ML20136B354

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Rev 6 to Instruction QI-QP-11.3-40, Class 1E Electrical Post-Const Verification
ML20136B354
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 05/18/1983
From:
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
Shared Package
ML20136A539 List: ... further results
References
FOIA-85-59 QI-QP-11.3-40, NUDOCS 8601020559
Download: ML20136B354 (9)
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Text

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h TEXAS UTTUTIES GENERATING CC.

ggR REVISICN PAGd QI-QP-11.3-40 6

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1.0 REFERENCES

1-A CP-QP-11.3, " Electrical Inspection Activities" 1-B QI-QP-11.3-26, " Electrical Cable Installation Inspections" 1-C CPM-9.1, " Control of Nonpermanet Materials" CP-QP-18.0, "Insp etion Report" 0HI3 1-0 CP-QP-16.0, "NonconformancesHR !Nf 0Rige OH 1-E:

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This Quality Instruction supplements Reference 1-A and is established to verify the adequacy of installed Class 1E equipment and systems at Comanche Peak Steam Electric' Station.

3.0 INSTRUCTION The frequency of inspection efforts shall be as directed within this instruction, unless directed in writing otherwise, by the Quality Assurance / Quality Control General Supervisor.

This instruction shall be performed upon completion of construction activities (i.e., room or area).

All Class IE and non-Class 1E cable, raceway and equipment installations within the scope of Reference 1-A shall be inspected and documented in accordance with this Instruction.

A craft accompanied post construction verification walkdown shall be conducted by the Electrical QC Inspectors to detennine~ the status of items.

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Where cable tray, cable or other electrical equipment is covered or coated, the documentation initiated by the original inspections shall be sufficient.

Discrepancies noted during the Post Construction Verification Walkdown shall be documented on Attachment 1.

After all discrepancies' noted on Attachment have been resolved, they shall be reinspected and documented on an Inspection Report, Attachment 2 and/or 3.

In addition, the QC Inspector shall attach the applicable punchlist to i

the Inspection Report.

3.1 POST CONSTRUCTION VERIFICATION 3.1.1 Verify Cable Tray The QC Inspector shall perform a visual inspection of all

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raceways to ensure that the trays are free of damage. Damage inspections shall consist of.. but are not limited' to, the following:

a.

Cable tray shall be free. of burrs, rough edges, or foreign material, b.

Damage to Galvanized surfaces is to be repaired by application of Galvanox or similar approved product.

c.

Proper workmanship has prevailed to ensure over-all quality product free of surface damage, warpage, cent side rails, etc.

d.

All cable pulling aids have been removed (i.e., rollers fish tape, tape rope, etc.).

3.1.2 Verify Conduit The QC Inspector shall perfonn a visual inspection, to the maximum extent possible without disassembly, of conduit raceways to ensure conduit is free from da' mage.

This inspection shall consist of, but is not limited to, the following:

a.

Conduit shall be free from burrs, rough edges or foreign materials.

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Conduit bends shall not show excessive flattening or Interruption of the smooth bore of the conduit.

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NOTE:

Excessive flattening is defined as that amount of flattening which reduces the conduit outside diameter by 251.

c.

Damage to Galvanized surfaces shall be repaired with Galvanox or an engineering approved equal.

d.

Bushings, fittings, and hardware shall be in place and secure.

e.

All cable pulling aids have been removed (i.e. fish tape, tape rope, etc.).

f.

Conduit cover, junction box, pull box and termination box covers and gaskets have been installed.

i 3.1.3 Verify Cable Installation The QC Inspector shall perfonn a visual inspection of cable installations to ensure cables are free of damage.

This inspection shall consist of, but is not limited to, the following:

a.

Cables shall be free fras damage and debris, b.

Cable bend radii have not been violated.

c.

Cables are trained and. properly secured with cable ties, d.

Power cable spacing has been maintained in accordance with Reference 1-8.

e.

Cable slack of 2 inch minimum is provided at transition points between cable tray sections at different elevations and at conduit entries to cable trays and between category I structures.

f.

Cable installed in trays shall be below side rails.

3.1.4 Verify Equipment Installation I

The QC Inspector shall perform a visual inspection to ensure I

that the installed equipment has not sustained damage and that i

good and proper workmanship has prevailed. This inspection shall consist of, but is not limited to, the following:

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Equipment has sustained no visible physical damage.

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Covers shall be installed and conditions of gasket j

materials have not deteriorated or sustained damage.

d c.

Cables shall be properly trained, bundled and tied with ty-raps in a neat and orderly manner.

d.

Conductor insulation free from damage.

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e.

Teminal lugs at tennination points tight and secure.

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Equipment is clean and free fran debris.

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Equipment filters installed in vent openings where required by drawing.

h.

Non pennanent conditions have been clearly marked in g-accordance with Reference 1-C.

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i 3.2 INTERNAL WIRING SEPARATION l

Separation between field run redundant Class 1E cables and Class IE/Non-Class IE cables within equipment shall be maintained in accordance with the inquipment specification.

If the specification gives no separation requirements, the minimum separation distance between redundant Class IE and Class IE/Non-Class 1E cables shall be greater than or equal to 6 inches.

In cases where the above separation criteria cannot be maintained, barriers shall be installed between the cables.

Barriers used for separation will be as.follows (See for typical examples):

1.

Metallic conduit; including Servicair Company FC 33 flexible conduit.

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- Two sheets of fire retardant material separated by a minimum of 1s" of air space or thennal insulating material.

3.

A single barrier with a 1" maintained air space or thennal insulating material between the components or devices and the barrier.

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INSTRUCTION ISSUE REVISION PAGE NUMSER DATE TEXAS UT1UTIES GENERATING CO.

QI-QP-11.3-40 6

5 of 9 gy 7 g g Redundant Class 1E circuits shall enter in separate apertures and' tenninate on separate tenninal blocks or

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. connectors as shown on G&H design drawings.

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Power supply feeds to instrument and control room distribu-tion panels shall be installed in solid enclosed raceways as shown on G&H design drawngs. (Example: conduit)

The following cabinets have been analyzed and are exempt from the separation requirements; however, equipment that provides for channel or train separation shall be utilized

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when available.

Note:

TBX for Unit 1 and TCX for Unit 2.

NIS Cabinets T-X-NIELCA-01 (4 Cabinets)

Solid State Protection System T-X-ESELSP-01 (Logic & Output

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Cabinets only)

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Solid State Protection System T-X ESELTC-01 (Test Cabinets)

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Upgrade Protection &

Surveillance T-X-XIELSS-50 Process Racks

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Protection channel

wiring, safety-train
wiring, and Non-safety train wiring within panels -1PC1, IPC2, IPC3, IPC4 will be in different wire bundles. These bundles will be separated to the maximum extent practicable.

3.3 00CtMENTATION Inspection Reports shall be processed in ~accordance with Reference 1-D.

3.4 NONCONFORMANCES Nonconfonnances shall be documented and identified in accordance with Reference 1-E.

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