ML20198M293
| ML20198M293 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 10/22/1997 |
| From: | Curry D External (Affiliation Not Assigned) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUM2-PPNR-0702, NUM2-PPNR-702, NUDOCS 9710290045 | |
| Download: ML20198M293 (8) | |
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l PARE'ONO Daniel L Curry, vn e Prewx*W. Ox w mm es Parsons ('ower Group inc
'?675 fAorgaolown Haad
- Head <ng Poonsy!vania 19607 * (610) f%2306
- F an (010) 8%NiO2 October 22,1 " 1 Docket No. 50-336 Parsons NUM2 PPNR-0702 L U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555 l
l l
I Millstone Nuclear Power Station Unit No. 2 indensadent Corrective Action Verificalien Program (ICAVP)
Gentlemen:
his letter transmits summaries of telephone conferences between Parsons Power Group Inc., the U. S.
l Nuclear Regulatory Commission, NNECo and NEAC on October 14, October 16 and October 17,1997, he purpose of these telephone conferences were as follows: October 14 - Emergency Diesel Generation 1
Operation, Jumper Device Control Sheet Number 2 97-009, Electrical Calculations, PDCR 2 57 76 Instrument Line Freeze Protection, lland Switch Operation and Testing, Calculation Tracking Program Access; October 16 - Control Rod Motion inhibit Circuit (CMI) & liigh Power Tip Se. mint Verification, I
Calculation Change Notices Provided with Cal ulations; and October 17 - NNECo Design and Licensing Documents Relating to DR-0027, Content of 2 s nk status letter to NRC, Please call me at (610) 855 2366 if you l' ave any questions.
Sincerely, and pu Daniel L. Curry Parsons ICAVP Project I rector DLC:djv Attachments 1.
Telephone Conference Notes from October 14,1997
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2.
Telephone Conference Notes from October 16,1997 3.
Telephone Confe.cnce Notes from October 17,1997 cc:
E. Imbro (2)- USNRC
- 11. Eichenholz - USNRC j
P,. Laudenat - NNECo J. Fougere - NNECo Rep. Terry Concannon - NEAC Project Files 9710290045 971022 PDR ADOCK 05000336
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ADMINISTRATIVE CONFERENCE NOTES October 14,1997 t
PURPOSE:
Administrative telephone conference with NNECo, NRC, NEAC and Parsons to discuss:
Emergency Diesel Generation Operation Jumper Device Control Sheet Number 2 97-009 e
Electrical Calculations PDCR 2-57 76 Instrument Line Freeze Protection e
lland Switch Operation and Testing a
Calculation Tracking Program Access Date:
October 14,1997 List of Attendees:
NNECo NRC NEAC Parsons Fred Mattioli Supenisor, MP2 ICAVP John Nakoski Waync Dobson Mike Ahern Manager CMP Eric Blocher Rick Bonner Supenisor Operations Mike Akins Rich Ewing Supenisor - Design John liilbish Engineering Paul Collette Supenisor - Design Bruce Deist Engiacering Steve Stadnick Engineer -Technical Candace Segar Support Eng.
Jeny Ferraro Engineer Technical Nayan Shah Support Eng.
Mark Fitzgerald Bob Porter Richard Boyd Tom Klein CliffMarks
- l. Emergency Diesel Generation Operation a) In OP 2346A, Section 4.6, " Manual Start of"A" DO from the Control Room,"
What purpose does depressing the Alann Reset sene?
Can the Operator read 1/8 to 1/4 from the Fuel Racks?
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ADMINISTRATIVE CONFERENCE NOTES
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October 14,1997 Why do you go to Mechanicai Governor Control?
e When in Mechanical Govemor Control, is the DO Operable?
e Does the Engine trip on Reverse Power?
e is this a Temp-Mod? Ilow is it tracked?
e Please explain how the computer senses DO Starting Time, what instrument is used?
e flow is DO Loading Time Sensed and indicated?
e b) e,ection 4.8, " Transferring Control of"A" DO,"
is the DO Operable in Local Manual?
e c) When do you use Local Manual?
Discussion 1.
Depressing the alarm reset will drop out all of the alarm relays. This can 1,e seen on drawing 25203 22041 sheet 1 15.
- 2. The operator has to approximate the 1/8 to % reading.
- 3. The mechanical governor control would be used if the electronic governor was not operable, or if there were a fire in the control room. Operation with mechanical governor controlls not the normal mode of operation. If the DG were synchronized to the grid,it would upt be operable because if off-site power were lost it would not sense the de.
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energized bus and pick up the load.
- 4. On reverse power the breaker is tripped, not the diesel.
- 5. Look at surveillance procedure SP 2613A/B for information on how DG starting time and loading time is measured.
- 6. The DG is operable in local manual. This mode is used as an option for testing when there is a desire to improve coordination by having the operator and maint. personnel I
together. The DG does receive auto start signals when in local manual.
- 2. Jumper Device Control Sheet Number 2 97-009 BACKGROUND: Jumper Device Control Sheet Number 2-97 009 was written and approved on January 31,1997. The device was noted as not having an expected duration of >3 months. The.
device was not installed at the time of our obtaining copies of the Jumper Device Control Sheets.
(Our request for copics that brought us this sample was originated on 8/13/97. It was noted at the time of our request that the device was still not installed.
OUESTION:
a) llow long can approved device installations exist before it is required to be inste.lled or canceled?
b) sevices held for months prior to installation, what checks are conducted prior to sustallation to confimi that situations described in the approved control sheet have not been altered?
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ADMINISTRATIVE CONFERENCE NOTES October 14,1997 c) What is the current status of the anticipated repairs to the TBCCW system mentioned in the control sheet?
d) The Jumper Device Control Sheet refers to " Tag Type". Neither WC10 or WC2 contains infonnation concerning " type of tag". Please explain what tag type means and what procedure govertu assigning " tag type" Discussion 1.
This example is an unusual case. The jumper was prepared to support service water system work started this past summer. There is no limit on how long an approved device can exist before installation. Procedure WC 10 requires that the shift supervisor check i
existing conditions prior to authorizing installation of the device.
- 2. The jumper device was approved as a contingency in case the A&B heat exchangers were restored first. Actually the C heat eschanger was completed first. Work is espected to be completed on the system in the nest 2 to 3 weeks.
- 3. Tag type descriptions can be found in WC10 in Attachment 4.1.
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- 3. Electricti Calculations a)
Calculation PA91 - 004 - 0286E2 Attachment.1, Pg.10 & 12 uses a multiplier for an
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adjustment of short circuit amps for nodes B41 ABL (.97), Bill (.98), B62L( 93) &
B61L (.P6). What is the basis for this multiplier factor?
Response: A GE bulletin on mul.i-case circuit breakers guide is the basis for the multiplier. Page 5 of Calculation PA91-004-0286E2 identifies this. A multiplier is only applied to multi-case circuit breakers b)
What calculations evaluate minimum voltage effects on motors and other loads? We have identificJ two associated calculations PA91 - 004 0276E2 (voltage profile) &
PA93 - 045 - 1273E2 (transient analysis of fast transfer).
Response: Other calculations are for MOV's: PA89-078-0272E2 and MCC control circuits: PA91-004-0272E2 The fast transfer transient is the bounding case for motor starting.
- 4. PDCR 2-57 76 Instrument Line Freeze Protection BACKGROUND: This PDCR identifies two possible solutions to prevent freezing instrumentation lines to the Primary Makeup Water Tank, Refueling Waier Storage Tank, Condensate Surge Tank, and Condensate Storage Tank. Neither solution is identified as the one used. No other
' documentation is referenced in this PDCR.
OUESTION:
- 1. Which solution was used to resolve this problem?
- 2. What documentation was used to implement this solution? 'Ihis information is not in the PDCR.
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ADMINISTRATIVE CONFERENCE NOTES October 14,1997 Discussion NNECo suspects that the PDCR copy we have may not be complete. They researched the e
tank freese protection and spoke with an individual who worked on the modification.
PDCR 2 57-76 installed insulated boxes. Then PDCR 2 6176 repowered the heat tracirig' to make it more reliable. Finally, PDCR 2 22177 installed an insulated metal building around the lines to prevei.t freezing. NNECo will provide a copy of these PDRCs,
- 5. Hand Switch Operation and Testing a
For valves 2S1659 and 2S1660 please explain how switches llS3659A and llS3660A are used in l
operation. Also how are these switches tested? We are having difficulty finding the procedures that address these switches.
Discussion
- 2. In response to a question on what drawing could we find the hand switches. NNECo responded on 10/16/97 that the switches were not added to the drawings after a 1977 78 time frame PDCk installed them. CR M2 97 2362 will be prepared by NNECo to address this deficiency.
- 6. Calculation Tracking Program (CTP)
IT has been sever.1 weeks since NNECo put CTP into Passport, Parsons still does not have access to the CTP module in passport.
Discussion
- 1. NNECo will expedite the correction of this situation.
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ADMINISTRATIVE CONFERENCE NOTES OCTOBER 16,1997 PURPOSE:
Administrative telephone conference with NNECo, NRC, NEAC and Parsons to discuss:
Control Rod Motion Inhibit Circuit (CMI) & liigh Power Trip Setpoint Verification Calculation Change Notices Provided with Calculations Date:
October 16,1997 List of Attendees:
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NNECo NRC NEAC Parsons I
Fred Mattioli Supervisor, MP2 ICAVP Steve Wayne Dobson Reynolds Bob Borchert Supenisor Technical John Strang, Support Eng Rich Ewing Supenisor Design Candace Segar Engineering Jim Diluca Design Engineering Lou Mscichowski Richard Boyd Larry Collier Rich Glaviano CliffMarks 1.
Calculation Change Notices,(CCN) Provided with Calculations In follow-up to Parsons not having access to CTP in PASSPORT, has NNECo provided CCNs along with the calculations that have been requested via RAls?
RESPONSE: NNECo has provided CCNs along with requested calculations if the CCN was issued prior to the CMP complete date.
-2.
. Control Rod Motion inhibit Circuit (CMI) & liigh Power Trip Setpoint Verification A,
SP 2411 A tests the CMI circuit. This Verification occurs with the Shutdown CEA's -
withdrawn.
What procedure verifies that the Regulating CEA's can NOT be withdrawn with the Shutdown CEA's laserted?
t RESPONSE: NNECo can not find any procedure. There is no Tech. Spec requirement to verify this interlock.
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ADMINISTRATIVE CONFERENCE NOTES OCTOBER 16,1997 What Procedure tests the CMI for CEA movement Normal Sequence and Bank Overl. p?
RESPONSE: SP-2411. This procedure is currently marked DO N0 f USE, which refers to the fact that its bi annual review is past due. The procedure will be reviewed and restored prior to needing it for r'artup.
SP2411 A appears to only test Shutdown Group A and Control Group 1. What tests the other control rod groups?
RESPONSE: The same relays supply signa's to both the A & H groups so SP2411 A verines both groups. He relay is non-Q so single failure criteria does not apply.
B.
The liigh Power Trip setpoint, when at zero power, is set at about 15% of full rated power automatically by the system. This setpoint ramps down as the power is reduced during shutdown sequence. During power ascension, the setpoint is changed by depressing the " reset" push-button which tells the system to recalculate a new High Power Trip setpoint based on the current power level.
Is there a surveillance to con 6rm the setpoint (~15%) on plant startup?
Is there a V&V (software verification and validation record) which proves that this setpoint will always be the same when at zero power (or other power levels) from cycle to cycle?
RESPONSE: SP 2104FA,B,C,D is the surveillance test.
sed on a discussion with ABB-CE there is a conversion factor of 20 needed to obtain the lower setpoint value in terms of power level. The factor converts the 0 to 5 volt signal to power level. (i.e. 5 volts equals 100% power). On the main control board, power level is indicat,d by a pen recorder. The trip setpoint is indicated by another pen. When the trip is within 5%, a pretrip alarm is given and a push button lights up. The operator depresses the button to reset the setpoint.
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ADMINISTRATIVE CONFERENCE NOTES OCTOllER 17,1997 PURPOSE:
Administrative telephone conference with NNECo, NRC. NEAC and P. arsons to discuss:
NNECo Design and Licensing Documents Relating to DR 0027 Content of 2 week status letter to NRC e
Date:
October 17,1997 List of Attendees:
NNECo NRC NEAC Parsons Joe Fougere Manager, ICAVP Gene Imbro T. Concarmon Wayne Dobson Fred Mattioli Supervisor, MP2 ICAVP Steve Eric Blocher Reynolds Richard Laudenat Director, ICAVP Rich Mike Axins McIntyre Gary Komosky MP2 ICAVP John flilbish Bill Matejck TRT -ICAVP Dom Ramos i
Ray Necci Director, CMP /ICAVP Rich Glaviano 1.
NNECo Design and Licensing Documents Related to DR 0027 NNECo provided a notebook of design and licensing documents to the NRC, NEAC, and Pa. sons in preparation for the phone call. The infonnation in the notebook will be an attachment to NNECo's response to DR 0027. Since NNECo will be referring to the infonnation in their DR response, they wanted to ensure Parsons had a copy to help facilitate Parsons review of the response. During the phone call NNECo briefly described i
cach of the documents.
2.
Content of 2 week status letter to NRC The NRC would like to see projected dates in the 2-week etatus letter for the following:
Tier i discovery completc Tier 2 discovery complete Tier 3 discovery complete e
Interim and final reports e
Discovery complete means the main review is done and DRs are written. Resiew of DR responses and corrective actions can be on going.
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