ML20094H045
| ML20094H045 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom, Limerick  |
| Issue date: | 11/06/1995 |
| From: | Hunger G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20094H046 | List: |
| References | |
| GL-92-08, GL-92-8, NUDOCS 9511130308 | |
| Download: ML20094H045 (3) | |
Text
Ctition Supp rt Depertmsnt GL 9248 10 CFR 50.54(f) l
~
PECO ENERGY etw ~ ~ ~
Nuclear Group Headquartors 9 5 Chesterbrook Boulevard Wayne, PA 19087-5691 November 6,1995 Docket clos. 50-277 50-278 50-352 50-353 i
License Nos. DPR-44 DPR-56 i
NPF-39 NPF-85 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555
Subject:
Peach Bottom Atomic Power Station, Units 2 and 3, Limerick Generating Station, Units 1 and 2, Request for Additional Information Regarding Generic Letter 9248, "Thermo4ag 330-1 Fire Barriers"
References:
1)
Letter from G. A. Hunger, Jr. to USNRC Document Control Desk dated April 16,1993 2)
Letter from G. A. Hunger, Jr. to USNRC Document Control Desk dated December 29,1993 3)
Letter from G. A. Hunger, Jr. to USNRC Document Control Desk dated February 4,1994 i
4)
Letter from G. A. Hunger, Jr. to USNRC Document Control Desk dated December 19,1994 5)
Letter from G. A. Hunger, Jr. to USNRC Document Control Desk dated March 29,1995 6)
Letter from G. A. Hunger, Jr. to USNRC Document Control Desk dated August 2,1995
Dear Sirs:
The subject request for additional information (RAI) regarding Generic Letter (GL) 92-08, "Thermo-Lag 330-1 Fire Barriers," dated May 30,1995, requested that PECO Energy Company, (PECO Energy), respond in a timely manner with additional information regarding Thermo-Lag 330-1 fire barrier systems. PECO Energy had previously responded on April 16,1993 (reference letter 1), December 29,1993 (reference letter 2), February 4,1994 (reference letter 3), December 19,1994 (reference letter 4), and March 29,1995 (reference letter 5) to this GL in addition, PECO Energy responded (reference letter _6) that we were participating with numerous other utilities in a chemical testing program coordinated by the Nuclear Energy institute (NEI). PECO Energy contributed 21 samples of Thermo-Lag material to the program.
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951113030g 951106 PDR ADOCK 05000277 I
P-PDR
I l
, November 6,1995 Page 2 The program consisted of pyrolysis gas chromatography evaluation of 169 samples from the participating utilities to assess organic composition, and energy dispersive x-ray spectroscopy of 33 samples to assess inorganic chemical composition. The sample population consisted of materials manufactured between 1982 and 1995. On the basis of the above tests, the test laboratory, NUCON International, Inc., concluded that all samples contained the constituents t
identified by Thermal Sciences Inc., as essential to fire barrier performance. NUCON also determined that the composition of the sample population was consistent. A copy of the summary report from NUCON is to be provided to the NRC by NEl.
The PECO Energy samples were consistent with the other utility samples. The summary pages of the NUCON reports for PECO Energy samples are contained in Attachment 1. PECO Energy believes that the high degree of chemical consistency adequately demonstrates that the materials installed at PBAPS and LGS are functionally equivalent to materials tested in the l
Industry fire endurance tests. The consistent chemical test results from the broad population of l
Thermo-Lag represented also validates our position that 21 samples are sufficient. PECO Energy does not plan to conduct any additional chemical composition testing.
If you have any questions please feel free to contact us.
Very truly yours, A.a. alp.
G. A. Hunger, Jr.,
Director - Licensing Attachment cc:
T. T. Martin, Administrator, Region I, USNRC W. L Schmidt, USNRC Senior Resident inspector, PBAPS N. S. Perry, USNRC Senior Resident inspector, LGS
I COMMONWEALTH OF PENNSYLVANIA ss.
COUNTY OF CHESTER j
i Drew B. Fetters, being first duly sworn, deposes and says:
That he is Vice President of PECO Energy Company; that he has read the attached response to the Request for Additional infortnation regarding Generic Letter 92-08 for Peach Bottom Facility Operating Licenses DPR-44 and DPR-56, and Limerick Facility Operating Licenses NPF-39 and NPF-85, and knows the contents thereof; and that the statements and matters set forth therein are true and 1
correct to the best of his knowledge, Information and belief.
O 1
\\).
lA1.3-Mice President '
Subscribed and sworn to before me this /p day of
'995.
%)n N $1ary Public
- Notarlaf Seal Mary Lou Skrockl, Notary Pubfic Tredyttnn Twp., Chester County t#y Comm;ssion Expires May 17,1999
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