ML20115J018

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Proposed Tech Specs 3/4.7.7,3/4.9.13 & Corresponding Bases Re Charcoal Test Methodology for Emergency Exhaust Sys
ML20115J018
Person / Time
Site: Callaway Ameren icon.png
Issue date: 07/18/1996
From:
UNION ELECTRIC CO.
To:
Shared Package
ML20115J007 List:
References
NUDOCS 9607230414
Download: ML20115J018 (10)
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Text

{{#Wiki_filter:-. i e j a l e i t i t i I r i ATTACHMENT 4A Hand-Marked Technical Specification Change Pages pages 3/4.7-18 3/4.9-18 B3/4.7-4 B3/4.9-3 l i a I l l l 4 i 9607230414 960718 PDR ADOCK 05000483 P PDR

.~ REVISION'$' i

  • PLANT SYSTEMS s.

I SURVEILLANCE REOUTREMENTS (Continued) Verifying within 31 days after removal that a laboratory analysis 2) of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2 March 1978, meets the laboratory testing criteria of S;d :t: y 2.v.i e;e rj C.id; L 52. 2:.

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L ro v., M- ' ' %,e;; 27.... ;%, T w.- e e..y ; LJid: prt etf r ' l 3) Verifying a system flow rate of 9000 cfm : 10% during system operation when tested in accordance with ANSI N510-1975. After every 720 hours of charcoal adsorber o'peration by verifying c. within 31 days after removal that a laboratory analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978, l meets the laboratory testing criteria of Aguieter,7 Teattier. C.C.e- ) I 2, H..G. 1;70, for ; :: thy! og of-Regel io.y % id;,1.;;, Rei;;eui!.,r. 1%,- A ST/'2 >J 302 -178 7 A 'ILD' J 3 3 0

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M fr -***+~,f $ lab p E *' r-f Aa A 2. % j c 3 l d. At least once per 18 months by: ~ i 1) Verifying that the pressure drop across the combined HEPA i filters and charcoal adsorber banks of less than 5.4 inches Water Gauge while operating the system at a flow rate of 9000 cfm : 10%, 2) Verifying that the system maintains the Fuel Buf1 ding at a ] / negative pressure of greater than or equal to k inch Water g -range relative to the outside atmosphere during system operation, 3) Verifying that the system starts on a Safety Injection test signal, and 4) Verifying that the heaters dissipate 37 ; 3 kW when tested in accordance with ANSI H51D-1975. Af ter each complete or partial replacement of a HEPA filter bank, by e. verifying that the cleanup system satisfies the.in-place penetration and bypass leakage testing criteria of less than 1% in accordance with ANSI H510-1975 for a DOP. test aerosol while operating the system at a flow rate of 9000 cfm : 10%; and f. Af ter 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 criteria of less than 1% in accordance with AH51.N510-1975 for a halogenated hydrocarton ref rigerant test gas while operating the system at a flow rate I I of 9000 cfm 10%. B I i .. J CALLAWAY - UNIT 1 3/4 7-16 i n. '~ ' -*...e. I l

{ REFUEL!NC OPERATJONS REVISION 1 SURVEltLANCE REOUIREMENT$ (Continued) i 2) of a representative carbon sample obtained in accordan Regulatory Position C.6.b of Regylatory Guide 1.52, Revision 2 P::it h a 0.~.. wf h ; h t ri S id: March 1978, meets the laboratory testing criteria of h =O1 1.52, R.,i.iun i, na n.n 6 7o, fer : %T.J. 3: 3ok f: din,.; net nkoA 70*h A 4 "J$' g f. w on 5,.u4 Asm D-3 oJ-081 M . T 1.n Verifying a system flow rate of 9000 cfm s.4J4, - *? ' q.fm e 6 2 %p 3) 10% during system operation when tested in accordance with ANSI N510-1975. After every 720 hours of charcoal adsorber operation, by verifying c. within 31 days after removal, that a laboratory analysis of a repre,- sentative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2. March 1978 meets the laboratory testing criteria of hs hterj P;;ithr. 0.;,.- f S p htery C W - ' ** Deteia 9 u . mh 1070, Tu,. 0,yi 4.g 3; g__q...,'~~~"--* p A p, s_A LTi4.D-3303-11J1 A %%L &30*C 4 A 7@s ,. e.a. n. - c-d. At least once h,er 18 months by: _-_t r - ;4m g.a%)* 1) Verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is less than 5.4 inches Water Gauge while operating the system at a flow rate of 9000 cfm = 10%; ~ 2) test signal, the system automatically starts (unless alre I operating) and directs its exhaust flow through the HEPA filters / exhaust flow to the auxiliary / fuel building exhaust fan;and 3) Verifying that the system maintains the Fuel Building at a negative pressure of greater than or equal to 1/4 inch Water Gauge relative to the outside atmosphere during system operation; and 4) Verifying that the heaters dissipate 37 2 3 kW when tested in accordance with ANSI N510-1975. Af ter each complete or partial replacement of a HEPA filter bank e. verifying that the cleanup system satisfies the in-place penetration , by and bypass leckage testing acceptance criteria of less than 1% in accordance with ANSI N510-1975 for a 00P test aerosol while operating the system at a flow rate of 9000 cfm i IC%; and f. Af ter 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 criteria of less than 1% in accordance with ANSI N510-1975 for a halogenated hydrocarbon refrig-erant test gas while operating the system at a flow rate of 9000 cfm i 10%. ~ CALLAWAY - UNIT 1 '1 3/4 9-18 L

REVISgay 3 ^"' ~ REFUELINC OPERATIONS g e SURVEILLANCE REOUIREMENTS (Continued) Verifying, within 31 days af ter removal that a laboratory analysis 2) of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regylatory Guide 1.52, Revision 2 March 1978, meets the laboratory testing criteria of Reg.ietsrj h;ith.. ;.L.. wT Ceguhterj Cric: 1.52, Ru i.iva i, rima 1575, L oud Asm b-JacJ-I?Ji Sae. ty.J. 42: 3ok kdM; p;nct eti l., T 6. A ;

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3) Verifying a system flow rate of 9000 cfm 10% during system operation when tested in accordance with ANSI N510-1975. After every 720 hours of charcoal adsorber operation, by verifying, c. within 31 days after removal, that a laboratory analysis of a repre-sentative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2 March 1978, meets the laboratory testing criteria of ";;s ht; j-.;;it k a 0.G.. o.uce<nn 9, u -e ;; c, rm, gg sg.-p,,4;c j ct.< a. ! e p. W M " ^h.b-3803-1131 A t.J f. 2. 30*'C. a A7 57AWM ,. e :..,en;tr:tf-Of k;; th: kdfd; p ( h C 2 *4 ' ce. J d. At lease once h,er 18 months by: Verifying that the pressure drop across the combined HEPA 1) filters and charcoal adsorber banks is less than 5.4 inches Water Gauge while operating the system at a flow rate of 9000 cfm 10%; ~ Verifying that on a Spent Fuel Pool Gaseous Radioactivity-High / 2) test signal, the system automatically starts (unless already ) operating) and directs its exhaust flow through the HEPA filters ) I and charcoal adsorber banks and isolates the normal fuel building exhaust flow to the auxiliary / fuel building exhaust fan; Verifying that the system maintains the Fuel Building at a 3) negative pressure of greater than or equal to 1/4 inch Water Gauge relative to the outside atmosphere during system operation; and 4) Verifying that the heaters dissipate 37 2 3 kW when tested in accordance with ANSI N510-1975. Af ter each complete or partial replacement of a HEPA filter bank, by verifying that the cleanup system satisfies the in-place penetration e. and bypass leckage testing acceptance criteria of less than 1% in accordance with ANSI H510-1975 for a DOP test aerosol while operating the system at a flow rate of 9000 cfm i 1C%; and Af ter each complete or partial replacement of a charcoal 'adsorber f. bank by verifying that the cleanup system satisfies the in-place penetration and bypass leakage testing criteria of less than 1% in for a halogenated hydroc'arbon refrig-accordance with ANSI N510-1975 erant test gas while operating the system at a flow rate of 9000 cfm i 1C%. .i ':3 CALLAWA'i - UNIT 1 3/4 9-18 We

i PLANT SYSTEMS BASES ULTIMATE HEAT SINX (Continued) The limitations on minimum water level and maximum temperature are based on providing a 30-day cooling water supply to safety-related equipment without i i exceeding its design basis temperature and are consistent with the recommendations of Regulatory Guide 1.27, " Ultimate Heat Sink for Nuclear Plants," March 1974. 3/4.7.6 CONTROL ROOM EMERGENCY VENTILATION SYSTEM The OPERABILITY of the Control Room Emergency Ventilation System ensures that: (1) the ambient air temperature does not exceed the allowable temperature for continuous-duty rating for the equipment and instrumentation cooled by this system, and (2) the control room will remain ha >itable for operations personnel during and following all credible accident conditions. Operation of the system with the heaters. operating to maintain low humidity using automatic' control for at least 10 continuous hours in a 31-day period is sufficient to reduce the buildup of moisture on the charcoal adsorbers and HEPA filters. The OPERABILITY of this system in conjunction with Control Room design provisions is based on limiting the radiation exposure to personnel occupying the control room to 5 rems or less whole bcdy, or its equivalent. This limitation is ccnsistent with the requirements of General Design !h Criterion 19 of Appendix A, 10 CFR Part 50. ANSI N510-1975 will be used as a _,f procedural guide for in-place surveillance testing. ASTM D-3803-1989 will be used as a procedural guide for the laboratory testing of carbon samples. 3/4.7.7 EMERGENCY EXHAUST SYSTEM The OPERABILITY of the Emergency Exhaust System assures that radioactive materials leaking from the ECCS equipment within the pump room following a LOCA are filtered prior to reaching the environment. Operation of the system with the heaters operating to maintain low humidity using automatic control for at least 10 continuous hours in a 31-day period is sufficient to reduce the buildup of moisture on the charcoal adsorbers and HEPA filters. The operation of this system and the resultant effect on offsite dosa0e calculations was assumed in the safety analyses. ANSI N510-1975 will be used as a procedural guide for surveillance testing. A 5TM D 5acMi39 M h k' a _ 7.= + s p f.L k e =q % -{ A f :i l i CALLAWAY - UNIT 1 B 3/4 7-4 Amendment No. 106 l l

O ~ REFUEllNG OPERATIONS BASES I removal capability. With the reactor vessel head removed and at least 23 feet of water above the reactor vessel flange, a large heat sink is available for core cooling. Thus, in the event of a failure of the operating RHR loop, adequate time is provided to initiate emergency procedures to cool the core. 3/4.9.9 CONTAINMENT VENTILATION SYSTQ3 The OPERABILITY of this system ensures that the containment purge penetrations will be automatically isolated upon detection of high radiation j levels within the containment. The OPERABILITY of this system is required to restrict the release of radioactive material from the containment atmosphere to the environment. 3 /4. 9.10 and 3 /4. 9.11 WATER LEVEL - REACTOR VESSEL and STORAGE POOL The restrictions on minimum water level ensure that sufficient water depth is available to remove 99% of the assumed 10% iodine gap activity released from the rupture of an irradiated fuel assembly. The minimum water depth is consistent with thr assumptions of the safety analysis. ( 3/4.9.12 ' SPENT FUEL ASSEMBLY STORAGE The restrictions placed on spent fuel assemblies stored in Region 2 of I

he spent fuel pool ensure inadvertent criticality will not occur.

3/a.9.13 EMERGENCY EXHAUST SYSTEM The limitations on the Emergency Exhaust System ensure that all radioactive materials released from an irradiated fuel assembly will be filtered through the HEPA filters and charcoal adsorber prior to discharge to the atmosphere. Operation of the system with the heaters operating to i maintain low humidity using automatic control for at least 10 continuous hours in a 31-day period is sufficient to reduce the buildup of moisture on the adsorbers and HEPA filters. The OPERABILITY of this system and the resulting iodine removal capacity are consistent with the assumptions of the safety analyses. ANSI N510-1975 will be used as a procedursi guide for. surveillance testing. /LSrM b-non-na ? J A M a a F+=f f [* 4 g 4 W my. i t l 4 CALLAWAY - UNIT 1 B 3/4 9-3 Amendn.ent No. 81 1

t ~ i i i I i ATTACHMENT 4B 1 i Re-Typed Technical Specification Change Pages j pages 3/4.7-18 3/4.9-18 l B3/4.7-4 B3/4.9-3 i L i

I l ^ PLANT SYSTEMS l SURVEILLANCE REQUIREMENTS (Continued)

2) Verifying within 31 days after removal that a laboratory analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978, meets the laboratory testing criteria of ASTM D-3803-1989 when tested at 30 C and 70% relative humidity, for a methyliodide penetration of less than 2%, and
3) Verifying a system flow rate of 9000 cfm i 10% during system operation when tested in accordance with ANSI N510-1975.

c. After every 720 hours of charcoal adsorber operation by verifying within 31 days after removal that a laboratory analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978, meets the laboratory testing criteria of ASTM D-3803-1989 when tested at 30 C and 70% relative humidity, for a methyl iodide penetration of less than 2%: d. At least once per 18 months by:

1) Verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks of less than 5.4 inches Water Gauge while operating the system at a flow rate of 9000 cfm 10%,
2) Verifying that the system maintains the Fuel Building at a negative pressure of greater than or equal to % inch Water Gauge relative to the outside atmosphere during system operation,
3) Verifying that the system starts on a Safety injection test signal, and
4) Verifying that the heaters dissipate 37 i 3 kW when tested in accordance with ANSI N510-1975.

e. After each complete or partial replacement of a HEPA filter bank, by verifying that the cleanup system satisfies the in-place penetration and bypass leakage testing criteria of less than 1 % in accordance with ANSI N510-1975 for a DOP test aeroso! while operating the system at a flow rate of 9000 cfm i 10%; and f. 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 criteria of less 1% in accordance with ANSI N510-1975 for a halogenated hydrocarbon refrigerant test gas while operating the system at a flow rate of 9000 cfm i 10%. CALLAWAY - UNIT 1 3/4 7-18

REFUELING OPERATIONS SURVEILLANCE REQUIREMENTS (Continued)

2) Verifying within 31 days after removal that a laboratory analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978, meets the laboratory testing criteria of ASTM D-3803-1989 when tested at 30 C and 70% relative humidity, for a methyliodide penetration of less than 2%,
3) Verifying a system flow rate of 9000 cfm i 10% during system operation when tested in accordance with ANSI N510-1975.

c. After every 720 hours of charcoal adsorber operation by verifying within 31 days after removal, that a laboratory anslysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978, meets the laboratory testing criteria of ASTM D-3803-1989 when tested at 30 C and 70% relative humidity, for a methyl iodide penetration of less than 2%; d. At least once per 18 months by:

1) Verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks of less than 5.4 inches Water Gauge while operating the system at a flow rate of 9000 cfm i 10%,
2) Verifying that on a Spent Fuel Pool Gaseous Radioactivity-High test signal, the system automatically starts (unless already operating) and directs its exhaust flow through the HEPA filters and charcoal adsorber banks and isolates the normal fuel building exhaust flow to the j

auxiliary / fuel building exhaust fan, i

3) Verifying that the system maintains the Fuel Building at a negative pressure of greater than or equal to % inch Water Gauge relative to the outside atmosphere during system operation, and
4) Verifying that the heaters dissipate 37 i 3 kW when tested in accordance with ANSI N510-1975.

e. After each complete or partial replacement of a HEPA filter bank, by verifying that the cleanup system satisfies the in-place penetration and bypass leakage testing criteria of less than 1% in accordance with ANSI N510-1975 for a DOP test aerosol while operating the system at a flow rate of 9000 cfm 10%; and f. 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 criteria of less 1% in accordance with ANSI N510-1975 for a halogenated hydrocarbon refrigerant test gas while operating the system at a flow rate of 9000 cfm i 10% CALLAWAY - UNIT 1 3/4 9-18

) 4 PLANT SYSTEMS BASES ULTIMATE HEAT SINK (Continued) The limitations on minimum water level and maximum temperature are based on providing a 30-day cooling water supply to safety-related equipment without exceeding its design basis temperature and are consistent with the recommendations of Regulatory Guide 1.27, " Ultimate Heat Sink for Nuclear Plants," March 1974. 3/4.7.6 CONTROL ROOM EMERGENCY VENTILATION SYSTEM The OPERABILITY of the Control Room Emergency Ventilation System ensures that: (1) the ambient air temperature does not exceed the allowable temperature for continuous-duty rating for the equipment and instrumentation cooled by this system, and (2) the control room will remain habitable for operations personnel during and following all credible accident conditions. Operation of the system with the heaters operating to maintain low humidity using automatic control for at least 10 continuous i hours in a 31-day period is sufficient to reduce the buildup of moisture on the charcoal adsorbers and HEPA filters. The OPERABILITY of this system in conjunction with Control Room design provisions is based on limiting the radiation exposure to personne; I occupying the control room to 5 rems or less whole body, or its equivalent. This limitation is consistent with the requirements of General Design Criterion 19 of Appendix A,10 CFR Part 50. ANSI N510-1975 will be used as a procedural guide for in-place surveillance testing. ASTM D-3803-1989 will be used as a procedural guide for the laboratory testing of carbon samples. 3/4.7.7 EMERGENCY EXHAUST SYSTEM The OPERABILITY of the Emergency Exhaust System assures that radioactive materials leaking from the ECCS equipment within the pump room following a LOCA are filtered prior to reaching the environment. Operation of the system with the heaters operating to maintain low humidity using automatic control for at least 10 continuous hours in a 31-day period is sufficient to reduce the buildup of moisture on the charcoal adsorbers and HEPA filters. The operation of this system and the resultant effect on offsite dosage calculations was assumed in the safety analyses. ANSI N510-1975 will be used as a procedural guide for surveillance testing. ASTM D-3803-1989 will be used as a procedural guide for the laboratory testing of carbon samples. CALLAWAY - UNIT 1 B 3/4 7-4 Amendment No.106

'f REFUELING OPERATIONS BASES removal capability. With the reactor vessel head removed and at least 23 feet of water above the reactor vessel flange, a large heat sink is available for core cooling. Thus,in the event of a failure of the operating RHR loop, adequate time is provided to initiate emergency procedures to cool the core. 3/4.9.9 CONTAINMENT VENTILATION SYSTEM The OPERABILITY of this system ensures that the containment purge penetrations will be automatically isolated upon detection of high radiatien levels within the containment. The OPERABILITY of this system is required to restrict the release of radioactive material from the containment atmosphere to the environment. 3/4.9.10 and 3/4.9.11 WATER LEVEL - REACTOR VESSEL and STORAGE POOL The restrictions on minimum water level ersure that s.sificient water depth is available to remove 99% of the assumed 10% iodir.: eep activity released from the rupture of an irradiated fuel assembly. The minimum water depth is consistent with the assumptions of the safety analysis. 3/4.9.12 SPENT FUEL ASSEMBLY STORAGE i i The restrictions placed on spent fuel assemblies stored in Region 2 of the spent i fuel pool ensure inadvertent criticality will not occur. j I 3/4.9.13 EMERGENCY EXHAUST SYSTEM i The limitations on the Emergency Exhaust System ensure that all radioactive materials released from an irradiated fuel assembly will be filtered through the HEPA filters and charcoal adsorber prior to discharge to the atmosphere. Operation of the system with the heaters operating to maintain low humidity using automatic control for at least 10 continuous hours in a 31-day period is sufficient to reduce the buildup of moisture on the adsorbers and HEPA filters. The OPERABILITY of this system and the resulting iodine removal capacity are consistent with the assumptions of the safety analyses. ANSI N510-1975 will be used as a procedural guide for surveillance testing. ASTM D-3803-1989 will be used as a procedural guide for the laboratory testing of charcoal samples. CALLAWAY - UNIT 1 B 3/4 9-3 Amendment No. 81}}

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