ML20070G891
| ML20070G891 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 03/04/1991 |
| From: | ENTERGY OPERATIONS, INC. |
| To: | |
| Shared Package | |
| ML20070G889 | List: |
| References | |
| NUDOCS 9103130053 | |
| Download: ML20070G891 (1) | |
Text
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4.25 Reactor Building Purge Filtration System Applicability Applies to the surveillance of the reactor building purge filtration system.
Objective To verify an acceptable level of efficiency and operability of the reactor building purge filtration system.
Soncification 4.25.1 The pressure drop across the combined ilEPA filters and charcoal adsorber banks shall be demonstrated to be less than 6 inches of water at system design flow rate (110%) within 720 system operating hours prior to initial irradiated fuel handling operattons.
4.25.2 Initially and after any maintenance or testing the: could affect the air distribution within the reactor building purge system, air distribution shall be demonstrated to be uniform within 120%
across llEPA filters and charcoal adsorbers.
4.25.3a.
The tests and sample analysis of Specification 3.22.1.a, b, &
c.
shall be performed within 720 system operating hours prior to initial irradiated fuel handling operations in the reactor building, and prior to irradiated fuel handling in the reactor building followin;; significant painting, fire or chemical release in any ventilation zone communicating with the system.
?
b.
Cold DOP testing shall also be performed prior to irradiated fuel handling in the reactor building after each complete or partial replacement of a llEPA filter bank or af ter any structural maintenance on the system housing, c.
llalogenated hydrocarbon testing shall also be performed prior to irradiated fuel handling in the reactor building af ter each complete or partial replacement of a chercoal adsorber bank or after any structural maintenance cu the
- v. tem housing.
)
j}as es l
Pressure drop across the combined llEPA filters and charcoal adsorbers of less than 6 inches of water at the system design flow rate will indicate that the filters and adsorbers are not clogged by excessive amounts of foreign matter.
Pressure drop should be determined at least once per refueling period to show system performance capability.
Amendment No. fA 110x 9103:30053 y103o4
,DR ADOCK 03000313 PDR
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