ML20235H127

Forwards Rev 4 to FSAR as Part of Relicensing Effort.Rev Re Fire Protection & Communications Sys

ML20235H127
Person / Time
Site:	05000083
Issue date:	09/25/1987
From:	Vernetson W FLORIDA, UNIV. OF, GAINESVILLE, FL
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML20235H130	List: ML20235H127
References
NUDOCS 8709300385
Download: ML20235H127 (2)

Text

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NUCLEAR ENGINEERING SCIENCES DEPARTMENT Nuclear Reactor Facility - 1 University of Florida o.3.Veme4 son,Duector .

NUCLEAR REACTOR BUILDING . , l Gainewsle, Florida 32411 Phone (904)3921429 Telex 66330 September 25, 1987

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U.S. Nuclear Regulatory Commission a Washington, D.C. 20555 C

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ATTN: Document Control Desk w g p' SW >  !

Re: University of Florida Training Reactor to

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Facility License: R-56, Docket No. 50-83 9 rj

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Gentlemen: W

9 The enclosed package contains Revision 4 pages for the UFTR Safe @ Analy- ,

sis Report dated January, 1981 submitted as part of our relicensing effort.

Revision 4 consists of two pages (9-10 and 9-13) in Section 9.5 (Other Auxi-liary Systems) pertaining to Fire Protection and Communications Systems. These changes are not considered to affect the UFTR Safety Analysis as outlined be-low.

On Page 9-10 under Section 9.5.1 Fire Protection System the claimed num-ber of CO2 extinguishers available in the reactor room is two, not five as previously indicated. The number of CO2 extinguishers in the reactor room has always been two (2). The claim of five (5) on Page 9-10 is attributed to a typing or other error as there are normally more than five CO2 extinguishers available when one considers the entire first floor of the reactor building which is where the error probably derived. With two (2) CO2 extinguishers in the reactor room, one in the control room, one immediately outside the control room and several others placed throughout the ground floor, there is no reduc-tion of effective fire suppression capability from CO2 extinguishers.

Second, on Page 9-13 in Section 9.5.1, the description of the new four-zone fire alarm system and its minimum claimed installed equipment is in-cluded; this system replaces the old two-zone system and was installed per recommendations resulting from inspections by American Nuclear Insurers. In-stead of a two-zone system (reactor cell / control room and remainder of build-ing with monitoring station outside the control room), the new four-zone sys-tem (reactor cell / control room, downstairs laboratories, upstairs labora-tories / offices and annex laboratories / offices) better delineates where a fire is located upon alarm at a new monitoring station that is now located just outside the downstairs exit of the building at the Emergency Response Center used for addressing radiological, fire and other building emergencies. In general, the new system is a better system with more zones, more detectors and more pull stations making it a much more effective automatic fire alarm system.

8709300385 070925 PDR ADOCK 05000003 K PDR

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U.S. Nuclear Regulatory Commission September 25, 1987 Page Two Finally, on Page 9-13 in Section 9.5.2 Communications Systems, the first paragraph is changed to reflect administrative titles used elsewhere in the SAR and to include Health Physics Office as one of the entities to be reached by the full service telephone at the reactor console. The second paragraph is

, changed to reflect administrative titles and to delete the claim the Health l Physics Office is connected to the control room by intercom. The Health Phy-sies Office is in the Nuclear Sciences Center (attached adjacent building) and can be reached by telephone with rapid response as necessary. Qualified health physics technicians (staff operations personnel) are available through the in-tercom system connection in the operations staff room. The claim that the in-tercom connects to the Health Physics Office at this location dates to over ten years ago and was inadvertently included in the 1981 revised SAR. This change is not considered to affect Health Physics capabilities or response and does not impact safety analysis for the UPTR.

All text changes to the current revised SAR are clearly indicated by ver-tical lines in the margin. All of these changes for Revision 4 have been fully reviewed by UPTR Management and the Reactor Safety Review Subcommittee and are not considered to relax the requirements for assuring protection of the health and safety of the public nor are they considered to impact the UFTR Safety Analysis. In addition the changes are not considered to involve any unreviewed safety question per 10 CFR 50.59.

The entire enclosure consists of one (1) signed original letter of trans-mittal with enclosure plus ten (10) copies of the entire package.

If further information is required, please let us know.

Sincerely, l Ot/ w William G. Vernetson Associate Engineer and Director of Nuclear Facilities  !

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Enclosures cc: U.S. NRC Region II ,

P.M. Whaley ]

Reactor Safety Review Subcommittee J, a sem $ - .

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