ML19338E085
| ML19338E085 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 09/10/1980 |
| From: | Tedesco R Office of Nuclear Reactor Regulation |
| To: | Nichols T SOUTH CAROLINA ELECTRIC & GAS CO. |
| References | |
| NUDOCS 8009240510 | |
| Download: ML19338E085 (4) | |
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e' 49 UNITED STATES
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NUCLEAR REGULATORY COMMISSION j
j WASHINGTON, D, C. 20565
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September 10, 1980 Docket No. 50-395' Mr. T. C. Nichols, Jr.
Vice' President & Group Executive Nuclear Operations South Carolina Electric & Gas Company Post Office Box 764 Columbus, South Carolina 29281
Dear Mr. Nichols:
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION - VIRGIL C. SUMMER NUCLEAR STATION, UNIT NO. 1 Enclosed are requests for additional information regarding your preliminary preservice inspection program.
Please advise us of the schedule for your response.
If you require any clarification of these requests please contact the staff's assigned licensing proje' t manager.
c Sincerely, EA c4 Robert L. Tedesco, Assistant Director for Licensing Division of Licensing i
Enclosure:
As stated cc w/ enclosure:
See next page
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SEP 101990 Mr. T. C. Nichols, Jr.
Vice President & Group Executive Nuclear Operations South Carolina Electric & Gas Company P. O. Box 764 Columbia, South Carolina 29281 cc: Mr. William A. Williams, Jr.
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Vice President South Carolina Public Service Authority 223 North Live Oak Drive Moncks Corner, South Carolina 29461 Troy B. Conner, Jr., Esq.
Conner, Moore & Corber 1747 Pennsylvania Avenue, N. W.
Washington, D. C.
20006 Mr. Mark B. Whitaker, Jr.
Group Manager - Nuclear Engineering & Licensing South Carolina Electric & Gas Company P. O. Box 764 Columbia, South Carolina 29218 Mr. Brett Allen Bursey Route 1, Box 93C Little Mountain, South Carolina 29076 Resident Inspector / Summer NPS c/o V. S. NRC P. O. Box 1047 Irmo, South Caralina 29063 2
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ENCLOSURE VIRGIL C. SumER NUCLEAR STATION 121.0 REVIEW 0F PRELIMINARY PRESERVICE INSPECTION PROGRAM 121.24 The applicant's preliminary preservice inspection program, AP-014, states that Class 1 Class 2 and Class 3 components will be examined to the 1974 Edition of Section XI to the extent practical.
In order to evaluate the applicant's preservice inspection program compared with the specific requirements of the 1974 Edition including Addenda though Summer 1975, we will require the following information:
a.
For each component that cannot be completely examined in accordance with ASME Code,Section XI requirements, submit a relief request in accordance with the guidelines in Appendix A of Question 121.1.
Specific information should include the extent of the Section XI require-ments.that were performed, alternative nondestructive examinations and a description of the measures required to perform the required examinations.
In cases where relief is requested from piping welds, provide a list of the welds that cannot be completely examined to Section XI requirements.
Identify the specific parts of the ECCS and RHRS where IWC1220(a) and (c) exemptions are used and a preservice examination was not performed.
121.25 For the preservice inspection program, the following information is necessary to clarify specific aspects of the FSAR and the preliminary preservice inspection program AP-014, Rev. O.
a.
Describe the exclusion sizes in the piping pressure boundary you have used based on IWB-1220(b) of Section XI.
Support these sizes with documentation if they are not exempted by other criteria, b.
List all Class 2 welds which cannot be examined volumetrically due to thin wall thickness.
c.
Provide a specific relief request for the charging pump casing welds.
d.
Discuss the impact on plant safety of the omission of NDE on nozzle to vessel welds of the residual heat exchanger are referenced in Note 3 of the Preservice. Inspection Program.
121.26 Section 5.7.7 of the. applicant's SER states that high energy fluid system piping is inspected to the requirements of ASt1E Code Section XI and augmented inspection is not deemed necessary.
The Standard Review Plans (SRP) 3.6.1 and 3.6.2 require the extent of inser-vice examinations completed each interval should provide 100 percent volume-tric examination of circumferential and longitudinal pipe welds. There augmented inservice inspection requirements generally exceed the Section XI requirements.
In order to evaluate the degree of compliance with the augmented inservice inspection requirements in SRP 3.6.1 and 3.6.2, we will require the following information:
1.
Describe the Section XI preservice examinations performed on these welds.
2.
Provide a list of the high energy piping welds that are not being com-pletely examined and a technical justification.
121. 27 Section 5.7.6.6 of the applicant's FSAR states the repair procedures in IWC-4000 and IWD-4000 of 1974 Edition of Section XI are in the course of pre-paration. _ Therefore, the applicant proposes to use provisions of the ASME Code,Section III edition applicable to construction of the component.
The Regulation requires that the initial 10 year ISI program be based on the 1977 Edition including all Addenda through Summer 1978 with certain exceptions defined in 10CFR50.55a, unless the V.C. Summer operating license is issued before November 1,1980.
The 1977 Edition of Section XI requires that Class 2 and Class 3 components be repaired to rules of IWB-4000. We will require a specific relief request governing repair procedures in the inservice inspection program if the re-quirements defined in 10CFR50.55a can not be met.
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