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Category:MEETING MINUTES & NOTES--CORRESPONDENCE
MONTHYEARML20138G7291996-12-0303 December 1996 Summary of 961203 Meeting W/Psc in Plattville Co Re Decommissioning & License Termination of Fsv.Slides,Encl ML20137H2471995-04-12012 April 1995 Summary of 950405-06 Meeting W/Utility at Fort St Vrain Re Stier,Anderson & Malone Rept.Attendees Listed ML20128G1851993-01-29029 January 1993 Summary of 930128 Meeting W/Psc in Rockville,Md Re Briefing of NRC Staff on Status of Fsv Decommissioning Activities. Meeting Agenda & Summary of PSCs Briefing Encl ML20055J3931990-07-31031 July 1990 Summary of 900725 Meeting W/Util in Rockville,Md Re Defueling & Decommissioning of Facility.Attendees List Encl ML20246D9231989-08-18018 August 1989 Summary of 890718 Meeting W/Util to Discuss Defueling of Plant.List of Attendees,Agenda & Viewgraphs Encl ML20236C9921989-03-13013 March 1989 Summary of 890307 Meeting W/Util & Ga Technologies Re Plant Coastdown & Defueling.Attendance List,Agenda & Viewgraphs Encl ML20195D5591988-10-26026 October 1988 Summary of 881013 & 14 Meeting W/Util to Discuss Potential Decommissioning of Facility.W/O Stated Encl ML20154E4031988-09-0909 September 1988 Summary of 880831 Meeting W/Util Re Fire Protection Issues at Plant.Meeting Attendees Encl ML20151K6901988-07-18018 July 1988 Summary of Operating Reactors Events Meeting 88-28 on 880712.Viewgraphs & List of Attendees Encl ML20151K7361988-04-15015 April 1988 Summary of Operating Reactors Events Meeting 88-15 on 880412.List of Attendees & Viewgraphs Encl ML20153A8551988-03-0909 March 1988 Summary of 880304 Meeting W/Util to Discuss 880122 Submittal Re Helium Circulator Failure & Recovery.Attendee List & Viewgraphs Encl ML20149L4981988-02-12012 February 1988 Summary of 871207 Meeting W/Utils in Bethesda,Md Re Licensees Revised Proposal to Comply W/Nrc Requirement for Simulation Facilities Under 10CFR55.45(b).List of Attendees & Util Simulation Facility Group Guideline Encl ML20147D8901988-01-12012 January 1988 Summary of 881202-03 Meeting W/Util,Inel & ORNL Re Status of Tech Spec Upgrade Program.Meeting Attendees & Listed Ref Encl ML20237D6921987-12-15015 December 1987 Summary of 871203 Meeting W/Util & Inel Re Protective Sys Setpoints in Tech Specs.List of Meeting Attendees Encl ML20237D2251987-12-15015 December 1987 Summary of 871204 Meeting W/Util Re Licensee Latest Proposals for Licensing Actions Concerning CRD Mechanism Temp Requalification & Position Instrumentation.List of Attendees & Related Info Encl ML20236B9121987-10-20020 October 1987 Summary of 871002 Meeting W/Util Re Specific Aspects of Util Approach to Conform w/10CFR55 for Facility.List of Attendees & Util Presentation Matl Encl ML20236A9731987-10-13013 October 1987 Summary of 870915-16 Meetings W/Four Facility Licensees in Bethesda,Md Re Proposal to Apply for NRC Approval for Simulation Facilities.Viewgraphs & Related Documents Encl ML20235Z5891987-10-0808 October 1987 Summary of 871006 Operating Reactor Events Meeting 87-34 Re Events Occurring Since 870929 Meeting.List of Attendees & Presentation Matl Encl ML20235H4401987-09-21021 September 1987 Summary of 870911 Meeting W/Util in Arlington,Tx Re Failure of Plant Circulator S/N C-2101 & Licensee Program to Recover from Failure.Licensee Rept, Preliminary Rept of Helium Circulator S/N C-2101 Damage & Justification... Encl ML20207S6271987-03-12012 March 1987 Summary of 870210 Meeting W/Util Re Emergency Diesel Generator Electrical Independence.List of Attendees Encl ML20210P0191987-02-0505 February 1987 Summary of 870113 Meeting W/Util Re Completion of Equipment Qualification Program & Program & Approvals Required for Plant Restart ML20212D8641986-12-24024 December 1986 Summary of 861209 Meeting W/Util Re Plant Emergency Electrical Power Sys.Fsar Commitment Re Emergency Diesel Generators revised.Marked-up Draft Rept Re Ac Standby Power Sys Encl ML20207B9781986-12-15015 December 1986 Summary of 861027-30 Meetings W/Util,Eg&G Idaho,Inc & ORNL at Site Re Tech Spec Upgrade Program.List of Attendees & NRC Comment Resolution Encl ML20214U7071986-12-0202 December 1986 Summary of 861120 Meeting W/Util,Ornl,Ga Technologies & Eg&G Re Temp Profiles for Equipment Qualification.List of Attendees & Viewgraphs Encl ML20214P8511986-11-25025 November 1986 Summary of 861105 Meeting W/Lasl Re Technical Evaluation Rept on Prestressed Concrete Reactor Vessel Tendons.Staff Requires Determination Re Listed Items.List of Attendees Encl ML20214Q0951986-11-25025 November 1986 Summary of 861027 Meeting W/Util to Discuss Schedule for Ie/Nrr Insp of Equipment Qualification Program.Attendance List & Viewgraphs Encl ML20197B8651986-10-28028 October 1986 Summary of 861001-02 Meetings W/Util,Inel & ORNL Re Staff Comments on Plant Tech Spec Upgrade Program.Nrc Comments Not Intended to Require Plant Mod or Changes to Licensing Basis of Plant ML20215L2101986-09-12012 September 1986 Summary of ACRS Subcommittee on Gas-Cooled Reactor Plants 860626 Public Meeting W/Nrc & Util in Washington,Dc Re Bases Used to Impose Requirements on Facility & Possibility of Severe Accidents.Attendance List & Viewgraphs Encl ML20215L2001986-09-12012 September 1986 Summary of ACRS Subcommittee on Fort St Vrain 860402 Public Meeting W/Nrc & Util at Facility Re Technical Problems Addressed During Recent Extended Outage & Mgt Charges. Attendance List & Viewgraphs Encl ML20206P5971986-08-15015 August 1986 Summary of 860724 Meeting W/Util,Inel,Wyle Labs,Sargent & Lundy & Tenera in Bethesda,Md Re Util Draft Documentation to Justify Qualification of safety-related Cabling at Plant. List of Attendees Encl ML20211Q6161986-07-23023 July 1986 Summary of Operating Reactor Events Meeting 86-25 on 860721 Re Events Since 860714 Meeting.List of Attendees,Discussion of Events & Status of Assignments Encl.Response Requested for Incomplete Assignments ML20207H0281986-07-21021 July 1986 Summary of 860627 Meeting W/Util Re Status of Tech Spec Upgrade Program.List of Attendees Encl ML20207H1211986-07-18018 July 1986 Trip Rept of 860625-27 Site Visit to Review QA Program, Observe Equipment Qualification Mods & Obtain Unescorted Access Status ML20203B6181986-07-15015 July 1986 Summary of 860613 Meeting W/Util in Bethesda,Md Re Status of Plant Equipment Qualification Program.List of Attendees, Environ Qualification of Plant Safe Shutdown Cable & Cable Qualification Binders Encl ML20199K4911986-06-27027 June 1986 Summary of 860604 Meeting W/Util Re Status of Licensing Actions.List of Attendees,Summary of NRC Responses to Actions & Summary of Actions Encl ML20205S2341986-06-0101 June 1986 Summary of 860502 Meeting W/Util & Inel in Bethesda,Md Re Equipment Qualification Program Problem Areas.Attendees List & Supporting Documentation Encl ML20198H4561986-05-27027 May 1986 Summary of 860505 Meeting W/Util Re Status of Equipment Qualification Program.Considerable Work Remains Before Approval of Full Power Operation Can Be Granted.Staff Recommended Util Continue to Complete Program ML20197F1691986-05-0808 May 1986 Summary of Operating Reactors Events 860428 Meeting W/Listed Divs Re Chernobyl Nuclear Accident & Events at Us Reactors ML20197F6541986-05-0707 May 1986 Summary of 860423-24 Meetings W/Util,Ga Technologies & S&W at Site Re Fuel Block Cracking,Bldg 10 Const,Seismic Instrumentation,Pcrv Tendons & Integrated Leak Rate Testing. Attendance List & Viewgraphs Encl ML20203E8051986-04-18018 April 1986 Summary of Operating Reactors Events Meeting 86-12 on 860414 Re Events Since 860407.List of Attendees,Viewgraphs & Supporting Documentation Encl ML20205J9221986-04-18018 April 1986 Summary of ACRS 312th Meeting on 860410-12 in Washington,Dc Re Proposed NRC Safety Goal Policy Statement & Need for Guidance in Environ & PRA for Quantification of Public Health Risks to Nearby Populations ML20205S2591986-04-10010 April 1986 Summary of 860326 Site Meeting W/Util,Dibenedetto Assoc,Inc, Sandia & Sargent & Lundy Re Status of Qualifications of 10CFR50.49 Cables & Maint Records History Review.Viewgraphs & Attendees List Encl ML20141B7451986-03-28028 March 1986 Summary of 860313 Meeting W/Util in Arlington,Tx Re Tech Spec Limiting Condition for Operation 4.1.9 Covering Frequency of Manipulation of Reactor Controls.Supporting Documentation Encl ML20142A0661986-03-14014 March 1986 Summary of 860116 Meeting W/Util,Training Co,Inc & SM Stoller Corp Re Performance Enhancement Program. Viewgraphs Encl ML20141P1771986-03-14014 March 1986 Summary of 860130 Meeting W/Util,Inel,Tenera & Sargent & Lundy Re Equipment Qualification (EQ) Program.List of Attendees,Test Profiles & Review of Sample EQ Package Encl ML20142A0441986-03-12012 March 1986 Summary of 860221 Onsite Meeting W/Util,Inel,D Benedetto Assoc,S&W,Tenera,Ned & NPD Re Equipment Qualification Program & Steam Line Rupture Detection & Isolation Sys ML20138R7331985-10-31031 October 1985 Summary of 851029 Meeting W/Util & ORNL Re Schedule Extension to Equipment Qualification Rule.List of Attendees, Agenda & Matls Presented by Util Encl ML20138P0081985-10-21021 October 1985 Summary of Operating Reactors Events Meeting 85-19 on 851007 W/Ofc Directors,Div Directors & Representatives on Events Which Occurred Since Last Meeting on 851007 ML20134F3081985-08-15015 August 1985 Summary of 850722-26 Meetings W/Util & Ga Technologies Re Tech Spec Upgrade.List of Attendees Encl ML20129E6721985-05-28028 May 1985 Summary of 850803 Meeting W/Util & Ga Technologies Re CRD Mechanism Tech Spec Problem.List of Attendees Encl 1996-12-03
[Table view] Category:MEETING SUMMARIES-INTERNAL (NON-TRANSCRIPT)
MONTHYEARML20138G7291996-12-0303 December 1996 Summary of 961203 Meeting W/Psc in Plattville Co Re Decommissioning & License Termination of Fsv.Slides,Encl ML20137H2471995-04-12012 April 1995 Summary of 950405-06 Meeting W/Utility at Fort St Vrain Re Stier,Anderson & Malone Rept.Attendees Listed ML20128G1851993-01-29029 January 1993 Summary of 930128 Meeting W/Psc in Rockville,Md Re Briefing of NRC Staff on Status of Fsv Decommissioning Activities. Meeting Agenda & Summary of PSCs Briefing Encl ML20055J3931990-07-31031 July 1990 Summary of 900725 Meeting W/Util in Rockville,Md Re Defueling & Decommissioning of Facility.Attendees List Encl ML20246D9231989-08-18018 August 1989 Summary of 890718 Meeting W/Util to Discuss Defueling of Plant.List of Attendees,Agenda & Viewgraphs Encl ML20236C9921989-03-13013 March 1989 Summary of 890307 Meeting W/Util & Ga Technologies Re Plant Coastdown & Defueling.Attendance List,Agenda & Viewgraphs Encl ML20195D5591988-10-26026 October 1988 Summary of 881013 & 14 Meeting W/Util to Discuss Potential Decommissioning of Facility.W/O Stated Encl ML20154E4031988-09-0909 September 1988 Summary of 880831 Meeting W/Util Re Fire Protection Issues at Plant.Meeting Attendees Encl ML20151K6901988-07-18018 July 1988 Summary of Operating Reactors Events Meeting 88-28 on 880712.Viewgraphs & List of Attendees Encl ML20151K7361988-04-15015 April 1988 Summary of Operating Reactors Events Meeting 88-15 on 880412.List of Attendees & Viewgraphs Encl ML20153A8551988-03-0909 March 1988 Summary of 880304 Meeting W/Util to Discuss 880122 Submittal Re Helium Circulator Failure & Recovery.Attendee List & Viewgraphs Encl ML20149L4981988-02-12012 February 1988 Summary of 871207 Meeting W/Utils in Bethesda,Md Re Licensees Revised Proposal to Comply W/Nrc Requirement for Simulation Facilities Under 10CFR55.45(b).List of Attendees & Util Simulation Facility Group Guideline Encl ML20147D8901988-01-12012 January 1988 Summary of 881202-03 Meeting W/Util,Inel & ORNL Re Status of Tech Spec Upgrade Program.Meeting Attendees & Listed Ref Encl ML20237D6921987-12-15015 December 1987 Summary of 871203 Meeting W/Util & Inel Re Protective Sys Setpoints in Tech Specs.List of Meeting Attendees Encl ML20237D2251987-12-15015 December 1987 Summary of 871204 Meeting W/Util Re Licensee Latest Proposals for Licensing Actions Concerning CRD Mechanism Temp Requalification & Position Instrumentation.List of Attendees & Related Info Encl ML20236B9121987-10-20020 October 1987 Summary of 871002 Meeting W/Util Re Specific Aspects of Util Approach to Conform w/10CFR55 for Facility.List of Attendees & Util Presentation Matl Encl ML20236A9731987-10-13013 October 1987 Summary of 870915-16 Meetings W/Four Facility Licensees in Bethesda,Md Re Proposal to Apply for NRC Approval for Simulation Facilities.Viewgraphs & Related Documents Encl ML20235Z5891987-10-0808 October 1987 Summary of 871006 Operating Reactor Events Meeting 87-34 Re Events Occurring Since 870929 Meeting.List of Attendees & Presentation Matl Encl ML20235H4401987-09-21021 September 1987 Summary of 870911 Meeting W/Util in Arlington,Tx Re Failure of Plant Circulator S/N C-2101 & Licensee Program to Recover from Failure.Licensee Rept, Preliminary Rept of Helium Circulator S/N C-2101 Damage & Justification... Encl ML20207S6271987-03-12012 March 1987 Summary of 870210 Meeting W/Util Re Emergency Diesel Generator Electrical Independence.List of Attendees Encl ML20210P0191987-02-0505 February 1987 Summary of 870113 Meeting W/Util Re Completion of Equipment Qualification Program & Program & Approvals Required for Plant Restart ML20212D8641986-12-24024 December 1986 Summary of 861209 Meeting W/Util Re Plant Emergency Electrical Power Sys.Fsar Commitment Re Emergency Diesel Generators revised.Marked-up Draft Rept Re Ac Standby Power Sys Encl ML20207B9781986-12-15015 December 1986 Summary of 861027-30 Meetings W/Util,Eg&G Idaho,Inc & ORNL at Site Re Tech Spec Upgrade Program.List of Attendees & NRC Comment Resolution Encl ML20214U7071986-12-0202 December 1986 Summary of 861120 Meeting W/Util,Ornl,Ga Technologies & Eg&G Re Temp Profiles for Equipment Qualification.List of Attendees & Viewgraphs Encl ML20214P8511986-11-25025 November 1986 Summary of 861105 Meeting W/Lasl Re Technical Evaluation Rept on Prestressed Concrete Reactor Vessel Tendons.Staff Requires Determination Re Listed Items.List of Attendees Encl ML20214Q0951986-11-25025 November 1986 Summary of 861027 Meeting W/Util to Discuss Schedule for Ie/Nrr Insp of Equipment Qualification Program.Attendance List & Viewgraphs Encl ML20197B8651986-10-28028 October 1986 Summary of 861001-02 Meetings W/Util,Inel & ORNL Re Staff Comments on Plant Tech Spec Upgrade Program.Nrc Comments Not Intended to Require Plant Mod or Changes to Licensing Basis of Plant ML20215L2101986-09-12012 September 1986 Summary of ACRS Subcommittee on Gas-Cooled Reactor Plants 860626 Public Meeting W/Nrc & Util in Washington,Dc Re Bases Used to Impose Requirements on Facility & Possibility of Severe Accidents.Attendance List & Viewgraphs Encl ML20215L2001986-09-12012 September 1986 Summary of ACRS Subcommittee on Fort St Vrain 860402 Public Meeting W/Nrc & Util at Facility Re Technical Problems Addressed During Recent Extended Outage & Mgt Charges. Attendance List & Viewgraphs Encl ML20206P5971986-08-15015 August 1986 Summary of 860724 Meeting W/Util,Inel,Wyle Labs,Sargent & Lundy & Tenera in Bethesda,Md Re Util Draft Documentation to Justify Qualification of safety-related Cabling at Plant. List of Attendees Encl ML20211Q6161986-07-23023 July 1986 Summary of Operating Reactor Events Meeting 86-25 on 860721 Re Events Since 860714 Meeting.List of Attendees,Discussion of Events & Status of Assignments Encl.Response Requested for Incomplete Assignments ML20207H0281986-07-21021 July 1986 Summary of 860627 Meeting W/Util Re Status of Tech Spec Upgrade Program.List of Attendees Encl ML20203B6181986-07-15015 July 1986 Summary of 860613 Meeting W/Util in Bethesda,Md Re Status of Plant Equipment Qualification Program.List of Attendees, Environ Qualification of Plant Safe Shutdown Cable & Cable Qualification Binders Encl ML20199K4911986-06-27027 June 1986 Summary of 860604 Meeting W/Util Re Status of Licensing Actions.List of Attendees,Summary of NRC Responses to Actions & Summary of Actions Encl ML20205S2341986-06-0101 June 1986 Summary of 860502 Meeting W/Util & Inel in Bethesda,Md Re Equipment Qualification Program Problem Areas.Attendees List & Supporting Documentation Encl ML20198H4561986-05-27027 May 1986 Summary of 860505 Meeting W/Util Re Status of Equipment Qualification Program.Considerable Work Remains Before Approval of Full Power Operation Can Be Granted.Staff Recommended Util Continue to Complete Program ML20197F1691986-05-0808 May 1986 Summary of Operating Reactors Events 860428 Meeting W/Listed Divs Re Chernobyl Nuclear Accident & Events at Us Reactors ML20197F6541986-05-0707 May 1986 Summary of 860423-24 Meetings W/Util,Ga Technologies & S&W at Site Re Fuel Block Cracking,Bldg 10 Const,Seismic Instrumentation,Pcrv Tendons & Integrated Leak Rate Testing. Attendance List & Viewgraphs Encl ML20203E8051986-04-18018 April 1986 Summary of Operating Reactors Events Meeting 86-12 on 860414 Re Events Since 860407.List of Attendees,Viewgraphs & Supporting Documentation Encl ML20205J9221986-04-18018 April 1986 Summary of ACRS 312th Meeting on 860410-12 in Washington,Dc Re Proposed NRC Safety Goal Policy Statement & Need for Guidance in Environ & PRA for Quantification of Public Health Risks to Nearby Populations ML20205S2591986-04-10010 April 1986 Summary of 860326 Site Meeting W/Util,Dibenedetto Assoc,Inc, Sandia & Sargent & Lundy Re Status of Qualifications of 10CFR50.49 Cables & Maint Records History Review.Viewgraphs & Attendees List Encl ML20141B7451986-03-28028 March 1986 Summary of 860313 Meeting W/Util in Arlington,Tx Re Tech Spec Limiting Condition for Operation 4.1.9 Covering Frequency of Manipulation of Reactor Controls.Supporting Documentation Encl ML20142A0661986-03-14014 March 1986 Summary of 860116 Meeting W/Util,Training Co,Inc & SM Stoller Corp Re Performance Enhancement Program. Viewgraphs Encl ML20141P1771986-03-14014 March 1986 Summary of 860130 Meeting W/Util,Inel,Tenera & Sargent & Lundy Re Equipment Qualification (EQ) Program.List of Attendees,Test Profiles & Review of Sample EQ Package Encl ML20142A0441986-03-12012 March 1986 Summary of 860221 Onsite Meeting W/Util,Inel,D Benedetto Assoc,S&W,Tenera,Ned & NPD Re Equipment Qualification Program & Steam Line Rupture Detection & Isolation Sys ML20138R7331985-10-31031 October 1985 Summary of 851029 Meeting W/Util & ORNL Re Schedule Extension to Equipment Qualification Rule.List of Attendees, Agenda & Matls Presented by Util Encl ML20138P0081985-10-21021 October 1985 Summary of Operating Reactors Events Meeting 85-19 on 851007 W/Ofc Directors,Div Directors & Representatives on Events Which Occurred Since Last Meeting on 851007 ML20134F3081985-08-15015 August 1985 Summary of 850722-26 Meetings W/Util & Ga Technologies Re Tech Spec Upgrade.List of Attendees Encl ML20129E6721985-05-28028 May 1985 Summary of 850803 Meeting W/Util & Ga Technologies Re CRD Mechanism Tech Spec Problem.List of Attendees Encl ML20128P6271985-05-23023 May 1985 Summary of 850516 Meeting W/Util Re Emergency Electrical Power Sys Concerns Resulting from Staff Evaluation of Problems from Testing Emergency Diesel Generators on 841218. Justification for Continued Operation Requested 1996-12-03
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May 23, 1985 MEMORANDUM FOR: E. G. Tourigny, Acting Chief Operating Reactors Branch #3 Division of Licensing FROM: Kenneth L. Heitner, Project Manager Operating Reactors Branch #3 Division of Licensing
SUBJECT:
SUMMARY
OF MAY 16, 1985 MEETING WITH PUBLIC SERVICE COMPANY OF COLORADO CONCERNING EMERGENCY ELECTRICAL POWER SYSTEMS AT FORT ST. VRAIN
- The purpose of this meeting was to discuss staff concerns about the emergency electrical power systems at the Fort St. Vrain Nuclear Generating Station.
These concerns are a result of the staff's evaluation of the problems encountered during testing of the emergency diesel generators (EDGs) on December 18, 1984 The attendees at this meeting are listed in Enclosure I.
The staff stated at the beginning of the meeting that their approach was to review the plant against the Fort St. Vrain FSAR. Their goal was to understand if the plant was consistent with the FSAR. They also sought to evaluate the plant against three fundamental criteria:
- 1. Redundancy
- 2. Independence, and
- 3. Single Failure Their goal was to determine if both the emergency AC and DC power systems were redundant, that the redundant trains were independent of each other, and the power system as a whole met the single failure criteria.
4KV Rapid Transfer System The first staff concern centered on the rapid transfer system for the 4KV buses.
The staff stated that they did not understand how the system would respond to a fault in 4KV bus 1 or 3 when the faulted bus also was tied to 4KV bus 2.
The potential concern here was that the loss of 2 out of 3 4KV buses would cause the EDGs to start, instead of automatically transferring to the auxiliary service transformer. Selection of the EDGs to supply emergency power was undesirable if an offsite power source was still available. The licensee respnded that they would provide an answer to this question.
Independence of Redundant Trains The staff noted that in numerous cases Fort St. Vrain eletric power system drawings indicated that the redundant emergency electric power trains were not independent. Specific examples that were discussed included:
8506030585 850523 PDR ADOCK 05000267-P- PDR
l i
- Logic controlling the emergency diesel generator (EDGs) breakers
- Logic controlling the 480 volt emergency bus tie breakers, r
The staff's initial conclusion was that logic permissives and interlocks from one train were required to close EDG the breaker for the second train.
The existence of such. logic permissives did not assure independent automatic
- operation of the redundant EDGs. However, the staff stated that they believed that the lack of independence in the logic circuits did not compromise indepen-dence of the system when operated in the manual mode. The licensee responded that they would evaluate this problem and provide their evaluation to the staff.
They would potentially address short term justification for continued operation as'well as long term electric power system changes.
Testing of the 4KV Rapid Transfer System The staff inquired if the.4KV rapid transfer system was tested and if this requirement was part of the plant Technical Specifications. The licensee 4
- responded they would provide this information.
4
- Switchgear Powering The DC power systems for the plant switchgear were discussed. The licensee noted that all switchgear was provided with DC power from both battery supplies.
i However, these circuits were seperately fused at the switchgear power entry cubicle. These circuits also had breakers at the DC distribution cabinet.
A fuse is provided at the switchgear power entry cubicle in one of the two I circuits. In the event of a DC power loss or fuse failure, DC power is administratively restored by replacing the fuse in the appropriate power circuit. The staff inquired how loss of DC voltage to the switchgear was '
indicated to the operators, both at the switchgear and in the control room.
The licensee responded that they would provide this information.
Other Topics Discussed Separation - The licensee stated that there was at least 6 inch separation or a suitable burncr between (their divisional. bus or loop) cables. However, l- some buses had no loop association. If a non safety related cable ran with safety related cable in the same tray, it could not compromise the separation criteria.
Current Limitors - The licensee stated increased fault current from the
- i. Introduction of larger transformers in certain circuits required the use of
. current limiting reactors.
Diesel Generator Protection - The licensee stated that, in an emergency, the diesel generator would trip only on overspeed or differential current. Other protective circuits were activated only in the test mode, i
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Concluding Remarks The staff stated that their concerns about the independence of the control logic for the redundant emergency electric power systems at Fort St. Vrain were a significant safety issue. The staff further stated that Public Service of Colorado should respond promptly with a justification for continued operation prior to plant restart.
The licensee responded that they would address these concerns and provide the information noted above.
Kenneth L. Heitner, Project Manager Operating Reactors Branch #3, DL
Enclosure:
As stated DISTRIBUTION:
DOCKET FILE ORB #3 Rdg KHeitner PKreutzer OR8#3:DL ORB #3:DL P 'er KHeitner:dd ETourigny 5 /85 5/23/85 5/n /85
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D MEETING
SUMMARY
DISTRIBUTION Licensee: Public Service Company
- Copiesalso'senttothosepeopleonservice(cc)listforsubjectplant(s).
W NRC PDR L PDR
.0RB#3 Meeting Sumary Fil e Project Manager - KHeitner ETourigny, Acting-BGrimes OELD EJordan, IE ACRS-10 PMorriette NRC Meeting
Participants:
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