ML20096B273
| ML20096B273 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 08/27/1984 |
| From: | Kemper J PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| References | |
| OL, NUDOCS 8409040069 | |
| Download: ML20096B273 (6) | |
Text
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PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET P.O. BOX 8699 PHILADELPHIA. PA.19101 (215)841 45o2 VIC E#R ESID E NT to sammansnes Aeso massances Mr. A. Schwencer, Chief Licensing Branch No. 2 g g7 g U.S. Nuclear Regulatory Ccnmission Washington, D.C.
20555
SUBJECT:
Limerick Generating Station Docket Nos. 50-352 and 50-353 HVAC Filter In Place Testing Criteria
REFERENCE:
PECo and NRC Telecon dated 8/21/84 FILE:
GOVT 1-1 (NRC)
Dear Mr. Schwencer:
As discussed with Charles Nichols of the Meteorology and Effluent Treatment Branch in the reference conference call, we are proceeding to perform the HVAC filter "In Place Testing" in accordance with ANSI /ASME 510-1980.
NRC Regulatory Guides 1.52 and 1.140 endorses HVAC filter In Place Testing to be performed in accorc'ance with ANSI N510-1975.
However, the updated and inproved testing methodology and clarifications found in ANSI /ASME 510-1980 provide for inprove-ments in areas where experience has shown the 1975 version to be cuTherseme.
We, therefore, Intend to take the exception to Regulatory Guides 1.52 and 1.140 and modify FSAR Tables 6.5-2, 9.4-4 and 9.4-18.
accordingly.
The attached draft FSAR page changes will be incorporated in the FSAR, exactly as they appear in the attachments, in the revision
{
scheduled for Septenber,1984.
I Sincerely, i
IM RJS/dg/08228401 Copy to: (See Attached Service List) 8409040069 840827 I
PDR ADOCK 05000352 A
m_
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1 i
cc:. Judge Lawrence Bremer -
(w/ enclosure) dudge Peter. A. terris (w/ enclosure)
'dudge Richard F.' Cole.
(w/ enclosure)
Troy B. Comer,' dr., Esq.
(w/ enclosure)
-Ann P. Hodgdon, Esq.
(w/ enclosure)
Mr.. Frank R. Romano (w/ enclosure)
Mr.' Robert L.~ Anthony (w/ enclosure)
- Maureen POlligan
-(w/ enclosure)
Charles W. Elliot, Esq.
(w/ enclosure)
Zori G. Ferkin,'Esq.
(w/ enclosure)
Mr. Thomas Gerusky (w/ enclosure)
Director, Penna. Emergency (w/ enclosure)
Management Agency Angus R. Love, Esq.
(w/ enclosure)
David Wersan, Esq.
(w/ enclosure)
Robert J. Sugarman, Esq.
(w/ enclosure)
Martha W. Bush, Esq.
(w/ enclosure)
Spence W. Perry, Esq.
(w/ enclosure) day M. Gutlerrez, Esq.
(w/ enclosure)
Atomic Safety & Licensing (w/ enclosure)
Appeal Board Atomic Safety & Licensing (w/ enclosure)
Board Panei Docket & Service Section (w/ enclosure)
Mr. James Wiggins (w/ enclosure)
Mr. Timothy R.-S. Campbell (w/ enclosure) i
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TARIA 6.5-2 (oxeteda (mees 7 of 71
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- The Limerict air filter systema neere designed befodesign detalle have been ottadise in ac r 5 ta a Eacts original or replacement hetdt of lsatisfactorily althoeurh the design is not in strict conformancthe regulatory gentificatiam and batch test roamita of ANSI sr509-1940 e es&th the requietory andde.
er performe in the SGTB doct from the refuellag area will be imetail dThe pret11 tars in the
<st meets the urine zwector encioomae isolation.
the requiresnests of megulatoIT Geide 1.52 1
Its som111tara 8
prior to the first re e
wi a m ame mLit ccaterm to e
p -M -~ v a
v W-(4)TO ANSEfASME NS/O-l980 fx-I l
TEST /NG CMTERIA.
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t TABLE 9.4-4 (Cont'd)
(Page 3 of 7) e Filters are subjected to acceptance tests made by an NRC quality assurance station.
The filter efficiency exceeds 99.97% when tested with monodispersed, thermally-generated DOP aerosol having a mean particle size of 0.3 micron.
Filters selected at random from the manufacturer's production line are subjected to moisture, overpressure resistance, and filter dust loading tests in order to initially qualify the filters.
The moisture and overpressure resistance tests are performed in accordance with MIL-F-51068.
Each filter is individually tested by the appropriate NRC quality assurance station at 100% and 20% of the rated capacity.
b.
Preoperational Tests for Acceptance (Performed in Filter 3
Train Housing)
Visual and dimensional checks of the housing and mounting frames are made in the field to check for conformance with design specifications.
Nonconforming items are rejected and replaced with acceptable equipment.
I After installation, inplace tes nfo HEPA filter ij> ANSI /ASNE efficiency is conducted in accordanc with Section 10 of NS/O /9gg
^551 N000 ;070 (formerly ANSI ;;;01.1.070).
The tests are conducted at the rated airflow, using the DOP aerosol test equipment, test procedures, and test reports specified in -ANOI N";;0 10"0.
The overall filtration efficiency is not less than 99.95%.
When t
leaks exist that would result in inability to meet the specified system parameters, they re located and repaired by welding.
The system is then tested'again to ensure conformance with acceptance criteri 8.
CARBON ADSORBERS MNS/ NE NS/O-/960 Carbon adsorbers are tested as follows:
a.
Qualification Tests Before Installation 1.
Representative samples, taken from each original or replacement batch of activated carbon used for filling the adsorbers, are tested to meet the qualificiation and batch test results summarized in ANSI N509-1980, table 5.1 for ESF systems, and Rev. 16, 01/83
-- - - - ~" - - ------~~ ~ ~~
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4 TABLE 9.4-1B (Cont 'd)
ItGOLATORT GUIDE (Page 3 of 3)
.__ E951 U96...--
M M Hgist Para C.e - staintenance
,,,,sg{g{,al REACTCait,j _
_ R&!_ta g g(as. _ _
C a.a Conform Conform C.t.b Conform Con form Conform Conform Due to space (A) The system is restrictione, distance between rated at 330 cfm filter banks le and the physicalle less than sanall housing eecommended design provides easy acceea eo the filters for C.t.c sereicing Con form (B) Same as Reactor Cbnform C.4.4 Conform Conform Conform Conform Pero C.5 - In-Place Testing Conform Comform Criteria Conform (3)
Confo Conform (3)
(A) Conform (8) Does not Para C.6 - Laboratory Tenting contain (3)
Ccm form charcoal filter Criteria for Activated Cont' arm Carbon Con form (h) Conform (B) Does not contain charcoal filter 888 the guide was not specifically considered in the designThe Limerick design was complete $ pr.ior s guide, and therefore
(** Tur bine Turbine enciosure equipment compartment SCTS Standby qas treatment room exhaust air filter plenumexhaust air fiiter plenum R3cct or Reactor enclosure equipment compartment Redweste - (4) sadwaste enclosure common tanks eent exhaust air filter plenum (B) filter assembly Badweste Enclosure Equipment Compa rt ment Exhatist Filter Assead>1e.
(3) TC ANSIfASME NSIO-198O TESTING CR/TERIA 1
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