ML18194A699
| ML18194A699 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 07/11/2018 |
| From: | Southern Nuclear Operating Co |
| To: | Office of New Reactors |
| Shared Package | |
| ML18194A695 | List: |
| References | |
| ND-18-0814 | |
| Download: ML18194A699 (3) | |
Text
U.S. Nuclear Regulatory Commission ND-18-0814 Enclosure 3 Page 1 of 3 Southern Nuclear Operating Company ND-18-0814 Vogtle Electric Generating Plant (VEGP) Unit3 and Unit4 Docket No.: 52-025 & 52-026 Completion Plan for Uncompleted ITAAC 3.3.00.07d.iv.b[Index Number 807]
U.S. Nuclear Regulatory Commission ND-18-0814 Enclosure 3 Page 2 of 3 ITAAC Statement Desion Commitment 7.6) 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 1Ecables will be performed to confirm that the separation between raceways that 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 specifiedabove and not run inenclosed raceways or provided with barriers are based on analysis Acceotance Criteria Results ofthe inspection will confirm thatthe separation between raceways that 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.b) Forareas inside the non-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 toensurethat 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 of ITAAC 3.3.00.07d.ii.b or ITAAC 3.3.00.07d.iii.b 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-Class 1Ecables inside the non-radiologically controlled area of the auxiliary building are designed to be appropriately separated in accordance 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 accordancewith the Construction Quality Verification Program 26139-000-4MP-T81C-N7101 (Reference 2). The completed inspection records document the satisfactory separation between raceways that route Class1Ecablesof different divisions, and between raceways that route Class 1Ecables and raceways that route non-Class 1Ecables.
Cable Separation Reports XXX (References 3 and4) identify the inspection reports associated with the raceway separation inspections and confirm thatthe separation between raceways that
U.S. Nuclear Regulatory Commission ND-18-0814 Enclosure 3 Page 3 of 3 route Class 1E cables of different divisions, and between raceways tfiat route Class 1E cables and racewaysthat route non-Class1Ecables is consistentwith the following:
Forareas insidethe non-radiologically controlled area ofthe auxiliary building, separation distances less than those specified above and not run inenclosed raceways or provided with barriersare based on analysis. The analyses performed forthis ITAAC are performed in accordance with IEEE Standard 384, and demonstrate that the effects of lesser separation do not impact the ability ofClass 1Ecircuits to perform theirsafety relatedfunctions.
Exceptions tothe subjectITAAC are notincluded within the scope ofthis ITAAC and are addressed within the scope of ITAAC 3.3.00.07d.v.b (Enclosure 4).
TheCable Separation Reports (References 3 and4)are available for NRC inspection as part of the Unit 3 and Unit 4 ITAAC 3.3.00.07d.iv.b Completion Packages (References 5 and 6, respectively).
List of ITAAC Findings In accordance with plant proceduresfor ITAAC completion. Southern Nuclear Operating Company (SNC) performed a review ofall ITAAC findings and associated corrective actions.
This reviewfound 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.
3.3.00.07d.iv.b-U3-CP-Rev0, ITAAC Completion Package 6.
3.3.00.07d.iv.b-U4-CP-Rev0, ITAAC Completion Package