ML20083H726
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| ML20083H726 | |
| Person / Time | |
|---|---|
| Site: | National Bureau of Standards Reactor |
| Issue date: | 01/06/1984 |
| From: | Rozier Carter NATIONAL INSTITUTE OF STANDARDS & TECHNOLOGY (FORMERL |
| To: | Bernard H NRC |
| References | |
| NUDOCS 8401130325 | |
| Download: ML20083H726 (1) | |
Similar Documents at National Bureau of Standards Reactor | |
|---|---|
Category:CORRESPONDENCE-LETTERS
MONTHYEARML20216F6621999-09-20020 September 1999
[Table view]Discusses 990804 Request for Renewal of Route to Be Used for Transport of Sf from Natl Inst of Stds & Technology, Gaithersburg,Md to Doe,Savannah River Site Near Aiken,Sc. Route in Encl 1 Meets Regulatory Requirements of 10CFR73.37 ML20210F6581999-07-29029 July 1999 Responds to Providing Comments on Proposed FY99 Annual Fee Rule & Requesting That NRC Reject Proposed Annual Fee Increases for non-power Reactors.Request for Exemption from 10CFR171 Annual Fee Requirements Denied ML20196K4551999-07-0101 July 1999 Forwards Ballot for ANS-1, Conduct of Critical Experiments. Scope of Standard Has Been Reviewed & Has Been Approved with Comments & No Objections ML20202J2301999-02-0202 February 1999 Forwards Ballots for ANS-10.2, Portability of Scientific & Engineering Software & ANS-15.4, Selection & Training of Personnel for Research Reactors. Author Voted Not Approved to ANS-10.2 & Approved to ANS-15.4 ML20199G7981999-01-21021 January 1999 Informs That Funding for Conversion of NIST Reactor Will Not Be Available at Any Time in Foreseeable Future.Schedule for Conversion of Nbsr Cannot Be Submitted at Present Time ML20195H8881998-11-16016 November 1998 Forwards Insp Rept 50-184/98-202 on 981006-07.No Violations Noted ML20216C5981998-05-12012 May 1998 Forwards Certificates To,Pa Bobik,Sc Pierce & SG Slaughter, Newly Licensed Individuals ML20217A1451998-04-16016 April 1998 Informs That on 980306 NRC Administered Initial Exam Rept 50-184/OL-98-01 to Employees of Facility Who Applied for License to Operate Natl Inst of Stds & Technology Reactor ML20216H1231998-04-16016 April 1998 Forwards Results of Operator Initial Exam Conducted at National Institute of Standards & Technology on 980408-09. W/O Encls ML20216J4371998-04-16016 April 1998 Forwards Initial Exam Rept 50-184/OL-98-01 for Week of 980306.NRC Administered Initial Exams to Employees of Facility Who Applied for License to Operate NIST Reactor. W/O Encls ML20217F3711998-03-25025 March 1998 Informs of Arrangements Made for Administration of Operator Licensing Exams,Scheduled for Wk of 980406.Matl Already Provided by T Raby Will Be Used ML20199J5881998-01-21021 January 1998 Informs That Funding for Conversion of NIST Reactor to LEU Will Not Be Available at Any Time in Foreseeable Future ML20198R3601998-01-16016 January 1998 Forwards Insp Rept 50-184/97-202 on 971006-09.No Violations Noted ML20203C9601997-09-29029 September 1997 Submits Advance Notification of Sf Shipment from Natl Inst of Stds & Technology,Doc to Doe.Shipment Will Consist of Three Loaded tractor-trailers,traveling as Single Convoy W/Escorts.Further Description of Shipment Encl ML20217B0891997-09-0909 September 1997 Forwards Ballots for ANS-6.1.2,Rev, Neutron & Gamma-Ray Cross Sections for Nuclear Radiation Protection Calculations NPP, ANS6.3.1,Reaffirmation, Program for Testing Radiation Shields in Lwr ML20198E9941997-08-0505 August 1997 Informs That Responsibility for Non-Power Reactor Insp Program Has Been Transferred from Regional Ofc to Nrr. Addresses Listed ML20149L4721997-07-30030 July 1997 Responds to 961015 & 970619 Requests for Approval of Route to Be Used for Transport of Sf from Natl Inst of Stds & Technology to Doe.Info on Law Enforcement Arrangements & Map of Route Encl ML20149E7651997-07-11011 July 1997 Forwards Insp Rept 50-184/97-201 on 970616-18.No Violations Noted ML20148U3851997-06-19019 June 1997 Requests Approval of Proposed Route as Outlined in .Route Must Be Approved No Later than End of Jul 1997 in Order to Make Timely Preparations for Shipments in Sept. Copies of Past Correspondence Encl ML20141J9591997-04-30030 April 1997 Forwards Revised Page of Nbsr Emergency Plan.Change to Plan Made in Order to Conform to Recent Change in Nbsr Tech Specs Authorized by Commission ML20147H3621997-03-31031 March 1997 Forwards Amend 8 to License TR-5 & Safety Evaluation.Amend Changes TSs to Change Name of Organization from Reactor Radiation Division to NIST Ctr for Neutron Research ML20138H5681996-12-30030 December 1996 Forwards Insp Rept 50-184/96-03 on 961105-08.No Violations Noted ML20129E3931996-10-15015 October 1996 Requests Approval of Proposed Route for Shipment of Research Reactor Spent Fuel ML20129G7081996-09-30030 September 1996 Forwards Ballot for ANS-15.2, Quality Control for Plate- Type Uranium-Aluminum Fuel Elements ML20100C8291995-12-18018 December 1995 Responds to NRC Requesting Info Re Features & Provisions in Effect at NIST to Control Access to Neutron Beams ML20071F8771994-06-30030 June 1994 Forwards Thank You Ltr Re Keeping Exposures Below Regulatory Limits ML20210F6731994-03-23023 March 1994 Provides Notice That After Careful Consideration,Commission Decided to Reinstate Annual Fee Exemption for Nonprofit Educational Institutions.Nrc Will Cancel Fy 1993 Annual Fee Invoices for Licensed Activities Exempt Under Final Rule ML20059E7651994-01-0404 January 1994 Informs That as Indicated in Encl Ltr from Doe,Funding for Conversion of NIST Reactor to LEU Fuel Not Available & That Schedule for Conversion of Nbsr Cannot Be Submitted at This Time ML20056E0661993-08-0303 August 1993 Forwards Results for Operator Initial Exam on 930713. W/O Encl ML20056E4411993-08-0303 August 1993 Forwards Initial Exam Rept 50-184/OL-93-01 on 930713 ML20127C8151993-01-0808 January 1993 Forwards to DOE Indicating That Funds for Converting Reactor to Low Enriched U Unavailable in DOE FY92 Budget & Request Has Not Been Submitted in DOE FY93 & FY94 Planning Budgets ML20126J5731992-12-23023 December 1992 Forwards Safeguards Insp Rept 50-184/92-02 on 921208-09. No Safety Concerns or Violations Noted ML20099E9181992-07-31031 July 1992 Requests Review of Encl Proposal for New Liquid Hydrogen Cold Source to Replace Existing Heavy Water Source. Development of New Source Represents Major Breakthrough for Us Science & Technology ML20091M6331992-01-24024 January 1992 Forwards DOE to NIST Advising That Funds for Conversion of Reactor to Low Enriched U Unavailable in FY93 & FY94.Schedule for Conversion Cannot Be Submitted at Present Time ML20081L8191991-07-0303 July 1991 Advises That on 910625 While Remotely Inserting New Fuel Element Into Position in Core,Element Fell Off Tool Onto Top Grid.Element Retrieved Undamaged.Element Cleaned & Minor External Scratches Polished & Reinserted Into Postion ML20070K0111991-03-11011 March 1991 Advises That Funding for Conversion of Natl Inst of Stds & Technology Reactor to LEU Fuel Not Available ML20059M6701990-09-28028 September 1990 Advises That Shim 4 Did Not Return to Normal Position on 900918.Bearing-seal Assemblies Replaced Using Stainless Steel Bearings ML20059H2121990-09-0707 September 1990 Informs of Error in Scheduled Quarterly Surveillance Test 5.6.1.Test Inadvertently Scheduled for Aug Rather than May, 1990.Error Occurred Due to Surveillance Date Changes Necessitated by Extended Reactor Shutdown ML20056A2651990-08-0101 August 1990 Provides Addl Info on Request for Change to Section 6.2 of Tech Specs.Basic Design Considerations Unchanged Re Performance,Matl,Design Pressure & Temp & Fabrication Code Requirements ML20055H3311990-07-23023 July 1990 Certifies That Congressional Appropriation for Decommissioning of Reactor Will Be Requested When Necessary. Amount of Appropriation Will Be Based on FY90 Estimated Cost ML20055G8441990-07-19019 July 1990 Forwards Safety Insp Rept 50-184/90-03 on 900605-07 & 26.No Violations Noted ML20055H3281990-07-17017 July 1990 Forwards Certification Verifying That Congressional Appropriation Will Be Requested Re Decommissioning Reactor. Decommissioning Estimated to Require Min of Five Yrs ML20012A4701990-03-0202 March 1990 Forwards Proposed Addendum 1 to Physical Security Plan,For Approval.Addendum Upgrades Plan Per Recommendations Contained in 1987 Nonpower Reactor Sabotage Study (U). W/O Encl ML20011E6751990-02-14014 February 1990 Advises That Funding for Conversion of NIST Reactor to Low Enriched U Fuel Unavailable,Per Encl DOE 900206 Ltr.Schedule for Conversion of NIST Reactor to Low Enriched U Cannot Be Submitted ML19332B8721989-11-15015 November 1989 Forwards Revised Section 7.5(c),Step 2,Page 14 of Emergency Plan,Involving Use of Search or Surveillance or Both as Alternate Method of Accounting for Personnel in Confinement Bldg During Site Area Emergency ML20245J2591989-04-26026 April 1989 Ack Receipt of Informing NRC of Steps Taken to Correct Violations Noted in Insp Rept 50-184/89-01 ML20247D6571989-03-24024 March 1989 Responds to Re Low Level Radiological Release from NIST During Aug-Oct 1987.Encl Insp Rept 50-184/89-01 Notes That Incident Involving Two Separate,But Related Events Pose Threat to Public Health or Safety ML20246P3111989-03-22022 March 1989 Advises That Research & Test Reactor Seminar Scheduled for 890418 & 19 in King of Prussia,Pa.Topics to Be Discussed Include,Nrc Research Reactor Insp Program,Operator Licensing & Fitness for Duty.Info Re Lodging Encl ML20063Q0541988-11-29029 November 1988 Discusses Transfer of Activities,Responsibilities & Obligations of Nbs to Natl Institute of Stds & Technology. Designation of Reactor Will Continue to Be Nbsr ML20154K0901988-09-13013 September 1988 Forwards Safety Insp Rept 50-184/88-02 on 880809-11.No Violations Noted 1999-09-20 Category:INCOMING CORRESPONDENCE MONTHYEARML20199G7981999-01-21021 January 1999
[Table view]Informs That Funding for Conversion of NIST Reactor Will Not Be Available at Any Time in Foreseeable Future.Schedule for Conversion of Nbsr Cannot Be Submitted at Present Time ML20199J5881998-01-21021 January 1998 Informs That Funding for Conversion of NIST Reactor to LEU Will Not Be Available at Any Time in Foreseeable Future ML20203C9601997-09-29029 September 1997 Submits Advance Notification of Sf Shipment from Natl Inst of Stds & Technology,Doc to Doe.Shipment Will Consist of Three Loaded tractor-trailers,traveling as Single Convoy W/Escorts.Further Description of Shipment Encl ML20148U3851997-06-19019 June 1997 Requests Approval of Proposed Route as Outlined in .Route Must Be Approved No Later than End of Jul 1997 in Order to Make Timely Preparations for Shipments in Sept. Copies of Past Correspondence Encl ML20141J9591997-04-30030 April 1997 Forwards Revised Page of Nbsr Emergency Plan.Change to Plan Made in Order to Conform to Recent Change in Nbsr Tech Specs Authorized by Commission ML20129E3931996-10-15015 October 1996 Requests Approval of Proposed Route for Shipment of Research Reactor Spent Fuel ML20100C8291995-12-18018 December 1995 Responds to NRC Requesting Info Re Features & Provisions in Effect at NIST to Control Access to Neutron Beams ML20071F8771994-06-30030 June 1994 Forwards Thank You Ltr Re Keeping Exposures Below Regulatory Limits ML20059E7651994-01-0404 January 1994 Informs That as Indicated in Encl Ltr from Doe,Funding for Conversion of NIST Reactor to LEU Fuel Not Available & That Schedule for Conversion of Nbsr Cannot Be Submitted at This Time ML20127C8151993-01-0808 January 1993 Forwards to DOE Indicating That Funds for Converting Reactor to Low Enriched U Unavailable in DOE FY92 Budget & Request Has Not Been Submitted in DOE FY93 & FY94 Planning Budgets ML20099E9181992-07-31031 July 1992 Requests Review of Encl Proposal for New Liquid Hydrogen Cold Source to Replace Existing Heavy Water Source. Development of New Source Represents Major Breakthrough for Us Science & Technology ML20091M6331992-01-24024 January 1992 Forwards DOE to NIST Advising That Funds for Conversion of Reactor to Low Enriched U Unavailable in FY93 & FY94.Schedule for Conversion Cannot Be Submitted at Present Time ML20081L8191991-07-0303 July 1991 Advises That on 910625 While Remotely Inserting New Fuel Element Into Position in Core,Element Fell Off Tool Onto Top Grid.Element Retrieved Undamaged.Element Cleaned & Minor External Scratches Polished & Reinserted Into Postion ML20070K0111991-03-11011 March 1991 Advises That Funding for Conversion of Natl Inst of Stds & Technology Reactor to LEU Fuel Not Available ML20059M6701990-09-28028 September 1990 Advises That Shim 4 Did Not Return to Normal Position on 900918.Bearing-seal Assemblies Replaced Using Stainless Steel Bearings ML20059H2121990-09-0707 September 1990 Informs of Error in Scheduled Quarterly Surveillance Test 5.6.1.Test Inadvertently Scheduled for Aug Rather than May, 1990.Error Occurred Due to Surveillance Date Changes Necessitated by Extended Reactor Shutdown ML20056A2651990-08-0101 August 1990 Provides Addl Info on Request for Change to Section 6.2 of Tech Specs.Basic Design Considerations Unchanged Re Performance,Matl,Design Pressure & Temp & Fabrication Code Requirements ML20055H3311990-07-23023 July 1990 Certifies That Congressional Appropriation for Decommissioning of Reactor Will Be Requested When Necessary. Amount of Appropriation Will Be Based on FY90 Estimated Cost ML20055H3281990-07-17017 July 1990 Forwards Certification Verifying That Congressional Appropriation Will Be Requested Re Decommissioning Reactor. Decommissioning Estimated to Require Min of Five Yrs ML20012A4701990-03-0202 March 1990 Forwards Proposed Addendum 1 to Physical Security Plan,For Approval.Addendum Upgrades Plan Per Recommendations Contained in 1987 Nonpower Reactor Sabotage Study (U). W/O Encl ML20011E6751990-02-14014 February 1990 Advises That Funding for Conversion of NIST Reactor to Low Enriched U Fuel Unavailable,Per Encl DOE 900206 Ltr.Schedule for Conversion of NIST Reactor to Low Enriched U Cannot Be Submitted ML19332B8721989-11-15015 November 1989 Forwards Revised Section 7.5(c),Step 2,Page 14 of Emergency Plan,Involving Use of Search or Surveillance or Both as Alternate Method of Accounting for Personnel in Confinement Bldg During Site Area Emergency ML20063Q0541988-11-29029 November 1988 Discusses Transfer of Activities,Responsibilities & Obligations of Nbs to Natl Institute of Stds & Technology. Designation of Reactor Will Continue to Be Nbsr ML20154P3121988-05-18018 May 1988 Forwards Addl Info Re Application for Amend to Nbsr Tech Specs Per NRC 871217 Request ML20151U3461988-04-21021 April 1988 Forwards Corrected Operations Rept 40,1987, Correcting Typos ML20196E8881988-02-25025 February 1988 Informs That Funding for Conversion of Nbs Reactor to Low Enriched U Fuel Not Available.Schedule for Conversion of Nbs Reactor Cannot Be Submitted at This Time ML20237J2001987-08-11011 August 1987 Forwards Study Rept, Penetrations in Reactor Bldg for New Hot Plug Storage,Hx Vault & Neutron Beam Tubes, Supporting Nbs 870622 Application for Amend to Tech Specs ML20207R7561987-03-10010 March 1987 Submits Addl Info Re Nbs Reactor Use of Highly Enriched Fuel,Per 870211 Request.Majority of Programs at Nbs Reactor Require Current Enrichment Levels.Lowering of Enrichment Level Below 80 % Unacceptable ML20212K3991987-03-0404 March 1987 Informs That Funding for Conversion of Nbs Reactor to Low Enriched U Fuel Not Available,Per Encl DOE . Schedule for Conversion of Nbs Reactor Cannot Be Submitted at Present ML20212L3011987-02-27027 February 1987 Forwards Addl Info Re 861230 Unique Purpose Exemption Request,Including Discussion of Facility Contributions in Natl Interest & Demonstration That Reactor Could Not Perform Function W/O high-enriched U ML20210K7411986-09-19019 September 1986 Requests Exemption from Conversion from High Enriched U Fuel to Low Enriched U Fuel.Conversion Would Reduce Unique Reactor Purpose of Providing Natl Measurement Capability to Address Large Variety of Important Research Areas ML20128H2261985-05-10010 May 1985 Responds to Violations Noted in Insp Rept 50-184/85-01. Corrective Actions:Personnel Posted Inside Process Room.Need for Action Disputed ML20115F2941985-04-15015 April 1985 Requests 2-month Extension Until 850731 to Complete Implementation of New Emergency Plan,Due to Unexpected Delays in Completing Reactor Mods ML20099L3961984-11-23023 November 1984 Withdraws 840921 Request to Review Proposed Cold Neutron Source Experiment,Per 841030 Discussion.Experiment Satisfies 10CFR50.59 for Changes Permitted W/O Prior NRC Approval ML20098E1261984-09-21021 September 1984 Responds to 840823 Request for Schedule to Implement New Emergency Response Plan.Preparation of Procedures & Training to Implement Emergency Response Plan Expected to Be Completed in May 1985 ML20098G3581984-09-21021 September 1984 Forwards for Review & Approval, SAR on D2O Cold Neutron Source for Nbs Reactor ML20083H7261984-01-0606 January 1984 Advises That Magnetically Coupled Contacts on mercury-wetted Contact Type Relays Will Open & Initiate Scram.Currently, Four Subj Relays Installed in Reactor ML20072L3361983-03-18018 March 1983 Forwards Operations Rept 34,Jul-Dec 1982 ML20071Q6791982-11-0404 November 1982 Responds to NRC Re Violations Noted in IE Insp Rept 50-184/82-02.Corrective Actions:Subj Individual Checked Out on Pneumatic Facility & Was on Approved List of Users ML20063P1761982-09-30030 September 1982 Forwards Operations Rept 33,Jan-June 1982 ML20071M6731982-09-22022 September 1982 Advises That EIS Re Licensing Renewal & Power Increase Scheduled for Fr Publication on 820924.Public Review Period Will Terminate on 821025 ML20052G4821982-05-14014 May 1982 Discusses Proposed Relocation of Emergency Control Station to Basement of Reactor Bldg.New Location Will Be More Functional & Accessible ML20054C6191982-04-12012 April 1982 Confirms Understanding Re Removal of Inner & Outer Plenna Check Valves.Valve Removal Comes Under Provisions of 10CFR50.59 & Requires No Prior NRC Authorization ML20050B5341982-03-30030 March 1982 Forwards Semiannual Operating Rept,Jul-Dec,1981. ML20041C5311982-02-25025 February 1982 Advises of No Comments Re Renewal of License TR-5 for Operation of Nbs Reactor in Gaithersburg,Md ML20049H7301982-02-24024 February 1982 Verifies Official Filing of NUREG-0877,EIS for Facility. EPA Scheduled Publication of Notice of Availability in Fr on 820226.Public Review Period Terminates 820412 ML20040C6041982-01-26026 January 1982 Submits Environ Info in Response to Telcon.Tritium Releases to Sanitary Sewers for 1975-1981 & Sensitivity of Environ Monitoring Listed ML20010J3021981-09-29029 September 1981 Forwards Answers to First 14 NRC Questions Re Environ Rept. Encl Rept, Geology,Seismology & Hydrology of Nbs Research Reactor Site,Gaithersburg,Md, Contains Answers to Questions 15 & 16 ML20010G1871981-09-10010 September 1981 Forwards Semiannual Operating Rept for Jan-June 1981 ML19343C4451981-03-20020 March 1981 Forwards Operations Rept 30 for Jul-Dec 1980. 1999-01-21 Category:OTHER U.S. GOVERNMENT AGENCY/DEPARTMENT TO NRC MONTHYEARML20059M6701990-09-28028 September 1990
[Table view]Advises That Shim 4 Did Not Return to Normal Position on 900918.Bearing-seal Assemblies Replaced Using Stainless Steel Bearings ML20059H2121990-09-0707 September 1990 Informs of Error in Scheduled Quarterly Surveillance Test 5.6.1.Test Inadvertently Scheduled for Aug Rather than May, 1990.Error Occurred Due to Surveillance Date Changes Necessitated by Extended Reactor Shutdown ML20056A2651990-08-0101 August 1990 Provides Addl Info on Request for Change to Section 6.2 of Tech Specs.Basic Design Considerations Unchanged Re Performance,Matl,Design Pressure & Temp & Fabrication Code Requirements ML20055H3311990-07-23023 July 1990 Certifies That Congressional Appropriation for Decommissioning of Reactor Will Be Requested When Necessary. Amount of Appropriation Will Be Based on FY90 Estimated Cost ML20055H3281990-07-17017 July 1990 Forwards Certification Verifying That Congressional Appropriation Will Be Requested Re Decommissioning Reactor. Decommissioning Estimated to Require Min of Five Yrs ML20012A4701990-03-0202 March 1990 Forwards Proposed Addendum 1 to Physical Security Plan,For Approval.Addendum Upgrades Plan Per Recommendations Contained in 1987 Nonpower Reactor Sabotage Study (U). W/O Encl ML20011E6751990-02-14014 February 1990 Advises That Funding for Conversion of NIST Reactor to Low Enriched U Fuel Unavailable,Per Encl DOE 900206 Ltr.Schedule for Conversion of NIST Reactor to Low Enriched U Cannot Be Submitted ML19332B8721989-11-15015 November 1989 Forwards Revised Section 7.5(c),Step 2,Page 14 of Emergency Plan,Involving Use of Search or Surveillance or Both as Alternate Method of Accounting for Personnel in Confinement Bldg During Site Area Emergency ML20063Q0541988-11-29029 November 1988 Discusses Transfer of Activities,Responsibilities & Obligations of Nbs to Natl Institute of Stds & Technology. Designation of Reactor Will Continue to Be Nbsr ML20154P3121988-05-18018 May 1988 Forwards Addl Info Re Application for Amend to Nbsr Tech Specs Per NRC 871217 Request ML20151U3461988-04-21021 April 1988 Forwards Corrected Operations Rept 40,1987, Correcting Typos ML20196E8881988-02-25025 February 1988 Informs That Funding for Conversion of Nbs Reactor to Low Enriched U Fuel Not Available.Schedule for Conversion of Nbs Reactor Cannot Be Submitted at This Time ML20237J2001987-08-11011 August 1987 Forwards Study Rept, Penetrations in Reactor Bldg for New Hot Plug Storage,Hx Vault & Neutron Beam Tubes, Supporting Nbs 870622 Application for Amend to Tech Specs ML20207R7561987-03-10010 March 1987 Submits Addl Info Re Nbs Reactor Use of Highly Enriched Fuel,Per 870211 Request.Majority of Programs at Nbs Reactor Require Current Enrichment Levels.Lowering of Enrichment Level Below 80 % Unacceptable ML20212K3991987-03-0404 March 1987 Informs That Funding for Conversion of Nbs Reactor to Low Enriched U Fuel Not Available,Per Encl DOE . Schedule for Conversion of Nbs Reactor Cannot Be Submitted at Present ML20212L3011987-02-27027 February 1987 Forwards Addl Info Re 861230 Unique Purpose Exemption Request,Including Discussion of Facility Contributions in Natl Interest & Demonstration That Reactor Could Not Perform Function W/O high-enriched U ML20210K7411986-09-19019 September 1986 Requests Exemption from Conversion from High Enriched U Fuel to Low Enriched U Fuel.Conversion Would Reduce Unique Reactor Purpose of Providing Natl Measurement Capability to Address Large Variety of Important Research Areas ML20128H2261985-05-10010 May 1985 Responds to Violations Noted in Insp Rept 50-184/85-01. Corrective Actions:Personnel Posted Inside Process Room.Need for Action Disputed ML20115F2941985-04-15015 April 1985 Requests 2-month Extension Until 850731 to Complete Implementation of New Emergency Plan,Due to Unexpected Delays in Completing Reactor Mods ML20099L3961984-11-23023 November 1984 Withdraws 840921 Request to Review Proposed Cold Neutron Source Experiment,Per 841030 Discussion.Experiment Satisfies 10CFR50.59 for Changes Permitted W/O Prior NRC Approval ML20098E1261984-09-21021 September 1984 Responds to 840823 Request for Schedule to Implement New Emergency Response Plan.Preparation of Procedures & Training to Implement Emergency Response Plan Expected to Be Completed in May 1985 ML20098G3581984-09-21021 September 1984 Forwards for Review & Approval, SAR on D2O Cold Neutron Source for Nbs Reactor ML20083H7261984-01-0606 January 1984 Advises That Magnetically Coupled Contacts on mercury-wetted Contact Type Relays Will Open & Initiate Scram.Currently, Four Subj Relays Installed in Reactor ML20072L3361983-03-18018 March 1983 Forwards Operations Rept 34,Jul-Dec 1982 ML20071Q6791982-11-0404 November 1982 Responds to NRC Re Violations Noted in IE Insp Rept 50-184/82-02.Corrective Actions:Subj Individual Checked Out on Pneumatic Facility & Was on Approved List of Users ML20063P1761982-09-30030 September 1982 Forwards Operations Rept 33,Jan-June 1982 ML20071M6731982-09-22022 September 1982 Advises That EIS Re Licensing Renewal & Power Increase Scheduled for Fr Publication on 820924.Public Review Period Will Terminate on 821025 ML20052G4821982-05-14014 May 1982 Discusses Proposed Relocation of Emergency Control Station to Basement of Reactor Bldg.New Location Will Be More Functional & Accessible ML20054C6191982-04-12012 April 1982 Confirms Understanding Re Removal of Inner & Outer Plenna Check Valves.Valve Removal Comes Under Provisions of 10CFR50.59 & Requires No Prior NRC Authorization ML20050B5341982-03-30030 March 1982 Forwards Semiannual Operating Rept,Jul-Dec,1981. ML20041C5311982-02-25025 February 1982 Advises of No Comments Re Renewal of License TR-5 for Operation of Nbs Reactor in Gaithersburg,Md ML20049H7301982-02-24024 February 1982 Verifies Official Filing of NUREG-0877,EIS for Facility. EPA Scheduled Publication of Notice of Availability in Fr on 820226.Public Review Period Terminates 820412 ML20040C6041982-01-26026 January 1982 Submits Environ Info in Response to Telcon.Tritium Releases to Sanitary Sewers for 1975-1981 & Sensitivity of Environ Monitoring Listed ML20010J3021981-09-29029 September 1981 Forwards Answers to First 14 NRC Questions Re Environ Rept. Encl Rept, Geology,Seismology & Hydrology of Nbs Research Reactor Site,Gaithersburg,Md, Contains Answers to Questions 15 & 16 ML20010G1871981-09-10010 September 1981 Forwards Semiannual Operating Rept for Jan-June 1981 ML19343C4451981-03-20020 March 1981 Forwards Operations Rept 30 for Jul-Dec 1980. ML19347B2891980-09-26026 September 1980 Forwards Semiannual Operating Rept,Jan-June 1980. ML19340E1961980-04-0808 April 1980 Forwards Semiannual Operating Rept 28,Jul-Dec 1979. ML19309D0361980-02-15015 February 1980 Responds to NRC 800122 Ltr Re Violations Noted in IE Insp Rept 50-184/79-05.Corrective Actions:Attention Drawn to Existing Requirements & Periodic Surveys of Outside Areas Implemented ML19309C7231980-02-15015 February 1980 Requests That IE Insp Rept 50-184/80-01 Be Withheld (Ref 10CFR2.790).Info Contained in Rept Reveals Amount,Type & Location of Inventory of SNM ML19262A0641979-10-19019 October 1979 Forwards Executed Copy of Amend 12 to Indemnity Agreement D-9 ML19208D5211979-09-28028 September 1979 Forwards Operations Rept 27, Jan-June 1979 ML19207B4571979-08-15015 August 1979 Discusses Irregularities in Regulatory Rod Movements.Cause Is Unknown But Short Range Binding in Neighborhood of 25 Degrees May Result from Faulty Bearings on Shim Arm Shaft. Further Tests Are Planned.Reactor Will Remain Shut Down ML19276G3311979-05-15015 May 1979 Forwards Executed Amend 11 to Indemnity Agreement D-9 ML20062D3021978-11-0707 November 1978 on 781102 During Routine Test,Shim Arm 1 Had Drop Time in Excess of Acceptable Range Caused by Slightly Longer Clutch Release.Assembly Removed & Snap Ring on Armature Hub Replaced in Favor of a More Uniform Support ML20148U1311978-08-23023 August 1978 Forwards Pages of IE Inspec Rept 50-184/78-04 & Requests That Noted Portions Be Withheld from Pub Disclosure 1990-09-07 |
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e f, e en \. UNITE] STATE] DEPARTME]f OF COMMERCE National Bureel of Ctandards
/ Washingtoa D.C. 20234
\,%,.
Docket No. 50-184 January 6, 1984 Mr. Harold Bernard Project Manager U. S. Nuclear Regulatory Commission Washington, DC E0555
Dear Mr. Bernard:
This is in response to the question whether an increase in the D.C. power voltage to the final process scram relays will prevent the relays from performing their scram function. There are currently four such relays, any one of which will cut off the power to the shim arm clutches and cause a scram. The relays are mercury wetted contact type with magnetically coupled contacts. With this type of a relay, regardless of any overvoltage which may damage the coil, the magnetically coupled contacts will open thereby initiating a scram. This was confirmed by a test conducted recently on a relay of the same type. The relay was initially subjected to 21/2 times its rated voltage for a period of approximately 9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br /> during which time the relay continued to function properly even though it appeared thoroughly
" baked" with wax melting and flowing. The voltage was then increased to more than three times the rated value for the relay; and after approximately one hour, the coil failed at which time the contacts opened.
Sincerely, f & ).h Robert S. Carter Chief Reactor Radiation Division O
- F 9401130325 840106 DRADOCK05000g8]
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