ML20129B396
| ML20129B396 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 07/09/1985 |
| From: | Reinaldo Rodriguez SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| To: | Thompson H Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-0737, RTR-NUREG-737, RTR-REGGD-01.097, RTR-REGGD-1.097, RTR-REGGD-1.197 0041E, 41E, GL-82-33, RJR-85-326, NUDOCS 8507150505 | |
| Download: ML20129B396 (7) | |
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em Jij SMUD SACRAMENTO MUNICIPAL UTILITY DISTRICT C 6201 S Street, P.C. Box,15830 Sacramento, CA 95813; (916) 452-3211 i
AN ELECTRIC SYSTEM SERVING THE HEART OF CALIFORNIA
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RJR 85-326 July ~ 9, 1985 I
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' DIRECTOR OF NUCLEAR REACTOR REGULATION 3
-ATTENTION HUGH L THOMPSON JR DIRECTOR DIVISION OF LICENSING U S NUCLEAR REGULATORY COMMISSION WASHINGTON DC 20555 DOCKET 50-312
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RANCHO SECO NUCLEAR CENERATING STATION UNIT NO. 1 SUPPLEMENT 1 TO NUREG-0737, REQUIREMENTS FOR EMERGENCY RESPONSE CAPABILITIES, (G.L. 82-33) COMPLETED ITEMS In our submittals of April 15, July 20,1983 andFeb:[ary2/1984theDistrict proposed an implementation schedule for those post-TNI related items set forth in Supplement 1 to NUREG-0737. EThe Conimission then confirmed the District's
- conunitments in an order dated February 21, 1984. Attachment 1 is an update of
.those Supplement 1 items which were compieted as scheduled at the end of the just completed refueling outage for Cycle 7.
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For item number 36 of the Supplement 1 schedule',' a detailed implementation schedule was submitted on September 14, 1984 for the Reg. Guide 1.97 changes.
Several of the changes were already a part of a modification or integrated into a related modification as part of the District's Living Schedule and were also due for completion by the end of the refueling outage for Cycle 7.
Although the Commission has not yet issued a Safety Evaluation Report (SER)
' for our Reg. Guide 1.97 schedule, an update is being provided (Attachment 2)
' showing those items which the District has completed.
Those items yet to be completed are listed with the basis for their proposed completion dates. The items shown as additions to the Living Schedule will be incorporated in the next Living Schedule update.
For item 5, the District has installed the Interim Data Acqui ition and Display System (IDADS) to meet de data requirement capabilities for the
.' Emergency Response Facilittes (ERF). Attachment 3 provides a status and brief description of the IDADS.
Furthermore, the District is developing additional
-leedifications to further impr6ve and enhance IDADS capabilities.
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, s Hugh L.. Thompson Jr.
_p July 9, 1985
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The attached documents are an updated status of the District's previous commitments for the implementation of Supplement 1 of NUREG-0737. The schedule for implementing proposed modifications is determined using the District's Living Schedule process. Should you have any questions or comments.please feel free to contact Jerry Delezenski at Rancho Seco.
. J.
DDRI ASSISTANT GENERAL MANAGER,
-NUCLEAR Attachments 4
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.6/30/85 ATTACHMENT l-LICENSEE'SCOMMIkMENTSONSUPPLEMENT1TONUREG-0737 LICENSEE'S COMPL.
l TITLE REQUIREMENT SCHED. (OR STATUS) l I
1.
Safety Parameter Display la Submit a safety Complete System (SPDS) analysis and an l
Implementation Plan l
to the NRC.
Ib SPDS fully operational Complete and operators trained.
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Detailed Control Room 2a Submit a program plan Complete Design Review (DCRDR) to the NRC 2b Submit a summary report 12/31/85 to NRC including a proposed schedule for implementation 3.
3a Submit a report to the Complete Application to Emergency' NRC describing how the Response Facilities requirements of Supplement 1 to NUREG-0737 have been or will be met 3b Implenent (installation Detailed or upgrade) schedule requirements submitted 9/14/84 4.
Upgrade Emergency 4a Submit a Procedbres Complete Operating Procedures Generation P%d:ge (EOPs) to the NPC 4b Implemes.1 tus esJraded Complete E0Ps 5.
Emergency Response Sa Technical Support Complete Facilities Center fully functional Sb Operational Support Complete Center fully functional Sc Emergency Operations Complete Facility fully functional 0041E 6/30/85
Reg. Guide 1.97 DETAILED IMPLEMENTATION SCHEDULE The District's Living Schedule currently embodies a majority of the Reg.
Guide 1.97 changes as part of several scheduled modifications. The Reg.
Guide 1.97 items and their associated Living Schedule modifications are listed below in Section'A.
Section' 8 lists those additional Reg. ' Guide 1.97 variables that the District will include in its next. update:to'the Living Schedule.
A.
Previousiv Scheduled Variables
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The District has'already sch'eduled -the following Reg. Guide 1.97 variables intergrated into related modifications as part of the Living
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Schedule process:
Variable Completion Comments l '. Core Exit Temperature (Variable 13) Complete 16 Incore Themocouples.will be upgraded to Category.1,.. _
requirements.
" Inadequate-Core Cooling" 2.
Coolant Inventory (Variable 14)
Complete Qualified Hot Leg Level will.be' installed.
" Inadequate Core Cooling" 3.
Coolant Inventory (Variable 14)
Cycle 8 start-up Procurement Reactor Vessel Level will be Dificulties installed.
" Inadequate Core Cooling" 4.
Steam Generator Level Cycle 9 start-up 4/28/83 (Variable 4) Qualified level submittal indication will be added Design Mod for.
to the steam generators.
EFIC is
" Emergency Feedwater Initiation extensive and Control" 5.
Steam Generator Pressure Cycle 9 start-up 4/28/83 (Variable!5) Qualified Submittal pressure indication will be Design Mod for added to the. steam generators.
EFIC is
" Emergency Feedwater Initation extensive and Control" 6.
Containment Area Radiation Complete
. Radiation Monitor inputs will be added to the SPDS.
. (Variable 27) "SPDS-Upgrade"
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Variable Completion Comments 7.
Primary System Safety Relief Complete Valve. The accoustic monitoring system will r-upgraded to meet the qualification criteria.
(Variable 27)
"SPDS Upgrade" 8.
Emergency Ventilation Damper.
Complete Dampers with qualified Class 1 position switches will be installed.
(Variable 66)
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.B. _ Additions to the livina? chedule' '*
S The District will ~ incorporate the following Reg. Guide 1.97 variables into the next Living_ Schedule update to be listed as " Additional Reg.
Guide 1.97 modifications":,
Scheduled
< Variable Completion Comments 1.
.RCS Hot Leg Temperature Cycle 8 start-up RG 1.97 Review (Variable 1) Qualified Hot Leg not completed Temperature inputs will be added in time for I
to the SPDS.
incorporation into Cycle 7' refueling outage 2.
Pressurizer Level Density Cycle 9 start-up Qualified (Variable 44) Compensation RTD's are a will be added to the qualified long lead pressurizer level, procurement item (See note below)
- 3.. Estimation of Atmospheric July 1986 Pending Stability. The temperature negotiations-comparison circuitry will be with NRC replaced to meet the accuracy Region V &
criteria.
(Variable 83)
Meteorological Staff
- 4.. SPDS Upgrade -( All Category Cycle 9 start-up Schedule is i Variables). Upgrade seismic, resource separation, power supplies and limited due redundancy of the SPDS.
to extensive modification required NOTE: This schedule was originally section VI of SMUD's Regulatory Guide 1.97 Postion Rev. 1 submitted September 14, 1984 and is a status update. No items have been added or deleted nor has there been any schedular changes.
Earlier completion of item B.2 maybe possible where improvement in equipment delivery permits.
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ATTACHMENT 3 IDADS STATUS REPORT The District's Interim Data Acquisition and Display System (IDADS) has passed its acceptance test and has been turned over to Nuclear Operations.
All NCRs have been dispositioned and all ECNs have been closed out. Plant operators and emergency response personnel have been trained in the use of IDADS.
IDADS provides enhanced operator functions and meets the requirements for Emergency Response Facilities (ERF). The major functions provideed by IDADS are: Scan and display of several thousand plant inputs, alarm annuncation and logging, history storage and retrieval, tending,' graphics display, offsite dose radiation monitoring, and reactivity calculations.
Plant inputs enter the systim from the following sources:
Bailey Multiplexer, MODCOMP Multiplexer, Remote Multiplexer ( ANATEC REMUX), and General Atomics Radiation Monitoring System., '
IDADS includes the following equipment:
Computer Room:
(2) MODCOMP 7870 CPUs (one:for data acquisition, one for operator interface), (2) 300 megabyte diskidrives, (2) magnetic tape drives, multiplex interface devices, line printer.
Control Room:
(2) color display terminals, alarm printer, (3) 6-pen trend recorders.
Technical Support Center:
(5) color display '.erminals, high-resolution graphics display terminal, line printer, (J) 6-pen trend recorders.
Assembly Points: color display terminal Emergency Operations Facility: M00 COMP Classis II/75 CPU, (2) 67 megabyte ~
disk drives, (2) magnetic tape drives, alarm printer, line printer, (5) color display terminals, high-resolution graphics display terminal, (3) 6-pen trend recorders.
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