ML18194A714
| ML18194A714 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 07/11/2018 |
| From: | Southern Nuclear Operating Co |
| To: | Office of New Reactors |
| Shared Package | |
| ML18194A709 | List: |
| References | |
| ND-18-0817 | |
| Download: ML18194A714 (3) | |
Text
U.S. Nuclear Regulatory Commission ND-18-0817 Enclosure 3 Page 1 of 3 Southern Nuclear Operating Company ND-18-0817 Vogtle Electric Generating Plant (VEGP) Unit3 and Unit4 Docket No.: 52-025 & 52-026 Completion Plan for Uncompleted ITAAC 3.3.00.07d.iv.c [IndexNumber808]
U.S. Nuclear Regulatory Commission ND-18-0817 Enclosure 3 Page 2 of 3 ITAAC Statement Design Commitment y.d) Physical separation is maintained between Class 1Edivisions and between Class 1E divisions and non-Class 1E cables.
Insoections. Tests. Analvses Inspections ofthe as-built raceways that route Class 1Ecableswill be performed to confirm that the separation between raceways that route Class 1Ecables ofdifferent divisions, and between raceways that route Class 1Ecables and raceways that route non-Class 1Ecables isconsistent with the following:
iv) Separation distances less than those specified above and not run in enclosed raceways or provided with barriers are based on analysis Acceotance Criteria Resultsofthe inspection will confirm that the separation between racewaysthat 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:
iv.c) For areas inside the radiologically controlled area ofthe auxiliary building, a report exists and concludesthat 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 toensurethat physical separation ismaintained between Class 1E divisions and between Class 1E divisions and non-Class 1E cables. In accordance with this ITAAC, separation distances for circuits thatdo notmeetthe criteria of ITAAC 3.3.00.07d.ii.c or ITAAC 3.3.00.07d.iii.c may be based on analyses. Forcircuits that have separation distances based on analyses, the subject ITAAC requires inspections to confirm that separation distances have been analyzed. The Class 1Ecables and raceways and non-Class1 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 specifications provided 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 and completed cable installation, and completed cable terminations 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 1Ecablesofdifferent divisions, and between racewaysthat 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-18-0817 Enclosure 3 Page 3 of 3 route Class 1E cables of different divisions, and between raceways that route Class 1E cables and racewaysthat route non-Class1E cables is consistentwith the following:
Forareas inside the radiologically controlled area ofthe auxiliary building, separation distances less than those specified above and not run in enclosed raceways or provided with barriers are based onanalysis. Theanalyses performed for this ITAAC are performed in accordance with IEEE Standard 384, and demonstrate that the effects of lesser separation do not impactthe ability ofClass 1E circuits to perform theirsafety related functions.
Exceptions tothe subject ITAAC are not included within the scopeof this ITAAC andare addressed within the scope of ITAAC 3.3.00.07d.v.c (Enclosure 4).
TheCable Separation Reports (References 3 and4)are available for NRC inspection as part of the Unit 3 and Unit4 ITAAC 3.3.00.07d.iv.c Completion Packages (References 5 and 6, respectively).
List of ITAAC Findings In accordancewith plant procedures for ITAAC completion. Southern Nuclear Operating Company (SNC) performed a review of all ITAAC findings andassociated corrective actions.
This reviewfound no relevant ITAAC findings associated withthis ITAAC.
References (available for NRC inspection)
- 1. APP-GW-E1-001, Electrical Systems Design Criteria 2.
26139-000-4MP-T81C-N7101, Bechtel Construction Quality Verification Program 3.
Unit3 Cable Separation Report XXX 4.
Unit 4 Cable Separation Report XXX 5.
3.3.00.07d.iv.c-U3-CP-Rev0, ITAAC Completion Package 6.
3.3.00.07d.iv.c-U4-CP-Rev0, ITAAC Completion Package
- 7. NEI 08-01, "Industry Guideline for the ITAAC Closure Process Under 10CFR Part 52"