ML20077S068
| ML20077S068 | |
| Person / Time | |
|---|---|
| Site: | FitzPatrick  |
| Issue date: | 08/20/1991 |
| From: | Capra R Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20077S070 | List: |
| References | |
| NUDOCS 9108260334 | |
| Download: ML20077S068 (7) | |
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7590 01 UNITED STATES NUCLEAR REGULATORY COMMISSION POWERAUTHORITYOFTHE,ST, ATE,0F,NE}l, YORK DOCKET NO. 50-333 ENVIRONMENTAL AS">ESSMENT Att0 FINDING OF NO SittilFICAtlT IMPACT The U. S. Nuclear Regulatory Commission (the Commission) is considering issuance of an exemption from the requirements 10 CFR Part 50, Appendix R,
" Fire Protection Program For Nuclear Power Facilities Operating Prior To January 1, 1979," Section 111.G.3, to the Power Authority of the-State of New York (PASNY/ licensee) for the James A. FitzPatrick fluclear Power Plant, located at the licensee's site in Oswego County, tiew York.
Envi ronmental,As,s,essment IdM.tjfjga,tjp_n_ of Proposed Action:
Section 111.G of_10 CFR Part 50, Appendix R, requires that where cables or equipment of redundant trains of systems necessary to achieve and maintain. hot shutdown-conditions are located within the same fire area outside of primary _
containment, one of the following means of ensuring that one of the redundant trains is. free of fire damage shall be provided:
a.
_ Separation of cables and equipment and associated non-safety circuits of redundant trains by a fire barrier having a 3-hour rating. Structural steel forming a part of or supporting such fire barr.iers~shall be protected to provide fire resistance equivalent to
-that required of-the barrier; b.c Separation of cables and equipment and associated non-safety circuits of redundant trains by a horizontal-distance of more than 20 -feet with no intervening combustible or fire hazards, in 9108260334 910820 ADOCK050g33 DR b-eve +--n--
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addition, fire detectors and an automatic fire suppression system shall be installed in the fire area; or c.
Enclosure of cable and equipment and associated non-safety circuits of one redundant train in a fire barrier having a 1-hour rating.
In addition, fire detectors and an automatic fire suppression system shall be installed-in the fire area.
If these conditions are not satisfied, Section !!!.G.3 of 10 CFR Part 50,
. Appendix R,- requires alternative shutdown capability independent of the fire area of concern.
Furthermore, this section requires that fire detection and a fixed fire-suppression system be provided in areas, rooms, or zones for which alternate shutdown capability is provided.
The licensee recently determined that redundant cables for safe shutdown systems are located in the Battery Room Corridor Fire Zone BR-5. Alternative shutdown capability is required for this area as a result of possible loss of Divisions "A" and "B" cabling-due to a fire'in the area. Modifications previously. implemented in Fire Zone BR-4 to ensure alternative shutdown capability for a fire in the Main Control Room also ensure. alternative shutdown capability for a fire in Fire Zone BR-5.
This alternative shutdown ' capability
-is provided by the provision of Division "B" de power to the remote shutdown panelsviadistributionpanel71DC-B4(FireZoneEG-6). Automatic detection is provided for the Battery Room Corridor; however, automatic suppression system capability is not. As a result, the Battery Room Corridor'is not in compliance with Section III.G.3 of 10 CFR Part 50 Appendix R.
3 T,h,e,p'eed, for the proposed Action:
The proposed exemption is needed to permit the licensee to operate the plant without being in violation of the Commission's requirements.
E n v i ro nme n t al J rrp,a c,t,,0 f,,t h,e,g s eLA,c,t,i o n :
The proposed exemption is from the requirement of 10 CFR Part 50, Appendix R, Section 111.C.3, to have an automatic fire suppression system for areas containing redundant trains of safe shutdown cables, specifically the Battery Room Corridor (Fire Zone BR-5).
The Battery Room Corridor has a combustible loading consisting of cable insulation, with an equivalent fire severity of under one hour. Automatic detection consisting of ceiling mounted ionization detectors is provided in this corridor. Potential fires in the Battery Room Corridor would involve primarily cable insulation located in trays near ceiling level or in vertical risers along the south wall. Fires of this nature would be detected in the incipient stage, with alarm notification in the continuously-manned Main Control Room.
Alarm notification would result in prompt dispatch of the fire brigade for rapid initiation of manual fire fighting activities. Portable extinguishers and manual hose stations are provided in the Battery Room Corridor and adjacent areas to assist in this fire fighting effort. Reasonable assurance is provided that manual fire fighting activities would result in prompt extinguishment of postulated fires. Furthermore, in the unlikely event of fire in this fire zone, and damage to the redundant safe shutdown cables, alternate shutdown capability is provided, i
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Based on the considerations above, the staff concludes that granting the proposed exemption will not increase the probability of an accident and will not result in any post-accident radiological releases significantly in excess of those previously determined for James A. FitzPatrick Nuclear Power Plant.
The proposed exemption would not otherwise affect radiological plant effluents, nor result in any significant occupational exposure.
In addition, the exemption does not affect non-radiological plant effluents and has no other environmental impact.
Therefore, the Commission concludes that there are no significant radiological or non-radiological environmental impacts associated with the proposed exemption.
Alternative to the Proposed Action:
Since the Connission has concluded that there are no measurable environmental impacts associated with the proposed exemption, any alternatives with equal or greater environmental impact need not be evaluated.
The principal alternative to the exemption would be to rea91re rigid compliance with the requirements of 10 CFR Part 50, Appendix R Section III.G.3.
Such action would not enhance the protection of the environment.
Furthermore, the irsta11ation of an
-automatic fire suppression system would result in additional costs to the licensee without adding any benefits already available by the independent shutdown capability.
Alternative Use of Resources:
l This action does not involve the use of any resources not previously l
l considered in the " Final Environmental Statement for the James A. FitzPatrick Nuclear Power Plant," dated March 1973.
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l AcenciesandPersonsConsultd:
The NRC staff reviewed the licensee's submittal that supports the proposed l
exemption discussed above.
The NRC staff did not consult other agencies or persons.
FINDING OF NO SIGNIFICANT IMPACT The Commission has determined not to prepare an environmental impact statement for the proposed exemption.
Based upon the foregoing environmental assessment, the staff concludes that the proposed action will not have a significant effect on the quality of the human environment.
For further details with respect to this action, s.e the licensee's letters dated July 31, 1991, and August 6, 1991. These letters are available for public inspection at the Commission's Public Document Room, 2120 L Street, i
NW., Washington, DC and at the Reference and Documents Department, Penfield Library, State University of New York, Oswego, New York.
Dated at Rockville, Maryland, this 20th day of August 1991.
FOR THE NUCLEAR REGULATORY COMMISSION
%LJ O~ Cy Robert A. Capra, Director Project Directorate I-1 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation l
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i Mr. Ralph E. Deedle 2
August 20, 1991 The notice has been forwarded to the Office of the rederal Register for
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publication.
Sincerely, CalGit4L $1G1400 b6 Brian C. McCabe, Project Manager Project Directorate 1 1 Division of Reactor Projects. 1/11 Office of fluclear Reactor Regulation
Enclosure:
Environmental Assessment cc w/ enclosure:
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