ML20205Q575

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Rev 0 to Instruction QI-QP-11.13-1, As-Built Piping Verification Instructions
ML20205Q575
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 06/22/1981
From: Scott B, Welch M
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
Shared Package
ML20205Q559 List:
References
FOIA-85-59 QI-QP-11.13-1, NUDOCS 8606020207
Download: ML20205Q575 (5)
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Text

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( t TEXAS UTluTIES GEi4ERATING CO. NU REVISICN O E PAGE CPSES i

QI-QP-11.13-1 0 JUN 2 3 1981 1 of 5 PREPARED BY: 4 ., ,

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DATE AS-BUILT PIPING VERIFICATION { g INSTRUCTIONS '

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1.0 REFERENCES

1-A CP-EI-4.5-1, "As-8uilt Piping Veri fication" 2.0 GENERAL 2.1 PURPOSE AND SCOPE F O R plhi' L/ dn .17t n . ,

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This instruction e.itablishes the method utiliz b'n y .thn y'gA As-Built Coordina tor to conduct ve ri fica ti on of draw ng packages issued in the As-Built Piping Verification Progran

[ (Reference 1-A).

2.2 DEFINITIONS -

Point of Ent ry - A point at which fluid flow enters the subject pipe c onfigu ra tion, as depicted on i sone tric drawi ngs.

Point of Exi t - A point at which fluid fl ow exits the subject pipe c onfigu ra tion, as depicted on i s one tric d rawings . =

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2.3 EQUIPMENT l

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( INSTRUCTICN IIOUI AEVISION PAGE l

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TEXAS UTIUTIES GENERATING CO. l

, QI-QP-11.13-1 0 JUN 2 31981 2 of 5 3

1 3.0 INSTRUCTION t 3.1 VERIFICATION OF BRP ORAWINGS i

3.1.1 Dimensions All dimensions and elevations shall be verified beginning at point of entr/ (see definitions) and proceeding in the dintetion of flow to the point of exit. All measurements shall be taken to the nearest inch. When this cannot be achieved, the Technical Services As-Built Coon 11nator will be contacted to detennine what accuracy is required. .

f If a dimension is as per drawing it shall be circled and t

checked. If a dimension is at variance with the drawing J

t it shall be ci rcled and the As-Built dimension written

  • l adjacent to the circle. ,

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, a) Elevations shall be taken fran a defined point, i.e.;

top of pipe. Elevations, for each BRP, shall be in

, reference to the elevation monument.

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. Whenever possible a surveyor's level and a level rod

! shall be used to detennine elevations. If necessary, a i

steel tape may be used to measure vertical lengths, t

b) Horizontal dimensions shall be verified by measurement * '

to and fran defined points, i.e.; connections, hangers,  !

etc.. Such measurements shall be taken using a steel '

tape and plumb bob (when necessary) to obtain a tnae l horizontal length.

c) If a ve rtical run of pipe can be detennined to be

out-of-plumb, visually, the Technical Services As-Built j

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Coonfinator will be contacted to detennine the degree I of plu1bness required.

3.1.2 Valves I The valve 1ocation and mark (type) number shalI be verifled.

j For all valves 21s inches nominal pipe size and' larger, as i well as power actuated 2 inches noninal pipe size and i smaller valves, the valve orientation shall be shown on the i BRP and verified.

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, INSTRUCTION REVIS10N ISSUE PAGE I

( NUMBER OATE TEXAS UTILITIES GENERATING CO. l QI-QP-11.13-1 0 JUN 2 3 1981 3 of 9 If the valve is oriented as per drawing it shall be cimled and checked. If orientation is at variance with drawing then the valve will be circled and an estimate of actual l orientation shall be written adjacent to the circle.

3.1.3 Sleeves The following infonnation shall be verified for all piping passing through structural walls and floors.

a) Identification of pipe sleeve shall be shown on BRP and

] As-Built Checklist.

b) Sleeve eccentricity (if any) shall be detennined by measuring the clearance between the pipe and sleeve in 4 positions, each 90* fran the other. This infonnation will be'sh mn on As-Built Checklist.

l( c) Inside diameter of sleeve shall be shown on As-Built Checklist. -

d) Loca tion of sleeve wi th respect to building column lines shall be shown on BRP d rawing, by dimensi on ve rification desc ribed in 3.1.1.

e) Type of sealing material used between pipe and sleeve shall be shown on As-Built Checklist.

4 3.1.4 Interconnecting Equipment All interconnecting equipment such as pumps, tanks, i

strainers, etc. shall be clearly identified on the BRP. This shall include as a minimum the equipment mark number. The orientation of any item that is totally supported by the j interconnecting piping shall be clearly shown on the BRP.

t If the above infonnaticn is found to be as shown on draw'ing, the equipment iten shall be circled and checked. If there exists some variance then the item shall be circled and the appropriate infonnation shall be noted adjacent to the circle.

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( INSTRUCTION REVISION ISSUE PAGE TEXAS UTILITIES GENERATING CO.

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CPSES }

QI-QP-11.13-1 0 4 of 5  ;

GUN 2 3 1981 t,

3.2 VERIFICATION OF BRHL ORAWINGS:

All BRHL drawings shall be veri fied to ascertain the following:

a) The number of installed hangers agrees with the number j shown on the BRHL. This shall be shown on the As-Built i Checklist. -

b) The actual mark nisnbers ag ree wi th the mark nurabers shown on the BRHL. If this is the case, the number shall be circled and a check shall be made adjacent -

to the circle. If the numbers do not agree the number appea ring on the drawing shall be ci rcled and the As-Built number written adjacent to it.

c) The dimensi onal loca tion of each support shall be

(- veri fied and recorded in manner delineated in 3.1.1.

d) Hange rs designated anchors that are cast in concrete shall be verified in place. This shall be shown on the As-Built Checklist.

e) The orientation of the hangers agree with that shown i

on the BRHL. If this is the case the hanger shall be ci rcled and checked on the d rawing. If the orientation is at variance, with that shown on the BRHL, the hange r will be ci rcled and the As-Built orientation shall be shown adjacent to the ci rcle.

i j 3.3 VERIFICATION OF GHH-BRHL DRAWINGS:

l All GHH-BRHL drawings shall be verified according to 3.2.

For piping designated pa rt of Class 1. Stress P robleia,

' the GHH-BRHL shall also be verified that a stiffness or "K" value is shown for each suppo rt. If value is as pe r d rawing, the value will be ci rcled and checked. If value di f fe rs fran As-Bui l t value, then value will be circled and the As-Built value shall be written ad- '

jacent to the circle.

i 3.4 VERIFICATION OF BRH'S  !

Dimensions shown on the BRH hanger sketch shall be verified if hange rs appear misaligned or incorrectly installed.

Determination as to the need of verification shall be the

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INSTRUCTION REVISION ISSUE I

( NUMBER DATE PAGE TEXAS UTluTIES GENERATING CO. I i CPSES QI-QP-11.13-1 0 JUN 2 3 1981 5 of 5 i

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responsibility of the Quali ty Assu rance As-Built i l Coo rdina tor. The method used in verification of BRH's shall l also be determined by the Quality Assu rance As-Bui l t Coordinator on a case-by-case basis.

3.5 AS-BUILT CHECKLIST Upon canpletion of the As-Built verification in the field, the QA As-Built Coordinator shall review the drawing package

]- and conplete the As-Built Checklist. The package is then i j distributed in the manner outlined in Reference 1-A.  ;

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