ML20203A241

From kanterella
Jump to navigation Jump to search
Rev 2 to Quality Instruction QI-031, Reinsp of Containment Liner & Tank Stainless Steel Liner
ML20203A241
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 02/21/1986
From: Hansel J, Patterson A, Ross G
EVALUATION RESEARCH CORP.
To:
Shared Package
ML20202J051 List: ... further results
References
QI-031-01, QI-31-1, NUDOCS 8607170199
Download: ML20203A241 (7)
v • d • e


Text

r- - _

e w

Paga 1 of 5 f~

4 j EVALUAIION RESEARCH CORPCRATION CONTROUI)CO?Y CONTR0L NO. _ 01=-@

COMANCHE PEAK RESPONSE TEAM QUALITY INSTRUCTION FOR ISSUE-SPECIFIC ACTION PLAN VII.c INSTRUCTION NO: QI-031 -

REVISION: 2 EFFECTIVE DATE: 02/21/86

,O REINSPECTION OF CONTAINMENT LINER AND TANK L) STAINLESS STEEL LINER Prepared by: (I J

C Date: II !b Approved by: IW *

    • VS - Date: E!/I![I Issue Coordinator Approved by: , Dates j-Ad -M On1 Site QA Representative Approved by: 8 Date: d f>

' /

[$

QA/ evi'ew Team Eeader j

i 0607170199 060711 0 PDR ADOCK 0000

c _

o

,QI-031 l' Rev. 2 1.0 .KRPOSE This instruction provides the methods and accept / reject criteria for the performance of reinspection of the Containment Liners and Tank Stainless Steel Liners.

2.0- APPLICABILITY ,

This quality instruction applies to the requirements of Action Plan VII.c in the reinspection of the safety-related attributes of containment and tank stainless steel liners. It applies to the samples selected from the liner population in Units 1 and 2 which has been QC accepted.

3.0 REFERDICES 3.1 Memorandum QA/QC-RT-293 to A. A. Patterson, providing basis for inspection requirements, including specific sources for attributes and exclusions.

3.2 CPP-009, " Performance of Reinspections and Documentation /

Reviews."

4.0 GENERAL Reinopections are performed and documented in accordance with established CPRT instructions. This instruction establishes the attributes and accept / reject criteria for the reinspection of the containment and tank stainless steel liners. Reference 3.2 addresses the method to perform and document the reinspection.

4.1 Responsibilities 4

4.1.1 QA/QC Discipline Engineers The QA/QC Discipline Engineers prepare the Quality Instruction delineating reinspection requirements and

. attributes.

l 4.1.2 QA/QC Inspectors l

1 QA/QC Inspectors perform reinspection / verification in

! accordance with this inspection procedure and record l results and deviations.

lO l

2

c QI-031

'd Rev. 2 4.( -1AL (Cort'd)

'. Policy Act!.vities performed under this procedure shall ccnform to the policies contained in the latest Comanche Peak Response Team

. Program Plan and Issue-Specific Action Plan VII.c.

5.0 INSTRUCTION Using the information below, perform the reinspections.on the items in this population and document the results on the checklist (Attachment 6.1):

5.1 Containment Liner Reinspection A1 Base Material Local Contours The containment liner base material located 10 feet either side of the sample weld, excluding penetrations, embedment plates, beam seats, and overlay plates, is to be reinspected for local contour deviations. The liner plate located within 10 feet around either penetrations, embedmonts, beam seats, and overlay plates is to be reinspected for local contour O

deviations, if the sample is a weld of either of the four items mentioned above.

The measurements are to be taken at areas of local contour deviations and at intervals sufficient to verify the base material meets the following:

The following local contour deviations are to be verified

a. A maximum 1-inch gap between the cylindrical liner or done shell plate and a 6 feet long template curved to the required radius placed against the surface of the shell within a single plate section and not closer than 12 inches to a welded seas.

A maximum 1 1/2 inch gap when the 6 feet long t b.

template above is placed across one or more welded seaa in the cylindrical liner or the dome shell plate.

i c. A maximum 3/8 inch gap when a 15 inch long template curved to the required radius is placed horizontally and slid along the i surface of the liner shell plate and not i, closer than 12 inches to the weld seas.

1 3

c __

QI-031

'a Rev. 2

/N 5.0 P3*PUCTION (Cont'd)

A1 Base Material I.ocal Contours (Con't'd)

d. A maximum 3/4 inch deviation from a 10 foot straight edge (tolerance 10',-2",+0") placed in the vertical direction of the cylindrical liner between the horizontal weld seams.

NOTE: In measuring local contour deviations, with a 6 feet template or the 10 feet straight edge, a balance shall be maintained such that the designed contour of the plates is followed.

The above devices shall not be held against the liners in such a manner which could result in biased readings.

A2 Weld Seam Offset The sample weld seam will be reinspected to verify that the maximum allowable offset in the final weld joints meet the following:

a. For 3/8 inch plate the maximum offset shall be equal to or less than 3/32 inch.
b. For 1/2 inch plate the maximum offset shall be equal to or less than 1/8 inch.
c. For offsets within in the allowable tolerances the offset faired surface over the
width of the finished weld shall be at least 3-to-1 taper.
A3 Weld Seam Surface The sample weld seam surface will be reinspected to verify the following

l

a. The weld seam surface shall be free from coarse ripples or grooves, overlap and abrupt ridges or valleys so that proper interpretation of radiographic and other nondestructive examinations could have been performed.

j b. Verify that undercut does not exceed i 1/32-inch,

c. The surface of the reinforcement of all butt welded joints may be flush with the base material or may have uniform crowns. Verify l( that the height of the reinforcement on each I face of the seam does not exceed 3/32-inch.

i 4

. - . , - . . , , . . - , , , - , - . _ , . . . , - _ _ . _ . . , , , - - . - - - - - , , - , , , - , . - . _ - - , _ , _ _ ___,,n,,.,-._,

, , _ , - - - - . _ , - . - -n._ , - . - -,

, , _ _ _ - . _ _ _ _ _ - _ _ _ - ~ . . - - _ ~ _ . - . .- .-. .

4 QI-031

>1 Rev. 2 5.0 T2c V CTION (Cent'd)

A3 Werd Seam Surface (Cont'd)

If the base material local contours, weld seam offset, and weld seam surface meets the above criteria the

checklist shall be marked accept. If the base material local contours, weld joint offset, or veld seam surface does not meet the above criteria the checklist shall be

]

marked reject and the weld and rejectable item shall be

, identified by a deviation report.

5.2 Tank Stainless Steel Liner Reinspection 1 The weld seam surface will be reinspected to verify the following:

B1 Weld Sean Surface

a. The weld seam surface shall be free from coarse ripples or grooves, overlap and abrupt I ridges or valleys.
b. Verify that undercut does not exceed 1/32-inch.
c. The surface of the reinforcement of all butt welded joints may be flush with the base

[ material or may have uniform crowns. Verify

, that the height of the reinforcement on each i, face of the seam does not exceed 3/32-inch.

d. Verify that the exposed surface of the Stainless Steel tank liner is free of rust.

If the weld seam surface meets the above criteria the i checklist shall be marked accept. If the veld seam does not meet the above criteria the checklist shall be marked reject

and the weld and rejectable item shall be identified by a i

deviation report.

6.0 ATTACHMENT o.1 Checklist t

O 5

AtCachment 6.1

-f a QI-031 Rev.'2 es Page 1 of 2

't V) CHEC111ST CC'dEC3I PE.E RESPONSI TIri

  • CHIC *.C.IST POPULATION DESC VERIFICATION PEG NO.

Reinspect. of Cont. Liner &

Tank 5.5. Liner -

PAGI 1 0F2 -

QUALITY INSTRUCTION qI-031 Oistssrsc:to" O cutt 1 .

I EQUIPMENT MARK / TAG NO. CDOCUMENTATIONRE7IN UNIT 2 0 CCW.ON VERIFICATION RIMARKS ACCIPT REJECT DATE

, A1 Base Material Local contours

a. Max 1 inch gap-between 6-foot template and plate -

g b.* Max 1 1/2 inch gap

, -lI between 6' foot template and plata across veld sean

e. Max 3/8 inch gap between 15 inch ,

template and plate

d. Max 3/4 inch deviation from 10
  • foot straisht edge A2 Weld sean offset
a. Max 3/32 i>:h off- i set for 3/4 inch *

~~ ~ ~

shell plate

b. Max 1/8 inch off- '

set for 1/2 inch ,

does plate

,-  ?. -'

f :::j PREPARED BYt . APPROVED BY: . .t

^

s h ~,;'

  • ';t y " ,

DISCIPLINE ENCR. DATE LEAD DISCIPLINE ENCR. DATE f '

/ IN5FEu s.U BYs - APPROVs.D BY: ,' e

+ .

DATE - 'U LN5FEGTUK DATE ~ LEAD INSPECT 05L

~

CPP-007.tA. Revision 0 >- .

4 .

. ..~ - - -- .

Attachtent 6.1 s QI-031 Rev. 2 CHECKI.IST (cont'd) c CCMANCHE PEAK RESPONSE TEAM CHECKLIST POPL'I.AIION DESC VERIFICATION PKG NO.

Reinspect. of Cont. Liner PAGE 2 0F 2 - -

E Tank S.S.' Liner VERIFICATION

' REMARKS  ;

ACCEPT REJECT DATE 4 i c. Offset faired at "

least 3-to-1 ,

i A 3. Weld Sean .

Surface

s. Free of coarse *

. ripples or grooves. .

overlaps, or abrupt -

"ridaes or valleys

b. Undercut does not
  • exceed 1/32 inch
c. Flush with base '

. ~ material or has '

. uniform crown.

' ~ ' Reinforcement does ,

not exceed 3/32

  • inch at each face. ,

s i

B 1 ' Tack SST Liners

  • Reinspection
a. Weld surface free

" ,of coarse ripples

'or grooves, over- '

E

~1aps, and abrupt ridses or valleys.

b. Undercut does not  ;

' ' exceed 1/32 inch ,

et Veld surface is - ..

.. ? flush with base G Naaterial or has'

,'ffuniformcrown.'. -

]/ f .. .

7

l . . L .. d i.:.' y;.;y .7 6. p r.d

~.e ,.gs J.*C. t/.

i y'f.o, ,.3  ?.._>

vr . . * 'M < , 1* A+j p'e,

. , . 3 ,,

4 .i+. ,f,.....

0' height does not M -! , . 9 .' <; ??s. . ^ s .* . ! - . A' if. : c

. ~

. A' *:

9(AReinforcement f' f(;7 -,pj, exceed }/32 inchy'f -

f.% %Q '(, - ,p$,,RG 3' ,' {.{.p .re g,'; /,*,",74y s hwy.A4, m,pd;pf,'.

A.

a' , 9.> ...' at each face.

u,....,..

u

.. . , . ., . . , . , . . .i . ..-v. . ;. . * , o .  : - .h '

.M.. . .. .:., 1. ,' . . &  ?. i, ."c,(. ,hJy/pft{/G3 pyq W;.';

  • ? .,";. 14.*Raposed surface  ! C i

,7 Q),(g,+- ;f, '

.? ' i+

."-.'Q* . ,il5 a.fj 64. .

,, :4 , f5'.~*'efS.S.*1ineris 7 ':. free of rust.

~ '

' * * ' ' 4'* -

M2 *' 3 . .  ; *,;r' 'q.. ) e.:

' ,' li";Q@l3 p if'

34. 8

.i'.'

~ ,  : w;r.;%: 3 i. ;n. .m, , f.*.. .4 H %.,. t'.% t [ *y :.*. 5.Q &.* , , f%",';.'4,,

,,. y; '

Y.k.

. . . . . , .QW .; ^..' r* ;.i.b'.yWa*p ,.G-Q Q

, 2 s .,

- r

i: y . '.. s.%r**- .; .'

s g Vn%., n .: j.e . ' N..; m n' ;.;

.~.'.r...  : -- . . . * ~.

.t..

  • , 4.dn,..t.".t

.. !f.3 v. .

r. re- 3 p'.* *t4 ***y/$
      • .*1 Q. g.g o,;.1,,.
%r;;. gor ..~ + $

' ?. 9 Y ."..h,,MCr, v.

.- ~ ~ ~ 'A *

. 4 of"

/ '

CPP-007.18. Revision 0

~

-a+. e 2

. .. - _ - _ _ _ _ - _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ __ _ l

Retrieved from "https://kanterella.com/w/index.php?title=ML20203A241&oldid=3070429"