ML19319D887

Discusses Facility Fire Protection Capability & Requests Revisions to Tech Specs Implemented by Amend to Ol.Sample Tech Specs Re Fire Suppression Sys Encl

ML19319D887
Person / Time
Site:	Browns Ferry, Rancho Seco
Issue date:	11/25/1977
From:	Goller K Office of Nuclear Reactor Regulation
To:	Mattimoe J SACRAMENTO MUNICIPAL UTILITY DISTRICT
Shared Package
ML19319D888	List: ML19319D887 ML19319D891 ML19319D895
References
NUDOCS 8003270545
Download: ML19319D887 (5)

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November 25, 1977 DISTRIBUTION:

Docket File V 3 6 1NRC PDR Dross

', # C PDR Gray File Docket No.:

50-312 ORB #4 Rdg 4 Extra Cys VStello TBAbernathy

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AKRGoller/TJCarter

) RIngram JRBuchanan 6%ssinty L C[$hffl F

Sacranento l'unicipal Utility District Attorney, OEL[L

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Mr. J. J. Matticoe

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' OI&E (5) _ LU,$u ddL and Chief Engineer '

BJones(4)d&.;gwk'a Assistant ' General Manager i/

TWambach 4

c 6201'S Street

..c" BScharf (15)dhh P. O. Box.15830 JMcGough Sacranento, California' 45813 ~

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. BHarless v,

DEisenhut

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OPA Clare Miles

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. As y6u know,' the Nuclear Redslatbry. Cotnission. (NRC) has been w, orkin p.

,/c' lose.lylkith"your staf f sirke; theiEfown's Ferry fire to~ enhance"the @g# N;/,.iM

.Dh6e been mads i.cYpibil[l'tyfofdr6tlya'ijity6 ALnusber of LimproVoinent'sj N

'jf.freprot$tionf

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n:the, areas'of, reducing potential for::exposuref fi ts c..ch o f

. ' by/ control. ef,co%istilble' faterialsIcontrol of ' sources of flame, ind - 7."

improvement'ofl fire. protection person 6eli -These faro generally reflected

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m i'n your Auoust '1,;.1977, ' response to'ou~r' June 16, 1977, letter which re-quested: preparation oC iinteric Technical. Specifications on fire pro-tectiori~fo'r Rancho Seco Nuclear Gen'eratina Station.' Following

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our review, which included discussion yf th your-staf f cencerning the interim _ Technical Specifications; we have~ octeruined that revisions to your submittalfare needed and'that the. enclosed Technical Specifications

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should be irplemented by an amends:ent to your facility ~ license.

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.nanyL instances these Technical Specifications are'similar to things you are faiready doing at your facilityLbut which,have not been included'in

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your Technical Spec ~f fications. - ile believef thit it is -important' that t

_ _ Kfire protectio.n requirements; generally be consistent for all facilities',

.s jand we are taking these steps to achieve consistent,interin action with ~

respect te fire protecti.on for all plants.

Please let us know in writing w

within 20 days'as 1to%hether there are any soecific reouirsrents to 'which you object.

If.you.. object to any specific provision of the enclosed specifications,- cite the portion that you fina objectionable and specify '-

your reasons and the technical bases therefor.

If you have no objection to these specifications, it is nonetheless imporcant to let es know within s

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Sacramento flunicipal Uti11ty District 2-20 days.

We plan to initiate steps to issue the enclosed chan<;es to the Technical Specifications for your facility in approxinately 20 days following the date of this letter.

If we do not hear from you, we will act to issue the specifications on the basis that assumes your agreenent.

Sincerely, e

6trbst.R::3 mg

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Karl R. Goller, Assistant Director

. ' for Operating Reactors

-Division of Operating Reactors E closures:

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Technical Specifications 2.

Safety Evaluation

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_ 11/23/77 11/.73/77 11/Il/77 11/&3'77 11/23/77

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NRC PORM 313 k9-76) NRCE 0240._

W un e eovansuswr p3tanNe.NICES ID76-838 833

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' Sacramento Municipal Utility.

District cc w/ enclosure (s):

David S. Kaplan, Secretary and U. S. Environmental Protection Agency General Counsel Region IX Office ATTN:

EIS COORDINATOR 6201 S Street P. O. Box 15830 100 California Street Sacramento, California 95813 San Francisco, California 94111 Mr. Patrick McLarkey, Chairman Sacramento County Board of Supervisors Sacramento County Courthouse California Department of Health Sacramento, California 95814 ATTN:

Chief,' Environmental Radiation Control Unit Energy Resources Conservation and Radiological Health Section '

Development Commission 714 P Street, Room 498 ATTN:

Librarian Sacramento, California 94814 1111 Howe Avenue Sacramento, California 95825 Business and Municipal Department Sacramento City-County Library 828 I Street Sacramento, California 95814 i

Chief. Energy Systems Analyses Branch (AW-459)

Office of Radiation Programs U. S. Environmental Protection Agency Room 645, East Tcwer 401 M Street, S.W.

Washington, D.C.

20460 e

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w Staff position Minimum Fire Gricade Shift Size INTRODUCTION Nuclear power plants depend on the response of an onsite fire brigade for d:fense against the effects of fire on plant safe shutdcun capabilities.

In scme areas, actions by the fire brigade are the only means of fire suppression.

In other areas, that are protected oy correctly designed automatic detection and suppression systems, manual fire fighting efforts are used to extinguish:

(1) fires too small to actuate the automatic system; (2) well developed fires if the autcratic system fails to function; and (3) fires that are not completely controlled by the automatic system.

Thus, an adequate fire brigade is essential to fulfill the defense in depth requirements which protect safe shutdown systems frca the effects of fires and their related ccabustion by-products.

DISCUSSION, There are a numt

'ctors that should be considered in establishing the minimum fir

.gce shif t size.

They include:

1) plant gecmetry and size;

2) quhntity and quality of detection and suppression systems;

3) fire fighting strateg1cs f or postulated fires;

4) fire brigade training;

5) fire brigade equipment; and c) fire brigade supplements by plant personnel and local fire department ( s).

In all plants, the majority of postulated fires are in enclosed window-less structures.

In such c.reas, the working environment of the brigade created by the heat and smcke buildup within the enclosure, will require the use of self-contained breathing apparatus, sacke ventilation equipment, and a personnel replacement capability.

Certain functions must be performed for all fires, i.e., comand brigade actions, infom plant m'anagement, fire suppression, ventilation control, provide extra equipment, and account for possible injuries.

Until a site specific review can be completed, an interim minimum fire brigade size of five persons has been established. This brigade size should provide a minimum working number of personnel to deal with those postulated fires in a typical presently operating commercial nuclear power station.

. If the brigade is conposed of a smaller number of personnel, the fire attack may be stopped whenever new equipment is needed or a person is injured or fatigued. We note that in the career fire service, the minimum engine company manning considered to be effective for an initial attack on a fire is also five, including one officer and four team members.

It is assumed for the purposes of this position that brigade training and equipment is adequate and that a backup capability of trained individuals exist whether through plant personnel call back or from the local fire department.

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POSITI0il 1.

The minimum fire brigade shift size should be justified by an analysis of the plant scecific factors stated above for the plant, after modifications are ccmplete.

2.

In the interim, the minimum fire brigade shift size shall be five persons.

These persons shall be fully qualified to perform their assigned responsibility, and shall include:

One Su9ervisor - This individual must have fire tactics tri'-ing.

He wiii assume all command responsibilities for fightirg the fire.

During' plant emergencies, the brigade supervisor ~shoul 9. not have other resconsibilities that would detract from his full attention being devoted to the fire.

This ss;ervisor should not be actively engaged in the fighting of the fire.

His total function should be to survey the fire area, ccmmand the brigade, and kees the upper levels of plant management informed.

Two Hose Men - A 1.5 inch fire hose being handled wit 11n a window-less enclosure would recuire two trained individuals.

The two team members are required to physically handle the active hose line and to protect each other while in the adverse envircnment of the fi re.

Two Additional Team Memoers - One of these individua's would be requirca to supply filleo air cylinders to the fire 'ighting members of the brigade and the second to establish.t noke ventilation and aid in filling the air cylinder.

These two individuals would also act as the first backup to the engaged team.

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