ML18107A132
| ML18107A132 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 04/10/2018 |
| From: | Southern Nuclear Operating Co |
| To: | Office of New Reactors |
| Shared Package | |
| ML18107A128 | List: |
| References | |
| ND-18-0500 | |
| Download: ML18107A132 (3) | |
Text
U.S. Nuclear Regulatory Commission ND-18-0500 Enclosure 3 Page 1 of 3 Southern Nuclear Operating Company ND-18-0500 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.b [Index Number 807]
U.S. Nuclear Regulatory Commission ND-18-0500 Enclosure 3 Page 2 of 3 ITAAC Statement Desion Commitment 7.d) Physical separation is maintainedbetween Class 1E divisions and between Class 1E divisions and non-Class 1E cables.
Insoections. Tests. Analvses Inspections ofthe as-built racewaysthat route Class 1Ecables will be performed to confirm that the separation between raceways that route Class 1E cables ofdifferent divisions, and between racewaysthat routeClass 1E cables and racewaysthat routenon-Class1Ecables is consistent 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 Acceptance Criteria Results ofthe inspectionwill 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.b) For areas insidethe non-radiologically controlled area of the 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 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 forcircuits that do not meet the criteria of ITAAC 3.3.00.07d.ii.b or ITAAC 3.3.00.07d.iii.bmay be based on analyses. For circuitsthat have separation distances based on analyses, the subject ITAAC requires inspectionsto confirm that separation distances have been analyzed. The Class 1Ecables and racewaysand non-Class1Ecables inside the non-radiologically controlled area ofthe auxiliary building are designed to be appropriately separated inaccordance with APP-GW-E1-001 (Reference1). Installation Specifications provided to the constructor identify separation criteria, consistentwith the ITAAC commitment.
Class 1E electrical cables and raceways are installed in accordance with design drawings, installation specifications issued forconstruction and work package requirements. Completed raceway installation, in-progress cable installation, and completedcable terminations are inspected to ensure the separation installation specificationsare satisfied. Inspections are performed inaccordance with the Construction QualityVerification Program 26139-000-4MP-T81C-N7101 (Reference 2). The completed inspection records document the satisfactory separation between racewaysthat routeClass 1Ecables ofdifferent divisions, and between raceways that route Class 1E cables and raceways that route non-Class 1E cables.
Cable Separation ReportsXXX (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-18-0500 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-Class 1E cables is consistent with the following:
For areas insidethe non-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 on analysis.
Exceptions to the subject ITAAC are notincluded within the scope ofthis ITAAC and are addressed within the scope of ITAAC 3.3.00.07d.v.b (Enclosure 4).
The Cable Separation Reports (References 3 and 4)are available for NRC inspection as partof the Unit3 and Unit 4 ITAAC 3.3.00.07d.iv.b Completion Packages (References 5 and 6, respectively).
List of ITAAC Findings In accordance with plantprocedures for ITAAC completion. Southern Nuclear Operating Company (SNC) performed a review ofall ITAAC findings and associated corrective actions.
This reviewfound no relevant ITAAC findings associated withthis 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.b Completion Package 6.
Unit 4 ITAAC 3.3.00.07d.iv.b Completion Package