ML20079E198
| ML20079E198 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 12/31/1983 |
| From: | OMAHA PUBLIC POWER DISTRICT |
| To: | |
| Shared Package | |
| ML20079E196 | List: |
| References | |
| PROC-831231, NUDOCS 8401170159 | |
| Download: ML20079E198 (4) | |
Text
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APPENDIX 2A Inservice Testing of Pumps Discussion: The pumps that require inservice tests for operational readi-ness under the ASME B & PV Code,Section XI, Subsection IWP are listed below. The inservice test parameters and test frequencies are tabulated for each pump. The requested test exceptions and basis for each exception are given for the applicable parameters.
General : The pumps listed are directly coupled to induction motor drivers; therefore, the rotation speed need not be measured as prescribed in Subarticle IWP-4400.
Operating modes, as designated in this appendix, are as follows: Mode 1 - Power Operation, Mode 2 - Hot Standby, Mode 3 - Hot Shutdown, Mode 4 - Cold Shutdown, Mode 5 - Refueling Shutdown.
Low Pressure Safety Injection Pumps SI-1A, B Class 2 P&ID:
CE-E-23866-210-130, Sheet 1 of 2 (G4)
Function: The LPSI pumps are available for safety injection of borated water into the reactor coolant system following a LOCA and are used to remove residual heat for cold shutdowns.
Containment Spray Pumps SI-3A, B, C Class 2 P&ID:
CE-E-23866-210-130, Sheet 1 of 2 (G3, G2, G2)
Function: The CS pumps are available to spray borated water into con-tainment following a LOCA.
High Pressure Safety Injection Pumps SI-2A, B, C Class 2 P&ID:
CE-E-23866-210-130, Sheet 1 of 2 (G6, G7, G7)
Function: The HPSI pumps are available for cafety injection of borated water into the reactor coolant system following a LOCA and are used to maintain the required water level in the safety injection tanks.
Operating Modes Subarticle Required for Test Parameter Frequency Exceptions Testing Inlet Pressure Quarterly IWP-3100 1, 2, 3, 4 or 5 Differential Pressure Quarterly IWP-3100 1, 2, 3, 4 or 5
. Vibration Amplitude Quarterly 1, 2, 3, 4 or 5 Lubrication Level
. Quarterly 1, 2, 3, 4 or 5 Bearing Temperature Yearly 1, 2, 3, 4 or 5 IWP-3100 l
Flow Rate ISI PP Rev. 1 (Dec. '83) 19 8401170159 840110 PDR ADOCK 05000285 G
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Exceptions:
IWP-3100 Flow measurment Basis: Original plant design did not include flow measure-meat for these pumps. These pumps are in fixed resistance sys tems. The inservice testing of differential pressure across these pumps under a minimum recirculation flow condi-tion (and thus near shutoff head) is deemed adequate to allow determination of pump functionality and or degradation.
IWP-3100 Inlet and differential pressure measurement Basis:
Inlet pressure for these tests will be detemined by measuring the static head tank level.
Charging Pumps CH-1A, B, C Class 2 PIID: CE-E-23866-210-120, Sheet 1 of 2 (E6, E4, E3)
Function: The charging pumps are provided to return the purification flow to the reactor coolant system during plant steady state operations.
Operating Mode Test Parameter Frequency Required for Testing Inlet Pressure Quarterly 1, 2 or 3 Differential Pressure Quarterly 1, 2 or 3 Flow Rate Quarterly 1, 2 or 3 Vibration Amplitude Quarterly 1, 2 or 3 Lubricant Level and Pressure Quarterly 1, 2 or 3 Bearing Temperature Yearly 1, 2 or 3 Component Cooling Pumps AC-3A, B, C Class 3 PIID: GHDR-11405-M-10 (D2, C2, B2)
Function: The component cooling pumps supply cooling water to equipment in the containment and auxiliary building.
Operating Modes Subarticle Required for Test Parameter Frequency Exceptions Testing IWP-3100 Inlet Pressure IWP-3100 Differertial Pressure IWP-3100 Flow Rate -
Vibration Amplitude Quarterly 1, 2, 3, 4 or 5 Lubricant Level or IWP-3100 Pressure 1, 2, 3, 4 or 5 Bearing Temperature Yearly ISI PP Rev.1 (Dec. '83) 20
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Exceptions IWP-3100
' Inlet and differential pressure measurement Basis:
System design does not include instrumentation for measuring these parameters. Discharge pressure will be measured on a quarterly schedule to help determine possible pump degradation.
Establishment of a reference value for flow rate Basis: There are many conponents or subsystems on the com-ponent cooling water system with several possible piping con-figurations.
Some of the components are critical elements to which the flow rate cannot arbitrarily be varied for the sake of running a pump test. Consequently, establishing a reference flow rate for a pump test on a periodic basis is impractical.
Lubricant level or pressure observation Basis: The punp bearings are cartridge type that have been re-packed with the proper amount of grease and under normal conditions require no further attention for the life of the bearings.
Reference:
Ingersoll Rand Instruction Manual Boric Acid Pumps CH-4 A, B Class 3 PIID: CE-E-23866-210-121 Function: The boric acid pumps supply blended boric acid to the charg-ing pump header and provide nakeup to the SIRW and volume control tanks.
Subarticle Operating Modes Test Parameter Frequency Exceptions for Testing IWP_3100 1, 2, 3, 4 or 5 Inlet Pressure Quarterly Differential Pressure Quarterly IWP-3100 1, 2, 3, 4 or 5 1, 2, 3, 4 or 5 Vibration Amplitude Quarterly 1, 2, 3, 4 or 5 Lubricant Level Quarterly 1, 2, 3, 4 or 5 Bearing Temperature Yearly IWP-3100 l
Flow Rate Exceptions:
IWP-3100 Flow measurenent Basis: Original plant design did not include flow measure-ment for these pumps. These pumps are in fixed resistance systems. The inservice testing of differential pressure across these pumps under a minimum recirculation flow condi-tion (and thus near shutoff head) is deemed adequate to allow determination of pump functionality and or degradation.
ISI PP Rev.1 (Dec.1) 21
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IWP-3100 Inlet and differential pressare measurenent Basis:
Inlet pressure will be determined by measuring the static head tank level.
Raw Water Pumps AC-10A, B, C, D Class 3 R&ID: GHDR-11405-M-100 Function: The raw water pumps provide a cooling medium for the compo-nent cooling water system.
Operating Modes Subarticle Required for Test Parameter Frequency Exceptions Testing Inlet Pressure IWP-3100 Differential Pressure IWP-3100 Flow Rate IWP-3100 1,2,3,4 or 5 Vibration Amplitude Quarterly IWP-3100 Bearing Temperature Discharge Pressure vs. Motor Amperage Quarterly IWP-3100 1,2,3,4 or 5 Exceptions:
IWP-3100 Inlet pressure measurement Basis: System design does not permit direct measurement of inlet pressure. Varying river level and unknown accumulations of sand near the pump suction bell make it impossible to determine the inlet pressure.
Differential pressure measurement Basis:
Because of the inability to measure inlet pressure, differential pressure measurement is not possible.
Flow rate measurement Basis: The system design does not provide an accurate in-dication of flow rate due to fouling by untreated river water.
Bearing temperature measurement Basis: All bearings are inaccessible for temperature
'measu reme nt. All are submerged in river water.
Discharge pressure vs. motor amperage Basis: To be performed in lieu of a differential pressure measurement. An acceptable motor amperage value will be deter-mined over a discharge pressure range of 26 through 40 psig.
Auxiliary Feedwater Pumps FW-6, FW-10 Class 3 R&ID: GHDR-11405-M-253 Function: The auxiliary feedwater pumps provide water to the steam generators when normal condensate feedwater flow is unavailable.
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