ML20071L777

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AP600 ADS Test Spec (Phase B1)
ML20071L777
Person / Time
Site: 05200003
Issue date: 06/30/1994
From: Conway L
WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To:
Shared Package
ML19304C444 List:
References
WCAP-14113, WCAP-14113-R, WCAP-14113-R00, NUDOCS 9408030255
Download: ML20071L777 (50)
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Westinghouse Non-Proprietary Class 3 WCAP-14113 Revision 0 AP600 Automatic Depressurization System Test Specification (Pliase B1)

June 1994 l

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L. E. Conway, [

Test Engineering U c1994 Westinghouse Electric Corporation All Rights Reserved

AUTOMATIC DEPRESSURIZATION SYSTEM TEST SPECDTCATION TABLE OF CONTENTS Section Title Page 1-1

1.0 INTRODUCTION

2-1 2.0 PHASE B1 TEST PROGRAM OBJECTIVES 3-1

3.0 REFERENCES

4-1 4.0 PHASE B1 FACILITY REQUIREMENTS 5-1 5.0 PHASE B1 TEST ARTICLES 6-1 6.0 INSTRUMENTATION AND CONTROL i

7-1 7.0 DATA ACQUISITION SYSTEM 8-1 8.0 TEST OPERATION 9-1 9.0 TEST REPORTS AND DATA REQUIREMENTS I41 10.0 QUALITY ASSURANCE REQUIREMENTS I

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Automatic DEPRESSURIzATION SYSTEM TEST SPECD1 CATION 1.0 INTRODUCflON The AP600 is a pressudzed water reactor (PWR) which utilizes an Automatic Depressudzation System (ADS) to ensure that the reactor coolant system (RCS) is depressurized so that long-term gravity injection is in;tiated and maintained. De AP600 ADS consists of two independent piping flowpaths from the top of the pressurizer, each going to a quenching device or sparger which is submerged in a water filled portion of the reactor containment structure. Each of these twc piping flowpatha is made up of a 14 inch pipe from the pressurizer, which connects to three parallel paths (4,8, and 8-inch).

Dese three parallel paths each have two normally closed valves in series. De three parallel paths connect to a single 16 inch discharge line which ends at a submerged sparger. When the ADS is operated, the closed valves are sequentially opened to provide a staged, controlled depressgation of the RCS from operating conditions at 2250 psia /650*F tosaturated conditions at[

] De AP600 ADS operation for each stage consists of first opening the upstream (isolation) valve, followed by the opening of the downstream (flow control) valve. See Reference 1.

De Automatic Depressurization System Phase B Test is a full sized simulation of one of the two AP600 ADS flowpaths from upstream of the ADS valves to the sparger and is intended to duplicate or conservatively bound the operating conditions of t e AP600 ADS valves, and sparger. The ADS h

Phase B test will be performed at ENEA's VAPORE Test Facility in Casaccia, Italy, where the Phase A portion of the ADS test was performed in 1992. His Phase B test program is subdivided in two portions, B1 and B2. De B1 tests will be the overall system performance tests and will be performed with the ADS valves (or simulated valves) fully open. Flow initiation in this B1 portion of the test will be accomplished by valves upstream of the actual ADS piping ring. He B2 ponion of the ADS test will be performed separately to demonstrate ADS valve operability. Both the B1 and B2 portions of the test will include blowdowns through a prototypic sparger, submerged in a quench tank; witn either saturated steam from the top of the VAPORE steam / water supply tank or with saturated water from the bottom of the supply tank (see Figure 1.1).

his test specification provides the requirements for the B1 portion of the ADS Phase B testing program, i.e., overall system performance verification. P..e B2 portion of the test program, valve operability verification, will be specified separately.

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ADS Phase (B1) Test Specification VAPORE Facility Process Piping and Instrumentation 1-2

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AtITOMAMc DEPRE3StRIZAMON SYS1T.M Twr SPECU1CAMON 2.0 PIIASE B1 TEST PROGRAM OBJECTIVES

'lhe test objectives of the B1 portion of the ADS test are:

Collect thermal hydraulic performance data with both single phase steam and two phase steam / water flow to support development and verification of the analytical model of the ADS to be used in safety analyses evaluations of events for which the ADS is actuated.

Verify the design and proper operation of the ADS sparger over a range of single phase steam and two phase steam / water flow rates.

Obtain additional quench tank pressure impulse data to verify the analytical model used to establish the in-containment refueling water storage tank (IRWST) structural design over a range of single phase steam and two phase steam / water flow rates.

Simulate the AP600 plant piping (including elbows, tees, etc.) and ADS valves to identify / characterize the flow conditions that occur during full flow ADS operation over a range of single phase steam and two phase steam / water flow rates.

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AttroMAnc DEFRESSURIZATION SYSU31 TEST SPEC 1r!CADON j

3.0 REFERENCES

AP600 Standard Safety Analysis Report, AP600 Doc. No. GWGLO21, June 26,1992 with AP600 i

1.

Design Change Description Report, Letter NTD-NRC-94-4064 February 15,1994.

2. Automatic Depressurization System Test Specification; AP600 Doc. No. PXS IP 004, Rev. O, 1/23/91; WCAP-13342.
3. WCAP-13891, Rev. O, "AP600 Automatic Depressurization System Phase A Tes, Data Report, May 1994."

ENEA Report No. EIQ193001, " Experimental Activity on AP600 Components and Systems 4.

Performed by the VAPORE Plant (ENEA-CRE, Casaccico), 'A' Phase Final Report and Operative and Control Plan," February 1993.

5. Sparger Precurement Specification, MED-PCE-9506, Rev.1, Feb.1991.
6. Sparger Pedestal Spool Piece Fabrication Specification MWO1-T4-001, Rev.1, Nov.,1993, E Spec. No. 412A34.
7. Westinghouse letter, DCP/TE (94) 087, L. E. Conway to A. de St. Maurice, June 1,1994 (reissue).
8. Westinghouse IWR No. MB 1275311.
9. Edwards 12-inch Gate Valve Information Package, AP600 Document No. PV60-VTM-001.
10. Atwood & Morrill 12-inch Gate Valve Information Package, AP600 Document No.

PV60-VTM-002.

11. Anchor / Darling 4-inch Globe Valve Information Package, AP600 Documen* No. PV60-VTM-003.
12. Anchor / Darling 8-inch Gate Valve Information Package, AP600 Document No. PV60-VTM-003.
13. Westinghouse 8-inch Gate Valve Information Package, AP600 Document No. PV60-VTM-004.

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AUTOMAnc DEFRESSURizADON SYSTEM TESr SPEC 1HCADON 4.0 PHASE B1 FACILITY REQUIREMENTS Re test facility for Phase B (see Figures 1.1 and 5.1) of the Automatic Depressurization Test shall have the following capabilities:

A. Provide an isolable source of saturated steam at pressures and temperatures typical of the AP600 reactor conditions to achieve prototypic volumetric flow rates expected during ADS operation.

Figure 4.1 provides the saturated steam mass flowrate anticipated to initially occur when the A valves on the AP600 pressurizer are opened at 2250 psia.

B. Provide an isolable source of saturated water at pressures and temperatures typical of the AP600 reactor conditions so as to achieve (or conservatively bound) prototypic volumetric and mass flowrates through the ADS. In the AP600 plant, the initial steam flow from the pressurizer will be followed by low quality steam or saturated water which flashes. Figure 4.2 provides conservative anticipated mass flow (unthrcttled) through each individual ADS valve and combined valves choked flow of saturated water through full open ADS valves.

C. A tank which contains water, in which the sparger can be mounted,is required to simulate the AP600 quench tank. See Section 5.0 below for additional information.

D. The facility must be designed to assure acceptable piping and valve thermal and dynamic stresses i

during ADS testing. For example: Figure 1.1 shows piping connections to preheat the piping i

upstream of the ADS valves, and the common discharge piping to the sparger may require expansion bellows and position adjustment devices.

E. The facility shall have the capability to purge air from the discharge piping using steam in order to minimize sparger air clearing loads when/if test full flow conditions are initiated over a shorter j

than prototypic time.

F. Provide adequate space for the ADS valves, piping, and required supports and instrumentation such that the test can be constructed and operated with efficiency and safety.

G. Provide an isolable source of pressurized, saturated steam and water at[

]h in order to be able to achieve flow conditions (pressure, temperature, steam quality) at the ADS valve / piping ring that simulate the AP600 ADS.

II. De AP600 plant ADS valves will have slow operating motor driven actuators that utilize {

DC electrical current provided by batteries. However, motor driven actuators for the test valves will be fast operating {

d will utilize {

] electrical power supply.

lhe facility shall include appropdate instrumentation and data acquisition system (DAS) that can 1.

sample data at{ )Enples per second in order to be able to record pressure pulses that have dominant frequencies as high as] [

4.]

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AtTrOMATIC DEPRESSUR12ATION SWEM TEST SPECD1 CATION J.

The existing 16-inch Schedule 80 discharge line into the quench tank will be utilized. The pipe must be routed so as to be level or sloping downward to the quench tank and must not contain any loop seals. Note: based on the results of Phase A testing, the existing bellows in the discharge line will have to be replaced with higher design pressure bellows.

K. The existing ENEA vacuum breakers in the 16-inch discharge piping will be utilized to prevent water from rising in the discharge piping when flow to the ADS sparger is terminated.

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INITIAL ADS STEA:VI FLOW 43

ADS MAXIMUM SPARGER FLOW Sparger Flow @ Expected Open. Pressure cb O

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i AUTOMATIC DEPRESSURIZATION STAGES 1st Stage Valve 2nd Stage Valve

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3id Stage Valve i

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AttrOMARC DEPRESSUR12AMON SYFIEM TEST SPECD1CADON 5.0 PIIASE B1 TEST ARTICLES A. Spareer A full-size sparger tested in the ADS Phase A test (References 2 & 5) will be used in this ADS Phase Bl test. The mechanical force and moments on the sparger arms are to be measured during sparger operation using strain gages and pressure measurements inside the sparger. Movie or video recordings of sparger and quench tank operation are to be made. Note that the sparger inlet connection is 14-inch, Sch. 80 vs. the current AP600 design in which the sparger inlet is 16-inch diameter pipe (see Figures 6.1 and 6.2).

B. Ouench Tank (Simulated IRWST) ne quench tank containing the sparger shall be cylindrical in shape and have rigid walls. Tank requirements are provided below.

Minimum tank wall height [

]

Minimum tank diameter [

]

Open top for unrestricted venting.

Provision for heating the contained water and capable of testing at saturated conditions

(~212*F)/(100'C).

Capability to withstand cyclic pressure loads generated by the sparger (see Reference 2).

Capability to mount required instrumentation for pressure and temperature measurements in the contained water as shown in Figure 6.3.

C. Spareer Pedestal OhR An{

]long sparger pedestal shall be provided by Westinghouse (see R pedestal will be used to raise the sparger in the quench tanks so that it is submerged [

below the water surface (the same depth as in the AP600 plant) when the quench tank water level is

[

]Ne pedestal shall be instrumented with stram gages to verify that forces imposed on the pedestal during sparger operation are acceptable.

D. Valves Note that only one of two valves in series for each stage of AP600 ADS will be included in the Phase Bl test and these valves will not be operated (opened or closed) with the piping pressudzed or with flow. He second valve in each ADS stage will be simulated by a flow orifice, sir.ed to provide the same flow area and the approximate 1/D as its corresponding full open ADS valve. Rese valves oNp6000966w.wpf.lb40794 5-1 e

AtTrOMATIC DEPkESSURIZADON SYSTEM TEST SPECD1CADON (and orifices when installed) are test articles only in that they provide the flow area and resist full open valves in the AP600 ADS. The orifices which are installed for some of the B1 tests (

Section 8.0) were specified in Reference 7 and are:

Orifice simuhting the stage 2 and 3,8-inch control valves hole diameter,[

]O square edged plate thickness,[

]3D S-ratio,[

]t effective IJD,{ ]D Orifice simulating the Stage 1,4-inch isolation valve hole diameter,[

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square edged plate thickness,{

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-ratio,[ _ lab

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effective IJD,{ ] ab References 9 through 13 provide additional information concerning each of the valves Westingho procured for the B1 test program.

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E. Piping for ADS Vaives

'Ihe piping in which the ADS valves are installed is to be similar to the actual AP600 plant piping above the

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Figure 5.1 for the actual ADS valve / piping " ring" layout installed at the VAPORE facility.

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Common j

f Supply Valve inlet Piping Valve Outlet Piping Discharge Water I

Prrr 4.In.

8-In.

8-In.

4-In.

8-In.

8-in.

16.In.

Line From 4'

Pipe Sire (inches) 14 4

8 8

4 8

8 16 Pipe Seedule 160 160 160 160 80 80 80 80 Design Temp. (*)

680 680 680 680 600 600 600 485***

Design Pressure (psig) 2485 2485 2485 2485 1500 1500 1500 580***

"* Discharge piping pressure and temperature rating is based on expansion bellows rated for 580 psig (40 bar).

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Figure 5.1 ADS Phase (BI) Test Specification VAPORE Facility ADS "alve/ Piping Ring Layout I

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AUroMAnc DEPRESSURIT.ATION SYSTEM TEST SPECMCAMON 6.0 INSTRUMENTATION AND CONTROL 6.1 Process Instrumentation The individual instrumentation channels to be provided in the VAPORE facility have been developed with ENEA, ANSALDO and Westinghouse input, and based on the previous Phase A ADS test program (Reference 2). A listing of the process instruments and their locations is provided in Table 6-1 and are illustrated in Figures 1.1, 6.1, 6.2, and 6.3.

TABLE 6-1 AP600 ADS PilASE B TEST INSTRUMENTATION LIST Type of Device ID Function / Location Device Range TMET PT 4 P in the PRZ dome IT I W P downstr. PRZ 14" nozzle TMET

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TE 1 W T downstr. PRZ 14" nozzle TC LT 1 B L in the PRZ (fast response instr.)

TMET TDUT PE 2 W P upstr. VL1-1 (EDWARD 12" valve) l TC TE 2 W T upstr. VLI-1 PE 3 W P downstream VLI 1 TDUT l

TC l

TE 3 W T downstrearn FLI-l TDUT l

PE 17 W P body VL1-1 TC TE 4 W T upstr. VLI-2 (A. & M.12" valve)

TDUT i

FT 4 W P upstr. VLI-2 TC l

TE 5 W T downstr. VLI-2 l

TDUT PE5 W P downstr. VL1-2 TDUT f

PE 19 W P body VLI-2 TMET

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PT6W P ADS loop feedline TC TE 6 W T ADS loop feedline TDUT L

o PE 7 W P upstr. ADS stage 1 SP Reference Drawing: V AP 0001 DMJX 1508, Rev. 001 (Figure 1.1)

Legend: T = Temperature, P = Pressure, DP = Differential Pressure L = Level.1 MET = Transmitter, TDUT = Transducer TC = Thermocouple, SP = Spool Piece 6-1 u:\\np6000%6w.wpf:ltr060794 e

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AttroMATic DEPRESStC3ZATioN SYSTEM TEST SPECIf1 CATION TABLE 6-1 (cont)

AP600 ADS P11ASE B TEST INSTRU'.fENTATION LIST Type of Device Range Function / Location

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Device ID l-TC TE 7 W T upstr. ADS stage 1 SP TDUT PE 8 W P downstr. ADS stage 1 SP i

TDUT PE9W P downstr valve VAD 1 (4')

TC TE 9 W T downstr valve VAD-1 (4')

ThET PT 10 W P upstr. valve VAD-2 TC TE 10 W T upstr. valve VAD-2 l

TDUT PE 11 W P downstr. valve VAD-2

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TDUT PE 12 W P downstr. ADS stage 2 SP

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TC TE 12 W T downstr. ADS stage 2 SP 1

TDUT PE 21 W P body valve VAD-2 TC TE 13 W T upstr. valve VAD-3 f

TDUT PE 13 W P upstr. valve VAD-3 TDUT PE 23 W P body valve VAD-3

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TDUT PE 14 W P downstr. valve VAD 3 TDUT PE 15 W P downstr. ADS stage 3 SP TDUT l

PE 16 W P ADS loop dirbrge collector TMET FT 10 P in the Test Dnun ThET

.t FT 61 A P upstr. Flowmeter TMET)

PT 15 DP Flowmeter Oow range)

TMET FT 15 B DP Flowmeter (high range)

TMET FT 61 B P divbrge collect.

VAP 0001 DhUX 1508, Rev. 001 (Figure 1.1)

Reference Drawing:

T = Temperature, P = Pressure, DP = Differential Pressure Legend:

L = Level, ThET = Transmitter, TDUT = Transducer TC = Thermocouple, SP = Spool Piece 42 a:hp6000986w.wpf.Ib-060794

AttrOMATIC DEPRESSURIZA11oM SYS1EM TEST SPECIMCA110N TABLE 6-1 (cont)

AP600 ADS PHASE B TEST INSTRUMENTATION LIST Type of Device ID Function / Location Device Range

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TC j

TEI T in the discharge line E

l 1E 2 T in the 16" elbow of disch. line TC

.L TE 3 T in the disch. line (vertical pipe)

TC TC TE 6 T in sparger body TC TE 7 T in sparger "A" arm TC TE8 T in sparger "A" arm TC TE 9 T in sparger "A" arm TC TE 10 T in sparger "A" arm TC TE 11 T in sparger "A" arm TC TE 12 T in sparger "A" arm t

TC TE 13 T in sparger "B" arm i

TC TE 14 T in sparger "B" arm TC l

TE 15 T in sparger "C" arm TC TE 16 T in sparger """ arm TC TE 17 T in sparger "D" arm TC TE 18 T in sparger "D" arm TC's TE 19 to T in the pool water TE 30 PE 21 P in the disch. line TDW T

PE 1 P in the 16" curve of the disch. line TDUT

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PE 2 P in the sparger body TDUT j

j PE 3 P in the sparger "A" arm Reference Drawing: VAP 8000 DAIX 1001, Rev. 001 (Figure 1.1) l Legend: T = Ternperature, P = Pressure, TDUT = Transducer TC = Thermocouple a:Wa6..wpr:tb.o60794 63

AtTf0 MARC DEFRESSURIZAMON SYSnN TEST SPECIFICADO

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TABLE 6-1 (cont)

AP600 ADS PIIASE B TEST INSTRUMENTATION LIST Type of w

Device Range Function / Location Device ID TDUT I

PE 4 P in sparger "A" ann TDUT l

PE 5 P in sparger "A" arm TDUT PE 6 P in the sparger "B" arm TDUT

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PE 7 P in the sparger *C" arm TDUT PE 8 P in the sparger "D" arm TDUT PE 9 P in the pool bottom

'E PE 10 P in the pool bottom TDUT P in the pool (elev. - 1800 mm)

PE 11 TDUT PE 12 P in the pool (elev. - 1800 mm)

TDUT P in the pool (elev. - 1800 mm)

PE 13 TDUT P in the pool (elev. - 1800 mm)

PE 14 TDUT PE 15 P in the pool (elev. - 609 mm)

TDUT l

P in the pool (elev. - 4270 mm)

PE 16 TDUT f

P in the pool (elev. - 6700 mm)

PE 17 TDUT PE 18 P in the pool (elev. - 609 mm)

TDUT j

P in the pool (elev. - 4270 mm)

PE 19 TDUT l

PE 20 P in the pool (elev. - 6700 mm)

VAP 8000 DAIX 1001, Rev. 001 (Figure 1.1)

Reference Drawing:

T = Temperature, P = Preuure, TDUT = Transducer Legend-TC = 'Ibermocouple b~4 u:hp6000986w.wpf:1b40794

AtTrOMAMc DEPRESst'RIZAMON SYSTEM Trst SPEctncAMoM 6.2 Valve Instrumentation In addition to the above process instrumentation, ITI MOVATS has been contracted to install additional instrumentation on the installed valves. MOVATS will also provide two 16-channel data acquisition systems to monitor the baseline (initial) operation of the installed valves provided by Westinghouse for the 31 portion of this test (i.e.,4-inch globe, two 8-inch gates, and two 12-inch gate valves); and to monitor the operation of the 12-inch gate valves during the B1 tests.

De MOVATS valve monitoring service shall include (see Reference 8):

Baseline measurements (performed on all valves prior to any tests with flow and AP)

Stem thrust and torque during open and close strokes (includes seating and unseating)

Motor power (current and voltage measured) l Spring pack diT acements Continuous valve position vs. time 1

Measurements during test operations (perfonned for 12-inch gate valves only)

Stem thrust and torque during open/close strokes Motor power Spring pack displacements Valve position vs. time Open and close limit switch actuations Upstream and downstream pressure Valve bonnett and body pressure measurements The MOVATS valve DAS must interconnect with the process DAS for some valve signals including the valve limit switches actuations and pressure measurements. The MOVATS DAS data shall be transmitted to Westinghouse AP600 test engineering by the Westinghouse site engineer.

6.3 Other Instrumentation Eight (8) strain gages are to be mounted on sparger arms A and B at four positions, each corresponding to 0*,90*,180*, and 270* from vertical, in line with the arm axis, as was done in the Phase A test (see Reference 2).

Four (4) strain gages (XE-1 thru XE-4) are to be mounted on the sparger pedestal with a vertical and horizontal oriented gage placed at a 90* circumferential specing.

i Sixteen (16) strain gages are to be placed on the ADS valve / piping ring. He locations of the above strain gages are shown in Figure 6.4, as specified by Ansaldo.

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AUrOMATIC DEPRESSUR11ATION SYSTEM TEST SPECIFICATION in addition to the above; ENEA, Ansaldo, or Westinghouse may request that available additional strain gages andk r linear voltage displacement transmitters (LVDTs) be installed to monitor piping or structure re ponses during selected test runs.

"Ihree (3) accelerometers were installed on the 90* piping elbow just above the sparger for the Phase A In test (see Reference 2). These accelerometers are to be available for this B1 portion of the test.

addition, six (6) other accelerometers are available for installation, and are to be installed if deemed useful, based on the structural response of the piping / valves observed during the initial B1 test runs.

A boroscope which has the capability to measure the distances between objects and the depth of cracks or other imperfections shall be available to inspect (and record on video tape) valve internals. This boroscope will be provided by Westinghouse.

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Figure 6.1 ADS Phase (BI) Test Specification ADS Sparger and Sparger Pedestal Instrumentation I

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Figure 6.2 ADS Phase (BI) Test Specification VAPORE Quench Tank Instrumentation (Plan View) 6-8 I

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Figure 6.3-ADS Phase (B1) Test Specification VAPORE Quench Tank Instrumentation (Elevation View) 6-9 l

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Figure 6.4 ADS Phase (BI) Test Specification

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ADS Piping Strain Gauge Locations 1

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AmOMAMC DEPRESSURIZADON SYS1T.M TEST SPECUTCADON 7.0 DATA ACQUISITION A data acquisition system (DAS) shall be provided that includes the equipment necessary to monitor and transmit the output signals generated by the various instruments used both in the control and monitoring of the test loop.

A. DAS Components The DAS is taken to include those signa' amplifiers, signal conditioners, signal transmitters, signal converters (analog-to-digital and others that may be used), switch panels, interface electronics, computers, power supplies, displays (CRT, strip chart recorders, gages, etc.), power supplies, and interconnected wiring, as needed to accomplish the test.

B. Input Channels The DAS shall receive analog signals from various temperature and pressure sensors, flow meters, accelerometers, valve position indicators, and other instrumentation utilized for test operation and monitoring, and record them in a digital form. Shielded wiring shall be used for all signal input leads to minimize the pickup of noise in the signal. High frequency filters may also be used, where shown to be appropriate and agreed to by the test sponsor.

'Ihe test performer shall be responsible to assure that the DAS is capable of accepting and processin the range of output signals that can be generated by the various instmments that may be used during the course of testing.

C. Sampline Rates The sampling rate of the instruments by the DAS shall be set by the physical phenomena being monitored and the response time of the instrument itself. To mordtor rapidly changing or oscillating phenomena, rapid scanning rates are desired, while fewer scanning rates are acceptable for slower phenomena or slow response instmments. Thus, to provide for the efficient collection, storage, a handling of meaningful and useful data, the DAS may sample different instruments at different rates during the course of a test. The sampling rate requ: red for the piping, sparger, and quench tank pressure transducers is to be{ )amples per second.

D. On-Line Data Storare ne DAS shall have sufficient storage capacity in order to capture and store all digital data collected form a given test. The maximum duration of a test is not expected to exceed ]tInutes.

71 u%mes6mpfaao794 E

AtrioMAnc DEPRESSURIZATION Sys77.M TEST SPECFICATION Re data shall be stored by the DAS in engineering units (pounds per square inch or pounds per second of *F). The conversion from the actual instrument outputs (millivolts, milliamps, etc.) to engineering units shall be documented.

E. On-Line Display he DAS shall provide for the continuous on-line display of selected instruments or calculated te parameters before (pretest), during, and following (post-test) each test performed. In gen information displayed shall be sufficient as to allow the test loop operators to assess the followin Initial test loop conditions meet those specified.

No unexpected test events that might negate the test have occurred.

All data displayed on-line shall be in the appmpliate engineering units; temperature, pressur and quality, as applicable.

The on-line display shall be by CRT, and an echo to a print file for inclusion in day of test desirable.

l F. Test Validation ne DAS shall have the ability to perform a post test validation check on the test performed. In general, a valid test shall satisfy the following three criteria:

Sofficient instrumentation must be operable and recorded by the DAS to permit a mass balance and an energy balance to be calculated for the facility.

Sufficient instrumentation must be operable and recorded by the DAS to assure that the da needs addressed by the test are satisfied.

Test conditions experienced should reasonably matchpose called for in the test matrix. F

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Tthe specified pressure, MOV opening example, initial pressurizer pressure should be o

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times should{

f specified values.

To guide in determining test validity, a test validation " check list" shall be established. Fo l

such as desired flow or pressure histories, a plot showing the desired history, the history o during the test, and limits of variation about the desired history, may be an appropriate use in test validation. De check lists and associated plots shall be printed post-test, along with a l

summary of other instrument outputs that are determined to be critical to a successful te j

by the cognizant test engineer in assessing test validity.

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AttrohtATic DEPRESSUu2AMON SYSrE31 *ITST SPECrRCATION G. Data Transmittal Following post-test validation of the test, the test data shall be provided to the Westinghouse Electric Corporation on a magnetic medium (tape file, floppy disc, etc.). As a minimum, the data tape is to contain the following information:

Test Run File Header, containing the test mn ID, date, and other pertinent information.

Channel Assignment Table, associating instmments with specific DAS channels and identifying other information pertinent to instrument identification.

Calibration file, containing all infonnation necessary to account for shifts in zero settings and convert raw instrument outputs from volts to engineering units.

Data, all the data from one channel, presented one channel at a time.

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An end-of-file mark at the conclusion of the data for a given test.

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'Ihe specific format of the magnetic medium shall be approved by Westinghouse prior to the initiation of testing. Also, a " prototype" data tape, containing signals typical of those to be provided during testing shall be provided to Westinghouse at least 30 days in advance of the initial testing in order to assure that the data file can be read by equipment available to the test sponsor.

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AttrOMATic DEPRI3SURIZATION SYsnM TEST SPEcn1 canon 8.0 TEST OPERATION ne operation of the test facility shall be established and documented in test operating procedures.

j These test operating procedures are to be provided by ENEA, the testing organization, and submitte i

to Westinghouse for review and approval with the exception of test 8.lA below (see Section 10, j

Quality Assurance Requirements). Operating procedures shall be prepared for but not limited to t following tests:

8.1 Cold Pre-Operational Tests A. Valve Baseline Tests Each of the valves installed in the ADS test piping for the Phase B test program shall be stroked open and stroked closed at least three times each. These initial valve operdclose strokes shall be performed at ambient pressure and temperature conditions (no delta-P across the valve seats), after the valves have been instrumented.

The valves for which baseline valve stroke data is to be obtained are:

12-inch Edwards gate valve 12-inch Atwood & Morrill gate valve 4-inch Anchor-Darling globe valve 8-inch Anchor-Darling gate valve 8-inch Westinghouse gate valve Note, valve instrumentation and mer.:rement devices will be installed on each valve by ITI MOVATS (a Westinghouse subsidiary). ITI MOVATS will record and report the thrust / torque measurements as well as other pertinent valve information (Reference 8). Also,ITI MOVATS will supervise / perform these baseline valve tests, therefore ENEA procedures are not required.

B. Atwood & Morrill Valve Resistance Data As described in Section 8.3 below, the Atwood & Morrill (A&M) 12-inch gate valve will be set at a partially open position during blowdown tests where saturated water is taken from the bottom steam / water supply tank. In order to document the valve resistance at partially open positions, a c water, low pressure flow test is to be performed at the following A&M valve flow areas:

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in the steam / water supply tank.

These resistance tests are to be run at low pressure ENEA is to install a ternporary delta-P instrument actoss the A&M gate valve for these tests. The 8-1 uAap600%D986w.wpf:1b-060794

AttroMAT1C DEPRESsUR12NDON SYFrut Terr SPECIHCATION f

flowrate through the valve is to be determined by measuring the change d d by inserting a water level vs. time. The actual valve disk position is to be measured and recor e boroscope into each side of the valve body.

The boroscope observations should include measurement of any " free p stem and the valve disks. Also, an accurate method of physically verifying the a NOTE:

position is to be provided.

These tests are to be conducted by filiing the steam / water supply tank with cold 12-in. Edwards compressing air to provide the driving pressure. Flow is to be initiated by ope d d for at gate valve. Water / steam supply tank level vs. time

&M gate valve.

8.2 Facility Acceptance Tests d

ANSALDO has modified the VAPORE facility for ENEA to perform the ADS P d

t contract separate contract with ENEA. ANSALDO shall perform acceptance tests to ocume l

h completion. These tests shall be specified by ANSALDO/ENEA. For informat anticipated acceptance test includes:

Facility hydrotest(s).

Piping and support thermal response tests with both slow and fast heatup rate Moderate energy saturated water blowdown tests with high mass flowrates clo

!psig supply tank pressures.

leakage through the 12-inch valves shall be measured prior to and after cach NOTE:

ADS valve opening at high pressure which can be performed after inst ADS control valves (after completion of the B1 system performance tests).

8.3 ADS System Performance (B1) Tests The ADS performance tests will be perfortned with the 4-inch and 8-inch ADS fully closed in order to simulate a portion of the AP600 plant ADS opera ADS Stage 1 operation will be simulated with the 4-inch globe valve gate valves closed; 8-2 n: Nap 6000956w.wpf:1b-060794

AuroMcT1c DEPRESSIO!ZA110N SYsrITN Tarr SPECDICAMON ADS Stage 1 and 2 operation will be simulated with the 4-inch globe valve open and one of two 8-inch gate valves closed; ADS Stage 1,2 and 3 operation will be simulated with the 4-inch glob: and the two 8-inch gate valves open.

In addition, three different test facility arrangements will be utilized:

Blowdowns with saturated water from the bottom of the steam / water scpply tank to the ADS valve / piping ring (with no orifices to simulate the 4-inch gate or 8-inch globe valves) will be performed to obtain boun.11ng maximum mass flowrates at low fluid quality.

Blowdowns with saturated water from the bottom of the steam / water supply tank to the ADS valve / piping ring (with orifices simulating the minimum area of a 4-inch gate or 8-inch globe valve) will be performed simulating maximum valve resistances through the ADS and at expected flow rates and fluid qualities associated with ADS operation.

Blowdowns with saturated steam from the top of th: steam / water supply tank to the ADS valve / piping ring will be performed with orifices simulating the minimum area of a 4-inch gate or 8-inch globe valve. Rese test runs will provide the bounding minimum mass flowrates at high fluid quality.

The above described ADS simulations and facility arrangements are incorporated into Table 8.1 which specifies the ADS B1 test rnatrix.

The following major steps are to be incorporated into the test runs using saturated water from the bottom of the steam / water supply tank (Test runs B-1 through B-22).

The Edwards and Atwood & Morrill 12-inch gate valves are closed to isolate the steam / water j

supply tanks from the downstream piping.

De Atwood & Morrill (A&M) 12 inch gate valve is opened to the desired flow area. De distance from the bottom edge of the A&M valve seat ring to the bottom edge of the valve disks (both upstream and downstream) is to be verified using a boroscope.

he stem position determined above voould be recorded during the cold preoperational tests NOTE:

described in Section 8.1 above, so that boroscope inspections with the steam / water supply tank at l

hot /prnsudwd conditions are minimized /climinated.

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De steam / water supply tank is to be filled with metric tons of water and heated to the desired pressure noted in Table 8.1.

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AUTOMATIC DEPRESSURizATioN SysTIM TEST SPECinCATION He A&M valve is then pened to the desired flow area noted in Table 8.1.

he desired flow area is to be established based on the flow area vs. stem in Reference 10. De actual distance from the bottom inside edge of the valve NOTE:

i outside edge of the valve disks (both upstream and downstream disks) is to be ve i

l boroscope. This verification and the stem position shall be made as part of the i

ections when the tests described in Section 8.1 above, in order to minimize the need for boroscope nsp steam / water supply ^.ank is hot and pressurized.

De 4-inch and two 8-inch ADS valves are to be closed, and the piping from i di valve to the ADS valves is to be heated-up using steam from the supply tank. P draining of the piping will be required to remove condensed steam.

When the piping has been heated-up, drain and depressurize the piping 8.1.

and then open the desired ADS valves to open the ADS flowpaths specified He test run is to be initiated by opening the Edwards 12-inch gate valve. H to its full open position.

De test run is to be terminated by closing the 12 inch A&M valve fr position. The test is to be terminated such that the final supply tank wa of span.

He Edwards 12 icch valve is then to be reclosed to complete isolation o De test runs using saturated steam from the top of the steam / water supp f

d in the ADS Phase A test.

through B-26) are to be conducted in a manner similar t l

piping. However, this piping is to be drained and depressurized before ENEA steam opened. After the ADS valves are fully opened, the test can be initiated using isolation and control valves.

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AUTOMARC DEPRESSURIZAVON SYSTEM TEST SPECFICARON 9.0 TEST REPORTS AND DATA REQUIREMENTS ne test data is to be documented by means of three types of reports; a day of test report, a post-test facility report and a final test report.

A. Day of Ten Report All data collected from each test are to be transmitted to Westinghouse as soon as practical following completion of a test run as a Day of Test Report. This report shall include a brief summary of key information to judge the validity of the test.

B. Post-Test Facility Report Within one week of the Day of Test Report, a more complete test report shall be provided to Westinghouse. This report shall include:

A copy of the sign-off test procedure used in performing the test.

l A copy of the key instrument outputs to confirm the validity of the test.

Deviations and comments / observations pertinent to the performance of the test.

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l Westinghouse AP600 Test Engineering shall utilize the information in the Day of Test Report and Post-test Facility Report to assure the validity of the test and to provide the test data to appropriate organizations for analysis on a timely basis.

C. Final Test Report Upon completion of testing, the test performer shall prepare and submit a final test report to the test sponsor.

The Final Test Report will serve to summarize, compile, and formally complete the experimental activities of the program and shall include a description of the facility with final (as-built) drawings.

The required format of this report will be specified at a later date.

u:\\np600%D986w.wpf.Ib-060794 91

AttroMATIC DEPRESSURIZATION SYSTEM *thT SPECIFICA'noN 10.0 QUALITY ASSURANCE REQUIREMENTS Testing quality assurance shall confonn to ASME NQA 1-1989 edition through NQA-lb 1991 Addenda. As this is a safety related test, the Code of Federal Regulations title 10 Part 21 (10C also applies. To incorporate the requirements of NQA-1, the following measures shall be t detailed test procedure:

1. Provisions for ensuring that those performing the tests are qualified and trained in the quality assurance requirements of the test specification.
2. Provisions for ensuring that changes to the test procedure are reviewed and approved to the s extent as the originals.
3. Provisions for ensuring that the latest approved revision of the test procedure is used.
4. Provision for calibration of test equipment, traceable to recognized national standards.

standard exists, a description of the calibration method shall be included.

5. Provisions for verification and configuration control of computer software (if any) used or reduce data.
6. Provision for repolting and reconciling devisions 6m the approved test procedure.
7. Provisions (such as a signed checidist) for ensuring that test prerequisites are met. Test prerequisites include calibrated instrumentation. appropriate equipment, trained pe condition of test equipment and item (s) to be tested, suitable environmental conditions provisions for data acquisition.

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8. Provisions for ensuring that necessary monitoring is performed and that test conditions am maintained. (A test log containing periodic signed entrier that include any pertinent obs or information not captured elsewhere is recommended.)

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9. Documented eva7dation of test results by the test sponsor to ensure that test requiremen met
10. Identification in the test records of items tested, date of the test, instrumentation and da recorders, type of observation, results and acceptability, action taken in connection deviations, and person who evaluates the test results.
11. The testing organization shali verify and document that the instrumentation calibrat performed prior to testing. This documentation must be submitted to Westinghouse.

10-1 n:\\ap600\\09S6w.wpf:ltA60794

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