ML20066B929
| ML20066B929 | |
| Person / Time | |
|---|---|
| Site: | Byron, 05000000 |
| Issue date: | 11/04/1982 |
| From: | COMMONWEALTH EDISON CO. |
| To: | |
| Shared Package | |
| ML20066B920 | List: |
| References | |
| PROC-821104, NUDOCS 8211090255 | |
| Download: ML20066B929 (19) | |
Text
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Hevision 1 l
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BYRON NUCLEAR POWER STATION UNIT I INSERVICE TESTING i
(ISI)
Program Plan for. Pumps 3
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P "S2iiO90255 821104
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PDR ADOCK 0S000454 E
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i Table of Contents Page 1.0 Inservice Testing Program for Pumps 1.1 Program Description 3
1.2 Tables for Inservice Pump Testing Program 4
1.3 Relief Requests and Allowable Ranges of Test Quantities 10 "P
1.4 Notes for Inservice Inspection of Pumps 18 t
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1.1 Byron Unit 1 Pump Inservice Inspection Program Plan.
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The Pump Inservice-inpsection (ISI) program for Byron Nuclear Power Plant Unit 1, is implemented in accordance with the require-ments of Subsection IWP of Section XI of the ASME Boller and Pressure Vessel Code, 1980 edition, through the winter of 1980 addenda.
Where these rules are determined to be impractical,-
specific relief is requested and is referenced in the tables.
Pumps which are identified in the Byron Station FSAR as Category 1 pumps, which are active and have an emergency power source, are the pumps subject to PSI /ISI testing. Active pumps are defined as those pumps which are called on to perform a safety f unction as well as to accomplish and maintain a safe reactor shutdown.
The only exception to this is diesel driven auxiliary feedwater pump, (lAF01PB) which is included in the program although it is not supplied by an emergency power source.
Lubrication level will be observed through sight glasses for the pumps listed in the PSI /ISI programs, except for the Diesel Oil Transfer pumps (lD00lPA,1DOO1PB), the Residual Ifeat Removal pumps (1RH01PA,1RH01PB), and the Containment Spray pumps (ICS01PA, ICS01PB),
which are lubricated by the pumped fluid.
Also the speed will not be measured for pumps operating at nominal motor nameplate speed for constant speed drives, but it will be measured through tachometers for variable speed drives, (i.e., Diesel) such as Essential Service Water Makeup pumps (OSX02PA, OSX02PB).
Reference values shall be determined from the results of a preservice test which may be run during preoperational testing or from the results of the first inservice test run during t
power operation.
Reference values shall be at points of oper-ation readily duplicated during subsequent inservice testing.
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O SECTION 1.2 TABLES FOR INSERVICE PUMP TESTING PROGRAM BYRON UNIT 1 O
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1 The inservice test quantities shown below will be measured or observed in accordance with IWP-3100 of ASME Section XI '80 edition, winter '80 addenda:
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1.
Speed (if variable speed) 2.
Inlet pressure 3.
Differential pressure 4.
Flow rate 5.
Vibration 6.
Bearing temperature 7.
Lubrication level Wherever these quantities will not be measured or observed, the relief request number pertaining to the item is given on the program summary tables. More Pump Relief Requests may be necessary for the Pump Inservice Inspection Program and will be identified during the performance of the Preservice Inspections.
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The following information is included in the summary tables:
r-The first four columns include the unique Byron Station Equipment Piece a
Number, the Code Class, and the P & ID on which the pumps are located, including the X-Y coordinates which specifically locate the pumps on the P & ID.
Speed:
Speed will be measured by a tachometer for variable speed drives.
Inlet pressure:
Inlet pressure will be measured via permanently installed gauges or through readings taken from pressure taps provided for using temporarily installed calibrated gauges.
Differential pressure: Differential pressures will be measured using calibrated differential pressure gauges, or by recording the difference between calibrated inlet and outlet pressure gauges.
Flow rate: Flow rates will be measured using permanently installed instru-mentation.
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Vibration: Vibration measurement shall be made using hand held instruments.
Bearing Temperature:
Bearing temperature will be measured by permanently installed devices where such devices are present. Portable measurement devices will be used where temperature wells are provided.
Per IWP-3300, bearing temperatures are required only once per year.
Byron Station takes the data for bearing temperatures once per year during the summer test.
Test Interval: An inservice test shall be run on each pump nominally every 3 months during normal plant operation, in accordance with IWP-3400.
Lubrication Level: Lubrication level will be observed through sight glasses for the pumps listed in the PSI /ISI programs.
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INSERVICE TESTI G
PR0 GRAM PLAN UNIT-1 CLASS 1, 2, & 3 PUMP BYRON NUCLEAR POWER STATION REVISION - DATE PAGE 1
4-30-82 1 of 3 TEST PARAMETERS A
LUBRI-S
- INLET DIFF FLOW BEARING TEST CATION PUMP NUMBER PUMP NAME S
P & ID SPEED PRES PRES RATE VIBRATION TEMP INTERVAL LEVEL REMARKS OAB03P Boric acid transfer 3
M-65-5 No Yes Yes Yes PR-1 PR-2 Quarterly Yes Note 1 pump 1AB03P Boric acid transfer 3
M-65-5 No Yes Yes Yes PR-1 PR-2 Quarterly Yes Note 1 pump 1AF0lPA Auxiliary feedwater 2
M-37 No Yes Yes Yes PR-1 Yes Quarterly Yes pump 1AF0lPB Auxiliary feedwater 2
M-37 Yes Yes Yes Yes PR-1 Yes Quarterly Yes pump (Diesel)
OCC0lP Component cooling 3
M-66-3 No Yes Yes Yes PR-1 PR-2 Quarterly Yes Note 1 Pump ICC0lPA Component cooling 3
M-66-3 No Yes Yes Yes PR-1 PR-2 Quarterly Yes Note 1 pump ICC0lPB Component cooling 3
M-66-3 No Yes Yes Yes PR-1 PR-2 Quarterly Yes Note 1 pump ICS0lPA Containment spray 2
M-46 No Yes Yes Yes PR-1 PR-2 Quarterly No Pump ICS0lPB Containment spray 2
M-46 No Yes Yes Yes PR-1 PR-2 Quarterly No pump 1CV0lPA Centrifugal charging 2
M-64-3 No Yes Yes Yes PR-1 Yes Quarterly Yes Pump 1CV0lPB Centrifugal charging 2
M-64-3 No Yes Yes Yes PR-1 Yes Quarterly Yes pump
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) UNIT-1
'.l INSERVICE TEST 1 NG PROGRAM PLAN CLASS 1, 2, & 3 PUMP BYRON NUCLEAR POWER STATION REVISION - DATE PAGE 1
4-30-82 2 of 3 TEST PARAMETERS A
LUBRI-S
- INLET DIFF FLOW BEARING TEST CATION PUMP NUMBER PUMP NAME S
P & ID SPEED PRES PRES RATE VIBRATION TEMP INTERVAL LEVEL REMARKS 1RH0lPA Residual heat 2
M-62 No Yes Yes Yes PR-1 PR-2 Quarterly No removal pump 1RH0lPB Residual heat 2
M-62 No Yes Yes Yes PR-1 PR-2 Quarterly No removal pump ISI0lPA Safety injection 2
M-61-1 No Yes Yes Yes PR-1 Yes Quarterly Yes pump ISI0lPB Safety injection 2
M-61-1 No Yes Yes Yes PR-1 Yes Quarterly Yes Pump ISX01PA Essential service 3
M-42-1 No Yes Yes Yes PR-1 Yes Quarterly Yes water pump ISX01PB Essential service 3
M-42-1 No Yes Yes Yes PR-1 Yes Quarterly Yes water pump OSX02PA Essential service 3
M-4 2-6 Yes PR-3 PR-3 Yes PR-1 PR-2 Quarterly Yes water makeup pump (Diesel)
OSX02PB Essential service 3
M-4 2-6 Yes PR-3 PR-3 Yes PR-1 PR-2 Quarterly Yes water makeup pump (Diesel) 1D001PA Diesel oil transfer 3
M-5 0-1 No Yes Yes Yes PR-1 PR-2 Quarterly No Pump ID001PB Diesel oil transfer 3
M-50-1 No Yes Yes Yes PR-1 PR-2 Quarterly No pump 1D001PC Diesel oil transfer 3
M-50-1 No Yes Yes Yes PR-1 PR-2 Quarterly No pump 1D00lPD Diesel oil transfer 3
M-5 0-1 No Yes Yes Yes PR-1 PR-2 Quarterly No pump INSERVICE TESa NG P'R O G R A M PLAN UNIT-1 CLASS 1, 2, & 3 PUMP BYRON NUCLEAR POWER STATION REVISION - DATE PAGE 1
4-30-82 3 of 3 C
TEST PARAMETERS A
LUBRI-S
- IhLET DIFF FLOW BEARING TEST CATION PUMP NUMBER PUMP NAME S
P & ID SPEED PdES PRES RATE VIBRATION TEMP INTERVAL LEVEL REMARKS OWO0lPA Control room 3
M-118-1 No Yes Yes Yes PR-1 PR-2 Quarterly Yes chilled water OW001PB Control room 3
M-118-1 No Yes Yes Yes PR-1 PR-2 Quarterly Yes chilled water s
l NOTE:
- Measure before pump startup and during test.
Bearing temperatures are exempted from quarterly test interval per IWP-3300, bearing temperatures are required only once per year.
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r SECTION 1.3 RELIEF REQUESTS FOR INSERVICE PUMP TESTING PROGRAM P
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j RELIEF REQUEST NO.LPR-1 4
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PUMP NINBER:
All' pumps in program plan.
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2.
NUMBER OF ITEMS:
25 pumps.-
s 3.
ASME. CODE CIASS:
2&3 4.
'ASME CODE, SECTION XI:
(Detection of mechanical change per IWP-1500 and table IWP-3100-2).
TherequirementsforwhichreliefisbeIng' request'edarethe measurement and allowable ranges of vibrlation in mils dis-placement, g
- 5., BASIS FOR RELIEF:
Pump vibration is required to be measured to detect any changes in the mechanical characteristic of a pump.
This is to detect developing problems so repairs can be t
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initiated prior to a pump becoming inoperable (i.e., unahic to perform its function).
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6.
ALTERNATE TESTING: The ASME Code' minimum standards require measure-
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ment of the. vibration amplitude in mils, (displacement).
Byron Station proposes an alternate program of measuring vibration velocity (inches per second) which is more-com-prehensive than that required by Section XI.
This technique 3
is.an industry-accepted method which is mu'ch more meaningful and sensitive to small changes that are indicative of_devel-
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oping mechanical problems. These velocity measurements detect not only high' amplitude vibrations that indicate a major mechanical problem but also the equally harmfu1= low amplitude high frequency due to-misalignment, irgbalance, or bearingwearthatusuallygoundetectedbysimpIedisplace-4 f
ments.
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The " General Machinery Vibration Severity Chart" published p-s.,
by IRD Mechanalysis, Inc., (see attached) will be used as an alternate to the " Allowable Ranges of Test Quantities" in ASME table IWP-3100-2 for vibration. The " Alert Range" willbe.314in/sec((f<(628in/sec.
The required action range will be V}>.628 in/sec.
Evaluation of data, to assign equipment to the alert or action ranges, will be done within 96 hours0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br /> (per IWP-3220 of Section XI).
This will be done using industry accepted vibration analysis equipment, such as a full spectrum analyzer.
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1 100,000 Vibeation Velocity _In/Sec.-Peak P.eprinted with permission of IRD Mechanalysis, Inc.
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7.
JUSTIFICATION: Measurements of vibration in mils displacement are not sensitive to small chrnges that are indicative of developing mechanical problems. Therefore, the proposed alternate of men.euring vibration amplitude provides added assurance of the continued operability of the pumps.
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s RELIEF REQUEST NO. PR-2 e
1.
PUMP NUMBER:
0AB03P, IAB03P, OCC01P, ICC01PA, ICC01PB, ICS01PA, ICS01PH, 1RH01PA, 1RH01PB, OSX02PA, OSX02PB, ID001PA, ID00lPn, ID00lPC, ID001PD, OWOO1PA, OWOO1PB 2.
NUMBER OF ITEMS:
17 pumps 3.
ASME CODE CLASS:
2&3 4.
ASME CODE, SECTION XI REQUIREMENTS:
(Detection of mechanical change per IWP-1500)
Pump bearing temperatures are required to be measured to detect any changes in the mechanical character-istics of the pumps' bearings.
IWP-3500(b) requires three successive readings taken at ten minute intervals that do not vary more than 3%.
5.
BASIS FOR RELIEF:
/*i a.
These pumps' bearings are' not provided with permanent temperature detectors or thermal wells.
Therefore, gathering data on bearing temperature is impractical.
b.
The only temperature measurements possible are from the bearing housing. To detect high bearing temperature at the bearing housing requires that the bearings in question be seriously degraded.
c.
Measurement of housing temperature on many of these pumps does not provide information on bearing condition or degca-dation.
For example, the bearings on the Essential Service Water pumps (OSX02PA, OSX02PB) and Diesel Oil Transfer Pumps (1D001PA, ID001PB, ID001PC, 1D001PD) are cooled by the fluid pumped.
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Therefore, any heat generated by degraded bearings tu
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carried away by the cooling fluid and would not be directly measured ' at the bearing housing.
6.
ALTERNATE TESTING: No direct alternate test is proposed for bearing temperatures. However, measurement of bydraulic parameters and vibration readings do provide a more positive method of monitoring pump condition and bearing degradation.
7.
JUSTIFICATION:
By measuring pump hydraulic parameters and vibration velocity (as described in PR-1), pump operability and trending of mechanical degradation is assured. Also, since these parameters (i.e., Hydraulic parameters and vibration) are measured quarterly, the pump mechanical condition will be more accurately determined than would be possible by measuring bearing temperature on a yearly basis.
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RELIEF REQUEST NO. PR-3 1.
PUMP NUMBER:
OSX02PA, OSX02PB 2.
NUMBER OF ITEMS: 2 pumps 3.
ASME CODE CLASS:
3 4.
ASME CODE, SECTION XI REQUIREMENT:
(IWP-3100 measurement of inlet and dif ferential pressure per table IWP-3100-1).
5.
BASIS FOR RELIEF:
It is impractical to measure the inlet pressures of these pumps.
Instrumentation for directly measuring the inlet pressure for these pumps does not exist. These pumps take a suction from the river.
6.
ALTERNATE TESTING: These pumps will be evaluated using pump discharge pressure.
Additionally, delta level across the traveling screens will be measured to assure adequate suction level.
There is dif ferential level instrumentation provided, which j,g indicates the difference in level between the river height and the reservoir height in inches.
This delta level will be recorded in lieu of inlet pressure for the pumps.
7.
JUSTIFICATION:
The level of plant safety is not affected by not tak-ing suction pressure data on vertical well type pumps.
These pumps cannot suffer from cavitation as long as their impellers are submersed in the pumped fluid reservoir.
l Recording the delta level across the traveling screens ensures that the pumps will be submersed in the river since no other possible obstructions between the river and pump bays exist.
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,f' SECTION 1.4 NOTES FOR THE INSERVICE PUMP TESTING PROGRAM A
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NOTE 1 p
These pumps have " pump" bearings and "shaf t" bearings. The " pump" bearings are lubricated by the fluid which is being pumped, hence, they do not have any indication for lubrication level. Although, the "shaf t" bearings are lubricated by oil and will be checked for lubrication level.
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