ML20085J263
| ML20085J263 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 06/15/1995 |
| From: | NEBRASKA PUBLIC POWER DISTRICT |
| To: | |
| Shared Package | |
| ML20085J262 | List: |
| References | |
| NUDOCS 9506220080 | |
| Download: ML20085J263 (19) | |
Text
__.
A functional test is the manual operation or initiation of a F.
Functional Test system, subsystem or component to verify that it functions within design tolerances (e.g. the manual start of a core spray pump to verify that it runs and that it pumps the required volume of water).
F.A Caseous Radwaste Treatment Svstem - A GASEOUS RADWASTE TREATMENT SYSTEM is any system designed and installed to reduce radioactive gaseous effluents by collecting primary coolant system offgases from the primary system and providing for delay or holdup for -
the purpose of reducing the total radioactivity prior to release to the environment.
Hot standby condition means operation with coolant G.
Hot Standbv Condition j
temperature greater than 212*F, system pressure less than 1000 psig, and the mode switch in "Startup/ Hot Standby".
Immediate means that the required action will be initiated as soon as H.
Immediate practicable considering the safe operation of the unit and the importance of the required action.
I.
Instrumentation 1.
Instrument Functional Test - Analog instrument functional test means the j
injection of a simulated signal into the instrument as close to the sensor as practical to verify the proper instrument channel response, alarm and/or initiating action.
Bistable channels - the injection of a simulated signal into the sensor to verify OPERABILITY including alarm and/or trip functions.
2.
Instrument Calibration - An instrument calibration means the adjustment, as necessary, of an instrument signal output so that it corresponds, within acceptable range, and accuracy, to a known value(s) of the parameter which the instrument monitors.
Calibration shall enccmpass the entire instrument including sensor, alarm /or trip functions and shall include the functional 3
test.
The calibration may be performed by any series of sequential, overlapping or total channel steps such that the entire channel is calibrated.
Calibration of instrument channels with resistance temperature detector (RTD) or thermocouple sensors shall consist of verification of operability of the sensing element, and normal calibration, of the remaining adjustable devices in the channel.
3.
Instrument Channel - An instrument channel means an arrangement of a sensor and auxiliary equipment required to generate and transmit a signal related 1:o the plant parameter monitored by that instrument channel.
4.
Instrument Check - An instrument check is the qualitative determination of acceptable operability by observation of instrument behavior during operr. tion.
This determination shall include, where possible, comparison of the instrument with other independent instruments measuring the same variable.
est o[
S.
%m. --runctional Test - A logic system funct f
relays and contac rom sensor to activated device to ere practicable, action ensure
. are operable per e., %
~
L_
go to completion; i.e.,
pumps will be started and va ves j
An action initiated by the protection system when a 6.
Protective Action limiting safety system setting is reached.
A protective action can be at a
channel or system level.
7.
Protective Function - A system protective action which results from the protective action of the channels monitoring a particular plant condition.
9506220080 950615 DR ADOCK 0500 8
-2 11/01/90
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k 6. LOGIC SYSTEM FUNCTI_0NALA LOGIC SYSTEM FUNCTIONAL TEST shall be a test jr
/
T of all logic components. (i.e., all relays and 31 contacts, trip units, solid state logic elements,
/
I etc.) of a logic circuit, from as close to the
(
sensor as practicable up to, but not including, the actuated device, to verify OPERABILITY.
The f
LOGIC SYSTEM FUNCTIONAL TEST may be performed by I
means of any series of sequential, overlapping, or i
total system steps so that the. entire logic system is tested.
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COOPER NUCLEAR STATION TABLE 4.2.B (Page 1)
CORE SPRAY SYSTEM TEST & CALIBRATION FREQUENCIES Instrument --
Item Item I.D. No.
Functional Test Freo.
Calibration Freo.
Check Instrument 1.
Reactor low Water Level NBI-LIS-72 A,B,C, & D Once/ Month (1)
Once/3 Months once/ Day, 2.
Reactor Low Pressure NBI-PS-52, A1,A2,C1, & C2 Once/ Month (1)
Once/3 Months None NB1-PIS-52, B & D 3.
Drywell liigh Pressure PC-PS-101, A,B,C, 6 D Once/ Month (1)
Once/3 Months None 4.
Core Spray Pump Disch.
CS-PS-44, A & B Once/ Month (1)
Once/3 Months
.None Press.
CS-PS-37, A & B Once/ Month (1)
Once/3 Months None-5.
Core Spray Pump Time Delay CS-TDR - K16,.A & B Once/ Month (1)
Once/Oper.
None Cycle (4) 4 6.
Emergency Bus Low Volt Relay 27X1 - IF & 1G' Once/Oper. Cycle N.A.
None o
27X2 --IF & IC Once/Oper. Cycle N.A.
None l
i 7.
Pump Disch. Line Low Press.
CM-PS-73, A & B Once/3 Months once/3 Months None i
Loeic (4) (6) 1.
Logic Power Monitor once// Months N.A.
N.A.
2.
Core Spray Initiation once// Months N.A.
N.A.
3.
Pump & Valve (Signal Override)
Once/F Months N.A.
N.~A.
Control p
e(,g-c
}
t N
t' 1
~
d COOPER NUCLEAR STATION TABLE 4.2.B (Page 3).
RHR SYSTEM TEST & CALIBRATION MtEQUENCIES Instrument i
Item Item I.D. No.
Functional Test Frea. Calibration Frea.
mock Lostic (4) (5) 18 l
1.
Logic Bus Power Monitor Once/(Months N.A.
N. A. '
2.
RHR Initiation Once/18 Months N.A.
N.A.
3.
RHR Pump & Valve Control Once/18 Months N.A.
N. A. '
i 6
i 1.,
!i i t.
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e w
e u
s_,
COOPER NUCLEAR STATION TABLE 4.2.B (Page 4)
HPCI TEST & CALIBRATION FREQUENCIES i
Functional Instrument Item Item I.D. No.
Test Freq.
Calibration Freq.
Check 1.
Reactor Low Water Level NBI-LIS-72, A,B,C, & D, #3 Once/ Month (1) Once/3 Months Once/ Day 2.
Reactor liigh Water Level NBI-LIS-101, (B & D #2)
Once/ Month (1) Once/3 Months once/ Day l
3.
liigh Drywell Pressure PC-PS-101 A, B, C, & D (7)
(7) None 4.
HPCI Turbine High Exhaust HPCI-PS-97 A & B Once/ Month (1) Once/3 Months None Press.
5.
IIPCI Pump Low Suction Press.
HPCI-PS-84-1 Once/ Month (1) Once/3 Months None i
6.
IIPCI Pump Low Discharge Flow IIPCI-FS-78 Once/ Month (1) Once/3 Months None 7.
IIPCI Low Steam Supply Press.
IIPCI-PS-68, A.B.C. & D Once/ Month (1) Once/3 Months None 8.
IIPCI Steam Line liigh AP HPCI-dPIS-76 Once/ Month (1) Once/3 Months None g
IIPCI-dPIS-77 Once/ Month (1) Once/3 Months None 9.
IIPCI Steam Line Space liigh IIPCI-TS-101 A.B.C. & D Once/ Month (1) Once/Oper. Cycle None Temp.
HPCI-TS-125, 126, 127, 128 102, 103, 104, RHR-TS-150,151,152,153,154, 155,156,157,158,159,160,161 h
10.
Emergency Cond. Stg. Tk. Low HPCI-LS-74 A & B Once/ Month (1) Once/3 Months None a
Level llPCI-LS-75 A & B once/ Month (1) Once/3 Months None 11.
Suppression Chamber High IIPCI-LS-91 A & B Once/ Month (1) Once/3 Months None Water Level 12.
IIPCI Cland Seal Cond. Ilotwell llPCI-LS-356 B once/ Month (1) Once/3 Months None Level llPCI-LS-356 A Once/ Month (1) Once/3 Months None 3
13.
IIPCI Control Oil Pressure Low IIPCI-PS-2787-H Once/ Month (1) Once/3 Months None liPCI-PS-2787-L Once/ Month (1) Once/3 Months None 14.
Turbine Condition Supr. Alarm IIPCI-TDR-K14 Once/ Month (1) Once/Oper Cycle None Actuation Timer 15.
Pump Disch. Line Low Press.
CM-PS-268 Once/3 Months Once/3 Months None 16.
IIPCI Turbine Stop Valve Hon.
IIPCI-LMS-4 Once/ Month N.A.
None 17.
Sup. Chamber HPCI Suction Viv.
IIPCI-LMS-2 Once/ Month N.A.
None 18.
IIPCI Steam Line High AP llPCI-TDR-K33, Once/ Month once/Oper. Cycle None
. Actuation Timer llPCI-TDR-K43 Once/ Month once/Oper. Cycle None Logic (4)(6) i 1.
Logic Bus Power Monitor Once/d'Honths H. A.,
c>
C; 2.
HPCI Initiation Once/( Months N.A.
C 3.
IIPCI Turbine Trip once/6' Months N.A.
os i
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l -
COOPER NUCLEAR STATION
' TABLE 4.2.5 (Page 5)
HPCI TEST & CALIBRATION FREQUENCIES Item Instrument-Item I.D. No.
Function Test Freq.
Calibration Free.
Check-I 4.
HPCI Aute Isolation
- 5. 'HPCI Aux. Oil Pump and Once/[ Months N.A.
HPCI Cland Steam Exhauster Once/( Months N. A. -
i 18 (z.vw'+)
h l
i I
m
-l COOPER NUCLEAR STATION t-
'l TABLE 4.2.B'(Page 6)
RCIC TEST & CALIBRATION FREQUENCIES Instrument Item Item I.D. No.
Functional Test Freq.
Calibration Freq.
Check Instrument Channels 1.
Reactor High Water Level NBI-LIS-101 A & C, #2 Once/ Month (1)
Once/3 Months once/ Day' 2.
Reactor Low Water Level 10A - K79 A & B 10A-Once/ Month (1)
N.A.
Once/ Day K80 A & B 3.
RCIC High Turbine Exhaust RCIC-PS-72, A & B Once/ Month (1)
Once/3 Months None Press.
4.
RCIC Low Pump Suction Press.
RCIC-PS-67-1 Once/ Month (1)
Once/3 Months None [
1 5.
RCIC Steam Line Space Excess RCIC-TS-79, A,B,C, & D Once/ Month (1)
Once/Oper. Cycle None ~
l Temp.
RCIC-TS-80, A,B,C, & D Once/ Month (1)
Once/Oper. Cycle None RCIC-TS-81, A,B,C, & D Once/ Month (1)
Once/Oper. Cycle None RCIC-TS-82, A,B,C, & D Once/ Month (1)
Once/Oper Cycle None 6
6.
RCIC Steam Line High AP RCIC-dPIS-83 Once/ Month (1)
Once/3 Months None RCIC-dPIS-84 Once/ Month (1)
Once/3 Months None
' h 7.
RCIC Steam Supply Press. Low RCIC-PS-87, A,B,C, & D Once/ Month (1)
Once/3 Months None 8.
RCIC Low Pump Disch. Flow RCIC-FIS-57 Once/ Month (1)
Once/3 Months None j
9.
Pump Disch. Line Low Pressure CM-PS-269 Once/3 Months Once/3 Months None 10.
RCIC Turbine Conditional RCIC-TDR - K9 Once/ Month (1)
Once/Oper. Cycle None I
Supv. Alarm Timer 11.
RCIC Steam Line High AP RCIC-TDR-K-12 Once/ Month once/Oper. Cycle None i
Actuation Timer RCIC-TDR-K-32 Once/ Month once/Oper. Cycle None Logic Systems (4)(6) e 1.
Logic Bus Power Monitor Once/( Months N.A.
2.
RCIC Initiation once/s Months N.A.
i 3.
Turbine Trip Once/dfMonths N.A.
t 4.
RCIC Automatic Isolation Once/fr Months N.A.
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- 2
CCCPER N1; CLEAR STATION TA3LE 4.2 B (Page 7)
ADS SYSTE'1 A':D LOW-LCW SET TEST & CALIBRATION FREQUENCIES Instrument Item Item I.D. No.
Functional Test Freq.
Calibration Freq.
Check Instruments 1.
ADS Inhibit Switch MS-SW-S3A & S Once/ Month (1)
N.A.
None 2.
Reactor Low Water Level NBI-LIS-83, A & B Once/ Month (1)
Once/3 Months once/ Day NBI-LIS-72, A,B,C, & D Once/ Month (1)
Once/3 Months once/ Day 3.
ADS Timer MS-TDR-K5 A & B Once/ Month (1)
Once/Oper. Cycle None 4
Low-Low Set (LLS)
NBI-PS-51, A,3,C, &D Once/ Month (1)
Once/Oper. Cycle None Loei: (a>(6) h 1.
ADS Control Power Moni:or Once//f Months N.A.
2.
ADS Actua: ion Once/// Months N.A.
3.
Lou-Low Set Logic Once/F Months N.A.
tta 6 pac o
E a
', 3
1 4.2. BASES (cont'd.)
The best test procedure of all those examined is to perfectly stagger the tests. That is, if the cast interval is four months, test one or the other I
channel every two months. This is shown in Curve No. 5.
The difference between cases 4 and 5 is negligible. There may.be other arguments, however, that more strongly support the perfectly staggered tests, including reduc-J tions in human error.
The conclusions to be drawn are these:
i 1.
A 1 out of n system may be treated the same as a single channel in terms of choosing a test interval and j
2.
more than one channel should not be bypassed for testing at any one time.
j The bases for the radiation monitors are contained in the section denoted Environmental / Radiological Effluents.
J M$6bY.
D The LOGIC SYSTEM FUNCTIONAL TEST for the Core and Containment Cooling j
systems demonstrate the OPERABILITY of the required initiation logic for specific channel.
The 18 month frequency is based on the need to a
{
perform this surveillance under the conditions that apply during a plant outage and the potential for an unplanned transient if the surveillance j
were performed with the reactor at power. Operating experience has shown j
that these components reliably pass the surveillance when performed at the 18 month frequency.
i
)
4, 1
i l
. 12/24/84
\\
a e
a e
q APPENDIX B 1
i 1
l 4
-s F.
Functional Test - A functional test is the manual operation or initiation to verify that it functions within-subsy(stem or componente.g. the manual start of a core spray pump to verify of a system, design tolerances that it runs and that it pumps the required volume of water).
F.A Caseous Radwaste Treatment System - A GASEOUS RADVASTE TREATMENT SYSTEM is j
any system designed and installed to reduce radioactive gaseous effluents by collecting primary coolant system offgases from the primary system and i
providing for delay or holdup for the purpose of reducing the total radioactivity prior to release to the environment.
G.
Hot Standby Condition - Hot standby condition means operation with coolant temperature greater than 212'F, system pressure less than 1000 psig, and the mode switch in "Startup/ Hot Standby".
H.
Immediate - Immediate means that the required action will be initiated as i
I soon as practicable considering the safe operation of the unit and the importance of the required action.
l I.
Instrumentation 1.
Instrument Functional Test - Analog instrument functional test means the injection of a simulated signal into the instrument as close to the sensor as practical to verify the proper instrument channel response, alarm and/or initiating action.
Bistable channels - the injection of a simulated signal into the sensor to verify OPERABILITY including alarm and/or trip functions.
An instrument calibration means the 2.
Instrument Calibration adj ustment, as necessary, of an instrument signal output so that it corresponds, within acceptable range, and accuracy, to a known value(s) of the parameter which the instrument monitors.
Calibration shall encompass the entire instrument including sensor, alarm /or trip functions and shall include the functional test.
The calibration may be performed by any series of sequential, overlapping or total channel steps such that the entire channel is calibrated.
Calibration of instrument channels with resistance temperature detector (RTD) or thermocouple sensors shall consist of verification of operability of the sensing element, and normal calibration, of the remaining adjustable devices in the channel.
3.
Instrument Channel - An instrument channel means an arrangement of a sensor and auxiliary equipment required to generate and transmit a signal related to the plant parameter monitored by that instrument channel.
4.
Instrument Check - An instrument check is the qualitative determination of acceptable operability by observation of instrument behavior during operation. This determination shall include, where l
possible, comparison of the instrument with other independent instruments measuring the same variable.
- A log (ic system functional test shall l
5.
Lozic System Functional Test i.e.,
all relays and contacts, l
be a test of all logic components I
trip units, solid state logic elements, etc.) of a logic circuit, from as close to the sensor as practicable up to, but not including, l
the actuated device, to verify operability. The logic system functional test may be performed by means of any series of sequential, overlapping, or total system steps so that the entire logic system is tested.
6.
Protective Action - An action initiated by the protection system
]
when a limiting safety s stem setting is reached.
A protective i
action can be at a channe or system level.
7.
Protective Function - A system protective action which results from the protective action of the channels monitoring a particular plant condition.
-2
.~
s COOPER NUCLEAR STATION TABLE 4.2.B (Page 1)
CCRE SPRAY SYSTEM TEST & CALIBRATION FREQUENCIES Instrument Item Item I.D. No.
Functional Test Frec.
Calibration Freo.
Check Instrument 1.
Reactor Low Water Level NBI-LIS-72, A,B,C, & D Once/ Month (1)
Once/3 Months Once/ Day 2.
Reactor Low Pressure NB1-PS-52, A1,A2,C1, & C2 Once/ Month (1)
Once/3 Months None NBI-PIS-52, B & D 3.
Drywell High Pressure PC-PS-101, A,B,C, 6 D Once/ Month (1)
Once/3 Months None 4.
Core Spray Pump Disch.
CS-PS-44, A & B Once/ Month (1)
Once/3 Months None Press.
CS-PS-37, A & B Once/ Month (1)
Once/3 Months None 5.
Core Spray Pump Time Delay CS-TDR - K16, A & B Once/ Month (1)
Once/Oper.
None Cycle (4) 6.
Emergency Bus Low Volt Relay 27X1 - 1F & 1G Once/Oper. Cycle N.A.
None 27X2 - IF & 1G Once/Oper. Cycle N.A.
None 7.
Pump Disch. Line Low Press.
CM-PS-73, A & B Once/3 Months Once/3 Months None 4
Lostic (4) (6) o l.
Logic Power Monitor Once/18 Months N.A.
N.A.
2.
Core Spray Initiation Once/18 Months N.A.
N.A.
3.
Pump & Valve (Signal Override)
Once/18 Months N.A.
N.A.
Control
5 COOPER NUCLEAR STATION TABLE 4.2.B (Page 3)
RHR SYSTEM TEST & CALIBRATION FREQUENCIES Instrument Item Item I.D. No.
Functional Test Freo.
Calibration Freo.
Check Loric (4) (6) 1.
Logic Bus Power Monitor once/18 Months N.A.
N.A.
l 2.
RHR Initiation Once/18 Months N.A.
N.A.
3.
RHR Pump & Valve Control Once/18 Months N.A.
N.A.
COOPER NUCLEAR STATION TABLE 4.2.B (Page 4)
HPCI TEST & CALIBRATION FREQUENCIES Instrument-Item Item I.D. No.
Functional Test Freo.
Calibration Frea.
Check 1.
Reactor Low Water Level NBI-LIS-72, A,B,C, & D, #3 Once/ Month (1)
Once/3 Months Once/ Day 2.
Reactor liigh Water Level NBI-LIS-101, (B & D #2)
Once/ Month (1)
Once/3 Months Once/ Day 3.
High Drywell Pressure PC-PS-101 A, B, C, & D (7)
(7) None 4.
IIPCI Turbine High Exhaust HPCI-PS-97 A & B Once/ Month (1)
Once/3 Months None Press.
5.
HPCI Pump Low Suction Press.
HPCI-PS-84-1 Once/ Month (1)
Once/3 Months None 6.
IIPCI Pump Low Discharge Flow HPCI-FS-78 Once/ Month (1)
Once/3 Months None 7.
HPCI Low Steam Supply Press.
HPCI-PS-68, A,B,C, & D Once/ Month (1)
Once/3 Months None 8.
HPCI Steam Line High AP HPCI-dPIS-76 Once/ Month (1)
Once/3 Months None HPCI-dPIS-77 Once/ Month (1)
Once/3 Months None 9.
HPCI Steam Line Space High HPCI-TS-101, A,B,C, & D Once/ Month (1)
Once/Oper. Cycle None.
Temp.
102, 103, 104, HPCI-TS-125, 126, 127, 128 RHR-TS-150,151,152,153,154, 155,156,157,158,159,160,161 10.
Emergency Cond. Stg. Tk. Low HPCI-LS-74 A & B Once/ Month (1)
Once/3 Months None u
level HPCI-LS-75 A & B Once/ Month (1)
Once/3 Months None 11.
Suppression Chamber High HPCI-LS-91 A & B Once/ Month (1)
Once/3 Months None Water Level 12.
HPCI Cland Seal Cond. Hotwell llPCI-LS-356 B Once/ Month (1)
Once/3 Months None Level HPCI-LS-356 A Once/ Month (1)
Once/3 Months None 13.
HPCI Control Oil Pressure Low HPCI-PS-2787-H Once/ Month (1)
Once/3 Months None HPCI-PS-2787-L once/ Month (1)
Once/3 Months None 14.
Turbine Condition Supr. Alarm HPCI-TDR-K14 Once/ Month (1)
Once/Oper. Cycle None Actuation Timer 15.
Pump Disch. Line Low Press.
CM-PS-268 Once/3 Months once/3 Months None 16.
HPCI Turbine Stop Valve Mon.
HPCI-IRS-4 Once/ Month N.A.
None.
17.
Sup. Chamber HPCI Suction Viv.
HPCI-IliS-2 Once/ Month N.A.
None 18.
HPCI Steam Line High AP HPCI-TDR-K33, Once/ Month Once/Oper. Cycle None Actuation Timer HPCI-TDR-K43 Once/ Month once/Oper. Cycle None Lonic (4)(6) 1.
Logic Bus Power Monitor once/18 Months N.A.
2.
HPCI Initiation Once/18 Months N.A.
3.
HPCI Turbine Trip Once/18 Months N.A.
s, COOPER NUCLEAR STATION TABLE 4.2.B (Page 5)
HPCI TEST & CALIBRATION FREQUENCIES
- Instrument-Item Item I.D. No.
Functional Test Freo.
Calibration Frea.
Check
-4.
HPCI Auto Isolation Once/18 Months N.A.
5.
HPCI Aux. Oil Pump and Once/18 Months N.A.
HPCI Cland Steam Exhauster
7-s COOPER NUCLEAR STATION TABLE 4.2.B (Page 6)
RCIC TEST & CALIBRATION FREQUENCIES Instrument Itu Item I.D. No.
Functional Test Freo. Calibration Frea.
Check Instrument Channels 1.
Reactor High Water Level NBI-LIS-101 A & C, #2 Once/ Month (1)
Once/3 Months Once/ Day-2.
Reactor Low Water Level 10A - K79 A & B 10A-Once/ Month (1)
N.A.
Once/ Day K80 A & B 3.
RCIC High Turbine Exhaust RCIC-PS-72, A & B Once/ Month (1)
Once/3 Months None Press.
4.
RCIC Low Pump Suction Press.
RCIC-PS-67-1 Once/ Month (1)
Once/3 Months None 5.
RCIC Steam Line Space Excess RCIC-TS-79, A,B,C, & D Once/ Month (1)
Once/Oper. Cycle None Temp.
RCIC-TS-80, A,B,C, & D Once/ Month (1)
Once/Oper. Cycle None RCIC-TS-81, A,B,C, & D Once/ Month (1)
Once/Oper. Cycle None RCIC-TS-82, A,B,C, & D Once/ Month (1)
Once/Oper. Cycle None 6.
RCIC Steam Line High aP RCIC-dPIS-83 Once/ Month (1)
Once/3 Months
.None RCIC-dPIS-84 Once/ Month (1)
Once/3 Months.
None 7.
RCIC Steam Supply Press. Low RCIC-PS-87, A,B,C, & D Once/ Month (1)
Once/3 Months None 8.
RCIC Low Pump Disch. Flow RCIC-FIS-57 Once/ Month (1)
Once/3 Months None v.
9.
Pump Disch. Line Low Pressure CM-PS-269 Once/3 Months once/3 Months None 10.
RCIC Turbine Conditional RCIC-TDR - K9 Once/ Month (1)
Once/Oper. Cycle None Supv. Alarm Timer 11.
RCIC Steam Line High AP RCIC-TDR-K-12 Once/ Month once/Oper. Cycle None Actuation Timer RCIC-TDR-K-32 Once/ Month Once/Oper. Cycle None Lostic Systems (4)(6) 1.
Logic Bus Power Monitor Once/18 Months N.A.
2.
RCIC Initiation Once/18 Months N.A.
3.
Turbine Trip Once/18 Months N.A.
4.
RCIC Automatic Isolation Once/18 Months N.A.
COOPER NUCLEAR STATION TABLE 4.2.B (Page 7)
ADS SYSTEM AND LOW-IDW SET TEST & CALIBRATION FREQUENCIES Instrument Item Item I.D. No.
Functional Test Freq. Calibration Freq.
Check Instruments 1.
ADS Inhibit Switch MS-SW-S3A & B Once/ Month (1)
N.A.
None
'2.
Reactor Low Water Level NBI-LIS-83, A & B Once/ Month (1)
Once/3 Months Once/ Day NBI-LIS-72, A,B,C, & D Once/ Month (1)
Once/3 Months Once/ Day 3.
ADS Timer MS-TDR-K5 A & B Once/ Month (1)
Once/Oper. Cycle None 4.
Low-Low Set (LLS)
NBI-PS-51, A,B,C, & D Once/ Month (1)
Once/Oper. Cycle None Lonic (4)(6) 1.
ADS Control Power Monitor Once/18 Months N.A.
2.
ADS Actuation Once/18 Months N.A.
~
3.
Low-Low Set Logic Once/18 Months N.A.
~
1 i;
4.2 BASES (cont'd.)'
The best test procedure of all those examined is to perfectly stagger: the tests.
That is, if the test interval'is four months, test one or the other channel every two months.
This is shown in Curve No.
5.
-The difference between Cases 4 and 5 is negligible.
There may be other arguments, however, that more strongly support the perfectly staggered tests, including. reductions in human error.
The conclusions to be drawn are these:
1.
A 1 out of n system may be treated the same.as a single channel in terms of choosing a test interval and 2.
more than one channel should not be bypassed for testing at any one time.
The bases for the radiation monitors are contained in the section denoted Environmental / Radiological Effluents.
The LOGIC SYSTEM FUNCTIONAL TEST for the Core and Containment Cooling systems demonstrate the OPERABILITY of the required initiation logic for a specific channel.
The 18 month frequency is based on the need to perform this surveillance under the conditions that apply during a plant outage and the potential for an unplanned transient if the surveillance were performed with the reactor at power. Operating experience has shown that these components reliably pass the surveillance when performed at the 18 month frequency.
1 o
LIST OF NRC COMMITMENTS l
ATTACHMENT 3 Correspondence No NLS950113 The following table identifies those actions committed to by the District in this
{
document.
Any other actions discussed in the submittal represent intended or plannad actions by the District.
They are described to the NRC for the NRC's information and are not regulatory commitments.
Please notify the Licensing Manager at Cooper Nuclear Station of any questions regarding this document or any associated regulatory commitments.
COMMITTED DATE COMMITMENT OR OUTAGE None PROCEDURE NUMBER 0.42 l
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