ML17334B451
| ML17334B451 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 12/16/1992 |
| From: | Fitzpatrick E AMERICAN ELECTRIC POWER SERVICE CORP. |
| To: | Cook D NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML17329A705 | List: |
| References | |
| AEP:NRC:1159C, NUDOCS 9212180049 | |
| Download: ML17334B451 (30) | |
Text
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REGULA1C INFORMATION DZSTRIBUTIOZSTEM .(RIDE)
ACCESSION NBR:9212180049 DOC.DATE: 92/12/16 NOTARIZED: YES DOCKET FACIL:50-315 Donald C. Cook Nuclear Power Plant, Unit 1, Indiana M 05000315 50-316 Donald C. Cook Nuclear Power Plant, Unit 2, Indiana M 05000316 AUTH. NAME AUTHOR AFFILIATION FITZPATRICK,E. American Electric Power Service Corp.
RECIP.NAME RECIPIENT AFFILIATION COOK,D.C. Document Control Branch (Document Control Desk)
SUBJECT:
Application for amends to licenses DPR-58 & DPR-74, consisting of proposed TS pages. I DISTRIBUTION CODE: AOOID COPIES RECEIVED:LTR g ENCL ! SIZE: P +'
TITLE: OR Submittal: General Distribution NOTES:
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American Electric Power Service Corporati~
1 Riverside Plaza Columbus, OH 43215
~
614 223 1000
à AEP'NRC:1159C Donald C. Cook Nuclear Plant Units 1 and 2 Docket Nos. 50-315 and 50-316 License Nos. DPR-58 and DPR-74 REACTOR PROTECTION SYSTEM MODIFICATION U, S. Nuclear Regulatory Commission Document Control Desk Washington, D. C. 20555 Attention: T. E, Murley December 16, 1992
Dear Dr. Murley:
An upgrade to the Donald C. Cook Nuclear Plant's reactor protection system instrumentation is necessary due to the increased maintenance required on the existing Foxboro protection system and the difficulty in obtaining qualified replacement parts. The upgrade involves the installation of Foxboro's SPEC 200 and SPEC 200 MICRO lines of instrumentation. We believe that this modification will enhance overall plant safety due to the reduced drift, enhanced reliability, and greater flexibility provided by microprocessor-based hardware. This line of instrumentation has been approved by the NRC for use in the reactor protection system at Haddam Neck in 1990, and it is used in nuclear and non-nuclear applications throughout the world.
On April 21, 1992 a meeting was held among personnel from American Electric Power Service Corporation (AEPSC), Foxboro, and your staff to discuss the plans, schedules, and interfaces to support an upgrade to the reactor protection system for Cook Nuclear Plant Units 1 and 2. At that meeting, we agreed to submit the majority of the engineering information and a license change request to support this upgrade by November 30, 1992 'etails meeting were reiterated in our letter AEP:NRC:1159B dated of this May 1, 1992. On December 1, 1992 a meeting was held among AEPSC, Foxboro, and the NRC to discuss the format of the information to be submitted, During this meeting, your staff advised us that the majority of the engineering information should be made available for their audit, currently anticipated to take place in January 1993 at Foxboro's offices in Foxboro, Massachusetts.
9212180049 921216 PDR ADOCK 05000315 P PDR
C' Dr, T. E, Murley AEP:NRC:1159C In addition, we were requested to submit our request for a license amendment, as well as various summary reports, by December 15, 1992. As such, this letter serves to transmit a license amendment request and the requested summary reports.
It should be stated that, while most of the documentation delineating and supporting the engineering design and application of the new instrumentation is complete, several items still remain open. As indicated in our May 1, 1992 submittal, the factory acceptance test report is scheduled to be completed in April 1993.
In addition, the final electromagnetic interference/radio frequency interference (EMI/RFI) test report will not be completed until January 1993. All of these documents will be made available for your staff's review upon their completion. to this letter provides our request for a license amendment and our proposed determination of no significant hazards consideration performed pursuant to 10 CFR 50.92. Attachment 2 contains the existing license pages marked to reflect the proposed changes. Attachment 3 contains the proposed license pages. provides an explanation of how the detailed engineering data that AEPSC will provide the staff during their audit of this project is organized. Specifically, Attachment 4 contains the Issues Tracking List and the Documentation Tracking List, as presented at the December 1, 1992 meeting. provides summaries of the reports that have been written on the major topics associated with this instrumentation upgrade. These include reports on the subjects of hardware and firmware, environmental effects, seismic qualification, EMI/RFI, power supply/electrical, independence, failure modes and effects, reliability, functional requirements, performance requirements, verification and validation, testing, and diversity. These summary statements are being submitted in response to your staff's request during the December 1, 1992 meeting.
It is our understanding that your staff will be able to support a review schedule that will allow shipment of equipment in May 1993.
We will provide whatever support is needed in order to meet this schedule.
We believe that the proposed instrumentation upgrade and the associated license amendment will not result in (1) a significant change in the types of any effluent that may be released offsite, or (2) a significant increase in individual or cumulative occupational radiation exposure.
Dr. T. E. Murley AEP:NRC:1159C In compliance with the requirements of 10 CFR 50.91 (b)(1), copies of this letter and its attachments have been transmitted to the Michigan Public Service Commission and the Michigan Department of Public Health.
This letter is submitted pursuant to 10 CFR 50.54(f) and, as such, an oath statement is enclosed.
Sincerely, E, E.
pm Fitzpatrick Vice President rag Attachments CC: D. H. Williams, Jr.
A. A. Blind - Bridgman J. R. Padgett G. Charnoff NFEM Section Chief A. B. Davis - Region III NRC Resident Inspector - Bridgman
Dr. T. E. Murley AEP:NRC:11590 be: S. J. Brewer M. L. Horvath - Bridgman J. B. Kingseed/V. VanderBurg/R. A. Green D. H. Malin/K. J. Toth J. B. Shinnock W. G. Smith, Jr.
W. M. Dean, NRC - Washington, D. C.
AEP:NRC:1159C DC-N-6015.1
STATE OF OHIO)
COUNTY OF FRANKLIN)
E. E. Fitzpatrick, being duly sworn, deposes and says that he is the Vice President of licensee Indiana Michigan Power Company, that he has read the forgoing Reactor Protection System Modification and knows the contents thereof; and that said contents are true to the best of his knowledge and belief.
Subscrib and sworn to before me this day of 19 (pAm~taD ~
NOTARY Pc C
Attachment 1 to AEP:NRC:1159C 10 CFR 50.92 Analysis for Changes to The Donald C. Cook Nuclear Plant Operating License
to AEP:NRC:1159C Page 1 1.0 Re uest for License Amendment This submittal constitutes a request for an amendment to the Cook Nuclear Plant Units 1 and 2 operating licenses. These amendments will allow the use of the proposed digital instrumentation in the reactor protection system, In a memorandum dated July 1, 1991 to Ashok C. Thadani, Director-Division of Systems Technology, Mr. Steven A. Varga, Director-Division of Reactor Projects-I/II, states:
After reviewing 50.59, its history, and the NRC endorsed guidance (NSAC 125), it is our opinion that this type of technology replacement [use of digital instrumentation in the reactor protection system]
cannot be performed under 50.59.
As noted in this memo, we are aware of the DC Cook RPS replacement project and we do not believe this modification should be performed under the 50.59 rule.
Subsequently, during the April 21, 1992 meeting, AEPSC was advised that this instrumentation change would require a license amendment.
Specifically, we are proposing to add the following condition as item number 2.K to the Unit 1 license and item 2.L to the Unit 2 license:
The licensee is authorised to use digital signal processing instrumentation in the reactor protection system.
2.0 Sco e of Reactor Protection S stem Instrumentation U rade The proposed design change will install the following equipment in the reactor protection systems of both Cook Nuclear Plant units.
This equipment will perform the same functions as the equipment it replaces.
Foxboro SPEC 200 type analog input signal conditioning equipment, which changes the various types and values of input signals from the sensors into a common type of analog output signal that represents the input values at the channel level.
to AEP:NRC:1159C Page 2
- 2. Foxboro SPEC 200 MICRO digital signal processing equipment, which takes the analog signal from the SPEC 200 analog input equipment at the channel level and:
a ~ Changes the analog signals to digital signals.
- b. Processes the digital signals and compares them against predetermined limits, as well as performs dynamic functions and calculations.
- c. Changes the processed digital signals back to analog output signals'.
Foxboro SPEC 200 analog output signal conditioning equipment, which takes the analog output signals from the SPEC 200 MICRO and conditions them for use in the control system, as well as for indication and recording use.
- 4. Foxboro SPEC 200 type contact output equipment, which produces discrete trip signals from the SPEC 200 MICRO and provides trip signals for input to the reactor protection logic equipment (SSPS).
Foxboro SPEC 200 type power distribution equipment, which powers the signal conditioning and processing equipment discussed abo~e.
- 6. 75 VDC multi-loop and + 15 VDC multi-nest power supplies, which provide power for the field transmitters and SPEC 200 equipment ~
3.0 Justification This modification is necessary due to the increased maintenance required on the existing Foxboro protection system and the difficulty in obtaining qualified replacement parts. In addition, the changes described above represent a compilation of modifications and enhancements to the reactor protection system that will improve the system's reliability and availability.
A nearly identical system was approved for use by the NRC at the Haddam Neck Plant in 1990. In addition, digital instrumentation was approved for use in both the Sequoyah Nuclear Plant and Zion Station reactor protection systems.
to AEP:NRC:1159C Page 3 4.0 No Si nificant Hazards Consideration We have evaluated the proposed instrumentation changes and have determined that these changes will not involve a significant hazards consideration based on the criteria established in 10 CFR 50.92(c). Operation of the Cook Nuclear Plant in accordance with the proposed changes will not:
Involve a si nificant increase in the robabilit or conse uences of an accident reviousl evaluated.
The Foxboro SPEC 200 and SPEC 200 MICRO lines of instrumentation are designed to mitigate anticipated operational occurrences and design basis accidents by actuating the reactor trip and engineered safeguards signals credited in the Cook Nuclear Plant safety analyses (see Attachment 5, Report No. 2985-WGS-03, "SPEC 200/SPEC 200 MICRO Hardware and Firmware System Description" ). This instrumentation is designed to monitor and process signals for temperature, pressure, fluid flow, and fluid level (see Attachment 5, Report No. 2985-HEI-01, "Summary Report for Response Time Evaluations," and Report No. 2985-SKF-01, "Technical Specification Compliance Assessment" ). While it is a form, fit and functional replacement for the existing its Foxboro reactor protection system instrumentation, reliability and availability is better than that of the present instrumentation (see Attachment 5, Report No. 2985-HEI-15, "Reliability and MTBF Analysis" ). As such, in the highly unlikely event that the new instrumentation experiences a failure, the consequences will not exceed those caused by a failure of the existing system. The new instrumentation's failure modes and effects are discussed in Attachment 5 in Report No. 2985-HEI-14, "Failure Modes and Effects Analysis Protection Set 1 Foxboro SPEC 200."
Since the ability of the reactor protection syst: em to detect faults and initiate protective action is not reduced and since the FSAR analyses remain bounding as indicated above, the probability or consequences of accidents previously analyzed are not increased.
Create the ossibilit of a new or different kind of accident from an reviousl anal zed.
The Foxboro SPEC 200 and SPEC 200 MICRO instrumentation is designed to mitigate anticipated operational occurrences and design basis events by actuating reactor trip or engineered safeguards signals credited in the safety analyses. The instrumentation is designed to monitor and process signals to AEP:NRC:1159C Page 4 for temperature, pressure, fluid flow, and fluid levels. It is a form, fit and functional replacement for the existing Foxboro analog instrumentation.
To ensure that the equipment will perform as required, extensive measures have been taken to ensure that the response of the new instrumentation is enveloped by the design basis accident analyses contained in Chapter 14 of the Cook Nuclear Plant FSAR. This is demonstrated, in part, in reports that are summarized in Attachment 5 including:
Report No. 2985-VDV-01, "Reactor Protection Functional Diversity Assessment;" Report No. 2985-HEI-01, "Summary Report for Response Time Evaluations;" and Report No. 2985-SKF-01, "Technical Specification Compliance Assessment."
Application of the Foxboro instrumentation in the Cook Nuclear Plant reactor protection system includes, among other things, such considerations as single failure, independence, functional diversity, and separation criteria.
In addition, the response of the instrumentation during events such as station blackout and design basis earthquake was assessed. The reports contained in Attachment 5 summarize these efforts, An analysis of the response times of the instrumentation indicates that they will be bounded by the existing FSAR analyses and the existing Cook Nuclear Plant technical specification limits (see Attachment 5, Report No. 2985-HEI-01, "Summary Report for Response Time Evaluations" ).
With regard to the application of digital technology in the Cook Nuclear Plant reactor protection system, a battery of EMI/RFI evaluations was performed, as discussed in Report No. 2985-HEI-03, "Preliminary EMI/RFI Evaluation." These evaluations concluded that the EMI/RFI environment at Cook Nuclear Plant is suitable for the application of this type of equipments The SPEC 200 and SPEC 200 MICRO have been designed, verified, and validated to be in compliance with the protection system functional requirements. This statement is supported by Report No. 2985-DPS-01, "Functional Requirement Summary," and Report No. 2985-HHH-01, "Qualification Compliance," both of which are provided in Attachment 5. Additionally, reliability studies of the instrumentation, as well as the verification and validation studies and the equipment qualification programs, indicate that the susceptibility of the reactor protection system to to AEP:NRC:1159C Page 5 common mode failure mechanisms will be reduced. (See Attachment 5, Report No. 2985-HEI-15, "Reliability and MTBF Analysis.")
A failure of the digital instrumentation will not create a new or different accident. In the highly unlikely event that the new reactor protection system instrumentation should fail, the consequences experienced would be equivalent to those experienced if the2985-HEI-14, existing equipment "Failure failed. (See Attachment 5, Report No.
Modes and Effects Analysis Protection Set 1 Foxboro SPEC 200," and Report No. 2985-VDV-01, "Reactor Protection Functional Diversity Assessment.")
Consequently, this change does not create the possibility of a new or different kind of accident from any accident previously evaluated for the Cook Nuclear Plant.
- 3. Involve a si nificant reduction in a mar in of safet The proposed change will not, reduce the margin of safety, The accuracy and reliability of the reactor protection system will be improved with the installation of the Foxboro SPEC 200 and SPEC 200 MICRO instrumentation (see Attachment 5, Report No. 2985-HEI-15, "Reliability and MTBF Analysis" ).
The ~arious reactor trip and engineered safeguard actuation circuits continue to provide signals to automatically open the reactor trip breakers or actuate engineered safeguards equipment, as applicable, whenever a condition monitored by the reactor protection system or the engineered safeguards features actuation system reaches a preset or calculated level. In addition to redundant channels and trains, the protection system will continue to monitor numerous system variables, thereby providing protection system functional diversity (see Attachment 5, Report No. 2985-VDV-01, "Reactor Protection Functional Diversity Assessment" ).
In addition, since it is assumed that our overall response times and setpoint and allowable values will continue to remain bounding (See Attachment 5, Report No. 2985-HEI-01, "Summary Report for Response Time Evaluations," and Report No. 2985-SKF-01, "Technical Specification Compliance Assessment" ), the results and conclusions of the accident analyses remain valid, as supported by Report No. 2985-VDV-01, "Reactor Protection Functional Diversity Assessment,"
contained in Attachment 5. Response time testing performed as part of the factory acceptance testing will verify that the response times assumed in the accident analyses are not exceeded.
Attachment 2 to AEP:NRC:1159C Existing Licenses for Donald C. Cook Nuclear Plant Units 1 and 2 Marked to Reflect Proposed Changes
Unit 1 marked-up license Docket No. 315 Page 6 of 6
- 2.I Iodine Monitorin Amendment The license shall implement a program which will ensure the No. 49 capability to accurately determine the airborne concentration in vital areas under accident condition's.
This program shall include the following:
- 1. Training of personnel,
- 2. Procedures for monitoring, and
- 3. Provisions for maintenance of sampling and analysis equipment.
Amendment 2.J In all places of this license, the reference to the Indiana No. 114 and Michigan Electric Company is amended to read "Indiana Michigan Power Company."
gS.~se.~ &Q Amendment 3. This amended license is effective as of the date of issuance No. 157 and shall expire at midnight October 25, 2014.
- Amendment No. 70 superseded the following Amendments for numbering: Nos. 33, 45 and 49
'OR THE NUCLEAR REGULATORY COMMISSION Roger S. Boyd, Director Division of Project Management Office of Nuclear Reactor Regulation
Enclosure:
Appendix A - Technical Specifications Date of Issuance: March 30, 1976
Insert A:
The licensee is authorized to use digital signal processing instrumentation in the reactor protection system.
Unit 2 marked-up license
~
Docket: No. 316 Page 9 of 11 g, L. ('Zn.s~c 4 A$
Amendment 3. This license is effective as of the date of issuance and shall No. 141 expire at midnight, December 23, 2017.
Roger S. Boyd, Director Division of Project Management Office of Nuclear Reactor Regulation Attachments:
- 1. Preoperational Tests, Start-up Tests and Other Items Which Muse-be Completed Prior to Proceeding to Succeeding Operational Modes.
- 2. Appendix A - Technical Specifications Date of Issuance: December 23, 1977
Insert A:
The licensee is authorized to use digital signal processing instrumentation in the reactor protection system.
Attachment 3 to AEP;NRC:1159C Proposed Licenses for Donald CD Cook Nuclear Plant Units 1 and 2
Docket No. 315 Page 6 of 6 2.I Iodine Monitorin Amendment The license shall implement a program which will No. 49 ensure the capability to accurately determine the airborne concentration in vital areas under accident conditions. This program shall include the following:
- 1. Training of personnel, 2 ~ Procedures for monitoring, and
- 3. Provisions for maintenance of sampling and analysis equipment.
Amendment 2.J In all places of this license, the reference No.114 reference to the Indiana and Michigan Electric Company is amended to read Indiana Michigan Power Company."
2.K The licensee is authorized to use digital signal processing instrumentation in the reactor protection system.
Amendment 3. This amended license is effective as of No. 157 the date of issuance and shall expire at midnight October 25, 2014.
Amendment No. 70 superseded the following Amendments for numbering: Nos. 33, 45 and 49
'OR THE NUCLEAR REGULATORY COMMISSION Roger S. Boyd, Director Division of Project Management Office of Nuclear Reactor Regulation
Enclosure:
Appendix A - Technical Specifications Date of Issuance: March 30, 1976
Docket No. 316 Page 9 of ll 2.L The licensee is authorized to use digital signal processing instrumentation in the reactor protection system.
Amendment 3. This license is effective as of the date No. 141 of issuance and shall expire at midnight, December 23, 2017.
Roger S, Boyd, Director Division of Project Management Office of Nuclear Reactor Regulation Attachments:
- 1. Preoperational Tests, Start-up Tests and Other Items Which Must be Completed Prior to Proceeding to Succeeding Operational Modes.
- 2. Appendix A - Technical Specifications Date of Issuance: December 23, 1977
Attachment 4 to AEP:NRC:1159C Organization of the Engineering Data
Attachment 5 to AEP:NRC:1159C Requested Summary Reports
.9212180049 to AEP:NRC;1159C Page 1 This attachment contains the summary reports for each of the topical areas listed below. The detailed information supporting these reports will be made available to the NRC staff during their audit of the instrumentation upgrade, as discussed at the December 1, 1992 meeting.
System Summary Report No, 2985-WGS-03 "SPEC 200/SPEC 200 MICRO Hardware and Firmware System Description" Environmental Report No ~ 2985-HEI-12 "Engineering Analysis of Temperature and Humidity Effects on Foxboro SPEC 200 Instrumentation" Seismic Report No, 2985-HEI-07 "Seismic Qualification Assessment of Foxboro SPEC 200 Equipment" EMI/RFI Report No. 2985-HEI-03 "Preliminary EMI/RFI Evaluation" Power Supply/Electrical Report No. 2985-HEI-06 "Summary Report for System Power Quality Evaluation" Report No. 2985-HEI-02 "Engineering Analysis of Grounding Issues" Independence Report No. 2985-NCF-01 "Regulatory Requirements and Industry Standards Associated with the Reactor Protection and Control Process Instrumentation Replacement Project"
to AEP:NRC:1159C Page 2 Failure Modes and Effects Report No. 2985-HEI-14 "Failure Modes and Effects Analysis Protection Set 1 Foxboro SPEC 200" Reliability Report No. 2985-HEI-15 "Reliability and MTBF Analysis" Functional Requirements Report No ~ 2985-DPS-01 "Functional Requirement Summary" Performance Requirements Report No. 2985-HEI-01 "Summary Report for Response Time Evaluations" Report No. 2985-SKF-01 "Technical Specification Compliance Assessment" Verification and Validation Report No. 2985-HHH-01 "Qualification Compliance" Testing Report No, 2985-BJB-Ol "Test Program Summary" Diversity Report No. 2985-VDV-01 "Reactor Protection Functional Diversity Assessment"