ML17340A696
| ML17340A696 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 01/26/1981 |
| From: | Varga S Office of Nuclear Reactor Regulation |
| To: | Robert E. Uhrig FLORIDA POWER & LIGHT CO. |
| References | |
| NUDOCS 8102120340 | |
| Download: ML17340A696 (11) | |
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0-250/251'RC PDR L PDR TERA SVarga NSIC MGrotenhuis ORB II1 Rdg CParrish DEisen13ut Gray FIle RPurp) e ACRS (1 6)
Greg Harrison Scott Hudson RTedesco GLainas JHeltemes
Dear Dr. Uhrig:
OELD II)E (3)
On October 20, 1980 you proposed alternate modifications for several fire protection features previously accepted by us regarding the follow<<
ing ite(is:
AN 198 Docket Nos. 50-250 and 50-,261 Dr. Robert E. Uhrig, Vice President-Advanced Systems and Technology Florida Power and Light Company.
Post Office Box 529100.
Miami, Florida 33152 3.1.6 Mater Suppression Systems 3.1.12 Barriers
'3.1.15 (4)
Control of Combustables Enclosure one is our eva$ uation of these proposed alternate fire protection modifications.
Based on,'our review, we find your proposed fire protection modifications regarding ')he above items are acceptable as alternate modi-fications to the orginal proposa>s/
This completes our review of the modifications designated's requiring our review in our Safety Evaluation Report dated March 21, 1979.
Attached in enclosure 2 is a list of the remaining unresolved fire pro-tection items.
Sincerely, egigi~1 sig Baby'
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Steven A. Varga, Chief Operating Reactors Branch 81 Division of Licensing
Enclosures:
- l. Evaluation of proposed alterna'te fire pro)ection modifications
- 2. List of remainfhg'unresolved fire protection items.
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Docket IIIos. 50-250 and 50-251 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 January 26, 1981 Dr. Robert E. Uhrig, Vice President Advanced Systems and Technology Florida Power and Light COIIIpany Post Office Box 529100 Miami, Florida 33152
Dear Dr. Uhrig:
On October 20, 1980 you. proposed alternate, modifications for several fire protection features previously accepted by us regarding the follow-ing items:
3.1.6 Water Suppression Systems 3.1.12 Bar riers 3.1.15 (4)
Control of Combusti,bles Enclosure one is our evaluation of these proposed alternate fire protection
.modifications.
Based on our review, we find your proposed fire protection modifications regarding. the above items are acceptable as alternate modi-fications to the orginal proposals.
This completes our review of the modifications designated as requiring our review in our Safety Evaluation Report dated March 21, 1979.
Attached in enclosure 2 is a list of the remaining unresolved fire pro-tection items.-
cerely teven a ga, hsef Operating Reacto Branch
¹1 Division of Licensing
Enclosures:
- 1. Evaluation of proposed alternate fire protection modifications
- 2. List of remaining unresolved fire protection items.
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ENCLOSURE 1
CHEMICAL ENGINEERING BRANCH/FIRE PROTECTION SECTION FIRE PROTECTION REVIEW TURKEY POINT., UNIT NOS.
3 AND 4 DOCKET NOS. 50-250/251 WATER SUPPRESSION
- SYSTEMS, SECTION 3.1.6 In the SER, it was our concern. that a fire in the transformer area could spread: to the switchgear room via the doorways in the southwalls of the switchgear rooms.
1he licensee proposed and we accepted a fixed automatic water spray to protect the door openings facing the transformer area.
By letter dated May 7, 1980, the licensee proposed to block up each door opening in the southwalls with an appropriate 3-hour fire rated construction and.delete the fixed automatic water spray.
In our evaluation, dated July 1,
- 1980, we accepted this proposal.
.By letter dated October 20, 1980, the licensee withdrew their proposal to block-up the doorways.
The licensee has now proposed to provide a roofed labyrinth entrance (with a 4" sloped raised floor) and 3-hour, Class A fire rated door at the existing entrances through the southwalls of both switch-gear rooms.
The licensee's.proposal to protect the doorways with a,labyrinth-door combination having a 3-hour fire rating should pr event a fire, which occurs in the transformer area, from propagating into the swtichgear rooms through the.southwall doorways.
In addition, the 4-inch sloped raised floor should prevent oil.from flowing into the switchgear rooms in the event of a trans-former oi 1 leak.
Therefore, we conclude that the labyrinth-door combination is an acceptable alternative to blocking the doorways.
The licensee indicated that the fire rated doors are long-lead procurement items (approximately 8-months) and, therefore, the existing doors will.be covered with Marinite.board, until the rated door/frame assemblies arrive.
The Marinite board covering the existing doors will increase the level of fire protection provided by these doors and is acceptable on an interim basis.
Based on our review, we conclude that'the licensee',s proposed modifications to protect the doorways with a labyrinth-door combination having a 3-hour fire rating meets Section F(5) of Appendix A to BTP APCSB 9.5-1 and, there-
,fore, are acceptable.
BARRIERS SECTION 3.1.12 It is our concern that heat and smoke from a fire involving the outdoor. fuel oil storage tank could enter the diesel generator rooms thorugh the louvered openings in the diesel generator building and adversely affect the ability of the diesel generators to operate.
By letter dated October '20, 1980, the licensee proposed to provide sprinkler heads on the outside wall of the diesel generator building as a means of reducing the potential 'damage to the diesel generator system from a fire involving the fuel oil,storage tank.
The water spray from the sprinklers will cool the metal louvers and missile shields, and will reduce the 'induction of large particulate matter from smoKe.
The water spray system and the separation distance (45 feet) between the storage'ank and the deisel gener-ator building provide reasonable assurance that heated gases or smoke will not enter the diesel building.
Based on our review, we conclude that the water spray system will be adequate to prevent heat and smoke from a fire involving the outdoor fuel oil storage tank from affecting the ability of the diesel generators to function and, therefore, is acceptable.
CONTROL 'OF COMBUSTIBLES SEC1 ION 3.1.15 4
It is our concern that the Control Point Guardhouse at the entrance to the Auxiliary Building represents an unacceptable exposure fire hazard.
By letter dated October PO, 1980, the licensee proposed to protect the existing guardhouse with sprinklers as an alternative to the construction of a new, noncombustible guardhouse.
The sprinkler. system will consist of three sprinkler heads mounted between the roof of the guardhouse and the bottom of the cable trays above, one sprinkler head above the guardhouse, and two sprinkler heads inside the guard-house.
The sprinkler system will reduce the exposure fire hazard which the existing. guardhouse represents.
Therefore, we conclude that the sprinkler system for the guardhouse is an acceptable alternative for construction of a new guarahouse.
Based on our review, we conclude that the. proposed sprinkler system to protect the Control Point Guardhouse, as alternative to replacing the guardhouse, meets Section C.4(b)( 1) of BTP 'APCSB 9.5-1 and, therefore, is acceptable.
ENCLOSURE 2
UNRESOLVED FIRE PROTECTION ITEMS TURKEY POINT, UNIT NOS. 3/4 DOCKET NOS. 50-25G/251 ITEM 3.1.2/3.2.3 3.2.4 3.2.5
6.0 DESCRIPTION
Fire Water Supply Auxiliary Building Corridor Cable Spreading Room Fire Brigade Size
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Robert E., Uhrig Florida Power and Light Company CC:
Mr. Robert Lowenstein, Esquire Lowenstein, Newman, Reis and Axelrad
.1025 Connecticut
- Avenue, N.W.
Suite 1214 Washington, D. C.
20036
- Environmental and Urban Affairs Library Florida Int em at iona 1 Univers ity Miami, Florida 33199 Mr. Norman A. Coll, Esquire
- Steel, Hector and Davis
.1400 Southeast First National Bank Building..
Miami, Florida 33131 Mr. Henry Ya'cger, Plant Manager
'urkey P oi nt P 1 ant Florida Power and Light Company P. 0.
Box 013100 Miami, Florida 33101 Honorable Dewey Knight County Manager of Metropolitan Dade County Miami, Florida 33130 Bureau of Intergovernmental Relations 660 Apalachee Parkway Tallahassee, Florida 32304 Resident Inspector Turkey Point Nuclear Generating Station
.U. S. Nuclear Regulatory. Commission Post, Office Box 971277 guail Heights Station Miami, Florida 33197 Director, Criteria and Standards Division Office of Radiation Programs (ANR-460)
U. S. Environmental Protection Agency Washington, D..C.
20460 U. S. Environmental Protection Agency Region IV Office ATTN:
E IS COORDINATOR 345 Courtland Street, N.W.
Atlanta, Georgia 30308 Mr. Jack Shreve Office of the Public Counsel Room 4, Holland Building Tallahassee, Florida 32304 Administrator Department of Environmental Regulation Power Plant Siting Section State of Florida 2600.Blair Stone Road Tallahassee,,
Florida 32301 Hr. Mark P.
Oncavage 12200 S.
W. 110th Avenue Miami, Florida 33176 Neil Chonin, Esquire 1400 Ameri-First Building One Southeast Third Avenue Miami, Florida 33131 Henry H. Harnage, Esquire Peninsula Federal Building, 10+h Floor 200 S.
E. First Street Miami, Florida 33131 Ms. Cheryl A. Flaxman 1023 Polk Street Hollywood, Florida 33019 Burt Saunders, Esquire S.eel, Hector and Davis ScetheaM~irst National Bank. Building Miami, Florida 33130
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