ML18106A757
| ML18106A757 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 04/13/2018 |
| From: | Southern Nuclear Operating Co |
| To: | Office of New Reactors |
| Shared Package | |
| ML18106A753 | List: |
| References | |
| ITAAC 3.3.00.07d.iv.c, ND-18-0511 | |
| Download: ML18106A757 (3) | |
Text
U.S. Nuclear Regulatory Commission ND-18-0511 Enclosures Page 1 of 3 Southern Nuclear Operating Company ND-18-0511 Vogtle Electric Generating Plant (VEGP) Unit 3 and Unit 4 Docket No.: 52-025 & 52-026 Completion Plan for Uncompleted ITAAC 3.3.00.07d.iv.c [Index Number 808]
U.S. Nuclear Regulatory Commission ND-18-0511 Enclosures Page 2 of 3 ITAAC Statement Desion Commitment 7.d) Physical separation is maintained between Class 1Edivisions and between Class 1E divisions and non-Class 1E cables.
Inspections. Tests. Analvses Inspections ofthe as-built raceways that route Class 1Ecables will be performed to confirm that the separation between racewaysthat route Class 1Ecables ofdifferent divisions, and between raceways that route Class 1Ecablesand raceways that route non-Class 1Ecables isconsistent with the following:
iv) Separation distances less than those specified above and not run in enclosed racewaysor provided with barriers are based on analysis Acceptance Criteria Resultsofthe inspection will confirm that the separation between racewaysthat routeClass 1E cables of different divisions, and between raceways that route Class 1E cables and raceways that route non-Class 1E cables is consistent with the following:
iv.c) For areas inside the radiologically controlled area ofthe auxiliary building, a report exists and concludes that separation distances less than those specified above and not provided with enclosed raceways or barriers have been analyzed.
ITAAC Completion Description Multiple ITAAC are performed to ensurethat physical separation is maintained between Class 1E divisions and between Class 1E divisions and non-Class 1E cables. In accordance with this ITAAC, separation distancesfor circuits that do notmeetthe criteria ofITAAC 3.3.00.07d.ii.c or ITAAC 3.3.00.07d.iii.c may be based on analyses. Forcircuitsthat have separation distances based on analyses, the subject ITAAC requiresinspections to confirm that separation distances have been analyzed. The Class 1Ecables and raceways and non-ClassI Ecables inside the radiologically controlled area of the auxiliary building are designed to be appropriately separated inaccordance with APP-GW-E1-001 (Reference 1). Installation Specificationsprovided to the constructor identify separation criteria, consistent with the ITAAC commitment.
Class 1E electrical cables and raceways are installed in accordance with design drawings, installation specifications issuedfor construction and work package requirements. Completed raceway installation, in-progress cable installation, and completed cableterminations are inspectedto ensure the separation installation specifications are satisfied. Inspections are performed in accordance with the Construction Quality Verification Program 26139-000-4MP-T81C-N7101 (Reference 2). The completed inspection records document the satisfactory separation between raceways that route Class 1Ecables ofdifferent divisions, and between raceways that routeClass 1E cables and racewaysthat routenon-Class1Ecables.
CableSeparation Reports XXX (References 3 and 4) identify the inspection reports associated with the raceway separation inspections and confirm thatthe separation between raceways that
U.S. Nuclear Regulatory Commission ND-18-0511 Enclosures Page 3 of 3 route Class 1E cables of different divisions, and between raceways that route Class 1E cables and raceways that route non-Class 1E cables is consistent with the following:
For areas inside the radiologically controlled area of the auxiliary building, separation distances less than those specified above and not run in enclosed raceways or provided with barriers are based on analysis.
Exceptions to the subject ITAAC are not included within the scope ofthis ITAAC and are addressed withinthe scope of ITAAC 3.3.00.07d.v.c (Enclosure 4).
The CableSeparation Reports (References3 and 4) are available for NRC inspection as part of the Unit 3 and Unit 4 ITAAC 3.3.00.07d.iv.c Completion Packages (References 5 and 6, respectively).
List of ITAAC Findings In accordance with plant procedures for ITAAC completion, Southem NuclearOperating Company(SNC) performed a review ofall ITAAC findings and associated corrective actions.
This review found no relevant ITAAC findings associated with this ITAAC.
References favailable for NRC inspection)
- 1. APP-GW-E1-001, Electrical Systems Design Criteria 2.
26139-000-4MP-T81C-N7101, Bechtel Construction Quality Verification Program 3.
Unit 3 Cable Separation Report XXX 4.
Unit 4 Cable Separation Report XXX 5.
Unit 3 ITAAC 3.3.00.07d.iv.c Completion Package 6.
Unit 4 ITAAC 3.3.00.07d.iv.c Completion Package 7.
NEI 08-01, "Industry Guideline for the ITAAC Closure Process Under 10 CFR Part 52"