ML20136B232

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Rev 5 to Instruction QI-QP-11.3-40, Class 1E Electrical Post-Const Verification
ML20136B232
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 04/22/1983
From:
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
Shared Package
ML20136A539 List: ... further results
References
FOIA-85-59 QI-QP-11.3-40, NUDOCS 8601020482
Download: ML20136B232 (9)
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[FERENCES 1-A CP-QP-11.3, " Electrical Inspection Activit ikUon Inspections" 1-B QI -Q P-11.3-26, " Electrical Cable 1-C CP% 9.1, " Control of Nonpe erials" l'-0 CP-QP-18.0, "Inspecti 1-E CP-QP-16.0,"Nonco nces" HISTORICAL.FILE 2.1 PURPOSE AND SCOPE 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 8

within this instruction, unless dis ected in writing otherwise, by the Quality Assurance / Quality Control General Supervisor.

This ins truction shall be perfonned 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 craf t accompanied post construction verification walkdown shall be conducted by~ the Electrical QC Inspectors to determine the status of items.

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REVISION PAGE TEXA8 UTIUTIES GENERATING CQ, QI-QP-11.3-40 APR 2 21El 2 of 9 5

1 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 Attachent 1.

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

In addition, 1

the QC Inspector shall attach the applicable punchlist to the Inspection Report.

3 3.1 POST CONSTRUCTION VERIFICATION 3.1.1 Verify Cable Trav The QC Inspector shall perform a visual inspection of all 4

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raceways to ensure that the trays are free of damage. Damage inspections shall consist of, but are not listted to, the 4

q following:

a.

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

i 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, bent side rails, etc.

h 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 perform a visual inspection, to the maximum extent possible without disassembly, of conduit raceways to ensure conduit is free from damage.

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

a.

Conduit shall be free from burrs, rough edges or 4

foreign materials.

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Conduit bends shall not show excessive flattening or l

Interruption of the smooth bore of the conduit.

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Excessive flattening is defined as that amount of flattening which reduces the conduit outside diameter by 25%.

I c.

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

3 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 temination box covers and gaskets have been installed.

4 I

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

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

a.

Cables shall be free from damage and debris, b.

Cable bend radit 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 2

elevations and at conduit entries to cable trays and 1

between category I structures.

f.

Cable installed in trays shall be below side rails.

3.1.4,

Verify Eouioment Installation The QC Inspector shall perfonn a visual inspection to ensure 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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a.

Equipment has sustained no visible physical damage.

I b.

- Covers shall be installed and conditions of gasket i

esterials have not deteriorated or sustained damage.

1 c.

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

i d.

Equipment is clean and free from debris.

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e.

Equipment has filters installed in vent openings.

I f.

Non pemanent conditions have been clearly ma-ked in i

accordance with Reference 1-C.

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3.2 INTERNAL WIRING 1

2 Separation between field run redundant Class 1E cables and L=

Class 1E/Non-Class 1E cables within equipment shall be i

i maintained in accordance with the equipment specification.

If the specification gives no separation requirements, the minimum separation distance between redundant Class 1E and l

Class 1E/Non-Class 1E cables shall be greater than or equal i

to 6 inches.

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

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

1.

Metallic conduit; including Servicair Company FC 33 flexible conduit.

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2.

Two sheets of fire retardant material separated by a minimum of 1s" of air space or themal insulating i

material.

3.

A single barrier with a 1" maintained air space or themal insulating material between the components or i

devices and the barrier.

i Redundant Class 1E circuits shall enter in separate i

apertures and teminate on separate teminal blocks or l

connectors as shown on G4H design drawings.

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INSMUCTION 188UE REVISION PAGE TEXAS UTIUTIES GENERATING CO.

I QI-QP-11.3-40 5

APR 2 g g 5 of 9 Power supply feeds to instrument and control room distribu-tion panels shall be installed in solid enclosed raceways j

as shown on G&H design drawngs (Example: conduit)

The following cabinets have been analyzed and are exempt' from the separation requirments; howeve.r equipment tha t provides for channel or train separation shall be utilized when available.

Note:.

TBX for Unit 1 and TCX for Unit 2.

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

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

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Cabinets only)

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

Upgrade Protection &

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Surveillance T-X-XIELSS-50 Process Racks T-X-XIELRX-01 T-X-XIELRX-02 T-X-XIELRX-03 T-X-XIELRX-04 Protection channel

wiring, safety-train
wiring, and Non-safety train wiring within panels 1PC1, 1PC2, IPC3, IPC4 will be in different wire bundhs. These bundles will be separated to the maximum extent practicable.

3.3 00CUMENTATION Inspection Reports shall be processed in accordance with Reference 1-0.

  • 4 NONCONFORMANCES Nonconformances shall be documented and identified in accordance with Raference 1-E.

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