ML20203A517

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Rev 3 to Quality Instruction QI-016, Reinsp of Cable Trays/I-E-CATY
ML20203A517
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 04/03/1986
From: Bajada E, Hansel J, Patterson A
EVALUATION RESEARCH CORP.
To:
Shared Package
ML20202J051 List: ... further results
References
QI-016-01, QI-16-1, NUDOCS 8607170264
Download: ML20203A517 (20)
v • d • e


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EVALUATION RESEARCH CORPORATION NO b@

&j COMANCHE PEAK RESPONSE TEAM i

QUALITY INSPECTION FOR ISSUE-SPECIFICsACTION PLAN VII.c INSTRUCTION NO.: QI-016 REVISION: 3 EFFECTIVE DATE:

s e

REINSPECTION OF CABLE TRAYS /I-E-CATY O

Prepared by: ()N Date: 3 ~ 2- f - F G

~

Approved by: /IM '

ME/J ' ' Date: 3' Issue Coordinator -

1 Approved by: . (. / h __

Date: Mfs/86 On-Site QA Represen tive Approved by: _n e [ Date: '/'/ j[.,

QA/ Revieit Team Leader 8607170264 860711 PDH ADOCK OD000445 A PDR

. QI-016 Rev. 3 1.0 PURPOSE This procedure provides instructions and accept / reject criteria to be applied when performing reinspections of the cable tray.

2.0 APPLICABILITY This procedure applies to all the samples selected for reinspection from the cable tray population at Comanche Peak Unit 1, 2 and areas common to both units. The population is described in the Population Description for Cable Tray.

3.0 REFERENCES

3.1 CPP-009, " Performance of Reinspection and Documentation Reviews."

3.2 2323-El-1701, Rev. 11 " Conduit and Cable Tray Legend General Notes."

,(

3.3 2323-El-1701-01, Rev. 1, " Conduit and Cable Tray General Notes and Typical Details."

() 3.4 2323-El-1702, Rev. 7. " Conduit and Cable Tray Typical Details."

3.5 2323-El-1702-01, Rev. 8, " Conduit, Cable and Miscellaneous Details."

3.6 2323-El-1702-02, Rev. 2, " Cable and Raceway Separation Typical Details."

3.7 Description Memorandum QA/QC-RT-220, Revision 1, dated 07/31/85 delineating documentation used in the development of this procedure including specific sources for attributes and exclusion.

4.0 GENERAL 4.1 Reinspections are performed and documented in accordance with established project procedures and instructions. This instruction establishes the attributes and accept / reject criteria for reinspections of cable tray. Reference 3.1 addresses the method used to perform reinspections and to document and process the results.

4.2 Cable tray sections to be inspected are identified by node points and include r.he section of tray bounded by the adjacent O' node points. Cable Tray grounding is not within the inspection boundary.

2

a .

QI-016

. Rev. 3 5.0 INSTRUCTION (J)

5.1 Cable Tray Identification end Color Coding Using the information in Reference 3.1 and this section, perform the reinspections on the items in this population and document the results of the reinspection on the checklist (Attachment 6.5). s Mansuramants shall be made using standard inspection tools.

Attachment 6.8 provides a list of standard inspection tools and their correspond 1ng codes. Record on Attachment 6.9 the tool code, serial number and calibration due date of each tool used to measure dimensions, where applicable.

5.1.1 Verify that each tray identification marker on the tray is correctly identified as shown on the tray segment drawings.

5.1.2 Verify that the last two numerical digits identifying the node points have been added to the same side of the tray as the tray identification number where shown on e che drawings.

5.1.3 Color Coding w

s

) Verify the tray has the correct color code as shown in Reference 3.2.

NOTE: Adhesive backed markere are acceptable for use only outside containment.

5.2 Damage Verify that there is no apparent damage, or any visible burrs or sharp edges that could present a cable hazard.

5.3 Configuration Verify the configuration of the cable tray is in accordance with the drawings and the typical details referenced in 3.2, 3.3, 3.4, 3.5 and 3.6.

Acceptance criteria:

i 5.3.1 Tray is correct size as shown in Attachment 6.6.

( 5.3.2 Tray has correct routing and arrangement.

5.3.3 Attachments are installed'. Attachments may consist of covers, splice plates, side rail extensions, and reinforcements. Splice plates are to have a minimum of

( -- 6 bolts unless otherwise specified on the drawings.

3

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QI-016 Rev. 3 m

(J i 5.0 INSTRUCTIO,N (Cont'd) 5.3 Configuration (Cont'd) 5.3.4 Welded splice plates, rung repairs, and any other weld.

identified in the inspection package are in accordance with Section 5.7. Rung repairs are rungs added adjacent to cable tray splices in order to maintain a maximum rung spacing of 9 inches. Rung repairs can be identified by a welder ID symbol stamp or veld inspection sticker next to the rung weld, or by the following three conditions existing together:

The spacing between the last two rungs of the tray section adjacent to the splice is different than the spacing between factory welded rungs. Factory installed rungs are spaced 6" +0 -1/8" center to center.

The original galvanized coating is not visible on the weld metal at both ends of the rung, i.e., the weld is completely coated i with Galvanox or equivalent, or the bare weld metal is exposed.

A gap cover plate has not been installed Og across the spliced joint.

5.3.5 For ladder type trays, the maximum rung spacing is 9 inches at all tray fittings and splices.

5.3.6 All Bolts are properly installed. This is verified with the following criteria:

All bolts are hand tight.

Vendor splice plate bolts are to have a nut and a lecking device.

t

! For bolts that protrude into the tray, verify

! that the exposed end inside the tray does not

< present a cable hazard or if the tray has a l cover, verify that the threaded end of the i bolt is on the outside of the tray.

5.4 Clearance i Verify clearance between cable tray and piping per the I

following:

7- g 6" minimum clearance shall be maintained between cable g'-] tray and Class I and II pipe including insulation, unless otherwise noted on the drawings.

I

! 4 I

s .

Q1-016 Rev. 3

(-~s) y 5.0 INSTRUCTION (Cont'd) 1" clearance shall be maintained between cable tray and non-safety related and Class III piping. 1" minimum is to be maintained from the outside of the pipe or insulation.

NOTE: Class I or II piping can be identified by the mechanical I.D.

Tags. Typical Class II spool piece tag number: 2"-CS-1-8-2501R-2 (last numeral is Class). If tag cannot be seen the pipe support number or a valve number taken from an in-line valve may be used to determine class. Typical Class I support tag number: SI-1-102-008-C41K (last numeral is class). Support will be the same or higher Class as the pipe it supports.

5.5 Fire Stops When trays pass through floors and where trays pass through **

walls designated as fire walls, check for the presence of fire barrier material.

5.6 Separation criteria

}

Separation distance between trays having different trains or channels shall be 3-feet horizontally and 5-feet vertically in general plant areas and 1-foot horizontally and 3-feet vertically in the cable spreading area and control room.

Where separation as described above has not been maintained between different train or channel trays, verify that solid bottom trays, covers, or barriers have been installed and that a minimum of 1-inch has been maintained between the trays (see I Attachment 6.1).

l i

The minimum separation distance between trays and conduit shall be as defined below:

a. Between a tray and any conduit of a different train or channel, separation shall be in accordance with Attachment 6.2.

l This does not apply to Train "C" conduit and N.I.S.

l conduit (raceway functions 6R, 6B, 6W, and 6Y.)

b. Train "C" conduit including non-scheduled conduits (lighting, communications, fire detection, etc.) shall maintain a minimum of 1-inch from the top, bottom or side of any tray.

O 5

I* . .

. QI-016 Rev. 3 p)

(~- 5.0 INSTRUCTION (Cont'd) l 5.6 Separation Criteria (Cont'd)  !

c. Tray to N.I.S. conduit (raceway functions 6R, 6B, 6W, and 6Y) shall be in accordance with Attachment 6.3.

The minimum separation distance between trays and cable shall be in accordance with Attachment 6.7.

5.7 Welding Prior to the start of inspection ensure that welds are clean of any foreign material which would impede an adequate visual inspection. Coatings need not be removed unless the inspector feels that due to excessive and/or uneven coating application an adequate inspection cannot be performed. The Inspector shall then contact the Level III and with his concurrence the coating may be removed.

When it is necessary to measure weld dimensions during the ,

course of an inspection, such dimensions should be determined as accurately as is practically achievable using standard weld inspection tools.

A The acceptance criteria for this section applies in all cases

() unless otherwise specified on the drawings.

5.7.1 Location

- Verify that the weld configuration and location are as specified per the detailed drawing. The type of weld (welded splice plate, rung repair, etc.) and its location should be recorded.

5.7.2 Weld Size Verify that the weld size meets the requirements of the j applicable drawings except that a) fillet welds may be undersized to a maximum j of 1/16" provided that the undersized i portion (s) do not exceed 1/4 of the weld length I

b) oversized fillet welds shall be acceptable if j the oversized weld does not interfere with mating parts.

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f.-

QI-016

. Rev. 3 5.0 INSTRUCTION (Cont'd)

(

5.7 Welding (Cont'd) 5.7.3 Weld Length Verify that the weld length complies with the referenced drawing with the following allowances:

a. Weld length Specified on Permissible Drawing Underlength

< 3" 1/8" 23" 1/4"

b. Weld lengths may be longer than specified.
c. The spacing of intermittent welds may vary within 1" of the location specified on the drawing. ,.

5.7.4 Fusion Verify that if any incomplete fusion is visible it does O not exceed 1/4-inch in length.

5.7.5 Cratirs Verify that the weld size is met on all welds with underfilled craters. Craters outside the specified weld length are irrelevant, provided there are no cracks visible through the coated surface, or on the uncoated surface if the weld is not coated.

5.7.6 Weld Profile Verify that the weld profiles are acceptable per l Attachment 6.4.

5.7.7 Undercut l

a. For auxiliary steel:

l When the weld is welded on both sides and the l undercut is in the same plane, the following undercut is permitted:

a. 1/32-inch for 1/2 the length of the
  • total

() weld.

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QI-016

s. Rev. 3 s,

5.0 INSTRUCTION (Cont'd) 5.7 Welding (Cont'd)

b. 1/32-inch for 1/4 the length of the
  • total weld and 1/16-inch for 1/8 the length of the
  • total weld.
  • Total weld equals the cumulative length of both sides.

For all other welds the permitted undercut is:

a. 1/32-inch for the full length of the weld,
b. 1/32-inch for 1/2 the length of the weld and 1/16-inch for t1/4 the length of the weld,
b. For sheet metal (cable tray material) undercut shall not penetrate the thickness of the material. '

5.7.8 Porosity

/~ ~ Considering that only surface porosity whose major

\s surface dimension exceeds 1/16" shall be considered relevant verify the.following:

a. The sum of the diameters of porosity do not exceed 3/8" in any linear inch of weld.
b. If 4 or more pores are aligned the edge to edge separation of the pores shall exceed 1/16".

i l 5.7.9 overlap If overlap is present and fusion canr.ot be determined, verify that the overlap does not exceed 1/4-inch in .

length.

5.7.10 Surface Slag Verify that the major surface dimension of the slag does not exceed 1/8" or 1/4" for any isolated surface slag. (Slag is considered to be isolated when it does not occur more frequently than once per weld or more than once in a 3" weld segment.)

5.7.11 Weld Cracks The weld shall not have any visible cracks.

F.

QI-016 Rev. 3 i

5.7.12 Welders ID symbol O~- +

When the weld is marked with the welders ID symbol, record the ID symbol. The welders ID may be either stamped on the tray or it may be written on an adhesive tag stuck to the tray. If an adhesive tag is placed next to the weld, identify and record all the data. If an 'E' number is marked on the weld, record this also. 7 6.0 ATTACHMENTS 6.1 TRAY TO TRAY SEPARATION 6.2 CONDUIT TO TRAY SEPARATION 6.3 TRAY TO NIS CONDUIT SEPARATION 6.4 FILLET WELD PROFILES 6.5 CHECKLIST e.

6.6 CABLE TRAY SIZES 6.7 TRAY TO CABLE SEPARATION 6.8 INSPECTION TOOLS AND CODES 6.9 INSPECTION TOOLS USED O

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  • Attachmsnt 6.1 QI-016 Rev. 3 x Page 1 of 1 TRAY TO TRAY SEPARATION

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23 SOLib BOTTOM CAS6L TEAY NIM *A*

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C A 'LLE TWAY a -

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DETAll 50 TRAY CROSS.va ofMER(TEA.ms C4Mmg&LE CA TY*CAA DETAu. FC4 W ERTICAL SEsa#AffCN atQuiet,Ms.NTm oF A EDUMbANT SY9 TEM (TRAIN S cAggg mg 08F CMAMw&h6)CASLE TRAYS.

w SOLIO toTTOM CARLK. TRAYS WITM SOLib COVER $

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CE%IL 51 TYPICAL DETA#L,pon Hom:20flTAL st8%RATirA REawaggangrs es g gtwNaApr SYSTew (T A Nai CA CHANNELS)(ASLETRAu I

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Attachment 6.2 QI-016 Rev. 3 Page 1 of 2 CONDUIT TO TRAY SEPARATION rRAIN'A' CASLE TEA'] 310 se 6EWERL (a)PL ANT A%LA r u,N *n* to*IN CA&LE

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FRCHT REA 08 % ERTICAL CA&L.E TRAY us,, anNnna.u '

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>% b %y DETAIL 53 DETAl w , CAL. o.rA,g.l :ee. * & 55 geg3=g h*^* hihat .

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. Attachm:nt 6.2 QI-016 Rev. 3 CONDUIT TO TRAY SEPARATION

[V} (Cont'd) ,

' Ta Ai N 'A' CA&LETRAT g SOLib COVEA

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s 47 Tv,, CAL DETA.ll m uTieN DETAIL 48 TYPsCAL LETA4., FOR SEPAGATiCN stautREME*4TS C RELuNSANT Sv$7EM(TRAWS RE2WlEE.MENTS CC' REOUNLAh? SYSTY.me(TEAeHS CE (M Amew&LS) VERT 1 CAL C4JNDUlf C 409b44 CR CHA%MELS) **CRIBCNTAL. CONbutT CEC 5sa NG HCtaEGNTAL CABLE TEAY MCRIECMTAL CABLE. T RAY l

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Attachment 6.3 QI-016 Rev. 3 Page 1 of 1

[_s TRAY TO NIS CONDUIT SEPARATION .

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POR CAgLE TWAft WeTi+ ecua moTTOM ALL ARSAS e) b): @m'M. sc A CAats Thars WITH SOUD CMER ,

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CONDUIT WL,W,66 CEGY)

I 5 DETAll GOA DETAIL boc TYPTCAL DETAIL pCE SEPARATWu TYP1 CAL bETAl( POE SEP&EATION RE40lEEMEMft op ofl4EE. TH AN E. Sku $YSTdM O REQUtR&MENTS OF NLt CChoutT AND 6.9KV o A AM E TE 3s b

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  • d}!$}6y g gg, cm 6c DETAtt GOS DETAIL 600 TYPICAL citaiL pc4 SEP ARAT10N TYsNCAL DETAIL FCR SS.PARAT1cM 8tE301stEMENT5 CF EAPOSED sett CA&LE (NEAR REAutREMEJtTS 08 NIS CC**wir auP4 MIN 4 P$sTALLE4.

PsastTRATIChb) AND o twER THAM 6.9 KV STSTEma TO OTHER TMAM 6.9 KV SvtTEM RACEWAY RAC M Y QETAIL 60 TY#tCAL DETA4LS sue veRftd.AL Aadh HORtZ4NTAL S&PmAATICH EL4nW44 noENTS Off MI$

SYSTEM. INSTALLAnome CF 7:R& e aERS wall NOT A&auCE Tw L seemenues as anausN

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' Attachment 6.4 QI-016 Rev. 3 O. FILLET WELD PROFILES

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I l\ N g Do not mehsure 3

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I Acceptable Convexity v^---

Acceptable concavity

Identification and Color Code 5.1.1 ^ ( A

^ 5.1.2 (V) 5.t.3 (m NV) y 5.2 Damage 5.2 *

  • 5.3 Configuration 5.3.1 5.3.2 b\

5.3.3 5.3.. W~

5,3.5 5.3.6 5.4 Clearance 5.5 Fire Stops PREPARED BY: APPROVED BY DISCIPLINE ENGR. DATE LEAD DISCIPLINE E!!GR. DATE INSFECIED SY: .

APPROVED BY:

g. iN5 F EGO R DaIC LEAD I!iSPECTOR DATE g CPPs?07,lA, Revision 0

. Attachmtnt 6.5 QI-016 Rev. 3

/ CHECKLIST (Cont'd)

COMANCitE PEAK RESPONSE TEAM C11ECK!.1ST e P0fCLATION DESC VERIFICATION PKG NO.

CABt.E TRAY I-E-CATY- PACE L OF 1 VERIFICATION

^

ACCEPT REJECT DATE 5.6 Separation Criteria -

5.7.1 Location b

'.7.2 Wald Size

, - A 5.7.3 Veld Length (\

5.7.4 Fusion /\

5.7.5 Craters A

,es 5.7.6 Weld Profiles N N, 5.7.7 Underent 5.7.8 Porosity m w( x A/

5.7.9 overlap 5.7.10 Surface Slag v

5.7.11 Wald cracks 5.7.12 Welders ID Record Symbol , Welders ID l

l l

=

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l CPP-007.18, Revision 0 2

f.

e Attachmsnt 6.6 QI-016 Rev. 3

/ Page 1 of 1

\ CABLE TRAY SIZE Attribute 5.3.1 requires verification of the correct tray size. Tray size is determined from the mark number shown on the applicable cable tray plan. This mark number contains information on tray size and the configuration of the tray section (tee, bend, etc.)

The list below is compiled from the Electrical Bill of Materials. It shows the dimensions for cable tray using the first part of the mark number. Two exceptions to this list are Mark Numbers T1W and T11W which are adjustable splice plates that are used with all tray sizes.

Mark Nominal Nominal Number Tray Width Tray Height Drawing T1 36" 4" 2323-El-1800-371, Rev. 6 T2 30" 4" 2323-El-1800-375, Rev. 7 T3 24" 4" 2323-El-1800-380, Rev. 7 T4 18" 4" 2323-El-1800-386, Rev. 7 4" '

TS 12" 2323-El-1800-392, Rev. 7 T7 6" 4" 2323-El-1800-399, Rev. 6 T8 30" 6" 2323-El-1800-403, Rev 4 T9 36" 6" 2323-El-1800-405, Rev. 3

(-' Til T12 36" 30" 4"

4" 2323-El-1800-407, Rev.

2323-El-1800-411, Rev.

6 7

T13 24" 4" 2323-El-1800-417, Rev. 6 T14 18" 4" 2323-El-1800-423, Rev. 7 T15 12" 4" 2323-El-1800-429, Rev. 7 T17 6" 4" 2323-El-1800-435, Rev. 5 T18 30" 6" 2323-El-1800-438, Rev. 4 T19 36" 6" 2323-El-1800-442, Rev. 5 T24 18" 4" 2323-El-1800-461, Rev. 1 T25 12" 4" 2323-El-1800-462, Rev. 1 T30 MISCELLANEOUS HARDWARE 2323-El-1800-467, Rev. CP1 T33 24" 6" 2323-El-1800-445, Rev. 3 T34 18" 6" 2323-El-1800-447, Rev. 3 T35 12" 6" 2323-El-1800-448, Rev. CP1 i T43 24" 6" 2323-El-1800-453, Rev. 3 T44 18" 6" 2323-El-1800-455, Rev. 3 T45 12" 6" 2323-El-1800-457, Rev. 3 T47 6" 6" 2323-El-1800-459, Rev. 3 l

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. Attachment 6.7 QI-016 Rev. 3 (d \

TRAY TO CABLE SEPARATION Page 1 of I '

up To fEHEL A50VE THRu FL4CR CPEN'6 TR AIN 'A' C A BL E$ 7 g4,9 g _

CABL E TRAY f

u 1 O GENERAL a)3t *lN j$csNe GENERAL PLANT AREA PLANT AREA b) i to* lN CA BLE b) 3'-0 *N CARE SPREADING AREA SPREADING AREA c) I' MIN. #1TM CABLE c)i eu;y,.WITie CABLE W EAPPED IN FIRE WRAPPED IN FIRE RETARDANT MATEth AETARDANT MATTEiAL (IHR. RATIN4) S et (iwR RATING)Ses d ore 9 /

g s MOTE 9 i n

r T-u m frR At- - F (v) \ 's) S to"iN GENERAL PLANT AREA

b)l'-O*lN CABLE SPR EADlW= AREA DETAI L 56 TYPICAL DE.TAlt FOR SEPARATION R.EQUIREMENTS OF REDUNDANT SYSTEM (TRAINS OR C.HANNE.LS) CABLE RUNNING NEAR OTHER SYSTEM CA&LE TRAY.

9),58FARATlON SA22iER MATERJAL (FLAWKtf) sNAu. Net as useo ou Are pese PawsR easca I

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  • Attachment 6.8 QI-016 l Rev. 3 Page 1 of 1 INSPECTION TOOL AND CODES CODE TOOL AF ANGLE FINDER BL BUBBLE LEVEL BS BOROSCOPE BW 1/32", 1/16", 3/32", 1/8" WIRE CG CONTOUR GAGE DF DRY FILM THICKNESS GAGE FG FEELER GAGES FL FLASHLIGHT FM FIBRE METAL FILLET GAGES GG GAL FILLET GAGES e-HL HI-LOW GAGE MG MAGNIFYING GLASS MI MICROMETERS O MM MIRROR MN MAGNET PB PLUM BOB PR PROTRACTOR SC SLIDE CALIPER SR 6" RULE ST STEEL TAPE MEASURE TG TAPER GAGE TW TORQUE WRENCH UD UNDERCUT CAGE (DIAL)

UP UNDERCUT GAGE (PIT)

! VC VERNIER CALIPER l VT INSPECTION O

Attachment 6.9 s QI-016 g

g Rev. 3 Page 1 of 1 INSPECTION TOOLS USED VERIFICATION PACKAGE NO.

EQUIPMENT MARK / TAG NO.

ATTRIBUTE TOOL CODE (S) SER # CALIB. DUE DATE f

! 3.1 Tray Size 3.5 Rung Spacing 4 Clearance

. 5 Separation Criteria I

7.1 Weld Location i

7.2 Weld Size 7.3 Weld Length 7.4 Weld Fusion 7.5 Weld Craters 7.7 Weld Undercut 7.8 Weld Porosity l 7.9 Weld Overlap i 7.10 Weld Slag i

O INSPECTOR DATE

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