ML18087A377

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Enclosure 1 - Completion Plan for Uncompleted ITAAC 3.3.00.07d.ii.a (Index Number 800)
ML18087A377
Person / Time
Site: Vogtle  Southern Nuclear icon.png
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.ii.a, ND-18-0413
Download: ML18087A377 (5)
v • d • e


Text

U.S. Nuclear Regulatory Commission ND-18-0413 Enclosure 1 Page 1 of 5 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.ii.a [Index Number 800]

U.S. Nuclear Regulatory Commission ND-18-0413 Enclosure 1 Page 2 of 5 ITAAC Statement Design Commitment 7.d) Physical separation is maintained between Class 1E divisions and between Class 1E divisions and non-Class 1E cables.

Inspections. Tests. Analvses Inspections of the as-built raceways that route Class 1E cables will be performed to 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:

ii.a) Within other plant areas (hazard areas), the minimum separation is defined by one of the following:

1) The minimum vertical separation is 5 feet and the minimum horizontal separation is 3 feet.
2) The minimum vertical separation is 12 inches and the minimum horizontal separation is 6 inches for raceways containing only instrumentation and control and low-voltage power cables 2 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 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 verticalseparation is 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 vertical separation is 1 inch and the minimum horizontal separation is 1 inch.
5) Forconfigurations involving an enclosed racewayand an open raceway with low-voltage power cables, the minimum vertical separation is 1 inch if the enclosed raceway is belowthe 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 separation is 1 inch for configurations with a non-safety conduit and a free air safety cable with low-voltage power cables and below.

U.S. Nuclear Regulatory Commission ND-18-0413 Enclosure 1 Page 3 of 5 Acceotance Criteria Results of the inspection will confirmthat 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:

ii.a) Within other plantareas insidecontainment (hazard areas), the separation meets one ofthe 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 horizontai separation is 6 inches for raceways containingonlyinstrumentation 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 vertical separation is 12inches and the minimum horizontal separationis 6 inches between a conduit and an open configuration for low-voitage 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 thatinvolve exclusively limited energy content cables(instrumentation and control), the minimum vertical separationis 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 is1 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)Theminimum vertical separation is1 inch andthe minimum horizontal separation is1 inch for configurations with a non-safety conduit anda freeairsafety cablewith low-voltage power cables and below.

ITAAC Completion Description Multiple ITAAC are performed toensurethat 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 1Ecables and raceways that route non-Class 1E cables inside containment to confirm that physical separation between raceways that route Class 1E cables of different divisions and between raceways that route Class 1E cables and racewaysthat route non-Class1Ecables meet the required separation distances.

The Ciass 1E cables and raceways and non-ClassIE cables insidecontainmentare designed to be appropriately separated in accordancewith APP-GW-E1-001 (Reference 1). Installation Specifications provided tothe constructor identify the separation criteria, consistent with the ITAAC commitment.

U.S. Nuclear Regulatory Commission ND-18-0413 Enclosure 1 Page 4 of 5 Class 1E electrical cables and raceways are installed in accordance with design drawings, installation specifications issued for construction and work package requirements. Completed raceway installation, in-progress cable installation, and completed cable terminations are inspected to ensure the separation installation specifications are satisfied. Inspections are 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 withthe 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 inside containment (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 vertical separation is 12 inches and the minimum horizontal separation is 6 inches for raceways containingonlyinstrumentation 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 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 content cables (instrumentation and control), the minimum vertical separation is 1 inchand the minimum horizontal separation is 1 inch.
5) Forconfigurations that involve an enclosed raceway and an open racewaywith low-voltage power cables, 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 IT/\\AC and are addressed within the scope of ITAAC 3.3.00.07d.iii.a (Enclosure 2), IT/WC 3.3.00.07d.iv.a(Enclosure 3), or \\TAAC 3.3.00.07d.v.a (Enclosure 4).

U.S. Nuclear Regulatory Commission ND-18-0413 Enclosure 1 Page 5 of 5 The Cable Separation Reports (References 3 and 4) are available for NRC inspection as part of the Unit3 and Unit 4 ITAAC 3.3.00.07d.ii.a Completion Packages (References 5 and 6, respectively).

List of ITAAC Findings In accordance with plant procedures for ITAAC completion, Southern NuclearOperating 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 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.ii.a Completion Package 6.

Unit 4 ITAAC 3.3.00.07d.ii.a Completion Package 7.

NEI 08-01, "IndustryGuideline for the ITAAC Closure Process Under 10 CFR Part 52"

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