ML18044A758

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Feedwater Line Water Hammer Test.
ML18044A758
Person / Time
Site: Palisades Entergy icon.png
Issue date: 04/11/1980
From:
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
Shared Package
ML18044A757 List:
References
T-130, NUDOCS 8004150479
Download: ML18044A758 (14)
v • d • e


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PALISADES NUCLEAR PLANT PROC HO T-130

@ TITLEi FEEDWATER LINE WATER HAMMER TEST SPECIAL TEST PROCEDURES PAGE 1 OF 4 REVISION 0 consumers Power DATE REVIEWED.BY TECHNICAL REVIEW PRIOR TO USE: APPROVED BY PLANT GENERAL MANAGER Ref.: Admin.Proc.10-1,Append.C-5 PRC/QC DATE / DATE I DATE 1.0 PURPOSE To ascertain whether or not a feedwater line water hammer will result from the covering.. .of._ the- feedwater ,.sparger..£ollowing its_ uncover _and. drainage.~_various_...,

pressures and auxiliary feedwater flow rates. Due to the symmetry of the feed-water lines and the nearness of the containment access to the B steam generator, the f eedwater piping connected to the B steam generator will be tested for a water hammer. Test will be conducted at 200 psi and 900 psi on secondary side~

2.0 REFERENCES

2.1 2.2 2.3 2.4 2.5 2.6 3.0 PREREQUISITES 3.;l Instrumentation including strain gauges, accelerometers,. amplifiers a~d .*

brush recorders have been installed per Figure i* and verified by Test

  • Engineer to be operational. Backgro~nd information has been recorded on.

strip charts. FI073A has been checked out by I&C.

Date: ~~~~~~~~-

  • 3. 2 All .personnel ar~ cleared from containment.

3~3 Communications have been established among personnel in Control Room North cable penetration area and component cooling room. (Instrumentation will be located in North cable penetration area~)

3.4* Plant inheatup per GOP2 with bubble formed in pressurizer and T hot at 0

382 F (this corresponds to 200 psi in steam generator).

3.5 .Steam generator blowdown has been isolated.

8 0041 50 ~ 7 °\ .

I.

,.-----------------~---------*-----**------

PALISADES NUCLEAR PLANT

@) TITLE i SPECIAL TEST PROCEDURE PROC NO PAGE 2 REVISION T-130 OF 4 0

consumers Power

  • FEEDWATER LINE WATER HAMMER TEST DATE 3.6 Verification of reasonably lowest achievable concentration of non-condensible gasses in secondary system (feedwater line, S*G.) shall be made by Test Engineer through consul~ation with the Chemistry Department.

Verified: Date: .

3.7 Test Engineers are cognizant of all phases of.test.

Date:

Date: - - - - - - - - - - - -

Date:

Date:

3.8 Notify QC prior-to start of test.

QC Inspector: Date:--*-----------

~

3.9 Authorization for test to begin has~ given by *the Shift. Super1{isor *

(

Da~ ("**v~hift SupeNisor l ...

Plant Gen:,;al Manager I Date 4.:o PRECAUTIONS AND LIMITATIONS ~\ -(f,_~.;~;)~~~~:~.; > ,,.: ..

'{;\'~ \ *' ,,. -**
4. l When adding feedwat .;{~'t\:!f~~;-~:. ~~~i~t;:,*-:-;: S ,.temperature and pressure will
  • drop which will i . ~*a*sb.i-lii:imge of i>cs. ** *

. *;;c, \>~\~ ~ .

4.2

  • If during a test indica'14*s of a water hammer. are present, remainder of test shall be aborted un¥ess evaluation of tes.t data proves otherwise.*

4.3 If during a test indications of a water hammer are present, consideration shall be given* to EOP.7 main steam line break/main *feedwater line break .

inside containment.

4.4 At the discretion of the Test Engineer;. steps can be.terminated.early

  • and reinitialized.

4.5 Chart strip recordings must be labeied for each test in matrix with date, time, pressure in S.G. and refill rate.

4.6 Consideration shall be given to actual vs. indicated steam generator level.

~;

I 4.7

  • Pressurizer beaters shall be kept on. }Jressure will be controlled t:

4.8 through cycling of spray valves.

Boron* concentration shall* be at** cold shutdown concentration or greater

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~

PALISADES NUCLEAR PLANT PROC NO T-130 SPECIAL TEST PROCEDURE PAGE 3 OF 4 REVISION O consumers Power TITLE; FEEDWATER LINE WATER HAMMER TEST DATE

. s.o PROCEDURE 5.1 Establish pressurizer level at 50% and put pressurizer level control in local with set~oint at 50%.

5.2 Insure all charging pumps are in auto.

5.3 With motor driven aux feedwater pump P-8A on, use MSIV-CV0501 bypass valve lllMS and CV0736A to adjust B S.G. level to 45%. -* - .

5.4 Adjust A S.G. level to 50% using MSIV~CV0510 bypass valve llOMS and CV0737A.

5.5 Isolate A S.G. by closing llOMS and CV0737A *. Adjust llOMS and CV0737A to keep B S. G. at 45%.

5.6 Stabilize PCS at 382°F or*532°F aepending on whether S.G. 200 psi or 900 psi test is being done.*

5.7 Close CV0736A and adjust lll~o -~ 4:.. . to 15% while main-taining primacy system te'~~~~ a: alue of Step 5.5.

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........ 5.8 When* !evel reaches l~:,¥.~~,}~djus CV~736A and lllMS to maintain.:'

this level while~~, Y.~i\~~em temperature. stable.

5.9 Hold level at 15%,~~~~-:~~:~~greater than 5 minutes.

5*. lO Close lllMS and est~\i':f:.X.V 'fesired flQW rate through. adjustment of

  • CV0736A *and use of FI~36. **
  • NOTE: For test runs 1Jith low flow rates~ *uiMs will have t-o be opened slightly to maintain desired PCS temperature.

For test run!! with high flow rates, PCS temperature may dr~p.

CAUTI.ON: .* Water hammer event should be anticipated to occur during refill process.

5.11 When level reaches 45% in S.G. '.B, adjust CV0736A and lllMS to maintain level at 45% 'and to stabilize PCS temperature.

5.12 Repeat Steps 5.3 - 5.11 for new matrix values upon consent of Test Engineer and Shift Supervisor.

NOTE: *Prior to consent, Test Engineer.will evaluate data from previous test and compare with acceptance criteria.

( . '

~--- ... *~*---- . -- -:--*

PALISADES NUCLEAR PLANT PROC NO T-130 SPECIAL TEST PROCEDURE PAGE 4 OF 4 Consumers Power TITLE; FEEDWATER LINE WATER HAMMER TEST.

REVISION DATE O C.

5.13 Return to Service 5.13.1 - Adjust steam generator level in both S.G. A and S.G. B to Shift*

Supervisor's advised level.

5.13.2 Disposition charging pumps per Shift Supervisor's advice.

5.13.3 Restore blowdown per Shift Supervisor's advice.

5.13.4 Disposition pressure control in primary system per Shift Supervisor's advice.

6.0 ACCEPTANCE CRITERIA Results from a -test,- ie strain gauge output, accelerometer .output*, show no dis-continuities or excessive spikes which are indications of a water hammer event.

- A deviation report will be generated if~ications of a water hatmner. event exists.

1. 0 - RECORDS AND ATTACllKENTS
  • 0 J.I ~~:~;hm:::re I. Bloc~~~~t.:entation - ___ (**

7.l.2 Figure 2. ~~t~'"""

1. 2 ReCords "'~:~i~'!;
1. 2.1 Chart Strip Re~~~

7.2.2 Tape Recordings .

7.2.3 Calibration information on equipment*

7.2.4 Chemistry data pertaining to secondary system 7.2.5 Deviation reports, if generated 8.0 REVIEW 8.1 Test Data Evaluation performed by/date:~-------------------'-------------*

8.2 Technical Review performed by/date:

8.3 Admin Review performed by/date:-------,,..--------------'-------*

Responsible Dept Head

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  • Palisades Plant Sheet>l Feedwater Sparger Conditions Following Level Drop

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