ML20080G865

Forwards Vols 1 & 2 to Supplemental Info:Alternative Shutdown Capability Assessment & Proposed Mods,10CFR50 App R Iii.G & Structural Steel Survivability Evaluation. Fire Protection Mod Progress Rept & Exemption Requests Encl

ML20080G865
Person / Time
Site:	Peach Bottom
Issue date:	09/16/1983
From:	Boyer V PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Eisenhut D Office of Nuclear Reactor Regulation
Shared Package
ML20080G869	List: ML20080G865 ML20080G875 ML20080G885
References
NUDOCS 8309200375
Download: ML20080G865 (18)

Text

5- .. ,

PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET P.Cl. BOX 6699 PHILADELPHI A. PA.19101

v. s. Bo y ca (21st 84i-4soo SR. VICE PRESIDENT NUCLE AR POWE R September 16, 1983 Docket Nos. 50-277 50-278 Mr. Darrell G. Eisenhut Divit2 ion of Licensing U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Subject:

Peach Bottom Atomic Power Station Alternative Shutdown Program, Exemption Requests, and Fire Protection Modifications Progress Report

Reference:

1) Letter from J. W. Gallagher to D. G. Eisenhut, dated February 25, 1983

2) Letter from J. S. Kemper to D. G. Eisenhut, dated March 24, 1983

3) Letter from V. S. Boyer to D. G. Eisenhut, dated May 27, 1983

4) Letter from V. S. Boyer to D. G. Eisenhut, dated July 22, 1983

Dear Mr. Eisenhut:

Philadelphia Electric Company, in Reference 1, proposed to submit Peach Bottom's Fire Protection Modification Progress Report every four months, starting in May, 1983. We requested in a second letter (Reference 2), pursuant to 10CFR50.12, an extension in the date for submittal of design descriptions of an Alternative Shutdown System and for filing exemption requests f or Suppression Systems and Structural Steel Protection to September 16, 1983. Philadelphia Electric Company, in Reference 3, pursuant to 10CFR50.12, requested an exemption for penetration seal material. Further, we provided in Reference 4 a description of areas requiring emergency lighting as a result of the al.ternative shutdown design. )k7 ChY p9d'#psT. lj]b

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t Mr. Darrell G . Eisenhut - Page 2 This letter will provide: (1) the Fire Protection Modification Progress Report (see Appendix 1); (2).the design description of our proposed Alternative Shutdown System (see enclosed report), which includes exemption requests for Suppressi on ' Systems ; ( 3) structural' steel calculation methodology

and calculation results (see Appendix 2); (4) elaboration on the penetration seal program, to include HVAC damper modifications;

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and ( 5) . a description of proposed emergency lighting.

I. Modification Progress Report Included in the Modification Progress Report are several additional modifications required as part of

our review program to meet Appendix "R" criteria:

i:

A. Saf e Shutdown Separation - III .G.2 - Continued refinement of our saf e shutdown analysis has identified additional cable which must be rerouted or encapsulated.

B. Automatic Fire Detection - III .F - We have completed our re-analysis.of all plant areas to 4

verify that automatic fire detection is provided in those areas which contain. saf ety-related raceway. Eight zones have been ' identified 'which' contain safety-related' cable and conduit which are not provided with detection. Safe shutdown

. can be achieved following a fire in any of these eight fire zones. Corrective actions planned for these eight zones are as f ollows:

(1) The cables.in the following three zones will

be encapsulated to provide a 3-hour fire barrier. No detection will be provided.

' Fire Zone 6* Stai rwell #24 Fire Zone 5-7 Stairwell #18 i

Fire Zone 12-15 Stairwell #23

!

• The 6 represents the old fire zone number i'

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for Stairway #24. The 4 represents the newly defined fire area that includes Stairway #24.

Consequently, the new fire zone number is 4-6.

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Page 3 Mr..Darre'll G. Eisenhut

, (2) . Area smoke detection will be added in the following three zones:-

Fire Zone 6-22 Drywell Access Hatch Fire Zone 13-28 Drywell Access Hatch Fire Zone 11-65c Future spent resin area (3) Safety-related cable in the following zone will be rerouted through a zone which is provided with automatic fire detection.

Fire Zone 11-72B Fuel Pool Holding Pump Compartment-(4) Our re-evaluation identified one fire zone for which an exemption request appears to be j ustifi ed . The zone evaluation included a l

review of past survey data indicating expected transient combustibles; accessibility, both from a radiation and pedestrian traf fic standpoint; qualification

~ of barriers surrounding the area; and the E

combustible loading in adjacent fire zones.

Based on the results of our re-evaluation, t

we are requesting, pursuant to Section 50.12 of the Commission's Regulations , an exemption to the requirement of 10CFR50, Appendix R, Section III.F in Fire Zone 51-136, Emergency Cooling Tower Stairwell, for the following reasons:.

Safety-related cables in conduit are located in this stairwell. No other fixed combustibles are located in this fire zone.

Access to the stairwell is provided by a single outside staircase. Entrance to the staircase is controlled by a locked fence

. gate. Security personnel control the' keys to this-gate. The stairwell entrance is located up .a single flight of stairs .and is a controlled security access door (card reader).

The Emergency Cooling Tower is remote from the Power Block and pedestrian traffic is mi nimal . The area is not used for storage

< of materials. Due to the remoteness from the powerblock and the restrictions on entrance to the area, current administrative

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j Mr. Darrell'G. Eisenhut Page 4 i

- controls of combustibles will preclude the presence of a fire hazard and automatic fire detection is not' warranted.

i -C. - HVAC Damper Survey 4

As part of_our safe shutdown / alternative shutdown wall survey, many walls were identified which require upgrading of duct penetrations. An

' additional program is now in progress to provide the necessary corrective action for HVAC ducts

. penetrating saf e shutdown fire barriers. The

. results of the survey are as follows

4

1) 100 existing duct penetrations through safe shutdown walls have no qualified dampers and will be upgraded with qualified dampers .

2) 23 dampers exist but qualification is being verified.

3) 38 ducts through safe shutdown walls have 3-hour qualified dampers.

4) 12 ducts are yet to be field surveyed.

! We expect this ef f ort , as well as corrective

' actions , to be completed by June 1, 1984. If any

[. dampers are qualified for less than 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br />, but meet. fire resistive ~ requirements commensurate with the hazard in the area, exemption requests i will be made in a letter to be submitted' by December 2, 1983.

l I

l D. Encapsulation Program f - As part of our encapsulation program, there are

' 17 HPCI cables that require encapsulation on Unit No. 3. These cables were placed on " hold" i, pending finalization of the conceptual design for i alternative shutdown. Since the HPCI system is

(; now considered the primary source of reactor inventory control for alternative shutdown, these l- cables have been released ' f rom a " hold" _

condition. These cables are now included in our encapsulation / reroute schedule with a deadline of the next Unit No._ 3 refueling outage. These 4

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Mr. Darrell G. Eisenhut Page 5 modifications will also be included in the next e

Modification Progress Report.

6 II. Alternative Shutdown Design Description - III.G.3

, The enclosed report on Alternative Shutdown includes detailed descriptions of the methods for bypassing the three critical areas of the plant- housing redundant saf e ' shutdown components; the main control room, cable spreading area , and remote shutdown panel area.

i- Included in this report are tables listing required modifications . as well as necessary operator actions .

Final operating procedures will not be written until practice exercises are performed by the designated 4

operators during simulated fire scenarios.

1 Determination of the timing required before initiating these actions, as well as that timing needed to

,- actually perform- these actions , is still needed.

Particular attention should be given to the exemption requests and their bases identified in Section 7 of the report . Philadelphia Electric Company, pursuant

to~10CFR50.12, requests an exemption from the fire suppression syst'em provisions of Appendix R, Sections III .G . 2 and III .G . 3, for eight areas (three per unit and two common areas) as described in the report.

4 Additionally, an exemption involving the 3-hour barrier provision of III.G.2 is requested in Section 7 of the report for one area in each unit. As modifications identified in this submittal are approved by the NRC, the work items will be specifically identified _in our Modification Progress Report.

III. Structural Steel - Calculation Methodology and Results

- III.G.2 We have reviewed safe shutdown areas which contain i exposed structural steel- members and developed a calculation. methodology for analyzing the need for protective measures. In Appendix 2, we have included copies of our calculation methodology, assumptions and conservatisms, calculation results for each area revi ewed , and propos ed actions .

i 4

i 1

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Mr. Darrell G. Eisenhut Page 6 IV. (Penetration Seal Upgrade Program - III.M The penetration seal upgrade program continues. As of September 9, 1983, approximately 1900 penetration seals have been upgraded. The survey of safe shutdown barriere (378) to identify. penetrations requiring sealing is approximately 50% complete and 3300 penetrations requiring upgrading have been identified.

- Due to the Philadelphia Local Asbestos Workers strike, the available work force has fluctuated considerably.

Since August 1, 1983, the necessary work effort required and schedule restrictions warranted a force of at least 120 asbestos workers on double shif t.

However, 70-80 workers have ' been the maximum number we have been able to obtain f rom surrounding union halls.

The available work force is working two shifts, and as asbestos workers become available, every ef f ort is -

being made to immediately put them to work at Peach Bottom.

In' order to reduce the estimated number of penetration seals requiring upgrade, a vertical wall fire test was run on May 23, 1983. Two more tests are scheduled for the end of October (delayed due to the required curing time for concrete), one a vertical wall test with additional plant seal details, and one a -floor test.

Although the first vertical wall test indicated favorable results with respect to the Appendix R,

. III.M criteria, we agreed with'the NRC staf f reviewer to run a floor test of these same details. 'For the floor test, exact duplication of the detail and its orientation will be tested, thereby providing correlation data to the completed wall test..

We will include in our letter of December 2, 1983, a report on the results of these fire tests conducted at

> Gold Bond Building Products , Buffalo, New York, in cooperation with Factory Mutual Research. A final evaluation can then be made of the polyurethane material included in any seal details qualified by these tests and retained in plant seal configurations.

We are hopef ul' that successful completion of these tests will qualify additional- plant seals, either totally or with less labor intcnsive' modifications.

Every reasonable ef f ort is being made to meet the March 1,1984, seal installation deadline; 'however, i

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Mr. Darrell G. Eisenhut Page 7 the aforementioned problems with the labor force have seriously curtailed production. Should the work force remain at existing levels, we estimate by March 1, 1984, completion of approximately 5200 seals; 1600 .

seals shy of our present goal. If this projection remains accurate, we will shif t our emphasis toward completion of all Unit 3 seal upgrade requirements

. since we expect Unit -

2 to be in a ref ueling outage in the Spring of 1984.

. V. Emer gency Lighting - III .J As a result of the alternative shutdown analysis, we j have identified 6 new areas / locations per unit that will require emergency lighting. We expect that in support of safe and - alternative shutdown procedures, emergency lighting will be added in the following areas:

! a) HPCI alternative control station - Reactor Bldgs.135 '

b) HPCI turbine areas j c) Torus' areas ,

, d) RHR valve motor control centers e) Isolation valve rooms f)- 2B RHR pump room (Unit 2 only)

g) 3D RHR pump room (Unit 3 only) l h) -Access and egress routes thereto l

As the details of the Alternative Shutdown System i became finalized, the exact locations of the emergency lighting systems will be established.

In Reference 4, routes of access and egress between

! the _ power. block and the High Pressure Service Water

! Pump Structure and Diesel Generator Structure were identifi ed . There is presently no need to provide emergency lighting in the diesel generator rooms or -

access to, since the alternative shutdown diesel control panels will be located within the power block which is provided with emergency lighting.

For the High Presure Service Water Pump Structure access and egress, we plan to' store portable lanterns with at least 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> battery supply in the switchgear rooms. Since the Appendix "R" rule is not specific i

about fixed versus ' portable lighting, it is our 1

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Mr. Darrell G . Eisenhut Page 8 position that we are in compliance with this requirement and are not requesting an exemption for this case.

We are confident that this letter, along with its enclosures , documents continued actions responsive to the increased fire protection requirements necessary at Peach Bottom,

- and indicates Philadelphia Electric Company's commitment to continued saf e plant operation.

I should you have any questions or require additional inf ormation, please do not hesitate to contact us.

Very truly yours, Attachments cc: A. R. Blough, Site Inspector Peach Bottom d

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s Appendix I Page 1 of 10 September 16, 1983 PBAPS Fire Protection Mod Progress Report Revised to Account for Proposed Alternative Shutdown System (This Report Supersedes the May 27, 1983, Report)

Kcy: 2-EOO means'" Unit 2 - End of Next Refueling' Outage" N/A - Not Applicable Expected Mod Description Status Completion Dates Mod. No.

R5 route ZD201024K and Design 2-EOO 1029B &

ZD201027B then complete for 1029A encapsulate in Fire reroutes.

Zone 4C. Outage work.

Encapsulate 4 raceways- Encapsulation N/A 1029A ZB2MV010, ZB2L367,8 of these raceways ZB2M603 in Fire Zone 4B. no longer required.

(Safe shutdown To Be Determined achieved using ADS /CS.

Necessary raceways not yet defined.)

Encapsulate .2 raceways- Encapsulati on N/A 1029A ZA2P473, ZA2M350

~

of these raceways in Fire-Zone 4C. no longer-required.

(Safe shutdown To Be Determined achieved using.

ADS /CS.

Necessary raceways not yet defined.)

Rcroute ZD201024K in Design complete. 2-EOO 1029B Fire Zones 5E and SG. - Outage work.

On3 tray and 3 conduits Encapsulation N/A 1029A nacd to be encapsulated of these raceways in Fire Zone 12B. no longer required.

(Safe shutdown To Be Determined

1. achieved using ADS /CS.

Necessary raceways not yet defined.)

e

6- :s ~

Appendix-I Page 2 of 10 September 16, 1983

. Expected Mod ~ Description Status Completion Dates Mod. No.

Fix ZA3Ol827A (reroute. Reroute- Completed 1029B

~in Fire Zone 12C). complete'.

Encapsulation not required.

Encapsulate 1/2 SSA Encapsulation N/A 1029A racewaysLin Fire of these raceways

. Zone : 12C . - no longer required .

(Safe shutdown To Be Determined

-achieved using ADS /CS.

Necessary raceways

-not yet defined.)

Encapsulate ZB30179A,- Encapsulation N/A 1029A B in Fire Zones 13D of' cable not and 13G. necessary due-

.tx) alternative shutdown system and exemption request for torus area.

Encapsulate-cables Encapsulati on N/A lO29A

.. ZB 201800C , D, ZB202785A, of these cables

'1788A,1B, 1789A, 1814 A no longer in' Fire Zones 60 and 63. - required.

(Safe _ shutdown To Be Determined achieved using

. ADS /CS.

! .Necessary raceways

, _ not yet defined.)

Encapsulate cables Encapsulation N/A lO29A i ZA301018B, C in Fire of these cables Zone 62.- no longer

requi red .

(Safe shutdown To Be Determined achieved using ADS /CS.

Necessary raceways not yet defined.)

?

r l

c- o- 1 Appendix I Page 3 of 10 September 16, 1983 Expected

~ Mod Description - Status Completion Dates Mod . No .

Encapsulate cables- Encapsulation- N/A 1029A

~ ZB3Ol799T, ZB301800C, of these cables D and ZA3Ol827A in Fire

~

no longer

. Zones 65A,. B,' C and 72D.- required.

(Safe shutdown To Be Determined achieved using ADS /CS.

Necessary raceways not yet defined.)

Encapsulate three conduits Encapsulation N/A 1029A in Fire Zone 75. (ZA3M603, of= cables ZB3L367,8) no longer required.

(Safe shutdown achieved-using ADS /CS.

Necessary raceways not yet defined. )

Encapsulate several 4kV Field surveys 12/31/83 1029A

. power feeds in Fire complete.

Zones 78A, B, E and Design in Fire zone.ll4. progress.

iEncapsulate conduits Field surveys 12/31/83 1029A

ZA2B1249'and.ZC2B1247 . complete.

in Fire Zone .78A. Design in-

, progress. Fire zone redefined.

' Encapsulate conduits. Field surveys 12/31/83 1029A 4 ZC3B137,.ZC3B150 and complete.

Junction Box J17 in Design in.

Fire Zone 78A. progress. Fire zone redefined.

I

!  : Encapsulate several 4kV . No longer. N/A 1029A conduits in. Fire Zone 82. necessary 'due to safe shutdown strategy' change.

Encapsulate 1 conduit- Field survey 12/31/83 lO29A ZA3D00111n Fire Zone 117. complete.

Design'in t progress.

l

r...

s Appandix I Page 4 of 10 September-16, 1983 Expected Mod Description Status Completion Dates Mod. No.

. Encapsulate ZB3D1802A, Field survey 12/31/83 1029A B and ZD3DD01E in complete.

~ Fire Zone 118. Design in progress.

Encapsulate ZB3DD01E Number of 12/31/83 1029A

, in Fire Zone 119. conduits reduced due to new Saf e shutdown strategy change.

Field survey complete.

Design in progress.

Ralocate battery chargers Outage work Outage work 1029C 3BD03 & 3DD03, then complete. completed. lO29A cncapsulate ZB3BD01E . Field survey 12/31/83

'in Fire Zone 120. in progress (non-outage) for encapsulation .

Encapsulate ZB3 Bill 4A Encapsulation - N/A 1029A cnd ZD3DD01E in' Fire of cables Zone 120. not required due to new safe shutdown strategy and field survey results.

-Encapsulate cable Field survey 12/31/83 1029A OG05H in Fire complete.

-Zone.147. Design in progress.

Fire zones changed due to field survey results.

Encapsulate OG03H Field survey ~ 12/31/83 1029A in Fire Zone- complete.

122. Design in progress.

Appendix I '

Paga 5 of 10 September 16, 1983 Expected Mod Description Status Completion Dates Mod. No.

Redesign 2A1706R - Outage Outage work 1029A cncapsulate OGO3H work complete. completed.

in Fire Zone 124. Only OG03H 12/31/83

-(now ZA0G03H) (non-outage) will be encapsulated.

Redesign 2A1603R - Outage work Outage work 1029D encapsulate ZB2BD01E in (redesign) completed. 1029A Fire Zone 125. complete. 12/31/83 Encapsulation of (non-outage) 2A1603R not necessary. Field survey complete and design in progress for encapsulation of ZB2BD01E.

Ralocate battery charger Design 2-EOO 1029C 2DD03, then complete. 1029A

-encapsulate related Outage work.

cables in Fire Field survey (Modification 2bne 126. in progrees involves outage for work to relocate encapsulation. battery charger .

The new outage schedule (Unit 2:

Spring '84) precludes encapsulation before the 12/31/83 expected completion date.)

Encapsulate ZB2BD01E, Encapsulation N/A 1029A ZBOB6143C and unnecessary due

, ZB2Bil22A in Fire Zone to new safe shutdown 126. strategy and field survey results.

Encapsulate Field survey 12/31/83 1029A

-ZA2A1505A in complete.

Fire Zone 127. Design in progress.

... .=

Appendix I Page 6 of 10 September 16,-1983 Expected Mod Description Status Completion Dates Mod. No.

Encapsulate ZB2D1802A,: . Field survey. 12/31/83 1029A B cnd ZB2BD01E in complete.

Fire Zone 128. Design in

. progress.

Encapsulate ZA2B1249, Field survey 2-EOO 1029A ZA2B143 and-ZC2B1247 complete.

in Fire- Zone 130. ' Design in (Due to the high level progress. of radiation during opera-tion in Fire Zone 130 and the lengths of the runs-of ZA2B1249 and ZCZB1247 (250 feet), this modification must be done during an outage.)

. Redesi gn Work Completed 1029D cables ZA160.3J, K, L, complete.

2A1706J, K, L-in Fire Zones 132, 133, 134 and 1135 as required.

Encapsulate ADS /CS Cable To Be Determined 1029A raceways in - requiring Fire Zone - encaps ulation 147. not yet defined

' Upgrade penetration seals Concentrating 3/1/84 1110 to required ratings as- on Unit 3

-proviously committed in- outage work. See cover letter.

. correspondence from J. W. Gallagher to D. G. Eisenhut, dated 10/14/81.

Change the settings on. Complete 3-Completed 2-1029G tthn"following 4kV in Unit 3. 2-EOO 3-1029H circuit. breakers: Awaiting Unit 2-152-1505, Unit 2

152-1705,--152-1806; outage.

Unit' 3-152-1505 ...-

Unit 2-design 152-1806. complete.

1

-Appendix I Page 7 of 10 September 16, 1983 Expected.

Mod Description Status Completion Dates Mod. No.

Change the' settings on ' Complete 3-Completed 3-1029H ths 480V load' center in Unit 3. 2-EOO 2-1029G

circuit breakers: Awaiting Unit 2-10131... 1322; Unit 2 Unit-3-1212 ...-1114.- outage.

Design complete.

'R: place the .following Qualified First refueling 2-1029J, 480V motor. control center breakers outage or planned Common-tagnetic-only circuit not outage that lasts at IO29K,.

breakers with thermal . currently least 60 days, com- 3-1029L magnetic. circuit breakers: available. mencing after 6/1/84.

Unit 2-3671 . . . - 2 8 51 ; 'Oualification Breakers still not Common-4955, 5055,-6131,- process in qualified. Schedule

' Unit 3-3851 .. 6033. progress. change due to

(Ao previously committed outage change caused Eto in correspondence f rom by Unit 2 forced outage.

S. L. Daltroff to D.'G.

'Eisenhut, dated January 12, 1983.)

Add new. ground overcurrent Design 2-EOO 1029M

.rolays1to the following complete.

4kV circuit' breakers: Relays Unit 152-1606 and ordered.

152-1709. Awai ti ng Unit 2 outage.

- Rsplace the existing Design 2-EOO 1029N

. ground overcurrent relays complete.

f or the following 4kV - Relays circuit breakers: ordered.

Unit-2; 152-1606 and' Awaiting 152-1704. Unit 2 outage.

Add' eigh't hour -battery Complete Complete except lO29R power supply capability. ( Alternative for resolution to the Emergency Lighting - shutdown of startup System in the following system design problems in

' locations : Main Control. will add 3 areas.

R:om,-Remote Shutdown additional P:nels,LCable Spreading ' areas.)

Room ' (selected locations ), .

- Four Emergency Switchgear-

' Rooms, HPSW Pump bays-and the fifth' bay in the DG

' Building.

.- . .- l Appsndix I Page 8 of 10 September 16, 1983 Expected Mod Description  : Status Completion Dates Mod. No.

Provide a water curtain Complete Completed .1029U in the west. corridors of rsector building, elev.

135 ; ' Units 2 and 3.-

Icolate the corridor Complete Completed 1029s behind the emergency

.cwitchgear rooms.

Provide dikes for Complete Completed 1029T Emsrgency Load Centers on elevation 165, Units - 2 and 3.

Provide smoke detectors Complete Completed 1029W in Fire Zones 78A and

. 82 since the zones have a fixed.

combustible loading and no' existing smoke-dstection-system.

Provide smoke detectors Complete Completed lO29W in Fire Zones 70, 72E, 72F, and 74 since the zones have a-fixed co2bustible loading-and no existing smoke antection system.

iProvide line type heat Testing in 9/27/83; (within 2 1029W

-dctectors in cable tray progress. months after-receipt

-in Fire . Zone 108 since . Material of materials)

.ths area has a fixed available combustible loading and 7/27/83.

no existing fire datection system.

Provide smoke detectors Complete Completed 1029W in Fire-Zones 76 and'77 due to-the possibility ~

of ' transient ' combustibles in these zones .

_ _ _ ~ , . - . . _ . - . .. . . ~

Appendix I Page 9 of 10 September 16, 1983 Expected 4

Mod Description' Status Completion Dates Mod. No.

Rsroute co'duit n ZB2D785 Design in 2-EOO 1029B

^

outside of Fire Zones progress. (administrative-

- 78B and' 78W. Materials controls will be available, provided after July 1, 1983, until completed.)

Additional Modifications Identified af ter ' original Safe Shutdown Report submittal.

l Encapsulate ZA2A1506A Complete Completed 1029A in Fire Zone 131.

Encapculate raceways Field ;s urveys 12/31/83 1029A

.ZAZM165 -and ZA2M166 'in progress.

in the north half of 1

' Fire Zone 5H.

Encapsulate raceway Field surveys 12/31/83 1029A.

ZB3P315' in the south in progress.

half of the Fire Zone 13H.

' Encapsulate eleven Field surveys To Be Determined 1029A

. raceways in Fire in progress.

Zone 72A as part of

- alternative shutdown

, Raroute 301019B and Design in 12/31/83 1029B

. encapsulate ' new progress.

- raceway in Fire Zone'78A.

. Rsrout'e.201019B, F Design in ' 12/31/83 1029B and encapsulate new progress raceway in-- Fire Zonef5H.

Encapsulate - ZC2A1705 A Design in 12/31/83 1029B

-and encapsulate in progress.

n:w raceway in Fire:

Zone 12C.

t

FE.-

' Appendix I Page 10 of 10 September 16, 1983 f'

Expected Mod Description Status ' Completion Dates Mod. No.

l 1029B Raroute_ZB202074A, Design in To Be Determined and. encapsulate progress.

- nsw;-racenay in' (part of CS/ ADS) 4 Fire Zone 4C.

Reroute-ZAB5944A Design'in 2 months f rom 1029B 4

from Fire Zone' progress. material availability 72B.

Install a single' Unit 3 3 - Completed -1029W enoke detector in Complete.

. thn_drywell access 4

hatch areas of- Unit 2 2 - Before end both units, Fire Design of present outage.

Zones 22 and 28. complete.

Tha detectors are Construction I to -be tied into existing in progress.

loops on 135' of the Rx Bldgs.

i Encapsulate ZD2P219 Field survey 12/31/83 1029A in Fire 7,one 6. .in progress

)

Encapsulate ZA2LO75 Field survey 12/31/83 1029A

. in Fire Zone 7. in progress.

! Encapsulate ZD3 LOO 4 Field survey; 12/31/83 1029A inLFire Zoneal5. in progress.

I L ' Install a single Design in Within 2 months 1029W c=oke detector in progress. after receipt of Firei Zone 65C. materials._

Th3 detector '. is - to be -

~

[.l . tied into the existing.

loop on 91'-6" of the s l Radwaste' Bldg.

l l  :

Install 100 3-hour _Approximately 6/1/84 1309 i rated fire dampers 1/3 of-the 100

' in HVAC ducts new dampers will be i - penetrating fire - ordered by 10/1/83.

barriers. Attempt Delivery time is

~

l -_to qualify 23~HVAC estimated to be

' with 2 existing 4 weeks. _ Desi gn 1 l/2 hour fire is 30% complete.

. danpers in series

. for their-I accoptability in

! cafe shutdown fira barriers.

I l.