INSTRUMENTS........ 4-4 4.6 INSTRUMENT APPLICATION..................................... 4-5 4.7 PROCESS PARAMETER LIMITS FOR INSTRUMENT SETTINGS........... 4-6 5 E0I REPORTS ISSUED......................................... 5-1
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TABLE OF CONTENTS (CONT)
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Section Title Page 6 EVALUATION OF REVIEW RESULTS............................... 6-1 6.1 SYSTEM MONITORING.......................................... 6-1 6.2 SYSTEM CONTR0LS............................................ 6-1 6.3 DESIGN 4ND LICENSING DOCUMENT REVIEW....................... 6-2 6.4 INSTRUMENT AND CONTROL INSTALI ATI0N. . . . . . . . . . . . . . . . . . . . . . . . 6-2 6.5 ENVIRONMENTAL QUALIFICATION OF CLASS IE INSTRUMENTS........ 6-3 6.6 INSTRUMENT APPLICATION..................................... 6-3 6.7 PROCESS PARAMETER LIMITS FOR INSTRUMENT SETTINGS........... 6-3 g
7 CONCLUSIONS.... ........................................... 7-1 7.1 SYSTEM M0NITORING.......................................... 7-1 7.2 SYSTEM CONTR0LS............................................ 7-1 7.3 DESIGN AND LICENSING DOCUMENT REVIEW....................... 7-1 i
7.4 INSTRUMENT AND CONTROL INSTALLATION........................ 7-2 l
7.5 ENVIRONMENTAL QUALIFICATION OF CLASS IE INSTRUMENTS........ 7-2 7.6 INSTRUMENT APPLICATION..................................... 7-1 7.7 PROCESS PARAMETER LIMITS FOR INSTRUMENT SETTINGS........... 7-2 APPENDIXES A REFERENCES B E0I FILES C PROGRAM MANAGER'S ASSESSMENT ii
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SECTION 1 INTRODUCTION i
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An Independent Design Verification Program (IDVP) review was performed for 1 i l
the safety-related instruments and controls associated with the Control Room
- Ventilation and Pressurization (CRVP) System for Pacific Gas and Electric l
Company's (PG&E) Diablo Canyon Nuclear Power Plant Unit I (DCNPP-1). The i
review was performed in accordance with the Stone & Webster Engineering Corporation (SWEC) Scope of Work defined in Appendix D (DCNPP-IDVP-PP-002) of the IDVP Phase II Program Management Plan issued by Teledyne Engineering 1.
Services (TES) as IDVP Program Manager. The following sections provide a description of the methods, results, and evaluations associated with this
' independent design verification.
I For verification of the Instrument and Control (I&C) design of the CRVP System, a wide range of documentation was reviewed. This documentation consisted of the following:
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- Chapters 3, 7, 8, and 9 of the FSAR
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- 60 PG&E/NRC Letters
- PG&E's Environmental Qualification Report
- 4 Equipment Specifications
- 1 Installation Specification
- .83 Drawings Including Electrical, Mechanical, Instrumentation, and Logic Diagrams.
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The review was divided into four areas:
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- Licensing Document Compliance
- System Design
- Field Verification
- Environmental Qualification Adequacy.
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This review permitted the IDVP to obtain a thorough understanding of the plant as-built design relative to the licensing basis for the CRVP system instruments and controls, t.
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f SECTION 2 DEFINITION OF ITEMS REVIEWED i
2.1 SYSTEM MONITORING The CRVP System was reviewed to determine if adequate monitoring of the system was provided in the control room for all four design modes of operation.
I 2.2 SYSTEM CONTROLS h
Operator controls, automatic control logic, and hardware were evaluated for i
the ability of the system to meet all the requirements of the licensing documents. System instrumentation and controls reviewed include locally-mounted sensors and controlling devices, panel-mounted instruments and controls, and auxiliary devices, such as relays.
2.3 DESIGN AND LICENSING DOCUMENT REVIEW
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Licensing documents, including the Final Safety Analysis Report (FSAR) and PG&E letter responses to NRC questions and subsequent directives, were reviewed to determine the applicable licensing commitments. Design documents, including logic diagrams, schematic drawings, and wiring diagrams for the control systems were reviewed to evaluate the CRVP system design for conformance to the applicable licensing commitments.
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2.4 INSTRUMENTATION AND CONTROL INSTALLATION i
Installation drawings were reviewed for conformance to the licensing commit-ments, as well as to determine the adequacy of the control system design and compliance with vendor requirements.
t 2.5 ENVIRONMENTAL QUALIFICATION OF CLASS IE INSTRUMENTS l Safety-related instruments and control equipment in the CRVP System were identified and their locations verified by field inspection. The environ-mental qualification of the equipment was evaluated with regard to the postulated environment at the actual installed locations.
2.6 INSTRUMENT APPLICATION The -instrumentation associated with the CRVP System was reviewed to deter-
! mine the suitability for its application in monitoring and controlling the process for all operating conditions.
- 2.7 PROCESS PARAMETER LIMITS FOR INSTRUMENT SETTINGS CRVP system instrumentation was reviewed for compatibility of set points with the anticipated process operating conditions.
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I SECTION 3 DESCRIPTION OF REVIEW ,
K The review of the CRVP System was initiated by reviewing ITR No. 29, i
entitled " Design Chain-Initial Sample" to determine the internal PG&E i
engineering groups and service-related contractors involved in the design of the instrumentation and controls for the CRVP System. The results of this review identified EDS Nuclear Corporation as the service-related contractor and the Instrumentation Group within the Mechanical Group, the Electrical Group, and the Civil Group as the appropriate PG&E engineering groups.
I The applicable licensing documents were identified and reviewed. The system flow diagrams were reviewed to obtain a functional understanding of the system operating requirements. The detailed review described in the follow-ing sections was then conducted to determine if the CRVP system licensing j commitments were satisfied.
-3.1 SYSTEM MONITORING Equipment status monitoring provisions were reviewed for fans, dampers, and other mechanical equipment in the CRVP System using the electrical schematic diagrams and the main control board arrangement drawings. Monitoring provisions for air flow, chlorine, and radiation were also reviewed for com-pliance with licensing documents using the instrument schematic diagrams, instrument rack drawings, and main control room arrangement drawings.
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3.2 SYSTEM CONTROLS i Control logic hardware was reviewed by obtaining manufacturer's information from control panel drawings and comparing the' system requirements with data i from the manufacturer's catalogs. The digital logic system that controls 1
s the CRVP - System was reviewed for all modes of operation to determine that the requirements of FSAR Section 9.4.1 were fulfilled.
I 3.3 DESIGN AND LICENSING DOCUMENT REVIEW i
The review of the design and licensing documents included the FSAR and the h
i various industry standards identified in the FSAR as design - criteria, as well as the applicable Regulatory Guides and sections of the NRC Standard ~
( Review Plan. This review defined the scope or boundary of the safety- l related portion of the CRVP System.
1 L-f The electrical power supplies for safety-related instrumentation and control circuits were reviewed using the instrument schematic diagrams, electrical t
[ schematic diagrams, and electrical one-line diagrams. Redundant controls j' and equipment were reviewed to ensure they are powered from different Class IE power sources. The operator interface with the system was reviewed by examining the main control board arrangement drawings, electrical schematic diagrams, and local panel drawings. The control logic was reviewed by exam-L ining the logic diagrams, instrument schematics, and electrical schematics to determine that the automatic safety-related functions described in FSAR i
Section 9.4.1 were implemented in the design of the control system and the 3-2 1
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f selection of the control hardware. The system was also reviewed to deter-mine if it contained provisions which permitted the operator to manually override automatic safety functions.
3.4 INSTRUMENT AND CONTROL INSTALLATION l l
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Air-conditioning duct drawings and equipment arrangement drawings were reviewed to determine that the actual locations of the instruments were the same as shown diagrammatically on the air-conditioning flow diagram.
k Additionally, instrument schematic and installation detail drawings were re-viewed to determine if instrumentation used in the CRVP System was adequate.
l The actual installation details were reviewed during a field inspection.
Also reviewed during the field inspection were the physical separation of redundant safety-related instrumentation and control wiring within panels and cabinets.
. 3.5 ENVIRONMENTAL QUALIFICATION OF CLASS IE INSTRUMENIS f A list of safety-related (Class IE) instrumentation was compiled for the CRVP System. These instrument locations, along with their postulated environments, were reviewed in order to establish applicability of
) environmental qualification data for instruments located in potentially I
severe environments.
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! -- 3.6 INSTRUMENT APPLICATION Sa fety-rela ted instrumentation was reviewed to determine if it was i functionally applied in accordance with manufacturer's recommendations. The physical locations of the instruments in the CRVP System were reviewed to
- ensure they were installed according to the manufacturer's specifications.
This instrumentation includes the chlorine detectors and radiation monitors I
at both the normal and emergency air intakes for the control room and the air flow monitoring devices within the contro1 room pressurization portion of the system.
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3.7 PROCESS PARAMETER LIMITS FOR INSTRUMENT SETTINGS The PG&E set point list was reviewed to determine CRVP system instrument set points. CRVP set point information was not included on the list at the time of this review so manufacturer's data for the overall process ranges
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SECTION 4
SUMMARY
OF REVIEW PISULTS i
4.1 SYSTEM MONITORING l
The following monitor lights are provided on section VB-4 of the main con-trol board:
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- CRVP system op2 rating mode (4 lights--I for each design mode)
- Status indication for fans, dampers, and heaters in the control room pressurization system
- Status indication for the control roon isolation dampers I
- Equipment failure indication for fans and dampers in the control l
room pressurization system I
- Equipment failure indication for the control room isolation dampers.
i Some of the above indications are also provided on various panels and cabinets in the CRVP mechanical equipment room.
l Chlorine and radiation monitoring equipment for both Unit I and Unit 2 normal and emergency air intakes is mounted in a common rack in the Unit 2 L
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control room. These instruments contain indication and status lights for annunciation of high levels of contaminants.
i 4.2 SYSTEM CONTROLS The automatic control system that places the CRVP System in the appropriate safety-related mode of operation is fully redundant. Each control system is made up of electromagnetic relays that are located in panels in the mechanical equipment room and the main control room.
I The control room operator's interface consisted of two control switches on section VB-4 of the main control board and the monitoring devices referenced in Section 4.1 above. The first of the two control switches selects which redundant set of equipment will be used to operate the CRVP System. This switch was connected to both sources of redundant power and may have sub-jected the CRVP System to a common failure mode. PG&E completed a modifica-f tion that added a redundant control switch which eliminates this potential failure.
1 The second control switch enables the operator to select one of the four operating modes of the CRVP System. There are other control switches on local equipment panels for test and maintenance purposes. If these test and maintenance switches are moved from the setting which connects the equipment to the automatic control system, it is annunciated in the main control room.
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i 4.3 DESIGN AND LICENSING DOCUMENT REVIEW During the initial review of the control system drawings, it was found that safety-related instrumentation was not designated as Design Class I on all drawings. PG&E provided additional information that demonstrated that this was not a concern because the disagreement between drawings was attributable to a draf ting error. They further provided documentation that showed the I
equipment in question was purchased and installed as Design Class I.
The electrical and mechanical aspects of the CRVP control system were re-j viewed using the drawings issued by the PG&E Civil Group, Electrical Group, and Instrumentation Group. The functional design of the CRVP System com-plies with the commitments set forth in Section 9.4.1 of the FSAR. Two completely redundant automatic control systems are provided for the CRVP system equipment. Each train is powered from a separate safety-related j source of power. Because some safety-related equipment in the CRVP System is shared between units, it may be powered from either Unit 1 or Unit 2.
There was a concern that the control room pressurization fans' control cir-cuit design was such that the controls may not have been powered from the same source of power as the fan motors themselves. When the source of power was selected for the pressurization fans, the source of control power for
/ each particular fan also had to be selected so that it would be related to the same cource of power as the fan motor because if it is not, the loss of one bus (control power) may cause failure of equipmcat on another bus (fans). It was found that this concern had been addressed by PG&E and the required modifications were completed. These modifications alleviate the 4-3
i specific concern because they permit the selection of both fan power and control power to be made from related buses, e
The operator cannot transfer to manual any safety-related automatic func-tions of the CRVP control system which is in accordance with the licensing commitments in Section 9.4.1 of the FSAR.
i 4.4 INSTRUMENT AND CONTROL INSTALLATION During the field verification it was identified that in certain panels the
{ safety-related CRVF control system wiring was not separated according to the criteria committed to in FSAR Section 8.3.3.
Additionally, it was identified that non-Class IE circuit identification by color, although in agreement with design drawings, was not as defined in FSAR Section 8.3.3. PG&E stated that they will provide a revision to FSAR Section 8.3.3 which will describe the method of color coding non-Class IE circuits which corresponds to the as-built condition.
s 4.5 ENVIRONMENTAL QUALIFICATION OF CLASS IE INSTRUMENTS r PG&E's Environmental Qualification Report, dated September 1981, classified
/ a portion of the CRVP System Class IE instrumentation as " Safety-Related Electrical Equipment Outside Containment Not Subject to a Severe Environ-
. ment." It further stated that equipment listed in the above category was i
not qualified according to the requirements of IEEE 323-1971 but was evalu-ated for the normal and abnormal conditions postulated within the plant.
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4 The remainder of the Class IE instrumentation in the CRVP System was not addressed in the Environmental Qualification Report. PG&E stated that the CRVP system equipment not addressed in the Environmental Qualification l Report was designed for the " mild environment" in which it was expected to operate. No CRVP system instrumentation was found by the IDVP to be in a postulated severe environment.
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4.6 INSTRUMENT APPLICATION i
The following safety-related instrument sensors are provided for the CRVP System:
- Chlorine Monitors for normal and emergency air intakes. All are the continuously sensing type and are in accordance with manufac-turer's application criteria.
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- Radiation Monitors for normal and emergency air intakes. All are designed for use in area monitoring and are in accordance with manufacturer's application criteria, l
- Air Flow Switches for detection of pressurization air flow. All are differential pressure type (low range) and are used in accord-
) ance with manufacturer's application criteria.
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4.7 PROCESS PARAMETER LIMITS FOR INSTRUMENT SETTINGS The instrumentation listed in Section 4.6 has ranges that are consistent with the process measurement requirements.
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4 SECTION 5 E0I REPORTS ISSUED Six files were opened as a result of the design review of the instrumenta-tion and controls portion of the CRVP System. The status of these files is presented in Appendix B.
E0I File 8017 was issued because a control switch was connected to both sources of redundant power and may have subjected the CRVP System to a com-mon failure mode, The controls for the CRVP System were modified to elimin-ate the concern, and the modifications were verified by the IDVP. This file has been closed as an Error Class A.
E0I File 8046 was issued because in shared systems the power sources for the control circuits for certain equipment were not always from the same unit as
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the power sources for that particular equipment. The concerns raised by this E0I File have been transferred to E0I File 8012. The closure of E0I File 8012 is discussed in detail in ITR No. 20. E0I File 8046 has been closed.
E0I File 8053 was issued due to radiation monitors RE 51, 52, 53, 54 being J
incorrectly identified as Instrument Class II instead of Class I on the instrument schematic drawing. The IDVP reviewed the documentation submitted as part of the response and concurred with PG&E that the instruments were purchased and installed to Design Class I criteria. This file has been closed.
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i E0I File 8056 was issued because Appendix E of NUREG 0588 requires all Class IE equipment to be identified as part of the environmental qualification procedure. Portions of the CRVP System were omitted from PG&E's Environ-mental Qualification Report. PG&E stated that the required compilation of Class - IE equipment for the environmental report was made before the CRVP L System was completed and that their listings will be updated in accordance with the PG&E normal procedure. No Design Class I instrumentation in the
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CRVP System was found to be located in a postulated severe environment.
This file has been closed.
E0I File 8057 was issued because the CRVP Class IE control system wiring was I
not separated in accordance with the criteria committed to in FSAR Section 8.3.3. PG&E evaluated the concern and provided a resolution which involved I physical modifications. The IDVP verified the modifications. This file has been closed as an Error Class A.
E0I File 8059 was issued because identification and separation criteria
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committed to in FSAR Section 8.3.3 for non-Class IE control wiring were not
- applied to certain panels in the CRVP System. PG&E responded that they i
f would amend FSAR Section 8.3.3 to describe the wiring color code for non-
{ Class IE control circuits. The IDVP has reviewed the proposed revision of
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d the FSAR and found it more accurately reflects the as-built condition. This j file has been closed.
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m SECTION 6 EVALUATION OF REVIEW RESULTS
'This section identifies those concerns judged to have a possible generic
-effect on the plant design.
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6.1 SYSTEM MONITORING f
f The parameters reviewed for the CRVP system monitoring are compatible with the requirements specified in the licensing commitments. No generic p
concerns exist. -
6.2 SYSTEM CONTROLS The design and operation of the automatic control system are consistent with
- j. the requirements of the CRVP System. One of the two control switches in the system did not meet the single failure criteria stated in FSAR Section 3.1.1. PG&E has modified the control system for compliance with single
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failure criteria, and these modifications were verified by the IDVP. The f generic concern of single failure criteria related to mutually redundant l
sources of power brought together in one electrical device is described in 1 ITR No. 34, and the results of the additional verification are reported in ITR No. 49.
6.3 DESIGN AND LICENSING DOCUMENT REVIEW The design documentation and drawings were in compliance with the system requirements stated in the licensing documents. There was, however, an in-consistency on the instrument design class on one type of drawing which does not indicate a generic defect. PG&E provided information attributing this inconsistency to a drafting error. PG&E also submitted documentation to show that the safety-related portion of the CRVP System was not affected by this error because the equipment in question was purchased and installed as Design Class I. The IDVP reviewed this documentation and it concurs.
When certain shared equipment is transferred from power in one unit to power in the other unit, it appeared that no provision was made to transfer the control power. .This would have resulted in the equipment being powered from one unit and its controls being powered from the other unit. Both units may
- not be available at all times. This concern was identified by PG&E prior to the IDVP Program and appropriate modifications were made. These modifica-tions were verified by the IDVP. The generic concern for shared power sources is described in ITR No. 34.
6.4 INSTRUMENT AND CONTROL INSTALLATION
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/ The separation between redundant electrical circuits does not meet the FSAR
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requirements. A _ potential generic concern exists and is described in ITR No. 34.
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6.5. ENVIRONMENTAL QUALIFICATION OF CLASS IE INSTRUMENTS The CRVP system instrumentation was not located in a potentially severe environment so environmental qualification was not required. No generic Concern exists.
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6.6 INST " MENT APPLICATION The instrument specifications were in accordance with criteria stated in the licensing documents and the application of the instruments is within the guidelines prescribed by the manufacturer. No generic concern exists.
6.7 PROCESS PARAMETER LIMITS FOR INSTRUMENT SETTINGS The process parameters fell within the range of the instruments which would permit the use of set points required by licensing criteria. No generic concern exists.
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I SECTION 7 CONCLUSIONS Based on the " Evaluation of Review Results" contained in Section 6 of this report, conclusions are made .on the need for . additional verification or L sampling concerning the specific subject areas.
SYSTEM MONITORING 7.I No additional verification or sampling is required.
7.2 SYSTEM CONTROLS Additional verification is required for separation and redundancy of control devices on the main control board. This additional verification is described in ITR No. 34 and the results of the additional verification are reported in ITR No. 49. ~
7.3 DESIGN AND LICENSING DOCUMENT REVIEW Additional verification is required for redundancy of equipment and power l
L supplies in shared (Unit I and Unit 2) safety-related systems. This additional verification is described in ITR No. 34 and the results of the A
additional verification are reported in ITR No. 49.
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7.4 INSTRUMENT AND CONTROL INSTALLATION Additional verification is required for separation of safety-related circuits within control panels. This additional verification is described in ITR No. 34 and the results of the additional verification are reported in ITR No. 49.
7.5 ENVIRONMENTAL QUALIFICATION OF CLASS IE INSTRUMENTS No additional verification or sampling is required.
7.6 INSTRUMENT APPLICATION No additional verification or sampling is required.
l 7.7 PROCESS PARAMETER LIMITS FOR INSTRUMENT SETTINGS 1
1 No additional verification or sampling is required.
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APPENDIX A REFERENCES l
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APPENDIX A
( REFERENCES
- 1. Final Safety Analysis Report, Chapters 3, 7, 8, and 9.
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- 2. Safety Evaluation Report (NUREG-0675), Supplement No. 14, April 1981.
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, 3. PG&E Letter to NRC, December 4, 1980, Field Audit of Electrical Separation.
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- 4. PG&E Environmental Qualification Report, Revision 1, September 1981.
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APPENDIX B i
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l APPENDIX B 8Cl8'P IDYP STATUS REPORT l
REY. O LATEST REY.
FILE NO. MTE REV. MTE SY STATUS SN KCT 8017 821004 0 821004 SkcOIR CRYP SYS. CONTRW. PGER FR SAFETY RELATED EWIP.
M17 821M4 1 821004 SIEC PG/A8 CRUP SYS. CONTROL POER FOR SAFETY RELATD EQUIP.
M17 821004 2 821022 TES ER/48 CRYP SYS. Com0L POIER FOR SAFETY llELATED EQUIP.
0017 821004 3 830225 TES ER/A CMP SYS. CollTROL POER FWt SAFETY RELATB EWIP.
8017 821004 4 830308 SMEC PER/A CRYP SYS. ColffRIL POER FOR SAFETY RELATH EQUIP.
8017 821004 5 830309 TES Ot/A CRYP SYS. CONTROL POIER FOR SAFETY RELATD EQUIP.
8017 821004 6 830601 TES OIR CRYP SYS. CSITREL PSER FM SAFETY RELATD EWIP.
8017 321M4 '7 830601 SEC PPRR/CI CRYP SYS. CONTROL poler FOR SAFETY RELATD EWi!P.
8017 821004 8 830603 TES PRR/CI CRYP SYS. CNTRIL POLER FOR SAFETY RELATD EOUIP.
i 8017 321004
! 9 830603 TES CR CRYP SYS. CollTROL POER FM SAFETY RELATD EWIP.
0046 321022 0 821022 SIEC OIR CMP COWOLS FOR Fall 8 % ??e N 8 99 8046 321022 1 821028 SIEC PER/48 CRYP CWffillLS FOR FANS % 97e N I ??
, 8046 821022 I
2 821118 TES ER/A8 CMP ColffRES FOR Falls % 77: 98 8 99 8046 821022 3 830309 TES DIR CMP CWiltlLS F0lt FANS % 77e 98 8 ??
8046 821022 4 830311 SUEC PPRR/8EV CMP CONTROLS FOR FANS % 77: 98 8 ??
8044 821022 5 830315 TES PRR/8EV CilYP CONTIllLS FOR falls % 97: 98 8 ??
8044 821022 6 830315 TES CR CRYP Co m 0LS FOR FANS 96e 97: 98 8 99 8053 821025 0 821025 SIEC OIR CMP SYSTER IllSTRWUTATIOli 8053 821025 1 821025 SIEC PPRR/OIP CMP SYSTEM INSTRWEllTATIOli 8053 821025 2 821118 TES PRR/0!P CMP SYSTS INSTRWENTATION 8053 821025 3 821217 TES 0!R 13YP SYSTEM IllBTRWENTAT!WI 8053 821025 4 830121 SMEC PPRR/CI CRYP SYSTD IllSTRWOTATION 9053 821025 5 830209 SIEC PPIIR/8EV CRYP SYSTD INSTRulENTATIOlt 8053 821025 6 830209 TES PRR/8EY CMP SYSTU IllSTRUISTATIOli 8053 821025 7 830225 TES CR CMP SYSTS INSTRWUTATI0li 8056 821025 0 821025 SIEC O!R CitYP SYSTS - CLASS IE EQUIPIST 9056 821025 1 821025 SIEC PPRR/0!P CRYP SYSTS - CLASS IE EQUIP!ENT 9056 821025 2 821118 TES PRR/0!P CRYP SYSTS - CLASS !E EOUIPfENT 8056 821025 3 830223 TES DIR CDP SYSTS - CLASS IE EQUIPIENT 9056 821025 4 830225 SIEC FfitR/CI CM P SYSTD - CLASS IE E WIPI S T 9056 821025 5 830225 TES PRR/CI CRYP SYSTB - CLASS IE EQUIPf E T 9056 821025 6 830225 TES CR CitYP SYSta - CLASS IE EQUIP!GT 9057 821025 0 821025 SWEC OIR AFW AND CitW COROL PAIELS 8057 821025 1 821028 SIEC PER/A8 AFU Alla CRYP Com0L PAIELS 9057 821025
- 2 821118 TES ER/A8 AFW AN8 CRYP CollTROL PAIELS 8057 821025 3 830311 TES DIR AFU AN8 CMP CONTRIL PAIELS 8057 821025 4 830311 SIEC PER/4 AFU AN8 CRYP Com0L PAIELS 8057 821025 5 830315 TES ER/A WW Alla CitYP Com0L PAIELS 8057 821025 6 830621 TES DIR AFV Ale CRYP CWITROL PAIELS 8057 821025 7 83M22 SIEC PPRP/CI AFU Alt CRYP C0llTit0L PAIELS 8057 821025 0 830624 TES PItR/CI AFW AND CitYP CollTROL PAIELS
'8057 821025 9 830424 TES CR 8059 AFU AIS CMP CONTRIL PAIELS 821029 0 821029 SIEC OIR AFV l CitYP CollTROL PAllELS AN8 RACDAYS 9059 821029 1- 821029 SIEC PPItR/0!P AFW SYS & CRYP SYS CSITROL PAllELS I RACEMYS 8059 821029 2 821123 TES PltR/0!P AFV SYS I CitVP SYS CONTROL PAIELS I RACEMYS 8059 821029 3 830401 TES O!R 8059 821029 AFV SYS I CRYP SYS CollTRW. PAIELS I RACEWAYS 4 834404 SMEC PDt/C 8059 AFW SYS & CRYP SYS CollTROL PANELS I RACEMYS 821029 5 830407 TES ER/C AFU SYS I CRYP SYS CONTRW. PAIELS I RACEMYS 8059 821029 6 830407 TES CR WW SYS 8 CitYP SYS CollTRW. PAIELS 8 ItACEllAYS
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APPENDIX C PROGRAM MANAGER'S ASSESSMENT i
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Appendix,C_
Program Manager's Assessment i
j Independent review by TES of the tasks performed by SWEC to verify the instrumentation and controls design of the Control Room Ventilation and Pressurization System was done in accordance with IOVP Phase II Program Management Plan, dated June 18, 1982 and the Engineering Procedure EP 014.
The review included several visits to the site and to the SWEC offices for detailed discussions and review, with SWEC personnel, of the work performed by SWEC including the methodology and calculations used in the evaluation of this task.
The files issued by SWEC were reviewed thoroughly and specific recommendations were made to the IDVP Program Manager deli neat:-r.g appropriate resolution.
As a result of the verification of the initial sampling selected by SWEC and the assessment of the impact of SWEC findings, TES, as Program Manager, is of the opinion that because separation of safety-related circuits was found to be inadequate, additional verification is required.
This additional verification is identified in ITR-34, and the results are reported in ITR-49.
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INTERIM TECHNICAL REPORT 14 REVISION 2 i
VERIFICATION OF THE PRESSURE, TEMPERATURE, ,
HUMIDITY, AND SUBMERGENCE ENVIRONMENTS USED FOR SAFETY-RELATED EQUIPMENT SPECIFICATION OUTSIDE CONTAINMENT FOR AUXILIARY FEEDWATER 1 SYSTEM AND CONTROL ROOM VENTILATION AND PRESSURIZATION SYSTEM l
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[ d STONE & WEBSTER ENGINEERING CORPORATION