Text

Forwards Required Interim Tech Specs Based on Granting Deferral for Msivs,Ventilation Sys Control Room & Operability of Exhaust Filter Sys
	ML20093M296
Person / Time
Site:	Byron
Issue date:	10/04/1984
From:	Farrar D; COMMONWEALTH EDISON CO.
To:	Harold Denton; Office of Nuclear Reactor Regulation
References
	NUDOCS 8410220051
	Download: ML20093M296 (12)
	v • d • e

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. /^N Commonweilth Edison

) One First Nationit Plua. Chic 1go. Ilknois

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( } Address R: ply to: Post Othc3 Box 767

% j Chicago. Illinois 60690 .

October 4,1984 Mr. Harold R. Denton, . Director Office of Nuclear Reactor Regulations U.S. Nuclear Regulatory Coinrission Washington, D.C. 20005

SUBJECT:

Byron Generating Station Units 1 and 2 Technical Specifications NRC Docket Nos. 50-454 and 50-455

Dear Mr. Denton:

In accordance with our review of the September 24, 1984 deferral letter from L.0. Del George to Harold R. Denton, we have currently identified certain Tech Specs which require interim Tech Specs based

.on the granting of the deferral. Those currently identified are included as attachments to this letter.

Each interim Tech Spec is worded to be consistent with the MODES and time requirements as discussed in the deferral letter.

Very ruly yours, w

Dennis L. Farrar ;

Director, Nuclear Licensing '

l cc: NRC Senior Resident Inpsector - Byron Lenny 01shan 8410220051 PDR ADOCK e4100405000454 PDR A

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i INTERIM TECHNICAL SPECIFICATION i1 SYSTEM: its Main Steam itSIV's DESCRIPTION: MSIV's (lMS001A-D) drift open STATUS: End of cycle position switches have been adjusted, retest remains.

TECH SPEC APPLICABILITY: ifode 3 ,.

COMPLETION REQUIRED PRIOR T0:

Initial Criticality (tiode 2)

BASIS: Fission product inventory and resultant effluent are within radiological release limits up to an equivalent of 10 full power days of operation not exceeding 25% power. Additional details are contained in October 27, 1983, letter from T. R. Tram to H. R. Denton.

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PLANT SYSTEMS MAIN STEAM LINE ISOLATION VALVES LIMITING CONDITION FOR OPERATION 3.7.1.IEachmainsteamlineisolationvalve(MSIV)shallbeOPERABLE. ,

APPLICABILITY: MODES 1, 2, and 3.

ACTION:

MODE 1:

With one MSIV inoperable but open, POWER OPERATION may continue provided the inoperable valve is restcred to OPERABLE status within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months ; otherwise be in HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in HOT SHUTDOWN within the following 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

MODES 2 and 3:

With one MSIV inoperable, subsequent operation in MODE 2 or 3 may proceed provided the isolation valve is maintained closed. The provisions of Specification 3.0.4 are not applicable. Othenvise, be in HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in HOT SHUTDOWN within the following 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

SURVEILLANCE REQUIREMENTS 4.7.1.5 Each MSIV shall be den nstrated OPERABLE by verifying full closure within 5 seconds when tested pursuant to Specification 4.0.5. The provisions l

of Specification 4.0.4 are not applicable for entry into MODE 3. ,

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Not reguired bs9ece- ini&l criticality on Cy cle. l .

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i BYRON - UNIT 1 3/4 7-9

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INTERIM TECHNICAL SP' ECIFICATION i 2 m..

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SYSTEM: VC Control Room Ventilation

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. DESCRIPTION: Control room boundary differential pressure of 1/8 in.

water gauge not achieved STATUS: 1/8 in, water gauge differential pressure with respect to

.< ambient has bean established during operation of redundant i '

" Train B. Train A balancing damper adjustments in process. A 1/8 in. water gauge differential relative to auxiliary building surrounding areas requires-the auxiliary building ventilation system (VA).

TECH SPEC APPLICABILITY: -

Mode 6 it

'#~" COMPLETION REQUIRED PRIOR TO:

For Train A, 1/8 in, water gauge differential with respect to ambient will te complete prior to initial criticality (Mode 2). For Train a and B, 1/8 in, water

,3 gauge differential with respect to surrounding areas will be obtained prior to accumulating 10 effective full power days at power levels not exceeding 25% power.

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BASIS: Fission product inventory is trivial in comparison to the inventories employed by FSAR Safety Analysis, and therefore.

- will not threaten Control Room habitability. See October 27, 1983 letter from T.R. Tramm to H. R. Denton.

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'AtlR ') o G 4 3/4.7.6 CONTROL ROOM VENTILATION SYSTEM '=I LIMITING CONDITION FOR OPERATION 3.7.[TwoindependentControlRoomVentilationSystemsshallbeOPERABLE.

APPLICABILITY: All MODES.

ACTION:

MODES 1, 2, 3 and 4:

With one Control Room Ventilation System inoperable, restore the inoperable system to OPERABLE status within 7 days or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

MODES 5 and 6:

a. With one Control Room Ventilation System inoperable, restore the inoperable system to OPERABLE status within 7 days or initiate and maintain operation of the remaining OPERABLE Control Room Ventilation System in the make-up mode.

b. With both Control Room Ventilation Systems inoperable, or with the OPERABLE Control Room Ventilation Jystem, required to be in the make-up mode by ACTION a. not capable of being powered by an OPERABLE emergency power source, suspend all operations involving CORE ALTERATIONS or positive reactivity changes.

SURVEILLANCE REQUIREMENTS 4.7.6 Each Control Room Ventilation System shall be demonstrated OPERABLE:

a. At least once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months by verifying that the control room air temperature is less than or equal to 90'F;

b. At least once per 31 days on a STAGGERED TEST BASIS by initiating,

- from the control room, flow through the HEPA filters and charcoal.

adsorbers and verifying that the system operates for at least 10 continuous hours with the duct heaters operating;

c. At least once per 18 months or (1) after any structural maintenance i

on the HEPA filter or charcoal adsorber housings, or (2) following l painting, fire or chemical release in any ventilation zone l communicating with the make-up system filter plenum by:

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i BYRON - UNIT 1 3/4 7-15

"MlR 0 0 @4 d I 3/4.7.6 CONTROL ROOM VENTILATION SYSTEM LIMITING CONDITION FOR OPERATION

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3.7.6 T.. in ;;;;d;r.t Control Room Ventilation System / shall be OPERABLE.

APPLICABILITY: ?.11 =25, 3% S 6 3 ACTION:

MODES p, T 3 and 4:

4 howes.

With one+h< Control Room Ventilation System 'noperable, restore the inoperable system to OPERABLE status within 7 .;- r be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

MODES 5 and 6:

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_=^=-"a -ad-by ^"T!CM ;. c.;t ;;;eLie f .;ny yw.. eu vy on 0"5"'?.: ;;;c;;n;3 r ... ... us, suspend all operations involving CORE ALTERATIONS or positive reactivity changes.

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SURVEILLANCE REQUIREMENTS T*bt.

4.7.6 ,Eeeh Control u,om Ventilation System shall be demonstrated OPERABLE:

a. At least once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months by verifying that the control room air temperature is less than or equal to 90*F;

b. At least once per 31 days on a STAGGERED TEST BASIS by initiating, from the control room, flow through the HEPA filters and charcoal.

adsorbers and verifying that the system operates for at least 10 continuous hours with the duct heaters operating;

c. At least once per 18 months or (1) after any structural maintenance l on the HEPA filter or charcoal adsorber housings, or (2) following painting, fire or chemical release in any ventilation zone communicating with the make-up systes filter plenum by:

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, SJ..EIu.ANCE REQUIREMENTS (Continueo)'

3) Verifying that thd Make-up System maintains the control room at a positive nominal'pren ure or greater than or equal to 1/8 inch Water Gauge relative to ambient pressure in areas adjacent to this Control Room Area and

4) Verifying that the heaters dissipate 27.2 2.7 kW when tested in accordance with ANSI N510-1975.

f. After each complete or partial replacement of a HEPA filter bank, by l verifying that the cleanup system satisfies the in place penetration '

and bypass leakage testing acceptance criteria of less than 0.05% in 1 accordance with. ANSI N510-1975 for a 00P test aerosol while operating '

thi cystem at a flow rate of 6000 cfm + 10% for the Make-up System; and ,

g. After each complete or partial replacement of a charcoal adsorber bank, by verifying that the cleanup system satisfies the in place - -

penetration'and bypass leakage testing acceptance criteria of less than 0.05% in accordance with ANSI N510-1975 for a halogenated hydro-carbon refrigerant test gas while operating the system at a flow rate o'f 6000 cfm 10% for the Make up System.

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Prior to Ten E f f ective. F ull or 24 7a power'(Cycle 1), t his Da34 is s urvei llance reguir e merit-that the. make-up.

3) Verifging m ain te/ns, t h e C ontro l System R oom of a pos-i tiv e pressure to all adjacent with respe.ct ares

B RON - UNIT 1 3/4 7-17

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. INTERIM TECHNICAL SPECIFICATION # 3 a

SYSTEM: VA Auxiliary Building Ventilation DESCRIPTION: OPERABILITY of Exhaust Filter System not required at Fuel Load STATUS: Under Construction TECH SPEC APPLICABILITY: Modes 1, 2, 3, and 4 F

COMPLETION REQUIRED PRIOR TO: Ten full power days of operation, not exceeding 25% of full power i

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l BASIS: Fission product inventory and resultant gaseous effluent are within radiological release limits up to an equivalent of ten full power days of operation, not exceeding 25% of r full power. Additional details contained in October 27, 1983, letter from T. R. Tramm to H. R. Denton.

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J..7 C,-ACCESSIELE AREA E.XHAUST FILTER PLEfG4 VENTILATION 5:57EM SEr 1 2 'fla LIMITING CONDITION FOR OPERATION I W6 Y

3.7.7 Three independent non-accessible area exhaust filter' plenums (50%

cacacity each) shall be OPERABLE.

-APPLICABILITY: MODES 1, 2, 3, and 4.

ACTION:

With one non-accessible area exhausti filter blenum inoperable, restore the inoperable plenum to OPERABLE status'wtInin 7 days or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 . hours. .

SURVEILLANCE REQUIREMENTS -

4'. 7. 7 Eachn'on-accessibleareaexhaust'. filter,plenump~hallbedemonstrated OPERABLE:

a. At least once per 31 days on a STAGGERED TEST BASIS by initiating,'

from the control room, flow through the HEPA filters and charcoal adsorbers and verifying that operation occurs for at least 15 minutes;

b. At least once per 18 months, or (1) after any structural maintenance on the HEPA filter or charcoal adsorber hoosi.ngs, or (2) following painting, fire, or chemical telease in any ventilation zone communi-cating with the exhaust filtar plenum by:

1) Yerifying that the exhausts. filter plenum satisfies the in place penetration and bypass leakage testing acceptance criteria of less than 1.0% when using the test procedure guidance in Regulatory Positions C.S.a, C.S.c and C.5 d of Regulatory Guide 1.52, Revi-sion 2, March 1978, and the flow rate is 65,900 cfm 10%;

2) Verifying, within 31 days after removal, that a lat: oratory analysis of a representative carbon sample from each filter obtained in accordance with Regulatory Position C.6.b of Regula-tory Guide 1.52, Revision 2, March 1978, meets the laboratory testing criteria of Regulatory Position C.6.a of Regulatory Guide 1.52, Revision 2, March 1978, when the average of the methyl iodide penetration for the three samples is less than 7.1%;

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TABLE NOTAT:CNS b k bfM(( um

With new fuel or irradiated fuel in the fuel stort;e areas or fuel bu'ilcing.

"" Trip Setpoint is to be established sucn that tne uctual suomersion dose rate would not exceed 10 mR/hr in the containment building. For containment purge or vent the Setpoint value may be increased up to twice the maximum concentra-tion activity in the containment determined by the sample analysis performec prior to each release in accordance with Table 4.11-2 provided the value does not exceed 10% of the equivalent limits of Specification 3.11.2.1.a in accord-ance with the method:':gy and parameters in the 00CM.

- ACTION STATEMENTS ACTION 26 - With less than the Minimum Channels OPERASLE requirement, or eration may continue provided the containment purge valves aru maint.ained closed.

ACTION 27 -

With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirer,ent, within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months isolate th2 Control Room Ventilation System snd initiate operation of the. Control Room Make-up System.

ACTION 28 - Must 54tisfy the ACTION requirement for Specification 3.4.6.1.

-A f ter ren E F E ective Full Powec Da3s oe a,s % Pour (.C3 cle i only ACTION 29 - Jith the number of OPERABLE channels one less than the Minimum i Channels OPERABLE requirement, ACTION a. of Specification 3.9.12 must be satisfied. With both enannels inoperable, provide an appropriate portable continuous monitor with the same Alarm Set-

! point in the fuel pool area cr.c m isfy ACTION t. f 3aci'ic:. "-

^ '" ' ^ " with one Fuel Handling Building Exhaust filter plenum l

4 in operation. CHweconse_ saHs69 AcncM b. of- Spe64ccHm

3. 9.12..

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O REFUELING OPERATIONS 3/4.9.4 CONTAINMENT BUILDING PENETRATIONS g gg g LIMITING CONDITION FOR OPERATION 3.9.4 The containment building penetrations shall be in the following status:

a. The personnel hatch should have a minimum of one door closed at any one time and the equipment hatch shall be in place and held by a minimum of four bolts or 4he. e Surveillance. Reguirern,ent 4.9.4gPrned hatA remod por sucxd b

b. A minimum of one door in the personnel emergency exit hatch is closed, and

c. Each penetration providing direct access from the containment atmosphere to the outside atmospnere shall be either:

1) Closed by an isolation valve, blind flange, or manual valve, or

2) Capable of being closed by an OPERABLE automatic containment purge isolation valve. .

APPLICABILITY: During CORE ALTERATIONS or movement of irradiated fuel within

(' the containment.

ACTION:

With the requirements of the above specification not satisfied, immediately

suspend all operations involving CORE ALTERATIONS or movement of irradiated fuel in the containment building.

SURVE7LLANCE REQUIREMEN'3 4.9.4.1 Each of the above required containment building penetrations shall be

determined to ba either in its closed / isolated condition or capable of being closed by an OPERABLE automatic containment purge isolation valve within 100 hours0.00116 days 0.0278 hours 1.653439e-4 weeks 3.805e-5 months prior to the start of and at least once per 7 days during CCRE ALTERATIONS or movement of irradiated fuel in the containment building by

l a. Verifying the penetrations are in their closed / isolated condition, or l

l b. Testing the containment purge isolation valves per the applicable portions of Specification 4.6.3.2.

. 4. 9. 4. 2. See Ins d l

l l BYRON _ UNIT 1 _ __

3/4 9-4 _ _ _ _ _ _ _. . ___ _ _ _ _ _ _ _ _ _ _ _ . _ _ .

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4. 9. 4. 2f~ Ver;4 9 % f +he Fuel Handliny Building Exhaush Filler Plenorns maintain 4he Fuel BuiIdiny of a neyah*te. preauce of-greakr hw or ylwHk fo V4 inch Lonkr gav3t. reloHA lo iht ovFJid* atmosphge, ihe qu',pmenf hatch removal i

0. Prior ib CocE ALTFEAT/oN5 or (noremen E of rracliafed Gel and b.

A4-thcVement ch area leash once. yw d,afeil fueI'l days durin} COGE Verificah'an cf ne Ah've- pressure will be- perforrned uiR Sykms in -4he. normal sruse#9cs move.

u ntl / Te n E -P -T CC Y N C'

-)( - /Vot a g lic a ble f U pull 90 u) < I D#M c gg pou) er (Cy Cle / on lg ).

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ML20093M296

Text

SUBJECT:

Dear Mr. Denton:

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