ML20042C131
| ML20042C131 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 03/18/1982 |
| From: | Clark R Office of Nuclear Reactor Regulation |
| To: | Lundvall A BALTIMORE GAS & ELECTRIC CO. |
| References | |
| NUDOCS 8203300243 | |
| Download: ML20042C131 (6) | |
Text
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.. u;,m "" m Mr. A. E. Lundvall, Jr.
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Baltimore Gas & Electric Company
,gype P. O. Box 1475 RAClark DJaffe Baltinore,itaryland 21203 Gray File Ucar Mr. Lundvall:
On September 14, 1979 the NRC issued a Safety Evaluation Report (SER) concerning fire protection for Calvert Cliffs Units 1 and 2.
By letter dated October 2, 1980 we supplemented our SER to reflect the resolution e
of certain outstanding fire protection items.
In addition, in our letter of October 2, 1980 we provided gilidance for resolution of the remaining fire protection items.
Accordingly, we herein provide our second supplement (Enclosure 1) to our September 14, 1979 SER which addresses fire protection items which we now find acceptable. The status of unresolved fire protection items is shown in Enclosure 2.
It should be noted that items 3.1.20. " Unprotected Door-ways" and 3.2.1, " Fire Hazard Analysis" are unresolved for Calvert Cliffs Units 1 and 2, at this time.
Sincerely.
Origirtal slgrwxi by Robert A. Clark Robert A. Clark, Chief Operating Reactors Branch #3 Division of Licensing
Enclosures:
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hitimore Gas and Electric Company cci James A. Biddison, Jr.
Ms. Mary Harrison, President General Counsel Calvert County Board of County Commissioners Baltimore Gas and Electric Company Prince Frederick, Pa 20768 P. O. Box 1475
.Bal timore, MD 21203 U. S. Environmental Protection Agency Region III Office G::orge F. Trowbridge, Esquire Attn:
Regional Radiation Representative Shaw, Pittman, Potts and Trowbridge Curtis Building (Sixth Floor) 1B00 M Street, N. W.
Sixth and Walnut Streets Washington, D. C.
20036 Philadelphia, PA 19106 Mr. R. C. L. Olson, Principal Engineer Mr. Ralph E. Architzel Nuclear Licensing Analysis Unit Resident Reactor Inspector Baltimore Gas and Electric Company NRC Inspection and Enforcement Room 922 - G&E Building P. O. Bos 437 P. O. Box 1475 Lusby, MD 20557 Baltimore, MD 21203 Mr. Charles' B. Brinkman Mr. Leon B. Russel.1 Manager - Washington Nuclear Operations Plant Superintendent Combustion Engineering, Inc.
Calvert Cliffs Nuclear Power Plant 4853 Cordell Avenue, Suite A-1 Maryland Routes 2 & 4 Bethes.da, MD 20014 Lusby, MD 20657 Mr. J. A. Tieman, Manager Bechtel Power Corporation Nuclear Power Department
"--Attn:
Mr. J. C. Judd Calvert Cliffs Nuclear Power Plant Chief Nuclear Engineer Maryland Routes 2 & 4 15740 Shady Grove Road Lusby, MD 20657 Gaithersburg, MD 20760 Mr. W. J. Lippold, Supervisor Combustion Engineering, Inc.
Nuclear Fuel Management Attn: Mr. P. W. Kruse, Manager Baltimore Gas and Electric Company Engineering Services Calvert C11 ifs Nuclear Power P1 ant P. O. Box 500 P. 0. Box 1475 Windsor, CT 06095 Baltimore, Maryland 21203 Public Document Room Calvert County Library Mr. R. E. Denton, General Supervisor Training & Technical Services Prince Frederick, MD 2067B Calvert Cliffs Nuclear Power Plant Maryland Routes 2 & 4 Director, Department of State Planning 301 West Presto, Street Lusby, MD 20657 Baltimore, MD 21201 Mr. R. M. Dougiass, Manager Quality Assurance Department Fort Smallwood Road Complex Administrator, Power Plant Siting Program P. O. Box 1475 Energy and Coastal Zone Administration Department of Natural Resources
?altimore, MD 21203 Tawes State Office Building Mr. T. L. Syndor, General Supervisor Ooerations Quality Assurance
- t. chert Cliffs Nuclear Power Plant Regional Administra' tor,
Maryland Routes 2 & 4 Nuclear Regulatory Commission, Region I
-Lusby, MD 20657 Office of Executive Director for Operations 631 Park Avenue
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UNITED STATES 04)c(8 g
4 NUCLEAR REGULATORY COMM!SS!ON Encicsure 1
.~ A E WASHINGTON, D. C. 20555 N'%, ( O SAFETY EVALUATION CONCERNING ACCEPTABLE FIRE PROTECTION ITEMS CALVERT CLIFFS UNITS 1 AND 2 DOCKET NOS. 50-317 AND 50-318 3.1.19 Fire Detection in Safety-Related Areas By letter dated November 24, 1980, we required the licensee to install automatic fire detection systems in all areas of the plant that contain safety-related systems or components to meet the requirements of Section III.F of Appendix R to 10 CFR Part 50.
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By letters dated November 6, 1981 and December 10, 1981, the licensee stated that they have installed automatic fire and smoke detection systems in all areas containing safety-related equipment except the main steam isolation valve rooms and the battery rooms.
These areas will be completed during the next sched,uled outage for each unit.
We conclude that the fire detection system will meet the requirements of Section III.F of Appendix R to 10 CF Part 50, and, therefore, is accep-table.
3.1.21 Manual Hose Coverage By letter dated November 24, 1980, we required the licensee to install standpipe hose stations so that at least one effective hose stream will be able to reach any location of the plant that could present an exposure fire hazard to safety-related equipment to meet the requirements of Section III.D of Appendix R to 10 CFR Part 50.
By letter dated November 6, 1981, the licensee stated that they have eliminated this item in light of Appendix R requirements and have pro-vided additional hose stations.
We conclude that manual hose coverage meets the requirements of Section III.D of Appendix R to 10 CFR Part 50 and, therefore, is acceptable.
3.2.2(3) Adequacy'of Detector. Installation
'By letter dated June 20, 1980, the licensee proposed to install an auto-matic total flooding Halon 1301 system to protect cable chases 1C and 2C.
These cable chases are enclosed by 3-hour fire rated barriers and their bottoms are opened to their respective cable spreading rooms.
By letter dated November 24, 1980, we informed the licensee that their proposal to provide a Halon suppression system actuated by the fire detec-tors in cable chase 1C and 2C is not acceptable because of the location of the fire detectors.
By letters dated November 6, 1981 and February 24, 1982, the licensee provided additional information describing the detector spacing, prevailing air movement rate, actuation and design concentration of Halon 1301 system in cable spreading rooms and vertical cable chases.
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Based on our evaluation of this information, we conclude that the fire and smoke detection and suppression system in the cable chases 1C and 2C will meet the requirements of Section III.G of Appendix R to 10 CFR Part 50 and, therefore, is acca;:tatle.
3.2.4 Ventilation Duct Penetrations, By letter dated flovember 24, 1980, we required the licensee to protect all fire barrier openings for ventilation systems with approved fire dampers having a fire rating equivalent to that required of.the barrier.
The method of installation of the fire dampers should conform to the condition of the listing of the fire dampers by the testing laboratory.
By letter dated November 6, 1981, the licensee stated that they verified that the method of fire damper installation conforms to the conditions of the listing of the' fire damper by the testing laboratory. The licensee also verified that fire dampers provide the required fire rating to meet the Fire Hazards Analysis.
We conclude that the fire dampers meet the guidelines of Section D.I.j of Appendix A to BTP ASB 9.5-1 and the requirements of Section III of Appendix R to 10 CFR Part 50 and, therefore, are acceptable.
- 3.2.5 Backflow Protection By letter dated November 24, 1980, we required the licensee to install check valves to prevent the backflow of conibustible liquids between the Diesel Generator Rooms.
By letter dated November 6, 1981, the licensee stated that backflow check valves have been installed.
We conclude that backflow protection in the diesel generator rooms meets the guidelines of Section D.1(i) of Appendix A to BTP ASB 9.5-1, and, therefore, is acceptable.
3.2.6 Electrical Penetration Fire Resistance In our September 14, 1979 Safety Evaluation Report, it war our concern that the_ electrical and piping penetration fire stops may not be adequate to prevent the spread of fire from one fire area to another.
By letter dated May 20, 1980, the licensee described their test procedure and acceptance criteria for the fire test of pepetration seals. We reviewed the fire test procedure and acceptance criteria and concluded that accept-able criteria were used to evaluate the performance of the fire stops.
By letter dated September 2, 1980, the licensee provided a report which described additional tests, and results obtained from these tests, for cable penetrai. ion fire stops.
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3-The licensee tested six penetration. seals.
None of the six seals tested allowed passage of flames during the 3-hour fire exposure period nor did they allow water to pass during the hcse stream test. The temperature levels recorded on the unexposed side were below the cable insulation ignition temperature.
Based on our review, we conclude that the six penetration seals which were tested meet Section III, Paragraph M of Appendix R to 10 CFR Part 50 and, therefore, are acceptable.
3.3.7 Quality Assurance Proaram We have completed our review of the Quality Assurance Fire Protection Program Description. This information was included in the BG&E response to our letter dated December 31, 1979.
Based on.the evaluation of the above information, we conclude this response meets the guidelines contained in the Branch Technical Position ASB 9.5-1, and, therefore, is acceptable.
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FIRE PROTECTION REVIEW STATUS CALVERT CLIFFS UNIT NOS. 1 & 2 DOCKET NOS. 50-317 AND 50-318 ITEM DESCRIPTION
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STATUS 3.1.13 Emergency Communication C
3.1.14 Hydrogen Piping C
3.1.19 Fire Detection in Safety Related Areas C
3.1.21 Manual Hose Coverage C
3.2.2(1),(2)
Adequacy of Detector Installation C
3.2.2(3)
Adequacy of Detector Installation C
3.2.4 Ventilation Duct Penetration C
3.2.5 Drain System Backflow Prote-ons C
3.2.6 Electrical Penetration Firt..esistance C
3.2.7 Piping Penetration Fire Resistance C
3.2.8 Radiological Consequences of Fire C
3.2.9 Effects of Fire on Radiation Monitors C
3.3.1 Halon System Backup Power C
3.3.2 Emergency Lighting C
3.3.3 Fire Door Supervision C
3.3.4 RCP Oil Collection System C
3.3.5 Fire Pump Separation C
3.3.6 Fire Fighting Strategies C
3.3.7 QA Program C
3.1.20 Unprotected Doorways R
3.2.1 Fire Hazards Coverage R
C-Complete R.-
Requirements necessary to meet Appendix R and still under review for "alvert Cliffs
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