NLS8500221, Application for Amend to License DPR-46,changing Tech Specs to Verify Halon Content by Using factory-installed Dipstick Arrangement for Each Tank & to Perform Visual & Tactile Insp of Nozzles as Alternative to Puff Test: Difference between revisions
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GENER AL OFFICE Nebraska Public Power District | GENER AL OFFICE Nebraska Public Power District | ||
*""Eso"O #*RM""""" | |||
NLS8500221 August 21, 1985 Office of Nuclear Reactor Regulation Operating Reactors Branch No. 2 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Attention: | -. _ =_= _ - -. - | ||
NLS8500221 August 21, 1985 Office of Nuclear Reactor Regulation Operating Reactors Branch No. 2 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Attention: | |||
Mr. Domenic B. Vassallo, Chief | |||
==Dear Mr. Vassallo:== | ==Dear Mr. Vassallo:== | ||
==Subject:== | ==Subject:== | ||
Revision to Proposed Change No. 22 to Technical Specifications IIalon Fire Suppression System Cooper Nuclear Station NRC Docket No. 50-298, DPR-46 In accordance with the applicable provisions specified in 10CFR50, Nebraska Public Power District submitted Proposed Change No. 22 to the Technical Specifications for review and approval. Ilowever, installation and layout of the IIalon system has revealed the need to eliminate the proposed requirement that the storage tanks be periodically weighed to verify IIalon content. It is the District's belief that the breaking and uniting of joints required to allow weighing of the tanks, combined with the restricted quarters present to perform this task, will be detrimental to the system's piping integrity and its ability to perform its intended function. As an alternative', the District proposes to verify llalon content by the measurement of flalon level in the tank using the factory installed dipstick arrangement for each tank. The proposed requirement to conduct a " Puff Test" to verify no blockage in the discharge nozzles will also necessitate breaking the mechanical integrity of the system, hence compromising system operability as described above. The District proposes to perform a visual and tactile inspection of the nozzles, as an equivalent alternative to protect the functionality of the system. Accordingly, three revised proposed Technical Specification pages are enclosed. | Revision to Proposed Change No. 22 to Technical Specifications IIalon Fire Suppression System Cooper Nuclear Station NRC Docket No. 50-298, DPR-46 In accordance with the applicable provisions specified in 10CFR50, Nebraska Public Power District submitted Proposed Change No. 22 to the Technical Specifications for review and approval. | ||
The llalon 1301 system was functionally tested and discharged on May 3,1985, with satisfactory results. | Ilowever, installation and layout of the IIalon system has revealed the need to eliminate the proposed requirement that the storage tanks be periodically weighed to verify IIalon content. | ||
8508290236 050821 yDR | It is the District's belief that the breaking and uniting of joints required to allow weighing of the tanks, combined with the restricted quarters present to perform this task, will be detrimental to the system's piping integrity and its ability to perform its intended function. | ||
As an alternative', the District proposes to verify llalon content by the measurement of flalon level in the tank using the factory installed dipstick arrangement for each tank. | |||
The proposed requirement to conduct a " Puff Test" to verify no blockage in the discharge nozzles will also necessitate breaking the mechanical integrity of the system, hence compromising system operability as described above. | |||
The District proposes to perform a visual and tactile inspection of the nozzles, as an equivalent alternative to protect the functionality of the system. | |||
Accordingly, three revised proposed Technical Specification pages are enclosed. | |||
The llalon 1301 system was functionally tested and discharged on May 3,1985, with satisfactory results. | |||
The test was conducted in conformance with the standard test criteria prescribed by the National Fire Protection Association (NFPA) Code 12A regarding Total Flooding Areas. | |||
8508290236 050821 yDR ADOCK 05000298 d00l PDR I3 Wo | |||
Mr. Dom:nic B. Vcs: allo Page 2 August 21, 1985 In addition to three signed originals, 40 copies are submitted for your use. | Mr. Dom:nic B. Vcs: allo Page 2 August 21, 1985 In addition to three signed originals, 40 copies are submitted for your use. | ||
Sincerely, 4th Jay M. Pflant Technical Staff Manager Nuclear Power Group JMP/grs:emz21/4 Enclosure cc: | Sincerely, 4th Jay M. Pflant Technical Staff Manager Nuclear Power Group JMP/grs:emz21/4 Enclosure cc: | ||
H. R. Borchert Department of Health State of Nebraska i | |||
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Latest revision as of 04:12, 12 December 2024
| ML20134J291 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 08/21/1985 |
| From: | Pilant J NEBRASKA PUBLIC POWER DISTRICT |
| To: | Vassallo D Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20134J292 | List: |
| References | |
| NLS8500221, NUDOCS 8508290236 | |
| Download: ML20134J291 (2) | |
Text
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GENER AL OFFICE Nebraska Public Power District
- ""Eso"O #*RM"""""
-. _ =_= _ - -. -
NLS8500221 August 21, 1985 Office of Nuclear Reactor Regulation Operating Reactors Branch No. 2 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Attention:
Mr. Domenic B. Vassallo, Chief
Dear Mr. Vassallo:
Subject:
Revision to Proposed Change No. 22 to Technical Specifications IIalon Fire Suppression System Cooper Nuclear Station NRC Docket No. 50-298, DPR-46 In accordance with the applicable provisions specified in 10CFR50, Nebraska Public Power District submitted Proposed Change No. 22 to the Technical Specifications for review and approval.
Ilowever, installation and layout of the IIalon system has revealed the need to eliminate the proposed requirement that the storage tanks be periodically weighed to verify IIalon content.
It is the District's belief that the breaking and uniting of joints required to allow weighing of the tanks, combined with the restricted quarters present to perform this task, will be detrimental to the system's piping integrity and its ability to perform its intended function.
As an alternative', the District proposes to verify llalon content by the measurement of flalon level in the tank using the factory installed dipstick arrangement for each tank.
The proposed requirement to conduct a " Puff Test" to verify no blockage in the discharge nozzles will also necessitate breaking the mechanical integrity of the system, hence compromising system operability as described above.
The District proposes to perform a visual and tactile inspection of the nozzles, as an equivalent alternative to protect the functionality of the system.
Accordingly, three revised proposed Technical Specification pages are enclosed.
The llalon 1301 system was functionally tested and discharged on May 3,1985, with satisfactory results.
The test was conducted in conformance with the standard test criteria prescribed by the National Fire Protection Association (NFPA) Code 12A regarding Total Flooding Areas.
8508290236 050821 yDR ADOCK 05000298 d00l PDR I3 Wo
Mr. Dom:nic B. Vcs: allo Page 2 August 21, 1985 In addition to three signed originals, 40 copies are submitted for your use.
Sincerely, 4th Jay M. Pflant Technical Staff Manager Nuclear Power Group JMP/grs:emz21/4 Enclosure cc:
H. R. Borchert Department of Health State of Nebraska i
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