ML18194A711

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Completion Plan for Uncompleted ITAAC 3.3.00.07d.ii.c (Index Number 802)
ML18194A711
Person / Time
Site: Vogtle  Southern Nuclear icon.png
Issue date: 07/11/2018
From:
Southern Nuclear Operating Co
To:
Office of New Reactors
Shared Package
ML18194A709 List:
References
ND-18-0817
Download: ML18194A711 (5)
v • d • e


Text

U.S. Nuclear Regulatory Commission ND-18-0817 Enclosure 1 Page 1 of 5 Southern Nuclear Operating Company ND-18-0817 Vogtle Electric Generating Plant (VEGP) Unit3 and Unit 4 Docket No.: 52-025 & 52-026 Compietion Plan for Uncompleted ITAAC 3.3.00.07d.ii.c[Index Number 802]

U.S. Nuclear Regulatory Commission ND-18-0817 Enclosure 1 Page 2 of 5 ITAAC Statement Desion Commitment T.d) Physical separation is maintained between Class 1E divisions 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 1Ecables and raceways that route non-Class 1Ecables isconsistent with the following:

ii.c) Within otherplant areas (limited hazard areas), the minimum separation isdefined byone of the following:

1)The minimum vertical separation is5 feet and the minimum horizontal separation is 3 feet.

2)The minimum vertical separation is 12 inchesand the minimum horizontal separation is 6 inches for raceways containingonlyinstrumentation and control and low-voltage power cables ^ 2/0 AWG. This minimumvertical separation is 3 inches for the configuration with a conduitabove and crossing the open tray at an angle equal to or greater than 45 degrees.

3) The minimum vertical separation is 12 inchesand the minimum horizontal separation is 6 inches between a conduit and an open configuration for low-voltage power cables greater than 2/0 AWG butnotgreater than 750 kcmil. The vertical separation is 3 inches if a conduit is above and crossing an open tray at an angle equal to or greater than 45 degrees.
4) For configurations that involve exclusively limited energycontent cables (instrumentation and control), the minimum vertical separation is 1 inch and the minimum horizontal separation is 1 inch.
5) For configurations involving an enclosed raceway and an open raceway with low-voltage power cables, the minimum vertical separation is1 inch if theenclosed raceway is below the open raceway.
6) For configuration involving enclosed raceways, the minimum separation is 1 inch in both horizontal and vertical directions.
7) The minimum vertical separation is 1 inch and the minimum horizontal separationis 1 inch forconfigurations with a non-safetyconduit and a free air safety cable with low-voltage power cables and below.

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:

U.S. Nuclear Regulatory Commission ND-18-0817 Enclosure 1 Page 3 of 5 ii.c) Within other plantareas inside the radiologically controlled area ofthe auxiliary building (limited hazard areas), the separation meets one of the following:

1)The vertical separation is 5 feet or moreand the horizontal separation is 3 feet or more.

2)The minimum vertical separation is 12 inchesand the minimum horizontal separation is 6 inches for raceways containingonly instrumentation and control and low-voltage power cables S2/0 AWG. This minimumvertical separation may be reduced to 3 inches for the configuration with a conduit above and crossing the open trayat an angleequalto or greater than 45 degrees.

3)The minimum vertical separation is 12inches andthe minimum horizontai separation is 6 inches between a conduit and an open configuration for low-voltage power cables greater than 2/0 AWG but not greater than 750 kcmil. The vertical separation may be reduced to 3 inches if a conduit is above and crossing an open tray at an angle equal to or greater than 45 degrees.

4) For configurations that involve exclusively limited energy content cables (instrumentation and control), the minimum vertical separation is 1 inch and the minimum horizontal separation is 1 inch.
5) For configurations that involve an enclosed raceway and an open raceway with low-voltage power cables,the minimum vertical separation is 1 inch if the enclosed raceway is below the open raceway.
6) For configurations that involve enclosed raceways, the minimum vertical andhorizontal separation is 1 inch.

7)The minimum vertical separation is1 inch andthe minimum horizontal separation is 1 inch for configurations with a non-safety conduit and a free airsafetycable with low-voltage power cables and below.

ITAAC ComDietion Description Multiple ITAAC are performed toensure that physical separation ismaintained between Class 1E divisions and between Class 1E divisions and non-Class 1E cables. This ITAAC requires inspections ofthe as-built raceways that route Class 1Ecablesand raceways that route non-Class1E cables inside the radiologically controlled area ofthe auxiliary building to confirm thatphysical separation between raceways that route Class 1Ecables of different divisions and between raceways that route Class 1Ecablesand raceways that route non-Class 1Ecables meet the required separation distances. TheClass1Ecablesand raceways and non-ClassI E cables inside the radiologically controlled area ofthe auxiliary building are designedto be appropriately separated in accordance with APP-GW-E1-001 (Reference 1). Installation specifications provided totheconstructor identify theseparation criteria, consistent with the ITAAC commitment.

Class 1E electrical cables and raceways are installed inaccordance with design drawings, installation specifications issued for construction andwork package requirements. Completed raceway installation, in-progress andcompleted cable installation, and completed cable terminations are inspected to ensure the separation installation specifications are satisfied.

U.S. Nuclear Regulatory Commission ND-18-0817 Enclosure 1 Page 4 of 5 Inspections are performed in accordance with the Construction QualityVerification Program 26139-000-4MP-T81C-N7101 (Reference 2). The completed inspection records document the satisfactoryseparation between raceways that route Class 1E cables 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 raceway separation inspections and 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:

Within other plantareas inside the radiologically controlled area of the auxiliary building (limited hazard areas), the separation meets one of the following:

1) The vertical separation is 5 feet or more and the horizontal separation is 3 feet or more.
2) The minimum vertical separation is 12 inches and the minimum horizontal separation is 6 inches for raceways containing only instrumentation and controland low-voltage power cables ^2/0 AWG. This minimumvertical separation may be reduced to 3 inches for the configuration with a conduitabove and crossing the open tray at an angle equal to or greater than 45 degrees.
3) The minimum vertical separation is 12 inches and the minimum horizontal separation is 6 inches between a conduit and an open configuration for low-voltage power cables greater than 2/0 AWG but not greater than 750 kcmil. The vertical separation may be reduced to 3 inches if a conduit is above and crossing an open tray at an angle equal to or greater than 45 degrees.
4) Forconfigurations that involve exclusively limited energy contentcables (instrumentation and control), the minimum vertical separation is 1 inch and the minimum horizontal separation is 1 inch.
5) Forconfigurations that involve an enclosed racewayand an open racewaywith low-voltage powercables, the minimum vertical separation is 1 inch if the enclosed raceway is below the open raceway.
6) Forconfigurations that involve enclosed raceways, the minimum vertical and horizontal separation is 1 inch.
7) The minimum vertical separation is 1 inch and the minimum horizontal separation is 1 inchfor configurations with a non-safety conduitand a free air safety cable with low-voltage power cables and below.

Exceptions are not included within the scope ofthis ITAAC and are addressed within the scope of ITAAC 3.3.00.07d.iii.c (Enclosure 2), ITAAC 3.3.00.07d.iv.c(Enclosure 3), or ITAAC 3.3.00.07d.v.c (Enclosure 4).

The Cable Separation Reports (References 3 and 4) are avaiiable for NRC inspection as part of the Unit3 and Unit4 ITAAC 3.3.00.07d.ii.c Completion Packages (References 5 and 6, respectively).

U.S. Nuclear Regulatory Commission ND-18-0817 Enclosure 1 Page 5 of 5 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 with this ITAAC.

References favailabie for NRG inspection)

1. APP-GW-E1 -001, ElectricalSystems Design Criteria 2.

26139-000-4MP-T81C-N7101, Bechtel Construction Quality Verification Program 3.

Unit 3 Cable Separation Report XXX 4.

Unit4 Cable Separation Report XXX 5.

3.3.00.07d.ii.c-U3-CP-Rev0, ITAAC Completion Package 6.

3.3.00.07d.ii.c-U4-CP-Rev0, ITAAC Completion Package

7. NEI 08-01, "Industry Guideline for the ITAAC Closure Process Under 10CFR Part 52"
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