ML20202J193
| ML20202J193 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 03/18/1986 |
| From: | TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | |
| Shared Package | |
| ML20202J051 | List:
|
| References | |
| DAP-8, NUDOCS 8607170039 | |
| Download: ML20202J193 (17) | |
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TITLE PREPARATION OF ENGIEERING EVALUATIONS NUMBER DAP-8 Revision Prepared Date Reviewed Date Approved Date
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TN-85-6262/8 i
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TABLE OF CONTENTS Section Pg C ov e r S h ee t......................................................
i Tab le o f Con t en t s.................................................
Ii 1.0 P URP OS E...................................................
I 2.0 SCOPE.....................................................
I 3.0 DEFINITIONS AND RESPONSIBILITIES.........................
I 4.0 I NS T R UCT I ON..............................................
3 5.0 D O CU ME NT AT I ON..........................................
9 ATTACHMENTS i
A ENGIEERING EVALUATION COVER SHEET A-1 B
REFERENCES /S OURCES OF INFORMATION....................
B-I C
DIS CIPL INE /S UB JE CT CODES................................
C-1 O
D ENGIEERING EVALUATION LOG............................
D-l TN-85-6262/8 li i
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COMANCHE PEAK RESPONSE TEAM - DESIGN ADEQUACY PROCEDURE Number: DAP-8
Title:
PREPARATION OF ENGINEERING Revision: 2 EVALUATIONS
- OV l.0 PURPOSE This procedure establishes the requirements for the preparation and control of engineering evoluotions that are developed as part of the Design Adequocy Progrom (DAP).
2.0 SCOPE This procedure is applicable to third party engineering evoluotions developed under the DAP. This procedure does not opply to Discipline Specific Results Reports and the DAP Collective Evoluotion Report which are subject to g
Procedure DAP-9. Other DAP procedures may provide guidance for particular types of engineering evoluotions, in such cases, the other DAP procedure shall govern with respect to all requirements addressed by both procedures.
3.0 DEFINITIONS AND RESPONSIBILITIES 3.1 Definitions 3.I.I Engineering Evoluotion An Engineering Evoluotion is a principal means of documenting conclusions of DAP review activities performed in occordance with other DAP procedures (e.g.,
DAP-S, DAP-6). Their use includes, but is not limited to, the following:
o Documentation of evoluotion processes and conclusions that connot be odequately documented on checklists o
Development and documentation of conclusions that are reached through the collective evoluotion of checklists and other engineering evoluotions o
Documentation of the completion of selected portions of the DAP (e.g., topics within a discipline).
lk TN-85-6262/8 Page I of 10
COMANCHE PEAK RESPONSE TEAM - DESIGN ADEQUACY PROCEDURE
~
Number: DAP-8
Title:
PREPARATION OF ENGINEERING Revision: 2 p
EVALUATIONS Q
Other types of evaluations (e.g., safety significance evoluotions, root cause and generic implication evaluations, and corrective action evaluations) are governed by other DAP procedures that may reference DAP-8. Such references shall be d
deemed only to require compliance with DAP 8 when more specific guidance is not provided in the other DAP procedure.
l 3.2 Responsibilities 3.2.1 Reviewers Third party design odequacy personnel shall prepare and check the engineering evaluations. Preparation and checking shall be performed by different indivi-duals.
O-2.2.2 oi ciniine ceeraine'er, Discipline Coordinators shall have the following responsibilities:
Establish the scope of engineering evoluotions to be o
performed within their respective disciplines Ensure that qualified reviewers are assigned to prepare o
and check the engineering evaluation A
Approve engineering evoluotions prepared within their o
discipline.
3.2.3 Design Adequacy Program Manager The DAP Manager shall have the following responsibilities:
Assign control identification numbers to each completed o
engineering evoluotion and maintain the master engineer-ing evaluation log O
TN-85-6262/8 Page 2 of 10
COMANCHE PEAK RESPONSE TEAM - DESIGN ADEQUACY PROCEDURE Number: DAP-8
Title:
PREPARATION OF ENGINEERING Revision: 2 EVALUATIONS o
Establish the scope for engineering evaluations that cross discipline lines o
Ensure that qualified reviewers are assigned to prepare and check multi-discipline evaluations o
Approve multi-discipline engineering evoluotions.
4.0 INSTRUCTIONS 4.1 Preparation Engineering evoluotions are o principal means of documenting the bases of conclusions resulting from reviews at various levels within the DAP. Collec-tively, these evoluotions provide the required documentation in support of the conclusions of the Design Adequocy Program.
O Individually, these evaluations shall, therefore, include sufficient information to allow any technically qualified person who is not familiar with the work to understand it without extensive research and review.
Collectively, these evoluotions shall be sufficiently detailed to be used as the primary required inputs for the preparation of final results reports.
Specific guidance for the preparation and content of engineering evoluotions is provided in the following subsections.
(
4.
1.1 Purpose and Scope
The purpose and scope of on engineering evoluotion shall be specified at the time it is initiated. Within a specific discipline, this shall be done by the Discipline Coordinator. For evoluotions that cross discipline lines, this shall be done by the ld DAP Monoger. The purpose shall consist of a concise statement of what the engineering evoluotion is intended to accomplish. The scope shall precisely O
TN-85-6262/8 Page 3 of 10
COMANCHE PEAK RESPONSE TEAM - DESIGN ADEQUACY PROCEDURE Number: DAP-8
Title:
PREPARATION OF ENGiffERING Revision: 2 3
EVALUATIONS define the area (s) (i.e., discipline, task, subtask, etc.) which the evaluation addresses.
4.1.2 Method and Extent of Review Assigned reviewers shall develop and document on overview of the review process within the scope of evaluation. This shall include on explanation of the methods of review, the extent of the review, and a chronology of the steps of the review process, it shall also include any useful background information that aids in understanding the purpose and scope of the specific evaluation and how it fits in the overall context of the DAP.
- 4.1.3 Bases for Documentation Selection O
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tion and design aspects for the review shall be documented in the evaluation.
Where a choice exists for the selection of one or more items from a group (and any item or group of items could serve as verification of the design), assigned reviewers shall thoroughly document the bases for selection. The bases may be documented in detail within each engineering evaluation or by reference to other engineering evaluations, DAP Procedures, or documents which specifically address appropriate selection bases. This documentation shall demonstrate that the purpose and scope of the engineering evaluation (see paragraph 4.1.1, above) have been accomplished.
4.1.4 Source and Reference Documentation Assigned reviewers shall document all sources of information and references that are used in the engineering evaluation. This includes all input data, which may consist of procedures, DAP checklists, specifications, calculations, computer analyses and other related engineering evaluations. It otso includes reference O
TN-85-6262/8 Page 4 of 10
COMANCHE PEAK RESPONSE TEAM - DESIGN ADEQUACY PROCEDURE Number: DAP-8
Title:
PREPARATION OF ENGINEERING Revision: 2 EVALUATIONS documents such as codes, standards and regulatory documents, it is not necessary to list documentation that received only cursory examination and was not relied upon to reach the conclusion in the evoluotion.
4.I.5 Acceptance Criterio Assigned reviewers shall explicitly document the acceptance criteria upon which the engineering evoluotion is based. This shall include appropriate reference to acceptance criterio used in the preparation of DAP checklists and to the criterio lists developed in occordance with DAP-l.
4.1.6 Evoluotion Assigned reviewers shall document each step of the review process. This shall O
take the form of a point by point comparison of the scope being evoluoted to the G opplicable acceptance criterio.
This may be occomplished using checklists developed in accordance with Procedure DAP-4 or directly in the text of the j
evoluotion. Any assumptions used in the evoluotion process shall be clearly documented as to the reason for making the assumption and the basis for its acceptability.
1 i
4 Any discrepancies noted in the process of performing the evoluotion shall be documented and processed in occordonce with Procedure DAP-2.
4.1.7 Results and Conclusions 4
Assigned reviewers shall document the results of the evoluotion, its conclusions 4
and the bases for these conclusions. This shall include explicit identification of the following:
Ih TN-85-4262/8 Page 5 of 10 I
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COMANCHE PEAK RESPONSE TEAM - DESIGN ADEQUACY PROCEDURE Number: DAP-8
Title:
PREPARATION OF ENGINEERING Revision: 2 EVALUATIONS o
Any identified discrepancies and whether or not they have been determined to be a deviatien i
l o
Any deviations and whether they have been determined to be a deficiency (i.e., results of safety significance evalua-tion) 1 o
Corrective actions required o
Additional evaluations that must be performed to confirm or resolve all issues, oddress root cause and generic implications, or evaluate corrective actions, o
Corrective action that must be taken to resolve all issues o
Any other open items o
identification of issues that have been resolved.
The engineering evaluation shall be finalized after all discreponcles have been documented and submitted in the form of discrepancy reports in accordance with O
Procedure DAP-2. Engineering evaluations may be completed with corrective actions to be addressed in a revision or additional engineering evoluotion. Such open corrective actions shall be clearly noted.
4.2 Review and Approval The review and approval of engineering evaluations shall be performed as detailed in the following subsections.
4.2.1 Checking All engineering evaluations shall be checked by a qualified reviewer who did not participate in the preparation of the evaluation. It is permissible for the checker to have prepared or checked other evoluotions, checklists or calculations that support the evaluation. The evaluation shall be checked to ensure the fo!!owing:
i i
O TN-85-6262/8 Page 6 of 10 l
l.
COMANCHE PEAK RESPONSE TEAM - DESIGN ADEQUACY PROCEDURE Number: DAP-8
Title:
PREPARATION OF ENGINEERING Revision: 2 EVALUATIONS The content includes documentation as defined in Section o
4.1above The assumptions, criteria and assessments are technically o
occurate and appropriate for the evaluation performed The evaluation complies with this procedure.
o The checker shall note any items of disagreement or questions on a review copy of the evaluation and attempt to resolve these items with the preparer. If resolution is ochieved, the evaluation shall be finalized accordingly. If resolution is not achieved, the preparer and checker shall meet with the appropriate Discipline Coordinator to resolve all items and finalize the evaluation. The checker's signature indicates that he has complied with the above requirements.
No other documentation of the check shall be required.
1 4.2.2 Approval Upon completion of the checking process, engineering evoluctions shall be reviewed and approved by the appropriate Discipline Coordinator or the DAP Manager in the case of multi-discipline evaluations.
This review and approval process shall ensure that the engineering evaluation meets the scope require-
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ments established for it and that it is consistent which the CPRT Program Plan
'lincluding appendices).
4.3 Format Documentation for oil engineering evaluations shall consist of the following:
An Engineering Evaluation Cover Sheet (Attachment A) o that contains the following information:
The title of the evaluation and unique identification number O
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COMANCHE PEAK RESPONSE TEAM - DESIGN ADEQUACY PROCEDURE Number: DAP-8
Title:
PREPARATION OF ENGINEERING Revision: 2 EVALUATIONS The DAP discipline area to which the evoluotion applies.
The DAP Action Plan Number to which the evoluo-tion opplies The identification of any supporting evoluotions by title and identification number The purpose and scope of the evoluotion A checklist of the contents of the evoluotion A revision control block indicating originator, checker and opproval signatures and dotes o
A one page obstract that summarizes the evoluotion and its major results and conclusions o
The main text of the evoluotion that includes documento-tion of the activities described in Section 4.1 shall be organized in the following format unless otherwise di-rected by the DAP Monoger or the Discipline Coordinator:
Overview method, and extent of review Bases for sompte selection Source and reference documentation (Attochment B may be used as a standard reference form)
Acceptance criteria The evoluotion Results and conclusions o
Supporting information that is used directly in the evoluo-tion (e.g., checklists).
4.4 Other Types of Evoluotions Other DAP procedures may require the preparation of evoluotions similar to ld O
TN-85-4262/8 Page 8 of 10 i
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COMANCHE PEAK RESPONSE TEAM - DESIGN ADEOUACY PROCEDURE Number: DAP-8
Title:
PREPARATION OF ENGINEERING Revision: 2 EVALUATIONS the engineering evoluotions described in subsections 4.1 through 4.3 (e.g.,
trending evoluotions). Additionally, the Review Team Leader, DAP Manager, Discipline Coordinator or other DAP personnel may identify the need for a specific evoluotion. In such cases the scope of the evoluotion and other related Information may be defined by memorandum.
In both cases (i.e., the other procedure and the evoluotion scope memorandum) reference may be made to DAP-8 for limited purposes. For example, another procedure may refer to DAP-b 8 only for the purpose of obtaining a control identification number. In such cases the information contained in the other procedure or the evaluation scope memorandum shall take precedence over comparable information in thi: pre-cedure. To the extent that the other document is silent with respect to matters controlled by this procedure, it shall be assurned that the requirements of DAP-8 shall apply.
5.0 DOCUMENTATION i
5.1 Cover Sheet Upon completion of the evoluotion, the originator and reviewer shall sign ihe I
Engineering Evoluotion Cover Sheet (Attachment A) and submit the evoluotion l for opproval to the Discipline Coordinator or the Design Adequacy Program Manager, as appropriate.
Approval shall be documented on the cover sheet.
5.2 Identification b
After opproval has been obtained, the final engineering evoluotion shall be assigned a control identification number by the DAP Manager or his designated representative. This identification number shall be of the following format:
O TN-85-6262/8 Page 9 of 10 l
s.
COMANCHE PEAK RESPOtiSE TEAM - DESIGN ADEQUACY PROCEDURE Number: DAP-8
Title:
PREPARATION OF ENGINEERING Revision: 2
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EVALUATIONS DAP-E-XX-YYY
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Sequence Code
,? J Discipline / Subject Code (see Attachment C) ir' N.
s The DAP Monoger shall enter all assigned engineering evoluotions on the
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'?' ~ _a Engineering Evoluotion Log (Attachment D). This log shall include the identifico-K g
tion number, title and revision level of all evoluotions.
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5.3 ' Retention d
A copy of oil final engineering evoluotions shall be maintained and filed by the DAP Monoger or his designated representative in accordance with DAP 14, 5.4 Revisions Revisions to engineering evoluotions may be required to provide additional information or clarify and correct misinformation (e.g., inputs).
Revisions shall be prepared, checked and approved in the some manner os the original engineering evoluotion.
o Superseded final engineering evoluotions retained in DAP files shall either be identified as such on each page or securely bound with of least the cover page so identified.
The Engineering Evoluotion Log shall also note this occurrence.
Superseded evoluotions shall be retained in the files for historical reference.
O TN-85-6262/8 Poge 10 of 10
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ATTACHMENT A COMANCE PEAK DESIGN ADEQUACY PROGRAM ENGIEERING EVALUATION COVER SEET
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TITLE EVALUATION ID. NO. DAP-E-NO. OF SHTS.
DAP DISCIPLINE:
DAP ACTION PLAN NO.
SUPPORTING ENGINEERING EVALUATIONS:
CONT. ID. NO. DAP-E-TITLE:
DAP-E-TITLE:
DAP-E-TITLE:
DAP-E-TITLE:
SUPERSEDES ENGINEERING EVALUATlON NO. DAP-E-PURPOSE:
SCOPE:
0)
CONTENTS (SEE SECTlON 4.0, (DAP-8)
ABSTRACT OVERVIEW OF REVIEW PROCESS BASES FOR SAMPLE SELECTION SOURCES OF INFORMATION/ REFERENCES ACCEPTANCE CRITERIA EVALUATION RESULTS AND CONCLUSIONS SUPPORTING INFORM ATION RE5.dWbi APPROVED REV. NO.
REVISION ORIGINATOR DATE BY DATE BY DATE FORM DAP-8 2 A-I TN-85-6262/8
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O ATTACHMENT B COMANDE PEAK DESIGN ADEGUACY PROGRAM REFERENCES / SOURCES OF INFORMATION t
i ENGINEERING EVALUATION CONT. ID. NO.
REV.
DATE ORIGINATING IDENTIFICATION /
WHERE/HOW DOCUMEN1 i
ORG./ AUTHOR NUMBER REV.
DATE TITLE LOCATED TYPE
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ATTACHMENT C COMANCE PEAK DESIGN ADEQUACY PROGRAM DISCIPLDE/5UBECT CODES Code Discipline C/S Civil / Structural P
Piping and Supports M
Mechonical EIC Electrical / instrumentation PGl Programmatic / Generic implications i
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FORM DAP-8-2 C-1 TN-85-6262/8 1
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