ML110060136
| ML110060136 | |
| Person / Time | |
|---|---|
| Site: | Salem, Hope Creek  |
| Issue date: | 06/24/2009 |
| From: | Public Service Enterprise Group |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| LR-N10-0355 HC.OP-EO.ZZ-0318(Q), Rev. 6 | |
| Download: ML110060136 (43) | |
Text
PSEG Internal Use Only PSEG NUCLEAR L.L.C.
Page 1 of 1 HOPE CREEK GENERATING STATION HC.OP
-EO.ZZ-0318(Q) - Rev. 6 CONTAINMENT VENTING USE CATEGORY: I
- Biennial Review Performed: Yes No NA 9
- Packages and Affected Document Numbers incorporated into this revision:
CP No.
CP Rev.
AD No.
Rev No.
None 9
- The following OTSCs were incorporated into this revision: None REVISION
SUMMARY
- This revision adds Step 3.9 and text to Note at Step 5.1.1 to inform the user that if the Backup Pneumatic Supply (nitrogen bottles) is being used for controlling GS-HV-11541 TORUS VENT ISOLATION VALVE and GS-HV-4964 SUPP CHMBR TO CPCS DMP then the expected number of valve strokes for GS-HV-4964 and GS-HV-11541 are limited.
(Engineering Calculation H-1-KB-MDC-1007) (70071704-0020)
- Adds Step 3.10 to explain the operation of the over ride status light.
- Changes Step 3.3. to allow this procedure to be executed by SAG.
- Split several steps into two separate steps since they contained actions in different parts of the plant. This is an editorial change. (70095823-0010)
- Changes Steps 5.1.3.E and 5.1.3.F to ENSURE since this action should have been performed in the previous section.
- The damper number in Attachment 1, Step 4 was corrected from GT-HD-9327A to GT-HD-9372A as verified in the SAP Data Base. (70088227-0010)
IMPLEMENTATION REQUIREMENTS Effective Date 6/24/09 None
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 1 of 42 Rev. 6 CONTAINMENT VENTING TABLE OF CONTENTS Section Title Page 1.0 PURP OSE.............................................................................................................2 2.0 PREREQUI SITES.................................................................................................2 3.0 PRECAUTIONS AND LIMITATIONS....................................................................3 4.0 EQUIPMENT REQUIRED.....................................................................................5 5.0 PROCED URE.......................................................................................................6 5.1 Venting to Control Containment Pressure with Suppression Pool Level Less than 180 Inches....................................6 5.2 Venting to Control Containment Pressure with Suppression Pool Level Greater than 180 Inches.............................20 5.3 Venting to Control Containment Hydrogen Concentration with Suppression Pool Level Less than 180 Inches..................................25 5.4 Venting to Control Containment Hydrogen Concentration with Suppression Pool Level Greater than 180 Inches.............................31 6.0 RECO RDS..........................................................................................................35 7.0 REFERE NCES....................................................................................................35 ATTACHMENTS
, Containment Vent Valve Restoration.................................................................36, Lower Relay Room Locations............................................................................38, Reactor Building 102' Elev. Locations...............................................................39, Containment Vent Paths....................................................................................40, Hard Torus Vent Manual Operation...................................................................41
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 2 of 42 Rev. 6 1.0 PURPOSE This procedure provides the guidance to vent Primary Containment. These actions would be required during an emergency, or post emergency condition in which Drywell pressure could not be maintained below 65 psig or hydrogen and oxygen concentrations could not be maintained below combustible levels.
2.0 PREREQUISITES 2.1 HC.OP-EO.ZZ-0319, Restoring Instrument Air in an Emergency, has been completed or is being performed concurrently with this procedure to provide a continuous pneumatic supply to dampers. This is not required if dampers will be operated independent of instrument air (such as operation of the Hard Torus Vent or dampers using manual hydraulic actuators).
2.2 The Control Room Emergency Filtration System is operating in the Isolate/Recirculation Mode in accordance with HC.OP-SO.GK-0001(Q).
2.3 FRVS, if available, is in operation in accordance with HC.OP-SO.GU-0001(Q). ____
2.4 The Reactor Building has been evacuated if other than the ILRT or Hard Torus Vent, hard-piped vent paths are to be used.
2.5 The Emergency Duty Officer/Emergency Response Manager has been informed that containment venting will be performed.
2.6 Salem Operations has been notified that containment venting will be performed. ____
2.7 IF operating Hard Torus Vent valves manually (locally), communications has been established with personnel at local actuator station.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 3 of 42 Rev. 6 3.0 PRE CAUTIONS AND LIMITATIONS 3.1 This procedure constitutes extreme actions that are only to be taken in response to severely degraded plant conditions. These actions warrant evaluation of current and future plant conditions, prioritization of available plant systems and components, and consideration of the expected consequences to the plant.
The EDO must be notified upon commencing this procedure and also when opening the vent path.
3.2 Certain events (Station Blackout) may limit availability of electric power and pneumatic supply. Cycling of vent valves to maintain containment pressure below 65 psig should consider the continued capability to open the valve(s).
3.3 This procedure shall be executed only as directed by HC.OP-EO.ZZ-0102, Primary Containment Control OR Severe Accident Guideline (SAG).
3.4 The selection of vent paths has been presented in priority order.
However, if it can be determined that a particular path is unavailable or undesirable, the section addressing that vent path may be omitted (see Attachment 4).
3.5 The SM/CRS shall be aware of, and take into consideration, the environmental and radiological conditions that exist in areas requiring entry prior to dispatching personnel into the field.
3.6 Seven Blow-Out Panels are installed in the CPCS ductwork to protect the FRVS ductwork from excessive pressurization if a LOCA occurs while the Drywell or Suppression Chamber purge valves are open.
Blow-Out Panels are located on the supply ductwork upstream of valves GS-HV-4979 and GS-HV-4980 and on the return ductwork downstream of valves GS-HV-4951, GS-HV-4950, GS-HV-4963, and GS-HV-4962.
These Blow-Out panels are set at 1.0 +/- 0.25 psid and relieve directly to the reactor building. This could produce potentially adverse radiological and environmental conditions in the reactor building for personnel and equipment and hinder recovery efforts.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 4 of 42 Rev. 6 3.7 There are four Back Draft Dampers located in the CPCS and ventilation ductwork that affect various vent paths used in this procedure. Two Back Draft Dampers are located in the combined Drywell and Torus supply ductwork upstream of valves GS-HV-4979 and GS-HV-4980 and two are located in the Torus return ductwork downstream of valves GS-HV-4962 and GS-HV-4963.
These Back Draft Dampers are set to automatically close at 1.2 +/-.23 psid and must be manually reset. Therefore, vent paths that pass through Back Draft Dampers will not likely be available while venting under conditions of elevated containment pressure.
3.8 The Hard Torus Vent path is adjacent to the manual valve actuator station.
If the Hard Torus Vent valves (GS-HV-4964 and GS-HV-11541) must be operated manually, they should be opened prior to any evidence of core damage or prior to containment pressure reaching 35 psig (rupture disc pressure).
3.9 IF the Backup Pneumatic Supply (nitrogen bottles) is being used for controlling GS-HV-11541 TORUS VENT ISOLATION VALVE AND GS-HV-4964 SUPP CHMBR TO CPCS DMP THEN the number of strokes available are as follows [70071704]:
- GS-HV-4964 - 1 Stroke Open; HV-11541 - 3 Cycles, over a 24 Hr. period OR
- GS-HV-4964 - 2 Cycles; HV-11541 - 2 Cycles, over a 16 Hr. period 3.10 The ISLN OVRD pushbutton must be depressed prior to each valve operation regardless of the OVER-RIDDEN light status. The over-ride for an individual valve does not seal in and is reset each time that the valve is closed. The OVER-RIDDEN light remains illuminated until each valve controlled by that ISLN OVRD pushbutton has been given a closed demand. ____
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 5 of 42 Rev. 6 4.0 EQUIPMENT REQUIRED 4.1 The following equipment is required to:
- Unblank, rotate and recouple piping downstream of 1-GS-V058 and remove the blank flange downstream of 1-GP-V129.
- Open the Torus Vent Isolation Valve, GS-HV-11541.
4.2 Key #9 for EOP locker in OSC (obtain from SM office or break red key holder glass in OSC) 4.3 EOP-318 Implementation Kit (EOP locker in OSC) contents:
2 1-1/4 inch wrenches 1
6 amp fuse 1
fuse puller 1
flashlight
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 6 of 42 Rev. 6 5.0 PROCEDURE NOTE All operations are performed from panel 10C650E unless otherwise noted.
CAUTION This procedure constitutes extreme actions that are only to be taken in response to severely degraded plant conditions. These actions warrant evaluation of current and future plant conditions, prioritization of available plant systems and components, and consideration of the expected consequences to the plant.
5.1 Venting to Control Containment Pressure with Suppression Pool Level Less than 180 Inches NOTE Section 5.1.1 gives direction for the operation of the Hard Torus Vent path.
Containment pressure must be greater than 35 psig to initiate flow through the rupture disc. In case of loss of DC power or pneumatics, GS-HV-4964 and GS-HV-11541 may be operated manually using Attachment 5.
The Limitations of Step 3.9 apply if the Backup Pneumatic Supply (nitrogen bottles) is being used for controlling GS-HV-11541 and GS-HV-4964.
5.1.1.
VENT the containment via the Hard Torus Vent as follows:
A.
ENSURE that all prerequisites have been satisfied in accordance with Section 2.0 of this procedure.
B.
NOTIFY the Emergency Duty Officer that containment venting via the Hard Torus Vent will be performed.
C.
In the Lower Relay Room, Elev 102' at panel 1YF404 (see Attachment 2), INSTALL F22 (6 amp fuse).
D.
DEPRESS ISLN OVRD and OPEN GS-HV-4964 SUPP CHMBR TO CPCS DMP.
E.
ANNOUNCE that containment venting will commence at the South end of the Reactor Building via the Hard Torus Vent. ____
Continued on next page
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 7 of 42 Rev. 6 5.1.1 (continued)
F. WHEN HV-4964 SUPP CHMBR TO CPCS DMP is full open, THEN OPEN GS-HV-11541 TORUS VENT ISOLATION VALVE.
G. WHEN drywell pressure can be maintained below 60 psig, THEN CLOSE GS-HV-11541 TORUS VENT ISOLATION VALVE.
H.
REPEAT Steps 5.1.1.E thru 5.1.1.G as necessary to reduce and maintain drywell pressure below 65 psig.
I. IF actions taken to reduce containment pressure have been unsuccessful, then continue in this procedure.
J. WHEN containment venting is no longer required, THEN PERFORM system restoration in accordance with.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 8 of 42 Rev. 6 CAUTION Section 5.1.2 provides a hard-piped vent path that does not communicate with blowout panels or back draft dampers and is scrubbed by the Suppression Pool. However, the use of this vent path will result in an unmonitored release to the environment and requires local operations to be performed under potentially adverse radiological and/or environmental conditions.
5.1.2.
VENT the containment via the Suppression Chamber supply and ILRT piping as follows:
A.
ENSURE that all prerequisites have been satisfied in accordance with Section 2.0 of this procedure.
B.
NOTIFY the Emergency Duty Officer that containment venting from the South end of the Reactor Building near the CST will be performed.
NOTE Valve 1-GS-V058 is locally operated on Reactor Building elev. 102, south HCU area against Drywell wall. The angled piping downstream of 1-GS-V058 is located in the Reactor Building below 1-GS-V058.
Valve 1-GP-V129 is locally operated in the yard area south of the Power Block, 8 ft above the ground (against Power Block wall near the CST). There is a blank flange downstream of 1-GP-V129 which must be removed to provide a flowpath.
C.
UNBLANK, ROTATE, and COUPLE the angled piping downstream of 1-GS-V058.
D.
REMOVE blank flange downstream of 1-GP-V129.
E.
OPEN 1-GP-V129 ILRT Sensing Line Isln Vlv. (local)
F.
OPEN 1-GS-V058 N2 Sup Hdr Comp Air Sup Man Vlv (local). ____
G.
ENSURE personnel are clear of the area at the South end of the Reactor Building near the CST.
H.
VERIFY that the Control Room Emergency Filtration System is operating in the Isolate/Recirculation mode.
(continued on next page)
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 9 of 42 Rev. 6 5.1.2 (continued)
I.
ANNOUNCE that containment venting will commence at the South end of the Reactor Building near the CST.
J.
DEPRESS ISLN OVRD and OPEN GS-HV-4958 CPCS RET TO SUPP CHMBR.
K. WHEN GS-HV-4958 CPCS RET TO SUPP CHMBR is full open, THEN DEPRESS ISLN OVRD AND OPEN GS-HV-4978 N2 SUP HDR ISLN VLV.
L.
When drywell pressure can be maintained below 60 psig then CLOSE the following:
- GS-HV-4978 N2 SUP HD ISLN VLV
- GS-HV-4958 CPCS RET TO SUPP CHMBR M.
REPEAT Steps 5.1.2.G thru 5.1.2.L as necessary to reduce and maintain drywell pressure below 65 psig.
N. IF actions taken to reduce containment pressure have been unsuccessful, then continue in this procedure.
O. WHEN containment venting is no longer required, THEN PERFORM system restoration in accordance with.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 10 of 42 Rev. 6 CAUTION Section 5.1.3 provides a hard-piped vent path that does not communicate with blowout panels or back draft dampers. However, the use of this vent path will result in an unmonitored, unscrubbed and untreated radioactive release to the environment and requires local operations to be performed under potentially adverse radiological and/or environmental conditions.
5.1.3.
VENT the containment via the Drywell supply and ILRT piping as follows:
A.
ENSURE that all prerequisites have been satisfied in accordance with Section 2.0 of this procedure.
B.
NOTIFY the Emergency Duty Officer that containment venting from the South end of the Reactor Building near the CST will be performed.
NOTE Valve 1-GS-V058 is locally operated on Reactor Building elev. 102, south HCU area against Drywell wall. The angled piping downstream of 1-GS-V058 is located in the Reactor Building below 1-GS-V058.
Valve 1-GP-V129 is locally operated in the yard area south of the Power Block, 8 ft above the ground (against Power Block wall near the CST). There is a blank flange downstream of 1-GP-V129 which must be removed to provide a flowpath.
C.
UNBLANK, ROTATE, and COUPLE the angled piping downstream of 1-GS-V058.
D.
REMOVE blank flange downstream of 1-GP-V129 if not previously performed.
E.
ENSURE 1-GP-V129 ILRT Sensing Line Isln Vlv (local) is OPEN. ____
F.
ENSURE 1-GS-V058 N2 Sup Hdr Comp Air Sup Man Vlv (local) is OPEN.
G.
ENSURE personnel are clear of the area at the South end of the Reactor Building near the CST.
(continued on next page)
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 11 of 42 Rev. 6 5.1.3 (continued)
H.
VERIFY that the Control Room Emergency Filtration System is operating in the Isolate/Recirculation mode.
I.
ANNOUNCE that containment venting will commence at the South end of the Reactor Building near the CST.
J.
DEPRESS ISLN OVRD and OPEN GS-HV-4956 CPCS RET TO CNTMT DMPR.
K. WHEN GS-HV-4956 CPCS RET TO CNTMT DMPR is full open, THEN DEPRESS ISLN OVRD AND OPEN GS-HV-4978 N2 SUP HDR ISLN VLV.
L. WHEN drywell pressure can be maintained below 60 psig THEN CLOSE the following:
- GS-HV-4978 N2 SUP HD ISLN VLV
- GS-HV-4956 CPCS RET TO CNTMT DMPR M.
REPEAT Steps 5.1.3.G thru 5.1.3.L as necessary to reduce and maintain drywell pressure below 65 psig.
N. IF actions taken to reduce containment pressure have been unsuccessful, THEN CONTINUE in this procedure.
O. WHEN containment venting is no longer required, THEN PERFORM system restoration in accordance with.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 12 of 42 Rev. 6 CAUTION Section 5.1.4 provides a vent path that is scrubbed by the Suppression Pool, treated by FRVS and monitored prior to release to the environment. However, the vent path passes through ductwork that contains Back Draft Dampers and Blow-out Panels.
Consideration should be given to the potential for creating and/or increasing an adverse radiological and/or environmental condition (i.e. oxygen deficiencies) within the reactor building.
5.1.4.
VENT the containment via the Suppression Chamber 2" exhaust as follows:
A.
ENSURE that all prerequisites have been satisfied in accordance with Section 2.0 of this procedure.
B.
NOTIFY the Emergency Duty Officer that containment venting of the Suppression Chamber to the Reactor Building will be performed.
C.
DEPRESS ISLN OVRD and OPEN GT-HD-9372A Drwl Purge Vent Exh Dmpr.
D.
DEPRESS ISLN OVRD and OPEN GS-HV-4964 SUPP CHMBR TO CPCS DMP.
E.
ANNOUNCE containment venting of the Suppression Chamber to the Reactor Building.
F. WHEN GS-HV-4964 SUPP CHMBR TO CPCS DMP is full open, THEN DEPRESS ISLN OVRD AND OPEN GS-HV-4963 SUPP CHMBR N2 M/U EXH.
G. WHEN drywell pressure can be maintained below 60 psig, THEN CLOSE the following:
- GS-HV-4963 SUPP CHMBR N2 M/U EXH
- GS-HV-4964 SUPP CHMBR TO CPCS DMP H.
REPEAT Steps 5.1.4.D thru 5.1.4.G as necessary to reduce and maintain drywell pressure below 65 psig.
(continued on next page)
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 13 of 42 Rev. 6 5.1.4 (continued)
I. IF actions taken to reduce containment pressure have been unsuccessful, THEN CONTINUE in this procedure.
J. WHEN containment venting is no longer required, THEN PERFORM system restoration in accordance with.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 14 of 42 Rev. 6 CAUTION Section 5.1.5 provides a vent path that is treated by FRVS and monitored prior to release to the environment. However, the vent path is not scrubbed by the Suppression Pool and passes through ductwork that contains Blow-out Panels. Consideration should be given to the potential for creating and/or increasing an adverse radiological and/or environmental condition (i.e. oxygen deficiencies) within the reactor building.
5.1.5.
VENT the containment via the Drywell 2" exhaust as follows:
A.
ENSURE that all prerequisites have been satisfied in accordance with Section 2.0 of this procedure.
B.
NOTIFY the Emergency Duty Officer that containment venting of the Drywell to the Reactor Building will be performed. ____
C.
DEPRESS ISLN OVRD and OPEN GT-HD-9372A Drwl Purge Vent Exh Dmpr.
D.
DEPRESS ISLN OVRD and OPEN GS-HV-4952 CNTMT TO CPCS INBD DMP.
E.
ANNOUNCE containment venting of the Drywell to the Reactor Building.
F.
When GS-HV-4952 CNTMT TO CPCS INBD is full open, THEN DEPRESS ISLN OVRD AND OPEN GS-HV-4951 PRI CNTMT N2 M/U EXH.
G. WHEN drywell pressure can be maintained below 60 psig THEN CLOSE the following:
- GS-HV-4952 CNTMT TO CPCS INBD H.
REPEAT Steps 5.1.5.D thru 5.1.5.G as necessary to reduce and maintain drywell pressure below 65 psig.
I. IF actions taken to reduce containment pressure have been unsuccessful, THEN CONTINUE in this procedure.
J. WHEN containment venting is no longer required, THEN PERFORM system restoration in accordance with.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 15 of 42 Rev. 6 CAUTION Section 5.1.6 provides a vent path that is scrubbed by the Suppression Pool, treated by FRVS and monitored prior to release to the environment. However, the vent path passes through ductwork that contains Back Draft Dampers and Blow-out Panels.
Consideration should be given to the potential for creating and/or increasing an adverse radiological and/or environmental condition (i.e. oxygen deficiencies) within the reactor building.
5.1.6.
VENT the containment via the Suppression Chamber 24" exhaust as follows:
A.
ENSURE that all prerequisites have been satisfied in accordance with Section 2.0 of this procedure.
B.
NOTIFY the Emergency Duty Officer that containment venting from the Suppression Chamber to the Reactor Building will be performed.
C.
DEPRESS ISLN OVRD and OPEN GT-HD-9372A Drwl Purge Vent Exh Dmpr.
D.
DEPRESS ISLN OVRD and OPEN GS-HV-4964 SUPP CHMBR TO CPCS DMP.
E.
ANNOUNCE containment venting of the Suppression Chamber to the Reactor Building.
F. WHEN GS-HV-4964 SUPP CHMBR TO CPCS DMP is full open, THEN DEPRESS ISLN OVRD AND OPEN GS-HV-4962 SUPP CHMBR TO CPCS OUT.
G. WHEN drywell pressure can be maintained below 60 psig, THEN CLOSE the following:
- GS-HV-4964 SUPP CHMBR TO CPCS DMP
- GS-HV-4962 SUPP CHMBR TO CPCS OUT H.
REPEAT Steps 5.1.6.D thru 5.1.6.G as necessary to reduce and maintain drywell pressure below 65 psig.
(continued on next page)
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 16 of 42 Rev. 6 5.1.6 (continued)
I. IF actions taken to reduce containment pressure have been unsuccessful, THEN CONTINUE in this procedure.
J. WHEN containment venting is no longer required, THEN PERFORM system restoration in accordance with.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 17 of 42 Rev. 6 CAUTION Section 5.1.7 provides a vent path that is scrubbed by the Suppression Pool, treated by FRVS and monitored prior to release to the environment. However, the vent path, passes through ductwork that contains Back Draft Dampers and Blow-out Panels.
Consideration should be given to the potential for creating and/or increasing an adverse radiological and/or environmental condition (i.e. oxygen deficiencies) within the reactor building.
5.1.7.
VENT the containment via the Suppression Chamber 24" supply as follows:
A.
ENSURE that all prerequisites have been satisfied in accordance with Section 2.0 of this procedure.
B.
NOTIFY the Emergency Duty Officer that containment venting from the Suppression Chamber to the Reactor Building will be performed.
C.
DEPRESS ISLN OVRD and OPEN GT-HD-9372C Drwl Purge Vent Sup Dmpr.
D.
DEPRESS ISLN OVRD and OPEN GS-HV-4958 CPCS RET TO SUPP CHMBR.
E.
ANNOUNCE containment venting of the Suppression Chamber to the Reactor Building.
F. WHEN GS-HV-4958 CPCS RET TO SUPP CHMBR is full open, THEN DEPRESS ISLN OVRD AND OPEN GS-HV-4980 CPCS RT TO SUPP CHMBR.
G. WHEN drywell pressure can be maintained below 60 psig THEN CLOSE the following:
- GS-HV-4980 CPCS RT TO SUPP CHMBR
- GS-HV-4958 CPCS RET TO SUPP CHMBR H.
REPEAT Steps 5.1.7.D thru 5.1.7.G as necessary to reduce and maintain drywell pressure below 65 psig.
I. IF actions taken to reduce containment pressure have been unsuccessful, THEN continue in this procedure.
J. WHEN containment venting is no longer required, THEN PERFORM system restoration in accordance with.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 18 of 42 Rev. 6 CAUTION Section 5.1.8 provides a vent path that is treated by FRVS and monitored prior to release to the environment. However, the vent path is not scrubbed by the Suppression Pool and passes through ductwork that contains Back Draft Dampers and Blow-out Panels.
Consideration should be given to the potential for creating and/or increasing an adverse radiological and/or environmental condition (i.e. oxygen deficiencies) within the reactor building.
5.1.8.
VENT the containment via the Drywell 24" supply as follows:
A.
ENSURE that all prerequisites have been satisfied in accordance with Section 2.0 of this procedure.
B.
NOTIFY the Emergency Duty Officer that containment venting from the Drywell to the Reactor Building will be performed. ____
C.
DEPRESS ISLN OVRD and OPEN GT-HD-9372C Drwl Purge Vent Sup Dmpr.
D.
DEPRESS ISLN OVRD and OPEN GS-HV-4979 CPCS RET TO CNTMT DMPR.
E.
ANNOUNCE containment venting of the Drywell to the Reactor Building.
F. WHEN GS-HV-4979 CPCS RET TO CNTMT DMPR is full open, THEN DEPRESS ISLN OVRD AND OPEN GS-HV-4956 CPCS RET TO CNTMT DMPR.
G. WHEN drywell pressure can be maintained below 60 psig THEN CLOSE the following:
- GS-HV-4979 CPCS RET TO CNTMT DMPR
- GS-HV-4956 CPCS RET TO CNTMT DMPR H.
REPEAT Steps 5.1.8.D thru 5.1.8.G as necessary to reduce and maintain drywell pressure below 65 psig.
I. If actions taken to reduce containment pressure have been unsuccessful, THEN CONTINUE in this procedure.
J. WHEN containment venting is no longer required, THEN PERFORM system restoration in accordance with.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 19 of 42 Rev. 6 CAUTION Section 5.1.9 provides a vent path that is treated by FRVS and monitored prior to release to the environment. However, the vent path is not scrubbed by the Suppression Pool and passes through ductwork that contains Blow-out Panels. Consideration should be given to the potential for creating and/or increasing an adverse radiological and/or environmental condition (i.e. oxygen deficiencies) within the reactor building.
5.1.9.
VENT the containment via the Drywell 26" exhaust as follows:
A.
ENSURE that all prerequisites have been satisfied in accordance with Section 2.0 of this procedure.
B.
NOTIFY the Emergency Duty Officer that containment venting from the Drywell to the Reactor Building will be performed. ____
C.
DEPRESS ISLN OVRD and OPEN GT-HD-9372A Drwl Purge Vent Exh Dmpr.
D.
DEPRESS ISLN OVRD and OPEN GS-HV-4952 CNTMT TO CPCS INBD DMP.
E.
ANNOUNCE containment venting of the Drywell to the Reactor Building.
F. WHEN GS-HV-4952 CNTMT TO CPCS INBD is full open, THEN DEPRESS ISLN OVRD AND OPEN GS-HV-4950 CNTMT TO CPCS OUTB DMP.
G. WHEN drywell pressure can be maintained below 60 psig THEN CLOSE the following:
- GS-HV-4950 CNTMT TO CPCS OUTB DMP
- GS-HV-4952 CNTMT TO CPCS INBD H.
REPEAT Steps 5.1.9.D thru 5.1.9.G as necessary to reduce and maintain drywell pressure below 65 psig.
I. WHEN containment venting is no longer required, THEN PERFORM system restoration in accordance with.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 20 of 42 Rev. 6 5.2 Venting to Control Containment Pressure with Suppression Pool Level Greater than 180 Inches CAUTION Section 5.2.1 can be performed only if Containment level is less than 50 feet.
Section 5.2.1 provides a hard-piped vent path that does not communicate with blowout panels or back draft dampers. However, the use of this vent path will result in an unmonitored and untreated radioactive release to the environment and requires local operations to be performed under potentially adverse radiological and/or environmental conditions.
5.2.1.
VENT the containment via the Drywell supply and ILRT piping as follows:
A.
ENSURE that all prerequisites have been satisfied in accordance with Section 2.0 of this procedure.
B.
NOTIFY the Emergency Duty Officer that containment venting from the South end of the Reactor Building near the CST will be performed.
NOTE Valve 1-GS-V058 is locally operated on Reactor Building elev. 102, south HCU area against Drywell wall. The angled piping downstream of 1-GS-V058 is located in the Reactor Building below 1-GS-V058.
Valve 1-GP-V129 is locally operated in the yard area south of the Power Block, 8 ft above the ground (against Power Block wall near the CST). There is a blank flange downstream of 1-GP-V129 which must be removed to provide a flowpath.
C.
UNBLANK, ROTATE, and COUPLE the angled piping downstream of 1-GS-V058.
D.
REMOVE blank flange downstream of 1-GP-V129.
E.
OPEN 1-GP-V129 ILRT Sensing Line Isln Vlv. (local)
F.
OPEN 1-GS-V058 N2 Sup Hdr Comp Air Sup Man Vlv (local). ____
G.
ENSURE that personnel are clear of the area at the South end of the Reactor Building near the CST.
Continued on next page
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 21 of 42 Rev. 6 5.2.1 (continued)
H.
VERIFY the Control Room Emergency Filtration System is operating in the Isolate/Recirculation mode.
I.
ANNOUNCE that containment venting will commence at the South end of the Reactor Building near the CST.
J.
DEPRESS ISLN OVRD and OPEN GS-HV-4956 CPCS RET TO CNTMT DMPR.
K. WHEN GS-HV-4956 CPCS RET TO CNTMT DMPR is full open, THEN DEPRESS ISLN OVRD AND OPEN GS-HV-4978 N2 SUP HDR ISLN VLV.
L. WHEN drywell pressure can be maintained below 60 psig, THEN CLOSE the following:
- GS-HV-4978 N2 SUP HD ISLN VLV
- GS-HV-4956 CPCS RET TO CNTMT DMPR M.
REPEAT Steps 5.2.1.G thru 5.2.1.L as necessary to reduce and maintain drywell pressure below 65 psig.
N. IF actions taken to reduce containment pressure have been unsuccessful, then continue in this procedure.
O. WHEN containment venting is no longer required, THEN PERFORM system restoration in accordance with.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 22 of 42 Rev. 6 CAUTION Section 5.2.2 provides a vent path that is treated by FRVS and monitored prior to release to the environment. However, the vent path is not scrubbed by the Suppression Pool and passes through ductwork that contains Blow-out Panels. Consideration should be given to the potential for creating and/or increasing an adverse radiological and/or environmental condition (i.e. oxygen deficiencies) within the reactor building.
5.2.2.
VENT the containment via the Drywell 2" exhaust as follows:
A.
ENSURE that all prerequisites have been satisfied in accordance with Section 2.0 of this procedure.
B.
NOTIFY the Emergency Duty Officer that containment venting from the Drywell to the Reactor Building will be performed. ____
C.
DEPRESS ISLN OVRD and OPEN GT-HD-9372A Drwl Purge Vent Exh Dmpr.
D.
DEPRESS ISLN OVRD and OPEN GS-HV-4952 CNTMT TO CPCS INBD DMP.
E.
ANNOUNCE containment venting of the Drywell to the Reactor Building.
F. WHEN GS-HV-4952 CNTMT TO CPCS INBD is full open, THEN DEPRESS ISLN OVRD AND OPEN GS-HV-4951 PRI CNTMT N2 M/U EXH.
G. WHEN drywell pressure can be maintained below 60 psig THEN CLOSE the following:
- GS-HV-4952 CNTMT TO CPCS INBD H.
REPEAT Steps 5.2.2.D thru 5.2.2.G as necessary to reduce and maintain drywell pressure below 65 psig.
I. IF actions taken to reduce containment pressure have been unsuccessful, THEN CONTINUE in this procedure.
J. WHEN containment venting is no longer required, THEN PERFORM system restoration in accordance with.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 23 of 42 Rev. 6 CAUTION Section 5.2.3 can be performed only if Containment level is less than 50 feet.
Section 5.2.3 provides a vent path that is treated by FRVS and monitored prior to release to the environment. However, the vent path is not scrubbed by the Suppression Pool and passes through ductwork that contains Back Draft Dampers and Blow-out Panels.
Consideration should be given to the potential for creating and/or increasing an adverse radiological and/or environmental condition (i.e. oxygen deficiencies) within the reactor building.
5.2.3.
VENT the containment via the Drywell 24" supply as follows:
A.
ENSURE that all prerequisites have been satisfied in accordance with Section 2.0 of this procedure.
B.
NOTIFY the Emergency Duty Officer that containment venting from the Drywell to the Reactor Building will be performed. ____
C.
DEPRESS ISLN OVRD and OPEN GT-HD-9372C Drwl Purge Vent Sup Dmpr.
D.
DEPRESS ISLN OVRD and OPEN GS-HV-4979 CPCS RET TO CNTMT DMPR.
E.
ANNOUNCE containment venting of the Drywell to the Reactor Building.
F. WHEN GS-HV-4979 CPCS RET TO CNTMT DMPR is full open, THEN DEPRESS ISLN OVRD AND OPEN GS-HV-4956 CPCS RET TO CNTMT DMPR.
G. WHEN drywell pressure can be maintained below 60 psig THEN CLOSE the following:
- GS-HV-4979 CPCS RET TO CNTMT DMPR
- GS-HV-4956 CPCS RET TO CNTMT DMPR H.
REPEAT Steps 5.2.3.D thru 5.2.3.G as necessary to reduce and maintain drywell pressure below 65 psig.
I. IF actions taken to reduce containment pressure have been unsuccessful, THEN CONTINUE in this procedure.
J. WHEN containment venting is no longer required, THEN PERFORM system restoration in accordance with.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 24 of 42 Rev. 6 CAUTION Section 5.2.4 provides a vent path that is treated by FRVS and monitored prior to release to the environment. However, the vent path is not scrubbed by the Suppression Pool and passes through ductwork that contains Blow-out Panels. Consideration should be given to the potential for creating and/or increasing an adverse radiological and/or environmental condition (i.e. oxygen deficiencies) within the reactor building.
5.2.4.
VENT the containment via the Drywell 26" exhaust as follows:
A.
ENSURE that all prerequisites have been satisfied in accordance with Section 2.0 of this procedure.
B.
NOTIFY the Emergency Duty Officer that containment venting from the Drywell to the Reactor Building will be performed. ____
C.
DEPRESS ISLN OVRD and OPEN GT-HD-9372A Drwl Purge Vent Exh Dmpr.
D.
DEPRESS ISLN OVRD and OPEN GS-HV-4952 CNTMT TO CPCS INBD DMP.
E.
ANNOUNCE containment venting of the Drywell to the Reactor Building.
F. WHEN GS-HV-4952 CNTMT TO CPCS INBD is full open, THEN DEPRESS ISLN OVRD AND OPEN GS-HV-4950 CNTMT TO CPCS OUTB DMP.
G. WHEN drywell pressure can be maintained below 60 psig THEN CLOSE the following:
- GS-HV-4950 CNTMT TO CPCS OUTB DMP
- GS-HV-4952 CNTMT TO CPCS INBD H.
REPEAT Steps 5.2.4.D thru 5.2.4.G as necessary to reduce and maintain drywell pressure below 65 psig.
I. WHEN containment venting is no longer required, THEN PERFORM system restoration in accordance with.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 25 of 42 Rev. 6 5.3 Venting to Control Containment Hydrogen Concentration with Suppression Pool Level Less Than 180 Inches CAUTION Section 5.3.1 provides a hard-piped vent path that does not communicate with blowout panels or back draft dampers. However, the use of this vent path will result in an unmonitored and untreated radioactive release to the environment and requires local operations to be performed under potentially adverse radiological and/or environmental conditions.
5.3.1.
VENT the containment via the Suppression Chamber supply and ILRT Piping as follows:
A.
ENSURE that all prerequisites have been satisfied in accordance with Section 2.0 of this procedure.
B.
NOTIFY the Emergency Duty Officer that containment venting from the South end of the Reactor Building near the CST will be performed.
NOTE Valve 1-GS-V058 is locally operated on Reactor Building elev. 102, south HCU area against Drywell wall. The angled piping downstream of 1-GS-V058 is located in the Reactor Building below 1-GS-V058.
Valve 1-GP-V129 is locally operated in the yard area south of the Power Block, 8 ft above the ground (against Power Block wall near the CST). There is a blank flange downstream of 1-GP-V129 which must be removed to provide a flowpath.
C.
UNBLANK, ROTATE, and COUPLE the angled piping downstream of 1-GS-V058.
D.
REMOVE blank flange downstream of 1-GP-V129.
E.
OPEN 1-GP-V129 ILRT Sensing Line Isln Vlv. (local)
F.
OPEN 1-GS-V058 N2 Sup Hdr Comp Air Sup Man Vlv (local). ____
G.
ENSURE that personnel are clear of the area at the South end of the Reactor Building near the CST.
H.
VERIFY the Control Room Emergency Filtration System is operating in the Isolate/Recirculation mode.
Continued on next page
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 26 of 42 Rev. 6 5.3.1 (continued)
I.
ANNOUNCE that containment venting will commence at the South end of the Reactor Building near the CST.
J.
DEPRESS ISLN OVRD and OPEN GS-HV-4958 CPCS RET TO SUPP CHMBR.
K. WHEN GS-HV-4958 CPCS RET TO SUPP CHMBR is full open, THEN DEPRESS ISLN OVRD AND OPEN GS-HV-4978 N2 SUP HDR ISLN VLV.
L. WHEN either:
- Drywell and suppression chamber oxygen concentration can be maintained below 5 percent, THEN CLOSE the following:
- GS-HV-4978 N2 SUP HD ISLN VLV
- GS-HV-4958 CPCS RET TO SUPP CHMB M.
REPEAT Steps 5.3.1.G thru 5.3.1.L as necessary to reduce and maintain:
- Drywell and suppression chamber oxygen concentration below 5 percent.
N. IF actions taken to reduce drywell and suppression chamber hydrogen/oxygen concentration have been unsuccessful, THEN CONTINUE in this procedure.
O. WHEN containment venting is no longer required, THEN PERFORM system restoration in accordance with.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 27 of 42 Rev. 6 CAUTION Section 5.3.2 provides a vent path that is scrubbed by the Suppression Pool, treated by FRVS and monitored prior to release to the environment. However, the vent path passes through ductwork that contains Back Draft Dampers and Blow-out Panels.
Consideration should be given to the potential for creating and/or increasing an adverse radiological and/or environmental condition (i.e. oxygen deficiencies) within the reactor building.
5.3.2.
VENT the containment via the Suppression Chamber 2" exhaust as follows:
A.
ENSURE that all prerequisites have been satisfied in accordance with Section 2.0 of this procedure.
B.
NOTIFY the Emergency Duty Officer that containment venting from the Suppression Chamber to the Reactor Building will be performed.
C.
DEPRESS ISLN OVRD and OPEN GT-HD-9372A Drwl Purge Vent Exh Dmpr.
D.
DEPRESS ISLN OVRD and OPEN GS-HV-4964 SUPP CHMBR TO CPCS DMP.
E.
ANNOUNCE containment venting of the Suppression Chamber to the Reactor Building.
F. WHEN GS-HV-4964 SUPP CHMBR TO CPCS DMP is full open, THEN DEPRESS ISLN OVRD AND OPEN GS-HV-4963 SUPP CHMBR N2 M/U EXH.
G. WHEN either:
- Drywell and suppression chamber oxygen concentration can be maintained below 5 percent, THEN CLOSE the following:
- GS-HV-4963 SUPP CHMBR N2 M/U EXH
- GS-HV-4964 SUPP CHMBR TO CPCS DMP.
Continued on next page
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 28 of 42 Rev. 6 5.3.2 (continued)
H.
REPEAT Steps 5.3.2.D thru 5.3.2.G as necessary to reduce and maintain:
- Drywell and suppression chamber oxygen concentration below 5 percent.
I. IF actions taken to reduce drywell and suppression chamber hydrogen/oxygen concentration have been unsuccessful, THEN CONTINUE in this procedure.
J. WHEN containment venting is no longer required, THEN PERFORM system restoration in accordance with.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 29 of 42 Rev. 6 CAUTION Section 5.3.3 provides a vent path that is treated by FRVS and monitored prior to release to the environment. However, the vent path is not scrubbed by the Suppression Pool and passes through ductwork that contains Blow-out Panels. Consideration should be given to the potential for creating and/or increasing an adverse radiological and/or environmental condition (i.e. oxygen deficiencies) within the reactor building.
5.3.3.
VENT the containment via the Drywell 2" exhaust as follows:
A.
ENSURE that all prerequisites have been satisfied in accordance with Section 2.0 of this procedure.
B.
NOTIFY the Emergency Duty Officer that containment venting from the Drywell to the Reactor Building will be performed. ____
C.
DEPRESS ISLN OVRD and OPEN GT-HD-9372A Drwl Purge Vent Exh Dmpr.
D.
DEPRESS ISLN OVRD and OPEN GS-HV-4952 CNTMT TO CPCS INBD DMP.
E.
ANNOUNCE containment venting of the Drywell to the Reactor Building.
F. WHEN GS-HV-4952 CNTMT TO CPCS INBD is full open, THEN DEPRESS ISLN OVRD and OPEN GS-HV-4951 PRI CNTMT N2 M/U EXH.
G. WHEN either:
- Drywell and suppression chamber oxygen concentration can be maintained below 5 percent, THEN CLOSE the following:
- GS-HV-4952 CNTMT TO CPCS INBD Continued on next page
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 30 of 42 Rev. 6 5.3.3 (continued H.
REPEAT Steps 5.3.3.D thru 5.3.3.G as necessary to reduce and maintain:
- Drywell and suppression chamber oxygen concentration below 5 percent.
I. WHEN containment venting is no longer required, THEN PERFORM system restoration in accordance with.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 31 of 42 Rev. 6 5.4 Venting to Control Containment Hydrogen Concentration with Suppression Pool Level Greater than 180 Inches CAUTION Section 5.4.1 provides a hard-piped vent path that does not communicate with blowout panels or back draft dampers. However, the use of this vent path will result in an unmonitored and untreated radioactive release to the environment and requires local operations to be performed under potentially adverse radiological and/or environmental conditions.
5.4.1.
VENT the containment via the Drywell supply and ILRT piping as follows:
A.
ENSURE that all prerequisites have been satisfied in accordance with Section 2.0 of this procedure.
B.
NOTIFY the Emergency Duty Officer that containment venting from the South end of the Reactor Building near the CST will be performed.
NOTE Valve 1-GS-V058 is locally operated on Reactor Building elev. 102, south HCU area against Drywell wall. The angled piping downstream of 1-GS-V058 is located in the Reactor Building below 1-GS-V058.
Valve 1-GP-V129 is locally operated in the yard area south of the Power Block, 8 ft above the ground (against Power Block wall near the CST). There is a blank flange downstream of 1-GP-V129 which must be removed to provide a flowpath.
C.
UNBLANK, ROTATE, and COUPLE the angled piping downstream of 1-GS-V058.
D.
REMOVE blank flange downstream of 1-GP-V129.
E.
OPEN 1-GP-V129 ILRT Sensing Line Isln Vlv. (local)
F.
OPEN 1-GS-V058 N2 Sup Hdr Comp Air Sup Man Vlv (local). ____
G.
ENSURE that personnel are clear of the area at the South end of the Reactor Building near the CST.
H.
VERIFY the Control Room Emergency Filtration System is operating in the Isolate/Recirculation mode.
Continued on next page
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 32 of 42 Rev. 6 5.4.1 (continued)
I.
ANNOUNCE that containment venting will commence at the South end of the Reactor Building near the CST.
J.
DEPRESS ISLN OVRD and OPEN GS-HV-4956 CPCS RET TO CNTMT DMPR.
K. WHEN GS-HV-4956 CPCS RET TO CNTMT DMPR is full open, THEN DEPRESS ISLN OVRD AND OPEN GS-HV-4978 N2 SUP HDR ISLN VLV.
L. WHEN either:
- Drywell and suppression chamber oxygen concentration can be maintained below 5 percent, THEN CLOSE the following:
- GS-HV-4978 N2 SUP HD ISLN VLV
- GS-HV-4956 CPCS RET TO CNTMT DMPR M.
REPEAT Steps 5.4.1.G thru 5.4.1.L as necessary to reduce and maintain:
- Drywell and suppression chamber oxygen concentration below 5 percent.
N. IF actions taken to reduce drywell and suppression chamber hydrogen/oxygen concentration have been unsuccessful, THEN continue in this procedure.
O. WHEN containment venting is no longer required, THEN PERFORM system restoration in accordance with.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 33 of 42 Rev. 6 CAUTION Section 5.4.2 provides a vent path that is treated by FRVS and monitored prior to release to the environment. However, the vent path is not scrubbed by the Suppression Pool and passes through ductwork that contains Blow-out Panels. Consideration should be given to the potential for creating and/or increasing an adverse radiological and/or environmental condition (i.e. oxygen deficiencies) within the reactor building.
5.4.2.
VENT the containment via the Drywell 2" exhaust as follows:
A.
ENSURE that all prerequisites have been satisfied in accordance with Section 2.0 of this procedure.
B.
NOTIFY the Emergency Duty Officer that containment venting from the Drywell to the Reactor Building will be performed. ____
C.
DEPRESS ISLN OVRD and OPEN GT-HD-9372A Drwl Purge Vent Exh Dmpr.
D.
DEPRESS ISLN OVRD and OPEN GS-HV-4952 CNTMT TO CPCS INBD DMP.
E.
ANNOUNCE containment venting of the Drywell to the Reactor Building.
F. WHEN GS-HV-4952 CNTMT TO CPCS INBD is full open, THEN DEPRESS ISLN OVRD AND OPEN GS-HV-4951 PRI CNTMT N2 M/U EXH.
G. WHEN either:
- Drywell and suppression chamber oxygen concentration can be maintained below 5 percent, THEN CLOSE the following:
- GS-HV-4952 CNTMT TO CPCS INBD Continued on next page
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 34 of 42 Rev. 6 5.4.2 (continued)
H.
REPEAT Steps 5.4.2.D thru 5.4.2.G as necessary to reduce and maintain:
- Drywell and suppression chamber oxygen concentration below 5 percent.
I. WHEN containment venting is no longer required, THEN PERFORM system restoration in accordance with.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 35 of 42 Rev. 6 6.0 RECORDS 6.1 RETAIN the following IAW RM-AA-101, Records Management Program.
- Attachment 1, Containment Vent Valve Restoration
- Attachment 5, Hard Torus Vent Manual Operation
7.0 REFERENCES
7.1 P&IDs:
- M-57-1
- M-60-1
- M-76-1
- M-83-1
- M-84-1 7.2 Electrical Diagrams:
- 10855 J200(Q)-382-8, 10855 J200(Q)-396-5
- 10855 J200(Q)-391-6, 10855 J200(Q)-381-6
- 10855 J200(Q)-378-6, 10855 J200(Q)-374-6
- 10855 J200(Q)-379-8, 10855 J200(Q)-380-8
- 10855 J200(Q)-385-6 7.3 GE Documents:
- BWROG Emergency Procedure Guidelines, Rev. 4 (NEDO 31331, March 1987) 7.4 Other
References:
- C-0928-0
- C-0929-0
- C-0931-0
- C-0932-0
- Order 70071704, To specify the number of valve strokes that can be by the gas stored in the nitrogen bottles. (Engineering Calculation H-1-KB-MDC-1007) 7.5 Closing Documents:
- CD-382G NRC 354/92-18-02, Ensure proper notifications prior to venting.
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 36 of 42 Rev. 6 ATTACHMENT 1 CONTAINMENT VENT VALVE RESTORATION Page 1 of 2
- 1. CLOSE 1-GP-V129 ILRT Sensing Line Isln Vlv
- 2. CLOSE 1-GS-V058 N2 Sup Hdr Comp Air Sup Man Vlv
- 3. INSTALL blank flange downstream of 1-GP-V129 and, UNCOUPLE, ROTATE, and BLANK the angled piping downstream of 1-GS-V058.
BLANK INSTALLED GP-V129 PIPING UNCOUPLED, ROTATED, AND BLANKS INSTALLED
- 4. CLOSE GT-HD-9372A Drwl Purge Vent Exh Dmpr
- 5. CLOSE GT-HD-9372C Drwl Purge Vent Sup Dmpr
- 6. VERIFY CLOSED the following:
A.
GS-HV-4950 CNTMT TO CPCS OUTB DMP B.
GS-HV-4951 PRI CNTMT N2 M/U EXH C.
GS-HV-4952 CNTMT TO CPCS INBD DMP D.
GS-HV-4956 CPCS RET TO CNTMT DMPR E.
GS-HV-4958 CPCS RET TO SUPP CHMBR F.
GS-HV-4962 SUPP CHMBR CPCS OUT G.
GS-HV-4963 SUPP CHMBR N2 M/U EXH H.
GS-HV-4978 N2 SUP HDR ISLN VLV I.
GS-HV-4980 CPCS RET TO CNTMT/DMPR NOTE If GS-HV-11541 and GS-HV-4964 have been operated manually, it may be necessary to open the block/bypass valve on the manual actuator (see Attachment 5).
J.
GS-HV-4964 SUPP CHMBR TO CPCS DMP K.
GS-HV-11541 TORUS VENT ISOLATION VALVE
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 37 of 42 Rev. 6 ATTACHMENT 1 Page 2 of 2 CONTAINMENT VENT VALVE RESTORATION NOTE The following steps do not require signoff in this procedure. Verification of these activities is accomplished through the referenced administrative procedure.
L.
REPLACE the Hard Torus Vent rupture disc.
M.
REMOVE fuse F22 in 1YF404 and RETURN to the EOP Kit.
PERFORMED BY:
PRINT NAME SIGNATURE INITIALS DATE/TIME REVIEWED BY:
SM/CRS Date-Time
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 38 of 42 Rev. 6 ATTACHMENT 2 LOWER RELAY ROOM LOCATIONS 10C641 A B C D 1CC658 1BC658 1AC658 1CC654 10C612 10Z656 628 10C640 A B C D 10C617 1CC653 1BC653 1AC653 1EC654 1DC658 1DC653 1BC654 1DC654 1FC654 10C614 10C613 TP1 10C613 10C612 10C615 10C616 10C659 1AC676 10Z657 10Z658 10Z659 F
C E
B A
D 10C663 10C690 G
614 613 633 10C690 632 631 630 629 628 662 B
662 A
663 B
663 A
660 661 664 665 653 B
653 A
10 - Z XXX 10C623 A B 10C631 A B 1DC652 10C618 D C B A 10C628 B A 10C621 B A 1BC652 1BC657 10C641 A B C D 1CC652 1AC652 1AC657 10C622 10C620 B A 1CC696 1CC691 1AC694 1YF401 1AC693 1AC692 1AC696 1AC691 DN UP ELEC. RACEWAY ELEV.
FRONT FRONT FRONT FRONT FRONT FRONT FRONT FRONT FRONT FRONT FRONT FRONT 1CC657 1DC657 1YF404 EOP-318 FUSE F22 LOWER RELAY ROOM
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 39 of 42 Rev. 6 ATTACHMENT 3 REACTOR BUILDING 102' ELEV. LOCATIONS
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 40 of 42 Rev. 6 ATTACHMENT 4 CONTAINMENT VENT PATHS VENT PATH NUMBER EOP SECTION #
PRESS CONTROL H2 CONTROL
<180" >180" <180" >180" 1
2 3
4 5
6 7
8 9
5.1.1 5.1.2 5.1.3 5.1.4 5.1.5 5.1.6 5.1.7 5.1.8 5.1.9 5.2.1 5.2.2 5.2.3 5.2.4 5.3.1 5.3.2 5.3.3 5.4.1 5.4.2
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 41 of 42 Rev. 6 ATTACHMENT 5 HARD TORUS VENT VALVE MANUAL OPERATION Page 1 of 2 NOTE Valves GS-HV-11541, GS-HV-4964 and GS-HV-4962 can be operated manually via hydraulic hand pumps located in the Reactor Bldg Elev. 102' (see Attachment 3).
To operate the GS valve actuator in the open direction, the "block/bypass" valve must be closed. With the "block/bypass" valve closed, the GS valve actuator cannot be operated remotely.
- 1.
In the Reactor Bldg Elev. 102' at the Hard Torus Vent manual actuators (see Attachment 3),
UNLOCK and REMOVE/ROTATE locking cover for the respective valve (Figures 1 and 2).
Figure 1 Figure 2
HC.OP-EO.ZZ-0318(Q)
Hope Creek Page 42 of 42 Rev. 6 ATTACHMENT 5 HARD TORUS VENT VALVE MANUAL OPERATION Page 2 of 2 CAUTION The Hard Torus Vent path is in close proximity to the manual actuator station. These valves should only be opened manually prior to containment pressure reaching 35 psig (rupture disc pressure) or prior to core damage. Once the block/bypass valve has been closed the respective valves cannot be operated remotely.
Rad Pro support should be available when stroking these valves manually. Local and Hard Torus Vent rad monitors/alarms can be used as an indication of area radiation.
- 1. CLOSE the block/bypass valve (see Figure 2).
NOTE Full actuator travel (open) is achieved when an increased pumping resistance is felt.
Additional pumping circulates fluid through an internal relief valve.
- 2. OPERATE hand pump (may take several hundred strokes) until increased pumping resistance is noted.
- 3. To close GS-HV-11541 and GS-HV-4964 OPEN the block/bypass valve on the manual actuator AND CLOSE GS-HV-11541 and GS-HV-4964.
___