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Rev 8 to Pump & Valve Inservice Testing,Unit 1
	ML20126M645
Person / Time
Site:	McGuire
Issue date:	07/25/1985
From:	; DUKE POWER CO.
To:	;
Shared Package
ML20126M623	List: ML20126M619; ML20126M645; ML20126M659;
References
	PROC-850725, NUDOCS 8508010437
	Download: ML20126M645 (35)
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DUKE PokT.R COMPANY McGUIRE NUCIZAR STATION PUMP AND VALVE INSERVICE TESTING O

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RIVISION #8 G

8500010437 850725 PDR ADOCK 05000369 p

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DUXE FOWER COMPANT MCGUIRE NUCLEAR STATION FUMP INSERVICE TESTING PROGRAM ASME SECTION XI, SUBSECTION IWF The inservice testing of ASME Code Class 1, 2, and 3 pumps provided with an O

emergency power source will be tested as required by Section XI, Subsection IWF, of the ASME Boiler and Pressure Vessel Code 1930 Edition, escept where specific written relief has been granted by the Commission. A description of the proposed inservice testing program, as well as specific requests for relief from code requirements determined to be impractical, is described by j

the,following.

4 1.

The following are specific requests for relief from certain code requirements.

A)

IWP-4120 requires the full scale range of each instrument to be l

three times the reference value or less. This was changed from l

four times the reference value is the edition of Sectios XI that was in effect prior to unit licensias.

10CFR, Section 50.55a(g)(4) states that design provisions are excluded from the requirement to upgrade to subsequent editions of Secties XI. Since any cases where the three-times reference value criterios is not met would require design chsages in instrumentation, we will contiane to apply the four-times reference value criterion, as interpreted in B) bel.ow, for instrument accuracy evaluation.

B)

In several cases, fastrumentation does not meet the four times reference value criterios.

These cases predominantly involve suction pressure gauges where a larger range is required to accommodate varying conditions at the suction of the pump.

In all O

cases where the four-times reference value criterios cannet be est, an instrument error evaluation is performed to demonstrate that the overall accuracy of the differential pressure esasaremsat is within the limits established by IWP. These cases are RER discharge, nuclear service water suction, and control roes chilled water suction gases.

C) Table IWP-3100-1 establishes the parameters that are to be seasured. The previous edition of Section 11 specified that la a fined resistance system, either AP or Q was to be measured, not 4l both. The centrifugal charging pumps are testod using fixed resistanca l flow paths, with no flow indication provided. The Safety Injection Pumps are in a fixed resistance system that does 8

have a flow gauge available, but unnecessary radiation exposure and manpower is required to measure the flow.

Based on the design 5l change esclusion provided by 10CTR50.55a(s)(4), we will continue to

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spply the criterios that it is not required to measure flow in a fixed resistance system. The Residual Heat Removal Pumps are in a fixed resistance system that does have a flow gauge available. There is no way to adjust flow in the system and the gauge is not suffi-5 ciently accurate at low flows to provide a precise indication of flow.

For these pumps, a flow will be recorded but will not be used for comparison to any reference values.

O D) Table IWP-4110-1 states that vibration measurement should have an 4

accuracy of i 5%. McGuire has no permanently installed vibration instrumentation.

The portable instruments used to measure vibration have an uncertainty of i 112.

McGUIRE - UNIT 1 I.1-1 Revision 8

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II. The following Safety Class 1, 2, and 3 pumps (See Attachment #1 for specific safety class and available instrumentation) will be tested in accordance with the intent of Subsection IWP of the ASME code:

NUCLEAR SERVICE WATER PUMPS (IA, IB)

CONTAINMENT SPRAY PUMPS (IA, IB)

SAFETY INJECTION PUMPS (IA, IB)

MOTOR-DRIVEN AUX. FEEDWATER PUMPS (IA, IB)

TURBINE-DRIVEN AUX. FEEDWATER PUMP (NO. 1)

CENTRIFUGAL CHARGING PUMPS (IA, IB)

COMPONENT COOLING PUMPS (IA1, IA2, IB1, 1B2)

RESIDUAL HEAT REMOVAL PUMPS (IA, IB)

III. The following Safety Class 1, 2, and 3 pumps (See Attachment #1 for specific safety class and available instrumentation) will be tested in accordance with the intent of Subsection IWP, except for the request for relief for the specific requirements determined to be impractical as described below.

A) PUMP:

CONTROL AREA CHILLED WATER PUMPS (CRA-P-1, CRA-P-2)

SAFETY CLASS:

3 FUNCTION:

To provide chilled water to air handling units supplying control area air conditioning TEST REQUIREMENTS:

1.

Measure pump bearing temperature during inservice testing.

2.

Annually run pumps until bearing temperatures stabilize.

BASIS FOR RELIEF:

There is no instrumentation installed to measure bearing temperature, and no meaningful data can be obtained from bearing housing surface temperature measurements.

ALTERNATE TESTING:

The inservice testing of the Control Area Chilled Water Pumps will be in accordance with the intent of Subsection IWP except that bearing temperature will not be monitored and subsequently the pumps will not be run annually until bearing temperature 4

stabilizes.

IV. The following Safety Class 1, 2, and 3 pumps are provided with insufficient instrumentation to perform any meaningful testing in accordance with the intent of Subsection IWP and therefore the following alternate testing methods, as well as requests for relief from compliance with Subsection IWP, are described by the following.

O McGUIRE - UNIT 1 I.1-2 Revision 4

SAFETY RELATED CLASS 1, 2 3 PUMPS PROVIDED WITH AN 2

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(NS) 2 QU NR X

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X MC-1563-1.1 4 l Besidual Neat Removal Pumps (IA, IB)

(ND) 2 QU NR X

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X(3)

X(2)

X MC-1561-1.0 l

8l Safety injection Pumps (IA,13)

(MI) 2 QU NR X

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M/D Aux. Feedwater Pumps (IA, 15)

(CA) 3 MD NR X

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X(1)

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X MC-1592-1.1 T/D Aux. Feedwater Pump (No. 1)

(CA) 3 MD X

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X MC-1592-1.1 Cent. Charaina Pumps (IA, 1B)

(NV) 2 QU NR X

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X MC-1554-3.1 Component Coolina Pumps (IA1, IA2, 1B1, 1B2)(KC]

3 QU NR X

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X MC-1573-1.0

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4 l Control Area Chilled Water Pumps (CRA-P-1,2)(YC]

3 QU NR X

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X MC-1618-1.0 l

D/G Fuel Oil Transfer Pumps (IA, IB)

(FD) 3 QU NR X

X(1)

X MC-1609-3.0 D/G Room Sump Pumps (IA2, 1A3, 182, IB3)(WM) 3 QU NR X

MC-1609-7.0 X

X(1) 5 Standby Makeup Pump (1)(NV)

NS QU NR MC-1554-1.3 MUTES 4 l 2.

Vibrat. ion to be measured with portable instrumentation (Accuracy +_ 11%).

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Pump contains no bearings, but is close coupled, therefore motor bearing will be monitored.

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3.

Pump is close coupled, therefore motor lubricant level will be observed.

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No instrumentation is installed to measure bearing temperature.

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LEGEle X - Instrumentation MO - Monthly QU - Quarterly

- - Instrumentation not available NR - Not required for IWP Compliance

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5lNS-NonSafetyRelated I.1-4 McCUIRE - UNIT I Revision 8

DEFINITIONS OF TESTING REQUIREMENTS AND ALTERNATIVES p

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Cold Shutdown (CS)

Testing will be perforned when the unit is in a cold shutdown (Mode 5) whose planned length is of suff!cient duration to establish necessary test conditions and to perform the test.

In the case of frequent shutdowns, the testing will not be performed more than one per three (3) months.

Testing will commence as soon as the cold shut-4 down condition is achieved but not later than 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> after shutdown, and continue until complete or the plant is ready to return to power.

Completion of all valve testing is not a prerequisite to return to power.

Any testing not completed at one cold shutdown will be per-formed during any subsequent cold shutdowns that may occur before refueling to neet the code-specified testing frequency.

Cycle aad Time (CT)

Valve will be tested to verify that its stroke time is less than the maximum allowable stroke time specified by McGuire Nuclear Station.

Leak Test (LT)

Valve will be tested to verify that the seat leakage is limited to a specific maximum amount.

p) 11ovement Test (MT)

Valve will be tested to verify that the valve is

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operable and/or the valve moves to the position required to fulfill its purpose. No timing is involved.

Quarterly (Q)

Testing will be performed at least once per three (3) months.

Refueling Outage (RF)

Testing will be performed when the unit is shut down for refueling (Mode 6).

Safety valves will be tested periodically per the testing schedule defined in ASME Subsection IWV-3510.

Refueling Outage (RF*)

Valve will normally be tested during refueling outages, however, testing is not required more often than once per 24 months per Appendix J to 10CFR50.

Refueling Outage (RF#)

Valve will normally be tested on a rotating basis via a sample valve diassembly program (1 valve from a group of identical valves under similar 8

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.

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Setpoint (SP)

Valve will be tested to verify that it will relieve pressure at its specified setpoint.

McGUIRE - UNIT 1 11.3-1 Revision 8

3 GENERAL RELIEF Ol 5 l I.

TEST REQUISEMENT:

Perform trend analyses on category A and B valves as described in IW-3417(a).

BASIS FOR RELIEF:

Irend analyses performed on rapid acting valves does not give reliable indication of valve stroke time deterioration.

TESTING ALTERNATIVEL Trend analysts will not be performed on valves that normally oparate with cycle times of~1est than 5 seconds. Maistanance viu be initiated'if valve time 4

exceeds max. limit.

II.

TEST REQUIREMENT:

Measure the full-stroke time for vaies requiring cycle time test as defined in IW-3413. ;

BASIS FOR RELIEF:

McGuire's Operator Aid Computer and Portable Valve Timers operate by measuring the time between limit switch operations, rather than from the initiation of the actuating signal. The only way to tirae the valve using the initiation;Jignal is through some manual means..such as a stopvacch.

It is felt that 3

more consistent and repeatable results can be obtained by automated timing of the valve from limit switch to limit switch.

TESTING ALTERNATIVE:

Valves will normally be times from limit switch to limit switch.

In cases where this is not practical, timing will be manually done from iniciating siga.l.

III. TEST REQUIRDCNT:

Leak rate test Category A valves in accordance with IW-3420.

BASIS FOR RELIEF:

McGuire Tech Specs require leak rate testing in 3

accordance with 10CFR50 Appendix J.

The Tech Specs establish the required acceptance criteria,.which.is more restrictive than that required by IW.

In o.tdar to eliminate redundant paperwork, all valve sleak ryte -

l testing will be conducted as per Appendix J.

i TESTING ALTERNATIVE:

Category A valves will be leak tested in accordanca i

with 10CFR50 Appendix J.

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VALVE:

ICA-20, ICA-27, ICA-32 CATEGORY:

B CLASS:

C FUNCTION:

Maintains minimum flow for Auxiliary Feedwater Pumps.

l TEST REQUIREMENT:

Full stroke exercise and stroke time quarterly BASIS FOR RELIEF:

This valve automatically regulates to maintain the minimum flow through the pump by monitoring the flow on the suction of the pump.

There are not sufficient manual controls on this valve to permit the desired testing.

These valves will operate during testing of the pump and their operability will be verified then.

ALTERNATE TESTING: These valves will be full stroke exercised quarterly and stroke timed during ESF testing.

O O

McGUIRE - UNIT 1 II.6-9

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MC-1592-1.1 O

VALVE:

ICA-165, ICA-166 CATEGORY:

C CLASS:

C 4

FUNCTION:

Prevents backflow from Aux. Feedwater System to Nuclear Service Water System TEST REQUIREMENT:

Full stroke exercise quarterly BASIS FOR RELIEF:

Flow cannot be put through these valves because this would contaminate the aux. feed system with raw water.

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 8

af ter two consecutive refueling outages. Failure of one valve to properly full stroke during a refueling outage will result in the remaining valve being disassembled and full stroked during that outage.

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McGUIRE - UNIT 1 11.6-10 Revision 8

1 i

SYSTEM:

CONTAINMENT SPRAY FLOW DIAGRAMS:

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VALVE:

INS-30, INS-33, INS-16, INS-13, INS-46., INS-41 CATEGORY:

C CLASS:

B FUNCTION:

Open on flow from the Containment Spray Pumps.

TEST REQUIRD!ENT: Verify proper valve movement once per three months, IWV-3522.

BASIS FOR RELIEF: Full stroke exercising of these check valves is not practical since there is no external indication of disk movement. Full stroke exercising would require for the pumps and spray nozzles to be activated which would 7

require a large scale clean up effort. Provisions for disassembly of these 8 inch valves are not installed, thus subjecting personnel to an extreme hazard due to the valves location up near the containment dome.

ALTERNATE TESTING: These valves will be tested during refueling outages by partial stroke exercising the valves using air.

McGUIRE - UNIT 1 II.14-4 Revision 7 O

MC-1563-1.0 VALVE:

INS-21, INS-4 CATEGORY:

C CLASS:

B FUNCTION:

Prevent flow path from the Containment Recirculation Sump to the FWST.

TEST REQUIREMENT:

Verify proper valve movement once per three months.

4 BASIS FOR RELIEF:

Full stroke exercising with flow would require spraying the reactor building.

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 8

to properly full stroke during a refueling outage will result in the remaining valve being disassembled and full stroked during that outage. Valves will be partial stroked quarterly.

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II.14-5 McGUIRE - UNIT 1 Revision 8 i

MC-1593-1.0 YY 8

VALVE:

ISM-1AB, ISM-3AB, ISM-5AB, ISM-7AB CATEGORY:

B CLASS:

B 8l FUNCTION:

Main Steam Isolation Valves (MSIV's).

l TEST REQUIREMENT:

Cycle and Time Valves Quarterly.

BASIS FOR RELIEF:

ISM-1, 3, 5, and 7, MSIV's, cannot be full stroke exercised during power operation, because closure f these valves would result in unit shutdown. The 8

plant Tech. Specs. do not permit isolation of a steam generator. Hot shutdown conditions are required to exercise isolation valves because of valve design.

ALTERNATE TESTING: These valves will be partially stroked quarterly while in M des 1, 2, or 3.

These valves will be full stroked 8

and timed at hot shutdown conditions either prior to or after a cold shutdown.

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McGUIRE - UNIT 1 11.26-3 Revision 8

MC-1593-1.0 O

VALVE:

ISM-9AB, ISM-10AB, ISM-llAB, ISM-12AB CATEGORY:

B CLASS:

B FUNCTION:

Main Steam Isolation Valve Bypass Valves (MSIV Bypass Valves).

TEST REQUIREMENT:

Cycle and Time Valves Quarterly.

BASIS FOR RELIEF:

ISM-9, 10, 11, and 12, MSIV Bypass valves, can be full stroke exercised quarterly. However, these valves can-not be timed at this frequency since its operation is done utilizing a manual loader.

ALTERNATE TESTING: These valves will be full stroked quarterly and will be full stroked and timed either in hot shutdown or cold shutdown conditions.

O O

McGUIRE - UNIT 1 11.26-4 Revision 8 New Page

i 1

MC-1574-4.0 N

4 VALVE:

IRN-276A, IRN-277B CATEGORY:

A CLASS:

B FUNCTION:

Provides containment isolation.

TEST REQUIREME.iT:

Cycle and time valve every three months.

BASIS FOR RELIEF:

These valves must remain open to maintain the cooling water flow path for the Reactor Coolant Pump Motor Air Coolers.

If one of these valves were to fail in the closed position during testing, the flow would be restricted.

This action could result in damage to the 8l Reactor Coolant Pump Motors.

l ALTERNATE TESTING: These valves will be tested during cold shutdowns.

O O

McGUIRE - UNIT 1 II.31-15 Revision 8

MC-1574-4.0 O

VALVE:

1RN-42A CATEGORY:

B CLASS:

C FUNCTION:

Isolates Nuclear Service Water System Non-essential Header.

TEST REQUIREMENT:

Cycle and time valve every three months.

BASIS FOR RELIEF:

Failure of this valve in the closed position during 8

l testing would inhibit cooling flow to the charging pump.

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This action could result in damage to the equipment served by these heat exchangers. This equipment includes the PD 4

charging pump and the computer room A/C.

ALT 12NATE TESTING: This valve will be tested during cold shutdowns.

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McGUIRE - UNIT 1 II.31-16 Revision 8

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i4

.i MC-1562-1.0 VALVE:

INI-15, INI-354, INI-17, INI-347, INI-19, INI-348, INI-21, INI-349 j

CATEGORY:

C CLASS:

A 8

l FUNCTION:

Provides safety injection flow path.

l TEST REQUIREMENT:

Full stroke exercise quarterly.

BASIS FOR RELIEF:

Full or partial stroke during power operation would result in thermal shock to injection nozzles.

Valve cannot be stroked during shutdown due to possible low temperature overpressurization.

ALTERNATE TESTING: Valve will be full stroked at refueling.

O O

McGUIRE - UNIT 1 II.35-14 Revision 8

MC-1562-1.0 O

VALVE:

INI-9A, 1NI-10B CATEGORY:

B CLASS:

B FUNCTION:

Isolate NV Charging Pumps discharge from the safety injection lines.

TEST REQUIREMENT:

Cycle time quarterly BASIS FOR RELIEF:

Opening either of these valves would increase the charging flow into the Reactor Coolant System, resulting in an increase of pressure and a rapid change in the boron concentration.

This would create a transient and a possible shutdown.

ALTERNATE TESTING:

Valve will be cycle timed at cold shutdowns.

i 1

l i

McGUIRE - UNIT 1 II.35-14a Revision 8 New Page

J MC-1562-1.0 e-~S

\\m /

1 VALVE:

INI-12

. CATEGORY:

C CLASS:

B 8

l FUNCTION:

Provides safety injection flow path.

I TEST REQUIREMENT:

Full stroke exercise quarterly.

BASIS FOR RELIEF:

Full or partial stroke during power operation would result in thermal shock to injection nozzles. Valve cannot be stroked during shutdown due to possible low temperature overpressurization.

ALTERNATE TESTING:

Valve will be full stroked at refueling.

O McGUIRE - UNIT 1 II.35-15 Revision 8

MC-1562-2.0 O

VALVE:

INI-430A, 1NI-431B CATEGORY:

B CLASS:

B FUNCTION:

Supplies air to low pressure PORV's during blackout.

TEST REQUIREMENT:

Cycle time quarterly.

BASIS FOR RELIEF:

Valves are interlocked closed when RCS temperature is above 300 *F.

ALTERNATE TESTING: Valves will be cycle timed at cold shutdown.

i l

l McGUIRE - UNIT I II.35-16

O 4

MC-1562-3.1 VALVE:

1NI-183B CATEGORY:

B CLASS:

B FUNCTION:

Isolates ND flow to the hot legs.

TEST REQUIREMENT:

Cycle and time valve quarterly.

BASIS FOR RELIEF:

The valve is normally aligned for safety injection with power removed, as required by McGuire Technical Specification 4.5.2.

Cycling the valve with the plant in operation requires that the power be restored to the valve and moved from the event-initiation position. The valve is required for align-ment for hot-leg recirculation following an accident.

It is not required to automatically actuate on initiation of a safety event.

The past test history of the valve is very good.

ALTERNATE TESTING:

Cycle and time the valve at cold shutdown.

4 McGUIRE-UNIT 1 II.35-30c

\\

Revision 6 New Page

MC-1562-4.0 O

VALVE:

INI-248, 1NI-249, 1NI-250, 1NI-251, 1NI-252, INI-253 CATEGORY:

A, C CLASS:

A FUNCTION:

Open when Reactor Coolant System pressure decreases below 1500 psig during accident conditions.

TEST REQUIREMENT:

Verify valves open on flow from upper head injection accumulator.

BASIS FOR RELIEF:

The pressure in the UHI accumulator (1500 psig) is not sufficient to open the valves into the Reactor Coolant System (2235 psig). At cold shutdown, the 4

high velocity water could cause damage to reactor 1

internals.

This, also, could cause low temperature overpressurization.

ALTERNATE TESTING:

At least one of the two valves 1NI-248 and 1NI-249 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.

8 Failure of one of these two valves to properly full stroke during a refueling outage will result in the remaining valve being disassembled and full stroked during that outage.

INI-250, 1NI-251. INI-252, and 1NI-253 will be full stroked manually at refueling.

O McGUIRE - UNIT 1 II.35-31 Revision 8

I SYSTEM:

STREAM GENERATOR BLOWDOWN RECYCLE FLOW DIAGRAMS:

MC-1580-1.0 O

O McGUIRE - UNIT 1 11,37 1

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