ML091940094

Response to Request for Additional Information on Program for Construction Refurbishment

ML091940094
Person / Time
Site:	Watts Bar
Issue date:	07/08/2009
From:	Bajestani M Tennessee Valley Authority
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
TAC MD6581
Download: ML091940094 (53)

Text

Tennessee Valley Authority, Post Office Box 2000, Spring City, TN 37381-2000 July 8, 2009 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Stop: OWFN P1-35 Washington, D.C. 20555-0001 In the Matter of ) Docket No. 50-391 Tennessee Valley Authority )

WATTS BAR NUCLEAR PLANT (WBN) UNIT 2- RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION ON PROGRAM FOR CONSTRUCTION REFURBISHMENT (TAC NO. MD6581)

References:

1. TVA letter dated December 9, 2008, "Watts Bar Nuclear Plant (WBN) -

Unit 2 - Licensing Basis Preservation and Construction Refurbishment Program for Structures, Systems and Components (SSCs)

(TAC NO. MD6311)"

2. NRC letter dated April 28, 2009, 'Watts Bar Nuclear Plant, Unit 2 - Request for Additional Information on Programs for Licensing Basis Preservation and Construction Refurbishment (TAC NO. MD 6581)"

In Reference 1, TVA submitted Procedure 25402-000-GPP-0000TI216, 'Watts Bar Unit 2 Completion Project Refurbishment Program" (T1216). In Reference 2, NRC requested that TVA provide a discussion of the rationale for the selection of components to be refurbished based on the expected degradation mechanisms and the guidance that will be used to ensure the objective and consistent application of refurbishment activities.

Most of the WBN Unit 2 safety-related and quality-related equipment was installed during original construction. T1216, as amended, is designed to ensure that the equipment is still capable of performing its required function in accordance with design specifications. The WBN Unit 2 Completion Project will perform inspections/evaluations, refurbishment, replacements, and system testing to ensure the plant meets its original design specifications. The safety-related and quality-related SSCs will be inspected/evaluated for pre-service degradation in accordance with the requirements of T1216 to ensure that the item is capable of meeting its design specifications and vendor functional specifications.

Printed on recycled paper

U.S. Nuclear Regulatory Commission Page 2 July 8, 2009 The implementing procedures are being prepared or revised to align with T1216, the upper tier procedure. Enclosed is the revised T1216.

If you have any questions, please contact me at (423) 365-2351.

Sincerely, Masoud Baje t ni Watts Bar Un t Vice President Enclosure cc (Enclosure):

Lakshminarasimh Raghavan U.S. Nuclear Regulatory Commission MS 08H4A One White Flint North 11555 Rockville Pike Rockville, Maryland 20852-2738 Patrick D. Milano, Senior Project Manager U.S. Nuclear Regulatory Commission MS 08H4 One White Flint North 11555 Rockville Pike Rockville, Maryland 20852-2738 Loren R. Plisco, Deputy Regional Administrator for Construction U. S. Nuclear Regulatory Commission Region II Sam Nunn Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303-8931 U. S. Nuclear Regulatory Commission Region II Sam Nunn Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303-8931 NRC Resident Inspector Unit 2 Watts Bar Nuclear Plant 1260 Nuclear Plant Road Spring City, Tennessee 37381

TVA WATTS BAR NUCLEAR UNIT 2 CONSTRUCTION COMPLETION PROJECT PROCEDURE, Unit 2 Construction Refurbishment (CRF) 25402-000-GPP-OOOO-TI216 Watts Bar Unit 2 Completion Project Refurbishment Program Revision 0002 Level of Use: Information Use Quality Related: Yes 0' No 0I ASME: Yes Ef No f3 Effective Date:. l '1- D q Responsible Organization: CRF Prepared by: Mike Brady Date:

Reviewed by: RogerLandis Date: 7-/-- .

Approved by: PFE James R. Johanson cQ('.-' Date: 7/1/1 o .

Approved by: PFQCE David Soberski Date:

Approved by: CM Allan Aldridge Date: S" 0 rp.

Approved by: PEM Jim Robertson Date: 7z- o9 Approved by: PQAM Ronald J. Kuhn '2, Tva,& Date: yb/ --

Approved by: MQS Ronald J. Kuhn 64.-6Date: , V,-Dat, Reviewed by: TVA-CM Jerry V. Schlessel Date: (A69 Reviewed by: TVA-EM William D. Crouch V, ý - Date, 7 610?

Reviewed by: TVA-PQAM Raul Baroc  :ý Date: 7 =/,7og/

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 2 of 51 Revision Log Revision Affected or Change Effective Page Number Date Numbers Description of Revision/Change 0000 11/05/2008 All Initial issue 0001 06/24/09 All This revision is a major rewrite.

Revised, renumbered pages and added Attachments on Table of Contents. Changed (2) approvers on the cover sheet (Bill Crouch and Jim Robertson replace Roger Poole and Dave Tooker, respectively).

Section 1.0, 2.0 and 6.0 rewritten. Section 3.0, added new definitions for Classification, Evaluation, Identification, Pre-Service Degradation, Replacement, and System Testing. Listed in alphabetical order.

Added 2nd sentence for Inspections, added 'buffing' to Cleaning, added to 2nd sentence of Refurbishment and added 'component specific' to Component Testing. Added TI-12.08 and TI-404 to Section 4.0. Replaced SPP-9.2 with N-1 106 and added QCD-0001 in Section 4.0. Section 5.0, added PEM and Project Eng. Added 1st bullet at PFE and added to sentence at 3rd bullet. PFE chg'd to primary contact for ANI. At Refurb FE, added 1st and 4th bullets. Removed PFQCE and OCE from Section 5.0. At Subsection 6.1, added the word

'testing' to 1st sentence of 2nd paragraph and added 2nd sentence to 2nd paragraph. At Subsection 6.2, replaced Exclusions with Process and added 6.2.1, 6.2.2, 6.2.3, 6.2.4 and 6.2.5. Added Attachments 1, 2, 3 and 4. Added Active or Passive throughout procedure.

0002 T-7-9 1,2,4,5,6, Chg'd TVA from 'Concurrence' to 'Reviewer' on cover sheet. Section 8, 11, 12, 1.0, removed major rewrite note. Subsection 1.0.A, added 'original 13, 14, 15, licensing' and replaced 'design' with 'vendor'. Reworded and 16, 18, 30 expanded Subsection 1.0.C. Reworded and expanded last sentence through 41 of Subsection 1.0.D. Section 2.0 divided into four paragraphs, reworded and removed the word 'but' form 2nd and 3rd sentence of last paragraph, and removed the word 'via' from 5th sentence. Section 3.0, expanded definition of Component Testing, added Corrective Action Program definition, and redefined Equipment Functional Status.

Added Subsections 4.OM, 4.ON, 4.00 AND 4.OP. Added to Section 6.2. Subsection 6.2.1, added 3rd and last sentence to 1st paragraph and removed 1st sentence of 3rd paragraph. Subsection 6.2.2, added Attach. 2 and 4 to 1st sentence. Subsection 6.2.3, added 'licensing' to 1st paragraph, added 2nd, 4th, 8th and 12th paragraphs, added 'pre-service to 3rd paragraph, revised and added to 9th paragraph, added last sentence to 10th paragraph, added 'contactor oxidation', and last three sentences to paragraph 13, added 'expected' to 1st sentence and added 2nd and 3rd sentence to 15th paragraph. Added 5th paragraph to Subsection 6.2.4. Expanded Subsection 6.2.5.

Subsection 6.3, added Form N-5 and Data Reports N-1, N72, NPV-1, NPP-1. Added 2nd paragraph to Section 7.0. Revised Attach 1.

Attach 3, added 'Tracking Process' to header and added 'CAP', 'Eng Report' and 'Ref 4.OF' to 1st column.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 3 of 51 Table of Contents 1.0 PURPOSE .................................................................................................................... 4 2.0 SCOPE .......................................................................................................................... 5 3.0 DEFINITIONS ............................................................................................................... 6

4.0 REFERENCES

......................................................................................... 8 5.0 RESPONSIBILITIES ................................................ 8 6.0 REQUIREMENTS ...................................................................................................... 10 6.1 General Requirements ......................................................................... ..................... 10 6 .2 P ro ce s s ...... ..................... ........................................................................................... 10 6 .2 .1 Id e n tific a tio n ............................................................................................. . . 11 6.2.2 Classification ............................................................................................. 12 6.2.3 Inspection / Evaluation .............................................................................. 12 6.2.4 Refurbishment / Replacement ......... ............................... 15 6.2.5 Component / System Testing ................................................................... 16 6.3 ASM E Section III Special Requirements ................................................................. :16 7.0 RECORDS ................................ I................................................................................... 16 8.0 ATTACHMENTS ..................................................................................................... 17 : Work Process Flow Chart ................................... 18 : Equipment / Component Functional Categories ................. 19 Attachm ent 3: Inspection Matrix ................................................................................. 30 Attachm ent 4: Function Code List ................................................................................ 42

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 4 of 51 1.0 PURPOSE A. This instruction provides the guidance for the Watts Bar Unit 2 Construction Completion Project (WB2CCP) refurbishment program for active and passive safety related, quality related and non-quality related equipment. This instruction also identifies requirements for evaluation of pre-service degradation of active and passive safety related, quality related and non-quality related equipment which will not be replaced or refurbished. Most of the equipment was installed during the original construction period. Since layup activities were terminated for a period of time after 2001, it is necessary to ensure the equipment is still capable of meeting its required specifications. The project will perform inspections / evaluations, refurbishment / replacements, and system testing to ensure the plant meets its original licensing, design and equipment vendor specifications.

B. The refurbishment program consists of five steps:

1. identification

2. classification

3. inspection / evaluation

4. refurbishment / replacement

5. component / system testing C. Unit 2 equipment found to be acceptable (i.e, capable of meeting its licensing, design and vendor specification) via inspection/evaluation will be tracked either via Reference 4.0F or via a separate engineering report for a Corrective Action Program (CAP), Special Program or other individual commodity report.

Equipment which will be refurbished to meet its design and vendor specifications will be identified and then tracked/processed via reference 4.OF.

D. Criteria are provided for the various types of inspections / evaluations for each type of equipment / component coupled with detailed implementing instructions provided in lower tier procedures. The engineering programs and reference 4.0F will provide the guidance as the lower tier implementing procedures, as appropriate. The specific inspection/refurbishment activities required for a given component will require review of the licensing, design and vendor requirements and specifications, vendor manuals and other vendor technical documents, and applicable code requirements.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 5 of 51 2.0 SCOPE This instruction applies to all active and passive WBN Unit 2 safety related, quality related and non-quality related equipment required for Unit 2 operation. This equipment falls into two groups. The first group consists of those structures, systems (or portion of systems), and components (SSCs) that are shared between Unit 1 and Unit 2 (common equipment) and are in operation supporting Unit 1. The second group consists of the remaining Unit 2 SSCs which have not been in operation to support Unit 1.

The population of the first group of SSCs is defined, monitored, trended, and reported in accordance with the Unit 1 Maintenance Rule requirements. The Unit 1 Maintenance Rule Program monitors the performance or condition of structures, systems, and components, against performance criteria, in a manner sufficient to provide assurance that such SSCs are capable of fulfilling their intended function.

Examples of common SSCs currently in service are the Emergency Diesel Generators, Essential Raw Cooling Water pumps and isolation valves, Diesel Generator Building, Intake Pumping Station, Control Building and Auxiliary Building.

Some of the Unit 2 piping on the Unit 1 side of the Unit 1/2 operational boundary has been filled with water but under stagnant conditions since Unit 1 startup. This piping which has been monitored under the Unit 1 Maintenance Rule Program will be identified and confirmed to be satisfactory for Unit 2 operation. This confirmation will consist of inspections, flushes and/or ultrasonic test (UT) inspections of the affected piping as described below.

All SSCs required for Unit 2 operation shall be identified using the Unit 1 and Unit 2 Master Equipment List (MEL) and the associated unique identifiers (UNIDs). SSCs associated with the first group (i.e., inservice supporting Unit 1 operation) will be identified and then excluded from this procedure since they are currently monitored by the Unit 1 program which ensures that the equipment will be capable of meeting its design criteria. In the second group, non-licensed Unit 2 equipment which has been or will be replaced prior to startup will be identified and then excluded from this procedure since the new equipment will not be subject to pre-service degradation due to the relatively short time span from installation to system startup. For the remaining Unit 2 equipment, some items will be refurbished while others will be inspected / evaluated. Refurbishment will be conducted in accordance with Reference 4.OF to restore a component to its licensing/design specifications or vendor specifications (i.e. restore to like new performance). The rest of the safety related and quality related SSCs will be inspected / evaluated for pre-service degradation in accordance with the requirements of Attachment 3 and documented as discussed in Section 6.2.3 to ensure that the item is capable of meeting its design specifications and vendor functional specifications.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 6 of 51 3.0 DEFINITIONS Classification - The process of categorizing equipment / components into functional categories of equipment / components (e.g., structures, pumps, motors, valves, chillers, piping, hangers, transmitters, controllers etc.).

Cleaning - Removal of dirt and other contaminants using pressurized air, water, approved solvents, buffing, etc., as necessary.

Component Testing - Industry standard or special component tests consisting of actions such as instrument calibrations, flushing, and functional testing of individual components (i.e., air operated valves, motor operated valves, electrical motors, etc) intended to demonstrate compliance with component specific specifications and requirements.

Corrective Action Program/Special Program - A program described in the Nuclear Performance Plan, Volume 4 to correct equipment and programmatic related deficiencies identified by TVA and the NRC prior to Unit 1 operation.

Design Criteria - The requirements that ensure the system, structures and components meet the parameters of the safety analyses.

Equipment Functional Status - A component having any subpart which can physically move will be considered "active" (versus "passive") regardless of its need to move to support plant operation or safety analyses. Components having no moving parts will be considered "passive".

Evaluation - The process for determining if the applicable pre-service degradation mechanism has impacted the associated equipment / component's ability to meet its original design specifications.

Excluded Equipment / Components - Equipment / Components to be replaced with new equipment / component or equipment in service supporting Unit 1.

Identification - Identification of all safety related, quality and non-quality related equipment / components required for Unit 2 operation and equipment / components required for dual unit operation (i.e., Unit 2 or common (Unit 0) equipment currently in service to support unit 1 operation).

Inspections - Disassembly to the extent necessary to Verify or measure critical attributes which may be affected by time, cleanliness, conditions of bearing or seating surfaces or components. Inspections include both internal and external aspects of the item.

Lubrication - Removal of old grease / oil from reservoirs, bearings, and other lubricated components and replacement with vendor specified or other engineering approved lubricants.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 7 of 51 3.0 DEFINITIONS (continued)

Pre-Service Degradation - Degradation mechanisms (e.g., physical damage, corrosion, hardening of grease or gaskets, etc) that have affected previously installed Unit 2 equipment which has not been in service and which may prevent equipment / components from meeting design specifications or vendor specifications.

Refurbishment - Performance of activities to restore a component to its design specifications or vendor specifications (i.e. restore to like new performance).

Replacement - Replacement of degraded equipment and / or parts which are not expected to meet the equipment's specifications or which would potentially fail over time, such as gaskets, packing, elastomers, etc. Replacements can also occur as either part of modifications to make Unit 2 equipment match equipment in Unit 1 or to replace obsolete/missing Unit 2 equipment or as a result of historical document issues such as 10 CFR Part 21, construction deficiencies, PERs, etc.

System Testing - NRC Regulatory Guide 1.68 testing to demonstrate that the plant systems are capable of meeting the applicable system design criteria. The NRC Regulatory Guide 1.68 test program, while a demonstration of overall system and component readiness for operation, will not be tracked by this program.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 8 of 51

4.0 REFERENCES

A. WB2CCP Bechtel Nuclear Quality Assurance Manual (PNQAM)

B. Bechtel Nuclear Quality Control Manual (NQCM)

C. WB2CCP Bechtel Construction Operations Incorporated (BCOI) Bechtel Quality Assurance Manual (BQAM) ASME Section III Division 1 - Part 2, Addenda D. WB2CCP Bechtel Power Corporation (BPC) Bechtel Quality Assurance Manual (BQAM) ASME Section III Division 1 - Part 2, Addenda E. Construction Completion Project Procedure (CCPP) 25402-000-GPP-0000-N1206, Work Order Processing F. CCPP 25402-000-G PP-0000-N 1302, Component Refurbishment Evaluation G. CCPP 25402-000-GPP-0000-N3505, Piping System Cleanliness H. CCPP 25402-000-GPP-0000-N1106, Equipment Environmental Qualification I. CCPP 25402-QCD-0001, ProjectNuclear Quality Control Plan J. TVA Technical Instruction TI-1 2.08, Control of Unit Interfaces K. TVA Technical Instruction TI-404, Unit Two Separation During Construction/

Startup L. NEI 95-10, Appendix B, Typical Structure, Component and Commodity Groupings and Active / Passive Determinations for the Integrated Plant Assessment M. CCPP 25402-MGT-0003, Corrective Action Program N. TVA Startup Manual Procedure SMP 8.0, Packagingand Processing Test Results

0. TVA Startup Manual Procedure SMP 11.0, Component Test Program P. TVA Startup Manual Procedure SMP 12.0, PreoperationalTest Matrix 5.0 RESPONSIBILITIES Proiect Enqineerincq Manaqer (PEM)

• The PEM is responsible for approval of this procedure.

. The PEM is responsible for ensuring that the requirements of this procedure are properly implemented.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 9 of 51 5.0 RESPONSIBILITIES (continued)

The PEM is responsible for obtaining TVA Engineering concurrence on the scope of activities for each category of equipment in Attachment 3.

Construction Manager (CM)

• The CM is responsible for approving and ensuring that the requirements of this procedure are implemented in lower tier implementing procedures.

Proiect Field Engineer (PFE)

• Implementing this procedure with lower tier implementing procedures.

• Assigning and supervising the Field Engineering personnel assigned to provide technical support.

• Assuring that assigned personnel have the required training and experience to implement the requirements of this procedure and the lower tier implementing procedures

• Implementing this procedure and providing project direction and technical assistance for the Refurbishment Field Engineers

• The PFE is the primary contact with the ANI on the project site.

Proiect Field Quality Control Engineer (PFQCE)

• Responsible for providing technical and administrative guidance to Quality Control Engineer (QCE's).

Quality Control Engineer

• Perform quality related inspections for those activities that are classified as Safety Related and Quality Related.

• Prepare quality control documentation and maintain quality control records.

Refurbishment Field Engineer

• Using Reference 4.OF, prepares a listing of initial scope of components in accordance with the scope of this procedure.

• Proposes a determination of refurbishment requirements.

" Ensures, after approval of the scope and evaluation that WO's are prepared to accomplish the activities and are in a retrievable database type program.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 10 of 51 5.0 RESPONSIBILITIES (continued)

• Ensures the results of the refurbishments are documented as described in this procedure.

Proiect Refurbishment Group Manager Responsible for direction and oversight of the refurbishment group, including processes for scope identification and control, work item evaluations, work order planning and execution, and tracking of item completion.

Proiect En-gineeringq

• Provides program level input and oversight.

" Reviews and concurs with the scope determination and refurbishment evaluations.

• Evaluates commodities / features which do not have UNID's. Based on evaluations, recommends accept-as-is, refurbish or replacement as appropriate.

6.0 REQUIREMENTS 6.1 General Requirements It is critical that all personnel performing activities associated with construction completion at WBN2 be aware of the importance of maintaining "Unit Separation" and have no effect on Unit 1 or common systems and components. Refer to TVA procedure TI-404, Unit Two Separation During Construction/ Startup and TI-1 2.08, Control of Unit Interfaces.

In general, refurbishment will involve inspections, cleaning, flushing, lubrication, replacement of shelf life limited parts (such as gaskets, packing, elastomers etc.)

and testing. In some cases, it may be more economical to replace whole components rather than refurbish sub-parts of a component. Consideration shall be given to specific engineering requirements such as environmental qualification (EQ) when establishing the refurbishment activities required for specific components.

Lessons learned for reliability issues noted during Unit 1 operation will also be considered while establishing refurbishment activities for a given component.

6.2 Process Attachment 1 contains a work process flow chart as described below.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 11 of 51 6.2 Process (continued)

The process will identify all equipment required to operate Unit 2. The process will then identify equipment currently addressed by Unit 1 Maintenance Rule programs.

If this equipment is capable of meeting its licensing / design / vendor specifications, no further action is required. Otherwise, this equipment is refurbished/replaced.

The Unit 2 specific equipment is categorized using the criteria in Attachment 2 and a predetermination made as to whether a refurbishment/replacement will be performed. Equipment which is expected to only require inspection/evaluation is also denoted in Attachment 2. For equipment which will be inspected / evaluated, Attachment 3 provides the inspections which will be performed and the expected degradation mechanisms.

The details of this process are provided below.

6.2.1 Identification Identification of all WBN Unit 2 safety related, quality related and non-quality related equipment required for Unit 2 operation will be accomplished using the Unit 2 Master Equipment List (MEL). Similarly, the identification of all safety related, quality related and non-quality related equipment currently in service to support Unit 1 operation but required for Unit 2 and / or dual unit operation (e.g., common equipment) will utilize the Unit 1 MEL. Equipment which is quality related only due to Seismic II / I issues will be considered as non-quality related equipment for the purpose of this procedure except for Seismic II / I related parameters. The identified equipment will be documented by unique equipment identifier (UNID) in an equipment matrix / form in accordance with Reference 4.OF. (Interface Points and isolations will be included in this procedure). Quality Assurance will perform oversight on this process as required by References 4.OA, 4.0C and 4.0D.

Some plant features (e.g., piping/tubing, pipe supports, conduit/conduit supports, concrete, coatings, etc) do not have UNIDs but will be addressed on a commodity type basis. Items which do not have UNIDs will be identified by Engineering within the appropriate Engineering programs (e.g., IE Bulletin 79-02/14, HVAC duct Corrective Action Program, Coatings Program, etc).

Additionally, equipment / components to be replaced (i.e., new equipment) are then excluded from the scope of the below process since no pre-service degradation would have occurred. These determinations will be documented in the equipment matrix / form.

The above process of identifying the affected Unit 2 equipment will be documented via Reference 4.OF and the associated engineering programs.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 12 of 51 6.2.2 Classification As shown in Attachment 2, the equipment / components have been divided into functional categories of equipment / components (e.g., structures, pumps, motors, valves, chillers, piping, pipe hangers, transmitters, controllers, etc.) using the function codes contained in MEL (Attachment 4). For those items which do not have UNIDs (e.g., piping / tubing, pipe supports, conduit supports, concrete, coatings, etc), the commodity type has been used. The category assignments for safety related and quality related commodities are documented in the equipment category matrices grouped for mechanical, electrical, and I&C equipment / components and civil components / structures (Attachment 2).

6.2.3 Inspection / Evaluation For equipment which will be refurbished, the licensing/design specifications and vendor technical documents will be used via Reference 4.OF to ensure the equipment is capable of meeting its original licensing / design / vendor functional requirements. Refurbishment will restore a component to a like new condition. No other inspection / evaluation is required for this equipment. For inspections which require disassembly, work will be performed in accordance with References 4.OE and 4.0F.

As shown in the first column of Attachment 3, the inspections/ evaluations for each Category will be tracked via either the matrices created by Reference 4.OF for components having UNIDs or by CAPs / Special Programs or Engineering Reports for components not having specific UNIDs. Quality Assurance will perform oversight on this process as required by References 4.OA, 4.0C and 4.0D.

For equipment which will be inspected/evaluated, pre-service degradation criteria have been developed for equipment/components based on material types, equipment / component locations, conditions experienced since original installation (e.g., dry or wetted ), and equipment / components functional status (i.e. active or passive). Applicable expected pre-service degradation mechanisms are identified for each combination of material type, location, equipment condition and functional status. The PEM is responsible for obtaining TVA Engineering concurrence on the scope of activities for each category of equipment in Attachment 3. Concurrence will be documented in accordance with Reference 4.0F.

Equipment / components in service supporting Unit 1 which are covered by a regulatory program (e.g., Maintenance Rule, Surveillance Instructions, performance monitoring, etc) are evaluated to ensure they will be capable of meeting their Unit 2 required functions. If the equipment is found to not be capable of meeting its licensing / design functions, the component will be replaced/refurbished as described below.

As implemented by the engineering programs, the material types will be established based on direct observation and / or Bill of Materials. The equipment locations will be based on issued plant drawings.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 13 of 51 6.2.3 Inspection / Evaluation (continued)

The determination of wetted versus dry will be based upon a review of the system isolation points (e.g., closed valves, blind flanges, blanking plates, etc) with consideration for the potential for water leakage (i.e., leak by). If evidence of wetting is confirmed, the component will receive further inspection / evaluation.

The inspection activities under the guidelines of the engineering programs will be a combination of actual inspections (e.g., direct visual, borescope, chemical swipes /

analyses, etc) and component specific testing (e.g., bridge, megger, hi-pot, etc).

These inspections and component tests will be used to establish the current capability of the equipment to meet its design criteria requirements for its specified life. The inspections and tests for passive components will be performed on a sample basis.

Inspections / evaluations for quality related seismic Il / I will consider only preservice degradation mechanisms related to seismic Il / I considerations.

The inspection matrix for safety related and quality related commodities by category (Attachment 3) contains the special inspection / test criteria applicable to each pre-service degradation mechanism for the associated equipment / component or commodity type. The specified life can be either the 40 year licensed life of plant or a shorter approved qualified life. For example, safety related electrical equipment subject to 10CFR 50.49 Environmental Qualification is sometimes qualified to a period shorter than 40 years with required periodic replacements.

Items which do not have UNIDs (e.g., piping / tubing, pipe supports, conduit / conduit supports, concrete, coatings, etc) will be evaluated by Engineering within the appropriate Engineering programs (e.g., IE Bulletin 79-02 / 14, HVAC duct Corrective Action Program, Coatings Program, etc). Attachment 3 denotes which program / procedure will perform the applicable inspection/evaluation and track the results.

Mechanical / Civil components that are comprised of metal components are subject to loss of material, cracking, change in material properties (e.g., reduction of fracture toughness, distortion), fouling and physical damage (arc strikes, gouges, etc). Loss of material will evaluate for general corrosion, galvanic action, crevice corrosion, pitting, and MIC. Loss of material due to erosion/corrosion (i.e., FAC) or boric acid wastage is not credible since the plant has not operated. Cracking is not credible since there has not been hydrogen introduced into the systems, there is no operational stress to induce stress corrosion cracking and no fatigue cycles have been experienced on the Unit 2 systems. Change in material properties due to phenomena such as radiation embrittlement, operational thermal aging, etc. is not credible since Unit 2 has not experienced operational conditions. Fouling and material loss due to MIC will be evaluated based on the Unit 1 / 2 boundaries and the potential for wetting from sources such as valve leak through.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 14 of 51 6.2.3 Inspection I Evaluation (continued)

Walkdowns performed in accordance with 79-02 / 79-14, from 2007 to 2009 to determine the construction status of Unit 2 concluded that the existing piping and support configurations were adequate such that no pipe sagging had occurred which could have resulted in damage to equipment nozzles or other piping components.

The piping had been supported to withstand the design basis earthquake (seismic support requirements) which would have been more than enough support to prevent equipment damage.

Electrical components are comprised of conducting materials (e.g., cables, penetrations, hand switches, terminal blocks, relays, etc) or the associated insulating material. These components are subject to degradation due to thermal and radiation effects, contactor oxidation and surface contamination. The Unit 2 electrical equipment is located in areas which experience normal controlled/ambient environmental conditions. The components were not energized and thus did not experience self induced operational heating. The cables are not located in areas of the plant which are subject to minimal radiation from Unit 1. The effects of actual ambient temperature, heating due to energized Unit 1 cables, and Unit 1 related radiation will be accounted for in the qualified life calculations. For cables external to the buildings, the effects of external environments will be included. Chemical swipe samples will be performed to determine if surface contamination is present.

Contactor oxidation as well as the functionality of non-moving components (e.g.,

resistors, capacitors, integrated circuits, etc) are demonstrated via component/system testing. For electrical components, the testing is the primary means of verifying component capability. The visual inspections are performed in support of the testing.

Civil components that are comprised of concrete are subject to preservice degradation due to material loss (i.e., freeze-thaw, abrasion or cavitation, elevated temperature, aggressive chemicals, and corrosion of embedded steel and steel reinforcement), cracking ( freeze-thaw, reaction with aggregates, shrinkage, settlement, elevated temperature, irradiation, and fatigue), change in material properties (i.e., leaching of calcium hydroxide, aggressive chemicals, elevated temperature, irradiation, and creep). Change in material properties due to phenomena such as elevated temperatures, cavitation, fatigue, irradiation or creep is not credible since Unit 2 has not experienced operational conditions.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 15 of 51 6.2.3 Inspection / Evaluation (continued)

The results of the inspections / test will be evaluated to determine if the applicable, expected pre-service degradation mechanism has impacted the associated equipment / component to verify the equipment will be capable of meeting its specified life. If the equipment is found to not be capable of meeting its required design/licensing/vendor requirement, a Problem Evaluation Report (PER) shall be initiated in accordance with References 4.OM. If an unexpected degradation mechanism is identified, a PER shall be generated in accordance with References 4.OM. The results of the evaluations will be documented in accordance with Reference 4.0F. Equipment whose evaluation determines that it will not be capable of meeting its design criteria for its specified life will receive appropriate refurbishment or replacement as described below.

Cleanliness of piping systems will be established during flushes in accordance with flushing procedures. (See Reference 4.OG) 6.2.4 Refurbishment / Replacement The following discusses 1) the equipment/components which have been pre-determined to be refurbished or replaced and 2) the equipment which will be inspected and then determined to require refurbishment.

For equipment/components which have been predetermined to be refurbished, cleaning, lubrication and replacement of consumable parts such as gaskets or seals will be performed as required per vendor technical requirements to ensure the equipment is capable of meeting its technical requirements.

The inspections performed to support refurbishment / replacement for quality related seismic Il / I commodities shall consider preservice degradation mechanisms related to the seismic II / I characteristics of the commodity.

A Refurbishment Scope Evaluation Form (from Reference 4.OF) will be prepared for each component. The documents will list the components and denote which will be refurbished and those that will be replaced. The refurbishment scope form will record applicable information on the component such as the specific refurbishment activities to be performed, special considerations, work documents and / or procedures to be utilized, and the basis for the determination.

Concurrence of the Refurbishment Scope Evaluation Form will be obtained from Project Engineering. Additional approvals from program owners (electrical equipment qualification (EQ), mechanical equipment qualification (MEQ), Generic Letter (GL) 89-10, ANI, etc.) may be specified by project engineering. Complete component replacement (like for like or design issued) will not require engineering or program owner approval when specified in lieu of refurbishment.

If during refurbishment an unexpected degradation mechanism is identified, a PER shall be generated.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 16 of 51 6.2.4 Refurbishment / Replacement (continued)

For equipment expected to be accepted based on inspections/evaluation, if the equipment has experienced no detrimental pre-service degradation, it will be documented as acceptable and no further action is required. If unacceptable degradation has occurred, the equipment will be refurbished or replaced to ensure it will be capable of meeting its design criteria. Replacement items will be procured using current design criteria.

6.2.5 Component / System Testing Prior to Unit 2 operation, industry standard or special component tests will be performed consisting of actions such as motor bumps for rotation, instrument calibrations, flushing, and functional testing of individual components (i.e., air operated valves, motor operated valves, electrical motors, logic scheme checks, etc). The tests as directed by reference 4.00 are intended to demonstrate compliance with component specific specifications and requirements. System flushes, system hydros, and the system Preoperational Test programs performed in accordance with NRC Regulatory Guide 1.68 serve as the confirmation of the component's capability to meet its design criteria. References 4.ON and 4.OP direct the Regulatory Guide 1.68 test program.

6.3 ASME Section III Special Requirements Refurbishment of ASME Section III components will require reference to the original Code Data Report (ASME Form N-5, NPV-1 or N-i). For ASME Section III components, the scope of work must be reviewed to determine whether the work includes ASME Section .111 activities. ASME activities are generally limited to repair by welding of pressure boundary items and replacement of pressure boundary parts or material. Mechanical disassembly and reassembly to replace gaskets, seals, and bearings are not ASME Section III activities. Although refurbishment of ASME Section III components will require Quality Control (QC) review, only the ASME Section III work requires Authorized Nuclear Inspector (ANI) review. Generally, any component disassembly for inspection and restoration activities must be at the component designed disassembly points (i.e. - bolted or flanged surfaces).

The ASME Section III work shall be documented on an ASME Data Report (e.g., N-1, NPV-1, N-5, etc) by the ASME Certificate Holder. For components with Original Equipment Manufacturer (OEM) Data Reports (N-1, N-2, NPV-1, NPP-1, etc), a supplement to the Data Report shall be prepared.

7.0 RECORDS, No QA records are created by this procedure. Documents described in this process are controlled by their respective governing program document requirements.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 17 of 51 7.0 RECORDS (continued)

QA records that document the identification, classification, inspection / evaluation, refurbishment/replacement and testing will be created by the lower tier implementing procedures or contained in the Engineering Reports for the CAPs / Special Programs or other Engineering Reports.

8.0 ATTACHMENTS A. Attachment 1 - Work Process Flow Chart B. Attachment 2 - Equipment / Component Functional Categories C. Attachment 3 - Inspection Matrix D. Attachment 4 - Function Code List

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 18 of 51 Attachment 1 (Page 1 of 1)

Work Process Flow Chart UNIT 2 EQUIPMENT REFURBISHMENT/EVALUATION PROCESS S Identify U2 and Common Equipment/Commodities

.................. o<mmon Equipment/Commodity"-.

............. YES- *or Unit 2 Equipment In/

quipment maintaine NO

-< acceptable by Unit 1 1 Monitoring and>

• aintenan c YES

-1 xcluded from Scope YES-NO

-YES.

NO T

Identify Inspection Type, Expected Pre-Service Degradation Mechanism (Attachment 3)

Inspect/Test Refurbish/Replace -NO ýNO Component Evaluation Acceptable?

YES Component/System Testing

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 19 of 51 Attachment 2 (Page 1 of 11)

Equipment / Component Functional Categories Civil FUNCTION CATEGORY ACTIVE / SUB SUB SUB ACTION REQUIRED PASSIVE DESCRIPTION DESCRIPTION EQ SR/QR MEQ Structural Steel N/A N/A Inspect N/A Welds N/A N/A Inspect N/A Anchor Bolts N/A N/A Inspect N/A Concrete N/A N/A Inspect N/A CTSP, EQSP, Grout N/A N/A Inspect N/A HGR, PSP, Supports Passive SUPP Unistrut N/A N/A Inspect N/A Base Plate N/A N/A Inspect N/A Manufactured component (i.e.

Springs, pipe N/A N/A Inspect N/A clamps, struts, spring cans)

SNUB, SHKA Snubbers Active N/A N/A Refurbish Refurbish Platforms N/A N/A Inspect N/A Building Steel N/A N/A Inspect N/A SCVL, STRU, Steel Passive Miscellaneous WELD Steel N/A N/A Inspect N/A Welds N/A N/A Inspect N/A Bolting N/A N/A Inspect N/A Floor Slabs N/A N/A Inspect N/A Walls N/A N/A Inspect N/A Concrete CoceeN/A N/A Inspect N/A Concrete Passive Structures Pads N/A N/A Inspect N/A Rebar N/A N/A Inspect N/A Foundations N/A N/A Inspect N/A

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 20 of 51 Attachment 2 (Page 2 of 11)

Civil ACTIVE / SUB SUB SUB ACTION REQUIRED PASSIVE DESCRIPTION DESCRIPTION EQ SR/QR MEQ Ice loe Cond.

Doors N/A N/A Inspect N/A lower Doors Doors (Ice BLKT Ice Cond. Inspect/

BLKT Condenser) Active Intermediate N/A N/A Replace N/A Doors Blanket N/A N/A Replace N/A Doors (manual Doormnul N/A N/A Inspect N/A opening) _______

Doors (Solenoid Operated, N/A N/A Inspect N/A Motor DGP, DOOR, Doors &Operated)

DSL, EQH, Hatches Active Hatches N/A N/A Inspect N/A MNWY Blowout Pls N/A N/A Inspect N/A Panels RR Bay N/A N/A In-service Hatches N/A Roll-up Doors N/A N/A In-service N/A Gates N/A N/A In-service N/A Blowout SlsDoor N/A N/A Inspect N/A Seals EXPJ Seals Expansion N/A N/A Inspect N/A Joints Door Seals N/A N/A Inspect N/A CRN, LDCL, Cranes Active N/A N/A N/A Refurbish N/A LDVX, BRK i N BSKT Basket (Ice) Passive N/A I N/A N/A Inspect N/A

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 21 of 51 Attachment 2 (Page 3 of 11)

Electrical FUNCTION CATEGORY ACTIVE SUB SUB SUB ACTION REQUIRED PASSIVE DESCRIPTION DESCRIPTION EQ SR/QR MEQ BAT Battery Active N/A N/A In-service N/A Molded Case N/A N/A Replace N/A BKR Breaker Active Switch Gear N/A N/A Refurbish N/A Inspect, Underground Evaluate In-service N/A Cable (Medium QL Voltage) Inspect, Above Ground Evaluate Inspect N/A QL CABL Cable Cable (Low Inspect, Passive Voltage Control N/A Evaluate Inspect N/A and Power) QL Cable (Shielded Inspect, Passive Instrument)

Instrument)

N/A Evaluate QL Inspect N/A Passive Cable (Multi N/A Replace Inspect N/A

_________Axial)

CHGR CHARGER, Active N/A N/A In-service N/A BATTERY DIO Blocking Diode Active Diode N/A N/A Inspect N/A (Relaying)

MCC Bucket N/A Replace N/A CNTR, STR Contactor Active Refurbish Misc. N/A / Refurs Replace N/A N/

SW Disconnect Passive N/A N/A Inspect / N/A Replace FU Fuse Passive N/A N/A Replace N/A

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Electrical ACTIVE I SUB SUB SUB ACTION REQUIRED PASSIVE DESCRIPTION DESCRIPTION EQ I SRJQRI MEQ HS, XS, Inspect / Inspect!

HS, Hand Switch Active N/A Replace / N/A XSW Verify QL Replace HTR Heater Active N/A N/A Inspect N/A HTR H2 Igniter N/A N/A New N/A Medium Refurbish/ Refurbish N/A Voltage Adjust QL Refurbish/ Refurbish MTR Motor Active Low 480V Other Verify QL /Replace N/A Replace Refurbish/ Refurbish Low 120V N/A Verify QL / Replace N/A Replace PENT Penetration Passive N/A Inspect / Verify QL / N/A (Electrical) Replace

CRF Wafts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 23 of 51 Attachment 2 (Page 5 of 11)

Electrical FUNCTION CATEGORY ACTIVE / SUB SUB SUB ACTION REQUIRED PASSIVE DESCRIPTION DESCRIPTION EQ SR/QR MEQ Pneumatic N/A Replace N/A Electronic N/A Replace N/A Time Delay Electro Refurbish N/A RLY, ARB, Mechanical / Replace TDDO, Electra Refurbish TDPU, 9 N/A /Rpae N/A VaiUs Relay Active Protective Mechanical / Replace Numerio Relays Numeric Refurbish Electronic N/A N/A Designators Electro / Replace Auxiliary Mechanical N/A Inspect N/A Electronic N/A / Refuris Replace N/A CSC Seal Passive N/A Replace Inspect N/A SOL Solenoid Active N/A N/A Inspect N/A SLV, IFSV, LSV, FSV, Solenoid Valve Active N/A Replace N/A pSV Subject To N/A Replace Replace N/A Submergence SPLC Splice Passive Not Subject to N/A Replace Inspect N/A Submergence BUS, BD Switch PrimaryGear Bus Passive N/A N/A In-service N/A Switchgear, Inspect /

Distribution Active N/A N/A Refurbish N/A (compartment)

Inspect /

TBLK, TB Terminal Block Active N/A ReplacerifyIpect N/A Verify QL

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Electrical FUNCTION CATEGORY ACTIVE / SUB SUB SUB ACTION REQUIRED PASSIVE DESCRIPTION DESCRIPTION EQ SR/QR MEQ MCC Control N/A Replace N/A Control Inspect / Inspect / N/A (Potential) Replace Replace Control Inspect / Inspect / N/A Dry (Current) Replace Replace XFMR, XFA, CTR, Transformer Active Large Power N/A Inspect N/A DFX Oil Filled Large Power N/A Inspect N/A In-service INV, UPX UPS (Inverter) Active N/A N/A /(New for N/A U2 Vital)

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 25 of 51 Attachment 2 (Page 7 of 11)

Instruments and Control ACTIVE / SUB SUBSUB ACTION REQUIRED PASSIVE DESCRIPTION DESCRIPTION EQ SR/QR MEQ ADC, AMP, Eagle 21, SSPS, PAM CM, CMPT, (Common Q), Spec 200 (AFW, CNT, CPU, EGTS, Misc), SRMs/IRMs, DAC, DDC, Process Instr (Foxboro I/A), New/ New/

Loose Parts, Radiation N/A DFP, DLH, Monitors, Incore Probes Replace Replace EAI, EAO, ECO, EM, EPI, (WINCISE), RPI (CERPI),

ERI, FM, FQ, Annunciators, Process EH2A, H2AN, Computer, Hydrogen Analyzer H2E, H2M, HDAC, IDWR, Circuit Card Power Range Nuclear IIQIMOD, Electronic Active Instrumentation, Valve Monitor, INM, INS, ITM, Module AFW Turbine Speed Controller, LCP, RA, RE, AEH RI, CMPT, H2AN, H2E, IJY, IMOD, N/A Refurbish N/A INY, ISY, ITY, IUY, IXQ, LM, LNSW, MON, MUX, NM, PM, RM, SM, TM, UY, VE, VM, XM, PDM Condensing Passive N/A N/A Inspect N/A Pot CIC, CNTL, Electronic N/A Replace N/A EC, E/TI, FC, ERC, FIC, F/LC, H2C, HC, HIC, HYC, IC, IEC, IFC, INC, ISC, Controller Active ace ISOL, ITC, Pneumatic N/A Repl N/A LC,LIC, PC, Refurbish PDC, PDIC, PHC, PIC, PMC, SC, SEC, SIC, TC, TIC, XIC, XC FOC, FOP Fiber Optic Active N/A N/A *New N/A Component DIEG Diesel DIEG Gene Generator Active N/A N/A In-service N/A

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 26 of 51 Attachment 2 (Page 8 of 11)

Instruments and Control ACTIVE / SUB SUB SUB ACTION REQUIRED PASSIVE DESCRIPTION DESCRIPTION EQ SRIQR MEQ Cl, El, E/TI, Fl, Electro Inspect/

FMT, H21, IEI, Eectno N/A N/A Iect N/A Mechanical Replace IFI, II, INI, IPDI, IPI, ISI, ITI, Indicator Active Electronic N/A N/A Replace N/A IXDI, XI, LI, LIS, NI, PDI, Inspect/ N/A PI, RI, SI, TI, Replace VI, WHM, XI, ZI IPX, IXX, PX, Power Active N/A N/A Refurbish N/A XX Supply / Replace RI, RIS, RIT, Radiation Active N/A Replace Replace N/A RM, RMI, RMS Monitor CR, FR, H2ZR, HYR, HZR, INR, ITR, IUDR, IXR, IZR, LR, MR, NAR, NR, Recorder Active N/A N/A Replace N/A 02R, P/TR, PDIR, PDR, PHR, REC, RR, SIR,TR, VTR, XR, UDR, VR Refurbish Misc N/A N/A N/A VPMP Sample Active /Replace Pump Radiation Monitor N/A N/A Monitor Replace N/A Sensors Refurbish DET (Bellows, Active N/A N/A /Replace N/A Diaphrams)

FDS, FIS, FS, Electro N/A Replace Refurbish N/A H21S, H2S, Mechanical Replace IFS, IFIS, IJB, IJS ILS, INS, IPDS, IPIS, Instrument IPS, IS, ISB, Switch Passive Replace IT, ITIS, ITS, Electronic N/A Replace Refurbish N/A LIS, LS, ILlS, ILS, PS, PIS, TS, TIS, PDS, PDIS, SS IZS, LSW, ZS Limit Switch Active N/A Replace Refurbish N/A

/Replace

Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Refurbishment Program Rev. 0002 Page 27 of 51 Attachment 2 (Page 9 of 11)

Instruments and Control ACTIVE / SUB SUB SUB ACTION REQUIRED PASSIVE DESCRIPTION DESCRIPTION EQ SR/QR MEQ CT, FIT, FT, H21T, H2T, IFIT, IT, LT Transmitter Active N/A Replace Replace N/A PDIT, PDT, PIT, PT, TD, TT, VT, XIT, XMTR, XT AIRL Instrument Passive N/A N/A Inspect N/A Air Tubing RADL, SEENL, Instrument Passive N/A N/A Inspect N/A TBG, TU BE Sensincq Line ITE, T Temp. Active RTD N/A New Inspect N/A SElement TC N/A IN/A Inspect N/A

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 lPage 28 of 51 Attachment 2 (Page 10 of 11)

Mechanical ACTIVE / SUB SUB SUB ACTION REQUIRED FUNCTION CATEGORY DESCRIP DESCRIPTIO PASSIVE TION N EQ SR/QR MEQ AHU, BLOW, EXH, FAN, Fan Active N/A N/A N/A Refurbish Refurbish VEXT Dry N/A N/A Inspect N/A CLR, COIL, Cooling Coil. Passive Wet N/A N/A Inspect N/A CHR, ACU COAT Chiller Coating Active N/A N/A N/A Refurbish N/A COAT, CTNG Protective Passive N/A N/A N/A Inspection N/A COMP, DRYG Compressor Active N/A N/A N/A In-service N/A Control Rod Inspect CRDM, ROD Drive Active N/A N/A N/A Inst N/A Mechanism Test BKD, BLD, Damper Active N/A N/A N/A Refurbish Refurbish DMP, ISD DUCT Duct Passive N/A N/A N/A Inspect N/A ACUM, ADH, DEMN, DISC, Dry N/A N/A Inspect N/A DRN, DRP, FLG, Pipe Passive HOS, ITW, PIPE, PPD, Wetted N/A N/A Inspect N/A SPPC, TRAP, TW OR Orifice Passive N/A N/A N/A Inspect N/A FLT, FLTR Filter Passive N/A N/A N/A Replace N/A GR Gear Box Active N/A N/A N/A Refurbish Refurbish Dry N/A N/A Inspect N/A COND, HEX, Heat SGEN SGNEcagrWetted Exchanger WPassive N/A N/A Inspect N/A

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002

. Page 29 of 51 Attachment 2 (Page 11 of 11)

Mechanical ACTIVE / SUB SUB SUB ACTION REQUIRED FUNCTION CATEGORY ACIV E~SUBR UBSU PASSIVE DESCRIP DESCRIPTION EQ SRJQR MEQ TION MVOP, PCO, Motor N/A Replace Replace N/A PDCO, FCO, Valve Operator Active Air N/A N/A Refurbish Refurbish POS Hydraulic N/A N/A Refurbish Refurbish Pressure Refurbish / Refurbish /

PREG, BST Regulator Active N/A N/A N/A Replace Replace CTP, SEAL Seal Passive N/A N/A Inspect Inspect / N/A SReplace TANK,TNK Tank Passive Stainless N/A N/A Inspect N/A Coated N/A N/A Inspect N/A BYIV, BYV, CKV, DRIV, DRV, EQIV, EQV, EXPV, Unisolatable, Radioactive FCV, FLV, Fluid, High Pressure, High N/A Refurbish Refurbish HCV, HV, IBD, Temperature (High risk)

IBV, IDV, IFCV, INJ, ISIV, ISV, LCV, LOV, Valve Active PCV, PDCV, PFV, RCKV, RCV, RFV, RTV, SFV, Others SMV, SPV, Valves N/A N/A Inspect/ Inspect/

TCV, THV, (Low risk) Refurbish Refurbish TTIV, TTV, (o ik TV, VBRV, VLV, VTIV, VTV, XDV PMP, VPMP Pump Active N/A N/A N/A Refurbish Refurbish TURB Turbine Active N/A N/A N/A Refurbish Refurbish

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 30 of 51 Attachment 3 (Page I of 12)

Inspection Matrix Civil CATEGORY TRCIG / ACTIVE / SUB SUB SUB ACTION REQUIRED

_______PRESERVICE PRESERVICE DEGRADATION TRACKING PASSIVE DESCRIPTION DESCRIPTION INSPECTION MECHANISM PROCESS EQ SR/QR MEQ MECHANISM

1) Visual 1) Physical Structural Steel N/A N/A Inspect N/A Inspection Damage, Arc Strikes, Corrosion (pitting, rust)

1) Visual 1) Physical Welds N/A N/A Inspect N/A Inspection Damage, Arc Strikes, Corrosion (pitting, rust)

1) Visual 1) Physical Anchor Bolts N/A N/A Inspect N/A Inspection damage or corrosion

1) Visual 1) Physical Concrete N/A N/A Inspect N/A Inspection damage (spalling or cracking)

Supports Passive 1) Visual 1) Physical (CAP) Grout N/A N/A Inspect N/A Inspection damage (spalling or missing)

1) Visual 1) Physical Unistrut N/A N/A Inspect N/A Inspection Damage, Arc Strikes, Corrosion (pitting, rust)

1) Visual 1) Physical Base Plate N/A NA Inspect N/A Inspection Damage, Arc Strikes, Corrosion (pitting, rust)

Manufactured 1) Visual 1) Physical component (i.e. Inspection Damage, Arc Springs, pipe N/A N/A Inspect N/A Strikes, Corrosion clamps, struts, (pitting, rust) spring cans)

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 31 of 51 Attachment 3 (Page 2 of 12)

Civil CATEGORY TRACKING A ACTIVE / SUB SUB SUB ACTION REQUIRED PRESERVICE PRESERVICE DEGRADATION PROCESS PASSIVE DESCRIPTION DESCRIPTION INSPECTION MECHANISM PROCESSEQ SRIQR MEQMEHNS

1) Visual 1) Physical Platforms N/A N/A Inspect N/A Inspection Damage, Arc Strikes, Corrosion (pitting, rust)

1) Visual 1) Physical Building Steel N/A N/A Inspect N/A Inspection Damage, Arc Strikes, Corrosion (pitting, rust)

Structural 1) Visual 1) Physical Steel Passive Miscellaneous N/A N/A Inspect N/A Inspection Damage, Arc (Eng Report) Steel Strikes, Corrosion (pitting, rust)

1) Visual 1) Physical Welds N/A N/A Inspect N/A Inspection Damage, Arc Strikes, Corrosion (pitting, rust)

1) Visual 1) Physical Bolting N/A N/A Inspect N/A Inspection damage, corrosion

1) Visual 1) Physical Inspection Damage or water Floor Slabs N/A N/A Inspect N/A damage due to freeze thaw cycle, spalling

1) Visual 1) Physical Inspection Damage or water Walls N/A N/A Inspect N/A damage due to freeze thaw cycle, spalling

1) Visual 1) Physical Concrete Inspection Damage or water Structures N/A N/A Inspect N/A damage due to Concrete Passive freeze thaw cycle, (CAP) spalling

1) Visual 1) Physical Inspection Damage or water Pads N/A N/A Inspect N/A damage due to freeze thaw cycle, spalling

1) Visual 1) Physical Rebar N/A N/A Inspect N/A Inspection Damage, Corrosion, Concrete Spalling

1) Visual 1) Physical damage Foundations N/A N/A Inspect N/A Inspection or water damage due to freeze thaw cycle,

__ spalling

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 32 of 51 Attachment 3 (Page 3 of 12)

Civil CATEGORY TRACKING / ACTIVE I SUB SUB SUB ACTION REQUIRED

______PRESERVICE PRESERVICE DEGRADATION PROCESS PASSIVE DESCRIPTION DESCRIPTION INSPECTION MECHANISM PROCESS ~EQ SRIQR MEQMEHNS

1) Visual 1) Physical Inspection damage, Ice Cond. lower N/A Corroded Doors N/A N/A Inspect N/A 2) Seal 2) Physical Inspection damage, Organic Doors (Ice material aging.

Condenser) Active 1) Visual 1) Physical (Ref 4.OF) Inspection damage, Ice Cond. Corroded Intermediate N/A N/A Inspect N/A 2) Seal 2) Physical Doors Inspection damage, Organic material aging.

Doors (manual 1) Visual 1) Damaged, opening) N/A N/A Inspect N/A Inspection Corroded.

Doors (Solenoid 1) Visual 1) Damaged, Doors & Operated, Motor N/A N/A Inspect N/A Inspection & corroded.

Hatches Active Operated) Testing (Ref 4.OF) Hatches N/A N/A Inspect N/A 1) Visual 1) Damaged

(_e_4.0)_Hatche N/AN/A nspect N/A Inspection Corroded Blowout Panels N/A N/A Inspect N/A 1) Visual 1) Damaged Inspection Corroded

1) Visual 1) Physical Blowout Door N/A N/A Inspect N/A Inspection Damage Seals 2) Hardness 2) Organic inspection material aging

1) Visual 1) Physical Divider Bearer N/A N/A Inspect N/A Inspection Damage Seals 2) Hardness 2) Organic Seals Passive inspection material aging (Eng Report) 1) Visual 1) Physical Expansion N/A N/A Inspect N/A Inspection Damage Joints 2) Hardness 2) Organic inspection material aging

1) Visual 1) Physical Door Seals N/A N/A Inspect N/A Inspection Damage

2) Hardness 2) Organic inspection material aging Basket (Ice) A 1) Inspect for 1) Physical (Ref 4.OF) Passive N/A N/A N/A Inspect N/A physical damage (ReI4F I I damage

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Electrical CATEGORY / ACTIVE / SUB SUB SUB ACTION REQUIRED PRESERVICE PRESERVICE TRACKING PROCESS PASSIVE DESCRIPTION DESCRIPTION ___ RSRIEDEGRADATION INSPECTION MECHANISM PROCESS EQ SR/QR MEQ MECHANISM

1) Adjust 1) Organic Inspect, qualified life material aging Passive Cable (Medium Above Ground Evaluate Inspect N/A (For EQ)

Voltage) QL 2) Inspect for 2) Physical physical damage.

damage.

1 ) Adjust 1) Organic Inspect, qualified life material aging Cable (Low Voltage Control N/A Evaluate Inspect N/A (For EQ)

Passive and Power) QL 2) Inspect for 2) Physical physical damage.

Cable idamage.

(CAP) 1) Adjust 1) Organic qualified life material aging Inspect, N/A Evaluate Inspect N/A (For EQ)

Passive Cable (Shielded Instrument) QL 2) Inspect for 2) Physical physical damage.

damage.

1 ) Adjust 1) Organic qualified life material aging Cable (o Q N/A Replace Inspect N/A (For EQ)

Passive (Multi Axial)

(Muli Axal)2) Inspect for 2) Physical physical damage.

damage.

Blocking 1 ) Inspect for 1) Physical Diode physical damage (Relaying) Active Diode N/A N/A Inspect N/A damage (Ref 4.0F)

Disconnect 1 ) Inspect for 1) Physical (Ref 4.cF) Passive N/A N/A Inspect N/A physical damage damage.

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Electrical CATEGORY ACTION REQUIRED PRESERVICE CATEG ACTIVE SUB SUB SUB PRESERVICE DEGRADATI TRACESN PASSIVE DESCRIPTION DESCRIPTION INSPECTION ON PROCESS EQ SR/QR MEQ MECHANISM

1) Inspect for 1) Physical physical damage, damage block looseness.

2) Actuate switch 2) Contact to remove contact Corrosion Hand (Ref Switch 4.0F) Activep AcieNAReplace! / Inspect Inpet / N/A corrosion.

Verify QL Replace 3) Verify qualified 3) Organic life for EQ material aging.

Switches.

4) Functionally 4) Physical test internal damage

1) Inspect for 1) Physical physical damage, damage.

Heater boe nuaos (Ref 4.0F) Active N/A N/A Inspect N/A elemen insulators, insulation/

corrosion.

1) Physical 1) Physical damage. Damage

2) Inspect for 2) Corrosion external corrosion.

3) Perform internal 3) Moisture inspection for Corrosion.

corrosion.

Penetration 4) Evaluate 4) Organic (Electrical) Passive N/A Inspection / Verify N/A qualified life. material aging.

(Ref 4.lF) QL / Replace 5) Perform 5) Physical dielectric test. damage.

Moisture.

Corrosion.

6) OEM Recommendations

7) Leak Test 7) Physical damage.

Organic material aging.

1) Physical 1) Physical (Refy Active Auxiliary Mech l N/A Inspect N/A damage damage (Refa Mechanical ElOF N n/ 2) Test Contact 2) Physical I_ I corrosion damage

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 35 of 51 Attachment 3 (Page 6 of 12)

Electrical CATEGORY / ACTION REQUIRED PRESERVICE TRACKING ACTIVE/ SUB SUB SUB PRESERVICE DEGRADATION PROCESS PASSIVE PROCESS DESCRIPTION DESCRIPTION EQ SRIQR MEQMEHNSINSPECTION MECHANISM

1) Inspect for 1) Physical physical damage. damage Solenoid Active N/A N/A Inspect N/A (Ref 4.OF) 2) Perform OEM 2) Lubrication of recommendations. mechanism, linkages.

Inspect for Physical (Ref4.F, Eng Passive Not Subject to N/A Replace Inspect 'N/A physical damage. damage.

Report) Submergence

1) Inspect bus 1) Physical stabs for physical damage.

damage.

2} Perform micro 2) Connection Switchgear, ohm test from bus creep. Fastener Distribution Inspect / to stabs. cracking.

(compartments) Active N/A N/A Refurbish N/A 3) Compartment N/A (Ref 4.OF) switches, linkages, contacts, etc. are refurbished per manufacturers instructions /

procedures.

1) Inspect for 1) Physical Terminal Block Inspect / physical damage. damage.

(Ref4.0F) Active N/A Replace / Inspect N/A Corrosion.

Verify QL 2) Verify qualified 2) Aging of I life., organic material.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 36 of 51 Attachment 3 (Page 7 of 12)

Electrical CATEGORY/ ACTIVE SUB SUBSUB ACTION REQUIRED PRESERVICE PRESERVICE TRACKING DEGRADATION PASSIVE DESCRIPTION DESCRIPTION INSPECTION PROCESS EQ SRIQR MEQ MECHANISM Inspect / Inspect / 1) Inspect for 1) Physical Control (Potential) Replace Replace N/A physical damage. damage.

Control o (Current) Inspect/ Inspect!

C ( Replace Replace N/A Dry _ _ _ _ _ _

1) Inspect for 1) Physical physical damage. damage.

Transformer Large Power Inspect / 2) Perform 2) Winding (Ref 4.OF) Active N/A Test N/A dielectric, bridge, integrity.

etc. testing.

1) Inspect for 1) Physical physical damage. damage.

2) Perform 2) Aging of Oil Filled Large Power N/A Inspect / dielectric, bridge, organic material.

Test etc. testing. Moisture.

3) Oil testing 3) Aging of before and after organic material.

I_ __energization soak. Moisture.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 37 of 51 Attachment 3 (Page 8 of 12)

Instruments and Control CATEGORY ACTION REQUIRED PRESERVICE ACTIVE / SUB SUB SUB PRESERVICE DEGRADATION TRACKING PASSIVE DESCRIPTION DESCRIPTION EQ SR/QR MEQ INSPECTION MECHANISM.

PROCESS 1 ) Inspect for 1) Physical damage physical damage and presents of Condensing foreign material on Pot Passive N/A N/A Inspect N/A external.

(CAP) 2) Perform random 2) Chemical swipes to verify no contamination.

chemical contamination.

1 ) Inspect for 1) Physical damage.

physical damage, bent needles, damaged case, other.

Electro N/A N/A Inspect/ N/A 2) Perform 2) Damaged Mechanical Replace calibration linkages, open coils, including damaged bearings, hysteresis check. corrosion on mechanical parts.

3) OEM 3) If applicable -

recommendations. lubrication, etc.

Indicator (Refcator Active 1) Inspect for 1) Physical damage.

(Ref 4.0F) physical damage, bent needles, damaged case, loss of fill fluid, loss of dampening fluid.

Mechanical N/A N/A Inspect/ N/A 2) Perform 2) Damaged Replace calibration linkages, damaged including bearings, corrosion hysteresis check. on mechanical (If indication is a parts.

QA function)

3) OEM 3) If applicable -

recommendations. lubrication, etc.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-Ti216 Unit 2 Refurbishment Program Rev. 0002 Page 38 of 51 Attachment 3 (Page 9 of 12)

Instruments and Control CATEGORY ACTION REQUIRED PRESERVICE

/ ACTIVE / SUB SUB SUB PRESERVICE DEGRADATION TRACKING PASSIVE DESCRIPTION DESCRIPTION EQ SR/QR MEQ INSPECTION MECHANISM.

PROCESS

1) Inspect for 1) Physical damage physical damage and presents of foreign material on Instrument external.

Air Tubing Passive N/A N/A Inspect N/A 2) Perform swipes 2.) Chemical (Eng Report) to verify no contamination.

chemical.

contamination.

1) Inspect for 1) Physical damage physical damage Instrument and presents of Sensing PsieNANA Icnr foreign material on Line Passive N/A N/A Inspect N/A external.

(CAP)

2) Perform swipes 2) Chemical to verify no contamination.

chemical contamination.

1) Inspect element. 1) Physical damage, RTD N/A New Inspect N/A For physical corrosion and Temp. damage and fit up. proper installation.

Element Active 1) Inspect element. 1) Physical damage, TC N/A N/A Inspect N/A For physical corrosion and damage and fit up. proper installation.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 39 of 51 Attachment 3 (Page 10 of 12)

Mechanical CATEGORY / ACTIVE / SUB SUB SUB ACTION REQUIRED PRESERVICE PRESERVICE TRACKING PASSIVE DESCRIPTION DESCRIPTIO NINSPECTION PROCESS N EQ SRIQR MEQ MECHANISM.

1) Inspect for 1) Physical damage.

external physical Corrosion.

Dry N/A N/A Inspect N/A damage.

2) Perform swipes 2) Chemical if stainless, contamination.

Cooling Coil Passive 1) Inspect for 1) Physical damage.

(Ref 4.OF) external physical Corrosion.

damage.

Wet N/A N/A Inspect N/A 2) Inspect for 1) Physical damage.

internal damage. Corrosion.

2) Perform swipes 2) Chemical if stainless, contamination.

Coating 1) Visual 1) Physical damage.

(Protective) Passive N/A N/A N/A Inspection N/A inspection and Chipping, peeling, (Eng Report) pull testing. or blistering.

Chemical attack.

1) Inspect for 1) Physical damage.

physical damage.

2) Testing of 2) Physical damage.

Control Rod jacking Internal Drive Inspect / mechanism and contamination and Mechanism Active N/A N/A N/A Test N/A RPI sencing, corrosion.

(Ref 4.OF) including current signature.

3) Chemical 3) Chemical attack.

swipes of accessible areas.

1) Perform 1) Physical damage.

Duct inspection. Corrosion.

(CAP) Passive N/A N/A N/A Inspect N/A 2) Chemical 2) Chemical swipes if contamination.

stainless.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 40 of 51 Attachment 3 (Page 11 of 12)

Mechanical CATEGORY/I ACTIVE SUB SUB ACTION REQUIRED PRESERVICE TRACKING A IVE SUB - PRESERVICE DEGRADATION PROCESS PASSIVE DESCRIPTION N EQ SRJQR MEQ INSPECTION MECHANISM.

1) Perform 1) Physical damage.

inspection. Corrosion.

2) Chemical 2) Chemical swipes if contamination.

stainless.

Dry N/A N/A Inspect N/A 3) For piping 3) Corrosion.

external to the building, remove insulation and inspect for external corrosion.

1) Open piping to 1) Physical damage.

Pipe Passive inspect to Corrosion.

(Eng Report) determine extent of wetting and for cleaning.

2) Perform UT of 2) Physical damage.

the piping to Corrosion.

Wetted N/A N/A Inspect N/A determine wall thickness degradation

3) Perform 3) Chemical chemical swipes contamination.

of internal and external portions of pipe if stainless steel.

1) Inspect for size N/A Dry N/A N/A Inspect N/A / serial number and orientation.

Orifice Passive 1) Inspect 1) Physical damage.

(Ref 4.OF) physical damage Corrosion. MIC.

Wetted N/A N/A Inspect N/A 2) Inspect for size N/A

/ serial number and orientation.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 41 of 51 Attachment 3 (Page 12 of 12)

Mechanical CATEGORY/ E SUB SUB ACTIONREQUIRED PRESERVICE C G ACTIVE SUB - PRESERVICE DEGRADATION TRACKING PASSIVE DESCRIPTION DESCRIPTIO EQ SRIQR MEQ INSPECTION MECHANISM.

PROCESS N EQ SR__MQMEHNIM 1 ) Inspect for 11)Physical damage.

external physical Corrosion.

Dry N/A N/A Inspect N/A damage.

2) Perform swipes 2) Chemical if stainless, contamination.

Heat 1) Inspect for 1) Physical damage.

Exchanger Passive external physical Corrosion.

(Ref 4.OF) damage.

Wetted N/A N/A Inspect N/A 2) Inspect for 2) Physical damage.

internal damage. Corrosion.

3) Perform swipes 3) Chemical if stainless, contamination.

Seal Psie NANA IsctInspect / N/A 1) Inspect for 1)Physical damage.

(Eng Report) Passive N/A N/A Inspect Replace physical damage.

1 ) Inspect for 1) Physical damage.

physical damage, Chemical attack.

N/A N/A Inspect N/A corrosion and Stainless chemical attack.

Tank Passive 2) Perform 2) Chemical attack.

(Ref 4.OF) chemical swipes.

1 ) Inspect for 1) Physical damage.

N/A N/A Inspect N/A physical damage Corrosion. Failed Coated and corrosion, coating.

Pull tests.

1) Physical 1) Physical damage, damage corrosion

2) Check for 2) Physical damage.

Valves binding Hardened organic Active Low Risk N/A N/A Inspect Inspect components.

(Ref 4.OF)

3) Leak check 3) Hardened packing and other organic components.

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 42 of 51 Attachment 4 (Page 1 of 10)

Function Code List Function Code Function Text Keyword Qualifier ACU AIR CONDITIONER UNIT AIR CONDITIONER UNIT ACUM ACCUMULATOR ACCUMULATOR NONE ADC CARD, ANALOG TO DIGITAL CONVERTER COMPUTATION ANAL TO DIGITAL ADH HEADER, AIR DISTRIBUTION HEADER AIR DISTRIBUTION AHU [AIR HANDLING UNIT AIR HANDLING UNI BLOWER AIRL LINE, INSTRUMENT, CONTROL AIR INSTRUMENT LINE CONTROL AIR AMP AMPLIFIER COMPUTATION AMPLIFIER ANN ANNUNCIATOR ANNUC/ALARM NONE ARB BOARD, RELAY, AUXILIARY ELECT. BOARD RELAY, AUX BAT BATTERY BATTERY NONE BD SWITCHBOARD SWITCHBOARD NONE BKD DAMPER, BACKDRAFT DAMPER BACKDRAFT BKR 3REAKER, CIRCUIT CIRCUIT BREAKER NONE BLD :DAMPER, BALANCING DAMPER BALANCING BLKT BLANKET BLANKET NONE BLOW 3LOWER BLOWER NONE BRK 3RAKE BRAKE NONE BSKT BASKET BASKET NONE BST BOOSTER BOOSTER NONE BUS BUS, ELECTRICAL BUS NONE BYIV [VALVE, BYPASS, INSTRUMENT VALVE INSTRU, BYPASS BYV VALVE, BYPASS/RECIRCULATING VALVE BYPASS/RECIRC CAB CABINET, DISTRIBUTION, POWER CABINET DISTRIBUTION CABL CABLE CABLE NONE CCU COOLING UNIT, COMPARTMENT COOLING UNIT COMPARTMENTT CHGR CHARGER, BATTERY BATTERY CHARGER NONE CHR CHILLER CHILLER NONE CI INDICATOR, CONDUCTIVITY INDICATOR CONDUCTIVITY CIC CONTROLLER, INDICATIING, CONDUCTIVITY CONTROLLER CONDUCTIV'Y IND CKV VALVE, CHECK VALVE CHECK CLK CLOCK COMPUTATION CLOCK CLR COOLER COOLER NONE CM MODIFIER, CONDUCTIVITY COMPUTATION CONDUCTIVITY CMPT COMPUTER EQUIPMENT COMPUTER EQUIPMENT CNT COUNTER COMPUTATION COUNTER CNTL CONTROLLER CONTROLLER NONE CNTR CONTACTOR, CIRCUIT BREAKER CONTACTOR CIRCUIT BREAKER COAT COATING, PROTECTIVE COATING PROTECTIVE COIL COIL COIL NONE

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 43 of 51 Attachment 4 (Page 2 of 10)

Function Code Function Text Keyword Qualifier COMP COMPRESSOR COMPRESSOR NONE CON CONDUIT CONDUIT NONE COND CONDENSER CONDENSER NONE CPU COMPUTER COMPUTER CPU CR RECORDER, CONDUCTIVITY RECORDER CONDUCTIVITY CRDM DRIVE MECHANISM, CONTROL ROD DRIVE MECHANISM CONTROL ROD CRN CRANE CRANE NONE CSC CONNECTOR, CONDUIT SEAL CONNECTOR CONDUIT SEAL CT TRANSMITTER, CONDUCTIVITY TRANSMITTER CONDUCTIVITY CTNG COATING, PROTECTIVE COATING PROTECTIVE CTP PENETRATION, CABLE TRAY PENETRATION CABLE TRAY CTR TRANSFORMER, CURRENT TRANSFORMER CURRENT CTSP SUPPORT, CABLE TRAY SUPPORT CABLE TRAY DAC DIGITAL TO ANALOG CONVERTER CONVERTER DIG TO ANAL CONV DDC DIGITAL TO DIGITAL CONVERTER CONVERTER DIGITAL TO DIGIT DEMN DEMINERALIZER DEMINERALIZER NONE DFP DIGITAL FILTER PROCESSOR COMPUTATION DIGITAL FILTER DFX TRANSFORMER, MULTI-TAP TRANSFORMER MULTI-TAP DGP PANEL, DOOR AND GATE PANEL DOOR AND GATE DIEG ENGINE, DIESEL ENGINE DIESEL DIO DIODE, ELECTRICAL DIODE NONE DISC DISC, RUPTURE RUPTURE DISC NONE DLH DATA LINK HANDLER COMPUTATION DATA LINK HANDLE DMP DAMPER DAMPER NONE DOOR DOOR DOOR NONE DPL PANEL, DISTRIBUTION PANEL DISTRIBUTION DRIV ALVE, DRAIN, INSTRUMENT ALVE DRAIN, INSTRUMENT DRN DRAIN, FLOOR DRAIN FLOOR DRV VALVE, DRAIN VALVE DRAIN DRYG DRYER,GAS DRYER GAS DSL DOOR, SOLENOID OPERATED DOOR SOLENOID OPER'D DUCT DUCT DUCT NONE DXF TRANSFORMER, DRY-TYPE TRANSFORMER DRY TYPE E/TI INDICATOR, ELECTRICAL AND TEMPERATURE INDICATOR ELECT/TEMP EAI EAGLE ANALOG INPUT ANALOG INPUT EAGLE EAO EAGLE ANALOG OUTPUT ANALOG OUTPUT EAGLE EC CONTROLLER, ELECTRICAL CONTROLLER ELECTRICAL ECO EAGLE CONTACT OUTPUT CONTACT OUTPUT EAGLE

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 44 of 51 Attachment 4 (Page 3 of 10)

Function Code Function Text Keyword Qualifier ECON CONNECTOR, ELECTRICAL CONNECTOR ELECTRICAL El INDICATOR, ELECTRICAL INDICATOR ELECTRICAL EIS SWITCH, INDICATING, ELECTRICAL SWITCH INDICATING EM MODIFIER, ELECTRICAL COMPUTATION MODIFIER EPT EAGLE PARTIAL TRIP PARTIAL TRIP EAGLE EQH HATCH, EQUIPMENT HATCH EQUIPMENT EQIV VALVE, EQUALIZING INSTRUMENT VALVE INST. EQUALIZING EQSP SUPPORT, EQUIPMENT SUPPORT EQUIPMENT EQV VALVE, EQUALIZING VALVE IEQUALIZING ERI EAGLE RTD INPUT RTD INPUT EAGLE ES SWITCH, ELECTRICAL SWITCH ELECTRICAL EXC EXCITER GENERATOR EXCITER EXH EXHAUSTER EXHAUSTER NONE EXPJ JOINT, EXPANSION JOINT EXPANSION EXPV VALVE, EXPANSION VALVE EXPANSION FAN FAN FAN NONE FC CONTROLLER, FLOW CONTROLLER FLOW FCO VALVE OPERATOR, FLOW CONTROL VALVE OPERATOR FLOW CONTROL FCV VALVE, CONTROL, FLOW VALVE FLOW CONTROL FLOW, FDS SWITCH, DIFFERENTIAL, FLOW SWITCH DIFFERENTIAL FE ELEMENT, FLOW ELEMENT FLOW Fl INDICATOR, FLOW INDICATOR FLOW FIC CONTROLLER, INDICATING, FLOW CONTROLLER FLOW INDICATING FIS SWITCH, INDICATING, FLOW SWITCH FLOW INDICATING FIT TRANSMITTER, INDICATING, FLOW TRANSMITTER FLOW INDICATING FLG FLANGE, PIPE, PRESSURE FLANGE PIPE FLT FILTER FILTER NONE FLTR FILTER FILTER NONE FLV VALVE, FLUSH VALVE FLUSH FM MODIFIER, FLOW COMPUTATION FLOW FMT FLOWMETER FLOWMETER NONE FOC CONVERTER, FIBER OPTIC CONVERTER FIBER OPTIC FOP FIBER OPTIC PANEL PANEL FIBER OPTIC FQ TOTALIZER, FLOW COMPUTATION FLOW TOTALIZER FR RECORDER, FLOW RECORDER FLOW FS SWITCH, FLOW SWITCH FLOW FSV VALVE, SOLENOID, FLOW VALVE FLOW, SOLENOID FT TRANSMITTER, FLOW TRANSMITTER FLOW FU FUSE, ELECTRICAL FUSE NONE

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 45 of 51 Attachment 4 (Page 4 of 10)

Function Code Function Text Keyword Qualifier FUDS SWITCH, DISCONNECT, FUSIBLE SWITCH DISCONFUSIBLE GEN GENERATOR GENERATOR NONE GLCL COIL, COOLING, GLYCOL FLOOR COOLING COIL GLYCOL, FLOOR GR GEARBOX GEARBOX NONE H2AN NALYZER, HYDROGEN ANALYZER HYDROGEN H2C CONTROLLER, HYDROGEN CONTROLLER HYDROGEN H2E ELEMENT, HYDROGEN ELEMENT HYDROGEN H21 INDICATOR, HYDROGEN INDICATOR HYDROGEN H21S SWITCH, INDICATING, HYDROGEN SWITCH INDICATING, H2 H21T TRANSMITTER, INDICATING, HYDROGEN TRANSMITTER INDICATING, H2 H2M MODIFIER, HYDROGEN COMPUTATION HYDROGEN H2S SWITCH, HYDROGEN SWITCH HYDROGEN H2T TRANSMITTER, HYDROGEN TRANSMITTER HYDROGEN CATION H2ZR RECORDER, CONDUCTIVITY, CATION RECORDER CONDUCTIVITY HC CONTROLLER, HAND CONTROLLER HAND HCV VALVE, HAND CONTROL VALVE HAND CONTROL HIGH PRECISION DIGITAL TO ANALOG HDAC CONVERTER CONVERTER DIG-ANAL HI PREC HGR HANGER, PIPE HANGER PIPE HIC CONTROLLER, INDICATING, HAND CONTROLLER HAND INDICATING HOSE HOSE HOSE NONE HS SWITCH, HAND SWITCH HAND HTR HEATER HEATER NONE HTX HEAT EXHANGER HEAT EXCHANGER NONE HYC CONTROLLER, HYDRAZINE CONTROLLER HYDRAZINE HYR RECORDER, HYDRAZINE RECORDER HYDRAZINE CATION HZR RECORDER, CONDUCTIVITY, CATION RECORDER CONDUCTIVITY IBD VALVE, ISOLATION, BYPASS DRAIN VALVE ISO BYPASS DRAIN IBV VALVE, ISOLATION, BYPASS VALVE ISO BYPASS IC CONTROLLER, INTERVAL (TIME) CONTROLLER INTERVAL DV ALVE, ISOLATION, DRAIN VALVE DRAIN VOLTAGE IEC REGULATOR, VOLTAGE CONTROLLER REGULATO IEI INDICATOR, ELECTRICAL INDICATOR ELECTRICAL IFC CONTROLLER, FLOW CONTROLLER FLOW IFCV VALVE, CONTROL, FLOW VALVE FLOW CONTROL IFI INDICATOR, FLOW INDICATOR FLOW IFIT TRANSMITTER, INDICATING, FLOW TRANSMITTER FLOW INDICATING

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 46 of 51 Attachment 4 (Page 5 of 10)

Function Code Function Text Keyword Qualifier IFS SWITCH, FLOW SWITCH FLOW IFSV VALVE, SOLENOID, FLOW VALVE FLOW SOLENOID IHS SWITCH, HAND SWITCH HAND II INDICATOR, CURRENT INDICATOR CURRENT IIQ TOTALIZER, INTERVAL (TIME) COMPUTATION TOTALIZER, TIME IJB SWITCH, BYSTABLE, POWER SWITCH POWER, BYSTABLE IJS SWITCH, POWER SWITCH POWER IJY MODIFIER, POWER COMPUTATION POWER ILS SWITCH, LEVEL SWITCH LEVEL IMOD MODULE, INSTRUMENT MODULE INSTRUMENT INC CONTROLLER, DETECTOR CONTROLLER DETECTOR INI NDICATOR, NUCLEAR INDICATOR NUCLEAR INJ ALVE, INJECTOR ALVE INJECTOR INM MODIFIER, NUCLEAR COMPUTATION NUCLEAR INR RECORDER, NUCLEAR RECORDER NUCLEAR INS SWITCH, NUCLEAR SWITCH NUCLEAR INV INVERTER INVERTER NONE INY STATIC GAIN UNIT COMPUTATION STATIC GAIN IPDI INDICATOR, DIFFERENTIAL, PRESSURE INDICATOR IPDS SWITCH, DIFFERENTIAL, PRESSURE SWITCH DIFF PRESSURE IPDT TRANSMITTER, DIFFERENTIAL, PRESSURE TRANSMITTER DIFF PRESSURE IP1 INDICATOR, PRESSURE INDICATOR PRESSURE IPS SWITCH, PRESSURE SWITCH PRESSURE IPX POWER SUPPLY POWER SUPPLY NONE IS SWITCH, INTERVAL (TIME) SWITCH INTERVAL ISB SWITCH, BYSTABLE, SPEED/FREQUENCY SWITCH BYSTAB SPD/FREQ ISC CONTROLLER, SPEED CONTROLLER SPEED ISD DAMPER, ISOLATION OR FIRE DAMPER ISO OR FIRE ISI INDICATOR, SPEED INDICATOR SPEED ISIV ALVE, ISOLATION INSTRUMENT VALVE INST ISOLATION ISLV SLEEVE SLEEVE NONE ISOL ISOLATOR ISOLATION DEV ISOLATOR ISV VALVE, ISOLATION VALVE ISOLATION ISY UNIT, STATIC GAIN UNIT STATIC GAIN IT TRANSMITTER, INTERVAL (TIME) TRANSMITTER INTERVAL ITC CONTROLLER, TEMPERATURE CONTROLLER TEMPERATURE ITE ELEMENT, TEMPERATURE ELEMENT TEMPERATURE ITI INDICATOR, TEMPERATURE INDICATOR TEMPERATURE ITIS SWITCH, INDICATING, TEMPERATURE SWITCH TEMP INDICATING

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 47 of 51 Attachment 4 (Page 6 of 10)

Function Code Function Text Keyword Qualifier ITM MODIFIER, TEMPERATURE COMPUTATION TEMPERATURE ITR RECORDER, TEMPERATURE RECORDER TEMPERATURE ITS SWITCH, TEMPERATURE SWITCH TEMPERATURE ITT TRANSMITTER, TEMPERATURE TRANSMITTER TEMPERATURE ITW WELL, TEMPERATURE WELL THERMOCOUPLE ITY MODIFIER, TEMPERATURE, AUCTIONEERED COMPUTATION TEMP, AUCTIONEER IUDR RECORDER, MULTIVARIABLE RECORDER MULTIVARIABLE IUY MODIFIER, MULTI-VARIABLE COMPUTATION MULTI-VARIABLE IXDI INDICATOR, DIFFERENTIAL, SPECIAL INDICATOR DIFF SPECIAL IXI INDICATOR, SPECIAL INDICATOR SPECIAL IXQ TOTALIZER, SPECIAL COMPUTATION SPECIAL TOTALIZE IXR RECORDER, SPECIAL RECORDER SPECIAL IXS SWITCH, SPECIAL SWITCH SPECIAL IXX POWER, SUPPLY, SPECIAL POWER SUPPLY SPECIAL IZR RECORDER, ZONE (POSITION) RECORDER ZONE IZS SWITCH, ZONE (POSITION) SWITCH ZONE JB BOX, JUNCTION, TVA BOX, JUNCTION TVA JBA CONTROL UNIT, REMOTE CONTROLLER REMOTE JBM BOX, JUNCTION, MANUFACTURED BOX, JUNCTION MANUFACTURED LAC CABINET, LIGHTING, AC CABINET LIGHTING, AC LAD CABINET, LIGHTING, DC CABINET LIGHTING, DC LC CONTROLLER, LEVEL CONTROLLER LEVEL LCP LOOP CALCULATION PROCESSOR COMPUTATION LOOP PROCESSOR LCV VALVE, CONTROL, LEVEL VALVE LEVEL CONTROL LDCL LOAD CELL LOAD CELL NONE LDVX LIFTING DEVICE LIFTING DEVICE NONE LI INDICATOR, LEVEL INDICATOR LEVEL LIC CONTROLLER, INDICATING, LEVEL CONTROLLER LEVEL IND LIS SWITCH, INDICATING, LEVEL SWITCH LEVEL, IND LM MODIFIER, LEVEL COMPUTATION LEVEL LNSW LAN SWITCH SWITCH LAN LOV VALVE, LEAKOFF VALVE LEAKOFF LR RECORDER, LEVEL RECORDER LEVEL LS SWITCH, LEVEL SWITCH LEVEL LSV VALVE, SOLENOID, LEVEL VALVE LEVEL, SOLENOID LSW WITCH, LIMIT SWITCH LIMIT LT RANSMITTER, LEVEL TRANSMITTER LEVEL MCC CONTROL CENTER, MOTOR CONTROL CENTER MOTOR

CRF Watts Bar Unit 2 Completion Project . 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 48 of 51 Attachment 4 (Page 7 of 10)

Function Code Function Text Keyword Qualifier MCCC COMPARTMENT, CONTROL CENTER, MOTOR COMPARTMENT MCC MON MONITOR MONITOR NONE MR RECORDER, MOISTURE RECORDER MOISTURE MTR MOTOR MOTOR NONE MUX MULTIPLEXER MULTIPLEXER NONE MVOP OPERATOR, VALVE, MOTOR OPERATORVALVE MVOP NAR RECORDER, SODIUM RECORDER SODIUM NI INDICATOR, NEUTRON INDICATOR NEUTRON NM MODIFIER, NEUTRON COMPUTATION NEUTRON NR RECORDER, NEUTRON RECORDER NEUTRON 02A ALARM, OXYGEN ANNUC/ALARM OXYGEN O2AN [NALYZER, OXYGEN ANALYZER OXYGEN 02E ELEMENT, OXYGEN ELEMENT OXYGEN 02R RECORDER, OXYGEN RECORDER OXYGEN OR ORIFICE ORIFICE PIPE OXF TRANSFORMER, OIL-FILLED TRANSFORMER OIL-FILLED P/TR RECORDER, PRESSURE AND TEMPERATURE RECORDER PRESS/TEMP PC CONTROLLER, PRESSURE CONTROLLER PRESSURE PRESSURE PCO VALVE OPERATOR, PRESSURE CONTROL ALVE OPERATOR CONTROL PCV VALVE, CONTROL, PRESSURE VALVE PRESS CONTROL PDC CONTROLLER, DIFFERENTIAL, PRESSURE CONTROLLER PRESSURE DIFF CONTROL OPERATOR, DIFFERENTIAL CONTROL PDCO PRESSURE OPERATOR PRESSURE DIFF PDCV VALVE, CONTROL, DIFFERENTIAL, PRESSURE VALVE CNTRL PRES DIFF PDI INDICATOR, DIFFERENTIAL, PRESSURE INDICATOR PRESSURE DIFF CONTROLLER, INDICATING, DIFFERENTIAL PDIC PRESSURE CONTROLLER PRESS DIFF IND SWITCH, INDICATING, DIFFERENTIAL, PDIS PRESSURE SWITCH PRESS DIFF IND TRANSMITTER, INDICATING, DIFFERENTIAL, PDIT PRESSURE TRANSMITTER PRESS DIFF IND PDM MODIFIER, DIFFERENTIAL, PRESSURE COMPUTATION PRESSURE DIFF PDR RECORDER, DIFFERENTIAL, PRESSURE RECORDER PRESSURE DIFF PDS SWITCH, DIFFERENTIAL, PRESSURE SWITCH PRESSURE DIFF PDT TRANSMITTER, DIFFERENTIAL, PRESSURE TRANSMITTER PRESSURE DIFF PENT PENETRATION PENETRATION NONE PFV VALVE, FLOW, PROCESS VALVE PROCESS, FLOW PHC CONTROLLER, PH CONTROLLER PH PHR RECORDER, PH RECORDER PH PI INDICATOR, PRESSURE INDICATOR PRESSURE

CRF Watts Bar Unit 2 Completion Project 25402-000-GPP-0000-TI216 Unit 2 Refurbishment Program Rev. 0002 Page 49 of 51 Attachment 4 (Page 8 of 10)

Function Code Function Text Keyword Qualifier PIC CONTROLLER, INDICATING, PRESSURE CONTROLLER PRESS INDICATING PIPE PIPE PIPE NONE PIS SWITCH, INDICATING, PRESSURE SWITCH PRESS INDICATING PIT TRANSMITTER, INDICATING, PRESSURE TRANSMITTER PRESS INDICATING PL PLATE PLATE NONE PM MODIFIER, PRESSURE COMPUTATION PRESSURE PMC CONTROLLER, PROGRAMMABLE CONTROLLER PROGRAMMABLE PMCL COOLER, PUMP COOLER PUMP PMP PUMP PUMP NONE POS POSITIONER POSITIONER NONE PS SWITCH, PRESSURE SWITCH PRESSURE PSP SUPPORT, PIPE SUPPORT PIPE PSV VALVE, SOLENOID, PRESSURE VALVE PRESS, SOLENOID PT TRANSMITTER, PRESSURE TRANSMITTER PRESSURE PX POWER SUPPLY POWER SUPPLY NONE

• RA ALARM, RADIATION ANNUC/ALARM RADIATION RADL LINE, INSTRUMENT, RAD MONITORING INSTRUMENT LINE RAD MONITORING RCKV VALVE, RECIRCULATING, CHECK VALVE CHECK, RECIRC CONTROL RCV VALVE, CONTROL, RADIATION VALVE RADIATION RE ELEMENT, RADIATION ELEMENT RADIATION REC RECORDER RECORDER NONE RES RESISTOR, ELECTRICAL RESISTER NONE RFV VALVE, RELIEF VALVE RELIEF RI INDICATOR, RADIATION INDICATOR RADIATION RLY RELAY RELAY NONE RM MODIFIER, RADIATION COMPUTATION RADIATION ROD ROD, CONTROL CONTROL ROD NONE RPV VESSEL, REACTOR PRESSURE VESSEL REACTOR PRESS RR RECORDER, RADIATION RECORDER RADIATION RTV ALVE, ROOT VALVE ROOT SC CONTROLLER, SPEED CONTROLLER SPEED SCO OPERATOR, CONTROL, SPEED OPERATOR SPEED CONTROL SCR RECTIFIER, SILICON CONTROLLED RECTIFIER SCR SEAL SEAL SEAL NONE SEC CONTROLLER, SERIAL ETHERNET CONTROLLER SERIAL ETHERNET SENL LINE, SENSE, INSTRUMENT INSTRUMENT LINE SENSE SFV VALVE, SAFETY VALVE SAFETY STEAM SGEN GENERATOR, STEAM GENERATOR NUCLEAR SHKA SHOCK ABSORBER SUPPORT SHOCK ABSORBER SI INDICATOR, SPEED INDICATOR SPEED SIC CONTROLLER, INDICATING, SPEED CONTROLLER SPEED INDICATING

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Function Code Function Text Keyword Qualifier SIR RECORDER, SILICA RECORDER SILICA SLV SLEEVE SLEEVE NONE SM MODIFIER, SPEED COMPUTATION SPEED SMV ALVE, SAMPLE VALVE SAMPLE SNUB PIPE SUPPORT, SNUBBER SUPPORT PIPE, SNUBBER SOL SOLENOID SOLENOID NONE SPPC PIPE, SPOOL PIECE PIPE SPOOL PIECE SPV VALVE, SPECIAL VALVE SPECIAL SS SWITCH, SPEED SWITCH SPEED STR STARTER, MOTOR STARTER MOTOR STRU STRUCTURE STRUCTURE NONE SUPP UPPORT, MISCELLANEOUS SUPPORT MISCELLANEOUS SW SWITCH, DISCONNECT SWITCH DISCONNECT TANK TANK TANK. NONE TB TERMINAL BLOCK (STRIP) TERMINAL BLOCK STRIP TBG TUBING TUBING NONE TBLK BLOCK, TERMINAL (STRIP) TERMINAL BLOCK STRIP TC CONTROLLER, TEMPERATURE CONTROLLER TEMPERATURE CONTROL OPERATOR, TEMPERATURE CONCROL TCO (DAMPER) OPERATOR TEMP (DAMPER)

TCV VALVE, CONTROL, TEMPERATURE VALVE TEMP CONTROL TD TRANSDUCER TRANSDUCER NONE TE ELEMENT, TEMPERATURE ELEMENT TEMPERATURE THV VALVE, THROTTLING VALVE THROTTLING TI INDICATOR, TEMPERATURE INDICATOR TEMPERATURE TIC CONTROLLER, INDICATING, TEMPERATURE CONTROLLER TEMP/INDICATING TIS SWITCH, INDICATING, TEMPERATURE SWITCH TEMP/INDICATING TM MODIFIER, TEMPERATURE COMPUTATION TEMPERATURE TMR TIMER SWITCH INTERVAL TNK TANK TANK NONE TR RECORDER, TEMPERATURE RECORDER TEMPERATURE TRAP TRAP TRAP NONE TS SWITCH, TEMPERATURE SWITCH TEMPERATURE TSV VALVE, SOLENOID, TEMPERATURE VALVE TEMP SOLENOID TT TRANSMITTER, TEMPERATURE TRANSMITTER TEMPERATURE TTIV VALVE, TELLTALE, INSTRUMENT ALVE TELLTALE,INST TTV [ALVE, TELLTALE VALVE TELLTALE TUBE TUBE TUBE NONE TURB TURBINE TURBINE NONE TV VALVE, TEST VALVE TEST TW WELL, TEMPERATURE WELL THERMOCOUPLE UDR RECORDER, TREND RECORDER TREND UPX POWER SUPPLY, UNINTERRUPTIBLE POWER SUPPLY UNINTERRUPTIBLE

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Function Code Function Text Keyword Qualifier UY MODIFIER, MULTI-VARIABLE COMPUTATION MULTI-VARIABLE VBRV VALVE, VACUUM BREAK VALVE VACUUM BREAK VE ELEMENT, VIBRATION ELEMENT VIBRATION VEXT EXTRACTOR, VAPOR VAPOR EXTRACTOR NONE VI INDICATOR, VIBRATION INDICATOR VIBRATION VLV VALVE VALVE NONE VM MODIFIER, VIBRATION COMPUTATION VIBRATION VPMP PUMP, VACUUM PUMP VACUUM VR RECORDER, VIBRATION RECORDER VIBRATION VT TRANSMITTER, VIBRATION TRANSMITTER VIBRATION VTIV VALVE, VENT, INSTRUMENT VALVE VENT, INSTRUM'NT VTR RECORDER, TAPE, VIDEO RECORDER VIDEO TAPE VTV VALVE, VENT ALVE VENT WELD WELD WELD NONE WHM METER, WATTHOUR INDICATOR WATTHOUR XC CONTROLLER, SPECIAL CONTROLLER SPECIAL XDV VALVE, DIVERTER, SPECIAL VALVE SPECIAL DIVERTER XFA TRANSFORMER TRANSFORMER NONE XFMR TRANSFORMER TRANSFORMER NONE XHP TRANSMITTER AUXILIARY POWER SUPPLY TRANSMITTER AUX PWR SUPPLY, XI INDICATOR, SPECIAL INDICATOR SPECIAL XIC CONTROLLER, INDICATING, SPECIAL CONTROLLER SPECIAL INDICATI XIS SWITCH, INDICATING, SPECIAL SWITCH SPECIAL XM MODIFIER, SPECIAL COMPUTATION SPECIAL XMTR TRANSMITTER TRANSMITTER NONE XR RECORDER, SPECIAL RECORDER SPECIAL XRJB JUNCTION BOX, SPECIAL BOX SPECIAL,JUNCTION XS SWITCH, SPECIAL SWITCH SPECIAL ý XSW SWITCH, TRANSFER SWITCH TRANSFER XT TRANSMITTER, SPECIAL TRANSMITTER SPECIAL XX POWER SUPPLY, SPECIAL POWER SUPPLY SPECIAL ZI INDICATOR, ZONE (POSITION) INDICATOR ZONE ZS SWITCH, ZONE (POSITION) SWITCH -ZONE