ML19212A292
| ML19212A292 | |
| Person / Time | |
|---|---|
| Site: | 05000495 |
| Issue date: | 08/18/1979 |
| From: | Vassallo D Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML19208B529 | List: |
| References | |
| NUDOCS 7909200518 | |
| Download: ML19212A292 (4) | |
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UNITED STATES y y ).S-q
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NUCLEAR REGULATORY COMMISSION g
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p STONE & WEBSTER ENGINEERING CORPORATION DOCKET NO. STN 50-495 STANDARD SAFETY ANALYSIS REPORT FOR SWESSAR-P1 BALAtlCE-OF-PLANT STANDARD DESIGN
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AND ITS RELATIONSHIP TO THE CESSAR STANDARD DESIGN PRELIMINARY DESIGN APPROVAL (PDA)
Preliminary Design Acoroval No. PDA-6 Amendment No. 2 (1) Stone & Webster Engineering Corporation has submitted to the Nuclear Regulatory Commission's (NRC) staff for its review a propcsed standard-ized preliminary design for major portions of a nuclear power reactor facility of the type described in 10 CFR 50.22. The preliminary design is described in Stone & Webster Engineering Corporation Standard Safety Analysis Report, SWESSAR-P1, along with 41 amendments thereto (herein-after collectively referred to as SWESSAR-Pl).
(2) SWESSAR-Pl contains preliminary design information in accordarce with 10 CFR Part 50, Appendix 0, paragraph 3, for the balance-of-plant portion of a pressurized water reactor nuclear power plant, which encompasses:
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(a) The major structures, including the containment, annulus building (which also functions as a partial secondary containment), the control building, diesel generator building, and the fuel building; (b) An optional full secondary containment enclosure with and without internal atmospheric mixing; (c) The major balance-of-plant systems, including the containnent spray system, fire protection system, ventilation and air conditien-ing systems, liquid and gaseous radwaste systems, reactor plant service and component cooling water systems, main and auxiliary feedwater systems, turbine system with the associated steam and power converrion systems, and the associated electric pcwer and controls for the preceding; and (d) Related systems and features.
N2341 7909200 f/f The SWESSAR-P1 balance-of-plant design is designed to operate at a nuclear steam supply system (NSSS) core thermal power of 3800 megawatts. The SWESSAR-Pl design does not include a nuclear steam supply system design but the application incorporates by reference a number of standard pressurized water reactor nuclear steam supply system designs.
(3) The SWESSAR-Pl reference design and its relationship to the CESSAR standard nuclear steam supply system design have been reviewed by the NRC staff and by the Advisory Committee on Reactor Safeguards.
The CESSAR design was submitted by the Combustion Engineering, Incorporated in the form of an application for a Preliminary Design Approval from the Commission for the CESSAR stendard nuclear steam supply system
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design. The results of the NRC staff evaluation of the SWESSAR-Pl/
CESSAR standard balance-of-plant design are presented in the Safety Evaluation Report, NUREG-0096, dated August 1976.
(The results of the NRC staff evaluation of the CESSAR reference design are presented in the Safety Evaluation Report, NUREG-75/ll2, dated December 1975.)
The Advisory Committee on Reactor Safeguards' comments are set forth in its letter of June 11,1976 (Appendix D to the Safety Evaluation Report).
(4) Based on its review and the findings set forth in Section 19 of the Safety Evaluation Report, the NRC staff has concluded that subject to the conditions set forth herein, the information provided in SWESSAR-Pl with respect to major portions of the preliminary balance-of-plant design encompassed by SWESSAR-P1, as described in paragraph 2 above, complies with the requirements of 10 CFR Part 50, Appendix 0, and is acceptable for incorporation by reference in applications for con-struction permits which also reference the CESSAR design.
In accord-ance with 10 CFR Part 50, Appendix 0, subject to the conditions set forth herein and in Appendix 0, the approved design shall be utilized and relied upon by the staff and the Advisory Comm;ttee on Reactor Safeguards in their review of any individual facility license applica-tion which incorporates by reference the approved design, unless there exists significant new information which substantially affects the determination set forth in this Preliminary Casign Approval or other good cause.
(5) The SWESSAR-Pl reference design, subject to the conditicns set forth herein, is acceptable for incorporation as a reference design for the balance-of-plant portion of construction permit applications which also incorporate by reference the CESSAR design as the preliminary design for the nuclear steam supply system; provided that (a) the design of the remainder of the plant which interfaces with the approved SWESSAR P1 design conforms to the safety-related interface requirements set forth in SWESSAR-P1 and in the Safety Evaluation Report (see Table 1-1 therein),
and (b) the additional information needed to complete the assessment of SWESSAR-Pl/CESSAR interfaces is provided in the construction permit application (see Table 1-2 in the Safety Evaluation Report).
(6) This Preliminary Design Approval is applicable to those systems and design features of the SWESSAR-P1 design combination described and evaluated in Sections 1 through 19 of the Safety Evaluation Report (NUREG-0049); those systems and design features described and evalu-ated in Appendix A of the Safety Eval ~uation Report (these systems and features are not within the scope defined for a standard balance-of-plant) are not included in this Preliminary Design Approval.
(7) This Preliminary Design Approval is subject to the satisfactory and timely submission of further information concerning the matter of anti-
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cipated transients without scram as it may relate to the SSESSAR-P1 balance-of-plant design.
(8) This Preliminary Design Approval is subject to a review by the Nuclear Regulatory Commission staff to confirm the adequacy of the Stone & Webster Engineering Corporation responses to the PDA-6 extension review matters contained in Amendments 40 and 41 to the SWESSAR-P1 Safety Analysis Report.
Such a review would be conducted as soon as the Nuclear Regulatory Commission staff is informed by a utility-applicant that it intends to reference the SWESSAR-Pl/CESSAR design in a construction permit application filed after August 18, 1979. Such a review would be scheduled for completion prior to the tendering of the utility application.
(9) This Preliminary Design Approval and all applications for construction permits incorporating it by reference are subject to all applicable provisions of the Atomic Energy Act of 1954, as amended, and the rules and regulations and Orders of the Commission now or hereafter in effect.
(10) This Preliminary Design Approval does not constitute a commitnent to issue a permit or license or in any way affect the authority of the Comission, Ato:aic Safety and Licensing Appeal Board, Atcmic Safety and Licensing Boards, end other presiding officers in any proceeding under Subpart G of 10 CFR Part 2.
(11) This Preliminary Design Approval is effective as its date of issuance and shall expire on August 18, 1981, unless earlier superseded by the issuance of a Final Design Approval for the SWESSAR-Pl reference aesign in combination with the CESSAR design or extended by the NRC staff.
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The expiration of this Preliminary Design Approval on August 13, 1981, shall not affect the use of this Preliminary Design Approval for refer-ence in any construction permit application docketed prior to such date.
FOR THE NUCLEAR REGULATORY C0fdMISSION a
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A" Domenic B. Vassai.0, Acting Director Division of Project Management Office of Nuclear Reactor Regulation Date of Issuance: August 18, 1979 e
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