ML20073P949

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Rev 5 to WMC-051, WNP-3 Preventive Maint Requirements by Equipment Type
ML20073P949
Person / Time
Site: Satsop
Issue date: 05/13/1991
From: Leslie Hill, Reid C, Renee Taylor
WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:
Shared Package
ML20073P948 List:
References
WMC-051, WMC-51, NUDOCS 9105240223
Download: ML20073P949 (40)
v • d • e


Text

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PROCEDURE A3 TEND 5 TENT I

A31END51ENT NO.

REv.NO.* DATED:

TO:(PROCEDURE NO. AND TITLE) UMC-C51, Appendi x A Preventive Maintenance Recuirements by Ecuio. Tvoe 5 01-1P-91 AF F ECT E D P AR A.'SECTION: EXPIRATION D ATE:

  • APPUCABLE PROJECTS:

EFF ECTivE D ATE:

B.5.a & Table 5.1 NEXT REVISION OFADDend, A WNP-3 02 21-91

1) Change the title of Paragraph B.S.a to Preservation Requirenents
2) Modify Paragraph B.5.a, Preservation Requirements, as shown below:
  • Replace Requirement 2) with the follcwing:

Category 11 Areas - Equipment covers are not required. Supplemental heat 2) is required if directed by Preservation Engineering.

Replace Pequirement 8) with the following:

E) A nitrone anket (min. 5 PSI, rax 25 PSI) shall be maintained on the Waste Gas Corpressors 1A and IB and also on the Gas Recombiner and fiitrogen Recycle Ccroressors.

  • Peplace Requirerent 9) with the fcilewing:
9) The gas compressor fly wheels shall be blocked to prevent rotaticn (applies to Waste Gas Corpressor 1 A and IB, Gas Feconoiner and the Nitrogan Recycle Compressor).
3) Acc the folicwing requirerents to Paragraph B.E.3:

10\ The vacuur purs and air blewe shaf ts shall te rr'. ate: duries eac-esternal inspectico.

11) Snafts of rotor drivers end gear reducers srall be rc*.ated during eech exterral ins:ecticr (;eference 4 :endiy A, Sections 12 an: 191 ,
12) C ntrol ord instrurent b;<ss a r M d c r e .;u ' ' e n t s ics recuire teriadic irternal ir.scectitr,s if 199 5 id is 1:;3te: 1r a C3.e; cry IV ervircrrent

(?ef erence .'::endi:. A, Sec ti:r 11).

  • Unless otherwise stated, amendment attects this revision and succeeding revtslons.

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AMENDMENT NO. DATED:

WMC-051-A-1,5 02-21-91 PACE OF

'l0524 _'23 910513 wa 47s n2 (7 893 HiR MOa (;*-(>cxGM A FDR - _ _ _ _ _ _ _ _ _ - _ _ - _ _ _ .

TABLE 5.1-PAGE 1 0F 1 me ,

$5 AIR AND GAS COMPRESSORS, VACUUM PUMPS AND

! [, fg AIR BLOWERS EXTERNAL' INSPECTION SCllEDULE g, o7 L ,p

~-

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u' ENVIRONMENTAL CATEGORY / STORAGE LEVEL I

1) SAFETY RELATED EQUIPMENT
a. DG Air Start Compressor Skids 01 year
b. Waste Gas Compressors lA & IB Skids 06 month
c. Gas Recombiner Skid 06 month
d. Nitrogen Recycle Compressor Skid 06 month l

l I II & B Ill IV

2) NON-SAFETY RELATED EQUIPMENT
a. Air Compressor Skid (greater than 3 IIP 02 year 02 year 06 month 03 month to 25 llP)
b. Air Compressor Skid (greater than 25 IIP) 01 year 01 year 06 month 03 month
c. Vacuum Pump Skid (greater than 100 IIP) 06 month 06 month 03 month
  • 03 month
d. Air Blower Skid (greater than 3 IIP to 02 year 02 year 03 month
  • 03 month 25llP) >
e. Air Blower Skid (greater than 25 llP) 01 year 01 year 03 month 03 month Inspection frequency may be extended to 06 month based on specific environmental conditions at equipment locations, llP size and bearing type.

s WNP-3 PRESERVA110t1 PROGRt.M APPEtiDIX A TO WMC-051 WNP-3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUIPMENT TYPE PREPARED BY:

I O /

C. G. Reid, WNP-3 Preservation Engineering Manager

(.,Lf /L / g-cy/

B. H. Bray, WNPW Preservation Engineering t ul H /tshi L. Hale, WNP-3 Preservation Engineering

  1. /

APPROVED BY:

ne ing Manager C. G. Reipp WNP,J.Sregervat{on En 2 T#~7 K

$4M.d/ Ah/

f L.}hy/eatfl , WifP-3 Tech 6icaT Manager

/

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)4 blA /-/T4/

'. Ai Hill, WNP-3 Plant Preservation Manager S e a.k e eh Sle C M i/o/n L. T. Ahlman, Ebasco Project Engineer urt kt /-/8 -9 /

W. K. O kard, WN -3 Quality Assurance Manager Acting

[.

R.'M. Tay Wr WNP//DeputyS'teManager an L ) l C. M. Butros, WNP-3 Y te Manager WMC-051 APPEN0iX A, REV. 5 01/18/91

s

. WNP 3 PRESERVATION PROGRAM APPENDIX A TO WMC-051 WNP 3 PREVENTIVE MAINTENANCE REQUIREMENTS ,

BY EQUIPMENT TYPE PREPARED BY:

C. G. Reid, WNP-3 Preservattun Engineering Manager fh 4 bl$Wl B. H. Bray, WNPW Preservation Engineering W h UFH Vishi L. Male, WNP-3 Preservation Engineering

~

APPROVED BY: er Eng nea ing Manager C. G. Reiy WNP Am %s#X ~

. L. PpMt, VNP-3 TechtficaT Manager dah L. A. Hill, WNP-3 Plant Preservation Manager

  1. 4% /f/Off/

. T. Ahlman, Ebasco Project Engineer W. K. Drinkard, WNP-3 Quality Assurance Manager Acting R. M. Taylor,, WNP-3 Deputy Site Manager C. M. Sutros WNP-3 Site Manager WMC-051 APPENDIX A, REY. 5 01/18/91

    • TOTAL PAGE.212 **

2128393420 PAGE,002 JAN 15 '91 13:35

, WNP-3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUIPMENT TYPE TABLE OF CONTENTS Page

1. INTRODUCTION 1 1
11. OBJECTIVES 1

111. APPLICATION IV. 2 REQUIREMENTS BY EQUIPMENT TYPE A. Basis for Establishing Requirements 2 B. Requirements By Type 2

1. Pumps 2
2. Valves 5
3. Valve Actuators 7
4. Instrumentation & Computers 9
5. Air and Gas Compressors, Vacuum Pumps &

Air Blowers 11

6. Tanks 13
7. Piping 15
8. Heat Exchangers 17
9. Switchgear, Motor Control Centers, Control Panels, and Miscellaenous Electrical Panels 19
10. Outdoor Oil Filled Transformers 21
11. Indoor Dry Type Transformers 22
12. Motors 23
13. Cranes and Hoists 25
14. HVAC Water Chillers 26
15. Evaporative Air Coolers, Air Handling Units, Air Cleaning Units, Air Conditioning Units, Cooling Towers and Fans 27
16. Mechanical Penetrations Assemblies 28
17. Electrical Penetrations 29
18. Rebar, Embeds and Structural Steel 30
19. Gear Drives / Gear Reducers 31
20. Pipe Supports - Snubbers, Struts and Spring Cans 32
21. Local Mounted Electrical / Instrumentation Equipment 33
22. Preservation Requirements For Non-Safety Related Station Batteries 34 WMC-051 APPENDIX A, REV. 5 01/18/91 -i-

.~ ..~ .- -. - - - - ..

,- WNP-3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUIPMENT TYPE I. It@0 DUCTION Appendix A, Preventive Maintenance Requirements By Equipment Type, is an integral part of WNP-3's Preservation of Assets Program. It has been developed to establish standardized preventive maintenance requirements for generic classes of permanent plant equipment. Appendix A primarily addresses preventive maintenance requirements for equipment which is in storage or installed, but for some equipment types, operational mainte-nance requirements are also included. In 1990, Appendix A was expanded to cover more equipment types and to provide the basis for and greater detail on the requirements necessary for preservation.

In addition, different levels of maintenance were established by. equip-ment type. These levels of maintenance are commensurate with the specific need imposed by each different environmental condition in the plant and outdoor areas to which the equipment is exposed, II. OBJECTIVES The objective of this appendix is to establish standardized maintenance requirements for the general types of permanent plant equipment.

Implementation of these standardized requirements for maintenance in conjunction with other attributes of the WMC-051 Program will maximize the continuing functionality of the equipment while minimizing the economic risk.

III. APPLICATION The standardized requirements included in Appendix A are the basis for preventive- maintenance for all equipment contained within each equipment type. However, in accordance with the Program Statement, Paragraph 4.2, deviations are permitted for specific equipment from those requirements t- specified ~ in Appendix--A. Also, when applying' Appendix A requirements, care must be taken to assure the equipment is compatible with the standard maintenance direction. This review-is particularly important for non-standard, unique equipment.

All external and internal inspections required by this document shall be

_ performed per the requirements of CSP-9-02 and any supplemental- direction contained herein.

WMC-051 APPENDIX A, REV. 5 01/18/91 WNP-3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUIPMENT TYPE IV. REQUIREMENTS BY EQUIPMENT TYPE A. BASIS FCR THE STANDARDIZED REQUIREMENTS For each equipment type included in this Appendix, the basis for the standardized maintenance is noted, in most applications protection of the equipment from corrosion or other moist"re caused degradation is the paramount concern. Accordingly, the level of preventive maintenance specified in Appendix A is directly proportional to the severity of the environment in which the equipment is located. The Program Statement, Paragraph 3.3, has classified the plant areas into four environmental categories. These categories are used throughout Appendix A to specify preventive maintenance requirements. The four categories are:

Category 1 - Inside the RAB/RB 3uperstructure. No protection from the environment required.

Category II - Inside Heated Buildings Other Than the RAB/RB Superstructures. Minimal protection from the environment required.

Category III - Inside Unheated Buildings. Protection required for sensitive items, Category IV - Outdoors (any area which is directly exposed to the outside environment). Significant protection required for most items.

B. REQUIREMENTS BY TYPE

1. Pumos The basis for the pump preservation methods specified below is the prevention of corrosion on all machined and bearing surfaces and the maintenance of adequate corrosion inhibitors, oil film and/or grease coatings on critical pump components.
a. Preservation Requirements
1) All openings are to be sealed utilizing caps, plugs, tape, etc. In Environmental Category 1, equipment openings may be screened to allow ventilation if specified by Preservation Engineering.
2) Pump cavities require no preservation activity unless a corrosion concern is identified, at which time specific instructions will be issued by Preservation Engineering.

WMC-051 APPENDIX A, REV. 5 01/18/91  :

WNP-3 PREVEf1TIVE MAINTEt4ANCE REQUIREMEt4TS BY EQUlPMEtiT TYPE B. REQUIREMENTS BY TYPE (Cont'd)

1. Pumps (Cont'd)
3) Unpainted external machined surfaces shall be coated with an approved preservative (Ref. CSP 9-04).
4) The lubrication coating on bearing surfaces shall be replenished by periodic shaft rotation except for the following cases where shaft rotation can be deleted.

a) Vertical pumps (including submersible type);

after a review by Preservation Engineering on a case-by-case basis.

b) Any pump where the corrosion inhibitor Vaportec has been added to the oil and the resulting coating on bearing surfaces prevents normal shaft rotation.

c) Small pumps located in Environmental Categories 1, 11 and III for which periodic inspections have been deleted as indicated in Table 1.1.

d) Self-lubricating pumps (For these pumps, shaft rotation is not desirable, since the bearings are not grease or oil lubricated).

5) The addition of supplemental corrosion inhibitors or the overfilling / immersion of machine surfaces with oil may be utilized if specified by Preservation Engineering.
6) A vented, water-proof protective shroud and/or supplemental heat shall be provided if specified by Preservation Engineering. SMS task cards should indicate pumps with shrouds,
b. Periodic Maintenance Requirements Shaft rotation and external inspection shall be performed per CSP-9-02 and as specified in Table 1.1.

WMC-051 APPENDIX A, REV. 5 01/18/91 _ _ - _ _ _ _ _ __- .

- 3_ PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUIPMENT TYPE llREMENTS-BY TYPE (Cont'd)

=c, Special Requirements

-1)- _011- and/or grease sampling, if applicable, will be specified and schedules established by Preservation Engineering under separate instructions (Ref, Appendix E),

2) Pumps .with special vendor storage / maintenance requir-ements will be addressed by Preservation Engineering on a-case by case basis-and noted on the SMS card (s),

_Any required cleaning or internal inspections of ,

3) l pumps preserved with- Vaprotec will be addressed by )

Preservation Engineering on an MWR, 1

EV. 5-

TABLE 1.1 ~

PAGE 1 0F 1 .

PUMP ROTATION AND/OR EXTERNAL INSPECTION SCllEDULE ,

ENVIRONMENTAL CATEGORY / STORAGE LEVEL I B

1) SAFETY RELATED PUMPS I
a. 7.5 llP or less None 02 year
b. Greater than 7.5_llP up to 25 llP 02 year 01 year
c. Greater than 25 llP up to 100 llP 01 year 06 month
d. Greater than 100 llP up to 250 IIP 06 month 06 month
e. Greater than 250 llP 03 month
  • 03 month
  • I II & B III IV
2) fl0N-SAFETY RELATED PUMPS _
a. s .P or less None None None 03 month
b. Greater than 3 flP up to 15 llP None None 06 month 03 month
c. Greater than 15 IIP up to 25 IIP 02 year 02 year 03 month
  • 03 month
d. Greater than 25 llP up to 100 llP 01 year 01 year 03 month
  • 03 month
e. Greater than 100 llP up to 250 IIP 06 month 06 month 03 month 03 month 1
f. Greater than 250 IIP 03 month
  • 03 month
  • 03 month 03 month Inspection frequency may be extended to 06 month based on . specific environmental conditions at equipment locations, ilP size and bearing type.

n

, WNP-3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUIPMEN1 TYPE B. REQUIREMENTS BY TYPE (Cont'd)

2. Valves The basis for the valve preservation methods specified below is the p'revention of corrosion attack on valve internals and all l machined surfaces,
a. Valves located in Environmental Category 1, 11 & III - No SMS inspections required. Valve condition will be monitored as part of the Corrosion Monitoring Program (CMP) walkdowns.
1) Valve operation is not required except as specified by Preservation Engineering. q
2) Preservatives on unprotected carbon steel machined surfaces should be maintained.
3) It is preferred that installed valves (butteryfly type in particular) be left in an open (or partially opened) condition to allow for t.ir circulation within the piping system. Note: Valves providing a corrosion inhibitor (nitrogen gas, desiccant, Cortec, etc.) or environmental / system boundary shall be maintained closed.
4) Non-installed valves shall have their openings scaled to maintain cleanliness,
b. Valves located in Environmental Category IV - SMS inspec-tions of non-manual valves are to be performed at 3 month intervals. Note: Inspections should be coor.11nated with valve actuator inspections when applicable. Valve condition will also be monitored as part of the Corrosion Monitoring Program (CMP) walkdowns.
1) Valve operation is not required except as specified by Preservation Engineering.
2) Preservatives shall be maintained on carbon steel machined surfaces and other carbon steel surfaces which collect water.
3) All exposed valve openings shall be covered to prevent entrance of debris and water, WMC-051 APPENDIX A, REV. 5 01/18/91 .

. Wi4P-3 PREVENilVE Malt 1TEtlAtiCE REQUIREMEt1TS BY EQUIPMEt1T TYPE B. REQUIREMENTS BY TYPE (Cont'd)

2. Valves (Cont'd)
4) Shrouds should be used in cases where environmental exposure may be detrimental to the long-term preservation of the valve. Shrouds must allow air circulation to the valve.
5) Algae growth shall be removed from the exterior surfaces of stainless steel valves.
c. Special Requirements
1) The use of desiccants or other corrosion inhibitors on valve internals will be specified by Preservation Engineering on a case-by-case basis.
2) Specific vendor requirements for specialty valves shall not be deleted without written authorization by Preservation Engineering.
3) See Section B.3. " Valve Actuators" for additional valve maintenance requirements.

WMC-051 APPENDIX A, REV. 5 01/18/91 __-________ - _ - _

jWf1P3PREVENTIVEMAlftTENANCEREQUIREMENTSBYE0VIPMEf1TTYPE l

REQUIREMENTS BY TYPE (Cont'd)

3. Valve A_q.tuators The basis for the valve actuator preservation methode specified below is the prevention of corrosion attack on critical operator parts and machined surfaces.
a. Methods of Preservation
1) Operation of actuator.
2) Overfilling / immersion of machined surfaces with lubrication.
3) Application of internal corrosion inhibitors as directed by Preservation Engineering.
4) Coating of machined surfaces with an approved preservative.
5) Utilization of space heaters or addition of supplemental heating.
b. Periodic Maintenance Requirements
1) Valve cperators located in Environmental Categories I

& II - No SMS inspections required. The condition of valve operators will be monitored as part of the Corrosion Monitoring Program (CMP) Walkdowns.

2) Valve operators located in Environmental Category Ill.

o SMS external inspection to be performed every two years.

o All exposed machined surfaces to be coated with approved preservatives, o Motor operated valves - Energize space heaters where provided.

o Pneumatic cylinder actuators - No internal preservation inspections / coatings required.

Note: Cylinder internals may have been previously coated with a vapor phase inhibitor.

EV. 5 l

ht1P-3 PREVEt4TIVE MAlf41Ef4At1CE REQUIREMEt11S BY EQUIPMElli TYPE B. REQUIREMEt4TS BY TYPE (Cont'd)

3. Valve Actuators (Cont'd)
3) Valve operators located in Environmental Category IV.

o SMS external inspection to be performed quarterly, o SMS internal inspection to be performed annually.

o All exposed machined surfaces are to be coated with an approved preservative.

1 o Motor operated valves - Energize space heaters where provided.

o Pneumatic cylinder actuators -

Coat cylinder internals with an approved corrosion inhibitor.

o Supplemental protection and heating may be required in some cases. Preservation Engineering will issue direction on a case-by-case basis, o An insulation resistance test per CSP-9-02 shall be performed on two motor operated valve motors selected by Preservation Engineering on an annual basis,

c. Special Requirements
1) Motor operators - It is recognized that grease separation will occur during long-term preservation and continued oil loss can result in loss of lubrication and corrosion prevention properties.

This condition will be monitored and corrective action taken as necessary on a case by-case basis.

2) Manual actuators -

No preventive maintenance required.

3) Solenoid actuators - May be periodically energized as part of the preservation program if stipulated by Preservation Engineering.
4) Oil and/or grease sampling, if applicable, will be specified and schedules established by Preservation Engineering under separate instructions (Ref.

Appendix E).

WMC-051 APPENDIX A, REV. 5 01/18/91 _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ __ _ ___

. -WNP 3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUIPMENT TYPE B. REQUIREMENTS BY TYPE (Cont'd)

4. Lrtstrumentation and Computers IAppendix 0 identifies the elements which can cause degradation of electrical and electronic components. The elements of primary concern- during preservation are moisture / humidity and airborne contamination. This section implements, as its basis, the concept of preventing degradation by keeping these com-ponents warm, _ dry and clean.
a. Preservation Requirements
1) Space heaters contained within installed equipment shall be energized.
2) 'A shroud and supplemental heat shall be provided if equipment is installed in a Category II,111 or IV environment.
3) -If in storage, equipment shall be placed in a level B (or Level A) storage area.
4) Enclosed _ equipme_nt, not protectsd by a shroud, shall have its enclosure maintained du s t - t i g ht _. All openings, including - floor openings, shall be sealed to maintain a low dust environment.
5) If. required, the shroud should provide a waterproof, dust resistant covering over the equipment. Where feasible, an air' space'should be maintained.between the equipment and the shroud.
6) Equipment located in the control room and the adjoining relay rooms - is protected from temperature-variation and humidity by a temporary heating and-air conditioning _-system. - - A positive inflow of filtered air is' also maintained into this area to reduce dust accumulation.
b. Periodic Maintenance Requirements
1) Equipment located in Category I environment -

o External visual SMS inspections per CSP-9 ,

shall be performed every 12 months on equipment I

located outside the control room and adjoining:

relay rooms.

WMC-051 APPENDIX A, REV 5 01/18/91 ,

- WNP-3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUIPMENT TYPE B. REQUIREMENTS BY TYPE (Cont'd)

4. Instrumentation and Computers (Cont'd) o External visual SMS inspections per CSP-9-02 shall be performed every 24 months on equipment located inside the control room and adjoining relay rooms.

o Internal inspections shall be performed every two years. Included with the internal visual inspection shall be an inspection of subas-semblies for evidence of corrosion, loss of dust tight seal, and dust accumulation. Dust, if observed, shall be wiped or vacuumed from components and cabinets. Filters covering panel openings shall be cleaned or replaced if dirty.

2) Equipment located in Category 11 environment -

External and internal visual SMS inspections shall be performed as required for Category I except external inspections shall be performed on a quarterly basis.

3) Equipment located in Category 111 and IV environments - External and internal visual SMS inspections shall be performed as required for Category I except external inspections shall be performed quarterly and internal inspections performed yearly.

WMC-051 APPENDIX A, REV. 5 01/18/91 _____ -_ _ ___-____

t WNP-3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUIPMENT TYPE B .- REQUIREMENTS BY TYPE (Cont'd)

5. Air and Gas Compressors. Vacuum Pumps & Air Blowers The basis for the preservation methods specified below is the prevention of corrosion attack on moving parts and machined surfaces. This is critical because of the material makeup and l close machine tolerances of this equipment. To prevent i moisture caused degradation, this equipment is maintained in a j low humidity environment and/or supplemental corrosion i protection is provided. Inspection and preventive maintenance frequencies are based on the severity -of the environment maintained at the equipment location. In addition, air compressors, vacuum pumps and air blowers are periodically rotated to maintain a . protective coating of oil over oil lubricated internal components and to insure that the com-ponents continue to operate freely,
a. Method (s) of Preservation-
1) Category I Areas - Equipment covers and supplemental heat is not required.

2)- Category  !! Areas -

Equipment covers are not-required. Supplemental heat is required.

3) Category III & IV - Equipment covers and supplemental heat are reauired.
4) Supplemental heat shall consist. of heat tape and insulation wrapped around the cylinders and valve assemblies or other methods as directed by

-Preservation Engineering.

5) All air compressor and vacuum pumps (except item 6 below) shall be filled to proper operating levels with recommended lubricants.
6) During the- preservation period, the following equipment shall be filled up to the fill-ports with.

recommended oils.

~

o Roots / Dresser rotary lobe blower impeller cases, o Nash vacuum pump-1st-& 2nd stage pump housings.

o Waste gas compressor IA & 18.

o Gas recombiner, o Nitrogen recycle compressor.

7) Oil and/or grcase sampling, if applicable, will be specified and schedules established by Preservation Engineering under separate instructions (See Appendix E).

WMC-051 APPENDIX A, REV. 5 01/18/91 -- . - . .. -

- , _ . _ . _ _ . _ . _ _ _ _ _ - _ .- _ - _ _ . . _ . . _ _ _ . _ . . _ - . _ - ~ . _ , . _ _ . . _ _ . . _ _

'WNP 3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUIPMENT TYPE B. REQUIREMENTS BY TYPE (Cont'd)

5. - Air and Gas Compressors. Vacuum Pumns & Air Blowers (Cont'd) 1B) - A nitrogen blanket shall be inaintained on the waste gas compressors lA & 18 and: also on the gas recombiner and nitrogen recycle compressors.

-9) Where prudent and feasible, air compressors, vacuum pumps and air blowers shall be put into service and maintained as operational equipment.

b. Periodic Maintenance Requirements-See Table 5.1 attached.

i I

WMC-051

j. APPENDIX A, REV. 5 g -01/18/91 i l- -

TABc 5.1.

Page I of 2 -

MAINTENANCE REQUIREMENTS

~

I INSPECTION CATEGORY I CATEGORY II CATEGORY III &

ENVIRONMENT ENVIRONMENT IV ENVIRONMENT MAINTENANCE REQUIREMENTS FREQUENCY M

External Inspection - Air blowers: 1. Check 03-Month operation of supplemental heat. 2. Check equip-ment enclosure for water leaks. 3. Inspect equipment for deleterious conditions. 4. Check oil levels & for oil leaks. S. Rotate shafts per CSP-9-02.

06-Month M External Inspection - Compressors: 1. Check operation of supplemental heat. 2. Inspect equipment for deleterious conditions. 3. Check oil levels & for oil leaks. CSP-9-02 Ex cnal Inspection - Compressors, vacuum pumps 06-Month M

& .ir blowers: 1. Inspect equipment for delete-

.io s conditions. 2. Check oil levels and for oil leaks. CSP-9-02 M

Internal Inspection - Air compressors: 1. Inspect 01-Year electrical junction boxes and instrumentation for deleterious conditions. 2. Open access covers and expose cylinders, valves and connecting rod areas and inspect for corrosion. Coat all " wet areas" (IE) rod bearings, valves, gears and cylinder walls, if splash lubricated, with recommended lubricants, then rotate compressor and motor per CSP-9-02.

M = Maintenance function

TA _ 5.1 Page 2 of 2 .

Mt.INTEf1ANCE REQUIREMENTS INSPECT!0ft CATEGORY I CATEGORY II CATEGORY III &

EllVIRONMEf1T ENVIRONMENT IV ENVIRONMENT MAINTENANCE REQUIREMENTS FREQUENCY Internal Inspection - Air compressors: 1. Inspect 02-Year M electrical junction boxes and instrumentation for deleterious conditions. CSP-9-02 M

External Inspection - Vacuum pumps: I. Check all 03-Month oil levels. 2. Check operation of supplemental heat. 3. Inspect equipment for deleterious conditions. 4. Rotate gear reducer and pump shafts per CSP-9-02.

External Inspection - Waste gas compressor I A & 06-Month M 18, gas recombinder and nitrogen recycle compres-sors: 1. Check oil levels (should be above sight glass). 2. Check that fly wheels are blocked.

3. Check nitrogen blanket MIfl 5 PSI, MAX 25 PSI.

Internal Inspection - Waste gas compressor IA & 02-Year M IB, gas reco-isinder and nitrogen recycle compres-sor: 1. Check local control cabinets and instru-mentation for deleterious conditions. 2. Inspect for broken or damaged components.

M - Maintenance Function 1

WNP-3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQU1PMENT TYPE

8. REQUIREMENTS BY TYPE (Cont'd)
6. Tanks The basis for the tank preservation methods specified below, is the prevention of corrosion attack on interior and exterior tank :urfaces. For carbon steel, elimination of the potential for standing water is the primary concern. For stainless steel, maintaining surfaces free of organic-and/or carbon con-tamination is the primary concern.
a. Preservation Requirements
1) All openings are to be sealed utilizing caps, plugs, tape, etc. Tanks located in Environmental Category 1, should have the main access openings screened.
2) Unpainted external machined surfaces shall be coated with an approved preservative (Ref. CSP-9-04).
3) The addition of supplemental corrosion inhibitors may be utilized if specified by Preservation Engineering.
4) Stainless steel surfaces shall be maintained free of carbon contamination and organic-growth.
5) Vendor or project installed coatings and linings shall be maintained.
6) Tanks or vessels under a nitrogen purge shall be maintained in a leak tight, positive pressure condition.
b. Periodic Maintenance Requirements
1) Tanks located in Environmental Categories I, 11 and III - No SMS inspections required. Tank condition will be monitored as part of the Corrosion Monitoring Program-(CMP) Walkdowns.
2) Tanks located in Environmental Category IV -

o Carbon Steel -

Internal surface bare. Perform an external and internal visual SMS inspection per CSP-9-02 on six-month intervals.

WMC-051 APPENDIX A, REV. 5 01/18/91 WNP-3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUIPMENT-TYPE B. REQUIREMENTS BY TYPE (Cont'd)

6. Tanks (Cont'd; o Carbon Steel -

Internal surfaces lined or l coated. No SMS inspections required. Tank condition will be monitored as part of the Corrosion Monitoring Program (CMP) Walkdowns.

o Stainless Steel - No SMS inspections required.

Tank condition will be monitored as part of the Corrosion Monitoring Program (CMP) Walkdowns.

1 l

I WMC-051 APPENDIX A, REV. 5 01/18/91 Wi4P 3 PREVEf4TlVE MAIN 1ENAt4CE REQUIREMEtif 5 BY EQUlPME!4T TYPE B. REQUIREMGils BY TYPE (Cont'd)

7. Elpina The basis for the preservation methods specified below is the prevention of water, dirt and/or corrosion by product accumulations in the interior of pipe and fabricated piping assemblies and the protection of machined surfaces. For piping materials stored outdoors, maintaining traceability of heat and/or identification numbers is of prime importance.
a. Pipe and fabricated piping assemblies located in Environmental Category 1, 11 & 111.
1) No SMS inspecticns required. The condition of pipe materials and installed piping systems will be monitored as part of the Corrosion Monitoring Program (CMP) Walkdowns.
2) Installed piping should have openings sealed / screened utilizing caps, plugs, tape, etc., and all unprotected carbon steel machined surfaces coated with an approved preservative.
3) Uninstalled straight pipe lengths, fittings and pre-fabricated pipe spools require no preservation activities and may be stored open or sealed.
b. Pipe and fabricatec piping assemblies located in Environ:c. ental Category IV.
1) No SMS inspections required, installed piping will be monitored as part of the Corrosion Monitoring Program (CMP) Walkdowns or as determined by Preservation Engineering. Stored piping spools and pipe materials shall be surveilled per CPS 919.
2) Pipe internals should be kept clean of standing water, dirt and corrosion by-products.
3) Pipe and fabricated pipe spools stored outdoors on dunnage shall be sloped to allow drainage. The lower end shall be open with the upper end capped or covered. Note: Small pipe assemblies and fittings may be exempt from these requir ement s if their configuration and storage position prevents the accumulation of water, dirt and/or corrosion by products. Preservation Engineering to address exceptions of the slope and cap requirements of the above on a case by-case basis.

WMC-051 APPENDIX A, REV. 5 01/18/91 15 -

WNP 3 PREVENTIVE MAlfJlillANCE REQUIREMEl415 BY EQUIPM[NT TYPE i

B. REQUIREME!4TS BY TYPE (Cont'd)

7. Eipino (Cont'd)
4) Class I pipe stored outdoors on racks shall have caps at both ends. Class 11 and G pipe stored outdoors on racks should be stored with caps at both ends.

Exceptions to these requirements will be handled on a case by case basis.

5) Installed piping shall have openings tealed utilizing caps, plugs, tape, etc. Stored and installed piping located outdoors shall have unprotected carbon steel machined surfaces coated with an approved preservative.
6) Stored and installed stainless steel piping located outdoors shall be inspected for algae growth.

WMC-051 APPEt10!X A REV. 5 01/18/91 _ _ _ - _ _ - _ - - _ _ __

WNP-3 PREVEf4TIVE MAINTENANCE REQUIREMENTS BY EQUlFMEN1 TYPE i

B. REQUIREMENTS BY TYPE (Cont'd)

8. [121t Exchanatti The basis for the heat exchanger preservation methods specified below is the prevention of corrosion attack on the interior and external surfaces of the vessels. for carbon steel, the elimination of internal condensation is the primary concern.
a. Prescrvation Requirements
1) All openings are to be sealed utilizing caps, plugs, tape, etc. Heat exchangers located in Environmental Category 1, should have the main access openings screened.
2) Unpainted external machined surfaces shall be coated with an approved preser/ative (Ref. CSP 9 04).
3) The addition of supplemental corrosion inhibitors may be utilized if specified by Preservation Engineering.
4) Stainless steel surf aces shall be maintained free of carbon contamination and organic growth.
5) Vendor or project installed coatings and linings shall be maintained.
6) Heat exchangers under a nitrogen purge shall be maintained in a leak tight, positive pressure condition.
b. Periodic Maintenance Requirements
1) Heat exchangers not on a nitrogen gas purge and located in environmental Category I should be ventilated for natural circulation. No SMS inspections are required. Vessels will be monitored as part of the Corrosion Monitoring Program (CMP) wal kdowns .
2) Heat exchange s not on a nitrogen gas purge and located in environmental Category 11 and 111 will have internal and external SMS inspections per-formed once every two years per CSP-9-02. These vessels will be stored in a " sealed" condition.
2) Heat exchangers under a nitrogen gas blanket will have SMS inspections as required to assure specified positive pressure is maintained.

WMC-051 APPENDIX A, REV. 5 01/18/91 _ _ - _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ -

WfiP 3 PREVEf1TIVE MAlfilEllAfiCE REQUIREMEfil5 BY EQUINiEf11 TYPE B. REQUIREMlf4TS BY TYPE (Cont'd)

8. }inat Excht nan (Cont'd)
c. Special Requirements
1) Condenser - Water box manway hatches shall be screened and left open for natural air circulation, fio SMS inspections required. Condenser internal and external conditions will be monitored as part of the Corrosion Monitoring Program (CMP) walkdowns.
2) Inspection and maintenance requirements for the Dry Cooling Tower Heat Exchangers are not addressed in this appendix. Separate specific preservation requirements will be issued by Preservation Engineering for these units.

WMC-0;l APPEl4 DIX A, REV. 5 01/18/91 . _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ - _ _ - _ __ _ -

)

l i

U!JP 3_ PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUlPMENT TYPE B. REQUIREMENTS BY; TYPE (Cont'd)

9. Switchaear. Motor Control Centers. Control panf ls and Miscellaneous Electrical Panels ,

The basic plan for the preservation of this electrical equipment is the maintenance of the equipment in a temperature '

stable. low to moderate humidity and low dust environment through the actions listed below. The maintenance of this environment will prevent the absorption of moisture by electrical- insulating materials, corrosion of electrical contact surfaces and accumulation of dust on and within the -

panel,

a. Preservation Requirements
1) Space- heaters contained within installed equipment shall be energized. _
2) A shroud and supplemental heat shall be provided for-  !

non operational equipment (excluding lighting and ,

power panels) installed in a Category.-111 or IV '

environment, unless space heaters are energized and ,

the enclosure is suitable for the environment in which it is located. *

3) Uninstalled equipment shall be placed in a Level B (or Level A) storage area. .In storage, space heater  !

onergization is not required.

4) Equipment not protected by a shroud shall have its  !

enclosure maintained dust tight. -All openings -

including raceway openings, shall be sealed to maintain a low dust environment.

5) If required, the shroud should provide.a waterproof /

dust resistant covering over the equipment. Where feasible, air space should be maintained between-the equipment and the shroud.

6)- Equipment located' in the control room and adjoining relay rooms are protected from temperature variation t and humidity by a temporary heating and air condit ~

ioning system. A positive inflow of filtered air is -

also maintained into this area to reduce dust i accumulation. -

7) Lighting and power panels do not require supplemental protection.- Note: There are no panels located in a Category IV environment.

WMC 051 APPENDIX A,-REV. 5 01/18/91  ?

%-a-,_-._-m.,

m _ . _ _ _ . - _ _ . - _ . - .

WNP 3 PREVENTIVE MAINTENANCE REQUIREMENTS BY E001FMENT TYPE B. REQUIREMENTS BY TYPE (Cont'd)

9. Switchaear. Maior Control. Centers. Control Panels and ,

tiinellaneous Electrical Panels (Cont'd)

b. Periodic Maintenance Requirements
1) Equipment (except lighting and power panels) located in Category 1 environment - ,

o -External . visual SMS inspections per CSP 9 02 shall be performed once every year on equipment located outside the control room and adjoining relay rooms.

o External- visual inspections per CSP 9 02 shall be performed every 24 months on equipment

-located inside the control room and adjoining relay rooms, o Internal inspections shall be performed-every two years, included with the internal visual inspection shall be an inspection of subassemblies for evidence of corrosion, loss of dust ' tight seal, and dust accumulation. Dust, if observed, shall be wiped or vacuumed from components and cabinets. Filters covering panel openings shall be cleaned or replaced if dirty, i

2) Equipment (except lighting and power panels) located

-in a Category 11 environment - External and internal visual SMS inspections-shall be performed as required for Category I except external inspections shall be performed on a quarterly basis.

3) Equipment (except lighting and power panels) located in a Category 111 and IV environment - External and- -

internal visual SMS inspections shall be performed as required fo* Category I except external inspections shall be performed quarterly and internal inspections

. performed yearly.

4)= t.ighting and power panels located in a Category 111 environment -

External and internal inspections per

. CSP 9 02 shall be performed once every two years.

Note: No periodic preservation inspections are required for panels located in Category I and !!

environments.

WMC-051 APPENDIX A REV. 5 01/18/91- .- - . - . - =.- _. ----- . _ _- _ - .- -_- - .

. Wf1P-3 FREV[NilVE MAlfill!1ANCE REQUIREMLfJls BY [QUlNiEfiT lyPE D. REQUIREMllil5 BY TYPE ( C o n '. ' d )

10. Qqldnpr 011 fi11td_lanken The basic premise for the preservation of outdoor oil filled tr ans formers is to preclude the affects of moisture / corrosion both internal and external to the transformers.
a. Preservation Requirements
1) Space heaters provided in control cabinets shall be energized.
2) Transformers without atmoscal expansion tanks shall be pressurized with nitrogen.
3) Because of minimal loading, testing the terminal connections of energized transformers by means of infrared scanning is not required during the preservation period.
4) Specific maintenanct requirements for energized and non energized oil filled transformers are set forth in Table 10.1.

l l

WMC-051 l APPENDIX A, REV. 5 01/18/91 - _ _ _ _ _ _ _ _ _ -

D l

TABLE 10.1 Page 1 ef 3 .

EQlf!FNENT TYPE STANDBY tm!T AUX * *

  • MAIN TRANSFORMERS AUX 901LER TA5E TRANSTORMERS ST1, Si2A, TRANSTORMER$

TRANSTORMERS t:41, UAZA, MAtttP LJATER Oit fitted 10!L fitttD T8ANSFORMERS TRAR5FORMER$ TRANSTORNErs GROUtoinG lGaat=0 tug INSPitfl0M TA$rS FRE0!KwCY T. 2. 3. & 4' 5729 A871 UA29 AG $ $4 '

921 824 TRAaTr0Rwrt$ TRAa580amft$-

1 Inspection & Maintenance 01-Year M of standby transfcreers per PPM 10.337.2. l Inspection & Maintenance 01-Year M of transformers per PPM 10.337.3T.

f f i t I I Inspection & Maintenance 01-Year M M M of transformers with l the enception of areas retsting to energized portions of the'trans-

{

formers. PPM 10.337.31 5

1 Inspection & Maintenance 01-Year M of transformer with the exception of areas relating to energized portions of the trans-former. PPM 10.300.30 t

Inspect enternet recoat 01-Year l M w esposed carbon steet a j machined surfaces and botting hardware with Tectyt 506 as required.

CSP-9-02.

I I I Inspect internals - 03-Month M M M M M M M At t coritrol cabinets, instrtsnentation and attached equipment. l t

CSP-9-02.

M a Maintenance Tts1ction O = Operations Function

  • = Energized Equirnent

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  • i TA"tE 1u.1 Page 3 of 3 i ,

EGJIPMENT TYPE

~

STANDgY UNIT Ar>x * *

  • MAIN IRANSfDRMERS AtJW BO!LER TRANSFORMERS MAKEtJP L:ATER Ott FILLED O!L FILLED TASC IRANSFORMERS ST1, SIZA, TRANSFORtaERS tJA1, UA24 TRAltSFORMEts ipteS70cmERS T R Ah STOR?'ER S GROJMOING GROL40thG INSPECT!ON TASKS F REOLENCY 1, 2, 3, & 4 ST2B Agit trats A4 & g4 g26 321 ~ tr austosistes' Teawspnewtes Inspect atmosest 01-Year. M i

M expansim tarA, pres-sure vaccta relief valve l

and breather'openirrgs to insure they are not obstructed.

PPM 10.337.2 l Inspect transformer 01-Tear M M for cil teaks and check status of space heaters in transformer enclosure.

Inspect transformer to 01-Year I ous connections, insure M connections are tight.

PPM 10.337.2 1 l f

t l

i l

l l

i 1

5 i

M = Maintenance Function O = Operations function

, * = Erwrgized Equipment i

l .

WNP 3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUlPMENT TYPE B. REQUIREMENTS BY TYPE (Cont'd)

11. Indoor Dev Tvoe Transformers (Power Center and Lighting and Power Panel Transformers)

The basis for the preservation of dry type transformers is preventing moisture / dust caused deterioration of the i transformer's insulation or cooling capability. This is I accomplished by maintaining the proper environment at their installed. or stored location and performing periodic maintenance. An environment with stable temperatures, moderate humidity levels and. low dust accumulations is perfect for preservation. The actions listed below will insure that these preservation requirements are meet.

Preservation Requirements a.

1): Space heaters, when provided by manufacturer, shall be made operational in both energized and non-energized transformers.

2) All- non-energized dry transformers in Category 111 &

IV storage areas without space heaters shall have supplemental heat added.

3) Dry transformers shall not be covered to the point where the cover interferes with free air circulation,
b. Periodic Maintenance Requirements Periodic maintenance requirements are shown in Table 11.1.

i.

-WMC-051 APPENDIX A, REV. 5 01/18/91 22 - 1

,> ...,-.-.ww.en , v.my..,,,. .._.,-.,.m.. . . , , ,.4-,--- ,.m,,.-.c ,-m ,-.y... , . , , wr-,

i i

TABLt'll.1 .

Page 1 of 1 j EQUIPMEfiT TYPE

. i k

NON-ENERGIZED NON-ENERGIZED DRY TRANSFORMERS TASK ENERGIZED DRY DRY TRANSFORMERS WITil SUPPLEMENTAL

! TASK DESCRIPTION -

FREQUENCY TRANSFORMERS WITH ' SPACE IIEATERS IIEAT (LIGHT BULBS) 4 Inspect external of transformer 03-Months M i for. deleterious conditions and j status of supplemental heat.

, CSP-9-02 f

l Inspect external of transformer 06-Months M M I

for deleterious conditions and status of space heaters.

CSP-9-02 2

! Inspect internal of transformer 01-Year M and perform maintenance per

! PPM 10.300.40.

! Inspect internal of transformer 02-Year M M l and perform maintenance in l accordance with the cleaning i portions only of PPM 10.300.40.

l l

l l

l l

M - Maintenance Function

. WNP-3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUlPMENT TYPE B. REQUIREMENTS BY TYPE (Cont'd)

12. Motors The basis for the preservation of motors is the prevention of corrosion on external machined and internal bearing surfaces and moisture depcadation of winding insulation. Prevention of moisture caused degradation is accomplished by heating and environmental rentrols as well as through maintenance of lubricant re tings on machine and bearing surfaces. This section does not apply to motors which are part of motor operated valves (see Section B.3).
a. Preservation Requirements
1) Space heaters contained within installed motors shall be energized.
2) A shroud and supplemental heat shall be provided if the motor is not' installed in a Category I environ-ment except as follows:

o Category 11 environments - A shroud and sup-piemental heat are not required if the motor is either rated 25 HP or less or has energized space heaters, o Category 111 and IV environments - A shroud and supplemental heat are not required for totally enclosed motors with built-in space heaters that are designed for outdoor service or for motors rated 3HP or less in a Category 111 environment. '

3) If required, the shroud shall provide a waterproof, dust resistant covering over the motor. Air space-shall be provided between the motor and the shroud.
4) If the motor is not installed, it shall be maintained in Level B (or Level A) storage. In storage, use of shrouds and supplemental heat is not required for motor protection. However, installed space heaters shall.be energized in motors rated above 480 volts.
5) Machined surfaces shall be coated with an approved preservative.
6) Lubricant coating on bearing surfaces shall be periodically replenished by shaft rotation, except for oil lubricated ' vertical motors which have their shafts lifted and small motors for which periodic inspections have been deleted as indicated in Table 12.1.

WMC-051 APPENDIX A, REV. 5 01/18/91

+

WNP-3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUIPMENT TYPE B. REQUIREMENTS Bf TYPE (Cont'd)

12. dotors (Cont'd)
7) Oil and/or grease sampling, if applicable, will be specified and schedules established by Preservation Engineering under separate instructions (Ref.

Appendix E).

8) Vertical motors with Kingsbury bearings may have shafts lifted. This eliminates metal to metal contact, allows oil to reach all bearing surfaces and eliminates the need for shaft rotation. Shafts are lifted so the bearing is poritioned midway between the bearing plates.
b. Periodic Requirements
1) Shaft rotation and external it. Dection shall be performed per CSP-9 02 and Table 12.1.
2) Insulation Resistance Testing per CSP-9-02 o Category 1, 11 and 111 environments - Testing to be performed on a sample basis. Each quarter, 2 motors in each category will be selected by Preservation Engineering for testing. Emphasis will be placed on testing high voltage motors.

O Category IV environment High Voltage Motors - Test each motor every 6 months.

- 480 Volt Motors - Test each motor every 12 months.

Less than 480 volt motors - Random testing only - to be covered as part of the CMP walkdowns.

WMC-051 APPENDIX A, REV. 5 01/18/91 _____

TABLE 12.1 .

PAGE I 0F 1 MOTOR ROTATION AND/0R EXTERNAL INSPECTION SCl!EDULE i.

l ENVIRONMENTAL CATEGORY / STORAGE LEVEL l I B

1) SAFETY RELATED MOTORS l a. 7.5 HP or less None 02 year

, b. Greater than 7.5 llP up to 25 HP 02 year 01 year

c. Greater than 25 IlP up to 100 HP 01 year 06 month
d. Greater than 100 llP up to 250 HP 06 month 06 month
e. Greater than 250 llP 03 month
  • 03 month
  • 1 I II & B III IV
2) NON-SAFETY.RELATED MOTORS

!. a. 3 IIP or less None None None 03 month j b. Greater than 3 HP up to 15 IIP None None 06 month 03 month

! c. Greater than 15 HP up to 25 llP 02 year 02 year 03 month

  • 03 month

. d. Greater than 25 HP up to 100 HP 01 year 01 year 03 month

  • 03 month
e. Greater than 100 llP up to 250 IIP 06 month 06 month 03 month 03 month
f. Greater than 250 llP 03 month
  • 03 nonth
  • 03 month 03 month Inspection frequency may be extended to 06 month based on specific environmental conditions at equipment locations, HP size and bearing type.

)

i

Wl4P 3 PREVE!4TIVE MAINTE!1Af1CE REQUIREMENTS BY EQUlPMElli TYPE B. REQUIREMENTS BY TYPE (Cont'd)

13. Cranes and Hoists The basis for the preservation of cranes and hoists is the prevention of moisture induced corrosion of bearings and machined surfaces and degradation of electrical insulation properties. The preservation requirements for equipment in this category generally follow standard practices for preserving large mechanical equipment. However, some of the maintenance activities will vary due to the operational status of the individual pieces of equipment,
a. Preservation Requirements
1) Equipnent that is functional and that is operated on a routine basis shall be maintained as in-service equipment.
2) Equipment that is in storage or lay up shall be maintained in accordance with the manufacturers' requirements.
3) Specific maintenance requirements for cranes and hoists, both operational and stored, are shown in Table 13.1, WMC-051 APPENDIX A, REV. 5 01/18/91 __ ________-_ - -_- -

TAOLE 13.1 Page 1 of 2 ,

MAINTENANCE REctJtREMENTS FOR CRANES AND motsis ELECTRIC ELECTRIC TUR8tNE ADMIN. Motsis NotSTS INSPECTION POLAR CRANE .StDC. CRANE fita CRANE INTAKE CRANE 8tDG. CRANE LOCATED IN LOCATED IN TREQUENCY 3-RC-CRN-1 3-TBS-CRN-1 3-R57-CRN-2 3-CL:-CRN-1 3-AS8-CRN-1 UNME ATED #REAS MEATED AsEAS MAINTENANCE PEOUIPEMENTS Check oil level in all gear 01-Year M M M M M bones for proper levet and fitt as needed. Check atI grensed components and add grease as directed by stper-vi s >r. Inspect att wire tubricated rope and redress as necessary.

Verify permanent instatted 03-Month M M M M M space heaters in cabinets and panels are operational.

Enternal inspection - Inspect 01-Year M M enterior surfaces for delete-rious conditions, repaint areas as required.

I Internalty. inspect att 01-Year M M cabinets, pancis for delete- f rious conditions, check operation of space heaters.

I Grease att Zerk fittings 03-Month M M on wheels and carriage assemblies.

Replace desiccant bags in 06-Month M main control cabinet.' -

Internally inspect att 06-Month M cabinets, penets for delete-rious conditions, check operation of space heaters.

M = Maintenance Function

  • = Operational EqJipment

1

, TABLE .3.1 Page 2 of 2 -

MAINTENANCE REQUIREMENTS FOR CRANES AuD N0!$TS m-ELECTRIC ELECTRIC TURBINE ADMIN. HCISTS NOtsis INSPECTION POLAR CRANE BLDG. CRAkE FHS CRANE INTAKE CRANE BLDG. CRANE LOCATED IN LOCATED IN FREQUENCY 3-RC-CRN-1' 3-TB8-CRN-1 3-RST-CRN-2 3-CW-CRN-1 3-AS8-CRN-1 UNNO TED AREAS NEATED AREAS I. MAINTENANCE REcutREMEKis

!' Monthly maintenance checks  !

01-Month M M M

. per iPM 10.400.10. l 1

l I

l I Arwusat maintenance checks 01-Tear M M l per PPM 10.400.10. 'l M I

i i

Check adjustment of aus. 03-Month M M M hoist solenoid brakes per PPM 10.334.1.

1 i

inspection, PM & testing per 01-Year M M M PPM 10.334.1.

l Sa mle oit in gear reducers 01-Year M M M for visual color and water analysis per PPM 10.400.10.

Inspect enternal and internet 01-Year M copponents for deleterious corditions. Fill gear boa to the top with manuf acturer

  • i reconnended ofIs and check }

tevet annua *ty.

j inspect externat and interna' 01-Year M i conponents for de!eterious corditions, check oit level in ocar box. l t l f

I f 4

4

, M = Maintenance i n tion

  • = Operational Equignent i

i e - -

i

i WNP 3 PREVENilVE MAINTENANCE REQUIREMENTS BY EQUIPMENT TYPE l B. REQUIREMENTS BY TYPE (Cont'd)
14. liVAC Water Chillers The basis for the preservation methods specified below is the prevention of moisture induced degradation on the chiller internals, external machined surfaces and electrical components.
a. Preservation Requirements
1) Chiller internals - Refrigerant side-and the cooler and condenser water side shall be protected by purging with dry nitrogen. Pressure to be maintained between 5 and 15 pounds.

Exterior machined surfaces shall be protected with an 2) approved preservative.

3) Electrical enclosures - Maintain a dust-tight cabinet closure (NEMA 12). For equipment located in a Category I and 11 environment, no other action is required. For ecuipment located in a Category 111 environment, Zerust VC2-1 vapor phase inhibitor shall be placed within the enclosure per CSP 9-02.

b.- Periodic Maintenance Requirements

1) Nitrogen purge to be verified on periodic basis as
  • part of the scheduled SMS purge inspection.
2) for equipment located in a Category I and 11~

environment - No other SMS inspections are required. ,

Water chillers will be monitored as part of the Corrosion Monitoring Program (CMP) Walkdowns.

3) for equipment located in a Category 111 environment -

o Annual external SMS inspections shall be performed per CSP-9-02.

o Annual internal inspection of electrical enclosures and Zerust replacement shall be performed per-CSP 9-02.

WMC-051 APPENDIX A, REV. 5 01/18/91 - . _ . _ _ . _ . - _ . . _ _ ..1.___...______ __-_._ _ __ _ ._ . _ - . -

WNP 3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUlPMENT TYPE 1

B.- REQUIREMENTS BY TYPE (Cont'd)

15. Evaporative Air Coolers. Air Handlina Units. Air Cleanina Units. Air Conditionina Vnits. Coolina Towers and f ans The basis for the preservation methods specified below is the prevention of corrosion attack on equipment, particularly internals and machined surfaces. (Note: The preservation of motors, electrical enclosures, pumps, valves, valve actuators, instruments and tanks contained within these HVAC units shall be
  • reserved in accordance with the requirements established fo (hat equipment type.)

a) Preservation Requirements 1)- A water tight enclosure shall be maintained for equipment located in a Category IV environment.

2) Stainless steel surfaces shall be maintained free of
  • contamination and organic growth.
3) Vendor installed exterior coatings shall be maintained. ,
4) Machined surfaces shall be coated with an approved preservative.
5) Lubricant coatings on bearing surfaces of fan shafts shall be replenished by periodic shaft rotation except for small fans for which periodic inspections have been deleted as indicated in Table 15.1.

b) Periodic Requirements

1) External inspection and internal inspection of HVAC equipment and shaft rotation of fans per CSP-9 02 and Table 15.1. (Note: Inspection frequency for HVAC equipment is established by the size of the fans contained within the equipment and the environmental category.in which it is located.)

l l

WMC-05)

APPENDIX A, REV. 5 01/18/91 --.-

TABLE 15.1 .

i PAGE I 0F 1 FAN ROTATION AND/OR EXTERNAL INSPECTION SCHEDULE l,i i

ENVIRONMENTAL CATEGORY / STORAGE LEVEL I B

1) SAFETY RELATED FANS
a. 7.5 HP or lers None 02 year Greater than 7.5 HP up to 25 IIP 02 year 01 year b.
c. Greater than 25 HP up to 100 tiP 01 year 06 month
d. Greater than 100 HF up to 250 HP 06 month 06 month
e. Greater than 250 HP 03 month
  • 03 month
  • I II & B III IV
2) NOF-SAFETY RELATED FANS None None None 03 month
a. 3 lip or less None None 06 nenth 03 month
b. Greater than 3 HP up to 15 HP 02 year 02 year 03 month
  • 03 month
c. Greater than 15 HP up to 25 IIP 01 year 01 year 03 month
  • 03 month
d. Greater than 25 HP up to 100 HP 06 month 06 month 03 month 03 month
e. Greater than 100 HP up to 250 HP 03 month
  • 03 month
  • 03 month 03 month
f. Greater than 250 HP
  • Inspection frequency nay be extended to 06 month based on specific en"- anmental conditions at equipment locations, HP size and bearing type.

WNP 3 PREVENTIVE MAINTEf1ANCE REQUIREMENTS BY EQUIPMENT TYPE B. REQUIREMENTS BY TYPE (Cont'd)

16. Mechanical Penetration Assembli_es
a. Except as described in "b" below, no preservation activity is required for mechanical penetrations.
b. The- mechanical penetrations exposed to the outside atmosphere (north and south steam tunnels) shall- be externally inspected annually for any deleterious conditions -including corrosion and temporary closure seal l failure. Unpiped penetrations shai' have the closure 1 removed and an internal inspection-performed once every two years. Penetrations which contain a-stainless steel bellows to carbon steel pipe connection-shall have thdt joint coated with an approved corrosion inhibitor per CSP 9-04. Note: The protective covers over the bellows

-may- remain off to facilitate the inspection of the bellows and the application of the inhibitor ~ .

WMC 051 APPENDIX A, REV 5 01/18/91 . _ _ - _ = . - _ - . . . .

WNP-3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUlPMENT TYPE B. REQUIREMENTS BY TYPE (Cont'd)  ;

1

17. Electrical Penetritions The basis for the electrical penetration preservation methods specified below is the prevention of moisture induced degradation. The environment in which electrical penetrations are located should be dry and the penetration internals shall  ;

be protected with a nitrogen purge.

a. Preservation Requirements j
1) Maintain installed penetrations in a Category I environment. (Stored penetration may be maintained in a Level B storage area.)
2) Maintain the penetration purge with dry nitrogen, minimum pressure 10 psig,-maximum pressure 40 psig.
b. Periodic Maintenance Requirements
1) Area Inspection The penetration area above El. 417 in thr RAB is susceptible to building closure i problers and water inleakage at the RAB/RB interface i area, inspect this area on a quarterly basis looking for- evidence of water inleakage and outside air exc ht.nge. If either concern is identified, the problem shall be documented anj corrective action initiated.
2) External Visual Inspection - The exterior of the ,

inboard and outboard penetrat' ion assemblies and terminal boxes shall be inspected per CSP 9 02. At this time the nitrogen purge shall be verified to be within acceptable limits. This inspection shall be performed on an annual basis.

t WMC-051

- APPENDIX A, REV 5

-01/18/91 -

29 -

1

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I O

  • W!1P 3 PP;.ENTlVE MAINTEt4ANCE REQUIREMENTS BY EQUIPMENT TYPE B. REQVlREMENTS BY TYPE (Cont'd)
18. Rebar. Embeds and Struch ral Steel The basis for rebar, embeds, and structural steel preservation methods specified below, is the prevention of corrosion attack on the carbon steel surfaces that are exposed to an outdoor environment. Elimination of the potential for free standing water and entrapment of moisture are the primary concerns.
a. Methods of Preservation
1) Ventilation of blockouts - Blockouts that will retain moisture must not be sealed, but covered whenever possible to reduce moisture infiltration.
2) Storage orientation - Whenever possible, structural shapes shall be stored so as not to allow free standing water.
3) Rebar dowels - Area of cor. crete interface with the dowel s shall be kept clean to avoid moisture r.nt ra pme n t . Dowels subject to corrosion degradation shall be coated at the concrete interface.
4) Maintenance of vendor or construction applied coatings.
5) A temporary preservative (Tectyl) may be used to protect carbon steel surfaces when the application of permanent coatings is not practical,
b. Periodic Maintenance Requirements
1) The condition of rebar, embeds and structural steel will be monitored as part of the Corrosion Monitoring Program (CMP) Walkdowns.
2) Stored rebar, embeds and structural steel shall be surveilled per CSP 919.

WMC-051 .

APPENDIX A, REV. 5 01/18/91 9

WNP 3 PREVENTIVE MAINTENANCE REQUIREMEN15 BY EQUIPMENT lYPE B. REQUIREMENTS BY TYPE (Cont'd)-

19. gear Drives / Gear Reducers The basis for the preservation methods specified below is the prevention of corrosion attack on all machined and gear surfaces,
a. Preservation Requirements
1) All openings are to be sealed utilizing caps, plugs, ,

tape etc. to prevent dust and/or water contamination.

2) Unpainted external machined surfaces shall be coated with an approved preservative (Ref. CSP 9 04).
3) Lubrication coating on bearing / gear surfaces shall be replenished by rotation unless specified otherwise by  :

Preservation Engineering.

4) The addition of supplemental corrosion inhibitors or .

the overfilling / immersion of machine surfaces with oil may be utilized if specified by Preservation Engineering.

b. Periodic Maintenance Requirements ,
1) External inspections and/or shaft rotations are to be performed per the requirements of CSP 9 02 and at the same frequency as established for motors (Ref. Table 12.1).
c. Special-Requirements

-1) Oil and/or grease _ sampling, if applicable, will be specified and schedules established by Preservation Engineering under separate instructions (Ref.

Appendix E).

2) 'Every 2 years, the dry cooling tower gear reducers shall have a random unit selected, oil drained and internal inspection performed-during CMP walkdowns or as directed by Preservation-Engineering.

WMC-051 APPENDlX A, REV. 5 01/18/91 -

m ._. - - . _ -. _ _ _ . _ _ _ - - - - - - ____ _.- - _____._.

O WNP 3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUIPMENT TYPE B. REQUIREMENTS BY TYPE (Cont'd)

20. Pine Suonorts Snubbers. Struts and Sprino Cans The basis for the pipe support preservation methods specified below is the prevention of corrosion attack on critical support components (springs, threaded adjustment reds, etc.),
a. No scheduled inspection or maintenance is required for snubbers, struts or spring cans which are located in Environmental Cateogory 1, 11 and 111.
b. Support components- stored or installed outdoors will not have a specific SMS inspection. However, a random

. inspection will be made during Corrosion Monitoring Program (CMP) walkdowns, with directions issued for any maintenance required.

Pipe support components (snubbers, struts & spring cans) located in an environmental Category IV shall be maintained without the use of plastic wraps. .

c) Special Requirements

1) Hydraulic snubbers supplied by Contract 3240 02 shall be maintained in accordance with vender's requirements.

WMC-051

-APPENDIX A, REV. 5 -

l 01/18/91 . _ -_ _ _..__ _ _ _ _ _ _ _ _ - _ . _ _ _ __,_ _ _- _

o l WNP 3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUIPMENT TYPE B. REQUIREMENTS BY TYPE (Cont'd) ,

1

21. Lgcally Mounted Electrical / Instrumentation Eauipment This category includes all locally mounted instruments and electrical components within the plant such as sump pump controls, limit switches, local controllers, level switches, thermostats and terminal boxes. For many of these itens, low replacement costs do not justi fy extensive preservation efforts. The basis for preserving this equipment is preventing moisture caused degradation by maintaining the interior of the enclosures dry and/or protecting interior components with a preservative or vapor phase inhibitor. Accordingly, the preservation efforts will be directed at equipment located outdoors or in areas exposed to the outdoor environment.

1

a. Preservation Requirements
1) for equipment located in Category I, 11 ar.d !!!

environments, no preservation actions are required.

2) For equipment located in Category IV, one or more of the following preservation actions should be considered.

o Protect electrical contact and terminals with CRC electra-shield, o Protect enclosure with a shroud.

o Perform a periodic check to assure Nema 4 & Nema IR enclosure conditions are being maintained, o Protect enclosure with energized space heaters or supplemental heat.

o Protect with a vapor phase inhibitor,

b. Periodic Maintenance Requirements
1) Equipment located in Category I, 11 and til environments - no periodic SMS inspections are required.
2) Equipment located in Category IV environment -

Perform an exterral and internal SMS inspection on a yearly basis. An internal SMS inspection of equipment protectea by a shroud is required every two years.

WMC 051 .

APPENDIX A, REV. 5 01/18/91- ,

v WNP-3 PREVENTIVE MAINTENANCE REQUIREMENTS BY EQUIPMENT TYPE B. REQUIREMENTS BY TYPE (Cont'd)

22. Preservation Reauirements for Non-Safety Related Statiqn Batteries The basis for preservation of these batteries is 'a maintain each battery cell in a fully charged ;onditi . -

'thout excessive specific gravity gradient. This w' "e

ivii :d by maintaining each cell at the proper /

performing a periodic equalization charge. .i extent of battery maintenance is to be mins * .- .t is assumed for undetected conditions tha. i. " t deterioration (see memo 3-PEM-90-012).

a. Preservation Requirements
1) Maintain float charge at 2.25 voitus<li '

's m individual cell voltage to be maintained alsve c. 3 volts per cell.

2) Perform a periodic equalization charge.
3) Maintain cell specific gravity gradient at less than

.01 from top to bottom of cell. At completion of the equalization charge, gradient from top to bottom of cell should be .002 or .ess.

4) Maintain cell electrolyte levels between low and high marks.
5) Maintain cell connections torqued and free of corrosion.
6) Maintain cell negative plates free of excessive sulfating (glitter).
b. Periodic Maintenance Requirements
1) Twice weekly operational checks / visual inspections, o Veri fy charger operating with correct output voltage (float charge at 2.25 volts / cell).

o Visually inspect battery room and battery cells for evidence of physical damage / deterioration, o Verify ventilation fan operating.

WMC-051 APPENDIX A, REV. 5 01/18/91 ._. - _ _. _ _ . _ _ - - . _ - _ _ _ ___. .

?

t WNP-3 PREVENTIVE Malt 4TENANCE REQUIPEMENTS BY EQUIPMENT TYPE B. REQUIREMENTS BY TYPE (Cont'd)

22. Preservation Reauirements For N'n-Safety Related Station Batteries (Cont'd)
2) Monthly inspection.

o Perform per PPM 10.300.16. (No battery cell measurements are required.)

3) Quarterly inspection, o Perform per PPM 10.300.21. (Specific gravity and voltage measurements taken on pilot cells only.)
4) Annual inspection. (Full set of specific gravity and voltage measurements taken),

o Perform an annual inspection per PPM 10.300.17,

5) Annual and for cause equalization charge.

o Perform an annual equalization charge per PPM 10.300.22. An equalization charge shall also be performed after any discharge of a battery. To avoid repeated equalization charges, the annual equalization charge should be scheduled for after the 230KV system outage,

c. Special Requirements
1) Any battery call with copper contamination that can not maintain e cell voltage above 2.13 volts is to be isolated from ather cells of the battery. When this is done, float voltage shall be adjusted so the balance of the cells maintain a float voltage of 2.25 volts / cell (Reference Exide Corp. Letter GI3-89-024).

UNC-051 APPEND X A, REV. 5 01/18/91 . _ - _ _ - -

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