ML20205Q597
| ML20205Q597 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 07/12/1984 |
| From: | Leech D TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | |
| Shared Package | |
| ML20205Q559 | List:
|
| References | |
| FOIA-85-59 CP-EI-4.0-1, NUDOCS 8606020264 | |
| Download: ML20205Q597 (8) | |
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'IUGCO E;GINEERING DIVISION INSTRUCTION REVISION ISSUE PAGE DATE h -
CP-EI-4.0-1 12 07-12-84 1 of 8 DESIGN AND DESIGN VERIFICATION ')
CONTROL FOR PREPARED BYp D o Q.2- N PIPE SUPPORT DEINEERING <
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APPROVED BY .m M
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1.0 REFERENCES
1-A CP-EP-4.0 Design Control 1-B CP-EP-4.5 Design Verification 1-C Pipe Support Engineering Guidelines
. 1-D CP-EI-4.0-13 Control of Stress Analysis for Pipe Support Ehgineering 1-E CP-EI-4.0-54 Engineering Instruction for Pipe Hanger Engineering Data Report 2.0 GDIERAL 2.1 IURPOSE
- To define the organization and task functions within Pipe Support Engineerirg (PSE). Rese guidelines ard controls are established to ensure the design of pipe supports is performed in accordance with existing project directives, and in compliance with applicable codes, standards, and specifications. Ris,. instruction shall identify the specific means by which the provisions of Reference 1-A and 1-B are implemented.
2.2 SCOPE mis instruction shall be implemented for design and design verification control activities performed by PSE; and activities within PSE affecting designs generated by other organizations.
2.3 RESPONSIBILITY
'Ihe CPP Pipe Support Engineer (PPSE) is responsible for providing technical direction and administrative guidance to the Pipe Support Engineering crganization and the general implementation of this instruction. Se Chief Engineer (s) has or have been delegated the responsibility for ensuring the specific implementation cf the activities described herein.
Where specific individuals are designated by title in this instruction, it shall be underctccd that designees may be delegated to act in that capacity.
2.4 AUIHORIZATION A list or log designating certain individuals to have approval or design verification authority for specific documents where applicable shall be maintaine y if F01A-85~C 8606020264 860521 PDR FOIA GARDE 85-59 PDR
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h* f 1- - '1NGCO ENGINEERING DIVISIOM INSTRUCTION REVISION ISSUE PAGE i DATE t- CP-EI-4.0-1 12 07-12-84 2 of 8 4
- 3.0 PPCCEDURE
] 3.1 DOCUMENT CONTPOL 3.1.1 Control of Incomina Documents Incoming documents, such as drawings and specifications, shall be received by PSE clerks. Contents shall be verified ard receipt shall be acknowledged.
3.1.2 Maintenance 4
Design documents for which originals are maintained by PSE shall in filed in secured, fire proof, controlled-accessed cabinets. Other documents shall be c]ntrolled in accordance with established project document control procedures / instructions. .
3.1.3 Distribution by DCC q_' ; _ .. ; ,
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These' supports sh3tll be tr3tnsmitted to the Grinnell Fire Protection Site representative by PSE and documented accordingly.
3.1.4 Drawing Control When copies of drawings are obtained by PSE personnel, the c]py must be stamped with a stamp similar to one of the following:
- $ 1. For office and engineering use cnly
-, 2. For office and engineering only 1
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' 3.2 DESIGN ACTIVITIES 3.2.1 Encineering Data
, In-house engineering data shall be developed and reviewed for adequacy and accuracy by an engineering comittee appointed by the PPSE and is approved and issued by the PPSE as engineering guidelines (Reference 1-C) under internal controlled distribution.
3.2.2 Source of Pipino Analysis Information Support design shall be based on the appropriate support loads from the applicable piping analysis. 'Ihe analYr,is output is obtained l frcm one of the following sources:
(1) PSE Piping Analysis Group. ,
(2) Technical Services: i
, (a) Gibbs & Hill Analysis Group (SSAG)
(b) Westinghouse 1
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TUGCO ENGINEERING DIVISION INSTRUCTIOM REVISION ISSUE PAGE
.. DATE CP-EI-4.0-1 12 07-12-84 3 of 8 3.2.3 Hancer Engineering Data Report (HEDR)
Pipe supports within the Building 2 as-built (I.E. 79-14) scope shall utilize the HEDR form in accordance with Reference 1-E.
3.2.4 Contents of Design Documents Design cbcuments generated by PSE shall have sufficient design input documentation (criteria, data, calculations, etc.) to allow a consistent basis for making design decisions, accomplishing design verification and evaluating design changes.
3.2.5 A file shall be initiated for each (or group of) pipe support (s) by the appropriate engineer referenced by piping line number, support number, or other reference assigned by the chief engineer. hhen complete, the file shall contain a design package which shall consist of:
- a. Cover sheet - ME-3
- b. Design verification sheet - DHE-6
- c. Finished sketches -
NE-4
- d. Calculation sheets - DHE-5
- e. Check copies of drawings
- f. Computer input / output sheets (if applicable)
- g. Final drawing (s)
- h. HEDR input / output sheets
- i. Other documents as applicable. l Computer sheets will normally be filed separately unless space permits maintenance with the design package.
3.2.6 The cover sheet, form DHE-3 shall be used for each package.
It shall be prepared by the design engineer.
3.2.7 Computer analysis (including programable calculator programs) shall be reviewed for accuracy.
3.2.8 hhen sketches and calculations are completed, the engineer shall initial and date the " Engineered By" block of the cover sheet, DHE-3, and initial and date each calculation sheet, WE-4 and DHE-5. Check ccpies of the finished sketches and calculations shall be made and the package forwarded to an engineer autliorized to perform design verification.
3.2.9 hhen a subsystem has been ASME Code Stamped ard/or turned over to TUGCO, the calculation packages shall be transmitted to INE by a controlled transmittal. Acknowledgement of receipt shall be obtained.
3.3 DESIG VERIFICATION 3.3.1 h e engineer performing this task may or may not be in the same group as the engineer who performed the original design. The engineer shall not; however, have been involved in the original design process or be in a supervisory position relative to the individual designated by " Engineered" on the cover sheet, NE-3. The Design Verifier shall utilize form DHE-6 as a guide for the verification process.
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TUGCO ENGINEERING DIVISION INSTRUCTICM REVISION ISSUE PAGE DATE J- .
j' CP-EI-4.0-1 12 07-12-84 4 of 8 3.3.2 Corrections, as required, shall be indicated in red on the check
. copies of the calculation sheets and/or the sketch. The package is 1 given to the original engineer for incorporation of the changes onto the original. The package is returned to the design verifier for a final check who signifies completion by initialing and datirg the original sketch, WE-4,and each calculation sheet, mE-5, the check
- copies for the finished sketch / calculations, and by initialing and dating form WE-3 in the " Engineering Check" block for finished
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sketches. The package shall then be forwarded to the drafting group.
'3.3.3 N no corrections are required, the design verifier shall signify coupletion by performing the signoffs indicated in Section 3.3.2. In
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some cases where calculations are rot required, the check copies may be deleted and the original signed off as indicated in Section 3.3.2.
The package shall then be forwarded to the draftirig group supervisor, for assignment to a drafter. .
_ 3.3.4 See Figure I for the work flow. The paragraph numbers on the tcrk
. flow chart relate to applicable paragraphs in this instruction.
4 3.4 DRAFTING CDNTROL 3.4.1 Finished drawings of pipe supports shall be prepared in accordance
- with the PSE drafting standards.
3.4.2 .The drafter shall signify completion by initialing the finished drawing in the "DRWN" block. hten drawings are completed an,d
- initialed, the drafter shall initial and date the " Drafted By" block
. for final drawing on form m E-3 and forward the package for
. checking.
3.4.3 The drafting checker shall check the finished drawings by making a line by line check on a copy of the finished drawing. All items
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checked are hi-lited and corrections shown in rec. hhen drawings are checked, the drafting checker shall initial and date the check copy and return the package to the drafter if corrections are necessary.
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If corrections are not necessary the package will be returned to the drafting supervisor.
- 3. 4 '. 4 The drafter shall incorporate all changes marked in red onto the final drawings, and return the package to the checker.
3.4.5 The drafting checker shall $cck the final drawings to be certain c that all check print comments have been incorporated onto the final i
drawings. After checking each drawing the drafting checker shall
' initial ea d drawing in the "CHKD" block. hten all drawings are cihecked and initialed, the drafting checker shall initial and date
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the drafting " Check By" block for final drawing on form mE-3. The drafting decker shall return the package to the drafting i supervisor. !
l 3.4.6 The drafting supervisor shall return the package to the design !
verifier performing tasks per Section 3.3. l l
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'AU;CO ENGINEERING DIVISION D'e!"YTCI' ION REVISION ISSUE PAGE
'. ,- / DATE
', CP-EI-4.0-1 12 07-12-84 5 of 8 3.5 FINAL VERIFICATION OF COMPLETED DRANINGS/ PACKAGE 3.5.1
- Re design verifier shall check the final drawings for accuracy and in.itial and date form DHE-3 in the " Engineering Check" block for final drawing. Should corrections to drawings and/or calculations be necessary, the verifier shall return the package to drafting or design engineer as applicable. 'Ihe design verifier shall signify all corrections have been made by initialing and dating the check copies.
3.5.2 Final verification shall be accomplished by completing form DHE-6, for eacit support with calculations, and signing and dating the
" Design Verified by" block. Se design verifier shall then forward the package to the lead engineer. ,
. 3.6 APPROVAL AND RELEASE FOR CONSTRUCTION '
he lead engineer shall signify his approval of the package by initialing and dating each final drawing and by initialing and dating' form DHE-3.
Drawing distribution shall be in accordance with Section 3.1.
3.7 REVISIONS 'IO FINAL DRAWINGS 3.7.1 Revisions shall be processed in the same manner as original design activities. Revisions shall be reviewed to ensure compatability with the entire design package. S e design engineer shall assure that all outstanding CMC's are dispositioned (voided or incorporated) during the revision process.
3.7.2 Revisions to drawings which do not affect the design and require no engineering evaluation may be made and cbcumented by the use of form DHE-50 (Figure II). 'Ihis form can only be approved by the Chief or Lead Engineers.
3.8 STRESS ANALYSIS PROCEDURES 3.8.1 Preparation of Stress Analysis he stress analysis package shall be prepared and design verified as described in Reference 1-D.
3.9 WELDED ATl'ACHMENIS ,
Special attention should be paid to any designs or design cdianges effecting welded attachments h nipe whicit has been previously hydro-tested. According t lime Code, only the following welding can be performed on previously hydro-tested piping without re-testing:
- 1. Full penetration welds for material up to 1/2" thick for lengths not to exceed 12".
- 2. Fillet welds with throat thickness up to 3/8" for lengths not to exceed 24".
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'IUGCO E2GINEERING DIVISION IEETRUCTION REVISIOM ISSUE PAGE
. DATE CP-EI-4.0-1 12 07-12-84 6 of 8 !
- 3. Partial penetration welds with grooves up to 3/8" depth for lengths not to exceed 24". ,
In the event welding is specified which meets or exceeds the above criteria (extracted from NB-4436), the drug. or design change shall include a note similar to the following: "NB-4436 hT.LD CRITERIA MET OR EXCEEDED." 'Ihis note requirement shall not be retroactive. l t
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- TUGCO ENGINEERING DIVISION INSTRUCTION REVISION ISSUE PAGE DATE i
CP-EI-4.0-1 12 07-12-84 7 of 8 FIGURE I WORK FLOW CHMtT Design Verifter DesignEngineerf f l Final check, initial and date l4q Complete, initial and date DHE-3, check copies and form ':HE-3 in gc DRE-4 and DHE-5 make copies of the "Eng. Check" block for final .w, Is+ sketches & calculations *
- drawing. Complete design LL*
verification by comptating fors y.
DHE-6. print and sign name and y
date the " Design Verified" by block I Design Verifier /\
Initial and date DHE-4 and each $*p , No Calc. sheet DUC-5. Initial and A ce DnE-1 in the "Eng. Check" 2
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g q -- Stock for finished sketches.
mm Initial and Jate checi costes "
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2** for finis':ed s;;ete:t/ calculations.
. W Design Signify approval of the package by initialing and dating final drawings and DHE-3 in the approval block.
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g NO YCS l ' P F ;l' f Clerieel Supervisor
- ~E Drafter l
Log design docunents in.
'; ;qq Complete DHE-7. DHE-12 or CtIE-14 distribute. maintain file.
4$$ Initial and date DHE-3 and initial e 8"" 'inished drawings.
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RELEASED 1f FOR CONSTRUCTION DrafCing Checker 47*.9 Initial final drawings. Initial fu
$ *. *. *. and date check prints and DHE-3 in the " drafting check" block. j NO e CK 1
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'IUGCO DGINEERING DIVISION INSTRUCTION REVISICH ISSUE PAGE DATE I I CP-EI-4.0-1 12 07-12-84 8 of 8 ,
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FIGURE II
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(TUICAL) 1 PSE DRAWING REVISION REVIDi FORM COMANCHE PEAK STEAM ELECTRIC STATION SUPPORT NO. I l
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'Ihe following changes made in revision of the support drawing do not affect the design and require no engineering j evaluation: l 4
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'Ihe calculations for revision are applicable for this
- revision. -
i j APPROVED:
i DATED:
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! mE-50 REV.0 1
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