ML20072T679
| ML20072T679 | |
| Person / Time | |
|---|---|
| Site: | McGuire  |
| Issue date: | 04/08/1991 |
| From: | DUKE POWER CO. |
| To: | |
| Shared Package | |
| ML20072T678 | List: |
| References | |
| PROC-910408, NUDOCS 9104180220 | |
| Download: ML20072T679 (31) | |
Text
,
1 l
l UNIT 1 TABLE OF CONTENTS Page Section Number 1.
Pump Inservice Testing Program 1.1 Introduction 1.2 Data Sheets 1.3 General Relief Requests 1,4 Specific Relief Requests II.
Valve Inservice Testing Program 11.1 Introduction 11.2 Table of Abbreviations 11.3 Definitions of Testing Requirements and Alternatives 11.4 System Data Sheets:
Steam Generator Blowdown Recycle (BB)...............
1 Auxiliary feedwater (CA)............................
2 Feedwater (CF)....................................
3 Olesel Generator Engine fuel Oil (FD)..............,
4 Refueling Water (FW)................................
5 Airlock (IA).........................................
6 Component Cooling (KC)..............................
7 Diesel Generator Cooling Water (KD)..................
8 Radiation Monitoring (MI)...........................
9 Boron Recycle (NB)..................................
10 Reactor Coolant (NC1................................
11 Residual Heat Removal (ND)..........................
12 Ice Condensor Refrigeration (NF)....................
13 Safety Injection (NI)...............................
14-15 Nuclear Sampling (NM)...............................
16 Containment Spray (NS)..............................
17 Chemical and Volume Control (NV)....................
1B Fire Protection (RF)................................
19 Nuclear Service Water (RN)..........................
20-21 Containment Ventilation Cooling Water (RV)..........
22 Main Steam Supply to Auxilary Equipment / Turbine Exhaust (SA)...................................
23 Main Steam (SM).....................................
24 Main Steam Vent to Atmosphere (SV)..................
25 Breathing Air (VB)..................................
26 Control Area Ventilation (VC)........................
27 Annulus Ventilation (VE)............................
28 Diesel Generator Starting Air (VG)..................
29 Instrument Air (VI).................................
30 Containment Purge Ventilation (VP)..................
31 Containment Air Release and Addition (VQ)...........
32 Station Air (VS)....................................
33 Revision 16 9104180220 910408 PDR ADOCK 05000369 p
UNIT 1 Page
_Section Number Containment Air Return Exchange and Hydrogen Skimmer (VX)..........................
34 Equipment Decontamination (WE)......................
35 Liquid Waste Recycle (WL)...........................
36 Diesel Generator Room Sump Pump (WN)................
37 Control Area Chilled Water (YC).....................
38 Makeup Demineralized Water (YM).....................
39 11.5 General Relief Requests 11.6 Specific Relief Requests 11.7 Cold Shutdown Justifications 2-Revision 16
McGUIRE - UNIT 1 TABLE OF ABBREVIATIONS CLASSIFICATION Duke System ANS Valve Designed for Safety Class Code Design Criteria Seismic Loading Class A
Class 1, ASME Section III, 1971 Yes 1
B Class 2, ASME Section III, 1971 Yes 2
C Class 3, ASME Section III, 1971 Yes 3
0 Class 2, ASME Section III, 1971 No 2
E ANSI B31.1.0 (1967)
No ims F
ANSI B31.1.0 (1967)
Yes NNS G
ANSI B31.1.0 (1967)
No H
Duke Power Company Specification No LEGEND LT
- Leak Test MT0
- Movement Test Open MTC
- Movement Test Closed MTO,C - Movement Test Open and Closed Q
- Quarterly CS
- Cold Shutdown RF
- Refueling Outage ST
- Stroke Time (cycle and time)
- Setpoint PC
- Procedure Check CIV
- Containment Isolation Valve PIV
- Pressure Isolation Valve RR
- Relief Request TS
- Technical Specification CL
- Class CAT
- Category FS'
- Fail Safe Revision 16
McGUIRE - UNIT 1 Quarterly (Q)
Testing will be performed at least once per three (3) months.
Refueling Outate (RF)
Testing will be performed when the unit is shut down for refueling.
Safety valves will be tested periodically per the testing schedule defined in ASME Subsection IWV-3510.
Testing may be done while in No Mode as well as Modes 3, 4, 5, and 6.
Refueling Outage (RF*)
Valve will normally be tested during refueling outages, not to exceed 24 months per Appendix J to 10CFR50.
Refueling Outage (RF#)
Valve will normally be tested on a routine basis via a sample valve disassembly program (1 valve from a group of identical valves under similar system conditions).
Failure of one valve of the group during a refueling outage will result in all remaining valves of the group being tested during that outage.
Setpoint (SP)
Valve will be tested to verify that it will relieve pressure at its specified setpoint.
Testing will be performed per the requirements of IW-3510.
Fail Safe (FS)
Valve will be tested to-verify it will reposition to its design safe position upon 16 loss of control air per IWV-3415.
I L
Revision 16 l
McGUlkf. - UNIT 1 RELIEF / JUSTIFICATION:
RR-CA1 VALVE:
ICA-165, ICA-166 FLOW DIAGRAM:
MC-1592 1.1 CATEGORY:
C CLASS:
C FUNCTION:
Prevents backflow from Aux. Feedwater System to Nuclear Service Water System TEST REQUIREMENT:
Full stroke exercise quarterly BASIS:
Neither full nor partial flow can be put through these valves without contaminating the Auxiliary Feedwater 16 System with raw water.
No means exist for alternate testing techniques using air or any other medium.
ALTERNATE TESTING:
At least one of these two valves will be disassembled and full stroked during each refueling outage, and both valves will have been disassembled and full stroked after two consecutive refueling outages.
Failure of one valve to properly full stroke during a refueling outage will result in the remaining valves being disassembled and full stroked during that outage.
Revision 16
Mc0UIRE - UNIT 1 REllEF/ JUSTIFICATION:
RR-IA1 VALVE:
11A-5360, 11A-5370, 11A-5380, 11A-5390 FLOW OIAGRAM:
MC-1499-IA1 CATEGORY:
AC CLAS$:
B FUNCTION:
Check containment pressure on reactos building side of airlock and relieve to containment to prevent overpressurization of airlock.
TEST REQUIREMENT:
Verify proper valve movement.
BASIS:
These valves are double isolation check valves and are arranged in series.
There is no means to leak test the valves individually.
ALTERNATE TESTING:
These valves will be verified closed by leak testing performed in accordance with Appendix J.
The valves will be tested in series, not individually.
New Page Revision 16
McGUIRE UNIT 1 i
RELIEF / JUSTIFICATION:
RR NB1 VALVE:
IND-262 FLOW DIAGRAM:
MC ISS6 3.0 CATEGORY:
A, C CLASS:
B FUNCTION:
Provide containment isolation, TEST REQUIREMENT:
Verify proper valve movement once per three months.
BASIS:
The system design does not provide any indication for verifying valve closure upon flow reversal.
4 ALTERNATE TESTING:
Valve will be verified shut by leak test performed in accordance with Appendix J.
16 t
?
Revision 16
McGUIRE - UNIT 1 4
e REllEF/JUSTlFICATION:
RR-NF1 VALVE:
INF 229 FLOW DIAGRAM:
MC-1558 4.0 CATEGORY:
A.C CLASS:
B FUNCTION:
Provide containment isolation TEST REQUIREMENT:
1)
Verify proper valve movement once per three months.
2) 10CFR50 Appendix J requires measurement of local leak rato using air or nitrogen.
BASIS:
The s stem design does not provide any indication for
,verif ing valve closure upon flow reversal.
16 ALTERNATE TESTING:
1)
Valve will be verified closed by leak test performed in accordance with Appendix J.
2)
Lffak Rate testing of the valve will be performed per Tech Spec 4.6.1.2.d.4).
Revision 16 l
McGUIRE - UNIT 1 RELIEF / JUSTIFICATION:
RR-NF2 (Deleted per Rev. 16)
VALVE:
INF-228A, INF-233B, INF-234A 16 Revision 16
Mc0UIRE - UNIT 1 RELIEF / JUSTIFICATION:
RR-VI3 VALVE:
1VI-135, IVI-136, IVI 137, IVI-138, IVI-139, Ivl 140, IVI 141, IVI-142 FLOW OIAGRAM:
MC 1605 1,13 CATEGORY:
AC CLASS:
C FUNCTION:
Check instrument air from the main steam isolation valve accumulator tank.
TEST REQUIREMENT:
Cycle quarterly and leak test, BASIS:
These valves are double isolation check valves and are arranged in series.
There is no means to test the valves individually.
Testing these valves makes one of the main steam isolation valves inoperable due to depressurizing the accumulator tank, ALTERNATE TESTING:
These valves will be cycled and leak tested during-cold shutdown, Relief is required because two valves at a time are tested in series, not individually, New Page Revision 16
Mc0UIRE - UNIT 1 RELIEF / JUSTIFICATION:
CS-FW1 VALVE:
IFW-27A FLOW DIAGRAM:
MC-1571-1.0 CATEGORY:
B
-CLASS:
B FUNCTION:
IsolateslowpressureinjectionfromFWST TEST REQUIREMENT:
Full stroke exercise quarterly.
BASIS:
Closure of this valve would render all low pressure injectioninoperable.
ALTERNATE TESTING:
Valve will be cycled and timed during cold shutdown.
16
't Revision 16
l McGUIRE - UNIT 1 RELIEF / JUSTIFICATION:
CS-FW2 VALVE:
IFW-28 FLOW O!AGRAM:
MC-1571-1.0 CATEGORY:
C CLASS:
B FUNCTION:
Prevents reverse flow to the FWST and prevenu pressurizing the FWST.
TEST REQUIREMENT:
Full stroke exercise quarterly.
BASIS:
1FW-28 cannot be full stroked during power operation since the only full flow path is into the RCS by the Residual Heat Removal Pumps (ND).
The ND Pumps cannot overcome RCS pressure.
AL:ERNATE TESTING:
Valve will be full stroke exercised at cold shutdown.
16 Revision 16
l McGUIRE - UNIT 1 REllEF/ JUSTIFICATION:
CS-ND4 VALVE:
IND-70 FLOW DIAGRAM:
MC-1561-1.0 CATEGORY:
C CLASS:
B FUNCTION:
RHR to S1 Suction Check TEST REQUIREMENT:
Full stroke exercise quarterly.
BASIS:
IND-70 cannot be full stroked during power operation since the only full flow path is into the RCS and this can only be performed during cold shutdowns.
IND70 cannot be seat leak tested during power operation since the required valve lineup cannot be made without putting 2000 ppm boron water from the RWST into the chemical and volume control pump suction.
Additionally, with the RCS at normal operating pressure, tt' seat leakage cannot be identified.
ALTERNATE TESTING:
IND-70 will be full stroke exercised and seat leak tested at cold shutdown and depressurized. IND70 will 16 be partial stroked quarterly, Revision 16 l
l
\\
l l
McGUIRE - UNIT 1 RELIEF / JUSTIFICATION:
CS-N05 VALVE:
IND-71 FLOW DIAGRAM:
MC-1561 1.0 CATEGORY:
C CLASS:
B FUNCTION:
RHR to SI Suction Check TEST REQUIREMENT:
Full stroke exercise quarterly.
BASIS:
Valve cannot be full stroked during power operation since the only full flow path is into the RCS and this can only be performed at cold shutdowns.
IND-71 16 cannot be partial stroked during power since the required valve lineup would render both trains of safety injection inoperable.
IND71 cannot be leak tested with the RCS at normal operating pressure because the seat leakage cannot be identified.
ALTERNATE TESTING:
Valve will be full stroked at cold shutdown and depressurized.
16 Revision 16
McGUIRE - UNIT 1 RELIEF / JUSTIFICATION:
CS-N06 VALVE:
IND-8, IND-23 FLOW DIAGRAM:
MC-1561-1.0 CATEGORY:
C CLASS:
B FUNCTION:
Prevents reverse flow through the ND Pumps TEST REQUIREMENT:
Full stroke exercise quarterly.
BASIS:
IND-8 and 1ND-23 cannot be fully stroked during power operation since the only full flow path is into the RCS and the ND Pumps cannot overcome RCS pressure.
l 16 The ND Pump recirc line is not large enough to accomodate full design flow.
ALTERNATE TESTING:
Valves will be full stroke exercised at cold shutdown.
Valve will be partial stroked quarterly.
16 The opposite train valves will be tested closed during quarterly pump testing except when the opposite train of ND is in service.
Revision 16 l
l 1
~_,
r McGUIRE - UNIT 1 RELIEF / JUSTIFICATION:
CS-N113 VALVE:
IN!-15, 1N1-354, 1N!*17, 1NI-347, INI-19, 1NI-348, 1NI-21, IN1-349
. FLOW DIAGRAM:
MC-1562-1.0 CATEGORY:
C CLASS:
A FUNCTION:
Providessafetyinjectionflowpath.
TEST REQUIREMENT:
Full stroke exercise quarterly.
BASIS:
Full or partial stroke during power operation would result in thermal shock to injection nozzles.
ALTERNATE TESTING:
Valve will be full stroked at cold shutdown.
16 Revision 16
McCl11RE - UNIT 1 RELIEF / JUSTIFICATION:
CS-NI14 VALVE:
INI-12 FLOW OIAGRAM:
MC-1562-1.0 CATEGORY:
C CLASS:
B FUNCTION:
Provides safety injection flow path TEST REQUIREMENT:
Full stroke exercise quarterly.
BASIS:
Full or partial stroke during power operation would resultinthermalshocktoinjectionnozzles.
ALTERNATE TESTING:
Valve will be full stroked at cold shutdown.
16
't
. Revision 16 l..
1; l
l-
McGUIRE - UNIT 1 RELIEF / JUSTIFICATION:
CS-NI15 VALVE:
INI-101 FLOW DIAGRAM:
MC 1562-3.0 CATEGORY:
C CLASS:
B FUNCTION:
Opens on flow from FWST to SI.
Checks flow if RHR is supplying SI suction pressure.
TEST REQUIREMENT:
Full stroke exercise quarterly.
BASIS:
Valve cannot be full stroked at power since the SI pumps cannot overcome RCS pressure.
ALTERNATE TESTING:
Valve will be partial stroked quarterly and full stroked and leak tested at cold shutdowns.
16 Revision 16 l
4 McGUIRE - UNIT 1 RELIEF / JUSTIFICATION:
CS-NI16 VALVE:
INI-116, 1NI-148 FLOW DIAGRAM:
MC-1562-3.0 CATEGORY:
C CLASS:
B FUNCTION:
Opens to flow from the NI Pump (s).
Check flow from opposite train.
TEST REQUIREMENT:
Verify proper valve movement once per three months.
BASIS:
Valves cannot be full or partial stroked during power operation since the safety injection pumps cannot overcome RCS pressure.
ALTERNATE TESTING:
Valvos will be cycled open during cold shutdown.
Valves will be checked closed quarterly.
16 ll Revision 16
[
~.
l McGUIRE - UNIT 1 RELIEF / JUSTIFICATION:
CS-N117 VALVE:
IN 1 - 128, 1N I-159, 1N I - 160, 1N I - 156, 1N I - 124, 1N I - 157 FLOW DIAGRAM:
MC-1562 3.0 CATEGORY:
A, C CLASS:
0 FUNCTION:
Open on flow from the $1 pumps to the RCS hot legs, Peactor Coolant Boundary valve.
TEST REQUIREMENT:
Verify proper valve movement once per three months and leak test per Technical Specifications.
BASIS:
Valves cannot be full or partial stroked during power operation since the safety injection pumps cannot discharge irto the RCS at operating pressure.
ALTERNATE TESTING:
Valves will be verified to fully cycle during cold
- shutdown, Valves will be leak tested in accordance with Tech Spec 4.4,6,2,2, 16 Revision 16 l
l l
l McGUIRE - UNIT 1 RELIEF / JUSTIFICATION:
CS-N118 VALVE:
1NI-165, IN1-167, INI-169, IN1-171 FLOW DIAGRAM:
MC-1562-3.1 CATEGORY:
A,C CLASS:
A FUNCTION:
51 discharge check valves to RCS cold legs.
Reactor Coolant Syste'.i Boundary valves.
TEST RE0VIREMENT:
Full stroke exercise quarterly and leak test per Technical Specifications.
BASIS:
Valves cannot be cycled during power operation since the SI pumps cannot overcome RCS pressure to permit flow through the valves.
ALTERNATE TESTING:
Valves will be fully cycled during cold shutdown.
16 Valves will be leak tested in accordance with Tech Spec 4.4.6.2.2.
Revision 16
McGUIRE - UNIT 1 1
RELIEF / JUSTIFICATION:
CS-N119 VALVE:
INI-180, 1N1-181, 1NI-175, IN1-176 FLOW DIAGRAM:
MC-1562-3.1 CATEGORY:
A,C CLASS:
A FUNCTION:
Opens on flow from the ND to the RCS.
Reactor Coolant Boundary valve.
TEST REQUIREMENT:
Valve inovement once per three months and leak test per Technical Specifications.
BASIS:
The discharge pressure of the ND Pumps is not sufficient for opening the valve to the Reactor Coolant System during power operation.
ALTERNATE TESTING:
Valve will be verified to fully cycle during cold shutdown by acoustic emission monitoring. Valves will 16 be leak tested in accordance with Technical Specifications.
Revision 16 I
l McGUIRE - UNIT 1 1
I RELIEF / JUSTIFICATION:
CS-NI20 VALVE:
1NI-129, 1NI-125, 1NI-134, 1NI-126 FLOW DIAGRAM:
MC-1562-3.0 CATEGORY:
A, C CLASS:
A FUNCTION:
Opens on flow from the ND system to the NC Hot Legs.
Reactor Coolant Boundary Valve.
TEST REQUIREMENT:
Verify proper valve movement once per three months and leak test per Technical Specifications.
BASIS:
ND pumps do not develop enough discharge pressure to overcome RCS pressure at power operation.
ALTERNATE TESTING:
Valve will be verified to fully cycle during cold shutdown by acoustic emission monitoring.
Valves will 16 be leak tested in accordance with Technical Specifications.
Revision 16
McGUIRE - UNIT 1 RELIEF / JUSTIFICATION:
CS-NI21 VALVE:
1NI-136B FLOW DIAGRAM:
MC-1562-3,0 CATEGORY:
B CLASS:
8 FUNCTION:
Safety injection suction from RHR TEST REQUIREMENT:
Cycle time quarterly.
BASIS:
Opening this valve during modes in which safety injection is required could seat the check valve from the refueling water storage tank, NI-101, in the event of a LOCA.
The RHR pumps would start, seating the check vt.lve and causing the safety injection pumps to runout the RHR pumps.
ALTERNATE TESTING:
Valves will be cycle timed during cold shutdown, New Page Revision 16 l
l
McGUIRE - UNIT 1 RELIEF / JUSTIFICATION:
CS-NS1 VALVE:
INS-38B, INS-43A FLOW DIAGRAM:
MC-1563-1.0 CATEGORY:
B CLASS:
B FUNCTION:
Containment Spray Header Isolation TEST REQUIREMENT:
Cycle time quarterly.
BASIS:
Opening either of these valves during modes in which the Residual Heat Removal (RHR) system is required would divert flow from the Reactor Coolant system cold legs if the RHR system were to automatically initiate.
The flowrate would not meet the initial flowrate requirements for a large break LOCA in modes 1 through 4.
ALTERNATE TESTING:
Valves will be cycle timed during cold shutdown.
New Page Revision 16
l McGUIRE - UNIT 1 RELIEF / JUSTIFICATION:
CS-NV3 (Deleted per Rev. 16)
VALVE:
INV-1A, 1NV-2A 16 Revision 16
McGUIRE - UNIT 1 RELIEF / JUSTIFICATION:
CS-NV5 (Deleted per Rev. 16)
VALVE:
INV-22 16 Revision 16
McGUIRE - UNIT 1 RELIEF / JUSTIFICATION:
CS-NV6 (Deleted per Rev. 16)
VALVE:
INV-1007, 1NV-1008, 1NV-1009, 1NV-1010 16 Revision 16
McGUIRE - UNIT 1
]
RELIEF / JUSTIFICATION:
CS-NV14 VALVE:
INV-225, 1NV-231 FLOW DIAGRAM:
MC-1554-3.1 CATEGORY:
C CLASS:
B FUNCTION:
Opens on flow from the Centrifugal Charging Pump (s).
TEST REQUIREMENT:
Verify proper valve movement every three months.
BASIS:
Valve cannot be full stroke exercised during power operation because this would result in an increase in the RCS boron inventory and could result in a plant shutdown.
To fully stroke 1NV-225 and 1NV-231 the full centrifugal charging pump flow would have to go through the valves.
The reactor coolant system letdown capacity would not be enough to maintain volume control tank level.
The additional flow would have to come from the refueling water storage tank which has a boron concentration of 2000 ppm.
ALTERNATE TESTING:
Valve will be full stroked during cold shutdown, and 16 partial stroked with normal use.
Revision 16
McGUIRE - UNIT 1 3
RELIEF / JUSTIFICATION:
CS-NV15 VALVE:
INV-223 FLOW OIAGRAM:
MC-1554-3.1 3
CATEGORY:
C CLASS:
B FUNCTION:
Opens on flow alignment from FWST, Closes to ensure sufficient centrifugal charging pump suction pressure when RHR is used as a suction source.
TEST REQUIREMENT:
Verify proper valve movement every three months, BASIS:
Testing of these valve requires opening 1NV-221A or 1NV-222B, Failure of one of these valves in the open position aligns the FWST to the suction of the charging pumps with no means of isolating the flow path.
This would result in an increase in boron inventory in the RCS and could result in a plant
- shutdown, ALTERNATE TESTING:
Valve will be full stroked and leak tested during cold
- shutdown, Revision 16
- ~ ~ ~ - ~
McGUIRE - UNIT 1 i
RELIEF / JUSTIFICATION:
CS-NV16 VALVE:
INV-1046 FLOW DIAGRAM:
MC-1554-3.0 CATEGORY:
C CLASS:
D FUNCTION:
Opens on reciprocating charging pump recire, flow.
Closes to prevent diversion of flow to the centrifugal charging pump suctions.
TEST REQUIREMENT:
Verify proper valve movement once every 3 months.
BASIS:
Testing this valve on line would result in adding 2000 ppm borated water to the centrifugal charging pump suction resulting in a reactor power transient.
ALTERNATE TESTING:
Valve will be verified to seat closed during cold shutdown.
New Page Revision 16
1 l
l McGUIRE - UNIT 1 RELIEF / JUSTIFICATION:
CS-RN1 (Deleted per Rev. 16)
VALVE:
1RN-21A, 1RN-22A, 1RN-258, IRN-26B 16 Revision 16
__.._m____.__
- ~ ~
l McGUIRE - UNIT 1 l
RELIEF / JUSTIFICATION:
CS-RN4 VALVE:
1RN-42A FLOW DIAGRAM:
MC-1574-4.0 CATEGORY:
B CLASS:
C FUNCTION:
Isolates Nuclear Service Water System Non-Essential Header TEST REQUIREf4ENT:
Lycle and time valve every three months.
BASIS:
Failure of this valve in the closed position during testing would inhibit cooling flow to heat exchangers.
This action could result in damage to the equipment 16 served by these heat exchangers.
This equipment includes the PD charging pump and the computer room A/C.
ALTERNATE TESTING:
This valve will be tested during cold shutdown.
l Revision 16
Mc0UIRE - UNIT 1 I
RELIEF / JUSTIFICATION:
CS-SM2 (Deleted per Rev. 16)
VALVE:
15M-9AB, 1SM-10AB, 1SM-11AB, 1SM-12AB 16 Revision 16 I
McGUIRE - UNIT 1 RELIEF / JUSTIFICATION:
CS-VG1 VALVE:
1VG-17, IVG-18, IVG-19, IVG-20 FLOW DIAGRAM:
MC-1609-4,0
-CATEGORY:
C CLASS:
C
' FUNCTION:
Open to provide diesel generator control air from individual starting air banks, TEST REQUIREMENT:
Full stroke exercise quarterly.
BASIS:
To test these valves, the diesel generator would have to be started on a single bank of control air which would be a degraded condition.
This is not justified for quarterly starts.
ALTERNATE TESTING:
Valves will be full-stroke exercised during cold shutdown.
New Page Revision 16
(B) PUMPS:
All pumps included in the IST program.
TEST REQUIREMENT:
IWP-3100 and IWP-3300 require vibration
-amplitude to be measured.
IWP-3210 specifies the allowable ranges of--vibration amplitude measurements. IWP-4110 requires the accuracy of vibration amplitude measurements to be.+/-5% of full scale.
IWP-4120 requires the full-scale i
r,nge of vibration instrumentation to be j
three times the reference value or less.
IWP-4510 requires displacement vibration amplitude to be read at one specific location during each test.
IWP-4520(b) requires the frequency response range of vibration I
instrumentation to be from one-half minimum speed to at least maximum pump shaft speed.
BASIS FOR RELIEF:
Experience has shown that measuring vibration as required by.IWP is not the most effective way to determine the mechanical condition of a 1
pump.
In order to better determine the
-l mechanical condition of-pumps, multiple-vibration velocity measurements will be obtained/ evaluated and supplemented,=when necessary, with acceleration / displacement
-measurements and spectral analysis.
In order 1
to facilitate this testing, digital vibration-instrumentation wi.11 be used.
IWP does not provide adequate guidance / requirements for performing-the better/ alternate testing.
1 ALTERNATE TESTING:'
In lieu of the vibration requirements of j
IWF-3100 and IWP-3300,_ peak vibration velocity be will measured.
In most cases, vibration-velocity gives'the best indication-of machine mechanical condition.-
In lieu of_IWP-4520(b),_. vibration instrumentation will be calibrated and vibration velocity will be measured over a range of 10 to 1000 Hz.
This is the range that.
l the state of the art instrumentation used can be adequately' calibrated over.
In lieu of 1
IWP-4250(b), vibration velocity will be L
measured over;a range from 1/3 minimum-pump 16 l-shaft rotational speed to 1000 HZ.
L (Measurements at other frequencies will be L
taken as necessary.)' This range will encompass l-most potential -noise contributors.
L Rev. 16
In lieu of the vibration instrument accuracy requirements of IWP-4110, the loop accuracy of vibration instruments will be +/- 6.56% of
- reading, This accuracy will be used because IWP does not specify an accuracy for vibration velocity.
This accuracy is the best that can be reasonably obtained from the state of the art instrumentation used.
(The requirements of IWP allow vibration inaccuracies of greater 16 than +/- 15% of reading,)
g In lieu of the range requirements imposed on vibration instrumentation by IWP-4120, there will be no vibration instrumentation range requirement (digital vibration instrumentation is auto-ranging).
It is not necessary to have a range requirement because the accuracies stated above and the readability of a digital gauge are not dependent upon instrument range.
In lieu of the vibration ranges specified in IWP-3210, the following ranges shall be used.
These ranges shall be used because IWP does not specify ranges for vibration velocity.
These ranges are based on current vibration standards (vibration severity charts).
Acceptable Alert Required Range Range.
Action Range For All Pumps When 0 to 0.19
>0.19 to 0.45
>0.45 V <0.075 in/sec in/sec in/sec in/sec r
For' Centrifugal Pumps
<2.5V
>2.5V to 6V r
>6V or r
r r
When V >0.075 in/sec
>0.325 to
>0.70in/sec 0.70 in/sec For Reciprocating Pumps
<2.5V
>2.5V to 6V
- > 6V r
r r
r
'When V >0.075 in/sec r
Acceptable Alert Required Rango Range Action Range For Internal Gear Positive Displacement pumps when
-<2.5V
>2.5V to 6V
>6V r
r r
r V7 >0.075 in/sec Rev. 16
In lieu of IWP-4510, peak vibration velocity measurements shall be taken during each test.
On centrifugal and internal gear PD pumps, measurements shall be taken in a plane approv.imately perpendicular to the rotating shaft in two orthogonal directions.
These measurements shall be taken on each accessible pump bearing housing.
If no pump bearing nous 1ngs are accessible, these measurements shall be taken at the accessible location that gives the best indication of lateral pump vibration.
This location shall be one of the following:
Pump casing Motor bearing housing Measurements also shall be taken in the axial direction.
This measurement shall be taken on each accessible pump thrust bearing housing.
If no pump thrust bearing housings are accessible, this measurement shall be taken at the accessible location that gives the best indication of axial pump vibration.
This location shall be one of the following:
Pump casing Motor thrust bearing housing Motor casing On reciprocating pumps, a measurement shall be taken on the bearing housing of the crankshaft, approximately perpendicular to both the crankshaft and the line of plunger travel.
Rev. 16 l
I.4 The following Safety Class 2 and 3 Pumps (see Section 1.2 for available instrumentation) will be tested in accordance with the intent of Subsection IWP of the ASME Code, except w'nere relief requests have been written for specific requirements determined to be impractical as described below:
(A) Deleted by Revision 16 16 Rev. 16
(B) PUMPS:
D/G Fuel Oil Transfer Pumps (1A, IB)
SAFETY CLASS:
3 FUNCTION:
Diesel Generator Auxiliary Support TEST REQUIREMENTS:
Test pumps in accordance with Subsection IWP BASIS FOR RELIEF:
IWP does not provide appropriate provisions for testing positive displacement pumps.
ALTERNATE TESTING:
The Fuel Oil Transfer Pumps are internal gear positive displacement pumps.
The performance curve for these pumps is relatively flat.
Capacity of these pumps is independent of discharge pressure when operating properly and operating below the cracking pressure of the pump internal relief valve.
Discharge pressure will be measured for information purposes, but will not be compared to any acceptance criteria.
Pumps will be tested by measuring level rise in the Fuel Oil Day Tank and converting this to flowrate.
Pump testing is between the level setpoints of the Fuel Oil Day Tank and this gives a run time of approximately 60-75 seconds.
The flowrate (Q) will be compared to acceptance criteria established in accordance with Table IWP-3100-2 except the Acceptable Range has been widened and the High Alert Range increased to allow for level instrument fluctuations.
Acceptable Range:
0.94 to 1.07 Qr Low Alert Range:
0.90 to 0.94 Qr High Alert Range:
1.07 to 1.10 Qr Low Required Action Range:
<0.90 Qr High Required Action Range:
>1.10 Qr These pumps are designed to produce a flow rate of 22 gpm.
The requirements of the Diesel Generator are approximately 6 gpm.
Five vibration points are monitored and trended on the Fuel Oil Transfer pumps.
Acceptance 16 criteria for the vibration points are established based on Relief Request I.3(B).
Vibration data is trended on a quarterly basis similar to the flow test results.
Any degradation in the performance of the Fuel Oil Transfer pump will first appear in the vibration data.
Rev. 16 l
Also, the F0T pumps are conservatively designed in the discharge pressure that can be obtained.
The capabilities of the pump are the challenged during the quarterly test with respect to discharge pressure.
System limitations restrict the discharge pressure to less than or equal to 55 psig; however, the FOT pump could easily pump against 150 psig.
Since the pump is installed with considerable safety margin with respect to flow and discharge pressure, the most prudent data to 16 use for trending for pump degradation would be velocity vibration data.
By trending the five velocity vibration data points, the acceptability of the widened High Alert and Required Action for flow is justified.
The flow test ensures system operability requirements are met while the vibration test ensures an adequate trending program is in place to ensure continued operability during testing intervals.
D/G Fuel Oil Storage Tank is monitored to maintain level required by McGuire Technical Specifications.
This level ensures adequate NPSH and no suction gauge is required.
16 In addition, monthly Diesel Generator starting and loading (as required by McGuire Technical Specifications) will assess the hydraulic condition of the subject auxiliary pumps and demonstrates the capability of the individual components to perform their design function.
Rev. 16
(C) PUMPS:
Safety Injection Pumps (1A, 18)
SAFETY CLASS:
2 FUNCTION:
To provide emergency core cooling in the event of a break in either the reactor coolant or steam system piping.
TEST REQUIREMENT:
IWP-3100 requires tne resistance of the system to be varied until either the measured differential pressure or the measured flow rate equals the corresponding reference value.
BASIS FOR RELIEF:
When testing these pumps on line, the only flow path available is thru the miniflow to the FWST.
Flow is limited by an orifice in the miniflow line, which yields a test point back on the head curve.
As stated in Generic Letter 89-04, minimum flow lines are not designed for pump testing purposes.
The test point for monitoring pump performance for degradation should be in a more stable region on the pump performance curve.
Also, the amount of time the pump is run at miniflow should be minimized.
ALTERNATE TESTING:
The Safety Injection Pumps will be tested according to the following program, which is consistent with Generic Letter 89-04.
Quarterly The Safety Injection Pumps will be tested quarterly to verify Technical Specification limits are met.
The test measures differential pressure and vibrations.
This data will be trended as required by IWP-6000.
For the quarterly test, the instrumentation accuracy and range requirements of IWP will be waived.
The instrumentation used to measure suction and discharge pressure will meet applicable accuracy requirements for the determination of 16 operability per Technical Specifications.
The instrument used to measure vibrations will meet the requirements as specified in relief request I.3(B).
Since the test loop in the minimum flow i;ne with a flow limiting orifice is installed, flow will be recorded for information only, i
Rev. 16
li l
l Refueling Outage During each refueling outage, a code pump test, including velocity vibration measurements, will be performed at a test point in the stable region of the performance curve.
As an alternative to repeat testing at a single test point in the stable region of the performance curve, a reference curve may be obtained with applicable IWP curves plotted.
Using this technique, the full flow test point (also in the stable region of the pump curve) will be bound by flow points obtained in the 16 development of the reference curve.
The data obtained is then plotted and pump operability at the test point will'be verified when compared against IWP reference curves.
Each of these test methods will provide an acceptable level of quality and safety while maintaining the most flexibility to accommodate system conditions and configurations during refueling outages.
Implementation The new testing program (quarterly and refueling) will be in place by the 1990 Unit 2 refueling outage and the 1991 Unit 1 refueling outage.
Rev. 16 l
i (D) PUMPS:
Residual Heat Removal Pumps (1A, IB)
SAFETY CLASS:
2 FUNCTION:
To remove heat energy from the core and Reactor Coolant System during cooldown and refueling operations.
Also, utilized as part of Safety injection System and Containment Spray System during an accident condition.
TEST REQUIREMENT:
IWP-3100 requires the resistance of the system to be varied until either the measured differential pressure or the measured flow rate equals the corresponding reference value.
BASIS FOR RELIEF:
When testing these pumps on line, the only flow path available is thru the miniflow line.
Flow is limited by the miniflow control valve in the line, which yields a test point back on the head curve.
As stated in Generic Letter 89-04, minimum flow lines are not designed for pump testing purposes.
The test point for-monitoring pump performance for degradation should be in a more stable region on the pump performance curve.
Also, the amount of time the pump is run at miniflow should be minimized.
ALTERNATE TESTING:
The Residual Heat Removal Pumps will be tested according to the following program, which is consistent with Generic Letter 89-04.
Quarterly The Residual Heat Removal Pumps will be tested quarterly to verify Technical Specification limits are met.
The test measures differential pressure and vibrations.
This data will be trended as required by IWP-6000.
For the quarterly test, the instrumentation accuracy and range requirements _of IWP will be waived.
16 The instrumentation used to measure suction and discharge pressure will meet applicable.
accuracy requirements for the determination of operability per Technical Specifications.
The instrument used to measure vibrations will meet the requirements as specified in relief request I.3(B).
Since the test loop in the minimum flow line with a flow limiting control valve is installed, flow will be recorded for information only.
l Kev. 16
i:
?
i o
Cold Shutdown During each cold shutdown where system-conditions permit,-a code pump test, including j
velocity vibration measurements, will be-
~
performed at a test point in the stable region of the performance' curve.
As an alternative to repeat testing at a single test point in the stable' region of the performance curve,- a reference curve may be obtained with applicable IWP curves plotted.
16 4-Using this technique -the full flow' test point i
- (also in the stableiregion of the pump' curve)
G4 will be bound by flow points obtained'in the development of the reference curve.
The data-obtained is then plotted.and pump operability, at the test point will be verified when compared against IWP reference' curves..
1 i
Each of1these test methods will provide an' i
acceptable -level of-quality' andcsafety'while l
maintaining the most flexibility to-accommodate l
system conditions and configurations.
Implementation
-The:new; testing program:(quarterly and
- refueling) will be in place by the 1990 Unit-2 refueling outage and the;1991: Unit I refueling m--
' outage.
_a
)
I, i
'I 5
t y
l 1
Rev. 16
L (E) PUMPS:
Centrifugal Charging Pump (1A, IB)
SAFETY CLASS:
2 FUNCTION:
To supply reactor coolant inventory in the Volume Control Tank or Refueling Water Storage Tank to the reactor coolant system.
TEST REQUIREMENT:
Table IWP-3100-1 requires measuring differential pressure (DP) and flow rate (Q).
BASIS FOR RELIEF:
When testing these pumps on line, the only flow path available is thru a combination of the normal charging and the miniflow to the VCT.
The miniflow is not instrumented for flow.
Flow through the line is assumed to be at the flow rate corresponding to the orifice design conditions.
Also, the combination flow paths yield a test point back on the head curve.
The best test point back for monitoring pump performance for degradation should be in a more stable region on the pump performance curve.
ALTERNATE TESTING:
The Centrifugal Charging Pumps will be tested according to the following program, which is consistent with Generic Letter 89-04.
Quarterly The Centrifugal Charging Pumps will be tested quarterly to verify Technical Specification limits are met.
The test measures differential pressure and vibrations.
This data will be trended as required by IWP-6000.
For the quarterly test, the instrumentation accuracy and range requirements of IWP will be waived, The instrumentation used to measure suction and discharge pressure will meet applicable 16 accuracy requirements for the determination of operability per Technical Specifications.
The instrument used to measure vibrations will meet the requirements as specified in relief request I.3(B).
Since the test loop in the minimum flow line with a flow limiting orifice is installed, flow will be recorded for information only.
Rev. 16
Refueling Outage During each refueling outage a code pump test, including velocity vibration measurements, will be performed at a test point in the stable region of the perfermance curve.
As an alternative to repeat testing at a single test point in the stable region of the performance curve, a reference curve may be 16 obtained with applicable IWP curves plotted.
Using this technique, the full flow test point (also in the stable region of the pump curve) will be bound by flow points obtained in the development of the reference curve.
The data obtained is then plotted and pump operability at the test point will be verified when compared against IWP reference curves.
Each of these test methods will provide an acceptable level of quality and safety while maintaining the most flexibility to accommodate system conditions and configurations during refueling outages.
Implementation The new testing program (quarterly and refueling) will be in place by the 1990 Unit 2 refueling outage and the 1991 Unit I refueling outage.
I Rev. 16
l (F) PUMPS:
D/G Room Sump Pumps (1A2, 1A3, 182, 183)
SAFETY CLASS:
3 FUNCTION:
Water remova's from Diesel Generator Rooms TEST REQUIREMENT-Test pumps in accordance with Subsection lWP.
BASIS FOR RELIEF:
The D/G Room Sump Pumps are vertical pumps tested by filling the 0/G Room Sump and pumping the sump down.
No stable system conditions can be obtained due to the continuous decrease in sump level.
No suction pressure, flow, bearing temperature, or lubricant level instrumentation is available.
ALTERNATE TESTING:
The D/G Room Sump Pumps will be tested for greater than or equal to emergency design flow by:
(1) Filling the sump and reccrding level.
(2) Pumping down the sump and recording both level and pump down time.
An average flow rate will be determined from tha time it takes to pump a known volume from the sump.
Pumping down the sump takes approximately 60 seconds.
An average discharge pressure will be determined and recorded.
The flow rate will be compared with acceptance criteria established per Table IWP-3100-2.
The above testing procedure is an interim method until modifications are made to the sys te'1 onich will permit full flow testing using a recirculation loop back to the sury.
Included in the test loop modification will be direct flow indication and throttling capability to set either AP or Q.
The modifications will oe installed by the 1992 refueling outages.
No suction pressure instrumentation is required since this pressure can be calculated from sump level measurements.
I 1
Rev. 16 1
- _... ~. -. _ - _.. - -.. -. -
(G) Deleted by Revision 16 2,
16 E
l l
Rev. 16
.. _ _ =.
....