ML20138P177

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Rev 0 to Procedure CP-QP-19.4, Tack Weld Surveillance
ML20138P177
Person / Time
Site: Comanche Peak, 05000000
Issue date: 07/06/1981
From: Tolson R
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
Shared Package
ML20138M609 List: ... further results
References
FOIA-85-59 CP-QP-19.4, NUDOCS 8511060488
Download: ML20138P177 (3)
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Text

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1 f l PRCCEDURE REVISION i ISSUE '

PAGE i I

TEXAS UTILITIES GENERATING CC t NUMBER >

CATE CPSES  ;  ;  ;

, I CP-QP-19. 4 0 JUL6 1981 l 1 of 3 l l

PREPARED SY: i $ Mli OATE b I TACK WELD SURVEILLANCE i l CpgT'IM I Cl *^.h[t APPROVED SY /A 8/

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1.0 REFERENCES

1-A CP-QP-18.0, "Inspecti on Reports" i l

2.0 GENERAL 2.1 PLHPOSE The pu rp ose of this procedure is to outline the method used by QA/QC in perfoming surveillance of Construction's weld joint fitup tack weld activities.

2.2 SCCPE The sc ope of this procedu re cove rs surveillance inspections perforined on conduit supports, cable tray supports and structural / miscellaneous steel weld joint fi tup tack  ;

welds.

l 3.0 PROC EDURE .

I

3.1 SURVEILLANCE i

Surveillance of fitup tack welds will be done to assure that the quality of tacks inspected meets the visual inspecti on ,

acceptance criteria of AWS D1.1 as delineated in Section 3.2 cf this procedure. l 3.2 INSPECTION ACCEPTANCE CRITERIA The acceptance criteria for the inspection of tack welds is as follows:

a. No cracks i

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b. Thorough fusion between weld metal and base metal j 8511060408 851016 PDR FOIA GARDE 85-59 PDR

% , TUGCC CA

I PROCEDURE REVISION ISSUE NUMBER DATE PAGE TEXAS UTILmES GENERATING CO.

CPSES CP-QP-19.4 0 lJUL 6 1981 2 of 3

c. St@ ping and starting endd, prepa red by grinding or other means so that they can be satisfactorily incorporated into the fir:al weld,
d. Discontinuities such as undercut, unfilled craters and porosity removed prior to incorporation into the final weld.

3.3 FREQUENCY Surveillance shall be perfonned at a frequency necessary to maintain a desired " level of confidence" in Constmction's fitup tack welding activities. This frequency shall be based en the quality of tack welds inspected and shall be detennined by the Quality Engineering Supervisor.

3.4 00CUMENTATION Results of the tack weld surveillance shall be documented on Inspection Reports.

  • An Inspection Report (Attachment 1) shall be prepared for each tack weld inspected du ring this su rveillance. The identification nunber information on the IR shoula include the weld number, if any, or else uniquely identify the weld by l oca ti on. A brief sketch may be drawn in the rema rks section to help identify tne weld location.

Inspection Reports shalI be processed as per Reference 1-A, except that upon cicsu re they shall be forwa rded to the Quality Engineering Supervisor for further processing and subsequent filing in the Pe nnanent Plant Records Vault.

3.5 REPORTING The Quality Engineering Supervisor, or his designee, shall review the Inspection Reports for conpleteness, accuracy and any trends prior to filing in the Permanent Plant Recorts Vault.

Results shall be summa rized, along with the need for any necessa ry corrective action, and fonnally reported by the Quality Engineering Supervisor to the Site QA Supervisor on a qua rterly basis.

,, TUGCC CA

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PROCEDURE REVISION ISSUE

< NUMBER DATE DAGE

TEXAS UTILITIES GENERATING CO.

! CPSES CP-QP-19.04 0 JUL 6 1981 3 of 3 .

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