ML20045G777

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Forwards Responses to NRC 930628 Comments on Chapter 14. Responses Where Applicable,Will Be Included in Amend 30 Scheduled for Transmittal on 930708
ML20045G777
Person / Time
Site: 05200001
Issue date: 07/02/1993
From: Fox J
GENERAL ELECTRIC CO.
To: Poslusny C
Office of Nuclear Reactor Regulation
References
NUDOCS 9307150167
Download: ML20045G777 (4)


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_...~......-.1, Gonersi Uecinc Compary 175 Curmer Amnae Sc hse. CA 95125 July 2,1993 Docket No, STN 52-001 Chet Poslusny, Senior Project Manager Standardization Project Directorate Associate Directorate for Advanced Reactors and License Renewal Office of the Nuclear Reactor Regulation

Subject:

Submittal Supporting Accelerated ABWR Schedule - Chapter 14

Dear Chet:

Enclosed are responses to NRC comments dated June 28,1993 on Chapter 14. These -

responses, where applicable, will be included in Amendment 30 scheduled for transmittal to the NRC on July 8,1993.

Please provide a copy of this transmittal to Frank Talbot.

Sincerely, M

Jack Fox Advanced Reactor Programs cc: Alan Beard (GE)

Norman Fletcher (DOE)

11. J. Yang (GE)

I 130166 JM 216 9307150167 930702 E O PDR ADOCK 05200001 g A PDR g jle

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Responses to NRC's Comments dated 6/28/93

. on the Review of ABWR SSAR Chapter 14

1. 14.2.12.1.2 A test to verify performance capability of the RMISS subsystem will be added to the test abstract section in Amendment 30. This test is to be done after the removable secondary seal is installed, the RIP impeller is backseated and the reactor cavity is filled to normal refueling level prior to fuel loading. The RMISS subsystem shall prevent reactor water leakage rate through the inflated secondary seal and the primary seal from exceeding the limit specified in the RRS design specification.
2. 14.2.12.1.8 A test to demonstrate the capability of placing RHR system into the AC-independent water addition mode of operation will be added to the test abstract section of 14.2.12.1.8 in Amendment 30.
3. 14.2.12.1.30 Based on the design specification, makeup water is supplied to MUWP by the makeup water preparation system. The quoted water quality spec. is an interface requirement and shall be checked in the MWP preoperational test. However, the MWP system is not within the scope of ABWR certified design. The COL applicant shall design a site specific MWP system which adopt the certified design to provide damineralized water to MUWP system with the specified water quality requirements. l
4. 14.2.12.1.45.4 A test to demonstrate the capability of cambustion turbine generator to automatically start, accelerate to rated speed, reach naminal voltage, and begin accepting loads within the specified time limit will be added to the test abstract section of 14.2.12.1.45.4 in Amendment 30.
5. 14.2.12.1.48 As stated in our response to NRC comments on SSAR Section 14.2, Docket No. STN 52-001 dated 5/13/93, it is not necessary to include a test to verify spurious control action design features of the fire protection system. Please refer to this mamo for a more detailed justification.
6. 14.2.12.1.57 The quoted offgas system flow testing will be performed in startup test stage (Subsection 14.2.12.2.35). Proper operation of the offgas system during all design modes of operations will be demonstrated by monitoring parameter values consistent with the PFD. The quoted SSAR Section 11.3.9 is in error and will be corrected accordingly in future SSAR revision.

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7. 14.2.12.1.59 Per design specification, makeup water is supplied to the CST from NUWP, CRD, radwaste and condensate return line. Therefore, verification of the quoted water quality requirements is necessary only during normal plant operation with all water sources in service. This check / verification is normally done as one of the plant routine surveillance activities.

Based on currently existing PEID, there is no ADV provided for the NUWC system. Therefore, the quoted test requirement in Section 9.2.9.4 for verifying operating integrity of A0V is in error and will be deleted in future SSAR revision.

8. 14.2.12.1.72 The test abstract 14.2.12.1.72.(3).(a) in Amendment 30 will be modified to verify instrumentation and system controls for proper operation. The quoted system initiation test is implicitly included by this test item.

Additionally, 14.2.12.1.72.(3).(d) in Amendment 30 will also be modified to verify proper operating conditions of the FCS while the system is in accident operating mode and regular testing mode of operation.

9. Additional Items 14.2.12.1.1.(2)

The quoted electrical instrument equipment was removed from prerequisite section based on a verifier's comments. Please refer to our response to NRC's comments, dated 6/18/93, for a more detailed justification.

14.2.12.1.5.(3)

The test abstract 14.2.12.1.5. (3) . (d) in Amendment 30 will be modified to address continuous pump and motor run test. System operation test at rated flow was already included by Section 14.2.12.1.5.(3).(m) and (o).

14.2.12.1.28.(2)

The quoted pressure proof test was removed from the prerequisite section based on a verifier's comments. The pressure proof test is part of the required construction tests and needs not to be specifically reiterated in the prerequisite section.

14.2.12.1.29.(3).(m) and (n)

The quoted test abstract 14.2.12.1.29.(3).(n) is a duplicate and will be removed from the text in Amendment 30.

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. l 14.2.12.1.36.(3).(h)

The quoted word " fall" is a typo and will be replaced with "of all" in Amendmet 30 accordingly. l 14.2.12.1.56.(2)

The quoted word " fuming gear" is a typo and will be changed to " turning gear a in Amendment 30 accordingly.

14.2.12.2.5 As stated in our response to NRC's cazments, dated 6/18/93, there is no such requirement to calibrate SRNM to indicate actual core thermal power in currently existing Technical Specifications. Please refer to Docket No. STN 52-001 for a more detailed justification.

14.2.12.2.21.(4)

The quoted words "during all odes of system operations" will be replaced with "during all modes of system operations" in Amendment 30. The quoted word " odes" is a typo.

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