ML20052A599
| ML20052A599 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/21/1982 |
| From: | GENERAL PUBLIC UTILITIES CORP. |
| To: | |
| Shared Package | |
| ML20052A588 | List: |
| References | |
| NUDOCS 8204280493 | |
| Download: ML20052A599 (4) | |
Text
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SURVEILLANCE REQUIREMENTS 4.7.6.1.3 A Special Report shall be prepared and submitted to the Commission within 10 days if evidence of degradation is noted during an inspection. This report shall describe the extent and nature of.the degradation and the plans and schedule for restoring the dike and errosion protection to a status equiva-1ent to the original design provisions.
4.7.7 CONTROL ROOM EMERGENCY AIR CLEANUP SYSTEM 4.7.7.1 The control room emergency air cleanup system shall be demonstrated OPERA 8LE:
a.
At least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> by verifying that the control room air temperature is less than or equal to 100*F.
b.
At least once per 31 days by initiating, from the control room, flow through the HEPA filters and charcoal adsorbers and verifying that the system operates for at least 15 minutes; and the pressure drop across the combined HEPA filters and charcoal adsorber bar.ks is less than six (6) inches water gage while operating.
c.
At least once per 18 months or (1) after any structural maintenance on the HEPA filter or charcoal adsorber housings, or (2) following significant painting, fire or chemical releases in any ventilation l
zone communicating with the system by:
1.
Verifying that the cleanup system satisfies the in-place testing acceptance criteria and uses the test procedures of Regulatory Positions C.5.a C.5.ca and C.S.d* of Regulatory Guide 1.52, Revision 2, March 1978, and the system flow rate is 14,350 cfm
+ 10%.
2.
Verifying within 31 days after removal that a laboratory analysts s
of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978, when performing Methy Iodine, 30*c, 95% RH testing per table 5-1 of ANSI N509 - 1980 meets an acceptance criteria of 5% penetration maximum.
3.
Verifying a system flow rate of 14,350 cfm + 10% during system operation when tested in accordance with AN31 N510-1975 Section 8.3.1 Paragraph 3 and 4.
d.
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 varifying 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, when performing Methy Iodine, 30*c. 95% RH testing per table 5-1 of ANSI N509 - 1980 meets an acceptance criteria of 5% penetration maximum.
l "The prerequisites of Section 10.3 and 12.3 of ANSI-N510-1975 do not apply.
THREE MILE ISLAND - UNIT 2 4.7-4 8204280493
SURVEILLANCE REQUIREMENT $'
CONTROL ROOM EMERGENCY AIR CLEANUP SYSTEM (Continued) e.
At least once per 18 months by:
1.
Verifying that the pressure drop across the combined HEPA filter and charcoal adsorber banks is less than 6 inches Water Guage while operating the system at a flow rate of 14.350 cfm :
10%.
2.
Verifying that on a control room air inlet radiation test signal or chlorine detection test signal, the system automat-ically switches into a recirculation mode of operation with flow through the HEPA filters and charcoal adsorber banks.
3.
Verifying that the* system maintains the control room at a positive pressure of greater than or equal to 1/10 inch W.G.
relative to the outside atmosphera during system operation.
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 ANSI N510-1975
- Section 10 while operating the system at a flow rate of 14.350 cfm ! 10%.
g.
After each complete or partial replacement of a charcoal adsorber i
bank by verifying that the charcoal adsorbers remove greater than or equal to 99.95% of a halogenated hydrocarbon refrigerant test gas when l
they are tested in place in accordance with ANSI N510-1975* Section l
12 while operating the system at a flow rate of 14.350 cfm ! 10%.
t l
l l
- The prerequisites of Section 10.3 and 12.3 of ANSI-N510-1975 do not apply.
THREE MILE ISLAND - UNIT 2 4.7-5 0
.~
SURVEILLANCE REQUIREMENTS 4.9 LIQUID RADWASTE STORAGE FUEL HANDLING BUILDING / AUXILIARY BUILDING AIR CLEANUP SYSTEMS 4.9.12 The Fuel Handling Building and Auxiliary Building Air Cleanup Exhaust Systems shall be demonstrated OPERABLE:
a.
At least once per 31 days by verifying that the ventilation exhaust systems in their normal operating mode meet the following conditions:
1.
Exhaust Flow Rate: With two filter trains and two exhaust fans in operation in the respective building flow rate shall be within the following operating band:
FUEL HANDLING BUILDING 36,000 cfm to 54,000 cfm AUXILIARY BUILDING 54,000 cfm to 80,000 cfm 2.
Filter Pressure Drop: While operating within the flow rate specified in 4.9.12.a.1 above, the d/p across the combined HEPA filters and charcoal adsorbers shall not exceed 6-inches water gage.
3.
Building Pressure: Demonstrate that the systems are capable of increasing negative pressure within their respective building to equal to or greater than 1/8 inch water gage with respect to atmospheric.
It may be necessary to close doors and other building openings to achieve the required value.
b.
At least once per 18 months by verifying that the ventilation I
systems meet the following conditions:
1.
Visually inspect aach filter train and asociated components l
in accordance with Section 5 of ANSI N510-1975, as required by Regulatory Position C.5.2 of Regulatory Guide 1.52, Revision 2, March 1978. The inspection should be performed prior to the flow and DOP tests of this section.
2.
Flow Test:
Exhaust flow rate shall be within the below specified band for each filter train with one filter train and one exhaust fan of the respective building operating.
l Testing shall be in accordance with ANSI N510-1975, Section 8.3.1 Paragraphs 3 and 4.
FUEL HANDLING BUILDING 18,000 cfm to 27,000 cfm AUXILIARY BUILDING 27,000 cfm to 40,000 cfm l
THREE MILE ISLAND UNIT 2 4.9-1
SURVEILLANCE REQUIREMENTS 3.
DOP Test:
Each filter train shall be tested in accordance with Section 10 of ANSI N510-1975, as required by Regulatory Position C.S.c of Regulatory Guide 1.52, Revision 2, March 1978.
Flow through the filter train being tested shall be as prescribed for the flow test in Section 4.9.12.b.2 above.
NOTE:
Installed system flow instrumentation is adequate for; this test.
4.
Building Pressure: Demonstrate that the systems are capable of increasing negative pressure within their respective building to equal to or greater than 1/8 inch water gage with respect to atmospheric.
It may be necessary to close doors and other building openings to achieve the required value. A test instrument, such as an inclined manometer or equivalent, shall be used in the performance of this test.
c.
After structural maintenance of the HEPA filter or charcoal adsorber housings, or following fire or chemical release in any ventilation zone communicating with the system by verifying that the ventilation systems meet the following conditions:
1.
Flow Test: Reverify exhaust flow rate for the affected filter train (s) in the affected building (system) per Section 4.9.12.b.2.
2.
Filter Pressure Drop: Reverify the filter pressure drop surveillance prescribed in Section 4.9.12.a.2 for the filter train (s) in the affected building (system).
3.
DOP Test: Each affected filter train shall be retested in accordance with Section 4.9.12.b.3.
d.
After each complete or partial replacement of a HEPA filter bank by verifying that the ventilation systems meet the following conditions:
1.
DOP Test:
Each affected filter train shall be restested in accordance with Section 4.9.12.b.3.
NOTE:
Supply fans may be operated as desired except that the number of operating supply fans shall not exceed the number of operating exhaust fans in each building.
THREE MILE ISLAND UNIT 2 4.9-2