ML20086A592

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Proposed Tech Specs Re Min Heater Capacity,Charcoal Absorber Decontamination Efficiency & Relative Humidity Testing Requirements
ML20086A592
Person / Time
Site: Vogtle  Southern Nuclear icon.png
Issue date: 11/11/1991
From:
GEORGIA POWER CO.
To:
Shared Package
ML20086A591 List:
References
NUDOCS 9111190247
Download: ML20086A592 (12)
v • d • e


Text

. _ . -

, . PLANT SYSTEMS

-SURVEILLANCE REQUIREMENTS (Continued)

3) Verifying that the system maintains the control room at a positive pressure of greater than or equal to 1/8 inch Water Gauge at less than or equal to a pressurization flow of 1500 cfm relative to adjacent areas during system operation and -
4) Verifying that the heaters dissipate 110 (1 LJ when tested inMintn accordance with Section 14 of ANSI N510-1980;
f. Af ter each complete or partial replacement of a HEPA filter bank, by verifying that the HEPA filter banks remove greater than or equal to 99.95% of the DOP when they are tested in* place in accordance with Section 10 of ANSI N510-1980 while operating the system at a flow rate of 19,000 cfm i 10%; and
g. After each complete or partial replacement of a charcoal adsorber-  !

bank, by ver.ifying that the charcoal absorbers remove greater than or equal to 99.95% of a halogenated hydrocarbon refrigerant test gas when tested-in place in accordance with Section 12 of ANSI N510-1980 while operating the system at a flow rate of 19,000 cfm 2 10%. ,

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l-V0GTLE UNITS - 1 & 2 3/4 7-16 9111190247 911111 eDR P

Apocg 0500o424 \ -c;>

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PLANT SYSTEMS 3/4.7.7 PIPING PEHETRATION AREA FILTRATION AND EXHAUST SYSTEM SURVEILLANCE REQUIREMENTS (Continued)

2) Verifying within 31 dr.ys after removai that a laboratory analysis of a representative carbon sample obtained in accordance with Section 13 of ANSI H510-1980 meets the laboratory testing cri-terion of greater than or equal to 49 when tested with methyl iodide at 30'C and relative humidity.

75 % 90,og

3) Verifying a system flow ra of 15,500 cfm i 10% during system operation when tested in accordance with Section 8 of ANSI H510-1980, c.

After every 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> of charcoal adsorber operation, by verifying, within 31 days after removal, that a laboratory analys s of a repre-sentative carbon sample obtained in accordance with Section 13 cf ANSI H510-1980 meets the laboratory testing criteria of greater than or equal to .

when te_sted_with methyl iodide at 30*C and 90%-

relative humidity; yo,g y,

' g,

d. At least once per 18 months by:
1) Verifying that the pressure drcp across the combined HEPA filters and charcoal adsorber banks is less than 6 inches Water Gauge while operating the system at a flow rate of 15,500 cfm i 10%.
2) Verifying that the system starts on a Containnnt Ventilation Isolation test r.ignal,
3) Verifying that the system maintains the Piping Penetration Fil-tration Exhaust Unit Room at a negative preso re of greater than or equal to 1/4 inch Water Gauge relativa to the outside atmosphere (PDI-2550, POI-2551), and j,yy,gyg ,

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4) Verifying that the heaters dissipate 4- W when tested in accordance with Section 14 of ANSI N510-1980.%
e. Af ter each complete or partial replacement of a HEPA filter bank by verifying that the HEPA filter banks remove greater than or equal to 99.95% of the DOP when they are tested in place in accordance with Section 10 of ANSI N510-1980 while operating the system at a flow rate of 15,500 cfm i 10%.
  • Unti' r :':rt f:11: d ; th: f: rth r:' :1'ng ::t:;: f Unit 1 :nd unti' e-
t:rt f 11: d ; th: ;;=nd r;f :lin; ::t:;; :f Unit- 2 thi  :; = i " :: tie" th ! L r = d = f:1 h.;::

'h: :tr= ill =:: g t: :=du;;;d by ;;rying that ' ster

- ::;=ity i: : f'ici=t t: :imt:i; th: :!: tin '. :idity :f th: f r:tr thr: ;n th: lt:r: :t70;;r:=t:rin; =d 7 ::;ign L::i; =:ident :=di-ti;r: *:r t::t:d i; :::;rd:n;;

ith -se:d:n 14 ef ANSI N510- 1000.

V0GTLE UNITS - 1 & 2 3/4 7-18 Amendment No. 37 (Unit 1)

Amenoment No. 17 (Unit 2)

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- REFUELING OPERATIONS SURVEILLANCE REQUIREMENTS (Continued) 'l-

1) Verifying that the cleanup system satisfies the in place testing acceptance criteria of greater than or equal to 99.0% filter retention while operating the system at a flow rate of 5000 cfm 210%, (FI-12551, FI-12552) and performing the following tests; (a) A visual inspection of the Fuel Handling Building Post Accident Ventilation System shall be made before each DOP test-or activated carbon adsorber section leak test in accordance with Section 5 of ANSI N510-1980.

(b) An in place DOP test for the HEPA filters shall be per-formed in accordance with Section 10 of ANSI N510-1980.

(c) A charcoal adsorber section leak test with a gaseous halogenated hydrocarbon ref rigerant shall be performed in accordance with Section 12 of ANSI N510-1980.

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2) Verifying, within 31 days after removal, that a laboratory analysis of a representative carben sample obtained in accor-dance with Section 13 of ANSI N510-1980, meets the laboratory /""!

testing criteria of greater than or equal to Nwhen tested b' with methyl iodide at 30*C and relative humidity; and 3)

$ 5]

Verifying a system flow rate of 5000 cfm 2 10% during system operation when tested in accordance with Section 8 of ANSI N510-1980,

c. After every 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> of charcoal adsorber operation by verifying, within 31 days af ter removal, that a laboratory analysis of a repre-sentative carbon sample obtained in accordance with Section 13 of ANSI H510-1980 meets the laboratory testing criteria of greater than e or equal to when tested with methyl iodide at 30*C and relative humidity. 9 y g y,
d. At least once per 18 months by:
1) Verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is less than 6 inches Water Gauge while operating the system at a flow rate of 5000 cfm i 10%, ,
2) Verifying that on a High Radiation test signal, the system automatically starts (unless already operating) and directs its exhaust flow through the HEPA filters and charcoal adsorber banks, ,

V0GTLE UNITS - 1 & 2 3/4 9-15 A

.. REFUELING OPERATIONS SURVEILLANCE REQUIREMENTS (Continued) 3)

Verifying that the system maintains the spent fuel storage pool area et a slightly negative pressure relative O the outside_ _ _

atmosphere during system operation, and 4) 4 gfyf up og {gg Verifying that the heaters dissipate-20 . 2 LU when tested in accordance with Section 14 of ANSI N510-1980.

e.

Af ter each complete or partial repiecement of a HEPA filter bank, by verifying that the HEPA filter bank.s remove greater than or equal to ANSI of 99% H510-1980 of the DOP when tested in place in accordance with Section 10 cfm i 10%. while operating the system at a flow rate of 5000 f.

After each complete or partial replacement of a charcoal adsorber bank, by verifying that the charcoal absorbers remove greater than or equal to 99% of a halogenated hydrocarbon refrigerant test gas

, when they are tested in place in accordance with Section 12 of ANSI N510-1980 while operating the system at a flow rate of 5000 cfm i 10%.

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V0GTLE UNil5 - 1 & 2 3/4 9-16 A

_ _ - _ _ _ _ _ _ _ _ _ _ _ - _ - - - - - - - - - - - - - _ _ _ __-_ - - - - ~ ~ ~

Hootors aro providad to

'. onsuro that tho relativo PLANT SYSTEMS humidity of the Oirstrocm entering the adsorbers doeC BASES not exceed 70 percent.

p Verification of heater (Powerdissipation(KW) for C yA,.7,4  ;

surveillance testing is -

CONTROL ROOM EMERGENCY FILTRATION SYSTEM (Continued) moisture on the adsorbers and HEPA filters. The OPERABILITY of this system in conjunction with control room design provisions is based on limiting the radia-tion exposure body, to personnel occupying the control room to S rems or less whole or its equivalent. This limitation is consistent with the requirements of General Design Criterion 15 of Appendix A,10 CFR Part 50. ANSI N510-1980 will be used as a procedural guide for surveillance testing.

3/4.7.7 PIPING PENETRATION AREA FILTRATION AND EXHAUST SYSTEM The OPERABILITY of the Piping Penetration Area Filtration and Exhaust System ensures that radioactive materials leaking f rom the containment mechani- .

cal penetration rooms and ECCS equipment within the pump room following a LOCA are filtered prior to reaching the environment. Operation of the system with the heater control circuit energized for t.t least 10 continuous hours in =

31* day period is sufficient to reduce the buildup of moisture on the adsorbers and HEPA filters.4 The operation of this system and the resultant effect on ANSI N510-1980

{will be used as a procedural guide for surveillance testing.offsite dosa

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Heaters are not required 5 y

Iber testing is based cn ,

for controlling the / ( icdide persation, and safety (

relative humidity of the W ysis M M h M on \

airstream through the f efficiency used for dose analyses is adsorbers following a / based cn no binnidity wiwls (i.e. inside contairiment) otosistent nf heat r a 2.

the dose analyses. Iloweve r , _ _

the heaters are availeMe during accident conditsens

/ as defense-in-depth.

Verification of heater power dissipation (KW) for surveillance testing is referenced to 460 volts.

V0GTLE UNITS - 1 & 2 B 3/4 7-4

. I

,' REFUELING OPERATIONS BASES I 3/4.9.9 CONTAI MENT VENTILATION ISOLATION SYSTEM The OPERABILITY of this system ensures that the containment vent and purge penetrations will be automatically isolated upon detection of high radiation levels within the containment. The OPERABILITY of this system is l j

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 POO 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 the assumptions of the safety analysis.

3/4.9.12 FUEL HANDLING BUILDING POST ACCIDENT VENTILATION SYSTEM The operability requirements on the Fuel Handling Building Post-Accident 4- Ventilation Systems are intended to ensure that this equipment will be available in the event that a fuel handling accident results in the release of radioactive material from an irradiated fuel assembly. Although no credit is taken for the operation of this equipment in the safety analyses, its availability will serve as defense-in-depth in.the event of a fuel handling accident in the fuel handling building. ANSI N510-1980 will be used as a procedural guide for surveillancetesting.4 k

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Verification of heater power dissipation (KW) for surveillance testing is referenced to 460 volts.

l l

V0GTLE UNITS - 1 & 2 - B 3/4 9-3 A

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PLANT SYSTEMS SURVEILLANCE RE0VIREMENTS (Continued)

3) Verifying that the system maintains the control room at a positive pressure of greator than or equal to 1/8 inch Water Gauge at less than or equal to a pressurization flow of 1500 cfm relative io adjacent areas during system operation and
4) Verifying that the heaters dissipate a minimum of 95 kW when l tested in accordance with Section 14 of ANSI N510-1980;
f. After each complete or partial replacement of a HEPA filter bank, by verifying that the HEPA filter banks remove greater than or equal to 99.95% of the DOP when they are tested in place in accordance with Section 10 of ANSI H510-1980 while operating the system at a flow rate of 19,000 cfm i 10%; and
g. After each complete or partial replacement of a charcoal adsorber bank, by verifying that the charcoal absorbers remove greater than or equal to 99.95% of a halogenated hydrocarbon refrigerant test gas when tested in-place in accordance with Section 12 of ANSI N510-1980 while operating the system at a flow rate of 19,000 cfm i 10%.

l V0GTLE UNITS - 1 & 2 3/4 7-16

i 9 4 Q s klANTSYSTEMS 3/4.7.7 PIPING PENETRATION AREA FILTRATION AND EXHAUST SYSTEM SURVEILLANCE RE0VIREMENTS (Continued) l

2) Verifying within 31 days after removal that a laboratory analysis l of a representative carbon sample obtained in accordance with l Section 13 of ANSI N510-1980 meets the laboratory testing cri- 1 terion of greater than or equal to 90.0% when tested with methyl iodide at 30*C and 95% relative humidity.
3) Verifying a system flow rate of 15,500 cfm 10% during system operation when tested in accordance with Section 8 of ANSI N510-1980.
c. After every 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> of charcoal adsorber operation, by verifying, within 31 days after removal, that a laboratory analysis of a repre-sentative carbon sample obtained in accordance with Section 13 of ANSI H510-1980 meets the laboratory testing criteria of greater than or equal to 90.0% when tested with methyl iodide at 30*C and 95% l relative humidity;
d. At least once per 18 months by:
1) Verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is less than 6 inches Water Gauge while operating the system at a flow rate of 15,500 cfm i 10%.
2) Verifying that the system starts on a Containment Ventilation Isolation test signal,
3) Verifying that the system maintains the Piping Penetration Fil-tration Exhaust Unit Room at a negative pressure of greater than or equal to 1/4 inch Water Cauge relative to the outside atmosphere (PDI-2550, PDI-2551), and
4) Verifying that the heaters dissipate a minimum of 65 kW when tested in accordance with Section 14 of ANSI N510-1980,
e. After each complete or partial replacement of a HEPA filter bank by verifying that the HEPA filter banks remove greater than or equal to 99.95% of the D0P when they are tested in-place in accordance with Section 10 of ANSI N510-1980 while operating the system at a flow rate of 15,500 cfm i 10%.

V0GTLE UNITS - 1 & 2 3/4 7-18

.. .a REFUELING OPERATIONS SURVEILLANCE RE0VIREMENTS (Continued)

1) Verifying that the cleanup system satisfies the in-place testing acceptance criteria of greater than or equal to 99.0% filter retention while operating the system at a flow rate of 5000 cfr..

i 10%, (F1-12551, F1-12552) and performing the following tests; (a) A visual inspection of the Fuel Handling Building Post Accident Ventilation System shall be made before each DOP test or activated carbon adsorber section leak test in accordance with Section 5 of ANSI N510-1980.

(b) An in-place 00P test for the HEPA filters shall be per-formed in accordance with Section 10 of ANSI N510-1980. ,

(c) A charcoal adsorber section leak test with a gaseous haloger ated hydrocarbon refrigerant shall be performed in accordance with Section 12 of ANSI N510-1980.

2) Verifying, within 31 days after removal, that a laboratory analysis of a representative carbon sample obtained in accor-dance with Section 13 of ANSI N510-1980, meets the laboratory testing criteria of greater than or equal to 90.0% when tested with methyl iodide at 30'C and 95% relative humidity; and
3) Verifying a system flow rate of 5dOO cfm i 10% during system operation when tested in accordance with Section 8 of ANSI N510-1980,
c. After every 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> of charcoal adsorber operation by verifying, within 31 days after removal, that a laboratory analysis of a repre-sentative carbon sample obtained in accordance with Section 13 of ANSI N510-1980 meets the laboratory testing criteria of greater than or equal to 90.0% when tested with methyl iodide at 30 C and 95% l relative humidity.
d. At least once per 18 months by:
1) Verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is less than 6 inches Water Gauge-while operating the system at a flow rate of 5000 cfm 10%,
2) Verifying that on a High Radiation test signal, the system automatically starts (unless already operating) and directs its exhaust flow through the HEPA filters and charcoal adsorber banks, V0GTLE UNITS - 1 & 2 3/4 9-15

.. r. ,

REFUEllNG OPERATIONS SURVEILLANCE RE0VIREMENTS (Continued)

3) Verifying that the system maintains the spent fuel storage pool area at a slightly negative pressure relative to the outside atmosphere during system operation, and
4) Verifying that the heaters dissipate a minimum of 16 kW when tested in accordance with Section 14 of ANSI N510-1980.
e. After each complete or partial replacement of a HEPA filter bank, by verifying that the HEPA filter banks remove greater than or equal to 99% of the DOP when tested in-place in accordance with Section 10 of ANSI N510-1980 while operating the system at a flow rate of 5000 cfm i 10%.
f. After each complete or partial replacement of a charcoal adsorber bank, by verifying that the charcoal absorbers remove greater than or equal to 99% of a halogenated hydrocarbon refrigerant test gas when they are tested in-place in accordance with Section 12 of ANSI N510-1980 while operating the system at a flow rate of 5000 cfm 10%.

V0GTLE UNilS - 1 & 2 3/4 9-16

..f.,

PLANT SYSTEMS BASES 3/4.7.6 CONTROL ROOM EMERGENCY FILTRATION SYSTEM (Continued) l moisture on the adsorbers and HEPA filters. The OPERABILITY of this system in conjunction with control room design provisions is based on limiting the radia-tion exposure to personnel 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 N510-1980 will be used as a procedural guide for surveillance testing. Heaters are provided -

to ensure that the relative humidity of the airstream entering the adsorbers does not exceed 70%. Verification of heater power dissipation (kW) for surveillance testing is referenced to 460 volts.

3/4.7.7 PIPING PENETRATION AREA FILTRATION AND EXHAUST SYSTEM The OPERABILITY of the Piping Penetration Area Filtration and Exhaust System ensures that radioactive materials leaking from the contaWut mechani-cal penetration rooms and ECCS equipment within the pump room fo~, sowing a LOCA are filtered prior to reaching the environment. Operation of the system with the heater control circuit energized for at least 10 continuous hours in a 31-day period is sufficient to reduce the buildup of moisture on the adsorbers and HEPA filter:. Heaters are not required for controlling the relative humidity of the airstreart, through the adsorbers following a LOCA since no credit is taken for heaters in the dose analyses. However, the heaters are available during accident conditions as defense-in-depth. Verification of heater power dissipa-tion (kW) for surveillance testing is referenced to 460 volts. The operation of this system and the resultant effect on offsite dosage calculations was assumed in the safety analyses. Adsorber testing is based on methyl iodide penetration, and safety analysis credited decontamination efficiency used for dose analyses -

is based on no humidity controls (i.e., inside containment) consistent with Regulatory Guide 1.52. ANSI N510-1980 will be used as a procedural guide for surveillance testing.

V0GTLE UNITS - 1 & 2 B 3/4 7-4

f. ,

i REFUEllNG OPERATIONS BASES 3/4.9.9 CONTAINMENT VENTILATION ISOLATION SYSTEM The OPERABillTY of this system ansures that the containment vent and purge penetrations will be automatically isolated upon detection of high radiation 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 P0OL 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 the assumptions of the safety analysis.

3/4.9.12 FUEL HANDLING BUILDING POST ACCIDENT VENTILATION SYSTEMS The operability requirements on the Fuel Handling Building Post-Accident Ventilation Systems are intended to ensure that this equipment will be available in the event that a fuel handling accident results in the release of radioactive material from an irradiated fuel assembly. Although no credit is taken for the operation of this equipment in the safety analyses, its availability will serve as defense-in-depth in the event of a fuel handling accident in the fuel handling building. ANSI N510-1980 will be used as a procedural guide for surveillance testing. Verification of heater power dissipation (kW) for surveillance testi g n is referenced to 460 volts.

i V0GTLE UNITS - 1 & 2 8 3/4 9-J )

l l

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