ML20246D666

Forwards SER Accepting Design & Installation of Nitrogen Pneumatic Sys at Plant in Response to Generic Ltr 84-09. Both Nitrogen Backup & New full-time Nitrogen Pneumatic Sys Acceptable for Use.Sys Already Installed at Unit 1

ML20246D666
Person / Time
Site:	Brunswick
Issue date:	08/18/1989
From:	Le N Office of Nuclear Reactor Regulation
To:	Eury L CAROLINA POWER & LIGHT CO.
Shared Package
ML20246D669	List: ML20246D666 ML20246D681
References
GL-84-09, GL-84-9, TAC-67500, TAC-67501, NUDOCS 8908280217
Download: ML20246D666 (4)

Text

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UNITED STATES I

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• NUCLEAR REGULATORY COMMISSIGN WASHINGTON, D. C. 20555 s i

%, .....f August 18, 1989 Docket Nos. 50-325 and 50-324 $

Mr. Lynn W. Eury Executive Vice President Power Supply Caroiina Power & Light Company l '

P. O. Fox 1551 Raleigh, North Carolina 27602

Dear Mr. Eury:

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SUBJECT:

NITROGEN PNEUMATIC SYSTEM DESIGN - BRUNSWICK STEAM ELECTRIC PLANT, .

UNITS 1 AND 2, (TAC NOS. 67500 AND 67501) I i

In response to Generic Letter (GL) 84-09, "Recombiner Capability Requirements i of 10 CFR 50.44(c)(3)(ii)," Carolina Power & Light Company (CP&L) made several submittals (dated June 8,1984, June 27,1984, March 4,1985, July 18,1985, and March 20, 1986, December 12, 1985, March 27, 1987, November 20, 1987, 4 March 10, 1968 and November 15,1986), to demonstrate that Brunswick Steam Electric Plant, Units 1 and 2 (BSEP) does not require hydrogen recombiners to control combustible gases after an accident. CP&L proposes to install a safety-grade quality nitrogen backup system for use in conjunction with a new i nitrogen pneumatic air system, as a method f or compliance with GL 84-09. I The staff has approved the installation of the nitrogen backup system and 1 the related Technical Specification amendment was issued on August 20, 1987. l by letter dated November 20, 1987, CP&L requested staff approval to replace the normal noninterruptible instrument air supply with a full-time pressurized nitrogen system to supply controlled nitrogen pressure to instruments inside containment, instead of installing additional isolation valves on the existing  ;

instrument air lines as committed to in the previous submittals. In the same 4 flovember 20, 1987 letter, CP&L requested staff approval to delay the installation schedule of the new full time nitrogen system for Unit 2.  ;

i On December 17, 1987, the NRC staff approved CP&L's request to delay the installation of the full-time nitrogen system on Unit 2 until the Cycle 8 j reload outage scheduled to begin on September 9, 1989. With this approval, l the staff also requested that CP&L provide the information related to the ,

design of the nitrogen pneumatic system prior to the start of Unit 1 Cycle 6 reload outage.

By letter dated March 10, 1988, as amended by letter dated November 15, 1988, CP&L submitted the design related information for the nitrogen pneumatic system.

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Mr. Lynn W. Eury - August 18, 1989 The staff 'has reviewed the submitted design information, system description, and piping. drawings on the nitrogen pneumatic system and finds that: (1) the design for the nitrogen pneumatic system is acceptable, and (2) that both the nitrogen backup and the new full time nitrogen pneumatic system are

' acceptable for use as a method for compliance with the GL 84-09 requirements.

- Details of the staff evaluation on the design and installation of the new nitrogen pneumatic system at BSEP are enclosed.

The staff has also noted that CP&L has completed the installation of the nitrogen pneumatic system for Unit 1, and the system is to be installed during the upcoming refueling outage for Unit 2. In addition, the schedule for compliance with GL 84-09 for Unit 2 remains the same as approved in the previous staff letter of December 17, 1987.

Sincerely, 4 .

Ngoc B. Le, Project Manager Project Directorate 11-1 Division of Reactor Projects I/II Office of Nuclear _ Reactor Regulations

Enclosure:

As stated cc w/E9rl:

See next page

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Mr. Lynn W. Eury -2 August 18, 1989 The staff has reviewed the submitted design information, system description, and piping drawings on the nitrogen pneumatic system and finds that: (1) the design for the nitrogen pneumatic system is acceptable, and (2) that both the nitrogen backup and the new full time nitrogen pneumatic system are acceptable for use as a method for compliance with the GL 84-09 requirements.

Details of the staff evaluation on the design and installation of the new nitrogen pneumatic system at BSEP are enclosed.

The staff has also noted that CP&L has completed the installation of the nitrogen pneumatic system for Unit 1, and the system is to be installed during the upt.oming refueling outage for Unit 2. In addition, the schedule for compliance with GL 84-09 for Unit 2 remains the same as approved in the previous staff letter of December 17, 1987.

Sincerely, Original Signed By:

Ngoc B. Le, Project Mauger Project Directorate 11-1 Division of Reactor Projects I/II Office of Nuclear Reactor Regulations

Enclosure:

As stated cc w/ encl:

See next page Distribution:

Docket File NRC & Local PDRs PDII-1 r/f SAVarga, 14/E/4 GClainas, 14/H/3 EGAdensam NBLe CTinkler, 8/D/1 CMcCracken, 8/H/7 PDAnderson OGC ELJordan (MNBB 3302)

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Mr. L. W. Eury - -Brunswick Steam Electric Plant. l Carolina Power & Light Company- Units 1 and 2 j CC:'

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Mr. Russell B. Starkey, Jr. Mr. H..A. Cole ,

E Project Manager Special Deputy Attorney General 1 Brunswick Nuclear Project State of North Carolina P. 0. Box 10429 P. O. Box 629 Southport, North Carolina 28461 Raleigh, North Carolina 27602 Mr.= R. E. Jones, General Counsel Mr. Robert P. Gruber  !

Carolina Power & Light Company Executive Director  !

P. O. Box 1551 Public Staff - NCUC Raleigh, North Carolina 27602 P. O. Box 29520 ,

Raleigh, North' Carolina 27626-0520' i Ms. Frankie Rabon i Board of Con 11ssioners  !

P. O. Box 24L Bolivia, North. Carolina 28422 i

Resident Inspector U._ S. Nuclear Regulatory Commission 4; ;

Star Route-1 P. O. Bcx 208 '

Southport, North Carolina 28461  !

Regional Administrator, Region II i

U. S. Nuclear Regulatory Commission )

101 Marietta Street, Suite 2900 l A' nta, Georgia 30323  !

Mr. Dayne H.. Brown, Chief .

Radiation Protection Branch l

' Division of Facility Services N. C. Department of Human Resources

- 701 Barbour Drive Raleigh, North Carolina 27603-2008 Mr. J. L. Harness Plant General Manager Brunswick Steam Electric P16at P. O. Box 10429 Southport, North Carolina 28461 7

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