ML18087A379
| ML18087A379 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 03/27/2018 |
| From: | Southern Nuclear Operating Co |
| To: | Office of New Reactors |
| Shared Package | |
| ML18087A375 | List: |
| References | |
| ITAAC 3.3.00.07d.iv.a, ND-18-0413 | |
| Download: ML18087A379 (3) | |
Text
U.S. Nuclear Regulatory Commission ND-18-0413 Enclosure 3 Page 1 of 3 Southern Nuclear Operating Company ND-18-0413 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.lv.a [Index Number 806]
U.S. Nuclear Regulatory Commission ND-18-0413 Enclosure 3 Page 2 of 3 ITAAC Statement Desion Commitment 7.d) Physical separation is maintained betweenClass 1E divisions 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 routeClass 1Ecables ofdifferent divisions, and between raceways that routeClass 1E cables and raceways that route non-Class1Ecables is consistent with the following:
iv) Separationdistances less than those specified above and not run in enclosed racewaysor provided with barriers are based on analysis Acceptance Criteria Results of the inspection will confirm that the 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.a) Forareas inside containment, a report exists and concludes that separationdistances less than those specifiedabove and not provided with enclosed raceways or barriers have been analyzed.
ITAAC ComDietion Description Multiple ITAAC are performed to ensure that physical separation is maintained between Class 1E divisions and between Class 1E divisions and non-Class 1E cables. In accordance with this ITAAC, separation distances for circuits that do notmeet the criteria of ITAAC 3.3.00.07d.ii.a or ITAAC 3.3.00.07d.iii.a may be based on analyses. Forcircuits that have separation distances based on analyses, the subject ITAAC requiresinspections to confirm that separation distances have been analyzed. The Class 1E cables and racewaysand non-Class1 E cables inside containment are designed to be appropriately separated in accordance with APP-GW-E1-001 (Reference 1). Installation Specifications provided tothe constructor identify separationcriteria, consistent with the ITAAC commitment.
Class 1E electrical cables and raceways are installed inaccordance with design drawings, installation specifications issued forconstruction and work package requirements. Completed raceway installation, in-progresscable installation, and completedcable terminations are inspected to ensure the separation installation specifications are satisfied. Inspectionsare performed inaccordance with the Construction Quality Verification Program 26139-000-4MP-T81C-N7101 (Reference 2). The completed inspection records document the satisfactoryseparation between racewaysthat routeClass 1E cables ofdifferent divisions, and between raceways that route Class 1Ecables and racewaysthat route non-Class 1E cables.
Cable Separation Reports XXX (References 3 and 4) identify the inspection reports associated with the racewayseparation inspectionsand confirm that the separation between raceways that
U.S. Nuclear Regulatory Commission ND-18-0413 Enclosure 3 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 containment, separation distances less than those specified above and not run in enclosed raceways or provided with barriers are based on analysis.
Exceptionsto the subject ITAAC are not included within the scope of this ITAAC and are addressed withinthe scope of ITAAC 3.3.00.07d.v.a (Enclosure 4).
The Cable Separation Reports(References3 and 4) are available for NRC inspection as part of the Unit3 and Unit4 ITAAC 3.3.00.07d.iv.a Completion Packages (References 5 and 6, respectively).
List of ITAAC Findings Inaccordance with plant procedures for ITAAC completion.Southern Nuclear Operating Company (SNC) performed a review of all ITAAC findings and associated correctiveactions.
This review found no relevant ITAAC findings associated with this ITAAC.
References favaiiabie 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.a Completion Package 6.
Unit 4 ITAAC 3.3.00.07d.iv.a Completion Package 7.
NEI 08-01, "IndustryGuidelinefor the ITAAC Closure Process Under 10 CFR Part 52"