ML18106A755

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Enclosure 1 - Completion Plan for Uncompleted ITAAC 3.3.00.07d.ii.c (Index Number 802)
ML18106A755
Person / Time
Site: Vogtle  Southern Nuclear icon.png
Issue date: 04/13/2018
From:
Southern Nuclear Operating Co
To:
Office of New Reactors
Shared Package
ML18106A753 List:
References
ITAAC 3.3.00.07d.ii.c, ND-18-0511
Download: ML18106A755 (5)
v • d • e


Text

U.S. Nuclear Regulatory Commission ND-18-0511 Enclosure 1 Page 1 of 5 Southern Nuclear Operating Company ND-18-0511 Vogtle Electric Generating Plant (VEGP) Unit3 and Unit 4 Docket No.: 52-025 & 52-026 Completion Plan for Uncompleted ITAAC 3.3.00.07d.ii.c [Index Number 802]

U.S. Nuclear Regulatory Commission ND-18-0511 Enclosure 1 Page 2 of 5 ITAAC Statement Desion Commitment 7.d) Physical separation is maintained between Class 1Edivisions 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 inches and the minimum horizontal separation is 6 inchesfor raceways containing only instrumentation and control and low-voltage power cables ^ 2/0 AWG.This minimum vertical separation is 3 inches for the configuration with a conduit above 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 but not greater 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) Forconfigurations involving 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 configuration involving enclosed raceways, the minimum separation is 1 inch inboth horizontal and vertical directions.
7) The minimum vertical separation is 1 inch and the minimum horizontal separation is 1 inch forconfigurations with a non-safety conduit and a free air safety cable with low-voltage power cables and below.

Acceptance Criteria Resultsofthe inspection will confirm that the separation between racewaysthat routeClass 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-18-0511 Enclosure 1 Page 3 of 5 ii.c) Within other plant areas inside the radiologically controlled area of the auxiliary building (limited hazard areas), the separation meets one of the following:

1) The verticalseparation is 5 feet or more and the horizontalseparation is 3 feet or more.
2) The minimum verticalseparation is 12 inches and the minimum horizontalseparation is 6 inches for raceways containing only instrumentation and control and low-voltage power cables ^2/0 AWG. This minimum vertical separation may be reduced to 3 inches for the configuration with a conduit above and crossing the open tray at an angle equal to or greater than 45 degrees.
3) The minimum verticalseparation is 12 inches and the minimum horizontalseparation 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 content cables (instrumentation and control), the minimum verticalseparation 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 inch forconfigurations with a non-safetyconduit and a free air safety cable with low-voltage power cables and below.

ITAAC Completion Description Multiple ITAAC are performed to ensurethat physical separation is maintained between Class 1E divisions and between Class 1E divisions and non-Class 1E cables. This ITAAC requires inspections ofthe as-built racewaysthat route Class 1E cables and racewaysthat route non-Class 1E cables inside the radiologically controlled area ofthe auxiliary building to confirm that physical separation between raceways that route Class1Ecablesof different divisions and between raceways that route Class 1Ecables and raceways that route non-Class 1Ecables meetthe required separation distances. TheClass 1Ecablesand raceways and non-ClassI E cables inside the radiologically controlled area ofthe auxiliary building are designed to be appropriately separated in accordance with APP-GW-E1-001 (Reference 1). Installation Specifications provided tothe constructor identify the 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 racewayinstallation, in-progress cable installation, and completed cable terminations are inspected to ensure the separation installation specifications are satisfied. Inspections are

U.S. Nuclear Regulatory Commission ND-18-0511 Enclosure 1 Page 4 of 5 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 1E cables of different divisions, and between raceways that route Class 1E cables and raceways that route non-Class 1E cables.

Cable Separation Reports XXX (References 3 and 4) identifythe 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 withthe following:

Within other plant areas insidethe 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 inches and the minimum horizontal separation is 6 inches for raceways containing onlyinstrumentation 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 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 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 thatinvolve enclosed raceways, the minimum vertical and horizontal separation is 1 inch.

7)The minimum vertical separation is 1 inch andthe minimum horizontal separation is 1 inch forconfigurations with a non-safety conduit and a free airsafety cable with low-voltage power cables and below.

Exceptions are not included within the scopeof this ITAAC and are addressedwithin thescope of IT/\\AC 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).

TheCable Separation Reports (References 3 and4)are available 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-18-0511 Enclosure 1 Page 5 of 5 List of ITAAC Findings In accordance with plant procedures for ITAAC completion, Southem Nuclear Operating Company (SNC) performed a review of all ITAAC findings and associated corrective actions.

This review found no relevant ITAAC findings associated with this ITAAC.

References (available for NRG 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.ii.c Completion Package 6.

Unit 4 ITAAC 3.3.00.07d.ii.c Completion Package

7. NEI 08-01, "Industry Guideline forthe ITAAC ClosureProcess Under 10 CFR Part 52"
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