ML20197C712
| ML20197C712 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 10/30/1986 |
| From: | Corklin B, Grod P, Underwood E SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| To: | |
| Shared Package | |
| ML20197C690 | List: |
| References | |
| TAC-61631, NUDOCS 8611060366 | |
| Download: ML20197C712 (115) | |
Text
{{#Wiki_filter:. _ _ __ _ _ _ _ _ . . - - _ _ _ _ -____ _ O REPORT OF THE DETERMINISTIC FAILURE CONSEQUENCE ANALYSIS FOR THE INSTRUMENT AIR SYSTEM tQa
~
1 n cp\,$) AWY Team Leader-O sta'aBatttiefea" ., . udK0 ' a P Attachment 8.3a-1 ik c.25U$1= . 23 Pages
i TABLE OF CONTENTS l Introduction and Overview Ef fect of a total loss of Instrument Air on the plant. i Training Requirements and Necessary Revisions to Casualty Procedure C.23 (Loss of Plant Air) . Drawing Revisions Summary Report i Sources used to locate Instrument Air supplied components Scope of investigation i Recommendation summaries Component Reports by system and alphanumeric sort. Synopsis Data Base Junction box and/or Isolation Valve for each plant component. Data Base.
~
s e (flv . 9"
=
0 ' 1
;m e_L n'- * **~
INTRODUCTION AND OVERVIEW At present the condition of the Instrument Air System (IAS) is poor. This 1
< fact has been documented by the QCI 12 interview process, Operation Assessment
' c- 82-19, the Quarterly performance report, Engineering Change Notices and many ( '; Technical Support memos. The documentation concerning the condition of the IAS is over four years old and hundreds of pages long, t This report is the result of eleven weeks of work by the IAS Deterministic Failure Consequence (DFC) Analysis ~ Committee. The committee analyzed the failure of each IAS component for its effect on the plant during power . operation and following a transient. The result of this analysis is the finding that a loss of instrument air transient is at least as significant as the December 26, 1985 loss of ICS transient. The basic recommendation of the IAS DFC Committee is that the system reliability must be improved if the plant is to. operate reliably and safely. The six most significant reliability improvement recommendations for the Instrument Air System are as follows:
- 1. Complete the installation of the Diesel Driven Air Compressor System.
- 2. Test and Turnover to Operations the Nitrogen Gas to Instrument Air '
Crosstie.
- 3. Revise C.23 (Loss of Plant Air) Casualty Procedure.
- 4. Improve the operator training for dealing with a loss of instrument air transient.
- 5. Revise the plant drawings to reflect the actual IAS configuration.
~
- 6. Install nitrogen bottle backups on the most critical piant air operated '
components, i.e.:
- a. Atmospheric Dump Valves.
- b. Component Cooling Water to the Reactor Coolant Pumps.
- c. Auxiliary Feedwater Flow Control Valves.
- d. Turbine Bypass Valves.
- e. Reconnect the retension basin outlet nitrogen bottles.
Protection of the plant for the major transient that a loss of instrument air would produce, requires the consideration of two distinctly different types of failures. These failures are the loss of the IAS supply, or the failure of a main IAS pipe. Supply failures include loss of the air dryers, compressors, aftercoolers, filters or receivers. The header failure could be caused by an accidental severing of a main IAS pipe or a failure of a major coupling like the one that occurred in 1981. This plant has had a failure of each type during power operation. Many other plants have suffered similar transients as has been shown by the Precursor Review Group. O
)
1 The method of failure analysis was to conseptually remove the air supply to each specific plant component that uses instrument air. Then the plant ,- response to this failure was analyzed for both 100% power operation and post 1 ant trip. For Class 1 components tnat are not used at power the analysis 9wasexpandedtoincludefailureofthiscomponenttofulfillitssafety function. No specific analysis was done for the air supply equipment. Failure of any single air supply component as listed below will not effect plant operation. .
- Compressors C-900A, B & C .
Receivers V-905A, B & C
+ Oryers Y-910 A, B, C & D -
- Filters F-915A, B & C
- Aftercoolers Y-901A, B & C ,
However, multiple failures of these components will result in a loss of the air system. As previously stated the installation of the diesel driven air compressor and the Nitrogen Gas to Instrument Air cross tie will mitigate this ( accident. 1 Many of the recommendations of the IAS-OFC Committee are already being implemented under MOD 123. These include the installation of 7, backup diesel , driven air compressor, testing the Nitrogen Gas to Instrument Air Crosstie, installing nitrogen backups to the Atmospheric Dump Valves, Component Cooling : Water Reactor Building Inlet Valves, Auxilary Feedwater Control Valves and ) revising the plant air system drawings. The only recommended IAS improvements not,, covered by MOD 123 are as follows:
- 1. Complete revision of C.23 (Loss of Plant Air) Casualty Procedure.
- 2. Improved operator training for dealing with a loss of plant air.
- 3. Installation of nitrogen backups to the Turbine Bypass Valves.
- 4. Reconnection of the nitrogen bottles to the retension basin outlet valves. .
It is recommended that MOD 123 'oe expanded to include items 3 and 4. Item: 1 and 2 should be handled by the Operations and Training Department respectively. W V 0 J a _ _ _ . - _ _ _ .._ _ .
INSTRUMENT AIR SYSTEM REPORT ( The overall plant effect of a total loss - of air without backup systems. On the loss of air transient, the rate at which we loose air would determine which components would start to fail first. The important thing to remember is that we are going to loose major portions of the plant equipment. The following equipment will be affected in such a way as to cause an automatic Reactor Protectierr System trip or immediate operator action to manually trip the reactor.
- The Ma_in Feedwater Pumps stop.
- The Main Feedwater Valves fait as is.
- The Component Cooling. Water Valves to the Reactor Building fail ,
closed.
- The Control Rod Drive Cooling Water Valves to Reactor Building fail ,
closed. -
- The Auxiliary Feed Flow Control Valves fail open.
h - The Atmospheric Dump Valverfail. closed. (~ ' - The Turbine Bypass Valves. fail closed.
- The Main Steam to Auxiliary Steam Reducer Valve fails open.
- The Pressurizer Level Control Valve fails closed.
. The Reactor Coolant Pump Seal Injection Valves fails open.
On a loss of instrume'nt Kir, the Main Feedwater Valves lockup in place. The Main' Feedwater Pumps start running back because there will~ be no air signal into the Lovejoy Control System to hold open and control the Governor Steam Admission Poppet Valves. Main Feedwater Flow will decrease faster than the control rods can be driven in by the ICS given Taverage errors or cross limits. The Reactor Protection System will automatically trip the reactor on high RCS pressure of 2300 psig. Even if this did not occur, then the loss of Component Cooling Water and Control Rod Drive Cooling Water to the Reactor Building will force the operator to manually trip the reactor. This action is required by Casualty Procedure C.8 (Reactor Coolant Pump Malfunctions) and by C.5 (Loss of CRD Cooling Water). O *
-. a: . _ _ . ; ..
I. - At this point the reactor has been tripped, CCW is lost to the Reactor i Building and the Reactor Coolant Pumps have been manually tripped. The operator manually trips the following equipment:
. Reactor
. Turbine
. Main Feed Pumps
. Heater Drain Pumps These actions result in a natural. circulation cooldown without control of the Main or Auxiliary Feedwater Pumps.
As the transient continues the Letdown System will isolate on high
~
temperature. The Seal Injection Valves fails open. The Pressurizer Level Makeup Valve fails closed. The primary system would have started out with a average temperature of 582*F before the trip. Within a few minutes, several things will occur. The post-trip secondary pressure will settle out~ at 1050 psig (lowest Main Steam Code Safety Valve setpoint). This corresponds to a Tsat of 552*F. The RCS will cooldown by about 30*F. Operator training provides the following rules:
- l'F = 5" in Pressurizer -
- 24 gallons / inch ,in the Pressurizer With the normal pressurizer level at 200", a 30*F cooldown of the Reactor 1 Coolant System will shrink the presstrizer by 150 inches.
1 In this scenario, the isolation of letdown flow would have helped to maintain the pressurizer level. With the normal level Makeup Valves to the pressurizer failed closed and the Seal Injection Valve failed open, the RCS Makeup will be approximately 50 to 100 gpm from the seal injection (2 to 4 inch increase inr the pressurizer level per minute). There will be a period of time that the pressurizer heaters will be lost. The Reactor Coolant System pressure will be very low from the decrease in pressurizer level, minimum makeup, and no pressurizer heaters. The Makeup Tank level will be low and decreasing. The-suction must be switched to the Borated Water Storage Tank or the Makeup Pump will be destroyed. The folicwing secondary system controls will now lower our already low RCS pressure. The Turbine Bypass and Atmospheric Oump Valves fail closed. This places all control of the OTSG"s secondary side pressure with the Main Steam Line Code safeties. We will assume at this point that the Main Steam safeties do not stick open. However, there is some probability of failure of these valves after repeated or prolonged lifting (this would cause an extremely rapid cooldown). Our major concern at this time is the effects the Auxiliary Feedwater System is going to have on the cooldown rate and RCS pressure. When the Main Feedwater Pumps ran back and the Reactor Coolant Pums were tripped the Auxiliary Feedwater Pumps stirted immediately. m W u. b E hb$2d a - a J
- - - - - - - , . ---g--,,,. - + - - - - -.
The Auxiliary Feedwater System will be pumping cold -(about 70*F) water from r the Condensate Storage Tank at maximum flow rates to the OTSGS. The Auxiliary !i Feed Flow Control Valves fail open and the operator has no control except to trip the pumps. The Steam Generator levels will continue to rise until water i spills into the steam lines. The combination of cold Auxiliary Feedwater, , I maximum flow rates and no level control cause a very rapid cooldown of the l RCS. The steam driven Auxiliary Feedwater Pump and the Main Steam to i Auxiliary Steam Valve failing open also contribute to the rapid cooldown. ,, Assuming no operator action, the rapid cooldown of the RCS will drain the pressurizer. This may cause a loss of subcooling. The RCS pressure will reach the Safety Features Actuation Setpoint. SFAS automatic actions will l further compound the problem. ., We will have'by now violated our Tech Spec cooldown limit of 100*F/ hour and . j placed the Reactor Coolant System into the Interim Brittle Fracture region of l the.cooldown curve. The emergency operating procedures required the RCS be ! depressurized below the curve and temperature held constant for three hours. l We have no control of cooldown and will violate these requirements. When SFAS l actuated, the High Pressure Injection started. This will refill and l repressurize the RCS. This will again violate our PTS operating requirements. When we lost subcooling we stopped subcooled natural circulation and uncoupl'ed the OTSG's from the primary system. This could also reheat the RCS and repressurize it to again violate PTS. At this time, our core cooling will be provided by the 1 High Pressure Injection System. Thig_will dump priman/ reactor coolant on to the Reactor Building floor, w The- continuing flow of Auxiliary Feedwater to the OTSG's spills into the Main Steam lines and will cause- severe- water hammer and possible damage to the Main Steam System and its auxiliaries. Given the same transient but starting with the reactor trip point, and taking only the operator actions possible from the Control Room for the loss of instrument air, produces the following scenario. The Reactor Coolant System inventory would be controlled by the High Pressure Injection System. This would maintain pressurizer level and subcooling. At the RCS Tcold temperature of 525'F, the operator would be required to trip both running , Auxiliary Feedwater Pumps (requirement of Emergency Operating Procedure E.05, ' Excessive Heat Transfer). This now places the operator in a loss of heat transfer Procedure E.04. This procedure directs the operator to initiate High Pressure Injection cooling. This requires the operator to open the EMOV and , provide maximum High Pressure Injection Flow. The flowpath would be into the i RCS cold legs, out the pressurizer to the Reactor Building Pressurizer Relief - - ,
! Tank through the rupture disk and on to the Reactor Building floor. .
1 O ,
-- 3,
' .QA 'ky_ '
- _ j,
- a- -
- l Given the same transient but starting with the reactor trip point on loss of I air, and taking all the operator actions inside and outside, the Control Room i and using 13 operators (average crew), produces the following scent-io. The
'! l Shift Supervisor would assume the role of the Emergency Coordinator. The Senior Control Room Operator would oversee and coordinate the other 11 operators. One Control Room operator would be dedicated to the primary system maintaining inventory. Another Control Room operator would be dedicated to Auxilary Feedwater flow control, with the third Control Room operator on OTSG pressure control. Two non-licensed operators would be dispatched to restore plant air. Two non-licensed operators would be dispatched to locally control the Auxiliary. Feed Control Valves and communicate with-the Control Room via the sound powered headphones. Three non-licensed operators would be sent to control the Turbine bypass valves (preferred) or Atmospheric Dump Valves. Two operators on the steam valves and one on the phone to communicate with the Control Room to maintain secondary system pressure using the Control Room instrumentation. Another non-licensed operator would be dispatched to the main steam reducing station to control it manually. Communication and coordination with this group of operators would be critical and very difficult with the present plant communication system.
! The plant wculd be in a natural circulation cooldown mode and control of the vital systems would all be manual. All responses, including natural circulation, would be very slow and require long periods of time to produce any result. Overcooling and overheating of the RCS may occur and could easily switch back and forth. This is due to the long lag time between action and results and corrective action. This would be a .very large and difficult: .F burd a on the most experienced operatars. . Hands-on training and. practice
(, drills with an entire crew should be established. The discussion so far has been limited- to our most vital systems. However, there are several other casualties that would occur in the secondary system. These are not vital systems in the eyes of nuclear safety but are very i important to plant and personnel safety. The shell sides of all the Feedwater Heaters would drain to the Condenter. When the ficw stops through feedwater side of the heaters, they will depressurize and wate~r hammer will occur in the piping. The Main Feed Pump mini-flow valves opening will complicate the water hammer by adding to the depressurization of the feedwater piping. The Hotwell Makeup Valves fail open and fill the Hotwell from the' CST. The CST level could decrease low enough to break the Condenser vacuum because the Hotwell Reject Valve fails cicsed and level control is lost. The other support systems, Gland Sealing Steam,. Seal Water, Demin Water, Service Water, Cire Water and Site Orainage System fail in such a way to provide maximum flows and pressures in their systems. The Gland Sealing Steam Valves fail open and could blow .the Gland Steam Rupture Disk. The Seal Water Tank will overflow. The Service Water Clarifier will overflow and the Makeup Demins will not be able to makeup to the CST. We may have to use the Folsom South Canal water to feed the OTSG's if the CST is drained by a combination of The Auxiliary Boilers will not be l the AFW pumps and the make-up valve usage. i O r- ,, 7 ; L , q
' = d' i I E J ** ,,,g I
. func'tional so our Auxiliary Stem System loads will be supplied for a short period of time from the OTSG's. Once the Auxiliary Steam is gone, the Main Condenser vacuum will be lost. If there was an OTSG tube leak, radioactive 1 steam will be released into the environment through the Atmospheric Oump J' - Valves and Main Steam Safeties. Radioactive liquids could also be released K / . offsite via the failed open Retension Basin Discharge Valves. We may also I overflow the retension basins if we do not stop makeup to the Cooling Tower basin.
t The Reactor Building Sample Valves fail closed on loss of air. This will prevent monitoring of the Reactor Building via R-15001 A,B,C,0 and E. Failure of these valves while the sample pumps run will cause the system to overheat and damage the blowers, i All of these events add to the confusion and operator work load. This transient would be worst than the Rancho Seco December 26, 1985 transient because Auxiliary Feedwater Valves go 100% open versus 50% and the plant will be in'a natural circulation cooldown. Core cooling may be provided by High Pressure Injection and blowdown through the EMOV. 1 Very little is properly documented in the procedures, and e~ven more j importantly, there is insufficient training. An overall view of what is going to happen, and how to recover from it,' should be in the procedures and , included in upgraded training. m e a . l i l
,. .. ,=,. .
$ 0 50)) 2.; ..u ., i
_, - , - -- -,m --g --- -- w,- y - , , - - -
,e--- ,, - , ---,cv e
i Training and Revisions of C.23 (Loss of Plant Air) One of the findings of the Loss of Instrument Air study was the lack of i ( . a functional casualty procedure. An entire rewrite is necessary to l provide adequate guidance to the operator. This new procedure should guide the operator. through various types of Plant Air system failures. It should also provide information on which back-up systems will overcome various air system failures. Information should also be available on how the majority of valves fail and how to restore the system back to service. Additional sections should cover how to; Control Air operated valves that have manual operators, start and run ! the Diesel Driven air compressor, operation of the nitrogen gas to l instrument air cross-tie and the arrangement of local nitrogen bottles
- for back-up supply to individual selected valves.
.The following revisions should be made to C.23 (Loss of Plant Air System.)
Include the valves by system and list their failure modes. O Guidance on the use of the Diesel Driven Air Compressor. Guidance for the use of the Nitrogen gas to Instrument Air Cross-tie. 1 \ Guidance for the Nitrogen bottle back-up systems and indicate which
! valves they will operate.
Guidance for dealing with a less of.the Diesel Driven Air Compressor 1 gj and the Nitrogen gas to Instrument Air cross-tie. The new C.23 (Loss of Plant Air) should cover the following in this' order: ,
- 1. Recognizing a loss of Plant Air.
- 2. Diagnosino the loss of service air or instrument air.
For loss 'of Instrument air close the Instrument Air Supply valves to loads outside the Turbine Building (IAS-009 and IAS-023). For loss of service air close or verify close the Priority valve.
- 3. Recognizing a loss of the main system components or a break in the main header.
Actions: Verify running or start t,he Diesel Driven Air Compressor. If Diesel Driven Air Compressor malfunctions, use the Nitrogen gas to Instrument Air cross-tie. _ If the Nitrogen gas to Instrument air cross-tie faiIs, operator action O to control the plant with the selective valves that have nitrogen bottle back-ups should be explained.
.,,-,_,,y. .
7 $ ;J
- _ . - -_- . _- w_ _ . - -
- - . . r __ .- -. - -
. _= - .. -- _ -
(Continued)
/ The casualty procedure C.23 refers to A.40 (Plant Air System) for restoration of Plant Air. The guidance provided in A.40 is O insufficient. A new section should be added to the restoration of plant air. This section should include precautions for the restoration of air to critical plant components that may change state when air is !
restored. , When the final modifications are complete and the procedures.are rewritten, the operations department should receive additional training. This training sh'ould include the use of all the of l modifications made during this outage. Further training should include l control of the plant with various failures and expected plant responses
! to these failures. ~
i Add the following valves to C.23 (Loss of Plant Air) Valve 10 Name Failure Rode FV-98105 sws Service Water "A" Filter Back Flush As is TV-83301 ccw Turbine Plant CCW H2 Side Seal Oil Cooler Outlet. Open
~~ - TV-84001 ccw Turbine Plan 1,CCW H.2 Side Seal Oil f Open Cooler Outlet j,
FV-98106 sws Service Water "B" Filter Back Flush As. i r _ FV-98119 sws Servics Water "C" Filter Outlet As is 1 FV-98118 sws Service Water "B" Filter Outlet As is FV-98117 sws Service Water "A" Filter Outlet As is FV-98103 sws Service Water "C" Filter Inlet As is FV-98111 sws Service Water "C" Filter Back Flush inlet As is FV-98110 sws Service Water "B" Filter 8ack Flush Inlet As is 1 FV-98109 sws Service Water "A" Filter Back Flush Inlet As is FV-98102 sws Service Water "B" Filter Inlet As is FV-98101 sws Service Water "A" Filter Inlet As is ' _ . , , . . . ~ . , . 1 t s .
* "'En , ..*J
l l Add these valves to C.23
/ Valve 10 System Name Failure Mode l 1
HV-66315 RWS R8 Drain Accum Tank Outlet Closed SFV-53503 HVS R8 Purge Inlet Closed SFV-53604 HVS R8 Purge Outlet Closed PV-35048 ASC Condenser Deaeration Stm Closed PV-34509 OMW Sluice Pump Discharge Closed - FV-30106 HPT Main Steam Governor Valve Downstream Drn Open FV-30108 HPT Main Steam Governor Valve Downstream Orn Open FV-30109 HPT Main Steam Governor Valve Downstream Drn Open FV-30121 ESS Reheater Extraction Steam Supply Closed FV-30122 ESS Reheater Extraction Steam Supply Closed XV-30225A MSS Main Stm to Reheater Control Closed , XV-302258 MSS Main Stm to Reheater Control Closed XV-30225C MSS Main Stm to Reheater Control Closed XV-302250 MSS Main Stm to Reheater Control Closed FV-30289A MSS Main Stm to Reheater Purge Valve Closed FV-302898 MSS Main Stm to Reheater Purge Valve Closed 4 FV-30289C MSS Main Stm to Reheater Purge Valve Closed FV-302890 MSS. Main Stm to Reheater Purge Valve Closed FV-31208 FWS Heater Drain Pp. Recire. Open ! FV-31747 FWS Feedwater Pp. Seal leak off Open
'rg FV-31748 FWS Feedwater,Pp. Seal leak off Open POV-31236 MCM Heater Drain Pp. Seal water Open kT/ POV-31235 'MCM Heater. Orain Pp. Seal water Open
. PV-32453 MSS Pegging Steam to fourth Pt. -
heater Close PV-32245 MSS Second Pt. Pegging Steam Close PV-32244 MSS Second Pt. Pegging Steam Close PV-32254 MSS Pegging Steam Valve to fourth Pt. Close HV-30792 MSS F.W.P. High Press Stm. Chest Orn. Open HV-30791 MSS F.W.P. High Prass Stm. Chest Orn. Open HV-30783 MSS F.W.P. Low Press Stm. Chest Orn. Open HV-30782 MSS F.W.P. Low Press Stm. Chest Orn. Open HV-30781 MSS F.W.P. Low Press Stm. Chest Orn. Open HV-30780 MSS F.W.P. Low Press Stm. Chest Orn. Open PV-360148 MSS M.S. to Aux. Stm. Reduces As-is PV-36014A MSS Main Stm. to Aux. Stm. Reducer Open FV-20575 FWS Hi Press F.W. Start-up Feedwater. Loop "A" As-is FV-20576 FWS Hi Press F.W. Start-up F.W. As-is
~
control loop "B" TV-84514 HGS Gen. H2 Coolers, H2 PCW l ' Outlet Open FV-95008 CDS Waste Wtr. Disp. R.H.U.T. Discharge Close l FV-20525 FWS Main Feedwater control loop -l "A" As-is O I l { 9 -a y' ..,, , i
* ** :. . k * . #
l
l Add valves to C.23 (Continued) Valve 10 System Name Failure Mode i FV-20526 FWS Main Feedwater control loop "B" As-is FV-30118 MSS Main Steam chest cross-tie drain Open FV-30129 MSS Main Stm. Hi Press tur. first stage drn. Open Main F.W.P. Mini flow FV-317218 FWS Open FV-317208 FWS Main F.W. Pump Miniflow Open FV-31720A FWS Main F.W. Pp. Mini flow Open FV-31721 A FWS Main F.W. Pp. Mini flow Open PV-20562C MSS Main Stm. Atmos. Dump Vlv. loop "B" Close PV-205628 MSS Main Stm. Atmos. Dump Viv. loop "B" Close PV-20562A MSS Main Stm. Atmos. Dump Vlv. loop "B" Closa PV-20571C MSS Main Stm. Atmos. Dump Viv. loop "A" Clos,e PV-20571B MSS Main S.m. Atmos. Dump Vlv. loop "A" Close PV-20571A MSS Main Stm. Atmos. Dump Viv. loop "A" - Close PV-20566 MSS Main Stm. Turbine Bypass Valve loop "B" Close
._ PV-20564 MSS Main Stm. Turbine Bypass Valve loop "B" Close PV-20563 MSS Main Stm. Turbine Bypass E' Valve loop "A" Close' PV-20561 MSS Main Stm. Turbine Bypass '
Valve loop "A" Close PV-30103 GSC Gland Stm. spill to sixth Pt. F.W. Heater Close FV-99549 OMW Make-up Demin Recirc. for M.U. Train As-is PV-30702
- ASC Auxiliary Stm. to F.W. Pp.
Turbine- Close l FV-31207 FWS Heater Orain Pp. recire. Open l PV-30306 GSC Gland Stm. Reg. to L.P. Turbine Open i P-712 SIM Reactor Coolant Chem. Add. I Positive Dispiccement Boric Acid Pump No flow PV-90508 IAS Service Air Header Isolation 1
. Valve Close
- HV-2058B TSS Sampling System Main Steam Sample Close PV-99228 OMW ,Make-up Demin. Cation Bed Inlet valve Open PV-20564 ~ MSS Turbine Bypass Valve loop "B" Close HV-544732 HVS Conference Room Exh. Fan Iso. Close NSEB Essential Damper HV-50104 HVS Open O -
,,,q.- . . ,
c; q q -_ , j l s . L . -E V .1 % : a 1 1
~ '
Add valves to C.23 (Continued) System Name Failure Mode; Valve 10 (( HV-50105 HV-50126 HVS HVS NSEB Essential Oamper Normal AAU U5018 Isolation Open damper Close HV-50127 HVS Normal AHU U501A Isolation damper Close HV-50188 HVS AH-N-28 Outlet Isolation damper Open HV-50189 HVS AH-N-2A Outlet Isolation damper Open HV-50158 HVS AH-N-28 Inlet Isolation damper Open HV-50157 HVS AH-N-2A Inlet Isolation damper Open HV-50136 HVS AH-N-28 Inlet Isolation damper Open HV-50135 HVS AH-N-2A Inlet Isolation damper Open HV-55310 HVS Normal AHU Return Isol. damper Close HV-55307 HVS Normal AHU Return Isol, damper Close FV-98107 SWS Service Water "C" Filter Backflush Outlet As is FV-98115 SWS Service Water "C" Filter Rinse As is FV-98114 SWS Service Water "B" Filter Rinse As is FV-98113 SWS Service Water "A" Filter Rinse As is FV-36601 ASC Auxiliary Boiler Forced Draft Fan Inlet (E-365) As is. HV-22010 PLS Letdown Orifice Block As is HV-220ll PLS- Letdown Orifice Bypass As is LV-36507 ASC Auxiliary Boiler Feedwater Inlet to Boiler (E-365) Closed FV-36101 ASC Auxtliary. Boiler Forced Draft
. Fan Inlet (E-360) As is
- LV-36007 ASC Auxiliary Boiler Feedwater Inlet ta Boiler (E-360) Closed' FV-36562 ASC Auxiliary Boiler Automizing Steam to Boiler (E-365)
FV-36061 ASC Auxiliary Boiler Automizing Steas to Boiler (E-360) Closed LV-63002 RWS CWHUT to BA Evap Closed HV-20593 TSS OTSG Sample Closed HV-60608 *RWS CR Rec Tank 3-Way Inlet Valve Valve Fails to "B" Tank Fails to "B" Tank HV-22304 PLS LD Filter N2 Backflush Open PV-33004 MCM Condensate Seal Water Supply Open PDV-34305 MCM GSC/ Air Ejector Bypass Valve Open FV-97903 SWS Clarifier Desludge Valve Closed RV-65514 WGS Waste Gas Discharge Block Closed FV-73903 SCA Circ Water /PCW. Chlorine As is FV-73904 -SCA Cire Water /PCW Chlorine As is O' - - , . . , , _ . . , , .
" .A'M ia w
Add valves to C.23 (Continued) Valve 10 System Name Failure Mode ( se FV-73905 SCA Circ Water /PCW Chlorine As is FV-40209 SCA Circ Water Basin Chlorine As.is FV-40210 SCA Circ Water Basin Chlorine As is FV-40211 SCA Circ Water Basin Chlorine As is FV-40212 SCA Circ Water Basin Chlorine As is Cire Basin Level Control As is LV-40001 PCW LV-31756 MCM Feed Pump Seal Return Tank Closed TV-86511 TCW Feedwater Pump Turbine LO Cooler Open TV-86512 TCW Feedwater Pump Turbine LO Cooler Open CV-40003 MCW Circ Water Tower Blowdown Closed FV-74008 SCA Service Water Eductor Flow Valve Closed HV-22024 PLS Letdown Sample Isolation Closed LV-60411 RWS Flash Tank Level Controller Open LV-69601 RWS Misc Waste Evap Inlet Closed HV-20587 MSS Main Steam Sample Closed HV-20588 MSS Main Steam Sample Closed HV-60608 RWS CLNT Radwaste 3-Way Inlet Fails to to Receiver Tanks the "B" Tank HV-22304 PLS Letdown Filter N2 Backflush Open HV-60908 RWS CLNT Radwaste 3-way Inlet Fails to to Holdup Tanks the "B" Tank ' FV-65513 WGS Waste Gas Decay TK Outlet Closed
/7 POV-31745 MCM Feed _ Pump, Seal Leak Off Feed Pump Seal Leak Off Open Open POV-31746 MCM
~f<V' - UV-60412 PLS Flash Tank 3-Way Inlet Fails to Flash' Tank HV-23504 PLS Makeup Tank Vent Valve Open SFV-53610 HVS RB Purge Equalizing Valve- Closed HV-20594 TSS "B" OTSG Steam Sample Closed SFV-92520 NGS Nitrogen to PRT Closed SFV-66309 RWS RB.N0rmal Sump Isolation Closed SFV-72502 RSS PRT Gas Sample Closed SFV-70002 RSS Pressurizer Sample RB Isolation Closed FV-67701 RWS Misc Waste Evap Feed Pump Outlet Closed FV-36510A ASC Auxilary Boiler Fuel Oil Inlet Closed (E-365) LV-37306 ASC Auxiliary Boiler Aux Bldg Steam Closed Condensate Tank Level Control , FV-97902 SWS Service Water Clarifier Closed Desludge and Backflush - - LV-69601 RWS Misc Waste Evap Inlet Closed e O m 7- m , m , x ., 3 ~
- i ai W ( , : ..
co m- ,r 'o u r ~
Add valves to C.23 (Continued) Valve ID System Name- Failura Mode
.. D FV-67702 RWS Misc Waste Evap Feed Pump Discharge Closed
'-(' )d FV-30107 HSS Main Steam Governor Valve Open Downstream Drain LV-98601 DMW Makeup Demins Degassifier Inlet Open PCV-30779 GSC Bland Steam FWP Turb Sealing Stm Open HV-53502 HVS R8 Purge Equalizing Valve Closed SFV-53612 RSS R8 Hydrogen Sample Suction Closed HV-53802 WGS Waste Gas H2 Purge Discharge Closed HV-54726 HVS Control Room HVAC Closed HV-5472S HVS Control Room Supply from AH-A-1 Closed HV-54724 HVS Control Room Supply from AH-1-A Closed HV-54717 HVS TSC Normal Air Handler -
Closed HV-54718- HVS TSC Supply from AH-A-2 Closed HV-54719 HVS TSC Return to Normal AHU Closed HV-54720 HVS TSC Return to Normal AHU Closed HV-54721 HVS Control Room Return to AH-A- Closed HV-54723 HVS Control Room Supply from AH-A-1 Closed HV-54722 HVS Control Room Return to AH-A-1 Closed HV-54727 HVS Toilet Exhaust Fan Isolation Closed HV-54728 HVS Toilet Exhaust Fan Isolation Closed HV-54729 HVS Kitchen Exhaust Fan Isolation Closed HV-54730 HVS, Conference Room Exhaust Fan Isol Closed HV-54731 HVS Conference Room Exhaust Fan Isol Closed HV-53003 HGS Waste Gas H2 Purge Discharge Closed SFV-53612 HGS R8 Mgdrogen Sample Suction Closed RV-65117 WGS Waste Gas Surge Tank Outlet Closed {. - FV-32107 FWS High Pressure Feedwater 1st Closed. Point Extraction Steam Non-return , Check FV-32207 FWS High Pressure Feedwater 2nd Closed Point Extraction Steam Non-return Check FV-32241 FWS High Pressure Feedwater 2nd Closed Point Extraction Steam Non-return Check FV-32203 FWS High Pressure Feedwater 2nd . Closed i Point Extraction Steam Non-return j Check u FV-32242 FWS High Pressure Feedwater 2nd Closed Point Extraction Steam Non-return Check FV-32307 ESS Low Pressure Feedwater 3rd Closed Point Extraction Steam Non-return Check FV-32308 ASC Low Pressure Feeowater 3rd Closed
-Point Extraction Steam Non-return Check TV-77206 RSS Chemistry Sampling Chilled Water Down Temperature Controlled Position _l 0 _.
y y 3 7 ,- - l 7"= wy !.a 3 .p: m
.. a .
l
. 1
~~
,.._.m __
.___,._l__-_._ . _ _ _
- _ _ _ , _ _ _ . ,
Drawing Nonconformance Report
, . , s Changes for.M-590 SH.1
- (
The following is a list of changes,. errors, and additions to M-590 SH.1: Location 1-G ' The work R00 should be RAD Monitoring. Location 6-E The Panel No.'s are wrong. HADMA should be H40MA and HADME should be H4DME. Location 7-H There is a valve not shown on print. In the field, the valve is in the line that goes to the Turbine Orain Valves'(Print says To Cold Reheat Man.) This valve has a metal tag that says IAS-528. There is another valve on the same line with the same No. (IAS-528). Location 7-G The print has two valves with no No.'s on them. (Give valves- a number.) location 10-C The air supply for Auxiliary Feedwater test valve is.not shown. The main header has a valve tagged IAS-032. . The valve to FV-31855 does not have a number. The header 1 from IAS-032 also goes to the Tridium Evaporator. The valves at the Evaporator are numbered IAS-030 and IAS-035 and are not shown on the print. Location 6-F There is a Nitrogen supply tied into the Instrument air f/;. header at the CTrculating water pumps. This system (1 AA.]s should be removed, including the old distribution header ' to the 4 circulating water pumps. Location 9-1 The metal valve tag number says IAS-553 and the print says IAS-536. Location 13-B The IAS valve to the FV-74409 (Circulating water acid day tank T-762.) Fill valve needs a number label. Changes and Additions to M-591 l Location on M-591 10-B The IAS-567 valve & check valve are all still in place & tied into the Nitrogen system. This hook up is located West of "A" Circulating water. pump. (See M-590 sh 1 6-F) Revise M-571 sh 2 to show that FISL-33610 alarms on H2DP not H2DM. Revise M-532 sh 1 [0-6] to show the "A" side High Pressure Feedwater Start-up Control Valve as FV-20575 not PV-20575. O O E' l 'h g
- .u_, m f t' s j
_..__....[.' . . , . --
NCR Drawing Changes ( Relabel HVAC Damper Supply Valve 1AS-040 to IAS-038 on M-340. s The air supply to FV-95301 is labeled FV-95301 HI and should be labeled as on IAS valve and shown on P&ID M-590 sh 1. Lovejoy "A" & "B" BFP A & B Main Feed Pump Control valves, are not shown on M-530 sh 3. .4 Auxiliary Generator Hydrogen Pressure PT-84515 on P&ID, M-591 E-2, the controller for regulators, is shown incorrectly. Pegging Steam to 4th Point Heater - Change P&ID, M-534 from Turbine trip to low impulse pressure from FSL-32453 on M-530 sh 3 (F-6) (PV-32453, PV-32245, PV-32244, PV-32254). REVISIONS Valve Action to be taken , SFV-46204 Change to HV on P&IO, M-543 sh 1. Relabel BLPB in , Control Room. - l SFV-46906 Change valve to HV on P&ID, M-543 sh 4. Relabel BLPB in l Control Room. . SFV-46908 Change valve to HV on P&ID, M-543 sh 4. Relabel BLPB in ! (f ' \0 Control Room. SFV-46014 Change valve to'HV on P&IO, M-543 sh 1. _ Relabel.BLPB'in Control Room. PV-32452 Change to PV on P&IO, M-534 not TV. PV-32451 Change to PV on P&IO, M-534 not TV. , 1 The Operation of the Reheater Steam valves FV-30289A thru 0 and XV-30225A thru 0 is not shown correction on the P&ID's. The operator will select a warm up mode from the reheater control panel in the Control Room. The operator selects the Ramp Mode. 'A splid state timer circuit will start a 90 minute ramp. l l O --x, , . - , . G+ ,
* %s.h* b 2. ,g
(Continued)
. The control signal for XV-30225A thru 0 is from a single E/P converter,
- (,(T located at "D" Reheater. The E/P air signal goes to all 4 valves.
O Valves FV-30289A thru 0 are controlled by Solenoids. When valves XV-30225A thru D (small valves) get full open at the end of ramp time, the open switch on the valves will start Agastat timers. The timers will run for 30 minutes and then give a signal to open
.V-30289A thru D (big valves). These valves-are not modulating valves, they are either closed or open.
The valves will stay in this position until the open switch on XV-30225A thru D changes position. These valves will not open again until they have another signal from the agastat timer. The timer will have to go through another 30 minute cycie.
Reference:
P& ids, M-531 sh 1, sh 2,. sh 4, and sh 5. - 4b 4 I~ ng.-, i kk#' e 'e .. f Y 0 *- *
'.si.4
. sE ,f j l
e --y. - n--v. +1 m - - - - , y --, - ,-~- - , - -m--,-~, - ~ ~ - -- - - ~ - - - w -- rm ,w--
SOURCES USED FOR THE IDENTIFICATION OF INSTRUMENT AIR SUPPLIED PLAN COMPONENTS . , J' 1. Haster Equipment List.
'( 2. Operational Assessment 82.19.
- 3. Plant P& ids.
- 4. Instrument Air Multitude routing index. .
- 5. Drawings FSK-IMT-001 thru 012.
- 6. Auxiliary Bldg. Junction Box connections.
- 7. Turbine Bldg. Junction Box connections. .
- 8. Local observation of all air operated valves, controllers transmitters, and Air operated Dampers.
- 9. Instrument shop tubing run index.
1
- 10. Operating Procedures.
1.1. Casualty Procedures -
- 12. I-034 Instrument Air alowdown
<" 13. Surveillance Procedures ~
h. I( - E es e .e d . e
. , , , _~. , , _ -- -
m-- - - ---
-Equi 6 ment Analyzed By the IAS-OFC 3
Instrument air supplied components that.are part of the PASS or letdown filter back flush system were not analyzed because they were being modified during this investigation.
~
Devices that are s'upplied by previously analyzed components were not analyzed as a separate item. These devices only indicate what another air operated
- component is doing. Exampics of these types of devices are pressure Indicators... flow recorder,s and some level indicators.
Electrically operated solenoids that control instrument air supplied components were not analyzed. All of the electrical failures of individual components are covered by the electrical DFC groups. Every valve controller was investigated to determine its failure mode. It was verified that a loss of air to the controller results in the same failure
~
consequence as a loss of air to the valve. The list of controllers is as follous: , Valve and Controller LC +, LV - 32103 - - LC &E LV - 33223 ' LC + LV - 32145 l PIC +- PV - 36014 :
. PIC + PV - 32244 -
l 7N J b.-/ PIC + PV + 32249 1
'l FT + FV'- 31720 FT + FV ., 31721 -
PC + PV - 20572 TC + TV - 30319 PC +, PV '30101 a ; PC + PV - 30103 LC + LV .31110 (LV-31110 A&B) LC + LV - 32403 PIC + PV - 30702 LC. & LV - 30204 ~
. :.C + tB'- 30208, LC w LB - 31013 (LV-31013 A&B)
LC'+ LB - 31109 (LV-31109 A&B) Lc'+ LV - 31014 (LV-31014 A&B) - PIC + PV - 35048 LC + ~LV .32203 i LC + LV - 30203 l LC + LV - 30204 PC 4 PV - 30306 LC + LV - 32146 LC + LV - 31112 (LV-31112 A&8). LC + LV - 31111 (LV-31111 A&B) I l s -
~
, U.
- .nc : -
ud:5Ty a
.>. L .3
Valva and Controller (Continued) LC + LV - 32224 ( y- LC + LV - 30211 sm s/ LC + LV - 32204 LC + LV - 31016 (LV-31016 A&8) LC + LV - 31015 (LV-31015 A&B) g LC + LV - 32104 LC + LV - 32224 - LC + LV - 31208 LC + LV - 32304 TIC + TV - 77206 POIC + POV - 34305 FIC-FV-FT - 35109 PDC - POV - 31236 PIC - PV - 33004 LC + LV - 30207 LC + LV - 32505 LC + LV - 32503 PC & PV - 34509 TIC - TV - 86511 , TIC - TV - 86512 LIC - LV - 31756 POV - POV - 31745 - PIC + PV - 32453 i LC + LV - 32605 H LC + LV - 32603 e- LC + LV - 32403 "" i PC 4- PV - 3010T
+ PC + PV - 30305 TC 4- TV - 30301 - ? PC + PV - 30303 TC + TV - 30302 PC +- PV - 30304 FT+FIC-FV - 31721 TIC + TV - 80004 PC + PV - 31748 J
PDC + POV - 31746 , l FT+FIC+FV - 31720 LC + LV - 30208 LC + LV - 32604 LC + LV - 32606 LC + LV - 30216 TIC + TV - 84514 PIC + PV - 32454 - LC + LV - 31016 (LV-31016 A Normal & 8 High) LC + LV - 30212 LC + LV - 32404 PDC + POV - 31747- ,. LC+LC-LT - 98601 TIC + TV - 46012 F
- y . .J
- -- - t a k . 12 . . j _ ,
I l I - , _ - _ - -, -- , , . - - , ,
Valve and Controller (Continued) r 1 LC +. LV - 37306
- (rh LIC + LV - 63002 l
' d LIC+LT+LV - 69601 l LIC+LT+LV - 69902 LC + LV - 98001 TIC + TV - 61301 TIC + TV - 69803
- LC + LV - 30215
- LC + LV - 35023 (LV-35023'A, B, C,)
- Note: Hot well make-up valves LV-35023 A&B fail open and Hot well reject valve LV-35023 C fails closed on loss of air to level controller. i e
This is the same failure mode ~on loss of air to each individual valve. l Given these exceptions, every other active instrument air supplied component at Rancho Seco was analyzed using the techniques defined in QCI 12 Rev.1. Then a one or two page report was written on these components as per QCI 12 Rev.1 Attachment & Enclosure 1. The folTowing is a summary of the recommendations 'from each of the , l reports. The summary and the full reports are sorted by system and are in alphanumeric order within each system. e e e e 5
-\
l 23-T. . . *y 3 Y '.h.jj,;hs'yf f i t-- - . . . ~ , - . _ _ ~ , _ , _ _ y ._ _ , _ _ _ _
il i l l INSTRUMENT AIR SYSTEM-SERVICE AIR SYSTEM' l SYSTEM-STATUS REPORT '
~
.. 7 : " a ru; .
h~* E':i} 3.q. i 57 71 ?";;m." l f s")U;g1 ; a.
,4 1 ij.t 2 2 ,
, &l
- W Attachment 8.3a-2 .
<,,2n,- .
37 Pages .- -
,' .ni; m w % d
s ) l INSTRUMENT AIR SYSTEM ! SERVICE AIR SYSTEM SYSTEM STATUS REPORT , PREPARED BY: DATE: SYSTEM ENGINEER _ O INTERIM RELEASE: PAG CHAIRMAN DATE REV DATE: DEPUTY GENERAL MANAGER NUCLEAR TESTING APPROVAL: DATE: SYSTEM ENGINEER O - DATE: TEST REVIEE GROUP RESTART APPROVALS: DATE: SYSTEM ENGINEER DATE: LEAD SYSTEM ENGINEER DATE: PERFORMANCE ANALYSIS GROUP DATE: DEPUTY GENERAL MANAGER NUCLEAR O . i Uncontrolled ~
- ._a..:e... ..
- y ,-- -.- y y. -74 -- - g -m- w-- w wv--
~
TABLE OF CONTENTS SUBJECT PAGE 1.0 Executive Sumary 1_1 2.0 System Function Description 2-1 2.1 General Description 2-1 2.2 Sources 2-2 ' l 3.0 Test Review Later
~
4.0 Review of Reconnendations and Resolutions 4-1 4.1 Discussion 4_1 4.2 Ender of ProbTems 4_1 5.0 Review of Maintenance History Later
~
6.0 System Inspection Later
.O .
e 1 t O . 11 I Uncontrolled - - . . , -...
~ .
b$ s' ,
._~,
. ~. ._
. il 1
- WP29198/001308 i
l 1.0 EXECUTIVE
SUMMARY
~
.1 Gendral Report Descriotion The Restart System Review and Test program is outlined in Quality Control Instruction (QCI) 12, Attachment 11.,, QCI-12 lists the selected systems for which System Status Reports are required to be generated. ,
The Instrument Air System (IAS) and the Service Air System (SAS) are selected systems. . < This System Status Report documents the information on the IAS and the SAS to verify that these systems are suitable to support a return to power operations. - The combination of both IAS and SAS is also referred to as .the Plant Air Systent throughout the text of this ~ report. To expedite. work, sections of the System Status Report will be submitted to the Performance Analysis Group (PAG) for interim approval as the sections are completed or updated.
.2 System Functional Oescription ,
The Plant Air System supplies compressed air throughout the plant for pneumatic valve actuators, instruments, control systems, and general C service air requirements. The Plant Air Systent consists o'f three compressors and their associated after coolers, receivers, air dryers (IAS), filters (IAS) and associated loop and single line header distribution piping system.
.2 Review of Problems / Resolutions
.1 General Discussion:
The problems identified for the IAS/SAS as of 7/31/86 fall into four categories: Modifications, Administrative (Training, ~ Procedures, Orawings), Maintenance, and Studies. See Table l-1 for a scope / sequence chart of the problems and resolutions.
.2 Problems / Resolutions for Approval
.1 Modifications (1,3,4,5,10,11,13,18) Priority 1. ,
1 (T) The auxifiary feedwater control valves fail open upon loss. of IAS resulting in a loss of flow control. Provide component level air back-up system, designed to meet EFIC specifications. 1 -1 - - . . . _ , Uncontrolled .l
^~ ~
l.3 .2 .1 (3)- The existing nitrogen cross-tie is difficult to use and of insufficient capacity to supply plant needs. Complete the new N2 cross-tie in the Turbine Bldg. and perform a O functional test and turn over to operations.
& R0804.
ECN's.A3285 (4) The letdown . filter backflush valve actuators leak air excessively. The subject valves and actuators were replaced and are undergoing pre-op testing. ECN-R0286 (5) The Plant Air System does not have an auto-start back-up system. Install a diesel driven air compressor with auto start capabilities and hard pipe into the system. ECN-A5233. (10') Reactor building isolation valves for CCW fail close upon loss of IAS, cutting off cooling water to the RCP's, letdown, and reactor building normal coolers. Install a component level back-up air system for these valves. ECN-R0859. , (11) The main feedwater control valves fail as-is and' lock on a loss of IAS. Provide a component level back-up air system to the main and start-up control valves to maintain operability without IAS. Install to EFIC specifications. ECN-R0859. (13) Upon loss of TAS, the ADV's fail closed with accumulators supplying the air.Far closure. Install a component. level back-up air supply with an additional remote operating panel near the emergency shutdown panel. ECN-A5743 l (18) The T8V's fail closed upon loss of IAS. Install a component level back-up air system ta maintain operability of these valves. ECN-R0859.
.2 Modifications (17,17) Priority 2 (12) The instrument air trouble annunicator window in the control rocm does not have reflash capabilities. (6 devices on this window) Provide reflash capabilities for Window #7 on H2X.
(17) FV-91007 uses the SAS for pneumatic control, which can cause dhmage due to moisture. Ref 00R #347. Disconnect SAS tap and use an IAS tap for control air. ECN-A5017. O . 1-2
- Uncontrolled -- . - - -
y
.. , c. . . . 13 5 -
\
1.3 .2 .3 Modifications (14,20) Priority 3 () (14) Taps for PIT-90513 and PSL-90512 are located in a low point, dead leg of SAS. These taps and associated - instruments are subjected to water accumulation. Relocate the taps to a higher point on the SAS header and provide drains for the removal of accumulated moisture. (20) The ADV accumulator tanks do not meet ASME code ' requirements. The accumulators will be deleted with the implementation of the modif.ication in problem #13.
. .4 Administrative (6,7,.19)- Priority 1 (6) Instrument Air System drawings need to be updated.
Update IAS drawings.
~
(7) Procedures are inadequate with regards to a loss of air incident, and the new modifications. Update procedures C.23 and A.40. (19) The operators need training on a loss of air transient, revised procedures, and new modifications.
~
Implement new. training.
.5 Maintenance (9,15,22) Priority 3,2,3 Respectively (9) Perform a leak inspection walkdown of IAS. A walkdown was performed by-the Selected Projects Group and a punch Tist generated. Initiate and implement work requests to correct the deficiencies that war.e identified.
(TS) The open work requests on IAS/SAS were reviewed. 14 of the 25 open work requests should be implemented in an expedited manner. (22) Open work requests on IAS/SAS were reviewed. 11 of the 2E open work requests do not require immediate action. In:plement after restart.
.6 Studies (2,16,21,8) Priorities 1,1,1,3 Respectively (2) A system review of IAS needs to be performed. The IAS ,
has been reviewed by both the Selected Projects Group and i the DFC, and has ,been formally documented. (16) I.E. Informational Notice No. 86-51. The IE Notice to be evaluated by Nuclear Engineering with regards to existing installations and new modifications. O . 1-3 ' - t Uncontrolled , ',14
. ..c . .s: - . , _ . . - - - - - - - _ . _ . _ . . _ = - . . ._ . - - . _ _ - - , , _ - . _ . - , . - . _ -
l.3 .2 . 6 (21) Various air operated valves use rubber hoses as supply lines. Nuclear Engineering to evaluate and redesign with upgraded materials. (8) Evaluate the SAS for. flow, configuration, and system integrity. A flow test and walkdown needs to be performed. t e h O _ O i I i. O . 34 Uncontrolled -
,. ._ ,.._,. _. ,___ _ c..-_m,. ____,9 _ _ . _
,- , ,ww __v.-_g. --" -
' --' - - - -r *'"' "-~*"-----v
- -- . - - . . + 4
,,/
d P i
. INSTRUMENT AIR SYSTEM / SERVICE AIR SYSTEM SCOPE / SEQUENCE CHART l.
, }s*
. _ . ... - - . ,.. -*.pg..*
.. . r -
. .x i
.'**.0 7.O'"e.. t s__ . - - - . . _ .2[;*J*J i ,. , 3 E
' ;;T.s iiniur 4r l 4 g ,I J
.m...=.=.
a
.g g .
__.,. .. - ,lIsin..~.naT 7T.E
.a ei_ .. .p.
r,,,,,,,,, l. t 6 l
)
s ty 4- . w.
.e e 1
.a' . .. . _ .. Y . . _. -_=.
s
.o.......
ns
.J
, a
- e s .
' - M. . . ,
s . i ;&;E.r.m. T.. . . , , i- .T. . . .* 8 '
.... . t . t". . . ,
v..
. . ,L. - - - :
9 -; I s
.....s,
. -.+. . * .
[ gg guy .a=- . . pr s 9 - , e j
- a i
- aa x ~.. 8 . d.- E ..f-
< I ll".::
- n. L.:."
e
*i,*.
. [' , , , , ,, :a, ,1.::.=
.! < l .
. 1, s. --
,a .,. --
l.. .., ..,.,
. x3 ..,tA.,
u.s ... g l i 5," ".'. Y. 3 -*b ".:: lI'U3.'" LEGEND 4 t . 1
.=.ie
., g;q.. . -. masaar se i t '
.t ma -.-
a . gne - i
.... r IG.I.'N ITE' esse
. .. x . .
.. - ;.g;g . . .
I t l .
. 1
. .r. l
't l .l' l }
.. . I . . . . , r.
L.-.::
..1. m .
r '
. - ....... . .9 ,
s-
* -. _ l2 .. ..
.K.... ... ....
s
,< . . . . ,. . , t i
. t 2 t s
1 . ,
' . . a
; i
. s k
5
.I ~*
- n.u... : .s. , .
. e
.> {
- r. .. . . . . . . e b-i
(,, s :. :;;:.n= " . . . . . . . . - . . . . . . '. g
. . - - - . ... . . - - 1;":::'.".:ll" .., um --.
r.::l". " 1 i : . . . e l
..., .c . t I._ 3 e
.. ___ ___ _ .._ ___...._q . .. . _ . ..j
! e t
.-. .3 D.
I ! ""'t== . t . l "1.oI: I.. . . . . . . M. n 7
-.s.
_ .&= 6 a
' I. .
t 4 i 3 l' .
.g.... .
p7 t.
- g. ;..;. . , t q _p .
. .p .
- i. I
. {
a _ I . .. . s
.s.
.. 3 t
I i
.. 4____-
r. i.. i
".:'L 1 3P 1 ,
d ' g t .**.! . 1 Tant 11 ' . {' . . t 1-5 ( , .. ;
..2'
.' J i
'l i.%
~
- l. .. j. 6 5
,'J
. Den e.e e g
. . - .1 --
I , , n. , 3. , , i
. - _ , . . - - , - - -- _ , _ . . . _ - . -. . . , . , _ . - ._ .. . .- _ _ , - _ , _ . _ _ _ _ _ . _ _ - , . , . . - . . _ , . . . _ . _ , J
r O
. INSTRUMENT AIR SYSTEM / SERVICE AIR SYSTEM SCOPE / SEQUENCE CNART q . . . ..
3
. r . -.* . .s
.._.;_._(_, . . . <
U. 3 *
.. ._. ..- a. m .,
i
. . .'.l. ' .t. .
i 4
.i m.mw r e
g.. ni j m .m. us . . . , ,
. ,e, i
g,.g. .;., ..
.' a ....
( y ., , t '
- i-1 1 . .. .
,_ - - _ _ - _ t . .'.. . __
e.
. . . . g.s
.j e i
.~ : 6. . s .
s.ir.:a.. . s- 8
.. _ . . ... . L. 7$. - i .
,; -.- g;;g.g, 9 e ;
't :. . '
i s .
.f.e ,
e gg3 y =.=- . ..a . . e 1 . e y ,, ~'..C..,_.:.- I i
. , . i g
2*!;'? *.. . , ;* a .::&";.: e '.'.
,g'...... - . .t la.,..:p t! < ;. s. --
I . . . .,, s.__
,a . . . .
......=.
*. Tra*. ..f e
$a.",~ *O ""
Y. . W-* *. ll"a"ll."" LEGEN0 I t , ,
.,. L.....' ,. ===a=
- .- ::.g,.
t fan a.
..4.
ilGl.'l*J l'i3' esse
;.,... .s
. - . ---. . . g; , . ,
1 ; . t .
. . . ..g
. ,.r. = l s, . r I,
.~....s ta V.:.1 " -~ ~ * '
- i,
?
s 4 ' , .
,,,,,./ .
3 , , l.~ . .. T t 3 i 4 ,. 3 ._. ... < x t . N l
. . . . . . .. . _ _ . . _ _ _ _ _ _ _ . . p. ::'.::.::,;s. . , .
. _ _ _1 5 i -
w , , .
.e S. . . . . . . ,
x e ._. 1 i, .. :r: : n= = ........- _. ._-__ __. --.. . __ ; .. .:.r..~. .. l un
-; . t . "**"
. . . . :r.*;: ?
e I
.... : e l L. ..
3
.j i
. I
, . .. . . . .. . ~
... . . . . . .~4 w
.... t.
g i .... . . ,
}
( .....x
." l
. .. . . .r.
W..g .W.. ,
. t.r . i W. i 14 M.,i j e n -' l 3 .!
L
- y. . . . r
. . . . . . .....s
..... i 2 . .
se y g
.M..$.
M\
>.s..e..
t.b. g
.e. _ _ e..' .r m _m e m W
?
\ ..
M. i., I
~3 ..
. ** o.5 si n .
, e e p. 6.
I 2. e.
- g. .1 IABl[ l*I O t.5
.s i "e x J
! , . . .' r 6*
1
*1 e a
i
- n. e e
,~-~m. * * , -
; . . . ,m * , 7- . .
f '
-- .-__ .n. >
2.0 SYSTEM FUNCTIONAL DESCRIPTION '. () .1 General Description The Plant Air System is designed to supply the compressed air requirements for pneumatic controls, instrumentation and valve actuation, along with general service air needs during all phases 'of plant operation. - Three, 275 SCFM capacity, non-lubricated reciprocal compressors with after coolers supply the system with moist, oil-free air at a nominal
~
i 100 psig via individual air receivers. The operational line-up assigns one unit for continual service with a second compressor set to load and { unload with demand changes. The third unit is in auto-start stand-by mode. , The Plant Air System. separates downstream of the air receivers to form the Instrument Air System (IAS) and the Service Air System (SAS). Instrument Air System l The primary function of the IAS is to provide a continuous supply of
- oil-free dry air to act as the motive force for all pneumatic valve-actuators, instruments and control systems. Components unique to the IAS are as follows
, Dual tower desicant-type air dryers, designed to maintain a dowpoint of 1 (-)40*F at 100 psig. The me+n dryer is rated for 900 SCFM, and the stand-by dryer is rated for 337. SCFM. l Particulate air filters, with filtering capabilities to 5 microns.
- - Three 200 SCFM units are used in paralle-1 and simultaneously.
Service Air System-l The primary functions of the SAS are to provide moist, oil-free air to
- the local hose stations throughout the plant and for transferring of ion j exchanger resin beds. The SAS .is also used for breathable air.
A priority valve provides automatic isolation of the SAS upon detection 1 of low header pressure, directing all air flow to the IAS. The priority I valve actuates approximately 30 psi below the normal header pressure of I i 100 psig. l l l l . l lO . I 2-1 Uncontrolled l
. _ __ ___ _ __ J L i ", T _ _ ~ _., _ L 2 _ . _ C __ _ _ _ _ _ _ _ _ _ _ _ _ , _ _ _ . _ _ , _ _ _ _
. i 2.1 (Continued) h's-The distribution system for the IAS employs both loop and single.line header designs. The turbine plant IAS distribution uses a loop layout, where as the remaining headers are single line design. The SAS employs
, only single line runs. g
. The Plant Air System interfaces with the following systems: ,
ASC DMW HGS MSS PLS SIM
. BWS ESS HPT PCW RSS SWS CCW FWS HVS NGS RCS TCW CDS GSS MCM NRW RUS TSS OF0 HDV MCW PCW SCA WGS .
. 1 Sources
.1 SMUD Updated Safety Analysis Report Section 9.10 " Plant Compressed.
Service Gas System.' .
.2 Master Equipment List.
.3 Bechtel Rancho Seco Design Manual,. Section 2, Item 3.12, August, 1969.
. 4- Plant Drawings.
.5 Rancho Seco Process Standards, AP.160.
.E OFC Report on Instrument A'ir System. -
.7 Plant Operating Procedures, C.23 and A.40.
FUNCTION APPROVALS Date System Engineer .
~
Oate Design System Engineer
- O .
2-2 .
' ~ ' -
Uncontrolled . t
---,-.--n , , - - ,,e -e- ,,e- - , - - - - - - - - - - - - - - - - - ,,----,-----------.-+---,--.c.,--r-- -----------n-,----e--,,-- -- -, - - - - - - - -->w,-- --
4.0 REVIEW 0F RECOMMENDATIONS AND RESOLpTIONS
.1 Discussion This section of the report contains a compilation of all problems identified. The combined effect or the solutions being applied to the IAS/SAS will be considered.to determine if all known system deficiencies will be corrected. .
.2 Index of problems (Table 4-1) provides a summary of the problems associated with IAS/SAS.
9 I 4 k O - J I W e O - i 4_1 Uncontrolled I _-,--y . , - - .-,-- . _ _ - - - . - ,
Table 4-1 IAS/SAS Problem Index Problem Tracking No. No. PMoMtv Problem T 18.0037 1 Aux. Feedwater valves 22.0233 fail open. ECN R-0859. 2 19.0001 1 Perform a system review of the IAS. 3 19.0002 1 N2 cross-tie difficult to ~ 22.0234 place in service. ECN R-0804. 4- 19 0003
. 1 Letdown filter valve actuators leak excessively. ECN R-0286.
5 19.0004 1 No operational back-up for IAS/SAS. ECN A-5233.
)
l 6 19.0007A , 1 IAS drawings need updating. 22.0237 i 7 20.0068 1 Operating procedures need 22.0235 revising.
~
8 21.0054- I Perform a system review - of the SAS.
- 9 26.0108 3 Perform a leak walkdown 2 of IAS.
i 10 26.0T09 i Rx Bldg. iso. valves for CCW fail close. ECN R-0859. l 11 26.0110 1 Main Feedwater control valves 22.0280 fail as-is.and lock. 22.0281 ECN R-0859. i 12 26.0T11 2 IAS trouble annunciator needs reflash. 1 13 26.0112 1 ADVs fail close upon loss of 22.0238 ~ IAS. ECN A-5743. 21.0101
- 14 26.0113 3 Inst. taps at low point 21 .01 01 and subject to moisture accumulation. ECN A-5683. -
4-2 Uncontrolled ^^--r-o-. 3.
- c. A , , -
4
. - _ _ - , _ - . .-- . - . - - , _ . - , _ - , _ _ . , , , _ _ . . , , _ , .,---n.- _ ,,. , . . , -. , - . , - , _ ~ . - -
t (Continued) Problem Tracking No. No. Priority Problem 15 26.0114 2 Open work request review - Priority 2 16 26.0116 1 IE Notice 86-51. 17 26.0117 2 FV-91007 uses SAS for control air. ECM A-5017. I 18 22.0241 1 TBVs fail close. ECN R-0859. 19 26.0118 1 Additional training 'needed on loss of air and modifications. ) 20' 19.0006 3 ADV accumulator tanks do not meet code requirements. ECN ,A-5743, 21 2T.0101 i Rubber air supply hoses need upgrading. 1 22- 26.0115 3- Open work request review - Priority 3 j O - ) i I
. j I
O . 4-3
, , , . . l
~ . . . . _ ' ' ~
Uncontrolled ' .- . c l
- 2 H .. '. j i 'i g, :; .
1 . Problem l': Auxiliary Feedwater Control Valves fail open upon loss of IAS. O 18.0037, 22.0233
~
Tracking Number: Priority: 1 Source: NUREE 1195, DFC Final Report, Operational Assessment 82-19. l
Description:
The actuators for the AFW control valves are spring loaded to fait open on a loss of IAS. The fail open mode would be-detrimental to the stability of the plant with AFW in use after a plant trip and could cause a rapid cooldown similar to'the 12/26/85 transient. 4 l Investigation: Operational Assessment 82-19 and the DFC final report address the potential for a severe overcooling transient from ! uncontrolled aux. feedwater flow due to a loss of instrument air. i . Resolution: Install a component level back-up air supply to the AFW valves to permit actuation from the- control room with a loss of
- instrument air. This control capability will mitigate an i overcooling event upon loss of IAS during a trip. EFIC requires a quality class I, seismic class I,. two-hour rated back-up supply to the- Aux. Feedwater valves and therefore the back-up systent should be to EFIC specifications. Ref. ECN-R 0859.
i i Testing: Later. 1 1 \ 4-4 Uncontrolled T ' T ~ j .7 ,, p , ! t , l _ __
Problem 2: Perform a system review of the Instrument Air System to identify potential, unacceptable failure modes.
\
, Tracking Number: 19.0001 Priority: 1 Source: Selected Projects, DFC Final Report. Osscription: The failure of the- TAS, either by a total loss of air or a single component failure has the- potential to cause a severe transient due to loss of control capabilities of vital - components. Investigation: The OFC conunittee has evaluated the response of the plant and its . individual components upon the loss of instrument air. The report makes reconumendations in regards to both the components O controlled using instrument air and the air system as a whole.
- Resolution
- The e'va-luation for fa.ilure modes has already been performed by the Deterministic Failure Consequence Analysis committee and the Selective Project Group on- IAS and is formally addressed in their reports.
f Testing: N/A i . l O . 4-5 3, s - , ,. . Uncontrolled , . g; . ; ,
.t. . . _ . . _ .._ ., ___.- _ _ . _ _ _ . _ . , _ . _ . . _ . . . _ _ . . , _ _ _ _ _ _ , _ _ . . _ _ _ , , . _ . _ _ . - , - . _ _ . . , _ - . _ . _ _ . _ . .- _ . _ . . ______?__
Problem 3: The nitrogen back-up for the Instrument Air System is difficult and time consuming to put in service. Tracking Number: 19.0002, 22.0234 Priority: 1 Source: Selected Projects
Description:
Presently, there are three locations where NGS cross-ties with FAS . Two of these interfaces are not addressed in the plant operating procedures. The third cross-tie has not been tested. Investigation: The OFC final report, ECN R-0804, ECN A-3285, NCR 5736 and NCR 5556 address all of the NES to IAS cross-ties. Resolution: ECN A-3285 provides II new cross-tie between NGS and IAS to be located in the turbine building, north end, grade level. ECN R-0804 provides direction for the removal or two of the existing cross-ties and the capping of the associated piping. Formal testing of the cross-tie should be performed per STP-114 and procedure C.23 should be revised to include the modification. Testing: Later. O . 4-6 Uncontrolled -. .,. - , , . , . _ , 4
.._., ... ,. .-.,_... _ ,-.- -,_ _...-.__..., , .-. . , _ _ - -m ..___ ,- ,-- - .. - , . . - - - - . .
Problem 4: Letdown filter back flush valves malfunction, leak by, and are a major source of leakage of the IAS. O i Tracking Number: 19.0003 Priority: 1 3 Source: Selected Projects ' . Osscription: Letdown filter valves HV-22001, 22002, 22401, 22501, and 22201 i malfunction, leak by the seat, and exces'sively leak instrument ai r. Manual,. local operation of the valves is required die to j the faulty actuators, thus, not maintaining ALARA. i
-Investigation: N/A 4
OResol'ution: ECN R-0286 provides direct' ion for the replacement of the subject valver.and actuators. The- valves have been replaced and are-undergoing pre-operation'al testing and evaluation. i Testing: Later. j W !O I i 47 Uncontrolled -] '" { ~~>
L i. Problem 5: There is no operational back-up system to the IAS/SAS to prevent.
- a loss of air due to component failures or a loss of offsite power.
l j Tracking Number: 19.0004, 22.0233 l I Priority: 1 .
'l 1
I Source: Selected Projects, Deterministic Failure Consequences.
Description:
Presently, a loss of IAS during power operation or following a trip could result in a major transient due to the loss of valve and equipment control functions _ The lack of any auto-start back-up system requires operators ter manually start the existing diesel driven air compressor and reposition valves. This compressor also does not provide instrument quality air. , l 4 i i Investigation: The DFC constittee hes evaluated the response of the plant and l its individual components upon the loss of instrument air. The l . report makes reconmendations in regards to both the components
- controlled using instrument air and the air system as a whole.
The OFC committee recommends the installation of an auto-start air back-up system. 1 I Resolution: Install a diesel driven air compressor with the capability of
' auto-start on low IAS header pressure. The specifications for the unit are contained within ECN A-5233.
I ! Testing: Later. i l l l - !O ! 4-8 ?. a y , . , . . , . . _ . , Uncontrolled i - 3 . . .. a l L. !a .: . .L . . , , , ;
Problem 6: P ant drawings do not accurately reflect the configuration of Tracking Number: 19.0007A, 22.0237 Priority: 1 Source: Selected Projects 1
Description:
The Plant Air System drawings do not agree with the- existing configuration of the Instrument Air System in the plant. Investigation: The Selected Projects Group performed a walkdown of IAS based on P&ID M-590. Three applicable areas of concern that were developed are: Documentation-specifically junction box distribution and downstream of isolation valves, Configuration - some ECNs have never been incorporated, and Material-packing O leaks and tube fittieg corrosion. , Resolution: Nuclear Engineering is revising plant drawings to reflect i current configuration and all modifications implemented on the l IAS. NCR No. S-5736 addresses the drawing deficiencies. Testing: N/A l l w i
~
O . 4-9 Uncontrolled , 4 i
t 3 Problem 7: Plant Operating Procedures do not reflect the modifications being implemented and do not provide adequate guidance for () existing components on the IAS. Tracking Number: 20.0068, 22.0235 Priority: 1 Source: Precursor Review, Deterministic Failure Consequences.
Description:
Plant operations procedures A.40 and C.23 do not include the new modifications to the system nor is C.23 a functional procedure with regards to corrective operator actions upon loss of IAS. 1 Investigation: N/A o Resolution: Once the proposed modif.ications have been implemented, revi.se the subject procedures to reflect the changes. Revisions to C.23 should include: Guidance- on the use of the diesel driven I air compressor, use of the nitrogen gas cross-tie, direction regarding the component level IAS back-up systems and guidance for dealing with a loss of both IAS back-up systems. 4 Testing: N/A l i w O . 4-10 ' Uncontrolled
'.. . 1 . .___.___n_.______ _ _ _ . _ _ _ _ _ . - _ _ _ . _ _ _ _ _ -.. _ ____ _ __ ___ _ __ . - _ . _
Problem 8: The Service Air System needs to_be evaluated for capacity, system integrity, and configuration agreement. O Tracking Number: 21.0054 s Priority: 3 Source: Interviews
Description:
The Service Air System does not match the flow path set forth on P&ID-M-590. The SAS needs to be evaluated via system walkdown and flow tests. . Investigation: N/A
\ Resolution: Flow and capacity tests should be performed to evaluate the capability of the system.. Initiate work requests and other corrective measures to ' resolve walkdown punch list items as requi red. Revise p.lant drawings to reflect plant configuration. .
Testing: Late r.- W O . 4-11 Uncontrolled ~- ' l ' 1 ' ',
- a. -
t
Problem 9: A leak identification walkdown of the IAS should be perfonaed. ( ' Tracking Number: 26.0108 Priority: 3 Source: Selected Projects l Investigation: The- Selected Project Group for IAS performed a walkdown of instrument air for leak tightness and plant configuration drawing agreement. A punch list was developed highlighting the deficiencies and a review of the maintenance history prov.ided a list of high maintenance items. R3 solution: The Scheduling Dept'. holds a copy of the IAS punchlist and will develop work requests to repair the degraded components. The P&ID configuration agreement is addressed on tracking
#19.0007A. Mechanical Maintenance Dept, is to develop an enhanced preventitive maintenance program including a periodic surveillance for the major components of IAS. ,
Testing: N/A 4 V O - 4-12 ~ Uncontrolled i> , _ J . -- - -..'..'...4 ,
Problem 10: Reactor Building inlet and outlet isolation valves for CCW (SFV-46014 and SFV-46204) are no longer safety feature valves and fail close upon a loss of IAS. _ Tracking Number: 26.0109
~
Priority: 1, Source: OFC Final Report,. ODR #347
Description:
The Reactor Building inlet and outlet isolation valves for component cooling water fail close with a loss of IAS. T,hese ! valves no longer close upon initiation of SFAS. These valves isolate vital services such as the Reactor Coolant Pumps,. the Tetdown coolers and reactor building normal coolers. Investigation: During the loss of air occurrence on July 28, 1986, the component cooling water isolation valves began to close bringing
\ in low flow alaner to all . Reactor Coolant Pumps.
Resolution: Nuclear Engineering should develop a component level back-up are- ' supply for the subject valves. This back-up system should automatically switch in upon a loss of or low IAS header ! pressure. The back-up will allow the valves to remain in the ; open~ position, precluding a loss of CCW to the RCP's, letdown coolers and reactor building normal coolers. The subject valves should be relabled HV-46014 and HV-4620a. Ref. ECN R-0859. Testing: Later. 1
. 1 1
~
4-13 ~ Uncontrolled ,
$ 4E3 Ji ..:..
Problem 11: Main Feedwater . valves FV-20575, FV-20576, FV-20525 and FV-20526 fail as-is and lock upon loss of IAS. ( - Tracking Number: 26.0110, 22.0280, 22.0281 , Priority: 1 Source: Plant Trip Report No. 47, ECN No. A-5415 (MOD. 001), System Engineer, OFC Final Report
^
4
Description:
The subject control valves are air operated with a " fail as-is Tock" air trip circuit. This circuit locks the valve to the last position held upon a loss of instrument air. Investigation: During the loss of instrument air trip on Oct. 28, 1980, the MFW , control valves locked in place as designed, upon losing-supply air pressure. A decrease in feedwater demand was entered, but the valves retained their position. Upon reinstatement of the O air supply, the valves quickly responsed to the decreased demand signal and forced a plant trip on high pressure. In addition, the control valver will not actuate from a* main steam failure
. logic signal with a. loss of instrument air (Lock-up feature).
The upcoming emergency feedwater initiation and control (EFIC) modification- (M00. #001) requires the subject valves to have a quality class 1, seismic class 1, 2 hour back-up air / gas supply, i Resolution: In preparation for the installation of EFIC, and for the improvement in system reliability (IAS & FWS), Nuclear ] Engineering should develop an ECN for the installation of a component level air back-up system for the MFW control valves. This system should reflect the design criteria set' forth in M00. No. 001 (EFIC). The implementation of the back-up would allow the operators to maintain actuation capabilities from the. control room with a complete loss of IAS. Ref. ECN R-0859 ] Testing: Later O . 4-14 " ' Uncontrolled ,
~'.~
. 2 :.a L. h C 3 a .
l
Problem 12: Instrument air trouble annunciator (Window #7) needs reflash capabilities. O - Tracking Number: 25.0111 Priority: 2 Source: System Engineer, 00R No. 347
Description:
The annunciator associated with instrument air trouble has six inputs, including low system header pressure, high dew point, high dryer temp., and will annunciate when the back-up ai,r dryers are in use.
^
Investigation: The above mentioned 00R was generated due to a partial loss of instrument air while the back-up air dryers (Y910A & B) were in use. When Y910A & B are in use, the instrument air trouble
- annunciator is in avers. If any other input setpoints are
\ reached while the alarm is in, as happened July 29, 1986, the control room is not notified by reflash. ,
Rssolution: Nuclear Engineering. should develop and implement a change to the IA$ trouble annunciator (Window #7, H2X) to allow for reflash capabilities. ,. l Testing: Later l O . 4-15 ~ Uncontrolled - 6' -. ~ b'!? ) ; ,
f Problem 13: The Atmospheric Oump Valves ( ADV's) fail close upon loss of IAS. O'TrackingNumber: 26.0112, 21.0101, 22.0238 Priority: 1 Scurce: OFC Final Report, R.S. Action Plan, OA 82-19, System Engineer The ADV's use air open/close actuators with back-up j
Description:
accumulators. Upon a loss or decrease of instrument air pressure, the accumulator supplies air to close the valves. Control Room actuation of the valves upon a loss of IAS is inhibited. During a transient, the ADV's provide a control of the Main Steam Header pressure. At present, upon loss of IAS, the only actuation is local, manual operation of the valves or by manually connecting a nitrogen bottle "six' pack" that does not have the necessary tubing fittings. O ' The EFIC modification requ. ires the installation of a Quality
\s.etnvestigation:
Class 1, Seismic Class 1, 2 hour capable air back-up systen. j l Rasolution:' ECN A-5743 provides the direction for the installation of a component level air back-up system with a remote manual control station located at the energency shutdown panel in the west 4180V switch gear room. Once the back-up system is installed, the accumulator tanks will be removed. Testing: Later W 4-16 ~ Uncontrolled
..j. di l - . ..
= - _. _ . . - . _.
Problem 14: Taps for PIT-90513 and PSL-90512 are subject to water damage. O Tracking Number: 26.0113, 21.0101
~
Priority: 3 Source: System Engineer, Interviews ,
Description:
The present taps for PIT-90513 and PSL-90512 are located in a low, dead leg pipe wnich has a tendency to fill with water due l to condensation in the SAS. l Investigation: N/A - I 4 Resolution: ECM A-5683 provides direction for the relocation of the subject taps to a higher location on a SAS header. This ECN also O directs the addition of a low point drain to be added to the dead leg of the SAS. - Testing: Later i l l l 4 l ([) 4-17 i Uncontrolled 3. , , ,[
.
- f'?
- ~~; .
~
r
~<
; !T.: . . _,
l l . . . . . l
Problem 15: Review of open work requests on IAS/SAS - Priority 2. O Tracking Number: 26.0114 s c Priority: 2 Source: System Engineer
Description:
Fourteen (14) open work requests exist on Instrument Air and Service Air Systems that should be addressed in an expedited manner. 1 Investigation: N/A Resolution: Implement the subject work requests as soon as scheduling permits. The completion of the subject work requests will allow the system to operate in accordance with approved procedures and prevent serious deterioratio'n of the system. Testing: Later , e W O 4-18
~
Uncontrolled . . . _ . ,
, . ,; .. .n- .
$ ' b laa b ~.* { $ h ,
PROBLEM 15 OPEN WORK REQUESTS - RESTART O W.R. # Descriotion Sgs 106196 Hole in ' flapper clogged. SAS
- receiver not pressurizing ,
106661 PCV-91505 needs to be reset IAS 111205 107378 Copper lines damaged (to IAS 114225 CCW Iso. viv's) 110091 Air leak from valve in IAS distribution box 9C T12593 Replace packing rings on SAS ' after-cooler E-901 A 112594 Replace packing rings on SAS after-cooler E-901C 114640 Noise on inboard end of SAS compressor C-9009 O 115923 Dewpoint rises when chambers switch TAS 116248 Investiga'te- discharge valve SAS on C-900C 116766 Evaluate cause of air SAS compres sor. trip 116254 Problem w/ regeneration of IAS beds - Y-910C 117078 Transfer valve sticks on IAS Y-910A & B J i O 4-19
~
Uncontrolled
~ - - -
' b. .
. iv . ;; ,;
- .. .s Problem 16: IE Informational Notice No. 86-51
~
l l
~
O.kingNumber:
' ac
. 26.0116 s
Priority: 1 Source: System Eng?neer
Description:
IE Notice No. 86-51 provides information concerning potential problems due to excessive leakage in the pneumatic supply lines near the accumulators serving automatic depressurization systems (ADS) in BWR's. , Investigation: N/A l l Nuclear Engineering 40 review the subject IE Notice with regards OResolution: to the existing accumulator backed valves and to the proposed air backup system modifications. Upon completion of the de~ sign review, a formal response will be generated by the System' Engineer. - Testing: N/A
)
l I e O . 4-20 Uncontrolled ^ d! .>i2 I '.1., . . .;
~ ~ ~
~ ~
. \
Problem.17: FV-91007 uses SAS for pneumatic control. l 1 l O 1 i v fracking Number: 26.0117 Priority: 2 . Source: System Engineer, 00R #347
Description:
This valve stuck in the mid-position during its operation and caused a short duration shut off of the IAS. Ref. 00R #347 Resolution: ECN A-5017 provides direction to disconnect the existing control tap- from the SAS header and connect it to the output of the instrument air dryers. esting: Later - W 4-21 Uncontrolled a ~.- ,, 1
Problem 18: The Turbine Bypass Valves _(TBVs) fail close upon a loss of IAS. , The accumulator tanks are not to code. l O Tracking Number: 22.0241 Priority: 1 Source: OFC Final Report
Description:
Upon loss of instrument air, the TBVs use their associated accumulators to supply air to hold the valves closed. While on~ accumulator air, both control room and ICS control of the valves is inhibited. The accumulators do not meet the applicabl'e ASME code. Investigation: With the TBVs available following a trip and simultaneous loss of IAS, the added relief capacity would help to minimize the g lifting of the code.iafety valves and reduce the risk of of a (-~j 1, stuck open valve. In addi. tion, should a steam generator tube leak exist, minimiring the lift duration of the code safeties and the ADVs will reduce the radiological release to the envirsnment. Resolution: Nuclear Engineering is to develop a component level air back-up system to maintain the complete operability of the TBVs once the primary air source is lost. .The design should include a deletion of the existing accumulators. Ref. ECN R-0859 Testing: Later 4-22 Uncontrolled , h5
.- - =_
- l. .'t ,
\ Problem 19: Operator training is needed due to modifications and the revisions to the operating procedures. C Tracking Number: 26.0118 i 1 l 1 Priority: 1 l i Source: System, Engineer l
\
Investigation: N/A Resolution: The training department is to develop programs to instruct the
- operators on the new modifications bein.g installed, along with an intensive program on the actions to be taken in a loss of air occurance (Ca:ualty Procedure C.23 complete rewrite).
~
(D UTesting: N/A
~
G
)
I w e O 4-23
- Uncontrolled _
~
l
I
. r> i Problem 20: Accumulator tanks for the ADVs do not meet _the applicable ASME code.
D\
-V Tracking Number: 19.0006 s
Priority: 3 Source: Selected Projects
Description:
The accumulator tanks presently in use as fail close air supplies for the ADVs do not meet Section VIII of the ASME code. Inyestigation: N/A Resolution: The air supply for the ADVs is being modified .per ECN # A-5743. Included in the desi.gn change is the deletion of the accumulator Os tanks. See tracking #2 .0112 for the ECN modification. I Testing: N/A l l 1 l r l 4-24 . Uncontrolled
- 1. .bb !
( - i e ,
,r '
Problem 21: Local rubbar air lines to various air actuated valves need to be upgraded. O
~
Tracking Number: 21 .01 01 Priority: 1 Source:- Interviews .
Description:
Several air actuated valves have rubber hoses for air supply lines. These hoses are subjected to various environmental conditions that may lead to the degradation of the hose material. Investigation: N/A
~
solution: An evaluation of the-existing hoses is to be performed by Nuclear Engineering regarding a suitable replacement material for the air lines. . Testing: Later O 4-25 Uncontrolled .
~
O* 4 s ,f' l
!- ~ ! Problem 22: Open work requests ' review for IAS/SAS - Priority 3. _ 4 wecking Number: 26.0115 s l Priority: 3 , Source: System Engineer
Description:
Eleven (11) open work requests exist on IAS and SAS that are not restart items. - Investigation: N/A Resolution: Implement the subject work requests after restart. The below mentioned work requests do not meet the restart criteria in QCI-12. _ O . Testing: Later 9 W O 4-26 - Uncontrolled .. . j
.' Ii;_;77;,
t
- 2 2 b PROBLEM 22 OPEN WORK REQUESTS - POST RESTART W.R. # Description Sys 92196 Install air line to SAS FV-91007. .
100293 Design & Install chain SAS falls over compressors. 107066 LG-90105 Isolation valve SAS , does not hold. 106582 Change purge cycle on Y-910A IAS Press. to 30 psig. 1088022 The #1 air bank blow out SAS disc leaks. , 112726 Hose station valve SAS leaks.by. I 112754 Hose station valve leaks by. SAS 113587 Regulator not maintaining SAS () IT4452 proper pressure., Rebu.iTd compressor intake SAS E discharge- valves - to stock. - 111504 Repair pipe support & realign IAS pipe. 114144 Evaluate & stroke drain [AS valve in tank alarm. 1 4-27 - l Uncontrolled 1 v , c;
- O i j ! ! j . 43 ',
ATTAC'rlMENT 9.1-2
.tAILig SLIP U43 ,
,,,0CCssim aCCO,= rua- ECN ,p .O c/ 7 2.
v jTHl$ CDP,TO: MAIL SitCM F tLt. MS: iTW ., , . - , , ~ - - - . . M!CINA!Get
. a m .... "a e reance N. E. ;;C. i%R. _
i! ,
.. L xiti.wd; -2 64. ,_,,_
%ctear Cr.gtneering ,
ga. . q.. .- 2 tantnistrstion h,o. Ergr. C a. Danie.s 2 3 C Inspector
%e. Enor.
- 2 fontro1 done
.. ..- ... . . ";3.E8
,o, ; gr .
2 Oestan Cat.
- M . Engr. N df.
. ..cacainq C.qr. .. aetartcn j
- u. dro n. uist. . ;.4 0. ;ecoe 79 3 CC = Ct0st =r C=Cxust N. Irec=
Ts ' att ,eilo. OCM contes moon for sticis / ttee. l. 9 Petce...... . .. ..... . ..
- ; A ...
A 2. att CCM ano DCN treneesttat ansetts, :ootes ~ fNas CCN issueo for sacumentation run and sent to: ,
;remaract a sn a .
- 1. C. % i%CR. m 97 JN - 1. J. OCSIC.NAtCD ENGR. _
3tC* MAL CCN -C'.0 af 50C 1st tL au. 00C:MNIATION IS C3sPLETE arO ALL a0AK URIC 1hATOR _ C3ePLLIC QC.N inamantiiAa, pact rtAWC / SCEN C38(CICD. b e. Cngr. C - Sie. Engr. C 4. DenteIe __,,,,,,
~ 2 rats Ci e ra- ,. oor. I _
m ; - ORICumm8ef>. I- . N.n n_J ail 2." i
%s. Engt. M _
,. C. COC. CNam. LYfhAwA fdT _se. Cnge. N i
- 4. Q. OCSICNATED CNCR. fil - Mh SDC,................................. iji
,,j,h
%e. Engr. C 2 Cao, for 1. Q. Procesure uocate.......
Lo. Engr. C e. Daniete 2 p. nocage. N0penLK. . . . . . . . . . . . . . . . . . 2 Suo. Engr. t b ll r finan4G/2 1ste Roetoont. Cngr.. J. M*Lcn* * * = 2 J ' .. .. ,,,iji
%e. Cngr. se 2 5tartue. M. Perenteau. . . . . . . .
Sw. Cngt. 4 2 fretntng. F. Thaeseen ................ 2 .
- Liceneang Engr. 4. Otetecten ... 1 Nuc. Proj. Enge.. c/o C. Geooe........ 2 i
%c. Pre s. Engr. c/o C. Genee . .. 2 Design City............. ... ... .....
M. Petce. Mecn. aestat. .........
- N. Groets. ! & C **etnt. ..........
Nuc. Joerettone.Mgr. 5. Rooserer "'TT ALAitA Coora.. S. Aegers......... . .. 2 j 1 Tecn Sumeert. J. F le tc. . . . . . . . . . 7 C1use............. "TF CRrs........................ ........ 2 ! senemi. ting, s e ... o. A. Lacy......... I stort. Suo. Soestei Agent. 8. Moore..... Q A .................................. 2 Clactescal Meant.. O. Yount...... "7F Site Aostaant Cngr., J. Jurmewacn "'I5T 4LSA Coord.. M. Cravotto ............ 2 Nim. Doorettene Sust.. r. ruseer N'F NCOC................................. 2 948. 04. L. Senus ager . . . . . . . . . . . Accounting. J. Angele. . . . . . . . . . . . [ PRC S w w .ry....................
%e. Ergr. Concret. C. neckney... N Liceneing Anarvet. s. Littte.......... ,,]1 soc.............................-
Sort A tey . 'eeruells.. . . . . . . . ... . .. . M. Musean. Osetqn City........... N 3. Otaganet 00se sent to W........ 2 g ALAAA Cere. 8. Aegers........... "W g CQ Caereinocer. 8. r ueer......... 3:Os Above actton comeletoca , sr. Project Engr., p. e-ment ON Nuc. Cost Engr.. J. Staspier..... 7 SY V MCLSA Caere. . V. Arore. . . .... . . . ""N
) fretning Simuletor. J. Mou.... . "9T T retn ane. C. Sen tne ter. . . . . . . . . . "M tr stamastetonest E 59 .
"'5T fnte T . mCCM a t e .tesume
. . . . . . .r fo.
orm. . my
. . . .501 On @. / 2-Flo e, f) Qswww _
* 'PAGE 1 of 7
~~ E* -.. .
1 - - - -
. e ATTACmiENT 9.1-2
,% *y y .y . . , .
, ,g ,, - , 4,y ,
^W -me.mn
~
= wmemat .- t.m ::s me- shee: '
- s 2 ElGINw.!NG CHANGE NCTICE . ao ~ ,r w
. !D.Mrazek 2/18/86l 2
- v ei-" ~.at:?:0 n! r.:'s: '.t::.:. IE Ap=E . u n -is 0-AN02 ,
' 3. Araze iG5 .'cwear Sueciv '
- - x -.. .
j -
, \
t L. Witerue l e ! iwona mean = . :n 4
! AEASCN 2CM C-tA.G l ! -
l 108503 i w -= = -
- As ser Decemoer 26. 1o85 T snsdane Ac d-n r i s e 7 =.- ) ,
15.22. Mer isbeliin; -- . dw..~a -- .../ d .: -w. I cue:.t.,am E % :n Z na ! !
- rsnstent.
-. :25CtF"*0N OF ""*tS O fANGE
==crict A:sw :ssempaca Ana res truec :n se ant manca.nc:.:.os sxamper ano cTwen egne'mewr meenuaren c c..ma*.z _.:-
- ssc:ves ame :t stmarr e :4anca ts u sunc mm as was as :uusrnars avunnecats wrfw casema sauss=ent .=eczrt ==ar vow-
- .mperegnest Amt SecutsutL ****tt 17 Swavrwer aset: ?S ama estinsart? * *AL 1 Tv 1F s.o.te *.
L ERtSF 7:T'.L *r C;nt Relabelling 3reskers SL and S' l Z. 3ESCRIPbCN Q Jr gygggg;
~~
Ramova che existing "I", "T, "ON'" and "OFF" labels. Replace with new labels as sketched in the acesch= ant. No drawing are affected.
= _
Esci:naced Total Case is $500.00
?
- - PAGE 2 of 7 l
mm m4m kt E6 v5 bed *- 6ic/A,2ELC/3 56 \ Na f 91 .. A l v- , G3L / # er'8 / t - /J'-f6 s s. C ano===., c.-=,c s. . e
,a g v ev s . 4 gm r , o .
(* 3-
. tla M7,,F/PEfs-w,
,,[h f/ , 7 "' 3 ~'b .,
,M '
M
** " 'g : k $ Se Ue$ 9End
. , . J a f am ====
""a"--="Y Nlh =
- u. g __. 3lgja W a.<--.
3/*gg
%emmuun C rammme Emanummmmmmum CW
% dt n.~C ces _ _ ._ 994 - en _ ,
W 'M % M e lM O M M 88se Commune , . ausrirar--- - -- = mTdf4l=r!r'nmus----'mr
- _ - = - - -
. * * -ge-w me4,e e. . g , ,
N _.g_.-__..._ . . . . __. . _. .._ __ . . . . . __ w t CC O - . . _ . t l l' e ap m. _ . _ . . _ . _ . . . _._ -._.e _ . . _ .. ._ . N C . . . _ _ _-
. .. . g . _ . w . _ _ _ . . . _ ..
L&J Z W e ._ __ ~_ . . . __. g _ g .. _. . .. . . .. . . O g.__
# =
Q .
-- - ,* 'q\. NI *'
v>, v' . ._ . . . .__ . _ _ ie _ 3_ga _ _ . _ _ _ . _ lb iy v _3 x _ ;-- O N
# c- . . . . . . _ . . . _ . . _ _ _ - --
(f) p . . _ . . _ . 4 g _ _ . _ _ _ _ ..._._ t _~ _D_
~3 v3 . _ _ _ _ -
Y . _ _ .. . - . _ .Q_ s,f I _ 05 i. - Q' . - _ . _ _ s ) a_ . _ u_= V > _ ._ .. . _ . . _ _ _. . v . . . _ _ __ g f . i W W d. l . - . G G
ATTACHMENT 9.1-2 03R FOR R-0472 O . Pur;;csa of Cesign Change: The ;:ccr labelling of ICS breaker 51/SZ was a contributing factor to the severity of tha 25 Oecamcar 1985 transient. This cesign enange :::ccifia: - these labels.
!!. Design Critaria Used:
A. Summary of Change: .
. Lamaccid labels wi1T be instaTTed to provide clear indication of ,
breaker position. They will be added as illustrated in the fi. .- sketch attached. B. Design Basis:- This relabelling was based on the Control Room Design Review Criteria Report. C. Scope: .. Tnis modification is specific to breaker 51/52 in ICS cabinat #2. y
,... D. Equipment CTass and Power Requframents: -
, g-
) '. N/A 7 E. No acceptance testing ir requi d. --
III. Calculations and Design Infomation: A. Design Features: , FoTTowing accepted human factors practicas, these labels will be ' installed sa that they are readily visable by operators of all heights. The wording will be "0 PEN / TRIP" and "CLOSE" to accurately reflect the status of the breaker. The X and Y power will also be identified clearly. The misleading "0N" and. "0FF* 1abelling currently on the switch will be removed. E. Functional
Description:
The Tabels will be black letters. on a white background for greatest visability. The Tetter size will be .15 inch which allows readability up to 5. feet, which is adequate for the conditions. The front face 6:: ::er-d htt:9- -h:t[f the switch will have a white Tamaccid' attached. This is so that the switch position is easily recognizable. O' PAGE 4 of 7 ,i .
-- .- ==_ _
i
- ATTACHMENT 9.1-2
[ s,; C. Design Calculations: N/A . I't . Failura ticcas: N/A
' 't . Special Maintenanca Requirements:
N/A , VI. Special Operating Requirements: N/A VII. Verification Requirements:. N/A VIII Comments: .. N/A , , -i:
~. -)
- t l
i
~,
/
PAGE 5 of 7
-l .
n-.,.
ATfACHMENT 9.1-2 SACFAMENTO MUNICIPAL UTILITY DLTJCT
- omCE MEMORANDUM To. A. J.ocY . dam March 27,1.056 PROM
- V. C. Lewir
, suaJEC?. TRANSHI' ITAL OF TEST SPECIFICATIONS MOD NG.: N/A ECN NC.: R-047Z TITLE: ReTaceTing Sreakers 51 and SZ Supervising Engineer's signature: (
'C b.
JL Test specification is required and is attached herewittr. _ Test specificatiorr is not required for- the reason (s) stated beTow: cc: J. Shelter ~ N. Sasa Supervising Engineer-0 Design City F11es/208-0 - Engineering Files / Plaza 50 , ,, . , , VC PAGE 6 of 7 0011C 3/24/86
/ ._
., "we w - -w ! -%
. . ~ . . - . _ . - . . - - . . - - - - . . . . . . .
r j
. ArremnT 9.1-2 l
r s TEST SPECIFICATION ^ Revision 0 Date: 3/20/86 l MODIFICATION NO. N/A ECN NO (s) R-0472 . NUC ENG CCGNIZANT ENGINEER Deborah Mrazek , NUC OPS DESIGNATED ENGINEER !.scry '4f ttruo TEST C00RDINATOR A1: .:redlund PURPOSE: Ta verffy that the new lanels aid the operator in identifying wnether the-breakers are closed or open (tripped).
REFERENCES:
ECN R-047Z 3 Cr'b . 5 . L,./ PREREQUISITES: .c L I ECE R-047Z compTete and. turned.over to. Startup. Z. Ensure loss. of ICS DC power does not adversely effect the- plant. TEST METHOD:
'/erify the fo1 Towing: ,
I. '41ttr 51 and SZ in the 'ciosad* position,. an operator can determining that the breakers. are not trippM..
- 2. Mittr 51 and SI frr the tripped (open) position, an operator can determine that the breakers are not closed.
ACCEPTANCE CRITERIA: An operator can detenmine the position of 51 and SZ in the ICS cabinets. ,
~
*
- Ne ,.
t ATTACEME::T 9.1-3 EFFECTIVE DATE l l 05-29-86 Rev. 3 l WP1854P g D-0058P
.j.
C.14 Partial Loss of NNI Power 1.0 SYMPTONS j
.1 Alarm - NNI or Fan 'I' Power Failure (H2PSA). ,
.2 ATarm - NNE or Fan 'Y' Power Failure (H2PSA)'.
1
.1 Alam - NNI 'I' Power Failure (H2PSA) . l l
.4 Alarm - ICS or NNE 12(1 Volt Power Transfer (H2PSB).
.i Alarm - Vitai Power Bus ID Trouble (H2ES) . '
.E Alarm - Non-Vital Power Bus TE/lF/TJ Trouble (H2ES).
Z.0' RESPONSE ; j
.e
.T NNI 'Y' and/or NNI 'I' Pbwer Loss. .
b .T NNI 'Y' Power A87 stand-bv nower (Breaker IJ06).
.I Verify NNE 'Y2* t24 volts DC power supply picked upt Toast (Cahinet No. GF,. front).
.2 Verify NNE 'Z2' -24 volts. OC power Supply picked up load.
(Cabinet Ns. 6,, front) . l
.I Verify- that Inverter TJ is, operating at proper voltage (118 .
Volts AC). )
& Restore normal supply per A.73 Section 4.4. ,
.2 NEE 'Y power AST on- normai oower (Breaker 1001) .
.T Verify stand-by power available (Breaker IJ06). !
~
.T If not,. restors.per A.73 Section 4.4.
.2 Checle that NNE 'YT' and 'Y2' supply breakers are closed (Cabinet No. 7 front, labeled $1 and S2).
_7 PAGE L of 6 1
i j 9e ATTACBENT 9.1-3 - RESPONSE (Continued) 2.1 .2 .2 .1 If not, reclose.
.3 Check for NNI '.Y1' and 'Y2' +24 voit DC power supply blown fuses- (Cabinet No. 6, front, labeled F-2) .
.1 If blown, replace. .
.4 Check for NNI 'Zl' and 'Z2' -24 volt DC power supply blown fuses (Cabinet No. 6, back, labeled F-1, F-2, F-3, F-4].
.T If blown, replace.
' ~
.E Check NNI 'Y' power fan breaker (Cabinet No. 6, back) and fan intake filter for proper fan operation.
.T If breaker is tripped or fan does not appear to be taking a good suction open front and back doors on Cabinets No.
E,No. E and No. 7 ta provide cooling. ,
.E Check for individuaT Toad power blown fuses (Cabinets No. 5, No. E and No. 7). .
~
.T If bTown, repTace.
.Z NNI 'E' Power Loss. ..
;~. $. .
.T NNI 'X'. power AST or stand-bY Dower (Breaker TJ08). ,
.T Verify NNI 'XI' t24 voit DC power supply picked up load (Cabinet No. I, froIIt).
.I Verify that Inverter TJ is ope' rating at proper voltage (118 Volts.AC).
.I Restore normal suppiy per A.77 Section 4.5.
.Z NNI 'XI power AST on normal Dower (Sreaker 1007).
.1 Verify stand-by- power available (Breaker 1J08).
.2 Chect- that NNI 'XT' and 'X2" sunply breakers are closed (Cabinet No 2, front,. Tabeled S1 and 32).
. .T TF not, reclose.
.2 Check for NNI 'X1* and 'X2' +24 voit DC power supply blown fuses. (Cabinet No. 3, front, labeled F-2) .
~
.T If b1'own, regiace.
~~
E PAGE 2 of 6 O
/
/ - -
ATTACEMENT 9.1-3
}
RESPONSE (Continued) , 2.2 .2 .4 Check NNI 'X' power fan breaker (Cabinet No. 3, back) and fan intake filter for proper fan operation. l
.1 If breaker is tripped or fan does not appear to be taking g good suction, open front and back doors on Cabinets No.
1 ,No. 2. No. 3 and No. 4 to provide cooling.
.5 Check for individual load' power blown fuses-(Cabinets No.1, No. 2 and No. 4). :-
l
.T If' blower, replace. .
, j i
1.0 RESTORATION l
.T Restore normal supply and lineup per OP A.73 Sections 4.4 and/or 4.5. '
4.0 ENCLOSURES
.T Pressurizer LeveT Compensatiorr
.I 'K' Power Supplies
.3 'Y' and 'I Power- Supplies Oj- - ?g'.
Y s 1 i PAGE 3 of 6 O' l l .
- ITTACHMENT 9 1-3 .
l i I 6 ! l l l t I i i i i i sc:.05URE 4.1
,g j g ,, i i j7 .
-l l t t ; j i ( ; ; i i t i i i1 i il i I i e t i i i i i i i i i iiI ' PRESSURIZER !.IVEL C3PENSATION . . . .- - t i i t i t i t i l i - t
, , i i i i i i ii , , , , , , ,
i I I I I I I I ' I I I I I I' l
; g i g. I i iiii i l i l g i i i i i j i i i j is I I -l l I I I I I I I I I I I I I I I ' ' ' '
ti i i I j i l i l i i i I I I I I I I' I I I ' I I I I '
.p l L.
~ l I I i I i i T-P i i I L .I l l I y, e.. 'Jacer Te.ywacus L I I I ' I I
. 350--i l I i l l I l '
l r i
.[ll s I 670. 654 , 600.530 Saa ,440 , .30.0 .7o
; i i i . i , i pi i t i V i /i 6 I/! VAI VI I/IA E l l a i i iA '/ t IA I/i / I 1/1 1/ I A I ':
' ' ' . ~- '
' l , , j l i , i i i i
, , . - ~ i i i , i i i i i i i i i i i i i/ vi i / i e V ie i e ' e ' i c ,
i i i i i i ii iii ii if 6ti iii ii ii/I '// il I/I
, i i i i.
V '/' ! / ' / I4 I I ii
/l iA i/l A I / ' fl4I '
l l i i i i i i ei i i i I , / '/ I V l /l Ii/5 f!A I I I '
- i i i i i i i i i i i i i e /l /i 8 /: /Yi V ' /14 I I I ' ' i ,
23g i i i i i i 1. i i l i ~l i i V 7 i / VVI VI I' d i I I I I ' I ! i
- I' !
i .i l i i A /l i/l/ M I/I VI/ l I I I II I l j i i i i } l i A. ~
~
i i i .c r i i i i i i i I/ / t /, / / IA VI A I ' I l ' I i i ' ' I i i I L ' I I ' 'i
-[ .
i i , i ; ; i 6 k/l /V/IA Vf4 2- '.' . E .. - 1i I l t I i i i F/ Y l/l/VI / Vl/ l 1 I' I I I I
~. Tzoa . \. s i i 1 i s 1/\ / / A f lA 4 i i ! l !
l \
% K. =- -
t s i n t l I t /Y VTA VIA A I h
- II '
j
. //l /s/7 Vl A 4 I l I l f'- t if i l l I (
-^5
~ --
iia i i > ;
> s i s // //VI A A A I ' I I 1 \ '1 i '
( V i t i i i t i i i i _!/MHA-A A A- I I i l i I I I I ' 'l I ' ' ' ' '
"- , 44 l. I i t I i ' I I I I I ' ' ' '
2 ,. - ,iii iii: i /
/./gI /A I i l I l l I I I I I I I I I I I I 8-
- $ ~g i i i i iiii: i////
-a i i ; i i ; i / //A i i i i i i i i i i i i i i i I !: ' I d :
i i i i t i i i i/ i i i : ; , i y/A I i t i i I I I I I I I ' ' 3 ' ' ' ' '
,f M. i i 1 I i l i I I l I I I I I I I I I I I i
l
,./A //M 'iiiiiiiiiiiiI I 'I
~~
I' I I i I I i i i i i ' ' ' ' ' ' ' ' ' ' l (ICG - g i i Ii ' . N ,. 0 [ '
- Vi 7
r _e E5
.c l
I I l I _ _ _ _ 2h PAGF. 5 of 6 8 a a e , tY *
.- 9 -
g- . - - - - . - ,- -+
Q ,
'O .
i i 00,1 JO,6 4gy l ' :
-t sis v4C
- F 1 '
N, t i h i o , I i r m e . I O h h I3 I 4 h b .h t
- i El J!f MP PM, * * .
Y W lli lit h El l 11 _ til D g ' D
~
m I f I f t r o Yi Y2 38 $l' Q 124 P 1 21
~
P -Si -21 P VDC y VDC M YpC ypC y D e p - \ t
\ ,i t ,
t - ,
- - ; r 4 O
+
F2 f F o = * ~ F2 f # i
- k. ~.Ly"4 J t 9 6 R
- 6. '6.
Nd .6 $ $ $ $ R R " " " " , 9R 9R ; ;
- OR ; ; .
sz zi sz 25 t u g c w_ .
- 24 voc 2s g
2s a a a a a PM M
,g
) g ' ' '
% +24 yDC g ,
VDC \ y
.,/
i t 1r 1r 1r t i j r CA8.9 8 CAB.9 F NNI CASINETS S-T LOCAL LOADS ONLY CONTfl0L ROOM SELECTOR Y POWER (Is5 VAC & 121YDC) (NOT FUSED) SWITCIES AND %.lGHT4 Z POWER (-21 vDC)
- EffCLOSURE 4-3 i
, . 'Y' AND '7' POWER SUPPL lES 3 sy, 3 MD t'.14-6 6
ATTACHMENT 9.1-4 EFFECTIVE DATE 05-29-86 Rev. 10 WP1855P D-0058P
'. C.15 j LOSS OF NNI 'X' POWER T.0 SYMPTOMS
.T ATarm - NNI or Fan 'X' Power Failure (H2PSA). _
.2 Alarm - ICS or NNI 120 Volt Power Transfer (H2PS8). -
.3 ATana - Vital Power Bus 13 Trouble (H2ES).
.4 Alarm - Non-Vital Power Sus IE/1F/TJ Trouble (H2ES).
.5 Apparent Toss of random instruments and controis in Control Room. "
.5 Reactor / Turbine trip.
. Z.S RESPONSE -
.T Trip Reactor / Turbine. Perform Immediate Actions - E.0T in coiijunction with the remainder of this procedure.
.2 CTose Pressurizer Spray Block Valve (HV-21520) and turn off all the -
pressurizer heaters. Restore heaters when the pressurizer level is recovered at > aG inches. ,
.3 Determine if 124 VOC power supplies XT and X2 in NNE-3 cabinet have no voltage output.
.4 Detennine if switches ST and. SZ irr NNI-2 cabinet are OFF. Attempt ont, reciosure each switch.
. 5' If cTosing switches ST and 52 restores at least one set of e 24 VOC power supplies in NN1-3 cabinet, subsequent steps of this procedure are not applicable.
.6. If cTosing switches ST and SZ does NOT restore either set of 2 24 VOC power sNpplies, verify at least one set of 2 24 VOC power supplies in operation in NNI-6 cabinet.
e er PAGE l of 8 f y -
. . . . - - - - . .. . . - . , - . ._ . - . . . _ _ . . - - -. ~. . - - . .,- - . --- -.
t ArrACHKerr 9.1-4 ( RESPONSE (Continuad) l 2.6 .1 If not, go to C.17 - Complete Loss of NNI Power. N93: Two simuitaneous patns of action are required: e .
.1 Attempt to restore NNT 'X' 120.VAC and
.2 Shift to the shutdown panel instrumentation provided at the computer. .
~
PATN-NO. T ,.
.7 At vital bus voltage 10, attempt norinal,118 VAC.)one reclosure of 1007. (Assumes bus output !
. S.
At Inverter- 1.1,. attempt one reclosure of 1.108. (Assumes bus cutput voTtage normel 118 VAC.) > 1
.S It' either- breaker is closed successfu1Ty, verify NNE 'X' A8T is.
positioned to arr energized but and repeat staps 2.3, 2.4 and 2'.5. Notify Shift Supervisor of results. -
. l E ~
If either breaker cannot be closed, support is required by the I&C and ETectricaT Tech Divisions.
~ - .;- .
PATH NO. 7
.12 PTace the fo1 Towing parameters oTr the Trend Recorders: #
.T F-035 - RCI pressure (0-2500 psig) Pen No. T, base 0.0, scale 25.0.
.Z L-T10 -I.Z.
scaTe Uncompensated PZR 1evel (0-320irt.) Pen No. 2. base 0.0,
.I T-030 - Tc A loop (50-650 F) Port No. 3, base 50.0, scale 6.0.
T-006 - Tc E Toog (50-650 F) Pen No. 4, base 50.0, scale 6.0.
.5 L-T39Sr.0.
scale - QTSG-A Fu1T Range level (0-600 in.) Pen No. 5, base 0.0,
.6 L-14E 6.0.
scaTe - OTSG-8 Fuli Range level (0-600 irt.) Pen No. 6, base 0.0, .$. b:
.11 PTace the Following parameters on Group Trend at one minute time ...
intervals. (Assign Group A, Group No. 15) , i .T T-TOS Th RPS-A (520-620*F) e& e __ _ i _ . _ _ _
ATTACIIMENT 9.1-4 ' RESPONSE (Continued)
%(
O 2.11 .2 T-110 Th RPS-B (S20-620*F) 7
.3 T-248 Incore Thermocouple (0-2000*F)
.4.e.3lE265 Incore Theraccoupie (0-2000*F) '
.5 P-036 RCS Pressure (0-2!00 p::1g)
. 6~ , L-14T Make-up Tanir 1.evel (0-100 in.) ~
.7 P-810 >:.TSG-8 Steam Outlet Pressure (0-1200 psig) *
.E P-61T OTSE-A Steem Outlet Pressure (0-1200 psig)
. 9- G-010 Source Range A (10-I to 106 eps)
.1% G-011 Source Range a (10-I to 106 cos) ,
.TI G-196 Uncompensated PZR level (0-320 in)
.12 Trip feedwaterbotfr pumps.
Mairr Feedwater Pumps det verify auts start of both auxiliary
.T3 Piace bottr AFW Bailey controi units ire manual.
Monitor AFW flow at the H2PSA panel and GTSE A and R levels at Pens 5 and 6 on the Trend Recorders. Adjust flow as necessary to maintain desired 0T56. levels.
.7%
W{ t : E: 24 irt. SIL Range--- - 24 in. Fu1T Range 105 0per Range- - - 242 in. Fuli Range-955 Oper Range - - 368 irt. Full Range
.14.pressure Piace theatTBVs the Groupand A0Vs Trend in manual. Monitor OTSG A and 8 steam. outlet typewriter. i (P-811 for A P-810 for S) '
Steast OTSE's as necessary :n control RCS temperature at Pens 3 and 4 on thea Trend Recorder. (Prtferred flow to condenser)
.15 Maintairr PIR Tevel at 150 t 50' inches as indicated at Pen No. 2 on the Trend Recorders. Isolate normal make-up control by closing SFV-23604 at H2SFA or E. Control RCS make-up flow manually with SFV-23811. (Pen No.
Z is uncompensated. level. Use level conversion from Enclosure 4.1) CAUTIONr l 200* uncompensated level at 650*F PZR temperature is ; approximately 320* compensated level. .. PAGE 3 of 8 O. )
//
j.
, ATIACHMENT 9.1-4 RESPONSE (Continued) 2.16 Dispatch an operator to the West 4160 Volt room to establish communications with the control room and verify the shutdown panel
~
instrumentation against the instrumentation at the boron analyzer cabinet. These instr:ments can be used in conjunction with the computer poigui;. .
.17 Place PIR heaters supplied from Nuclear Service Bus 3A in ' Heater No.
3* position at the HlRC console. Monitor RCS pressure at Pen No.1 on the Trend Recorder. (These heaters do not have pressure interlocks, . I only TeveT cutout at 60 inches.) Reposition the heater's control . , switches to " NORM *, as necessary to . control PZR temperature. Close the-PZR spray block valve HV-21510; as necessary to control spray flow.
.18 Stop all 4 RCPs if adequate subcooling margin is lost and perform the l following procedures in conjunction with this procedure. j
.T 8.4', Section E.0,. Natural Convectiorr Cooldown ,
.19- Control RCS letdown flow manually by:
.T CTose Letdower Isolation Stop - SFV-22009
.2 Opeer Letdower Orfice Stop - HV-22010
.3 As necessary, Open/CTose - SFV-22009
"~
.2G EstabTish the folicwing;' valve Tineup to aid in preventing the Makeup (D Tank going solid: .~ -
~. '
.T Opert SFV-25003 ( te HPI-A)
.Z CTose SFV-2350E (Makeun Tank Outlet)
.I CTose SFV-23646 (HPI Recire Stop) . Verify a flow path to- the RCS for running. HPUMU pumps.
.* Close SFV-240TI (Seal Return Stop)
.5 Position HV-23004. for letdown flow to the- flash tank.
RCP seeT supply- has ed to about 5%, i.e., very high seal FTow. Letdown flow will not indicate but can be l
. estabTished This flow can be verified F:y observing !
Flash Tank Level and pump discha ge flow when letdown PTou is. established. PAGE 4 0F 8 0 . 1
~
J
ATTACHMENT 9.1-4 RESPONSE (Continued) 2.21 Control GTSG 1evel/ pressure and RCS temperature / pressure uttitzing the indication on the Trend Recorders.
!!9.IE' g The following instrumentation is operating normally.
.1 Pressurizer Temperature - Select No. 2 temeerature transmitter for console readout and control.
.2 Makeup filter AP. -
.3 Mekeup header pressure. -
. 4- Makeup tank pressure.
2.0 RESTORATION-
.T When NME 'I' power has been restored, verify the t24 VOC power supplier irr NNI-I caninet are energized.
.2 Wherr power is restored from 1007 transfer the 'I' power A8T from standby tat normai by depressing the reset pushbutton.
.1 Verify console and vertical panel instrumentation agrees with Trend Recorder data. [-;_ .
.,:~
. p >
%) . 4- Restore the Makeup Tsak.tr service by:
.m
.T Verify Makeup Tank TeveT. Eansmitters (2) indicate on scale.
Adjust TeveT as necessary.
.Z Operr SFV-23508 (Makeup Tank Outlet).
.2 Open SFV-23646- (HPI Recire Stop).
.4 Operr SFV-24013 (Seal Return Stop).
.i Position HV-23004 for letdown to the Makeup Tank or Flash Tanic as necessary.
. E.
, ., Position SFV-25003 (SWST to HPf-A).
.i PTace the plant irt cold shutdown condition in accordance with 8.4 - l Plaat Shutdown /Cooldown procedure. ..
!!GID If RCPs were stopped during this event do not restart or jog without Plant Management concurrence.
3 -
/ PAGE' 5- of 8 O . .
e =
- m_
ATTACBMENT 9.1-4
- 4.0 ENCLOSURES o
.s
.1 Pressurizer Level Compensation l
.2 'X' Power Supplies ,
i l 4 e I i ( l i 1 l o i i, .. r : h. .
. ~
4
~ ,
4 I ) I
.~ '
~
g- PAGE 6 of 8 l l 9 9
/ . . - . _
--*w++M w
- . - ,-y ., _. __ p..-_ y - - , . _ . _. +--m---, m .g. - - -+- , , w,y., , ,. vyg ,, _m, y --
~ ~
j
~~-
~~L'iACEMENIEl-e :
i ; ; g g ;f'; --
; ---( -
_ 4 ., ,, , _ , , _ . _ l, ENCLOSURE 4.1 6 Il j j , , j PRESSURIZER LEVEL CCMPENSATION ,, , l P' I i i l i I_ I_ I i . I I i li l l l l i 1 I I I I i i e i . ! t I i i l i i i i i ' I I i i l l l l g i I I l i i l I l ! I i i l l I i l 1 1 I i i i l l I i i l l } l1
~
I l .i I L t=J l ! I I I I i l l i l l- 'i- I I i i i i i i i l i
- ' - - - - - -
- i -
I I I I I I ! I i l i I i i 1
~ Pressurizar Wacar Tamperature 350 ' l l l l l l l l l l l l l
, ! i ...
I i i i i l l I I i i i l
; ' I I I I I I I I I I I I i 1 I . , 65a. 600 550 50a ,4co , ,300 ,70 I II I I i ! I i I_ l1 i l i i i l i /t i r/ /AI VI /;A ! ,
I I l i I I I I I I I i i i i i i I '/ i : /t 3 /i /i i/i if if I i. 300 , _l l I I i l i i i i i l i i I l :/t : /,/f if I f . j l l j . i _ _ l i i l I l i l I I f I I I I I i '/ I 1/i / r/i f : / if I i i I l l i I i 1 I I I I I i l i l I f I /l I/ ; / i /- ;/i/ifI l l i i l l i I I I I I I i i i i i I i '/ I VI/ / i / /!/ I .I l l l i I l i I I i l i l i i l I i l i/l I /: / /I '/ /if I i i i i i l 250 , I i l i i i i i i i i i l l- ! y i / j':/! +/ ; yigijil l l j ; ; i i i i i i ! I I I I I i i ! /i I/ I /. A I/i fl/ I l l l l l l- I } I i ! l I i l I I i l~ l / t /l / / I A !/ I A i i i I i i l1 ! l I I I I I iI I I l -1/1 / y y : / ifl/ I ! i i i , i F i
$ =
l l l i I l I l i ! i / I/i/i/l / 1/l / l l l ! I I , I l
; !! 2on I i ! i l l .i i i l a /i / /f y :fif a j i ,
i 1 l l I i i l i i 1 14 t/ // V l/ / l ! I i l 1
/> _
. at .
I I I I I I i i l i i t /i /i// i/l A A I I i a i i l i l l t i I I i i i l l I ! i : i / ///T/t// I I I I i i i i i i l I i l l .I l' i l I i l I
- l E .
- 1 I / ///l/// l l l 1 I i l 1 l l l l l i i i l I l 1 ! i ! /// I I I I I i l i i i i i i i ! i i i
$ 15a _ ' ,
I ! ! I - ! i
/// I i l l I I I I i ! l l l i I i i l I
[ l f i ! : i !
//A I i l l- ! I I I I I I I I i i l i i ! !
6 i I ! ! ! I r /A i l i I i i ! I I I I I I i i i i i i i E i l i i ' ' ' -
. // I ~l i I I i l 1 i l l I I I I I i i t i I l i i i i -
i /A I I I l l t i i I I I I I i i i i i i I l i i 3 10G _ ' E _ I I i /A l 1 I I l 1 I I I I I l l l l l i i I l l l i I = i i i ! / I I I I I Ii! I I I i i l l ! I i l 1 ) l l 1 O .' ! : : ;
/ 'l I ! ) I I I l 1 I I I i lI i i i i I
! i I ! I H } l l i l I I l '
I I I l l l l _ __ 50 .. , i . I i i li I i l I i i i i .i l l l l i Il i I i ! '
! I i ! I 8 /I I I I I i i i ! I I i i i iiii 1 i li i l i i i
_; /i ! I I I I I -l i I I I i l l i i l I i i i l I i l i I I i
' . _/ l i I I I i l I l i I I I I I I I I l.1 ! l I I I i l i 6 e i i 1 i : - i i . .
,, ,. /'
8
- 1 I i ! I i i = l i i i i l , l 200
^
O , { 50 j f ' 1002dicatart !' ' 150 ; 4 200 - 250 ;, . Uncrapensated Level (inches) ' *I
-y, ,
' , ' ' + r . - i e i
. i . . . s . . . : i i . . . i . . . . . . ~
327 297 247 19 7 147 .97 47 70.o I i t i PAGE 7 0F 8 Computer Readout (inches ap) I il i- ( l l j
,j (Points L-008, L-009, L_010) g ;
, , _ , , i i,! ,
_ _ _ _ _ -- . , . e 6 6
--,,,s ,-- - w - - -
yp,--w y ,.mmvw wwq-pas,m -
$ ATIACHMENT 9.1-4 sk JL E hI N T
O?. g g O
- MOVW Z e 13NISY3 -
a bY b Y j QE e M3YW Z e 13NISY3 g a
> 5 E'3
?
E' 9 _7 ..
* ~
o . M3vu z .13NiGY3 ' " P ? [ Ef sf > !l o g g oE e M3VM i e 13NISY3 $ m [9 i [ k
, . - .x O e M3YM i
- 13NISY3 j 7
- 9 95 5
t w y A a a a
=5 gT ,Amg-T e_
P S ".I,l !
" j. m . m ;> =s-m i
l 3
== 4E E o
~g o
s f-.
-5
!o l 4 = -
- 3E l e.
R '
- N o _w . ..
as _ m, E
. Y .
r/
~
V r =j 23 ~ _g g-
. <s - -
,t 35 I
a.h O .
?
( -. w_- - . . -
l ATTACHMENT 9.1-5 ) EFFECTIVE DATE 05-29-86 /7 Rev. 10 V WP1860P 0-0058P C.16 : g LOSS OF NNI 'Y' POWER i T.0 SYMPTOMS . ,
.T Alarm - NNE or Fart 'Y' Power Failure (H2PSA). . 1
.?
.2 Alarm NNI 'I' Power Failure (H2PSA).
-.3 Alarm.- ICS or NNI 120 Volt Power Transfor (H2FSB).
.4 Alarm - Vital Power Bus 10 Trouble- (H2ES). .
.i Alarre - Non-Vital Power Sus lE/lF/TJ Trouble (H2ES).
.5 Apparent Toss of randost instruments. and controis irr Control Roonr.
.T Reactor / Turbine Trip. ,
+
2.E RESPONSE -I q ..' q~ .T Trip Reactor / Turbine. Perform Immediate Actions - E.01 - in conjunction witfr the remainder of this procedure. ,
. 2' CTose pressurizer spray triock valve (HV-21510) and turn off alt the pressurizer heaters. Restore heaters when the pressurizer level is-recovered; at greater than 40 inches.
.I Deteristne if the YT and Y2 224 VOC and IT and- Z2 -24 VOC power suppliet irr NNI-6 cabinet have no voltage output.
.4 Determine if switches. ST and. 52 irr NNI-7 cabinet are 0FF. Attempt orLt reciosure on eacit switch.
.5 Check IT and ZZ power fuses F-1, F-2 F-1 and F (Cabinet No. 6).
Replace if tLiown.
.6 If cTosing switches S1 and 52 restores at least one set of !24 VOC power supplies irr NNI-6 cabinet, subsequent steps of this procedure are not applicable.
.7. If closing switches. 51 and S2 does NOT restore either set of t24 VOC power supplies, verify at least one set of $24 VOC power supplies irt operation in NNI-3 cabinet.
A PAGE 1 of 8 O' , l
/ - -
i' I ATTACIEENT 9.1-5 1 l RESPONSE (Continued) If not, go to Casualty Procedure C.17 - Complete Loss of NNI Power. 2.7 .1 g: 1%o simultaneous paths of action are required: J 1) Attempt to restore NNI 'Y' 120 VAC and .
- 2) Shift to the shutdown panel instrumentation provided at the computer.
PATH No. T ,
.8 At Vital Bus 10, attempt one reciosure of 1001. (Assumes bus output .
voltage normal) 2 . -
.9 At Inverter lJ. attempt one reclosure of 1J06. (Assumes bus output voltage nomal) j
.10- If either breaker it closed successfully, verify NNI-Y A8T is positioned to an energized bus and repeat steps. 2.3,. Z.4 and,2.5. Notify Shift Supervisor of results.
M' If gjilbg,r breaker cannot be closed, support- is. required-by the I&C and Electricial Tech Divisions. , j PATM Mn. 7
.TT Place the following paramIters on the Trend Recorders
.T P-03E RCS' pressure (0-2500 psig) Pen No. T base 0.0 scale 25.0.
. 2' L-Tit Uncompensatet PZR level (0-320 it.) Pen No. 2, base 0.0, scale 3.2.
.I T-030- Tc A, Toop: (50-650*F) Pen No. 3, base 50.0, scale 6.0.
.* T-006 Tc S. loop (50-650*F) Pen No. 4, base 50.0, scale 6.0.
.5 L-T39- OTSG-A, Full Range level (0-600 irt.) Pen No. 5 base 0.0, scale 6.0.
.5 L-140' QTSG-a Full Range level (0-600 irt.) Pen No. 6, base 0.0 scale 6.7.
.TZ PTace the fo1 Towing parameters on Group Trend at one minute time intervals. (Assign Group A. Group No.15)
.i T-TOS Th ReS-A (520-620*F) ,
.Z T-110 Th RPS,8 (520-620*F)
-. PAGE 2 of 8~
Cr i
,i
./ -
- f. . -
4
ATTACHMENT 9.1-5 RESPONSE (Continued) 2.12 .3- T-248 Incore Thermocouple (0-2000'F).
.4 T-265 Incore The'nnocobple (0-2000*F).
.5 .,4 % 436 RCS Pressure (0-2500 psig).
.6 L-141 Makeup Tank I.evel (0-100 in.)
~
.7 P-816 0T56-8 Steam Outlet Pressure (0-1200 psig). -
.9 P-811 OT5G-A Steest Outlet Pressure (0-1200 psig). j'
. 9- G-010 Source Range A- (10-I to 100 cas).
.10 G-Oli Source Range 8 (10-T to 106 cys),
.IT G-195 Uncompensated PZR 1evel (0-320 in.). ,
.T3 Trip. botfr Main Feedwater pumps. and verify auto start of both Auxiliary Feedwater Pumps.
.T4 Piace botfr AFW Sailey Control Units in Manuai. Monitor AFW flow at the-H2PSA panel and GT5E A and 8 levels at Pens i and 6 on the Trend .
Recorders. . Adjust fTow as necessary to maintain desired 0T56 levels. g: 7'- h: 24 in SIL Range = 24; in. Fu11 Range ' '.
- s. 505 Oper Range.= - 242 in. Full Range 955 Oper Range -- 36E in. Fuli Range *
.TE Piace the T8Vr and A0Vs in manual.- Monitor 0T56 A and 8 steam outlet pressure at the Group Trend typewriter. SteaarOT5Gs as.necessary to control RCS temperature at Pens. 3 and 4. on the Trend. Recorder.
. (Preferred flow. ta condenser)
.1E Maintain PZR 1evel at 150 t 50 inches as. indicated at Pen No. Z on the Trend Recorders. Isolate normal makeup control by closing SFV-23604' at H2PSA. or 8~ Control RCS makeup flow manually with SFV-23811. (Pen No.
Z is uncompensated level. Use Tevel conversion from Enclosure 4.1.) CAUTTOM 20G* uncompensated level at 650*F PZR temperature is l approx. 320* compensated level. I
.TT Qispatcht an operator to the West 4160 Volt Room to estab11str ,
communications with the control room and verify the shutdown panel i instrumentation against the instrumentation at -the baron analyzer i cabinet. These instruments can be used in conjunction with the computer points. , 1 PAGE 3 of 8 i 7 ,
/
l
l ATTACHMENT 9.1-5 RESPONSE (Continued) 2.18 Place PZR heaters supplied from Nuclear Service Bus 38 in " Heater No. 3* position at the H1RC console. Monitor RCS pressure at Pen No.1 on the
- Trend Recorder. (These heaters do not have pressure interlocks only
- level cutout at 60 inches.) Reposition the heater's csntrol switches to
'NGSE S.as necessary, to control PZR temperature. Close the PZR spray block valve HV-21510, at necessary to control spray flow.
.19- Stop all 4 RCPs if adequate subcool'ing margin is lost and perform the following procedures in conjunction with this procedure. ..
. .T 3.4,. Sectiot 6.0,. Natural Convectior Cooldown- ,.
.2G Control RCS Tetdown flow manually by: .
.T CTose Letdown Isolation Stop - SFV-22009
.I Oper Letdown Oriffce Stop - HV-22010
.2 As; necessary, Open/Ciose - SFV-22009'
.ZT ControT OTSE Tevel/ pressure and RCS temperature / pressure utilizing- the-indication- on: the Trend- Recorders .
M: The following instrumentation is operating normally: T) RCP pump hearing tamperatures. 2)- RCP Seat Cavity pressure. ,
- 3) RCI' Semi In3ection FTow (Total and Individual) 4). Letdows FTow Temperature.
- 5) Letdown FTow Rate.
- 6) RCS Makeup Flow Rate.
7.0 RESTORATION-
.T Whom NE 'Y' power l1as. been restored, verify the 224 VOC power supplies in NNT-6r ubinet are energized.
.2" When power it restored from 100T, transfer the 'Y' power A8T from standby to nonaal by depressing the reset pushbutton.
.r
- PAGE 4 of 8 O .
l l t . ..- .. w-
.. _ .. . . . . . l ATTACEMENT 9.1-5 RESTORATION (Continued) 3.3 Verify console and vertical panel instrumentation agrees with Trend Recorder data. l 1
.4 Place the plant in a cold shutdown condition in accordance with 8.4, Plagj3Dutdown/Cooldown Procedure.
If RCPs were stopped durtng this event, do not restart EID i or jog without Plant Management concurrence.
- I
~
. 4.0 ENCLOSURES ; l
.1 Pressurizer Level Compensation
.2 'X' Power Supply
.I 'Y' and C Fower Supplies ,
A W PAGE 3 of 8
/ -__. .
~ ...
._ ,, ,< _ - _ . .- .- .-.,--+
, - , - - - - - - , _ , . , - - _ - , - , , ,,.--w.-- ,,, _ -- ---_ --_, ____,_,. _ ._,-,,_,,,-,
' i a
ATMCEENT 9.1-5 -
l', 6 I
; ll,l l
gd I i iii r eia.asuat 4.1 1
' l' I ' l I i i l i I I i ' I I l~ l PRESSURIZER LEVE!. COMPE.ISATICM
, , , i . . ' -
', , , , c h iI ii t i i 4 g" I I i i Lt i i i i iiI '
I I I ( I ) I II i ' i .I i , ; , , r 'l l l II I l i I i l l i i i ii i
- I l i i i ; l I i Isi 1
=
; i m i . l ~ " ' * * "
asow .u i ' i ; ( I a7p. asa , 600.55o 500. ,4ca , ,soo ,70 l r i i I , ,# l
/ l /t i 1/ ' V. A I VI l/
I 'l i b 1/ '/ I J/ i/l / I l/l i/ 1/ i ! ,
. . l I
I l I
,) ; I t/:fi ; / g ./ . l j ggij;g i, ,
I i 1 l i 100 ; __l i fI i i i ) i '/ I l/l V t/i ifI/Igjiii
' l l I i I I i
_l,_ _ l I l l/ /l I /.' t/) A i / i / if I l l g i i i i l I- i i i l i I 'I
,,,j,, _,_ _
l i I I i i i l I l i i i i 1 '//iI i'//:i /A/I/ '/I /Ii /7'I /! I/ tl ;i iI ;i it ii 250-t i iii ii I i i i i l i i i l I l / i 1. I I I i 1 i i t/ / i / rf :/! r/i y; g l l t l l 9 g .I ; p. # g-i i l i i /l /t 1/1/, /1 i/l Vif I ) i i
.j_ ,,
I ii i 4 ) l I I t t/ / t A / / I A Vl/ I l i ; i ; ; ; i 1 l-i l- I l' I i
. . .r_
I ' h/l / / /14 VI A ' I i i i t.l i l I
._.,,-g -
' l
/ / I/l/VI / I/l/ _a y
i t
.. e- .
l I f/ ; A /h 11/ / , pa
' E 200' L
i I I /Y V f/ VlA / i~ Js/1 / / A
~$
//
O' L~L. 2.. i
' // /// \A // l t 1 ; I l j iTT y .I l I ' i I ' ,
1 I//t / / / I A A / - I i
; ) jij i i ! l ! l i / .AA . I t. I h I ( l i t l l I i il i g 15G.
f I l l ) I I i ! i[ ' 2A l 9 i i i i i i i l i i i
- 1. I 1( , e: ii
//A I I I I I I i i i i I ll i ! l /
E sa I I i i i t. I I i , y/A i i t ; i ( ) l l t i ; j a g g , g , ,;
,Aiiil
/ i i i l i i l I l l i i i t ; i g ,
E-
,I I i ! f I l't'//4 I I1 1 I I I L i I l l t i I l 1 i ; ; ; ;;
! i i I 8 I I i
. , _ h 100-E i i i i i ! ! ' /A I I I I i l I I i l II_ti ii ii ii iii ii ii it ;{ ii ;i )i i ;
t i i i i i i _y Al Il .:I II iI lili iiI i i i i i i i i i i i l l l ; ; } i
- O ' t ! I i !
I i I i l i l' I i i i l i iiiil l l l itg tg
.j, " l i l i ! !: I J l I ; i i h a !. I I i ;
i i I ,// gg ii ' .,,_ 50' _
- t, /V
!I i l I
I j i
; l' -
.j _j._ /// l- 9 I i t , ) ;i
,_! t *
//l/ I I
I I I i i i iii! ; i ii
/4ii1 i i
' l i ; ,
! i : i
!.I i .!
i ! - a, fi/! 5 6 t t ! I I i ! l I ! l ! 1 1 1 # 4 : : i ' 300 ; i 0 50 - [100 l i ,! l 150 l { 8 l200k[{'130j l I I f' , l
-! i . I,,".
- ; !i I,nd,icate.d .thcom,pensa,ced Level,(inches) i . i g i
.e ., ! * , , . . I i 6i ,
6 i i i i i247i i ' A a19 7i i i i i i147i 6 i i e 4.-
- .6 i 97 47 ,
I 197 J 7 "' 7 .~ 327 computer Raadouc (inchas 49) f g g ; 1 I~l , g e ( (?oints L-008. 7.-009, t, 010) , 7 l l t { j i t { j ,
' 8 '
- i' '
l I i l' I I PAGE 6 of 8 I) )l 1l l ! ,!._ , l
/ *
.- ,.,__-_ _.__ _ .-_..___,,-9_ . _ _ - - _ , _ _ , _ - _ _ _ _ , _ __. .,, .. _ , _ , , , , , _ . . _ _ _ _ , _ _ _ _ , _ _ _
cn} M ATTACEMETT 9.1-5 b - I a a O
- M3Yu E
- 13NIEV3,.
j g EO Y EY j OE * )l3VW Ze J.3MSY3 g _ e . g 0
- MOVE E
- 13NISV3 $ u ?
Y NN 5 g.' e- E E,'
? -
/ i o
s . g j OE
- MOVE I
- 13NISYS 'g jg g II
- M3Vit I* CaNISV3 j
Q
- MOVE
- 13NIST3 j 1
- 1 I
~
g, 3 e <> E g 2 -
< 4.
_o
= E a a .
Es - e w].
- fA _
[- IT e; 3[ l . N
~k
_I
- A '"
u . l E a I E>, @, E 8
> ew 3
k l $ % A k w {> w. 8-E t/ m _ _- j g: T,w._:= ***
' ' ~
1 l N , , 3 :
* ^ ' '
( zt. I 3& t a PAGE 7 of 8 .
+. .. . , . - - - - - , , .%,_--.m.- -,.7-9 .---m ,.y. --..w,--.-p. - - - - . ,,,,,.,..__.e_%-_,w --,,%- _ , . , .~
r a----="+'-""-"-==Wm ='- 'w'ere-- ^+m-'-T-----
l ATTACIDU2TI 9.1-5 , h .s 02
- Mvu 9 e 13NISV3 o
e a , e
%g n
.oa . x3vu s. 13Niev3 E E >g <E5
~
= ,
u =g - I I.
- 4.
- MQve S
- 13NIEV3
*s~3*
s o 1
'N b I )
o
- cvu 9.* 13N48V3 V S'
- g s -
g ^- Q E 1 !i ,, E d
.~
eE u --- 4_dti l~E w hE 1 = ta#g e i . W ,"%'8 :
. tA __
g l$
- I"
' E [l I
= &. EP, -s
- g. .s.
" - 4 a
< p-
, L,
= -
w -,_
*- ,4 n1 1E :c =_
i ~--- : l l r- ?I =8- ! _e
=9 4'N a E-- g g tg g
i s > >
Ub L__ ,
_ =g Page 8 of 8 ,
/
l
. . . - . - ~ . , . . _ , _
l
1
. l ATTACHMENT 9.1-6 EFFECTIVE DATE 01-23-86 Rev. f .
WP1861P r, 0-0058P { C.17 COMPLETE LOSS OF NNI POWER T.0 SYMPTOMS
.i ATars - NNI or Fan 'X' Power Failure (H2PSA).
g*
.2 Alarnt - NNI or Fan 'Y' Power Failure (H2PSA). '
i
.3 Alarm - NNT 'I' Power Failure (H2PSA) .
.4 Alarm - ICS or NNE 120. Volt Power Transfer (H2PSB) .
.5 Alars - Vital Power Bus la trouh'le (H2ES). "
i
.& ATarnr. - Norr Vital Power Bus 1E/1F/1J Trouble (H2ES).
d
.7 Apparent loss of randos, instruments and controls in the Control Room. ,
.8 Reactor / Turbine Trip.
t x . E:
., The totai Toss of NNI power will result in the majority of the Control' Rocar. Instrumentation becoming inoperable, thereby rendering those controls that receive their signals from the NME inoperable in the automatic mode.
Z.3 RESPONSE i- - .1 Trig Reactor / Turbine. Perfors Immediate Actions - E.01 in conjunction wittr the remainder of this procedure.
.I Turrr off all the pressurizer heaters. Restore when pressurizer level is.
i recovered at greater thart 40 inches and NNT 'X' or 'Y' power is energized.
.3 Trip both Main FWPs and verify aute start of botfr Aux FWPs.
.4 Take manual control of and close the T8Vs and A0Vs.
.5 Close the PZR spray block valve HV-21510.
! .5 If adequate subcooling margin does not exist or there is inadequate-primary to secondary h6at transfer (Enclosures 4.4 and 4.5), initiate HPI cooling, SFAS channels 1A and 18. 1
? AGE 1 of 9 O' ,
r-ggum - - -w g+ _-.-.-+wy-- -+ - , - - --w------y w--wvv =-wr ---==e-- 7'yia--m---- - -
- - - - - - - " * - - ye - --
e -- s-w-=ya ----e------se eww--a e rear +7e -e.r---+-f*+ --e-++-
I ATTACEMENT 9.1-6 RESPONSE (Cont.) ( k 2.6 .1 Control GTSG level (L-139 for A, L-140 for 8) by throttling SFV-20577 and/or SFV-20578.
.7 Place AFW controls at HlRC in~ manual and close. Check valve positions at HISS. Gag closed AFW valves FV-20527 and FV-20528 (must be done at the valve). .
.8 Place the following parameters on the Computer Trend Recorders.
.1 P-035 RCS pressure (0-2500 psig) Pen No.1, 3ase 0.0, scale :.
25.0. I
~
.Z L-110 Uncompensated PZR 1evel (0-320 in.). Pen No. 2 base 0.0 scale 3.2.
.1 T-030 Te A. Toop (50-650*F) Pen No. 3, base 50.0, scale 6.0.
.4 T-006 Tc 3. Toop (50-650*F) Pen No. 4 base 50.0, scale 6.0.
.5 L-T39 OTSE-A Feli Range Level (0-600 in.) Pen No. 5 base 0.0,.
scaTe 5.0.
.& L-T4G QTSG-8' Fu1T Range Level (0-60G in.) Pest No. 6, base 0.0, '
scale 6.0.
.S Place the following parameteN on Group Trend at one minute time
,% intervals. a
']
D ; (V) .1 T-1CE T1r RPS-A (520.-620*F)
.Z T-110' T1t RPS-E (520-620*F)
.1 T-248' fncore thermocouple (0-2000*F)
.& T-265 Incore thermocouple (0-2000*F)
.5 P-036- RCS pressure (0-2500 psig)
.E L-TAT Makeug Tank level (0-100 in.)
.T P 810'
- OTSG-8' steam outlet pressure (0-1200 psig)
.ar P'-8T T OTSG-A steant outlet pressure (0-1200 psig)
.7 Gr-010 Source Range A (10-T to 106 cos)
.10 G-Oli- Tource Range 3 (10-1 to 106 eps)
I l 2 ' PEE 2 of 9 V l l l l l . 1 -_ _ ._~ . _ . _ . . _ . .. ..
ATIACHMENT 9.1-6 RESPONSE (Cont.) 2.10 Monitor RCS pressure at Pen No. l'on the Trend Recorder. Perform the fo1 Towing as necessary.
.1 Close EMOV block valve HV-21505, if RCS pressure decreases to 1800 psig. .,
j .2 Stop all 4 RCPs if adequate subcooling margin is lost. Perform OP ~ 8.4. Section 6.0, Natural Circulation Cooldown in conjunction with the remainder of this procedure.
.3 With RCPs stopped, slowly increase OTSG A and 8 level to about 242*
) at Pen 5 and 6 on the Trend Recorder (SFV-20577 and SFV-20578). ;,-
- !!Q.E' 1 24 in SU Range = ~ 24 in. Full Range j _ SOS Oper Range- = - 242 in. Full Range J 951 Oper Range = - 368 it. Full Range
.TT Qispatctr an operator to the West 4160 Volt room to establish l communciations with the control room and. verify the shutdown panel i instrumentation against the instrumentation at the baron analyzer
- cabinet. These instruments can be used irt conjunction with the computer l points. ,
1
.TZ Monitor OTSE A and 8 leveis at Pett i and 6 on the Trend Recorder.
ManuaTTy adjust SFV-20577 and SFV-20578 as necessary to control AFW m fTow.
- i .13 Adjust HPL FTow. to the RCS as necessary to ensure HPI pumps are not operated irr 'Yellom Band"* of motor amps. (Reduce probability of pump' runout.)
.14 Monitor GTSG A and 8 steam outlet pressure at Group Trend typewriter.
Steas OTSGs. as necessary, to control RCS temperature indicated at Pens I and. & on the Trend. Recorder. (Preferred steam flow to condenser.) Adjust AFW flow to maintain OTSE levels (SFV-20577 and SFV-20578). )
.Ti Monitor RCS subcoolint using incore thermocouples. at the Group Trend Recorder. Use the Pressure / Temperature curve at HlRC. , Adjust GTSE steaming rate and HPI FTow,. as. necessary ta ensure
! subcooling of >50*F.
!!GE-PZR heaters cannot be energized on a loss of NNI X and Y.
i Continued operation of the HPI could lead to solid plant operation. (Reference OP 8.4, Section 7.0) l FAGE 3 of 9-
/_ ..
- - _ . . - _ - - - - . . - _ _ _ - - . . - _ _ _ _ ~ . _ _ - . - _ . . - . - . - . . ._ - _._ - , .
ATTACHMDrf 9.1-6 RESPONSE (Cont.) 2.16 Continue plant cooldown in accordance with applicable sections of OP 8.4 O. . Plant Shutdown /Cooldown. I 3.0 RESTORATION
.1 Attempt to restore X and Y power supplies in act:ordance with applicable i sections of C.15, Loss of NNI 'X' Power and C.16. Loss of NNI 'Y' Power. ;
i
.NQHi* .
If 'X' gr 'Y' power is restored, continue plant cooldown as modified by applicable sections of C.15 -and C.16. -- .
.2 Place the plant in a cold shutdown condition in -accordance-with OP. B.4, Plant Shutdown /Cooldown procedure.
MID If RCPI were stopped during this event, do not restart or Jog without Plant Management concurrence. - 4.0 ENCLOSUREI l . J .i Pressurizer Level Compensation
.Z 'X' Power Supplies J.
i .3 'Y' Power Supplies '
.& Subcooling Margirr
~
J , J
.E Inadequate Primary to. Secondary Heat Transfer 2 PAGE 4 of 9 O .
l . ho a,sige esieMg 4"=*P w@ em
- - . - - - - - - ~ . . . , - - - , - - - - - . - - , . , , , , - - - , , - , - - -----.n.---.-c .- --. - , - , --- . . - -. _ , - - - - - --- - . -, - - - . -- - -- - . ,-.,.----, -- - - .- --
- w ATTACEfErr 9.1-6
~
i l i i i i DC:.05URE 4.1 ff g ff l I i I I ' l' I i I i I I I i I I I I I I I I ' ' ' I I iPRE55URI'.IR !.IVEL COMP ,D,S/7'CN , , , , 4 i i i i t i ; t i I : I I i l 6 I I i i i i li,,,i, I ! ! ! 1 I i i ( ). I i, I I I i_ Y I i i I i l i I f I ) i i l' I i ! i l i l i i t i ) ) i i i ! ; , I i l I i ' I I i l i I i i I I i i i i i i i i i i l i i i i i I. I I I i i i l I i l I i i l i l i t i i
.Ii
., ' I
! l 1 I I I i ! ! l l l 1 1 I I I ?:ssauriser t.*acer Tamperatura
.i 330 i i l i l i i l i i i t I i l i '
i
. l ! I l i i i i i i i 1I l 6.70. 6,53 , 600.550 50a ,400 , ,300 ,70 _
i I I i i i .I i i I I i L i i t/ l /l i 1/1 V.A t/ l i f 1,4 I I i i Fl l I i i i i A '/ I l /t l/i / iI j, I/i ij,j i / I/; Ii i t_.
' I I i i i l l i l i i i i i l i i i __ t ; ; i i i l i 1/ : /t i /i/ ./
i i I I 300 p l I I I l l i i l i i i fl i II ii ii /I '// li /1 I/i I'/t/t /,' i / I g i i i t e,
/. i/l A t/ t /t/l l t l I
.1 , _
i l l I I l I I i ) i i i l I / '/ I '/l/s /I /;i / ! / I I J l i t l I i i l I I i i i 1 -l I I i l i I i l I 1 I i i l i /t /i i /: / ;/ l '/i /1/ I l I t l ; l ' 1 25 0 , i i i I I i l1 I I i 1 1 I '/ / i / :/ :/ ! f/i / ; f( t { t l l l l r
- )I Ii ii !l Ii rif l) Ii Ii il il ll it/i //lt /tA!// /I IA / AIfif/Igr/i Il l/ tl i} rg ) l gl l; lgi i l,
G' I i l I I I I II II ii ii )i ii il /l/ // l/!/l/ '/ / i /I i// I/1 \ /fg II lI 1i ll 1l 8 i t i e i ! ; llI1( l
., h ,
i l i l I .I I i- I I I I I '
/ /i / / A / f/]/ l i ! ! ! ! ! t e f 200 ' I I /V V/4 VIA/ I i i i i ; i L T _
l i I i 1 I l //l /s/7 t/l A A I 1 I r I i i i s
$ I '
uI
#) i .
i
- 5. l i i
i // ///l/l A / I I ! l l 1i I//! / / / ! A X / - 1 I ! E l ' l ' I I i i i j i i l i i _ff//,/ 4A
- j
- s. _ '
. I I I l l '
I I I ! l : 1
$ 15a_
E l i i l I lI i i i //////AMA !. ! l / liIlItilllltItiiiti I I I I ( l i I i l l t i i i i l l i i l I l : : ,
\*
{ I I I I L i i i i ,V/A I I I I I I i i I i i I i i i i __ 1 I I I I i i i i : , , i , I i i i I I t I /A*I I I i I i i
/// I il i I I i i ) I i l i I I I I I I t i t i E-
. . . h 103.1 lIiiii
! I I i i i l! ' t , /A iiiiil i l i l I i i i i i I i t t i t e
_. E .
/ Il i I I I I I t i I i i i i i i ; i i i i i ;
I i i l i r ! 'j, i i i i i ; , i , i 1,/ C ' i ) I I I I I I i i i i i i i i i i
; = t~ l i I i ( l I i i l I ; I i ; ;
I l I ! !/ i l I I i i l I i ! i /! I I I I I I I I I I I I l i t I i i i t I i i i i , 53 -_ i ! ! ! LI I i i i i i i l i i i l l l 3
, '/ l f I I"- '
l I i i l i i l l I I i ti i ; I j: I~' . 8 / /I i l i i i i l i l ) i f i /i/ l i l L 6 i L I l i l ) ! ) I l i I i I l l I .. ;
~
I +i
.o ,
,/ 4 i i
/'/i i 6 t l !l l l i I l i ! I t i 6- i i i t i i ! t i , i g i ,
't i
' 30,0 :
~~
~
0 , ' 50
- t 1 '10,0liI l 150 l .l .l l200I!.!.
250 '. , s
' t '
l
, i i .
"?
i ; i i !.ndicated ! I . . thcompensaced - - e , , Level
- - ,(hchas)
' ; .? '
. 1 I L ; it i . t.
I :. : ia i i i i i i i i & I i i 147 97 47 7 - 247 19 7
^7 327 297
- i ; g ,
C:nspacer 2eadouc (Schas !.9) I '
]~ l
..! l (?oincs L-CCS, L-009, L.010,) .. ,
. . . , I O +Y I i l ( l l l g g ; 4 ( ..
' ' ; I ' I I i l' I I PAGF. 5 0F 9 I I hl ! I l I I ,'t i
~ ~ ^ * * ' " * ^ ~ * ' ' * * *
- Me .e.,_
g pCEMENT9.1-6 El El .ZP 12NIEV3 s 0# 'A3VH 4 A i M
- Zi 12NISV3
- OZ# EVH u 1 L 04 EVE Zi 13NIEV3 5
- E g
n . E T. E OZi EVE Lf 12NISY3'
~
kig i x u e .- 4 ( LL# 'I3VE (# 12NISYO A t OF EVE L# 12MIEV3 y h
.y 7
Wu------- ~ - g ' 6-
,M
.T, t e
# L F O "Yl-
~
% gc- = y
- lG =1
= _~,s u
sv { . _, ~ fi I E *J N q d 3 *# w af ; W
. . ge g
o i_-___.--- i w= H '
=*
g *g i g l- = 15 a w r- p," v "5 g C-i( r g; 1 m -s g 8 6_ * *> , y i C- m rv
' L *J u l
O l PAGE 6 of 9 I
/ 1 l
i . -
' l JOS
- i r ggg-'S a s (GENClosug g: 4.: ,
a} ' i 1 115 Vac 1 P -9 s g ! L ? , M i ,
- g j' --
W * ! .. j)*2--- r-W r5 $, N I l E 3 I 4 i de g YF M l E N P- g d}j I I l fE li ( 3 r ' i ' ~ yg V2 Ili 31 ' N 124 *24 -24 -24 Y" ! ; vac ' n Vac a pc Vdc ,_, n gt O, t g e 3 t
, i ,, ,
y < t i n f I I E I F 2 2 2 2 l h Q 5 j 2 o M'<L LE M' L
~'
LM W L LW g i g , i a-
&I ' }R]
o \' o-I'
)RI E E 'E E l _ _ h h h h i Sz n__ Sz a_ A_ n - - -
- a .
8 3 $ 5 ,.; i j
-24 Vdc
+24 Vdc k
-24 Vk %
( y f } ,
" " " U 4 L i U "
We ' NNI CA81 NETS 5-7 ili i CAR. 45 CAS , #7 ,. CONTROL ltH VPOWER(115Vac&124Vdc) ' ' SELECTOR SWITC'ilE4 , ZPOWER(-24Vdc) LOCAL LOADS ONLY Allo LIGHi$
'(NDTFUSED)
- 1 -
ji ..
ATTACIDfENT 9.1-6 . ENCLOSURE 4.4
~
SUBC00 LING MARGIN
? . 1 Adequate Subcooling Margin exists when the SPOS That or Incore Thermocouple data point is 'above and to the left of the variable
- subcooling margin curve.
OR
- a. If botft SPOS displays are not available and at least one RCP is running: Subcooling monitors indicate greater than 50* subcooling. .. .
- h. If both SPOS displays are not available and no RCRs are running:
RCS pressure and incore thermocouple temperature (average of five biohest) plot >50* subcooling or above and to the lef t of the variable subcooling margin curve. I r
.:+
f Y ~ . l-f PAGE 8 of 9 4# l --
..e_. .
-w- -w---,e -- - . - - -- y- ---%e --y .my- .,-,,--* e,e----w- - - - - - v.--.-a=-- s--*-- ---v- -
ATIACHMEIT 9.1-6 ENCLOSURE 4.5 DA Q" - INADEQUATE PRIMARY TO SECONDARY HEAT TRANSFER
]
l
.2 Inadequate Primary to Secondary Heat Transfer .
- a. Primary Method SPOS: RCS temperature is increasing, not stable inside the Post ;
Trip Window . and ,; Te and OTSG Tsat are not coupled. Te 'and OTSG , Tsat should be approximately equal and tracking l 4. together- (coupled) .
- b. Secondary Method (bottr SPOS displays are not available) ,
Use plant instrumentation to. determine the following: 1 RCS' temperature increasing-and _ 1 ] -, Te and QTSE Tsa~t are not coupled. M .' i i l w 5 -- PAGE 9 0F 9-I
; D o - -+,.----_,--,-,v_---_,- . - - -- .._,_._,,__..---.-__--,,-,_,,-..._.-..,s_--,- , . - . - , - - . - -
ATTACHMENT 9.1-7 EFFECTIVE DATE 06-04-86 Rev. 1 Nw WP3097P 0-0055P C.d0 LOSS / RESTORATION OF ICS POWER . 1.0 SYMPTOMS , 1 -* .T Alarm - ICS System Failure (H2PS8-64) ,
.Z ATaiw - ICS or NNI 120 Volt Power Transfer (H2PSB-23) _
T~ .1 Alarm - ICS Trouble (H2PS8-34)
.& Alare - Vital Power Sus.1C Trouble- (H2ES-49)
.E Alarm - Non-Vital Power Sus lE/1F/TJ Trouble (H2ES-83)
.6 Reactor / Turbine Trip
.7 ICS BaiTey Contro1Ter Meters go to Midscale and Hand / Auto Lights -
De-energize -
.5 Main Feedwater Pumps go tar Minimus Speed
[. T) ( .9 Main and Startup Feedwater' Valves ga to Mid Position
.TG Main' Feedwater Flow. Recorders (' Indicators Are Not Affected) Fait tor MidscaTe
.T1 Main' Feedwater ETocle Valves go closed.
.TZ Aur Stears Header Pressure ControT Valve PV-36014 goes to Mid Positiorr Z.0- RESPONSE 1+ .i Establistr control of OTSG pressure and AFW flow irr accordance wittr E0P Rule E
.2 Control Aus Steam Header pressure manually if necessary to help contrar any overcooling that any be occuring.
.3 Determine the- reason for the loss of ICS power by checking the following components:
* .T Breaker C07 on vital bus C.
PAGE 1 of S f w yw ww y- v ----.,-- - -- --- -- 6,-.--- _ _ , --,my --------r--m- - - -- - - - - - - - - - -, -
ATTACHMENT 9.L'7 - RESPONSE (Continued) 1+ 2.3 .2 Breaker J04 on non-vital bus J.
.3 Auto transfer breaker (H8DICS). s
.4 Swftches S1 and.52 on the ICS power auctioneer panel, located in ICS Cabinet 3.
.5 Power supply lights at the top of ICS cabinet 2. and/or POWER ON :
lights and individuai voltreeters and current tasters on the t24v DC power supplies in ICS Cabinet 2. ,
.a Verify Nein Feedwater Pumps are tripped.
* .5 Attempt to restore ICS Power as follows:
CAUTTON: IF ICS Power is restored witnout having the ADVs and T8Vs closed. froar their- AUTOCLOSE switches. and AFW control vaives irr MANUAL at their L&N. controllers, these components will probably cycle and initiate another transient. If AQVs. or- TSVs are being cycled. - to. control pressure, do not re-energize the ICS until their AUTOCLOSE switches are in the CLOSE positiort to - prevent cycling the valves. i; y T+ .T If botfr the breakers}. free vitai bus: C and non-vitat bus J are open: N .T Piace ST and SZ frr the OFF posittorr if they are not 0FF.
.Z CTose irt breaker- CGT on vitar bus C and/or J04 ort non-vital bus; I after ensuring that the buses themselves have power .
.I Ensure that AUTQ TRANSFER BREAKER' (H8DICS). is. lined up to arr energized source,. preferrably vital bus C if it is available..
.2 Piace ST and SZ frr the 04 positiorr simultaneously and continue the recovery based on the response of 31 and S2.
.T If either ST or SZ does. stay closed, proceed with Step 2.6.
.Z IF neither- 51 nor SZ stay cTosed; after- the first attempt, use the following approach:
.T Remove the Power Supply Monitor raodule from ICS Cabinet
- Z., Row 7 Slot 2.
PAGE 2 of 5 O l
-----r- , . - - - - - - . - - - - . _ . - - , - _.-e. .-_%_ -,y , , . -
w.
l l ATIACIEENT 9.1-7 l , RESPONSE (Continued) 2.5 .2 .2 .2 Attempt to reclose Si and S2 again. 1 -e- .3 If S1 and S2 reset, verify at least one positive and one negative power supply energized (22 volts or greater) in )
#- Cabinet 2. If. either the +- bus or - bus is energized i
~
alone (or voltage is less than 22 volts), quickly trip S1 l
- and 52.
.4 Have I&C personnel reinsert the Power Supply Monitor '-j module when they are available. ,
J l e- .5 When ICS Power is restored, transfer control back to the ICS ~ controllers as follows:
; .T Allow the cabinets to wann up. Required cabinet warmup time for )
fuiT stability may be up to one hour; however,. control may be j shifted bacle to the Bailey: controllers as soon as their outputs l stabilize adequately. This will provide more stable control than stroking the A0Vs and. TSVs open and shut, but the operator may h' ave to: make ad,1ustments as the cabinets warm up. 1+ . Z' Vertfy alt Satley controllers are in HANO and reduce their- demands to 05. OTSG pressure must be less than 1050 psig in order to reduce T8V demand ts zero j i
^ CAUTION:
q If ICS' power is lost while the T8V, A0V AUTOCLOSE suitches are int the AUTOCLOSE DISA8LE position,
- the valves wi1T fall ta the mid position..
.I Switcfr the ADV and. TSV' AUTOCLOSE switches. fross the CLOSE position to the NORMAL position; or if the Power Supply Monitor module was removed per 2.5.2.2. switch the ADV and TSV AUTOCLOSE switches to the AUTOCLOSE QISA8LE position Control the AQVs and TBVs froar the Batiey controllers. as. necessary.
!!EE:
If the Power Supplye Monitor module was removed f rt order to restore ICS. power, do not attempt to return control of the AF4 valves to the Sailey
- stations unt1T. the module has. been replaced.
.4 Adjust the Bailey contro1Ters for AFW valves FV-20527 and FV-20528 to equaT the demands for the two valves on the Las controllers. ,
l
)
y 2-i PAGE 3 of S j I
. . - - - - . = - .
r ATTACHMENT 9.1-7 i RESPONSE (Continued) 2.6 .5 Transfer the AFW L&N controllers back to AUTO with their pushbuttons. Control these valves as necessary from the Sailey controllers. (Note Red light above L&N controller should go OUT and controller LED lights shculd shift from red to green.)
,~. .
There is no tieback ature between these two controllers, therefore,' this may not be a bumpless transfer. Some repositioning of the ~ valves may be necessary after the transfer. 3.0 00 CLOSURES
.T Integrated Control Systent Power Distribution g .0
\ _.
P!f,E 4 of 5 O
'~~ -- .,
w-+----w--, - - - . , - - - - _ , , . _ - , , , , . . , . , - - - - -.,.,--g---, -- , -,-- ,_ .-.- ,,
ATTACHMENT 9.1-7 , I 1 1 e
= =
& A 2 *
' I II -
M S E "$ I .
- E Eg =
i i1;.!" 585$ - i
. . . ; ,- =-
l
=
E e-
=
-W 83 Bye #1 busts
$g 5
g gI s ee O = v e > =E W
- m M E S IC :
I E I" 3 _ g,g $ - r - : e
- AAg ,&
'sG . E2* Eq Ek _ ~
- ^
ik I N* w n,-
,3_
e
,KKg*t t' W S' C e
==> -
p. 3 6 m. ,n -%
- stgr wv,. m - M C, r. _ Q -,
,M * *- V --4
(,g,[, ' E f N o [s= ~- - e ! L e e 4, MI -* v rt'3 y m ,
* ^ .- t'"b 2 E z % 3 i O g .
1
,s t' c 1 C 'I ~<
>-+
g 5 - r - E' F Ek. E e =r ' M, g C I """' " 'b km ( w (I(, 2 2* 5 -O- % i$$t M C'.:'. = EC L f t 3 C. .,_-. I 4 t EI l g-gg
-, i., , .-, - - .-
e ' ? 3 PAGE 5 of 5 I l N
Attachment 9.2-1 Page 1 of 3 -
- f.cM.vEN o Mure.;: Pts U ; ' ::.m.:C- c ; . .. 1 .j 2
. . . .. _ _u:
,, ,-.. -i%. + A L:
,g.:au s s: ..;w L."".en .....- ..
_ : . . ;.,, _a
,( ) *3. ' " ' ' O S
' I [i [ 2
%/
*.A. .ap, Nr* Os c""': u C' i .r'* . . . a ::T. '".""". ** V "':e . .
. . t . .. :..
n_ T . es. . -n e.=.s> > r pi . . , .
-- Tee d- c : t , . 21_ -- 5:22r Sester - -
-; i lvrCes Omosa sec, , escA g i e s StM et? ""W,.*:tE I
I 10652'. / A
=--
.a :- . -?zt-1: L :::L n c i : C' ' : . :Y. .
.. A. ,- J . .. :: _ c e_s :.n :n. J:n:: 1 ...:: . . s.,.cJ 2 . O. Z we Z
- s5;"?!*""ICN OF THiS CHANGE
.--- ::: A =c::.:: :::::wr s An= : : tert: N a.,Au-
. :PTMATON. ;NC::.* E th"" N E: AN 0",eG STEhiN* :re#C AMATlCN "O ;:M P'.J"4,7 Ots:mst ANo us nArt wcw cxAncz ts c sVNC"CN A WG.l. A.S Q.l.;?" DtATI WT!WP&C:!3: WTTh E2:3"'NC 1:WPMP.adT. WCIC.:*Y ww A* .4 0,v tr...r ,.t-:t..it a wee: --e t r c e - a. :w:r ._r t:--- a- t :- : r - -- : . ;- -- - e == .---
- 1. Erit? T; T ' t tF ::31 Valve position in:iiC3:10 .'.LY ' S , ~3"'Se '.Y df L 3-U l'**Dd!17 ?!'722 oEscR:P71oN cF CH A NGE: ..
is ECN allows the addition of valve position indication lights on the HlRI ansole for the ADY's, TBY's, MFW and Startup Feedwater Valves. For ADV's and TBV's a set of existing spars limit switch contacts will be used so that the present configuration to ICS is not c.nanged and the additional contacts for the indicator lignts are available. For the startup feeawater valves, the valve position indiciation can be provided to the control room from existing limit switches. Fcr the !?'4 valves new limit switches need to be installed. All of the above installations will recuire new cables, conduits and all I necessary work and materials to make the system functional . New Components: Indicator lights in the control room, limit switches Drawings Affected: E-402 series, P&ID's, N-21.01 series E-700 series, ' Electrical Schematics & Loop Drawings Estimated Total Cost of Pro,iect: $250,000.00 Restart Item 1.la 4..
- tMMENT5 ti.rsdic
- ce b, sanons) -
~__
_1 Erigviserne & Ca.ms'r Gia,viru seser seveneeer g g g7 g3 y4y aee'4 ~ AA.negar, resoneer Com woene
- n. C Tee C tf *W". Lag New .. no C '
= - sun c - s , u .en ne.e, Mce ae. a. v.,u- + n , c. g , , , , ,, g i = as es ,,, cam w_ , e, p-
==r % . ==nes e. 522 ,
n. r
. -. EAR ENG;NEERING AP88tCVAL.s AS INDfCA""EC BY 2 _
l h C Cessnan6 C Cv4 C Nesmear C inewwn ieeen C L,es, ng
>%* D
.. Ao -
O 2 2 E El E u 2- _, a 5 -
;5 W
y y .c p N _ 3 - 7 1:;I I I ii N -
.U
_a. [l C} a w . ( e [
.iiiii m i,iii 2 N %
eI h i;iii., S i= : , , , , 1
~
l l 0 g ar Dy G1 ! ! t i 8- tSi e i l i I ]Oq-O k g lC'i hi Pr g E;! 6 1 i i i p,
=
mi i t i i t c $ h) - S t NL/ l 5 E:s H-
,1 I .
l Neft ht 4t 6i ii ) T ' E R k.-3! 6
- I
*t f f f .
e Ua n C r gg a . [
~
, ~h-f}i!
;g! a i l
, _E =e l I .,
li .2 : im i t ie s i. i5 l sor o
.e r.J s' .
l s r ! i . .dd l'~ p:1 - -
. jL" .
i . l i waile -
,~
ii, i .M . . ii- , u, . .
~
IIn i . i 4 ~~ I ~ ,
. 1 i P
' s e t .
,it f. e ie i; ; Ei* l
lm i jC I.. I te -l lEl l l l
!_ , i- , i
- ! ! . ie o
.., ,::.i. n. .
i I s iL9 6 i ei l[ 1i}, t l 3 4 .pj't.d.ts.:.- e .i .s t i i il i i li .. . . it iii .. . i i
/ t l- l i
lll
. i-l!
lT E I d i la i i ;
.',- ..r.
.j . g i .= ,
E Jo Z a8ed l I i1 ! i S l I-!*6 auamtpeaay
- to R : EE _
s al-a - - - _u.- - - - . _ , -- -__J - _ . _ -_ . _ _ -4
.~ .
c: s s -. <
._ g _ , j .- ,
I .
'J' - A y Attachment 9.2-1
- " "C * ' C ' "* --:
, 7i -
"q: ? of 3 ' .
'N ,
'D . s.
.s .__. '
=
T-
\
/
t
' l l i
1 e I r.- [\. f-%
.I <s i O g -
I
;' ~.
4:- re. - i i i , 34'5
% i IGG i s/ N i
.a
,6 i* i ss i<s i .-,.
1 i .
,o
< , :s
'C D.*
t (- m -
$ i.
i o a'
-, .\ --
I & In t 'c C b 9 ' ' __ '
\N - ,
g' t _. c e occy'O n
; K =iV, n,g
= .
g e s o v c. c c ~ w ' s - - - N -- C I E
'T 3
- i .-
O C 3 D. i . i 4 1
- - .O
-.* = , '
10 *' i . } l i L! ; us , d; ' *
. ,,' . . l c.C0o 'O C ,
ii D l -- i9 igC D 4; _ N oON
! i g- E ,: s : i e5 l,y,;
c 9.y h i i ; _j : ; j e e: c . r3
, t' .
t yf).s. s .:. . - . i , . g{ ei
, ~
l 2 3; E' , ice i. j4 j% !; . - i ! i @nl. . i i ! y, ,= . . hi h l= ; I ( l # Q 3 M I
$6 N nn1) l -
[ 4 [ 'I I ! .! 7th "i ]i i i I _ I I l ! I 1;u t,c - ya , x. '
): !Sf
! 'l R] l l
, e,
- h$ si N I C$
v- lL 3
~
! -{.
m
,y . .
~
k i !k! Ik l ikb b I i I N h e- d ! l f C d!! jkbs! l
= ;si o M!kU 3: 1 ijw! k N[a$ :4 k'.
l\ ! O i >
! I ; C l. g4 i s:s ! : 1 .
_I ity ! i A , d3 0
= d. l t l l4 : j g<501 )2 '$
=
;i. y -l '~Q %r gj - Di
! .i 3' P- GW o m ,d. s~.J l
i
, s :Q.)
q d yi:
- ,'3 l'
, m i si r 35 M g, 5 M< - QsG,s W i s y '
'q; f h: i
)!gd i '
k h.%;! M Q lr h s, 4n ,J
~
q s. a
~
l -J m%. w k,I
'W G s:
e i l'%M. i ~ M s
#_g CC !l a S- J , tQ' Ri . .
l *:, .ikh AD # N % Td %J E, !3 2 !$ ) i i G(W
A r t sa r'hmen t" 4.?-) s -w 1* C l t . N : .' .e
- e
,. 7.. e. 5 " . '
.t, ..
- s<'. -c / c A
{6
\
~ :.-- -
. . 8 '. .
- C Tfr m:3
- a 33 3Asg; ;N 1 ,, ,...e a g;, . g i 3 ,
, i e '
,,.3 i i
'N^
" ~ ..-...
.c :. . -
.we..:e egy , . , '
l "C "
}
"'; " ::" I .7 ;IJ.O.e OnA M E:
See Attached Sheet- . 00:1,14 ~! !=ta.VgE:: *
- e. . 20.".ec Shec sil. 0AL~*3L ATIO N 3 & CESIGN IN FCRM ATICN .
See A:: ached Shee IV. FAILOR E WCO ES: C ms cuaaos ears =or anser ce=t=os === = i sr=u o rst.o l C- rwis emanec ansets cantaos noem eastnumsaration. ::: amas.rsas See Attached Sheet. I SPECIAL MAINTENANCE REQUIREMENTS: ,
; see Attached Shee: i l
V I. SPE ! AL CPER A7!NG RECulR EMENTO:
- 1 See Attached Sheet .
i vil. vent riCA71cN CRiTE R12 : See A:: ached Sheet l l Attachment 9.2-2 See Attached Sheet Page 1 of 8 W . IX. APPRdVALS : .
.{' i, ,.9_" '--
l l
##ebSam ga73 T R8Ca b ga7E S3Vib/sTRUCTUmak gaTg 8Ks714 te EM 74Tle m ga7E M E C Maat Cab gaTg i CCSEg ..? g o. 2 3,e g g a gafE AEVIEe 6 hea m &4 A ga?g 6
- _. - ~ _. __
- cu :: : ::: .
A""' "*"' ~ PURPOSE CF DESIGN CHANGE l The curcose of addinc ADV. T2V. MF'n' control valves, st:-tu: Feedwiter valve ;o:1-1:n indi::tter :n no 91P.! cen: le, is to prov'ce pos'tive valve position indication.
~
II. DESIGN CRITER:A A. Summarv of Chance This change will add 20 light indicators on the H1RI console to provide posi:i e .aise : s;ticn incication for tne ADV's , T7V's. MFW Control Valves. Startuo Feecwater Valves. To aco cne icc,e iacl atcr lignt; will recuire providing panel cut-cut on H12:, acd li=it switches to two valves, add conduit and cable tray as necessary, pull cable, provide power sources and test tne valves to verify accurate indication in the Control - Room. B. Desian Basis Electrical designs are performed in accordance with NEP 5104 . Electrical Design Criteria. Con:rol systems design criteria are performed in accordance with NEP 5105 Systems Design Criteria. g NEP's 4109 and 4112 are used as guidelines for the design. Additionally the Control Room Design Review Criteria report was used for human factor design conside' rations. System Design Criteria NEP 5427 (FWS) and NEP 5444 (MSS) are applicable. C. Scoce . . The scope of this change does not affect any other plant modifications. This modificaticn involves the additica cf indicating lights on the H1RI console above the appropriate controllers, additional limit switches will be recuired where not available. Cables must be pulled from the valves to the position indicators in the Control Room, flex conduit, rigid conduit & cable trays will need to be provided, if not available. New power sources for the indicating lights (independent of ICS or NNI) will be recuired. Also new indicating lights easily distinguishable will be providgg. . D. Ecuipment Class and Power Recuirements The indicator lights wiring ahd power source is classified as Class II. Power source required is 120V DC to interrogate the contacts of the limit switches. l C::) .~ Page 2 of 8 . DRRORDO
- - --- Attachment 9.2-2 ]
1
'~
'")d 5 s ive' UI tav vai ves i Us: J u ~ a - ".
% -.U
' .'? e9 ? '. t O 5 4 .
- sit; n :::ation.
/-- I. ., _ w_M:L.12 ..a CESIGN INFORMATICN i
~
T. , , a u -auru T54 s -ecidica:icn will provide tre coerator .i th valve status
- information independent from ICS or NNI.
ADV's
~
or the ADV's there will de Ooen/Close incication lignts for esca steam iine i.i .e. , for steam line from GTSGA there wili De -
-: --t " C en 'C' ere 0:itien li;r .: ' - tT' t"*a a v>'"es).
Eaca valve nas an existin ~ limi :wi::n ai n extra :entact: :n10
- an :e :et for tne proper function (Ocen,:icse valve positions incepencent frcm the exis J ng contacts that provice ir. formation to ICS. These contacts will be interrogated by an independent ,
power source. TSV's r e- the T9V's there will he open/close in,iicating lights for j eacn valve. The contacts are available through existing limit switches. These contacts will be interogated by an independant power source. . Startuo Feedwater Valves Cor the Startup Feedwater Valves, there will De Ooen/Close
. indicating lights for each valve. The contacts are available through existing limit switches. These contacts will be
, interrogated by an incepencent . power scurca. .
Main Feedwater Control Valves For the Main Feedwater Valves, new linit switches must be provided for the valve positions. There will be Open/Close The indication for eacn of the Main Feedwater Control Valves. position switches will be interogated by a power source independent of tne ICS or NNI. B. Functional Descriotion 44_ The valve position indicating lights will function as follows: Open: When valve (s) is not in' closed position, the red light will light up. Close: When valve (s) is not in the open position, the green light r-s, ud11 light up. (' When the valve is in the intermediate position both lights will light up. , _ : ..__ m _.... . - Page 3 df 8
._,= - - -_- . _ . . . . - - - ___ . _ _ - _
lI i i
~ Attachment 9.2-2 ; [V. * +.L S b. MC'.h. -
Any a;;gre of One I s i;0.ser or signal) wi s t nave no cisect un se 1 wal va ans' *d on i ndiC.* *.i a" bac*'JSe Cf *.he it'cacequent of tne Cower i 5a00if'fGr Ine inO;C5tioga..t ^.ign;. n..Fa1Idre 0f ;ad ".4 ~5 IS *~d . . 4 ... . 41, % ,,
- s. o. o. r..o A. hv a.n c o n c e. n. e s.es.... St...
; . . u.r. . . .a ' . v . i .
- v. . c.o. r.e. . ..au a. . i; :.r. ac.e. p e.n. n. i. e r.we .. . r. - .
N/n VI. SPECIAL OPERATING RE0dIREiiENTS N .< a i , i
.,...,.,.....n.-n..
I N/A i VIII. COMMENTS J This =ocification coes not have an fr.cact on the Plant Technical Soeci fic ation s, a I i 1 i r Q v1-6: i 1 Page 4 of 8, . _.' .
. t .-
e-- -, - , , + . - +-
7 ., 5 I ) \ 1 N ,) --- ADV *a T5%il1 % O PC t j ( f Y J* ) it-% LA N re'9%?!S y . _ . -. 'T L
<*s -;'a5 C?C
~
hD'l 3 Tk'Ntl V) CLinC ('l l' ) m j 26 'n5 G2 A m t > rt E o h KQSG ? M -} O o m :r cn AlsV t (l'AllI $ D a re-ZoS42C VALW M N' RufL N l'(MC2 A a s-My .g W-2 C6 2 ($ t. Nf ?s in ti 'I *
, PV-20 0'2 C eiuszc i N
- ICG Walt! V> vat Vf OPat Ch i-} ~ '-~ ~ f ADV-s ~1t' Ald A l 4De AGMi . _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ y,tg; 73 g p, g L TV-Jos/s A a hna d et IC 5 'If' Alu PJ VAeJE Gag Cn t-) PJ-2or /t is es ziere { [ i W.MAC as NF.
s; gs_ _. m.- p6'l 7- - - _ _ . .._ _ 1't . P' i g
- A' g ) [g
)R At9$ D 4
ic VAe fi Td S1 . .vt .1 Cua i A s i t t_ ' ICt3 VAtos Fu,1J c,n o % W,g e
~~ ~
TGV p,j_ ws a g ym ag , / u n r* l T8V H- 20s G'l ket -MU s +4 :ez V~~~~
- l. ,
AOvt. TBVi ,MFW TGV Pw 20566 25-20563 - ' '" ' r 7av W - 3,n ac g3_ g g; , , wcr
' O ~f 4tC1 VJ- %)W7[ ilsk V ~~i ' d l L'1 %" W 'J^W A h WO f SUFW TV- 205 7s 2 L.hs75 SuFw l +i e w rs/ mM5 e e .- 20s.45
/ ' 43 C7mrw F4 _Eos 2:_ _ _
Ps-a45; 7_ _ _ _ 5 __' $4 ird M hodIMDlWid
, ._i . . . . _
g -----------..r-
~
T.- 05% AS o I g.s..u.,.u.n 'e-o&TlT EFlME3
- lT OSS------.jnlo_- N- .
n..--. 7.. # e. u . ". "17 --- ~--'El-w n..ew 1
' - n m"_* _ 4 W_ ; zGTi, p(.
'g, ---
- - - - -. - _.._ .- - . i . f, -
Attachment 9.2-2 U
*~m
, . ..-n....~
1 -I
- I 1
I t
- 1 * -
! : . 713%g
>J I{ . "!ll eb Ilp'4 l M
it
^
,v1 , i ..
[.i .J *
'I- 0@g; '(m) \v i .
i-si -I j12 ft i' a (ll>8 l I '. l - c A 11g]IgII .*_ r
- it er, - lli' . t l h, E I hh.{![ j[Tki!-lil0l0 m:::..
l[! j.iI.tMJ. O..!IM
.i d 1%
-d i J
). t_ g -- - ,'i n' y. 31, i.
i Ilft!!I!!! ii.- -----
\jf.l{nke.13
. t s.
1 (% %[l$
] l 4
g
. !4 : upa ia# 3
- l d
bl t_[rd !!* [Pql,i i lEG2.:: ' _ _, l p,
) g $s
. PC. i I-
, j/ ,_______ .
, Nj *?._____ @__ g" _j,, , g , ,
J
- A .! i W il f
f,.i:ih 7i
- P~'ili! p, 4 O!
- . , n.;
i
'@h,,ul, h ti h.. n,
. :a. emv%
1 3
- 1 l-
-.mw
'i k sl N. . iT[..) f . ?- $,88 [' N y lTIE.2.,I o . IeiU t
.o : g, .e Lr. .a, 4 a w.+r ,c w e, ., .r,yi .> a, w . ,, .,o, a, ip .
_.,1
, ..v
;t t
- 8 I .'
; y ai 3i i ;e . m 6ief - ~h; >-ljt -
i l 1, ,;s.a
.7 uIl ;- om i-r
, Il 5 '5 ~[' E $ ,
g ,g I I ' Il ' h l l I I; I ,e lr .
,1; l13 lilt I!hlj'VUd IG 18t ll31. . ): I.si i L{
u P L u dj 'll
. D 32:.I*:IIIf1
- a 81 J .: I.: . .!g !
u,ad ilt id.3.; . t
- i* UI , i i . . j,yd k :".
yB!Uknitnitint!1!sistiliidi&!9!i ~ (sh !i ',= i .% ([ %)r,IP,tI{k b %, ir,5r.'r3 5,8$'t't.'k'y.3 ! Ii V
. 7 [ Fl.}i !' ;p Plj'.t**1 al '
ji s (g[d d k. r3. les - _ if :. l'
- 1;u;.>.5,ilp!pi M
i.:!Erl'! i'I
; i
- ,_ :.8 4!
uukN liis p -t-t 1iritililiiiq -
; g--il ji pl; L x cc mi i
m_ le_-L ta LC_U_!. 5 !=1, u_..ti_a_>_J.-L . __3 %.,_ i ____________,. y. ,
._-._______________________,._ _.,________ _ __________, , O
%sj . __l f jj. !3 -
3 M fi '.i il !! {i
, a n.
!9 M!!:.
oj
- l ;= _u u g' : 't hm i i . ; :Wi - T I l4] * --
i ll l i M !ItI!TD !T !t ',4l:=!:= 48p -
.s.!et=:=1 g i .3; .
3 83 8' h -' lj >!<'; C.. 4. d .fc.<?.3.< ? .9m r<GI .< , {
; r.'. pg,it p a h.ggp
' YJ' l !
I Ngg:;Mi' Eaa .5f (r; y ! e F: , g i I! i
!u________._________>L:i!_{g3,t--- . us_ _ l l l. -2 l I
. vn a---
u.- ___ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ , _g :q53 , l- ,, l .
. l ly-9 6 '
3
? ! >':
. :ikt];I j!.3i ;l *. I
; a,! >.
53 wy
?. '.h . ?
-[wii.
st 1 1< r r.it h.Ititi
.e
{l!ri 2
.a
' 3:
[*: i yo
,,e
'5 I
i 11 8 h
* <e < g
, 4-- * * =e> ee!? g. r , l .
3,1 i i s ,
,3 i
' g e
lt!)l;;IN I' i
'd 'i l
l i'g tihtiI!!l.' l 'M;r -Jg!!'I
~ ~
l
.slBRhR f;s !
C_. - l___ _ ____J e ie,l l I
@ h. :m A A t V' ; D ' WI l l
' i * ' ' ' ~ ' ' I '
-i . . ,, . .
Pake-6'of'8
.- .- =
__ _. __ _ _ _ _ m 4 Attachmsnt 9.2-2 k i i I [% $.g i
~~
~
< 3Qd l ., -
b 3 .a 3 ,;. lik 'O<%,Q)'b. p
% ll Y
yk h, E, g, e .. w- Jij .-ilp l.w 4
- 3. _! E i i *j h'Y fI 6
f N-5 4' h' 1
!I h *,:
4 L f
@tp/$1 l *
;I l
i f!
"! ,4 r
3, d {1
*I -_ I g'
- l' ! s r.b id -
p , r k.
'N , !i e e 8
Q- e..)-:48i .: r- '-+e 8 [ f g. .< tis._,n2,2 L s
,%,4 ,<
~~ g
- l' t -
. ~ .e i t*
t J [ gQ g I
# 8 to j
-**-t i ~0 f;}g 4Me . s*
*! d *sst ![* '""' j
- t, _ w._ , ,
[I "a~~ ,,,,.S
,=e - 5 ~I > 4 iN i,i.1 paan.m s- .; !*e t --
a
- -- " 4*7 2- **(e'< r M i2
. rF_-2. .i ,i w;g-F!
+ -
- . ~
. g. 4.
! .- p, W.. . .
.2 c- -
i ,
.. u '
- 4. & ~ E 16 ,
- i D:. v: r, %. 1a- a_-=.r. , D, b w c u__ t i .t t. z,u._ 4
. e, i, , _. , ,g t ,
, .i..
. a . 4,14, . ,
me .o-.s y .. 0 $ A ilh If kam__9i4,,ta.:b-:-4lff .M1I^ t t ~fII e :H 7#- n f_ M_ . NY a 1:
'% s_W !!
h F ;E th W)k-+ d. i/:tr/: :-. ; ;p - ghi "IH ihs[ , ! [! I !-w' ,..m j e tJ 8 2 -xy)
. . ; s, Q 3.j ' ,,1 f J-ik ' .,' [t . : ,,7B ir 3 4 t- -m-31 r t nu Mt !r-j'] !'
; 4) =4 : , m!L a n br.1 h. ,
e s , +
- i~ 7-uee y
~,
. , 4; ,
-- p.: -. - : l:. ..y
,it ;= !i!* + '
i,',!i ;
!) %. :_.f
[ r,! -
"h 4 : 'ai c.a_ n 5 5. !!i. A, . g i ? J--9-4 ,
- =A=! #i i dg a_ :.u:1y i3i:F7 c -c g j..-
;e q ji i .g*
_-.-- a s '
- I > l b.L.[! e a a : .t m)
# f - ' -
M. N rt
- t .Q p,{ g i II F . j sl I,
i[i : b8: 1O
/' d d ,
, ' ' ~ . -' o & @ 't ; ]I/ rQ p fa-lt-lli 4 .a r -e ;-- *+, 4,
, ' ,. t r. i g 16 # .c ii.7r4s - i
.t
~ -
, ~ 1:3-i :
' o.. _..,;-.m M $'q..lC' u :* . ig h a . a ,a y es %,
e q1 + 'd : ; 'g ~l i
,o %ur' q
- s} 1 &
J M l. t;i,s 4 ,i >j1i ; ypg %h .I M
,3. m$p ' i ir! !
n,J i !!. p, I;:::. - i gN i i!-4 g Q. ..
-g--tv _ :., p _,. :-
a. s.
. p :-
- -y q;;:'J.
j 3 b
- e, e)k i(i a i q.
e; *.p>D emr . , : ii. d: r ::
@.t a 1 -* y i*1 n
+l e'-*t-nt 4-. . I= _iP*Jk ;,;. . rN.--_.s*
a-t . 4 ,c - " * - i 5.; ;.;:. mn.w, s t t. l .; . , C 3 g; o.
+ .
a .s r
'a.
1.#4 -_ s: -
- r. t .g i
I!8 h. , .,, , r W -" w%y;,. qree-fG ,.$.2 @P, q' ink i:'4.,i. , ,'c 's t.d i. .i. . u _m t. O s- C s ! ' g-. b2% t ._fts;:
-s s? r. 1 f r T: i'
~~-a
- tri .st' b--
g ,;! l is i ys
*
- S L_. I : =\ = --
c .3
- I
+.
~ l..
5; E t [.x s:
' ~ '
f 7
-- -: yj= r::k.e ** l' li
- c. --,m - i . , i-,$ *4 J - %_'- y -alt.t - PN ::::* .?
- g*: 74 3 ? j. d ,I I
- I ' $D j .g. , , b , l'. I- P. - i 7'
- * := s
-NC f ' s. ! t es k: . l
,t r d j, y,44W:
.L !I ! O;*4.., .* 'I ','.8 g-.1 ii i- q , w 0$':=a ie @+ Mi sD,g
. n. , --'a'f g3l!!;
; t f, i
-:p = .._.m,3- 1. . c-h34 ' i g i g ,
r# ': . L i e asas,' i iR.iliIi i i k !/h i! ._ . ! '
- II .g is O -i : x-q-
st_1x i s,
- .n 6'
n ) , i 1. . . g a a ..
;:nir> i,n ;. ii
, ., ' ' :i:+> :+n. =, 3 M-
[1 r!!' % ';III!p,. il it :.'dM A i li - c.~,3 I i!.ii! ? li!
- % i .L
'::f::: se _- +
aija.
"G ~
Gh
. l;q&.t
;3., g..g y7 ng rg Q~:" l' >'
"._g
#1/ g
.1 e.2E4 4
'*; t 3. ..__% g-lC {4
- n. -
r 02 '
-.=.=. m m --
y L a La r Q 'm"mq I . g.,
'g i.
c i, de
-+ , . .* * -y de ;
I 33, -. l:. I i--- h Id li! l q-l- . .}
.r li 13,
,s. ' 1 . .
i:l
. =j --
s s I. . li, .,
. .. ca m 2.-
- i Pane 7 of 8 , , , _ .,___,.,
I
. - - - . .,s. .
1 1
- -e , - - - ~ , - --,- _ ,-
n wa.,nv n,n -
Attachment 9.2-2 r, I,
. . . \o i =- yt, -
r,m I. I.,, < a .
$ N
/ \ I
( 4 ,.
$4 !.
.!5 l
(,/ E 8T ilE I' hI 3 {$ $ 98 n
,!! )r
.a ;* -
g; d T t, i.x a " 5 Ja s ; i i 1
- = a .l rslrls a sa -
5 ;s s ; t
- w. ? ?D is i p u e _-
.a L.. .
Igz L _;- ;;. ,f .hf_ h __ lg; a ,yq9 %^d. mag . k.h.. . ' . '. . l. __
- s --
@h-i
,% W "h ! T M s 2 - -t 1
i .;; E y
't * **'g i.
D a-c.r -E ow, . , , , , , i 7_e.::p/ s ; 1;. ; ) - - inup ( i 3 3, 3 - I - WI( 0i i; i 2, mm a. q t
"{ tj -
g 9 i
' y
, -{ . t .
s i su; + ~ ,g,, l i 4 s' t _f
; ,f =. , ! '. :;--
. s. \- 'yp .,i 4Q Wr'.'3 "'""g.
,p M-f<:
$3l n U; 1
- l 2 sI
.g M 's, - - tr>
I hp D II i b Y.
) 'N.I 771@ E8' ,:. I,g r
^~' <, Elj.,$ ;; ~ *lh! w i
i f{ z< # e s a
.- i ! qI j
j r:!Id:
*$ i3 ._ ;
>W; yi i
- -a .... ,. ~=.sNH -mw v .H -t,I
,. "" E .
1
)
* .y}n J 1 p
i 9, i: Ee {g j a I . *e *+c i ? %soiD.i f W r*'1 ![
. ' [I,-lw;.,
r . ; s.
-*** /: ~
5 i i g a. i , ls o)- , 4,
- , ,. 3
; ; [
' ' . y: - :. <__...*
- d r">*+p+- e 9_
I G'
, - - .a ,
iA I<e I m.t-.: ~ ~ g 4 .
, msw -
- ,, e i 5 a
if 1
'.s i --ws
%s OeJ '- t .$ $
~?" '$. t h-q" f
} %. ,iTf,E d* 3p" N lii M. @, P, tr gi.4 r,.
I
.- 4 r I,f( g 1 r I I -,,
, !, e #-
.l .i i f f 4 4" %.G, .ti i* - I
> r
,i, . ,
- m2--.-. : .-o r ,$ ,- .
i_ Li { 9*- frLi.yr. r ep.jr
- r -:;%
h
'n v
-i
\l' @e !, t 5
J.u w s. d = 2 h! Q; rT-Jf - o i
- f!'. )! Mp l x "" "}
/ '
- :
- ip ~. s.4 p ;?I, - L %ilfjij I ti F i 9 *",'!:f :.I.[. : i' : '[ ' .
li l y a '~ h 'ts. i ===,-1 8g ,[ If 8.) j
.I
--mBl 'r ' _N
- 8 +
.T *fj "!! ii ii v.i% ?E i
. I;; I (L !esm . ,,ij-q p-~:,. je!!
M.. P[T ..d >I _e.r- 4
*W .
4 wz-*T
,N, ?,,
- e.
- c ., p
! g , jp P' I ~ -
o -
- ,/ :
=
a + G, , + -. r- . t : ! 3, --c t
- a'""m.=m-[It t:LlwI s
,. -~~: fj *%s * *' .a .2-.N' er
,;W " ';]y, ,- n ." :i _; Jg :. 7g
;n l ,t%
O- f**L j.iF:i.-:iavJ -.I
- - - - A .. r.
-"--* g .-
i -
.;r
.: . J. .11--i . 5. ,
ge {. i !,...r .t -- :
,... r g 4 t - r j f
+1:; s :._
/ec-**:- -* =a=f i s !E --5S 3,:
,A=c ~m r /=-,4
* , r- + - = g
[. i
- -!L-
. i((, . _.':-=--
-:I-:i4
-y 4 3 tf ,
_e. I.,,e p, r JJ .r. -.
.I,
- < tg-i, l. ::., :[a-ev.6,-:
a s n gzg
- -- E #;. --
- t i s ! ;.. r "*ti- t c .
. M; "t 2s :
i : ,. ' yf. --sH-a > . ii - Q E y
.t C' Ei lg
- I
,1 1-~..f.>; gI g 8 p':(--.::~%' a r !,%!! ,Q- Q- g l-!g # l , <' - t..
- - ' ~-is h, '
s ! - ~ s ! * @ sii
~
Lr---gs :- .
~
idii4Lij4j.
= -4 - -- ,;. '@; . :-. e ;n--$
4
- g J !'*Ir.*!. -o- 3
- ::::', m% -/, ld- : .- 'rr'm e 2-!!. i;E-i! '2]F -
.- i . .: 'f. 'I!g.I o- ,*-4 i
!-ig-!
1-fl*:!. , <! - % M. 5 - N 5- 1~it} i :
- i ,is i".;,f l :'. '- - -
41 8 _i v iM :) ' 7,.,3,;1 . :______ if 9 -11 :f--U r g :, i i . i 1 .._ _ , , a r _g. , a
-t
+ =! -. ,',' *e'8 I
'!N.I' ;!l'{
{4P% p N>. Fd' ,..I g = (i ', ~d.:' : : m 1, -0g'r"ie 1 r @ 's i . -
-f 5.rgg!:_.
- " i '-, .;' :p ' -*=3 a
- t f g-c.4 eg g
- .. l
. 'J d~t f ~4LI
, , I i
{ 'Q.,jp'thijw;
$ _ . _-e !, ; a :, .
- t-*--94 2i J y+ l! Y6--g s i : -= r =
- -ijw:!i ,:g :m.a ._r .i p.1 r, m "*
rqf./, , l- f !
>l ! .-Q. !Q~. g[-. : Ip gg
+ - -- ' 8
+1,i sa- e g .o-Pd %n 3....,t-.--;--
L,sis g-. p a. k ri. i : G :r8,.u : 3-3 3
.v.ia- -
i 3, ' p r pr r r a. .
* 'i-w.s. r
---g' i, i.l.i S..
- *--i t t
'- ':t va *q v i :
1
%v
- i- " -- , i- -- h-#--s-i' 7; !. - t! g-#.4.::t-q n :- * .
*5s. . -1:-e-----
4 ; , - 23
&y,. <3 --*' ; 't ..
+gf 3 -M 7, n --gy!i _ pij.yj..;j...jw:
; 5 1 !
4 of f.24 l
.: l l '
M " #' ! 0 !!N!"S
- h7
,ap j
%ufT,'%aw.
nt 4 : t .u;y .~<7p ;;;g e
- b. f -
i= , --t - :-h-- - ar -- r -. ,8 4 yt
- g 11. t:i: M,:4 - r U,
. .a: -- e l Je > .~n, .-r. . ..._-
~ ~ ' ' ' ~ ' ~ . , , ~ - - . ,g .. ..
Page 8 of 8 .
- "1 ).i g -
)$'- W. ,
. _ - _ _ _}}