ML20043C370
| ML20043C370 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 06/01/1990 |
| From: | Eddy J CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| GL-83-28, NUDOCS 9006050111 | |
| Download: ML20043C370 (3) | |
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1-Consumers Power rowsmna nlKMGAN's MtOCHtE55 oeneral Offices: 1946 West Parncil Road. Jackson, MI 49201 e (517) 788-0650 June 1, 1990 i
Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 DOCKET 50-155 - LICENSE DPR BIG ROCK POINT PLANT -
CORRECTION TO RAI RESPONSE FOR GENERIC LETTER 83-28, i
ATWS ITEM 1.2 By letter dated February 26, 1990. Consumers Power Company submitted its response for Big Rock Point to an NRC Request for Additional Information (RAI) dated November 20, 1989, concerning Generic Lettei 83-28.
Generic Letter 83-28, " Required Actions Based on Generic Implications of Salem ATWS Events", dated July 8, 1983, requested information concerning Big Rock l
Point's capability to record, recall, and display data and information to permit diagnosing the causes of unscheduled reactor shutdowns. 'The RAI i
requested additional information on how certain parameters were recorded at l
Big Rock Point.
Following a-subsequent review of Big Rock Point's response to the RAI dated February 26, 1990, a number of typographical errors and textual omissions were discovered. The purpose of this letter is to submit those corrections.
An Attachment to this letter contains a listing of the identified
- corrections. This subject has been previously discussed with the Big Rock Point Plant NRC Project Manager.
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J Daniel Eddy Plant Licensing Engineer CC Administrator, Region III, USNRC NRC Resident Inspector - Big Rock Point Attachment 9006050111 900601 PDR ADOCK 05000155 OC0590-0024-NL 4 t[/
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COR_ RECTIONS TO ~ ADDITI NAL INFORMATION < FOR' M'
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- GENERIC LETTER 83-28, AWS ITEM 1.2 -
- June 1,-1990 V
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h CORRECTIONS TO ADDITIONAL INFORMATION FOR GENERIC LETTER 83-28, ATWS ITEM 1.2 Information-originally submitted in Consumers Power Company letter dated February 26. 1990, is-shown enclosed in parentheses.
The containment pressure and' containment level recorders LR-3110 LR-3111,
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PR-53 and PR-54 are scaled for level at 574' to 596' (572' to 598') and for_
ur pressure at -5 to 115 psi (0-to.100 psi). Pg 4 The 12" circular chart for primarv system pressure, PR-IA09(PR-1A09), is scaled at 0-2000 psi (100-2000 psi).
Pg 4, 5 The steam drum level recorder LR-ID12 (LR-lD12) is scaled at -25" to +25" (25" i
to +25").
Pg 5 L
Steam flow is recorded on a 12" circular chart FR-ID06 (FR-ID06), scaled 0-1,000,000 lb/hr.
Pg 5 The 12" circular chart' for feedwater flow, FR-ID07 (FR-lD07), is scaled at 0-1,000,000 lb/hr.
Pg 5 i
The reactor cleanup demineralizer flow is recorded on FR-2101 and is scaled at 0-100% =.0-138 gpm, (0-100 gpm).
Pg 7. #2 Condensate Demineralizer Flow FR-2103, FR-2104-and FR-2105 is scaled at 0-1400 gpm (200-1400 gpm). Pg 7, #9 The 12" paper strip. chart for reactor vessel temperature and steam drum 3
temperature is TR-IA16 (TR-1 A06).
Pg 9, #32 i
l The 12" paper strip chart for reactor recirculation pump temperatures is
-TR-IA66 (TR-1A66). Pg 9 #33 The Containment-dewpoint and air temperature recorder. TR-9623 is scaled at l'
0-120*F (0-300*F and 0-600'F).
Pg 9 #34 j
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The Area Radiation Monitor, RR-8053, is scaled at 0.01 to'1000 mR/hr (1-1000 mR/hr). Pg 10, #43 l-l The liquid poison valves and tank temperatures are recorded on TR-1055 scaled at 0-250'F (0-25'F).
Pg 10, #46 OC0590-0024-NLO4
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