ML081200295
| ML081200295 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 08/09/2005 |
| From: | Entergy Nuclear Indian Point 2, Entergy Nuclear Northeast, Entergy Nuclear Operations |
| To: | Office of Nuclear Reactor Regulation, NRC/OGC, NRC Region 1 |
| References | |
| Download: ML081200295 (24) | |
Text
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4.
I C J Revision 1 Q NUCLEAR NORTHEAST INDIAN POINT STATION 1 and 2 FLOW TEST FOR UNDERGROUND SERVICE WATER LINE 408 Prepared by: e3c Technical Reviewer:
Reviewer: //I-7 Reviewer:
Reviewer:
Reviewer: I Meeting No. / Date A
BIENNIAL REVIEW Reviewer / Date Reviewer / Date Temporary Procedure Changes:
Change No. / Date PT-3Y9.rl .wpd
PT-3Y9 Revision 1 TEST EQUIPMENT & MATERlALS I FI-5028A (PC-R36 & PC-R36-1) I -
/tr 2 Y 66 0 I 22 FCU Service Water Flow FI-5032A (PC-R36 & PC-R36-1) /o* 2 p -06 23 FCU Service Water Flow FI-5026A (PC-R36 & PC-R36-1) /@ ~0 6 24 FCU Service Water Flow FI-5030A (PC-R36 & PC-R36-1) - -
/a 29 0 25 FCU Service Water Flow FI-5034A (PGR36 & PC-R36-1) )U - Z P - 6 6 FCU Combined Mtr Clr Flow Out FI-1130 (ICPM 280)
Service Water Header Pressure PI-1191R (ICPM 1474) 5-ZC407 FIC-5919 (EDG) FIG5919 (ICPM 1350) 7 - j2-07 Tethered Ruler N/A N/A I
PT-3Y9.rl .wpd Page2of 14
PT-3Y9 Revision 1 FLOW TEST FOR UNDERGROUND SERVICE WATER LINE 408 1.0 PURPOSE 1.1
[CTS] To perform a flow lest on the underground Sewice Water line 408 (4. 5. 6 header) to meet I the requirements of Technical Specification 4.2.
2.0 GENERAL INFORMATION 2.1 This test establishes a flow into underground lines and determines the flow out. This is done in lieu of hydrostatic or other VT-2 type types due to IWA-5244 for buried piping systems. When the field data has been taken, the measured flow is compared with the known flow from the pump curve information in order to find the deviation from expectation.
If the flow at the loads is much less than the expected flow then excessive leakage through piping or valves may be occurring. This may require further diagnosis in the next outage of sufficient duration.
2.2 This test requires that Service Water flowfrom the Service Water Pumps be obtained using test data and a composite pump curve for two pump operation. The use of a composite curve constructed from manufacturer data and test data is too difficult to arrange in advance for each possible pump variation prior to the test. Therefore, the curve is constructed after the data is obtained. This construction can be expected to take the next working day after field data is obtained.
2.3 Apart from this required testing, there are additional evaluations which are routinely made concerning this particular buried pipe. The IS1 Engineer may elect to provide an overview of current observations and activities in Section 13. Some topics for discussion include:
2.3.1 The performance of any interior or exterior pipe inspections in support of Generic Letter 89-13. Also, additional examinations of this pipe planned or scheduled in the future.
2.3.2 Inability of the system to maintain flow to loads as specified in station documents.
2.3.3 Unexpected up-welling of water in the Transformer Yard or other locations related to this pipe.
2.3.4 Any problems with this pipe known or monitored by System Engineering.
2.4 The test requires that Service Water flow for the Fan Cooler Units and Emergency Diesel Generators be recorded. If instrumentation is not available then alternate instrumentation must be installed or the test can not be relied upon to accurately reflect load conditions.
PT-3Y9.rl .wpd Page 3 of 14
e PT-3Y9 Revision 1 2.4.1 Where the flow to a particular load is between 1% and 3% of the expected total flow in two pump operation (i.e. between 100 gpm and 300 gpm) then it is permissible to use the last recorded flow if either of the following conditions apply: either the flow is maintained by locked valves or the flow is maintained with valves fully open. If neither of these conditions can be met then the flow path shall be instrumented in this test. The last recorded flow must come from a controlled source such as a Surveillance Test or Post Work Test. These conditions are evaluated by the IS1 Engineer in the body of the test.
2.4.2 Where the flow to a particular load is less than 1% of the expected total flow in two pump operation (Le. less than 100 gprn) then it is permissible to use the expected design flow provided by the System Engineer for that load. If this flow is a range then the minimum flow shall be used since that is the conservative flow in this case.
These conditions are evaluated by the IS1 Engineer in the body of the test.
2.5 This test shall be performed by Certified Level I !2J3 Level II examiners.
2.6 Test equipment may be installed in advance of the procedure step requiring installation.
2.7 Reference Drawings 9321-F-2722AND A209762.
3.0 PRECAUTIONS AND LIMITATIONS 3.1 This procedure includes gray-shaded AND underlined information that is NOT applicable to Current Technical Specifications ([CTSJ). Gray-shaded AND underlined information is only applicable to Improved Technical Specifications ([ITS]). Gray-shaded AND underlined information shall NOT be used prior to the Improved Technical Specifications effective date. On and after the ITS effective date, the gray-shaded information shall be used in lieu of the corresponding non-gray-shaded underlined information.
3.2 This test may be performed when the Service Water System is aligned for either Two or Three Header Operation.
3.3 ONLY two Essential Service Water Pumps (SWP) shall be in service at ANY time during the test WHEN data is being collected.
3.4 Use ONLY Test Equipment calibrated in accordance with approved calibrating procedures.
3.5 Observe the proper radiological precautions WHEN performing this test. Obtain a radiation work permit E necessary.
- 3.6 The Service Water Intake Bay is a FME area that requires enhanced controls as per SAO-150, "FOREIGN MATERIAL EXCLUSION AND CONTROL." The Cognizant Supervisor shall conduct a pre-job brief regarding FME controls. As per SAO-150,when personnel are entering enhanced control areas for equipment performance monitoring AND IF enhanced controls are not required by other work in progress, THEN enhanced controls may be relaxed.
PT-3Y9.rl .wpd Page 4 of 14
, ' PT-3Y9 Revision 1 4.0 PREREQUISITES 13 4.1 The IS1 Engineer shall make the following determinations within seven days prior to the test.
4.1.1 IF FI-1130, total Service Water flow for the Fan Cooler Unit Motors (30 - 300 gpm) is NOT available, then enter the last recorded flow and the source document for this flow OR specify that the flow path be instrumented with an ultrasonic flow meter.
Circle "N/A if FI-1130 is available.
@-OR - Ultrasonic Required - QJJ - Last Recorded Flow DocumentationSource of Recorded Flow 4.1.2 Enter the last recorded total flow for all three Zurn Strainers for this underground line and the source document for this flow OR specify that the flow paths be instrumented with ultrasonic flow meters. (24SWPS, 25SWPS, and 26SWPS)
Ultrasonics Required - OR - Last RecordedTOlAL Flow 6 lo e m 7 -0s
4.1.3 Documentation ,.
1/02 0 3 " &source GOQV7 ' -I f 2 -03 IP2 d3 of
-= Recorded NfOYq5 Enter the MINIMUM design flow for each load with an expected Service Water Flow less than 100 gpm. List the source document for these design expectations.
Flow Load &* Minimum Design Flow 72 GPH Source Document P 8D S d ~ A ~ Lt -2 G Load h~fiw704J Minimum Design Flow 3 0 GHfl Source Document D 4 D s d r A d u /-,&
Load C k / r
- l r t Minimum Design Flow /o GAPI 2 q h w t4US'I~ Pfc7W~06J Source Document 13 4 D .Cd 7 4 d u 4.2 The 1st Engineer shall determine the total of the Recorded and Design Flows in 4.1 and enter that total below.
Total Flow Penalty r n j z 2QPm LP- p-=I--5/
4.3 The IS1 Engineer shall determine and record the Calibration D u e dates necessary to complete the Equipment List information.
4.4 The IS1 Engineer shall sign below for completion of steps 4.1 through 4.3.
PRINT NAME SIGNATURE DATE I PT-3Y9.rl .wpd Page 5 of 14 I
0 1 0 PT-3Y9 Revision 1 5.0 PERMISSION TO CO MMENCE r 5.1 Obtain permission from the Shift Manager/Field Support Supervisor (SMIFSS) to commence the test. The SM/FSS shall sign below indicating that permission has been granted.
SMIFSS 6 4h/c 6.1\
PRINT NAME SI URE DATE SMIFSS PRlNT NAME SIGNATURE DATE 5.2 Inform the Control Room Supervisor (CRS) that CRS to sign below indicating notification.
CRS PRlNT NAME CRS PRINT NAME SIGNATURE DATE 5.3 Record the date that the field work actually began.
e 6.0 JNlTlAL CONDITIONS 6.1 Two Service Water pumps are in operation on the Essential Header.
Initials L-)
PT-3Y9.rl .wpd Page 6 of 14
PT-3Y9 Revision 1 NOTE, Service Water Pumps to be operated per SOP 24.1, Service Water System Operation for this test.
7.2 Circle the two operatingzervice Water Pumps below:
24 7.3 RECORD tide level, using a tethered ruler, to the nearest inch by measuring from the center line of the Discharge Pipe to the water surface.
Tide Level: 6 Feet Y Inches 7.4 RECORD the Unit 2 Inlet River Water Temperature from the River Water Temperature Monitoring System (Point 2) in the Control Room or at 15' monitor at condenser inlet (Fluke).
River Water Temp: Tt0f OF 7.5 RECORD AS FOUND Essential Service Water Header Pressure
( PI-1191R on Control Room Pane SJF).
Pressure: PSlG 7.6 RECORD the Zurn Differential Pressure and Pump Discharge pressure as read on the following instruments for 24, 25 and 26SWP's respectively:
7.6.1 DPI-5003s 0 PI-1273 c) 7.6.2 DPI-5004s 3.3 PI-1274 !?L 7.6.3 DPI-5005s v*2, PI-1275 9 4 PT-3Y9.rl .wpd Page 7 of 14
PT-3Y9 Revision 1 7.7 RECORD FCU Service Water data below:
21 FCU Service Water Flow (FI-5028A) 7300 22 FCU Service Water Flow (FI-5032A) I2bD 23 FCU Service Water Flow (FI-5026A) /a40 24 FCU Service Water Flow (FI-5030A) M-0 25 FCU Service Water Flow (FI-5034A) /a$Y i Total Flow (GPM) L3U 7.8 RECORD FCU Motor Cooler Service Water flow from FI-1130 (enter 00s if the indicator is not available):
FI-1130 Flow:
,aas 7.8.1 IF FI-1130 is NOT available AND IF the IS1 Engineer has specified the use of an ultrasonic flow meter in step 4.1 for SW flow to the FCU motors then enter the flow from the ultrasonic flow meter (else enter N/A):
Ultrasonic Flow: 3-97 7.9 RECORD Service Water Flow through Emergency Diesel Generators (FIC-5919 located in EDG Building).
Flow: GPM 7.1 0 IF the IS1 Engineer has specified the use of ultrasonic flow meters in step 4.1 for Zurn blowdown flow then RECORD Service Water Flow through each Zurn Strainer blowdown line. Otherwise enter N/A.
Flow 24SWPS: GPM Flow 25SWPS: ,b GPM Flow 26SW PS: hf GPM 7.11 REMOVE the Ultrasonic Flow Meter on the combined FCU Motor Cooler Outlet Line. (Enter IN/% if not applicable.) lniti als J M G 7.12 REMOVE 3 Ultrasonic Flow Meters on the Essential Header Zurn blowdown lines. (Enter N/A if not applicable.) Initials %
7.1 3 VERIFY ALL Test Equipment used has been recorded on the Equipment List AND ALL Vendor Test Equipment Calibration Information is attached to the test.
lniti als E PT-3Y9.rl .wpd Page 8 of 14
I ,
PT-3Y9 Revision 1 7.1 4 The test is now complete for field activities. The IS1 Engineer shall complete the following and sum the flow readings and penalties below:
Total FCU Flow measured in this test: d3&
EDG Flow measured in this test: /PJJ uri Ud**&f*/ ,J 431 + 71b TCsr Zurn Flow (if measured in this test):
Total FCU Motor Cooler flow (if measured in this lest): 35-7
&=+ 322 [=a+
Total Penalty Flow from Step 4.2:
Sum of Total Load Flow: &%?io/
JSI Engineer a&-
-SIGNATURE p4f-05.
DATE 7.15 The IS1 Engineer shall obtain the Expected Pump Flow for two pump operation from the Service Water System Engineer and record below. This value shall be reduced by 3% and recorded as the Minimum Expected Pump Flow. Sufficient documentation shaft be provided and attached to this test to validate the record (e.g., Manufacturer Pump Curve, Vendor data, etc.).
Expected Pump Flow: /o/s6 Minimum Expected Pump Flow: 7Pf-/
(Reduction of 3% applied.)
SW System Engineer; A cf 6 b f.7 p p d frhr-/.)yeo>
PRINT NAME SIGNATUR E DATE f+4 7--BG(4S/&?)
7.16 The IS1 Engineer shall compare the Total Load Flow to Minimum Expected Pump Flow. If the Total Load Flow is GREATEQ THAN DR EQUAL to the Minimum Expected Pump Flow then CIRCLE SAT below and in Section 10, OTHERWlSE CIRCLE UNSAT.
SAT @
7.17 The IS1 Engineer shall return the test to the Operations representative for normal test close-out.
Initials GY~
8.0 DATA (TABLES)
Performed in Step Text.
PT-3Y9.rl .wpd Page9of 14
3 .
PT-3Y9 Revision 1
9.0 COMMFNTS
PT-3Y9.rl .wpd Page 10 of 14
I . 0 PT-3Y9 Revision 1 10.0 TEST RESULTS 0 10.1 Transpose data from data section and circle the appropriate responses below:
7.17 Comparison of SW Flow in SAT SAT-and out of underground line
- 408 10.2 E ANY results above are UNSAJ, immediately inform th he UNSAT ditions.
%&5 Name of SM Informed Date 10.3 Inform the CRS that field work is complete:
CRS Initials Date 10.4 E ANY other unsatisfactory results are obtained CB abnormal indications observed during this test, record ALL explanations AND corrective action initiated (including any Condition Report numbers) in the Comments Section.
0 10.5 All individuals involved in test performance should print their name and sign below (The have already signed i E.#alr1r/
Print Name/Signature/ Print Name/Sign at Print Name/Signature/ VT2 Expiration Date Print Name/Signature/ VT2 Expiration Date 10.6 Forward procedure to the Cognizant Supervisor for review.
PT-3Y9.rl .wpd Page 11 of 14
PT-3Y9 Revision 1 11.0 suPERVISOR REVIEW
- 3) 11.1 Ensure the test is complete AND the Test Results Section is completed accurately.
11.2 JF ANY error is found in the recorded data that changes a SAT response to an UNSAT response in the Test Results Section, notify the SM m.
11.3 Initiate a Condition Report for ANY Test Results in Section 10.0 that are UNSAT or any unexplained test anomalies.
Condition Report number: 7 ($-@ Z - ~ - O 3 2 H -
11.4 COMMENTS; Supervisor pus 4 Print Name b L T
l Signature 11.5 Forward procedure to the SM for review.
PT-3Y9.rl .wpd Page 12 of 14
I .
PT-3Y9 Revision 1 12.0 SM REVIEW 12.1 -IF ANY Test Results Response was UNSAT, verify that a Condition Report has been written to correct the outstanding deficiency.
12.2 Ensure ALL applicable actions are taken in accordance with Technical Specifications other applicable documents.
/
12.3 Verify that all comments in steps 9.0 and 11.4 were reviewed and dispositioned.
12.4 0
12.5 Forward procedure to Surveillance Test group for review.
PT-3Y9.rl .wpd Page 13 of 14
I e PT-3Y9 Revision 1 13.0 e 13.1 TEST ACCEPTANCE 13.1.1 Ensure required data AND initials are entered in the test.
13.1.2 Ensure the Test Results AND subsequent sections are completed.
13.1.3 Ensure ALL deficiencies AND abnormal conditions noted have adequate corrective action identified AND ANY applicable Condition Report numbers are noted.
13.1.4 J ! discrepancy is found during the test review, correct the discrepancy or initiate a Condition Report.
Condition Report number: zo05y DJ.3J-f 13.3 @
None
/O -/7-Oss IS1 Engineer Print NameV Date PT-3Y9.rl .wpd Page 14 of 14
.L' -
=
- ==z IPEC SITE MANAGEMENT QUALKY RELATED ADMINISTRATIVEPROCEDURE IP-SMM Revision 1 DC-904 MANUAL INFORMATIONAL USE Page 21 of 23 AlTACHMENT 10.2 PEER REVIEW SHEET PROCEDURE NUMBER:
DATE PERFORMED: . +[
' ! ? f YES NO^ N/A
- 1. Calibration due dates recorded?
- 2. Instrument(s) within calibration?
A
- 3. Changes documented by TPC?
A5 * *
- 4. All required procedural steps completed? / .
- 5. All steps NOT completed noted & explained in Comments Section? /
- 6. All corrections lined out, dated and initialed?
I/
- 7. Allcalculations correct?
c/
- 8. All data properly transcribed?
4
- 10. Operability conclusions correct?
I
- 11. Overall acceptance conclusions correct?
PEER REVIEWER:
Signature/Date
Evaluation to Determine Expected SW Flow During Surveillance Test PT-3Y9 Flow Test for Underground Service Water Line 408 The pumps in service for the test were 25SWP (96JC17OOS)and 26SWP (97JC1703S).
Per PT-3Y9, the recorded river water level during the test was 6 feet 8 inches below the centerline of the pump discharge pipe. An overall distance of 9 feet was used for the difference between river level and strainer gauges.
Per PT-3Y9, the 2 5 S W discharge pressure (PI-1274) was 86 psig, and the 26SWP discharge pressure (PI-1275) was 90 psig.
The discharge pressure in feet is; 25 SWP: 2.31 X 86 psig 199 ft 26 SWP: 2.31 X 90 psig -208 ft The total lift is; 25 SWP: 199 ft + 9 feet = 208 ft 26 SWP: 208 ft + 9 feet = 217 ft
/
The flow data around the test point: ,
c 25 SWP: 5065 gpm at 213.12 ft 5301 gpm at 203.41 ft Interpolated (at 0.041 24 I 26 SWP: 4839 gprn at 221.89 ft 5065 gpm at 214.08 ft Interpolated (at 0.035 gpm per ft) is 4979 gpm Total SW flow is 5177 + 4979 = 10156 gprn Acceptance criteria is to be within 3% of estimated pump flow.The acceptance criteria is:
9851 gprn Chris Bergren IPEC IST August 2008
.r.E.
1 0
m U.S. GALLONS PER MINUTE 1 8 EC-2-9 6J C 1 700S-SJC66559-TC7955-ne w XIS
. I ' * ' JOHNSTON PUMP COMPANY PERFORMANCETEST SET-UP AND TEST DATA SHEET MaUr HP. I RP.M.: 5001 1770 commentp:Tcdthcbow(~~ulejobiobm M I C I I V : 316012300 and a lab d i m head @MIspeed H a t a S I N : MYJ122024 m a test $b motor.
DESIGN Q) RP.W 177s G.P.M.: sa00 Head (n]: 220 I3.H.P.:
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Nem No.: Serial Number 96x1700s Fluid: Job Numbor: 9hlCl700s Application: Chatlanooga P.O. Number TE-13242 E n d w cu6bnef P.O. Number.
=e: POF Number sxw558 leg:
T a b Shui-On VealNO): PIUW MaMga:
I I I I I B.HP.1 350.8 280.3 292.8 308.9 322.2 338.7 I 346.4 I 350.1 1 352.9 1estR.P.U: 1786.0 1789.0 1789.0 1787.0 1788.0 1786.0 1787.0 17Bb.O 1785.0
47s . 95.0 450 ' 90.0 425 05.0 400 80.0 yLY 375 75.0 w
2 350 7o.o ul 5 325 65.0 I
w 300 80.0 2m 215 55.0 4 250 50.0 z 22s 0
45 .O 4
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2ocI 44.0
$ 175 35.0 8 150 J
30.0 4
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125 25.0 100 20.0 75 15.0
!io 10.0 25 5.0 0 0.0 C 0 500 1000 1500 2QM1 2500 3000 3500 4000 4500 SUO0 5500 8000 BSOO 7000 7500 8OO0 C U . S GALLONS PER MINUTE 1 O C P -I0 7 it-> wiac E IFGCC~A ~ ~ ( 1n3 V.PW 1
JOHNSTON PUMP COMPANY PERFORMANCETEST SET-UP AND TEST DATA SHEET b
-' Ent- I CONDITIQN REPORT CR-IP2-2005-03358 I I Originator Phone: 8674 Originator: Bergren,Christopher J Originator Group: P&C Eng Codes Staff Operability Required: Y Reportability Required: Y Supervisor Name: Azevedo,Nelson F Discovered Date: 08/16/2005 12:42 Initiated Date: 08/16/2005 1257 Condition
Description:
PT-3Y9, Flow Test for Underground Service Water line 408, failed to meet acceptance criteria.
Immediate Action
Description:
There are no specific criteria regarding this test contained in Technical Specifications or any other licensing basis document.
The test criteria was developed as one method of meeting a leakage examination requirement under ASME Section XI, IWV-5000.Alternate methods of meeting the same requirement can be evaluated and implemented prior to the "drop dead" date for the examination which is currently 5/14/06 (the end of 2Rl7). Since the requirement has not been met, the requirement remains OPEN under the Inservice Inspection Program for tracking purposes. Code Programs is tasked with closing the open item.
In this examination, SW pump flow values are totalized on the Essential Header and compared with expectations derived from pump curves based on SW pump discharge pressures. These values may vary widely based on current throttle positions, inter-system leakage, calibration of installed instrumentation and other factors.
The results of this test do not indicate any problem with the Service Water System which remains in the same operable status that pertained to the system prior to the conduct of the test. The basis for this conclusion is that the SW system is checked quarterly to verify accident flow rates at the Fan Cooler Units with the TCV-I 104 and 1105 valves open. SW pumps are tested quarterly and currently all operating acceptably. All required loads are being cooled acceptably at this time. Therefore, there are no indications from these required tests and normal system operation that there is any flow rate problem with the essential header.
Suggested Action
Description:
Evaluate for hrther action as required.(P&CE, Code Programs).
EQUIPMENT:
Tae Name Tae Sumx NameCornDonent Code Process Svstem Code sw I
REFERENCE ITEMS:
TvDe Code DescriDtion TSN PT-3Y9 TRENDING (For Reference Purposes Only):
Trend TvDe Trend Code REPORT WEIGHT I ES ESPC KEYWORDS KW-SURVEILLANCE
-- Enfw I REPORTABILITY ICR-IP2-200503358 Reportability Version: 1 Report Number:
Report Code: NOT REPORTABLE Boilerplate Code:
Performed By : Janicki,John W 08/22/2005 10:32 Reportability
Description:
Per the IST engineer this is a Section XI tracking item. The system performance is not affected. Another methodology for closing the tracking item will be developed. Not reportable per IP-SMM-LI-108.
-- Ehtegy CORRECTIVE ACTION CR-IP2-2005-03358 C A Number: I I Group II Name I Assigned By: CRG/CARB/OSRC Harrison,Christine B Assigned To: P&C Eng Codes Mgmt Azevedo,Nelson F Subassigned To : P&C Eng Codes Staff Bergren,Christopher J Originated By: Hanison,Christine B 8/18/2005 12:46:28 Performed By: Azevedo,Nelson F 9/6/2005 13:58:03 Subperformed By: Bergren,Christopher J 9/6/2005 09:26:38 Approved By:
Closed By: Azevedo,Nelson F 9/6/2005 13:58:03 Current Due Date: 09/06/2005 Initial Due Date: 09/08/2005 CA Type: DISP - CA Plant Constraint: #NONE CA
Description:
Please review and assign further corrective actions as required.
Response
See sub response below.
Subresponse :
The 1P2 procedure and IP3 procedure have different acceptance criteria. The code has no specific acceptance criteria and simply indicates that the owner shall specify an acceptance criteria (IWA 5244(a)) for flow difference. A corrective action is assigned to Code Programs staff to provide a consistant approach for testing and revise the procedures accordingly. As stated in the body of the initial condition report, there is no apparent problem with the Service Water system at this time. The system has been meeting cooling requirements during a period of elevated temperatures with the River Water support system out of service.
Closure Comments:
.-.E G f e r g y CORRECTIVE ACTION CR-IP2-2005-03358 Assigned By: P&C Eng Codes Staff Bergren,Christopher J Assigned To: P&C Eng Codes Staff Bergren,Christopher J Subassigned To :
Originated By: Bergren,Christopher J 9/6/2005 09:25:04 Performed By:
Subperformed By:
Approved By:
Closed By:
Current Due Date: 10/20/2005 Initial Due Date: 10/21/2005 CA Type: ACTION Plant Constraint: #NONE CA
Description:
Evaluate testing variation between IPEC IS1 pressure test program for underground lines. Determine a suitable common approach. Document the basis for the final approach. Implement necessary procedure change.
Response
Evaluated differences between Units in IS1 pressure tests for same underground piping. IP3 uses a larger plus/minus 15 per cent criteria and IP2 uses plus/minus 3 per cent. The ASME Code does not specify any particular value of acceptance criteria when performing flow tests. The Owner is to specify acceptance. Other indicators of piping condition were discussed with the System Engineer. The line in question was fully inspected visually (internal) during 2R15 with no anomalies found. After discussion, it was determined that the acceptance criteria for both sites shall be the same which is pludminus 15%. This was requested via feedback to Operations Procedure Group and the lP2 test was revised for the alternate underground line. The test subsequently was performed satisifactorily. Both underground lines meet the latest requirement and the piping remains operable. No additional actions are needed in this case.
Chris Bergren IPEC 1ST Subresponse :
Closure Comments: