ML20137J232
| ML20137J232 | |
| Person / Time | |
|---|---|
| Site: | 05000000, Sequoyah |
| Issue date: | 01/13/1986 |
| From: | TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML20137J235 | List: |
| References | |
| PROC-860113, NUDOCS 8601220334 | |
| Download: ML20137J232 (53) | |
Text
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1 i-i REVISED PROCEDURES GENERATION PACKAGE SEQUOYAH NUCLEAR PLANT TENNESSEE VALLEY AUTIIORITY s
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8601220334 B60113 PDR ADOCK 05000327 PDR i
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TABLE OF CONTENTS Section Page I
INT ROD U CTION......................................... 1 II PLANT-SPECIFIC TECHNICAL GUIDELINE............... 2 III WRITERS' GUIDE FOR EOPs............................ 7 IV EOP VERIFICATION AND VALIDATION PROGRAM........ 8 V
EOP TR AINING PROGR AM.............................. 15, Writers' Guide for Emergency Operating Procedures
a I.
INTRODUCTION A.
PURPOSE The purpose of this Procedure Generation Package (PGP) is to describe the emergency operating procedures (EOPs) i development at the Sequoyah Nuclear Power Plant (SQN).
Sequoyah Units 1 and 2 are four-loop Westinghouse PWRs.
B.
SCOPE This document was developed in response to Supplement I to NUREG-0737, Item 7.2b, page 15 and NRC Draft Safety Evaluation Report Regarding the Procedures Generation Package for the Watts Bar and Sequoyah Nuclear Plant (L44 850 725 423).
C.
ORGANIZATION This document consists of the following four parts:
Plant-specific Technical Guideline, Writers' Guide for EOPs, EOP Verification and Validation Program (V&V), and EOP Training Program.
Each part describes the approach to be taken as part of the overall EOP Implementation Plan for Sequoyah Units I and 2. B01/aac
II.
PLANT-SPECIFIC TECHNICAL GUIDELINE A.
GENERAL This instruction contains a method that will be used to convert the generic guidelines into EOPs.
Additionally, this instruction will specify the personnel who will write the EOPs and the source documents they will use.
Because of the similarity between SQN and the generic plant used in the Westinghouse Owner Group (WOG) guidelines, SQN will use revision 1 of the generic guidelines to develop plant-specific Emergency Operating Procedures (EOPs).
SQN contains two major differences from the WOG generic plant.
These differences are the upper head injection system and the ice condenser.
TVA has requested Westinghouse to evaluate the WOG guidelines taking into account these differences.
B.
PERSONNEL Personnel selection will be based on familiarity with plant operations, knowledge of plant systems, understanding of WOG guideline development and the SQN writers' guide.
The Operations and Engineering Sections at SQN will perform the w;rk.
C.
SOURCE DOCUMENTS EOP writers will use the following source documents to prepare EOPs:
Writers' Guide for EOPs WOG generic guidelines and background documents Electrical Drawings Flow Drawings Administrative Procedures Licensing Commitments relating to EOPs FSAR Derivations for Calculated Mathematical Values Used in EOPs Step Deviation Document Westinghouse Bulletins and Memos System Operating Instructions B02/aac
D.
METHOD The writer will review the source documents and then construct a draft EOP.
Concurrently, the writer will complete the Step Deviation Document. This document (Figure I for initial and Figure 2 for revisions) will be used to explain any variance between a WOG step and a SQN step.
The following are additional instructions for writing the EOP and for completing the form.
1.
If it is determined that a generic step is compatible with SQN, then the step should be copied into the SQN procedure.
Since the technical basis of the step is explained in the WOG Background Document, there is no need to repeat this on the Step Deviation Document.
2.
When a WOG step specifies a numerical value to be calculated, the value will be determined and put into the SQN procedure.
The form should indicate where the method of derivaticn is located.
3.
When a WOG step requests plant-specific details or actions to be added to the procedure, add the information to the procedure. However, if the operator actions are highly routine or well within the knowledge of the operator, the specific steps may be deleted.
Consideration should be given to the minimum number, qualifications, training, and experience of the operating crew.
4.
If the WOG guideline fails to identify or address systems or actions that are unique to SQN, then steps should be included to encompass the necessary actions.
5.
If a WOG step specifies an action that cannot be performed at SQN, the step will be deleted or modified.
6.
Modifications to WOG steps are acceptable without extensive justification provided that the change does not alter the intent of the guideline. Examples of these types of changes -
are as follows:
n.
Deletions of level of detail (See item #1 above).
b.
Deletions of overly obvious actions called for under the RESPONSE NOT OBTAINED column of the WOG guidelines, c.
Rewording of WOG steps to conform to standard SQN terminology.
d.
Rearranging WOG steps to streamline the procedure due to SQN control room design and for the operator convenience, Changes as allowed by WOG background or W UHI/IC e.
guidelines.
_ B03/aac
E.
DOCUMENTATION 1.
The completed SQN Step Deviation Document will be provided as a source document to assist in the EOP verification process and in the revision, review, and approval process, i
2.
The completed Step Deviation Document should be maintained in the EOP upgrade program manual.
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Rev.
Page of STEP DEVIATION DOCUMENT STEP:
WOG STEP:
JUSTIFICATION OF DIFFERENCES:
WRITER DATE Figure 1 B05/aac
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WOG STEP:
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JUSTIFICATION OF DIFFERENCES:
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VERIFICATION / VALIDATION METIIOD TABLE-TOP /
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SIMULATOR /
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j-WRITER DATE
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III.
WRITERS' GUIDE FOR EOPs A.
GENERAL A writer's guide for EOPs is a plant-specific document that provides instructions on writing EOPs, using good writing principles. In addition to establishing sound writing principles, the guide helps to promote consistency among all EOPs and their revisions, independent of the i
ndmber of EOP writers.
The writers' guide will be revised, as necessary, based on feedback from operator training, experience, and validation.
B.
DOCUMENT DESCRIPTION Information on the following major items are included in the plant-specific writer's guide for EOPs:
1.
EOP Designation and Numbering 2.
Procedure Organization and Format 3.
Writing Instruction Steps 4.
Foldout Page 5.
Status Trees 6.
Mechanics of Style 7.
Graphs, Charts, Tables and Figures 8.
Maintaining EOPs 9.
Availability and Accessibility The SQN writers' guide is provided as Attachment 3. B07/aac 1
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t IV.
EOP VERIFICATION AND VALIDATION' PROGRAM
\\
A.
GENERAL This document outlusis the process l$y which SQN upgraded EOPs will be initially verified and validat'ed.
1, The objectives, specific criteria, methods of Verification and Validation (V&V), personnel and documentation to i
support the program will be discussed.
It is intended that this will be an ongoing program and when significant modifications are made' to procedures, a similar validation process will be conducted.
In addition to the V&V prograr., a Control Room ' Design Review effort will be undertaken to identify human engineering discrepancies.
B.
OBJECTIVES In ev$1uating each of the objectives, consideration must be given to the human factors aspects.
The verification /
validation process will address all of the following questions :
1.
Are the EOPs technically correct, i.e., do they accurately reflect the technical guidelines and other EOP source documents?
2.
Are the EOPs written correctly, i.e., do they accurately reflect the plant-specific writers' guide?
3.
Are the EOPs usable, i.e., can they be understood and followed without confusion, delays, and errors?
4.
Is there a correspo'ndence between the procedures and the control room / plant hardware, i.e., control equipment /iridications that are referenced are available (inside and outside of the control room),
use the same designation, use the same units of measurement, and operate as specified in the procedures?
5.
Are the language and level of information presented in the EOPs compatible with the 7
minimum number, qualifications, training,
(
and experience of the operating staff?
6.
Is there a high level of assurance that the procedures will work, i.e., will the procedures correctly guide the operator in mitigating i
transients and accidents?
)
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C.
RESPONSIBILITIES The Operations Supervisor will be responsible for the V&V program. The reviewer or review team will be responsible for verifying that the criteria of the objectives are met and that discrepancies are documented. The Plant Operations Review Committee is responsible for final approval of the emergency procedures.
D.
METHOD OF VERIFICATION / VALIDATION It should be noted that to initially establish the validity of the EOPs, to meet the above objectives, the personnel chosen to write the EOPs will be familiar with plant equipment, operations, technical requirements, operator knowledge level, the writers' guide and the technical guideline. This is 'codsidered as'a factor in the V&V process.
Secondly, the generic guidelines were validated on a simulator to determine the effectiveness of the procedure network including technical content, procedure interrelationships, usability, human factor considerations, etc.
This too, is considered a factor in this process.
The means by which additional V&V will be performed to meet each objective is as follows:
1.
Are EOPs technically correct, i.e., do they accurately reflect the technical guidelines and other EOP source documents?
The objective will be met by performing a a.
step-by-step tabletop review of the EOP.
The reviewer (s) shall be familiar with plant equipment, operations, technical requirements, operator knowledge level, and the technical guidelines.
Additionally, the reviewer should not be the writer of the EOP.
Using the source documents, the reviewer (s) should address the following concerns:
- 1) Is the Step Deviation Document accurate and complete?
- 2) Is correct plant-specific information incorporated into the EOPs, such as valve numbers, numerical values and operator tasks?
- 3) Have all calculated values been verified?
- 4) Are licensing commitments satisfied?
_g.
B09/aac
2.
Are EOPs written correctly, i.e., do they accurately reflect the plant EOP writers' guide?
This objective will be met by performing a table-top review of the EOP. The review will be a direct comparison between the writers' guide and the EOP.
The reviewer shall be a person familiar with the Writers' Guide for EOPs and should not be the writer of the EOP.
3.
Are EOPs usable, i.e., can they be understood
' and followed without confusion, delays and errors?
Operations personnel will conduct simulator exercises for the Westinghouse recommended test sequences for V&V.
If the simulator cannot model certain aspects of the Westinghouse test sequences, then a control room or simulator walk-through will be performed in lieu of the simulator exercise. The simulator crew and observer (s) will attempt to identify problem areas associated with the procedure where the user:
a.
Allows a limit to be exceeded.
b.
Fails to detect a key signal or parameter.
Does not perform an action or step. This also c.
includes action required to take place at some time later based on continuous monitoring of a parameter.
d.
Performs an action not in the procedure.
e.
Selects the wrong procedure.
f.
Performs an action out of sequence.
g.
Has to re-read procedure steps (readability).
h.
Takes excessive time to complete an action.
This also includes action required to take place at some time later based on continuous monitoring of a parameter.
i.
Fails to perform actions at the required time.
j.
Fails to observe cautions or notes.
k.
Has difficulty making transitions from one procedure to the next.
1.
Is confused or uncertain about performance of an action.
Feedback received during EOP operator training will be used to improve EOP usability. B010/aac
4.
Is there a parauel between the procedures and the control room / plant hardware?
This objective will be met by performing a plant / control room walk-through.
The reviewer (s) shall be familiar with SQN equipment and operations.
The reviewer (s) should verify the following for plant equipment specified in the EOP:
Equipment is available for operator use.
a.
- b.
Equipment is identified properly.
Actual units of measure and the range of c.
indicators / recorders correspond to values specified in the EOP.
5.
Are the language and level of information presented in the EOP compatible with the minimum number, qualifications, training, and experience of the operating staff?
This objective will be satisfied by having the Operations Section write the EOPs, since they are familiar with the above.
SQN EOPs will be checked out on the simulator by Operations personnel during EOP training sessions and the operator will be able to supply additional feedback to identify problems.
The validation and verification, when performed using the simulator, will be completed using a maximum of four Operations personnel to be consistent with minimum staffing in technical specifications.
6.
Is there a high level of assurance that the procedures will work, i.e., do the procedures guide the operator in mitigating transients and accidents?
The generic guidelines are backed up with computer analysis and, as stated earlier, were verified on a simulator.
Additionally, SQN EOPs will be tested on the simulator, control room or simulator walk-through, or table-top review.
E.
DISCREPANCY DETECTION The purpose of the V&V program is to detect discrepancies.
A reviewer or review team will be assigned to address each objective listed above.
It will be the responsibility of the reviewer or review team to ensure that the criteria of the objectives are met and discrepancies are documented.
Identified discrepancies will be documented on the EOP Verification and Validation Record (Figure 3).
The reviewer (s) should also make recommendations to resolve discrepancies when appropriate. B0ll/aac
F.
DISCREPANCY RESOLUTION When a discrepancy is identified, a resolution will be developed to satisfy the discrepancy.
The solution to some discrepancies may involve correcting the procedure, while others may be addressed by increasing the level of operator training. The resolution will be written on the EOP Verification & Validation Record.
A table-top review will be performed for all changes made to the EOPs as a result of verification and validation.
Updating the step deviation document will satisfy this requirement.
The verification of the EOP is not complete until the discrepancies have been resolved. The operations supervisor, or his representative shall have final approval of the disposition of each discrepancy.
G.
DOCUMENTATION The EOP Verification & Validation Record should be maintained in the EOP upgrade program manual. B012/aac
EOP VERIFICATION & VALIDATION RECORD Procedure No:
Title:
Rev. No.
Rev. Date Reviewer Review Date:
Final Approval Page 1 of STEP DISCREPANCIES AND FINAL NO.
RECOMMENDATIONS RESOLUTIONS Figure 3 B013/aac
i Page of STEP DISCREPANCIES AND FINAL NO.
RECOMMENDATIONS RESOLUTIONS Figure 4 B014/aac
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EOP TRAINING PROGRAM A.
GENERAL The EOP training program will be developed to support implementation of the EOPs. The EOP writer interfaces i
with the Power Operations Training Center to ensure a supportive program.
B.
PROGRAM DESCRIPTION When developing the EOP training program, the following major items will be considered:
. what type of operator training should be provided (initial, refresher)
- what method of operator training should be followed what operator knowledge and skill level is desired what procedure tasks exist that require operator decision-making what training material is needed to support EOP training requirements what current operator licensing requirements exist what method should be provided for operator feedback into the training program and EOP development what will be the effect on current plant operation while training operators on EOPs not yet in place at the plant.
This description outlines the approach to be used to train licensed operators on EOPs and to ensure the operators are informed and knowledgeable of future changes to the EOPs.
1 15-B015/aac
i C.
TRAINING PROGRAM GOALS The initial, overall training goals for the EOP training program are as follows:
to enable the operators to understand the structure of the EOPs to enable the operators to understand the technical bases of the EOPs to enable the operators to have a working knowledge of the technical content of the EOPs to enable the operators to use the EOPs under operational conditions Training program objectives to the these goals will be developed for each lesson plan.
D.
INITIAL EOP TRAINING METIIODS The EOP training program is established to instruct operators in the EOPs.
It consists of classroom instruction and simulator exercises.
1.
Classroom Instruction Classroom instruction sessions will be conducted. Included in the information presented during this method will be the following:
the logic yhind the development of EOPs the process used to develop the EOPs the EOPs themselves, including supporting technical and human-factors information 2.
Simulator Exercises Training on the EOPs will be conducted for all licensed operators using scenarios on the SQN control room simulator.
The scenarios will be reviewed for applicability on the simulator and will comply with SQN Response to NUREG-0737, item I. A.2.1 (reference letter from L. M. Mills to A. Schwencer dated 7/31/80). When the simulator cannot be used for certain aspects of the EOPs, the training on the EOPs will be performed using classroom instruction and/or walkthroughs. B016/aac
Training will be conducted with all operators performing their normal control room functions.
Additional training will be conducted where the members of a crew alternate responsibilities.
This additional training is important to promote understanding of the other operators' responsibilities in the overall conduct of the actions, and it should lead to enhanced communications within the control room.
3.
REFRESIIER TRAINING All licensed operators will perform simulator exercises using the EOPs during refresher training.
Realistic scenarios will be developed to ensure that the critical aspects of the EOPs are exercised.
The scenarios will comply with the SQN Response to NUREG-0737, item I. A.2.1 (reference letter from L. M. Mills to A Schwencer dated 7/31/80).
Training on EOPs will be conducted in such a manner that each crew performs the simulator exercise with each operator performing the actions that he normally would be responsible for during an emergency incident.
Licensed operators not assigned to a shift will participate in the simulator exercise as part of a control room crew.
The Power Operations Training Center and Operations Staff will participate in the development and execution of refresher training.
The training staff is responsible for developing the scenarios, observing and evaluating the simulator exercises, and critiquing the results.
Any additional training needs will be determined from the performance of the the operators.
The scenarios will be varied sufficiently to ensure the operators do not develop a set pattern of responses to incidents but are able to respond to the symptoms as they develop.
F.
TRAINING ON REVISIONS Training on minor procedure revisions will be conducted through a program of required readings (self-taught), preshift briefings, or lectures in the requalification program. Training on major revisions will be conducted by the use of classroom instruction or simulator exercises.
When revisions are made to the immediate actions of the EOPs, the operator must review the revision prior to assuming shift.
When revisions are made to the subsequent actions of the EOPs, the Operations Supervisor may require the operator to review the revision prior to assuming shift.
IIowever, normally the operator must review the EOP revision within five working shif ts. B017/aac
G.
INPUTS INTO TRAINING PROGRAM CHANGES 1.
Supporting Training Material Changes Changes to supporting training material will be factored into updated lesson plans and operator memos.
Some of the supporting material identified to date is as follows:
WOG EOP background information associated WCAPs 2.
Operator Feedback Operator feedback resulting from EOP verification, EOP validation, and training critiques will be used to keep the training program and EOPs current and relevant.
II. EVALUATION The operators' knowledge and performance of EOPs will be evaluated after training and appropriate follow-up training will be conducted for individuals whose performance is not acceptable. 0018/aac
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ENCLOSURE 3
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ATTACHMENT 3 WRITERS' GUIDE FOR EOPs B019/aac
e SCOPE The purpose of this procedure is to provide administrative and technical guidance on the preparation of Emergency Operating Procedures (EOPs).
TABLE OF CONTENTS A.
EOP Designation and Numbering 1.
- Procedure Title 2.
Procedure Numbering i
3.
Page Numbering B.
Procedure Organization and Format C.
Writing Instructional Steps 1.
Step Length and Content 2.
Instruction Steps, Left-Hand Column 3.
Instruction Steps, Right-liand Column 4.
Use of Logic Terms 5.
Use of Cautionary Information and Notes 6.
Calculations 7.
Emphasis 8.
Referencing and Branching to Other Procedures or Steps 9.
Component Identification and Location 10.
Level of Detan 11.
Placekeeping Aids 12.
Control Room Staffing and Division of Responsibilities D.
Foldout Page E.
Status Trees F.
Mechanics of Style 1.
Spelling 2.
Punctuation 3.
Capitalization t
4.
Vocabulary 5.
Numerical Values 6.
Abbreviations, Acronyms and Symbols 7.
Ilyphens G.
Graphs, Charts, Tables and Figures H.
Maintaining EOPs I.
Availability and Accessibility
' B020/aac
PROCEDURE A.
EOP Designation and Numbering Each EOP shall be uniquely identified.
This identification permits easy administration of the process of procedure preparation, review, revision, distribution, and operator use.
1.
Procedure Title a.
Every procedure shall have its own descriptive name that summarizes the scope of that procedure or states the event which it is intended to mitigate.
- b.. The title should be consistent with the generic guideline title.
2.
Procedure Numbering EOPs are to be subdivided into 3 categories:
a.
- 1) Procedures for diagnosis or mitigation of design basis events (E-series). Design basis event procedures should be designated E, e.g. E-0, E-1, E-2, or E-3.
Subprocedures to these j
design basis event procedures should be j
designated ES, e.g., ES-0.1, ES-1.2.
- 2) -Function Restoration procedures (FR-series) to address or respond to a challenge to a Single Critical Safety Function. Function restoration procedures should be designated FR, e.g.,
FR-S.1, FR-H.1, etc.
- 3) Emergency Contingency procedures (ECA-series) to address events that go beyond the design basis events and that are not easily covered in the E-series or which may complicate or reduce the effectiveness of the E-series procedures if included 1
therein.
Emergency contingency procedures should be designated ECA, e.g., ECA-0.0, ECA-0.1, etc.
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3.
Page Numbering Each page of the EOP will be numbered near the top a.
center of the page as per the plant Administrative Instruction.
Example:
SQN E Unit 1 or 2 Page 3 of 4 Rev. 0 b.
Each page will be numbered consecutively at the bottom center of the page.
The top heading and the bottom page number will define c.
the borders of the page and will ensure that information is not lost during reproduction.
d.
Refer to Figures 2 through 5 for examples of the page identification information.
B.
Procedure Organization And Format 1.
Plant Cover Page (all procedures) will identify the EOP, give its revision number and date, number of pages (so that missing pages can be identified), provide a place for review and approval signatures, and indicate the facility to which the EOP applies.
Refer to Figure 1 for an example of the plant cover page. The format of the cover sheet is specified in the administrative instruction.
2.
Procedure Cover Page (all procedures) will include the EOP purpose, symptoms, and transition from other instructions.
The purpose should contain a brief statement that describes what is intended to be accomplished.
The symptoms should include a brief list of the conditions or parameters which might be observed prior to using the procedure.
The transition from other instructions section should include the list of EOPs which direct the operator to use the procedure.
An exception is E-0 which does not include the transition from other instructions section.
Refer to Figures 2 and 3 for examples of the procedure cover page.
3.
Instruction Step Pages (all procedures) will present the stepwise operator instructions in a two-column format.
The left-hand column is designated for operator actions and the right-hand column is designated for contir.gency actions when the expected response is not obtained.
Any immediate action steps will be identified by a note prior to the first action step.
, B022/aac
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Procedure steps will be numbered as follows:
1 liigh-level step a.
Substep
- 1) Substep a) Substep (Not desired)
Sdbsteps are lettered sequentially according to expected order of performance.
The completion of instructions steps will have END after the last step.
Refer to Figure 4 for an example of an instruction step page.
4.
Foldout Page (as required) will summarize only that information which an operator should have continuously available. Magins should be at least 3/4 inches.
5.
Appendixes (as required) will present non-graphical data to supplement action steps. The use of appendixes will be referenced in the instruction steps.
Each appendix should be uniquely identified and follow the instruction step pages.
The margin next to the ring binder should be at least 3/4 inches. The side margins should be at least 1/2 inches 6.
Figures (as required) will present graphical data to supplement action steps. The use of figures will be referenced in the instruction steps. The figures should be uniquely identified and follow the appendixes.
The margin next to the ring binder should be at least 3/4 inches. The side margins should be at least 1/2 inches.
7.
Status Trees (as required) will present decision blocks to direct the operator to the appropriate FRG.
Refer to Figure 5 for an example of the status tree format. B023/aac
C.
Writing Instructional Steps:
1.
Step Length and Content Instruction steps will be concise and precise.
Conciseness denotes brevity; preciseness means exactly defined. Thus, instruction should be short and exact.
General rules to be used for step length and content are as follows:
_ Instruction steps should deal with only one idea.
a.
b.
Short, simple sentences should be used in preference to long, compound, or complex sentences.
l Complex procedures shoutd be described in a series c.
of steps, with each step made as simple as practicable.
d.
All steps are assumed to be performed in sequence unless stated otherwise in a preceding note, Actions required in a particular step should not be e.
expected to be complete before the next step is begun.
If assigned tasks are short, then the expected action will probably be completed prior to continuing. However, if an assigned task is very lengthy, additional steps may be performed prior to completion.
If a particular task must be completed prior to continuation, this condition must be stated clearly in that step or substep.
f.
The objective of operator actions should be specifically stated. This includes identification of exactly what is to be done and to what.
If a step contains three or more action items, they should be listed rather than embedded in the sentence, g.
Plant parameters which are presented by instrumentation available in the control room should be specifically identified (Refer to F.5).
h.
Identification of components and parts should be complete (Refer to C.9).
i.
Instruction content should be written to communicate to the user.
Consideration should be given to the minimum number, qualifications, training, and experience of the operating crew.
(Refer to C.12) j.
Expected results of routine tasks need not be stated.
k.
When actions are required based on receipt of an annunciated alarm, list the setpoint of the alarm for ease of verification. B024/aac
1.
When requiring resetting or restoration of an alarm or trip, list the expected results immediately following the resetting or restoration if it would be beneficial to the operator.
When considered beneficial to the user for proper m.
understanding and performance, describe the system response time associated with performance of the instruction.
When system response dictates a time frame within n.
which the instruction must be accomplished, prescribe such time frame.
If possible, however, avoid using time to initiate operator actions.
Operator actions should be related to plant parameters.
Each action step should be completely contained on o.
one page.
For those infrequent occurences when a step must be continued on the subsequent page, the continuation will be identified on all pages that the step appears.
p.
When operator action steps should be continuously performed throughout the remainder of the procedure, then use the appropriate action verbs such as monitor, maintain, or control.
q.
Operator action steps which require verification should be denoted by the appropriate action verbs such as verify or ensure.
r.
Steps should be written as follows:
Action Verb---object.
s.
Positive or affirmative sentences should be used rather than negative ones, whenever possible.
2.
Instruction Steps, Left-Hand Column The left-hand column of the two-column format will be used for operator instruction steps and expected responses. The following rules of construction apply:
IIigh-level steps are those steps that tell the user a.
"what" to do.
Substeps of the high level step rray be used to tell the user ' how" to accomplish the high-level step.
b.
If only a single task is required by the step, then the high-level step contains its own EXPECTED RESPONSE. B025/aac
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Left-hand column tasks should be specified in sequence c.
as if they could be performed in that manner.
The user would normally move down the left-hand column
^
when the expected response to a particular step is obtained.
1
.d.
When the expected response is not obtained, the user is expected to move to the right-hand column for contingency instructions.
e.
All procedures should end with a transition to either another EOP or to some normal plant procedure.
t f.
Any immediate operator steps should be identified.
3.
Instruction Steps, Right-Hand Column The right-hand column is used to present contingency i
actions which 'are to be taken in the event that a stated i
condition, event, or task in the left-hand column does l
not represent or achieve the expected result.
Contingency actions will be specified for steps or substeps for which i
useful alternatives are available.
The following rules apply to the right-hand column:
Contingency actions should identify directions to a..
override automatic controls and to initiate manually 4
what is normally initiated automatically.
t b.
Contingency actions should normally be specified for steps or substeps for which the task requirement might not be satisfied.
However, to avoid excessive clutter, it is permissible to delete obvious contingency actions.
Contingency actions should be numbered consistently c.
with the expected response / action for substeps only, j
A contingency for a single-task high-level step will not be separately numbered but will appear on the same line as its related step.
d.
The user is expected to proceed to the next numbered step or substep in the left-hand column after taking i
contingency action in the right-hand column.
e.
As a general rule, all contingent transitions to other procedures takes place out of the right-hand column.
i
]
(Pre-planned transitions may be made from the left-hand j
column. )
f.
If a contingency action cannot be completed, the user is expected to proceed to the next step or substep in the left-hand column unless specifically instructed otherwise.
When writing the procedures, this rule of usage should i
be considered in wording subsequent left-hand column instructions.
1 B026/aac i
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,m -.-4 m p m m-ggwr,
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g.
If contingency action must be completed prior to continuing, that instruction must appear explicitly in the right-hand column step or substep.
4.
Use of Logic Terms Conditional statements or logic sequences are commonly used in EOPs to describe a set of conditions or a sequence of actions.
Because of their importance and complexity it is important that these statements be constructed using the principles and techniques of formal logic so that they are logically correct, unambiguous, and complete, i.e., that all statements are understandable and all conditions are covered.
The logic approach used should be applied consistently throughout the EOPs. Further, logic terms and sequences should be highlighted or emphasized so that the operator can clearly identify all conditions and the extent of a given logic sequence.
Logic terms should be highlighted for emphasis by capitalizing and underlining.
The logic terms AND, OR, IF, IF NOT, NOT, TIIEN, and WilEN, are often used m EOPs to describe a set of conditions, to sequence action steps contingent upon conditions, or to express complex combinations of conditions, other antecedents, and actions. Each of these logic terms should have a specific function, and should be used consistently within the EOPs and in accordance with an accepted convention.
Further, when used in combination, care must be taken to avoid vague and difficult to understand instructions.
In the discussion that follows, examples illustrating acceptable methods for using logic terms and combinations of logic terms, are presented Use of IF, IF NOT WIIEN, and TIIEN When action steps are contingent upon certain conditions or combinations of conditions, the step should begin with the words E, IF NOT, or WHEN followed by a description of the condition or conditions (the antecedent), and the word TIIEN, followed by the action to be taken (the consequent).
For example:
IF letdown can NOT be established, TIIEN establish excess letdown WIIEN cntmt press reduced to 2.81 psig, TIIEN place Cntmt Spray Pumps in standby Use of IF NOT should be limited to those cases where the operator must respond to the second of two possible conditions.
IF should be used to specify the first condition.
For example:
I_F (condition 1), TIIEN (action 1).
IF NOT, TIIEN (action 2) B027/aac
The logic word THEN should not be used at the end of an action to instruct the operator to perform another action within the same step, because it runs actions together.
For example:
Verify all accumulators are isolated, THEN depressurize RCS Actions which are embedded in this way (1) may be overlooked and not be performed, (2) make it difficult to verify the performance of each action step when a check-off or sign-off is used, and, (3) can be confused with a logic statement.
Use of AND Action steps will normally be performed in sequence so that a conjunction such as "and" is not required between the steps.
However, in the case of combinations of conditions, the word AND should be placed between the description of each condition.
For example:
IF Condition 1 AND Condition 2 AND Condition 3 THEN Action In order to simplify a long sequence of conditions, the word AND should not be used to join more than four conditions.
If more than four conditions need to be joined, a list format should be used. For example:
E all of the following conditions are met, a) Condition 1 b) Condition 2 c) Condition 3 d) Condition 4 e) Condition 5 TIIEN (action)
When used as a simple or compound conjunction, the word "and" need not be emphasized (e.g., to connect actions in a step, as in: "stop SI pumps and place them in standby"). B028/aac
Use of OR The word OR should be used to call attention to alternative combinationTof conditions. The use of the word OR for conditions, should be in the inclusive sense i.e., Ey, one or all conditions may be present.
For example:
IF_ Condition 1 9E IF, Condition 2 THEN Action For alternative actions, the use of OR should be minimized and priorities should be established where possible.
If priorities cannot be established, and alternative actions are equally acceptable, then it is necessary to specify the exclusive "or" using an approach similar to that illustrated in the example that follows:
Start either number 1 diesel O_R number 3 diesel, R
but not both.
Combinations of Logic Terms The use of AND and OR, along with I_F and TIIEN, within the same step should be avoided. When AND and OR are used together, the logic statements can be confusing-~and ambiguous.
For example:
IF condition A AND condition B OR condition C occurs.
TiiEN Action r
This statement has two possible meanings:
(1) IF both condition A AND condition B occur, TIIEN Action (2) IF both condition A AND condition B occur.
Ti!EN Action 0,R IF both condition A AND condition C occur, TlIEN Action If the use of AND and OR within the same step cannot be avoided, the more expliE form (as illustrated in examples 1 and 2 above) should be used.
. 13029/nac
5.
Use of Cautionary Information and Notes Because the present action-step wording is reduced to a.
the minimum essential, certain additional information is sometimes desired, or necessary, and cannot be merely included in training. This non-action information is presented as either a Note or a CAUTION.
b.
CAUTION denotes some potential hazard to personnel or equipment associated with the following instructional step.
c.
Note is used to present advisory or administrative information necessary to support the action instruction.
d.
To distinguish this information from action steps, it will extend across the entire page.
CAUTION or Note which must be observed prior to the e.
execution of a step shall precede the step.
CAUTION or Note applicable after the completion of a step may follow the step.
f.
The word CAUTION or Note should.be underlined.
g.
CAUTIONS and Notes should be able to be read completely without interruption by intervening steps or page turning.
h.
CAUTIONS and Notes should be accurate and concise.
i.
As a general rule, neither a CAUTION or Note will be used to replace an instruction / operator action step.
However, procedure transitions can be included as non-action information in a Note when absolutely necessary.
J.
Example:
Note:
Foldout page should be open.
k.
Each CAUTION and Note should be completely contained on one page.
6.
Calculations a.
Use of formulas or the need for calculations should be minimized.
b.
When calculations are required they should be simple.
Space should be provided to perform to computation c.
and to record the results, d.
If value has to be determined in order to perform a procedural step, a chart or graph should be used whenever possible. B030/aac
I l
l 7.
Emphasis t
Avoid overuse of underlining and capitalizations.
n.
b.
Underlining key words and phrases is permissible, but this practice should be used with discretion.
Too much underlining may result in reduced effectiveness; too little underlining may result in key words or phrases not standing out when necessary.
8.
Referencing and Branching to Other Procedures or Steps Information necessary to perform a task should be consolidated in one place, if possible. The need to go from one procedure (or part) to another during a sequence of actions is disruptive and can cause errors or unnecessary delays.
Consequently,
once the sequence of actions has begun, they should continue without interruption.
Reference to other parts of the Emergency Operating Procedures should be minimized. When cross-referencing is necessary, a method should be used which is quick, creates the least amount of disruption or chance of error, describes why the operator is leaving one part and going to another, and indicates i
if he or she needs to return.
For example, an EOP may call for starting a reactor coolant pump.
This action should be carried out following the steps specified in the system procedure, and it may be within the operator's capability to start a reactor coolant pump without providing the steps to do so in the EOPs.
The specific system procedure should, however, be referenced in the EOP, and used by the operator if necessary.
If the operator is expected to leave the current instruction and not return, then use the term "Go to".
If the operator is to use another instruction as a supplement but not leave the current instruction, then use the term " Refer to".
9.
Component Identification & Location With respect to identification of components, the following rules are to be followed:
a.
Equipment, controls, and displays will be identified in operator language (common usage terms). These terms may not always match engraved names on panels but will be complete, b.
When the engraved names and numbers on panel placards and alarm windows are specifically the item of concern in the procedure, the engraving should be quoted verbatim and emphasized by using all capitals.
c.
If the component is seldom used or it is felt that the component would be difficult to find, location information should be given following the identification.
[ Il031/nac
10.
Level of Detail Avoid excessive detail for routine operations.
Any a.
information which an operator is expected to know (based on training and experience) should not be included. The desired level of detail is one in which enough details are presented so that the operator has all the information he needs, but not so many details that the operator becomes burdened or confused by superficial or redundant information. The Validation and Verification Program will help determine if the level of detail is adequate.
b.
Constructing steps that are concise and precise will aid in i
reducing the level of detail. Many actuation devices (switches) in the control room are similar, even though the remotely performed functions are not.
Refer to F.4 11.
Placekeeping Aids It is important that the operator keeps track of the current step while he is performing the designated action.
If an operator cannot keep his place within the procedure without assistance, then the operator should use some type of markings on the step for a placekeeping aid.
Checkmarks or' initials are examples of acceptable placekeeping aids.
12.
Control Room Staffing and Division of Responsibilities a.
This section considers staffing in the control room, and the division of responsibility and leadership among the control room staff as it applies to the use of EOPs.
The variable nature of control room events and staff capabilities, and the turnover in control room shift crews, make the goals of this section difficult to achieve.
Ilowever, the following guidelines are important to the efficient and accurate development, and execution of EOPs, and should be followed to the extent possible.
b.
The EOPs should be structured so that the number of people required to carry out specific actions, concurrent actions, and other responsibilities, does not exceed the minimum shift staffing required by a plant's Technical Specifications.
1 L
4 l
'% B032/aac
T t
s During an emergency, it is vital that the actions of the c.
control room staff be carried out efficiently and accurately.
Thic will be determined in part by the quality of the EOPs and the training of the operators.
IIowever, for the benefits of good procedures and training to be realized, it is important that controY room personnel operate as a team with pre-established leadership roles and divisions of j esponsibility. The leadership roles and division of responsibilities are outlined in,the plant administrative
, instruction.
s d.
Tne number and qualifications of personnel available in the condol room will determine the number of sequential actions, concurrent actions and other responsibilities that can be carried out, and the efficiency with which they can be carried out. The following goals should be considered in writing the EOPs:
Minimize physical conflicts between personnel (carrying out actions at, the same locations at the same time, or crossing paths),
Avoid un'irpentional duplication of tasks by control room personnel, i
Ensure that the control room supervisor should be able to keep up with staff actions and plant status.
s, a
s D.
Foldout Page 1.
A single foldout page will be supplied for all E-series procedures.
The sheet will follow the last procedure of the series. The foldout page will be titled " FOLDOUT PAGE".
'Fh h set of operator information will have an explanatory title.
L
.c
- fne title will be capitalized end underlined for emphasis.
'4 x
s
's s
\\
t 33 B033/atic
\\
s 4g 6
't
E.
Status Trees 1.
Critical Safety Function Status Trees will be located in FR-0, Status Trees.
2.
The format and content should be consistent with the generic guideline.
Refer to Figure 5.
F.
Mechanics of Style 1.
Spelling Spelling should be consistent with modern usage.
When a choice of spelling is offered by a dictionary, the first spelling should be used.
2.
Punctuation Punctuation should be used only as necessary to aid reading and prevent misunderstanding. Word order should be selected to require a minimum of punctuation.
3.
Capitalization Capitalization may be used in the procedure for emphasis in the following cases:
a.
Plant Locations
- 1) Capitalize major plant areas or buildings e.g. Auxiliary Building b.
Systems and Components.
- 1) Capitalize the titles of plant systems e.g. Residual IIeat Removal System
- 2) Capitalize the title of major plant equipment e.g. Charging Pump
- 3) When words from a title of a system are used but do not reference the system directly, the words should be in lower case. B034/aac
j
.g
\\
Major headings should be fully capitalized.
c.
d.
Fully capitalize nameplate engravings, alarm window engravings, switch or circuit breaker positions and controller modes of operation.
Logic terms should be fully capitalized and underlined.
e.
f.
High level steps in the Expected Response column (left-hand edlumn of instructions) should be
- capitalized and underlined.
g.
Key expected values for plant parameter should be fully capitalized.
'i 4.
Vocabulary Words used in procedures should convey precise understanding to the traused person. The following rules apply.
a.
Use shnple words.
Simple words are usually short words of few syllables. Simple words are generally common words.
b.
Use common usage if it makes the procedure easier to understand.
Use.words that are concrete rather than vague, c.
specific rather than general, familiar rather than formal, precise rather than blanket.
d.
Define key words that may be understood in more than one sense.
e.
Some words have unique meanings.
Refer to Table 1 for a glossary of terms.
f.
In some ' cases, certain other words should be avoided simply because they are not adequately defined when used without modification.
These include:
rapidly and slowly.
The same words become acceptable when '
some clarification is provided.
Example:
Rapidly (up to 100 F/HR) cool down the RCS.
4 These. words can be used without clarification, when the meaning would not present confusion.
. B035/aac ~
5.
Numerical Values All numerical values presented in the procedures should a.
be consistent with what can be read on instruments in the control room (i.e., consistent with instrument scale and range).
b.
The number of significant digits presented should be equal to the reading precision of the indicator.
Acceptance values should be stated in such a way that c.-
any addition or subtraction operations are avoided, if possible. This is done by stating acceptance values as limits. Examples: 2500 psig maximum, 350 F minimum, between 450*F and 500 F.
I d.
Engineering units should always be specified when presenting numerical values for process parameters.
They should be the same as those used on the control room displays.
When a generic guideline specifies a numerical value e.
to be calculated, the method of derivation should be documented and verified.
f.
To identify values to be used during adverse containment conditions, the adverse containment values will be enclosed in brackets and the phrase l
FOR ADVERSE CNTMT will be enclosed with the setpoint.
g.
If a numerical value is used that includes decimal information (as opposed to fractions), and the numerical value is less than 1 and greater than -1, then the decimal point should be preceeded by a 0 (e.g., 0.25 or -0.25 rather than.25 or
.25).
6.
Abbreviations, Acronyms and Symbols I
a.
Minimize the use of abbreviations.
Abbreviations may be used where necessary to save time and space, and when their meaning is unquestionably clear to the intended reader.
b.
Periods should be omitted from acronyms and abbreviations.
The plural of an acronym should have no apostrophe c.
(i.e., RCPs).
d.
Refer to Table 2 for approved list of abbreviations and acronyms'.
Abbreviations and acronyms not on Table 2 should not be used. B036/aac
7.
Ilyphens The hyphen should be omitted unless its omission would a.
result in confusion.
b.
Examples for acceptable use of hyphens are:
U-235, N-16, pre-position, twenty-one and one-half.
G.
Graphs, Charts, Tables and Figures 1.
They should be legible, readable, and easy to use under the expected condition of use.
2.
Units of scale and measurement should be readily available and usable to the operator.
3.
Titles should be descriptive of contents and use.
4.
Printed aids should be compatible with the procedure.
5.
Graphs, charts, tables, and figures may be included in the instruction step pages or separately as an appendix or figure.
The instruction steps should explain the purpose and when the graph, chart, table, or figure should be used.
II.
Maintaining EOPs 1.
EOPs should be controlled within the existing plant document control system consistent with the administrative instructions.
2.
All copies of EOPs should be clearly legible. When it is necessary to replace the entire procedure because of revisions, use, wear, etc., the quality of the replacement copy should be equal to that of the original.
Personnel who reproduce pages should ensure that when copies are made, the entire page is reproduced (i.e., that no instrur:tions or parts of instructions are omitted).
3.
Periodically evaluate the EOPs considering the following:
Evaluation of the technical adequacy of the EOPs in light a.
of operational experience and use, training experience, and any simulator exercises and control room walk-throughs, b.
Evaluation of the organization, format, style, and content as a result of using the procedures during operations, training, simulator exercises and walk-throughs, Evaluation of staffing and staff qualifications relevant to c.
using the EOPs. B037/aac t
4.
When changes occur in the plant design, Technical Specifications, Technical Guidelines, Writer's Guide, other plant procedures or control room that will affect the EOP, the EOPs should be revised on a timely basis to reflect these changes.
In addition, when operating and training experience, simulator exercises, cru. ol room walk-throughs, or other information indicate that inertact or incomplete information exists in the EOPs, the EOPs should be revised on a timely basis.
These changes should be reviewed to ensure consistency with the Technical Guidelines and the Writer's Guide. Operators should be encouraged to suggest improvements to EOPs.
I.
Availability and Accessibility An adequate number of hard copies of EOPs should be available in the control room, and at other locations where the EOPs may need to be referred to (e.g., technical support center). The distribution of EOPs is controlled by the administrative instructions.
The location of EOPs within the contol room is primarily dictated by control room layout.
EOPs should be located so that they are immediately accessible to operators while they perform their control room duties.
Also, EOPs should be usable without interfering with work station activities and without covering up controls and displays.
Accessibility refers to the ease with which the operator can identify and access the relevent Emergency Operating Procedures. The EOPs should be uniquely identifiable and should be labeled to facilitate rapid identification and access to any procedure. B038/aac
TABLE 1: GLOSSARY Align Place systems or components (e.g., valves and breakers) in proper positions for accomplishing specified function.
Allow To permit a stated condition to be achieved.
For example, allow discharge pressure to stabilize.
Attempt To make an effort to perform a task.
This verb should only be used when there is a significant possibility the specified task may not be achieved.
I Begin To set into motion something that continues for some time.
l l
Block To prevent or inhibit the normal functioning of a device or control system.
Check To investigate the position or status of a specified function or variable.
Check should be used to indicate a strictly investigative process. No equipment or control devices should be manipulated when performing a " Check" function.
Close To change the physical position of a device to either prevent the flow of mass through the device (such as valves, doors, etc.) or in the case of breakers to permit the flow of electrical current.
Complete To perform a specified action or task to a final end.
Continue To maintain a course of action or to resume a course of action which was interrupted.
Control To manually or automatically operate equipment as necessary to satisfy procedure requirements.
l Decrease To cause a parameter to become smaller in magnitude.
(Avoid its use because of oral communication problems.)
l
" Lower" or " reduce" is preferred.
Determine To ascertain the status or to resolve a question through an investigative process.
Generally used to initiate an investigation upon which to base a decision.
Ensure To observe that an expected characteristic or condition exists and, if necessary, to take actions to make the i
condition occur.
Typically the expectation comes from some previous automatic or operator action. B039/aac
r Equalize The process of making two-or more variables the same.
Establish To bring about. To take necessary actions to cause a l
specified set of conditions to exist.
Evaluate To determine the significance or worth of something usually by careful appraisal or study.
Generally to formulate a decision regarding a course of action by careful study of applicable conditions.
For example, " Evaluate the need
. for continued containment spray system operation."
Faulted Used to describe a secondary system component with a feedwater or steam break.
Implement To carry out.
To initiate and maintain a prescribed course of action (s).
Increase To make or become greater or larger.
(Avoid its use because of oral communication problems).
" Raise" is preferred.
Initiate To commence or begin.
Generally used to cause the start or beginning of an effort which can not be completed in a short time.
Inspect To examine closely in a critical manner.
Generally used to require a search for a potential problem or error.
Intact Describes a steam generator which has neither a tube rupture nor is faulted.
Local An action performed by the operator outside the control (Locally) room.
Lower To cause a parameter to become smaller in magnitude.
Maintain To control a given plant parameter to some procedure requirement continuously.
Manual An action performed by the operator in the control room.
(Manually)
(The word is used in contrast to an automatic action, which takes place without operator intervention.)
Monitor Similar to " check", except implies a repeated function.
Normal A value of a process parameter experienced during routine plant operations.
Open To change the position of a mechanical device to either permit the flow of mass through the device (such as valves, doors, etc.) or in the case of breakers to prevent the flow of electrical current. B040/aac
Operate To turn on or turn off as necessary to achieve the stated objective or function.
Place To direct to a specific location.
Generally used to direct the movement of a control device to a specified position.
When used there should be direct correspondence between the directed position and the actual position as indicated on the associated control.
Prepare To make ready for some purpose, use or activity.
To plan in advance for an activity.
Generally used to require all advanced planning and initial conditions be completed prior to performing a related activity.
Prevent To keep from happening.
Generally used to direct any necessary actions to preclude an action or condition from occurring.
Raise To cause a parameter to become larger in magnitude.
For example, " Raise RCS pressure."
Record To set down in writing.
Generally used to require the writing of information so as to create a permanent reference.
Reduce To cause a parameter to become smaller in magnitude.
For example, " Reduce RCS pressre."
Refer Use as a supplement.
Perform applicable actions of cited procedure and return to the controlling procedure.
Reset To restore to an initial or previous state.
Generally used to direct the placement of a component or control device to a pretripped or to a ready / standby condition.
Restore To return to a former original condition.
Generally used to require the reinstatement of a system or broad function to a pretripped or a ready / standby condition.
Ruptured Used in describing a steam generator with a tube break.
Set To adjust a device, especially a measuring or control device, to a desired position.
Generally used to direct the positioning of a variable control device.
For example,
" Set diesel speed to 720 rpm."
i,
B041/aac
Shall Implies mandatory requirement.
Should Implies nonmandatory, preferred, or desired method.
Shutdown To stop or cease to operate.
Generally used to direct the placing of a system or complex piece of equipment in a normal nonoperating condition.
Stable In reference to process parameters, it means controllable
. within some desired range.
Start To begin an activity or undertaking.
Generally used to direct the placing of a piece of equipment from a shutdown to a running condition when such action is achieved by the placing of a control device in a corresponding " start" position.
Stop To cease an activity or to cause an activity to cease.
Generally used to direct the placing of a piece of equipment from a running to a shutdown condition when such action is achieved by the placing of a control device in a corresponding "Stop" or "Off" position.
Terminate To bring to an end or to cease an activity.
Generally used to direct the cessation of a system or complex function.
Throttle To control the flow of a fluid, usually by manipulation of a valve. Generally used to direct the operation of a valve or valves in an intermediate position to control fluid flow.
" Control" is preferred.
Trip To direct the manual actuation of a control which will cause the associated device to cease operation in a short time frame.
Vent To permit a gas or liquid confined under pressure to escape at a vent (e.g., " vent.
. pump").
Verify To observe that an expected characteristic or condition exists and, if necessary, to take actions to make the condition occur. Typically the expectation comes from some previous automatic action.
i
, B042/aac
(
TABLE 2 ABBREVIATIONS AND ACRONYMS FOR EOPS ABGTS -
auxiliary building gas treatment system AC alternating current ACB air current breaker AFW auxiliary feedwater AHU air handling unit AI Administrative Instruction amp ampere AOI Abnormal Operating Instruction AUTO automatic Aux auxiliary Avg average BA boric acid BAT boric acid tank bd board BIT boron injection tank brk breaker Bldg building BOP bearing oil pump CCP centrifugal charging pump CCS component cooling water CCW condenser circulating water Chem chemistry entmt containment compt compartment CRDM control rod drive mechanism CST condensate storage tank CVCS chemical and volume control system DC direct current D/G diesel generator DI demineralizer ECCS emergency core cooling system EGTS emergency gas treatment system elev elevation ERCW essential raw cooling water
- B043/aac
TABLE 2 (Continued)
ABBREVIATIONS AND ACRONYMS FOR EOPS FCV flow contorl valve FI flow indicator ft feet gal gallon GOI General Operating Instruction gpm gallons per minute HCV hand control valve HL hot leg HP Health Physics or high pressure HS hand switch HUT holdup tank IR intermediate range LCV level control valve max maximum MFW main feedwater min minutes MSIV main steam isolation valve MSR moisture separator reheater MG motor generator NIS nuclear instrumentation system NR nuclear recorder NRC Nuclear Regulatory Commission PD positive displacement pnl panel PORV power operated relief valve PR power range press pressure PRT pressurizer relief tank psi pounds per square inch psid pounds per square inch differential psig pounds per square inch gauge P-T pressure-temperature pzr pressurizer B044/aac
TABLE 2 (Continued)
ABBREVIATIONS AND ACRONYMS FOR EOPS RCP reactor coolant pump RCS reactor coolant system recire recirculation reg regulation REP Radiological Emergency Plan RHR residual heat removal system RM radiation monitor RPI rod position indicator rpm revolutions per minute RR radiation recorder RTD resistance temperature detector RVLIS reactor vessel level indication system RWST refueling water storage tank Rx reactor seconds see SFP spent fuel pit S/G steam generator SGTR steam generator tube rupture SI safety injection SI-xxx -
Surveillance Instruction SOI System Operating Instruction SR source range SRO senior reactor operator SUR startup rate
- B045/aac
TABLE 2 (Continued)
ABBREVIATIONS AND ACRONYMS FOR EOPS T-avg -
average temperature T/C thermocouple Tech Spec technical specifications Temp temperature TI Technical Instruction T-ref reference temperature TSC technical support center turb turbine UHI upper head injection
.VAC volts, alternating current VCT volume control tank VDC volts, direct current Vent ventilation WR wide range
- B046/aac 1
FIGURE 1 PLANT COVER PAGE 1
e j
TENNESSEE VALLEY AUTHORITY
?
I SEQUOYAM NUCLEAR P!. ANT f
i EMERGENCY INSTRUCTION Procedure title Ej and number REACTOR TV.!P OR SAFETY INJEC70N 5
Revision I PREPARED BY:
G. Strickland RESPONSIBLE SECTION: Operationt Review and approval
/ c,f,. g,/,
yyy,3g,gy, dates and signatures f
f f
SUBMITTED BY:J jf 2,/ t
, v/,
Responsible Syction Superviscr PORC REVIEW DATE:
b5 APPROVED BY:
%-( j
@th Pl ar.: Pfanager DATE APPROVED:
b J2 Reason for revision (include all Instruction Change Form Nos.):
Revised to add transition from other instruction.s: add note to rnonitor status trees.
Total number of pages The last page of this instruction is nu.mber:
12 l
1 1
)
1
I 1
FIGURE 2 PROCEDURE COVER PAGE E-0 Left margin 10 Right margin 90 i
Line 4--heading Saxe centered E-0 Unit 1 or 2 Page 1 of 12 Rev.0 Title centered
([
REACTOR TRIP OR SAFETY INJECTION A.
PURPOSE This guideline provides actions to verify proper response of the i
automatic protection systems following manual or automatic actuation At least tripl'e of a react r trip or safety injection, to assess plant conditions, and to identify the appropriate recovery guideline.
spaced 7
B.
SY>fPTO>tS 1.
Symptoms of a reactor trip; a.
Any reactor trip annunciator tit b.
Rapid decrease in neutron level indicated by nuclear instrumentation
{
c.
All control rods fully inserted. Rod bottom lights lit d.
Rapid decrease in unit load to zero power.
I 2.
Symptoms of a safety injection:
l a.
Any SI annunciator tit b.
ECCS pumps in service b
Line 63--page number centered 1
i FIGURE 3 PROCEDURE COVER PAGE FR-S'.1 Left margin 10 Right margin 90 Line 4--heading SgNP centered 1
L' nit 1 or
- Page 1 of 5 Rev. 1 Title centered
(
- ENSE TO NMEAR PWER GENER ATION/AWS A. PURPOSE This guideline provides actions to add negative reactivity to the core.
B.
SY3fPTO3fS At least riple 1.
Power range greater than 5%
spaced 2,
3,t,,,,,1,1,
,,ng, po,itiy,,torrup,,,,
C. _ TRANSITION FRO 31 OTIIER INSTRUCTIONS
)(c 1.
E-0, Reactor Trip Or Safety Injection p
2.
Statu: Tree FIGURE 4 INSTRUCTION STEP PAGE Left margin 10 Right margin 90
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Tab 19 Tab 65 SQNP E-0 Unit 1 or 2 Page 2 of 12 Rev. 1 REACTOR TRIP OR SAFETY INJECTION
\\f A STEP ACTION /ENPECTED RESPONSE RESPONSE NOT ORTAINED Tab 10 M: Steps I through 13 are !>D1EDIATE ACTION STEPS.
M: Foldout page should be open.
p g: Status Trees should be monitored when transitioned out of this p.
mstruction.
At least double 1
Venfy Reactor Trip E reactor can M be
. Spaced trapped.
)
a.
Rod bottom lights - ON THEN go to
- FR-S. I.
RESPONSE TO NL' CLEAR b.
Reactor trip breakers - OPEN POWER GENERATION /ATWS c.
RPIs at 0 STEPS At least triple
{
d.
Neutron riux - DECREASINC spaced
)
2 Venfy Turbine Trip a.
All turbine stop valves -
CLOSED 3
Venfy Shutdown Boards Enerrized g one complete train of shutdown boards energtred, a.
Generator breakers - OPEN
-TIIEN continue with the next (nonna11y 30 sec delay) step b.
Station service transferred E no complete tram of shutdown boards energued, k
c.
Voltage on shutdown boards M
TIIEN go to
- ECA-0.0.
LOSS OF ALL AC POWER.
4 Check If St Actuated IF St NOT actuated and hpT required.
TiiEN go to
REACTOR TRIP RESPONSE -
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O SQN Q
FR-0 Unit 1 or 2 Page 1 of a
-y Rev. 1 SUBCRITICALITY 1FRS F-0.1 Ch Y
H N
H GO TO F R-S.1 NO POWER R ANGE D
LESS THAN ss YES 1
II ll ll ll ll
.Il l
co '.o e
FR-S 1 g
M O
GO TO INTERMED. R ANGE NO INTERMED. RANGE SUR MORE FR-S.2 NO SUR ZERO NEGATIVE THAN
_ ] 0" OR NEGATIVE YES
-0.2 OPM YES 6
NO SOURCE HANGC ENERGIZED YES GO TO NO FR-S.2 SOURCE RANGE SUR ZERO 0"
OR NEG ATIVE YES
$0N-3-318-909-5 *t
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