ML20206T966
| ML20206T966 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 05/02/1985 |
| From: | Brungardt R, Jobe S NEBRASKA PUBLIC POWER DISTRICT |
| To: | |
| Shared Package | |
| ML20206T643 | List: |
| References | |
| 6.3.19.1, TAC-54682, NUDOCS 8607080273 | |
| Download: ML20206T966 (9) | |
Text
m LUUPtK t.ULLtan ble.l a ua Urtndi10Nb MADbdL SURVEILLAMCE PROCEDURE 6.3.19.1 SGT OPERABILITY TEST l
I.
PURPOSE A.
To provide a detailed instruction for station personnel to perform an operability test of the standby gas treatment (SGT) system to operate each circuit with the heaters on, to assure that the system drain loop seals are filled, to perform an operability test of the bypass valves, and to perform an o,perational test of damper AD-R-1C.
II.
DISCUSSION
~
A.
The SGT system is one of the reactor safeguard systems designed to maintain a negative pressure on the Reactor Building.and to filter any release of the Reactor Building atmosphere to the env, irons.
III.
REFERENCE MATERIAL A.
USAR.
1.
Volume II,Section V, Subsection 3.3.4.
2.
Volume VI,Section III, Subsection 3.17.
B.
Flow Diagrams.
1.
B & R Drawing 2020; Reactor Building H & V.
2.
B & R Drawing 2022; Primary Containment Cooling and Nitrogen Inerting.
3.
B & R Drawing 2037; SGT and Off Gas Filters.
4.
B & R Drawing 2049; Condensate Supply System, Sheet 4.
C.
Vendor Manuals.
1.
CVI Corporation Manual 69-3-1.
D.
Electrical Diagrams.
1.
B & R Drawing 3006; Auxiliary One Line Diagram.
2.
B & R Drawing 3030; Control Elementary Diagram.
3.
-B & R Drawing 3038; Control Elementary Diagram.
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Pages
4.
B & R Drawing 3039; Control Elementary Diagram.
5.
3 & R Drawing 3065; Control Elementary Diagram.
IV.
PREREQUISITES A.
System lined up for operation and in the standby status as per System Operating Procedure 2.2.73,Section VII.A.
B.
No other testing or maintenance in progress which would affect the performance of this test.
V.
LIMITATIONS A.
Surveillance Requirements - Technical Specifications.
1.
Operate each circuit with heaters on greater than or equal to 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> every month as per Technical Specifications *Section 4.7.B.2.d.
2.
Check the system drain loop seals filled quarterly as per Techhical Specifications Section 4.7.B.3.
3.
Operate the manual bypass valves once per cycle as per Technical Specifications Section 4.7.B.4.b. ~
B.
Administrative Limits.
1.
All discrepancies shall be recorded in the Shif t Supervisor's log.
2.
Attachment "A" shall be used to record the, test and filed as part of the station records.
3.
All testing shall be coordinated with the Control Room Operator.
4.
Any jumpers installed, fuses pulled, leads disconnected, relays blocked or breaker test blocks installed, during the performance of this procedure, which are not specifically covered by this proce-dure, shall be recorded in the jumper log.
5.
Operational check of damper AD-R-1C. will be checked once per cycle.
V1.
PRECAUTIONS A.
Do not use a flashlight in the SGT Room. To do so could set off the fire system. Use a finger to check for flow from the loops secle.
B.
Be sure that the train is shut down before cycling the manual bypass valves.
C.
Crack the supply valves only enough to get a small flow. Excess flow could cause water to back up into the train.
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6.3.19.1 Date Revision 13 Page 2
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II.
TEST EQUIPMENT A.
Surgeon's gloves for'Section VII.C. (quarterly).
VII
I. PROCEDURE
Note: Section C.
(quarterly) and Sections D. and E.
(once/ cycle) tests when due (scheduled by the Surveillance Coordinator), will be done on the same day that the monthly test is performed.
A.
SGT Train A (B) Monthly Test.
1.
Inform the Operator on panel 9-5 of the intent to perform an operability test of the SGT system.
2.
Assure that proper indication is displayed on the safety aystem status panel.
3.
Start the desired fan as per System Operating Procedure 2.2.73,.
4.
Open AD-R-1C.
5.
Turn the associated system heater on HIGH nd record the reading of the elapsed time meter on Attachment "A".
6.
This step only needs to be done for one train and only monthly.
Caution: If SGT flow reduction is indicated, immediately shut off demineralized water to loop seal and take action required to clear blockage.
Reduction of S,GT flow indicates water in the SGT flow path, Open DW-90 (off gas filter building supply shutoff).
a.
b.
Open DW-91 (SGT discharge pipe drain loop seal maintenance).
c.
Monitor and verify that sump pump Z auto start occurs without-reduction of SGT flow.
d.
Close DW-91.
Verify that sump pump Z stops.
e.
f.
Open DW-338 (SGT discharge pipe drain loop seal maintenance spare).
g.
Monitor and verify that sump pump Z auto start occurs without reduction of SGT flow.
h.
Close DW-338.
1.
Close DW-90.
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Leave the fan and heater on for greater than or equal to 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br />.
8.
Return the heater to the OFF position and allow the fans to run for approximately 5 minutes to cool down the charcoal filters, a
9.
Record the reading of the elapsed time meter on Attachment "A".
10.
Close AD-R-1C, then return the switch to AUTO.
11.
Shut down the SGT system that is being tested as per System Oper-ating Procedure 2.2.73.
Hang a tag on the preferred fan control switch (as noted by the Surveillance Coordinator).
The preferred train will be the one next due for carbon filter analysis.
Note: Delay Steps 13. and 14. until Section C. and D. are complete j
if performance of these two sections is required.
12.
Return the heater control switch to AUTO.
13.
Return the safety ' system status panel to normal.
14.
Inform the Operator on panel 9-5 that the test is complete.
B.
SGT Train-B (A) Monthly Test.
Note: Repeat the above steps (all but Step 6.) for this section.
C.
SGT A And B Moisture Separator Drain Loop Seal (Quarterly).
Note:
Section_C. needs to be done only as sched,uled by the Surveillance Coordinator.
t 1.
Verify that the following valves closed in the SGT Room.
1 CM-640 (SGT Room equipment drains supply).
a.
b.
CM-641 (SGT loop seals shutoff).
9 CM-642 (SGT 1A moisture separator drain loop seal supply).
c.
d.
CM-643 (SGT 1A train drains loop seal supply).
CM-644'(SGT 1B moisture separator drain loop seal supply).
e.
f.
CM-645 (SGT 1B train drains loop seal supply).
2.
Open CM-84 (SGT Room loop seal maintenance supply) located on the 958' level.
3.
Open CM-641 (SGT loop seals' shutoff).
0 procsdure Number 6.3.19.1 Date._fk h["N' b Revision 13 Page 4
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Caution:
a.
Crack the loop seal supply valves only enough to'get a small flow.
b.
Wear a surgeon's glove to protect from contamination of finger while checking for water flow from the loop seals.
4.
Crack CM-643 (SGT 1A train drains loop supply) open until the loop is full.
5.
Close CM-643 (SGT 1A train drains loop seal supply).
6.
Close SGT-12 (SGT 1A moisture separator drain).
7.
Crack CM-642 (SGT 1A moisture separator drain loop seal supply) open until the loop is full.
8.
Close CM-642 (SGT 1A moisture separator drain loo'p seal supply).
9.
Open SGT-12 (SGT 1A moisture separator drain).
10.
Crack CM-645 (SGT IB train drains loop seal supply) open until the loop is full.
11.
Close CM-645 (SGT 1B train drains loop seal supply).
12.
Close SGT-13 (SGT IB moisture separator drain).
13.
Crack CM-644 (SGT 1B moisture separator drain loop seal supply) open until the loop is full.
14.
Close CM-644 (SGT 1B moisture separator drain loop seal supply).
15.
Open SGT-13 (SGT 1A moisture separator drain).
16.
Cloae CM-641 (SGT loop seals shutoff).
17.
Close CM-84 (SGT Room loop seal maintenance supply).
D.
SGT A And B Manual Bypass Valve Operability (Once/ Cycle).
Note: Section D. needs to be done only as scheduled by the Surveillance Coordinator.
Note: Assure that the train is shut down for the valve being operated.
1.
Turn the keylock switch for SGT-255AV (SGT-256AV) to OPEN.
a.
Verify that the red light comes on and the green light goes out.
b orocsdure Number 6.3.19.1 g Date f5-SL -R'f5 gevi, son 13
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.2.
Turn the keylock switch for SGT-255AV (SGT-256AV) to CLOSE and remove the key.
a.
Verify that the green light comes on and the red light goes out.
E.
SGT Damper AD-R-1C Operational Check (Once/ Cycle).
Note: Section E. needs to be done only as scheduled by the Surveillance Coordinator.
1.
Operate damper AD-R-1C control switch on Bd-K to OPEN and verify that.the damper opens.
2.
Operate the control switch to CLOSE and verify that the damper closes.
3.
Operate the control switch to AUTO.
4.
Simulate high airborne radioactivity in the Reactor Building momentarily deenergizing relay RMABX in the rear of Bd-R by lif ting wire RMABX-2 from terminal 1133 in the rear of Bd-R and verify that the damper opens.
5.
Return relay RMABX back to normal by reconnecting wire RMABX-2 to terminal 1133 and verify that the damper closes.
6.
Simulate high drywell pressure / low water level by momentarily lifting the wire from terminal 39 (for isolation relay SAX) in isolation relay cabinet C and verify that the damper opens.
7.
Reconnect the wire to terminal 39 in isolation relay' cabinet C and verify that the damper closes.
8.
Simulate high drywell pressure / low water level by momentarily lifting the wire from terminal 49 (for isolation relay 5BX) in isolation relay cabinet D and verify that the damper opens.
9.
Reconnect the wire to terminal 49 in isolation relay cabinet D and verify that the damper closes.
IX.
ATTACHMENTS A.
SGT Operability Test Data Sheets.
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~ ATTACHMENT "A" SL'RVEILLANCE PROCEDURE 6.3.19.1 SGT OPERABILITY TEST 1
l i
SECTIONS A.'AND B.
(MONTHLY)
A B
A.
SGT Train A (B) Monthly Test.
XXX XXX B.
SGT Train B (A) Monthly Test.
XXX XXX
[
1.
Informed Operator on panel 9-5 of intent to perform an -----------
XXX XXX operability test of SGT system.
4 2.
Assured that proper indication is displayed on safety system XXX XXX status panel. ----
3.
Started desired fan as per System Operating Procedure 2.2.73.
j 4.
Opened AD-R-1C.
i 5.
Turned associated system heater on HIGH and recorded reading of ------------
. XX XXX X
}
elapsed time meter.
j 6.
This step only needs to be done for one. train and only monthly.
XXX XXX.
i a.
Opened DW-90. ----
l b.
Opened DW-91.
j c.
Monitored and verified that sump pump Z auto start occurs XXX l XXX l
without reduction of SGT flow.
~
d.
Closed DW-91.
Verified that sump pump Z stops.
e.
f.
. Opened DW-338. ---------------------------------------------------------
g.
Monitored and verified that sump pump i auto start occurs XXX l XXX without reduction of SGT flow.
h.
Closed DW-338.
t
- i. Closed DW-90.
7.
Lef t fan and heater on for greater than or equal to 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br />.
8.
Returned heater to 0FF and allowed fans to run for approximately 5 ----------
XXX XXX j
minutes to cool down charcoal filters.
9.
Recorded reading of elapsed time meter.
10.
Closed AD-R-1C, then returned switch to AUTO. ------------------------------
11.
Shut down SCT system that is being tested and hung tag on XXX XXX 4
preferred fan control switch.
j 12.
Returned heater control switch to AUTO. ------------------------------------
j 13.
Returned safety system status panel to normal.
14.
Informed Operator on panel 9-5 that test is completed.
TIME METER TIME METER READING (START)
READING (FINISH),
DATE TESTED BY SGT A 4
i SGT B 1
4 4
4 SECTION C.
(OUARTERLY) (REQUIRED ONLY AS SCHEDULED BY SURVEILLANCE COORDINATOR)
DATA CHECK i
C.
SGT A And B Moisture Separator Drain Loop Seal (Quarterly).
XXXXXXXXXX 1.
Verified following valves closed in SGT Room.
XXXXXXXXXX a.
CM-640. ---------------------------------------------------------------
1 J
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' Revision 13 Page 1
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Pages 4
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IT couru ni.ca.cnn a ou tva ur en,u tusa rumunu ATTACRMENT "A" SURVEILLANCE PROCEDURE 6.3.19.1 SGT OPERABILITY TEST SECTION C.
(OUARTERLY) (REQUIRED ONLY AS SCHEDULED BY SURVEILLANCE COORDINATOR)
DATA CHECK b.
CM-641.
c.
CM-642.
d.
CM-643. ------------
e.
CM-644, f.
CM-645.
2.
Opened CM-84. ------
3.
Opened CM-641.
4.
Cracked CM-643 opened until loop is full.
5.
Closed CM-643. ----
6.
Closed SGT-12.
7.
Cracked CM-642 opened until loop is full.
8.
Closed CM-642. -----
9.
Opened SGT-12.
10.
Cracked CM-645 opened until loop is full.
11.
Closed CM-645. ------
12.
Closed SGT-13.
13.
Cracked CM-644 opened until loop is full.
14.
Closed CM-644. ------------------------------------------------------------
15.
Opened SGT-13.
16.- Closed CM-641.
17.
Closed CM-84. -------------
SECTION D.
(ONCE/ CYCLE) (REQUIRED ONLY AS SCHEDULED BY SURVEILLANCE COORDINATOR)
A B
D.
SGT A And B Manual Bypass Valve Operability (Once/ Cycle).
XXX XXX 1.
Turned keylock switch for SGT-255AV (SGT-256AV) to OPEN.
Verified that red light comes on and green light goes -
a.
XXX XXX out.
2.
Turned keylock switch for SGT-255AV (SGT-256AV) to CLOSE XXX XXX and removed key. -------------------------------
Verified that green light comes on and red light goes XXX XXX a.
out.
SECTION E.
(ONCE/ CYCLE) (REQUIRED ONLY AS SCHEDULED BY SURVEILLANCE COORDINATOR)
DATA CHECK E.
SGT Damper AD-R-1C Operational Check (Once/ Cycle).
XXXXXXXXXX 1.
Operated damper AD-R-1C control switch on Bd-K to OPEN and XXXXXXXXXX verified that damper opens. -----------------------------------------------
2.
Operated control switch to CLOSE and verified that damper XXXXXXXXXX closes.
3.
Operated control switch to AUTO. ------------------------------------------
4.
Deenergized relay RMABX in rear of Bd-R by lifting, wire,
XXXXXXXXXX RMABX-2 f rom terminal 1133 in rear of Bd-R and verified XXXXXXXXXX that damper opens..--------------------------------------------------------
5.
Returned relay RMABX back to normal by reconnecting wire XXXXXXXXXX RMABX-2 to terminal 1133 and verified that damper closes.
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s.uu a i.n.. u u..... n o n,. s t u, ur r.aus t a uc.a ruu.u.su ATTACHMENT "A" SURVEILLANCE PROCEDURE 6.3.19.I SGT OPERABILITY TEST SECTION E.
(ONCE/ CYCLE) (REGUIRED ONLY AS SCHEDULED BY SURVEILLANCE COORDINATOR)
DATA CHECK b.
Lifted wire from terminal 39 (for isolation relay 5AX) in XXnXXXXXX isolation relay cabinet C and verified that damper opens.
7.
Reconnected wire to terminal 39 in isolation relay cabinet -------
XXXXXXXXXX C and verified that damper closes.
8.
Lif ted wire from terminal 49 (for isolation relay SBX) in XXXnXXXXX isolation relay cabinet D and verified that damper opens.
9.
Reconnected wire to terminal 49 in isolation relay cabinet XXXXXXXXXX D and verified that damper closes.
Discrepancies:
Operator
/
Date Shift Supervisor
/
Permission To Start Date Shift Supervisor
/
Test Complete And Reviewed Date Shift Supervisor
/
NCR Written If Required Date Work Item (s) Initiated If Required R viewed By
/
Date 5.a-25
'rac: dure Number 6.3.19.1 Date Revi. ion 13 ra.e 3
Of 3
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