ML20002A682
| ML20002A682 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 10/31/1980 |
| From: | Baynard P FLORIDA POWER CORP. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| 3--3-A-4, 3-0-3-A-4, IEB-80-16, NUDOCS 8011210249 | |
| Download: ML20002A682 (4) | |
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Mr. J. P. O'Reilly Director U.S. Nuclear Regulatory Connission Office of Inspection and Enforcement Suite 3100 101 Marietta Street Atlanta,GA 30303
Subject:
Crystal River Hnf t 1 Docket No 6 3n? )
Operating License No. DPR-72 I.E. Bulletin 80 POTENTIAL MISAPPLICATION OF ROSEMOUNT, INC. MODELS 1151 and 1152 PRESSURE TRANSMITTERS WITH EITHER "A" OR "0" OUTPUT CODES
Dear Mr. Reilly:
Enclosed is our revised response to I.E.Bulletin 80-16.
Please contact this office if yu require ar1y additionai discussion con-cerning our response.. _
Very truly yours,.
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P. Y. Baynard Manager Nuclear Support Services Lobo (F06)DN97-2 Attachment cc: Director D
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Office of Inspection and Enforcement L,
Washington, D.C. 20555 COM General Office 320t Thaty eurtn street soum. P O Box 1do42. st Petersburg. Fbnda 33733 e 813-866-5151
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FPC RESPONSE TO IE BULLETIN 80-16 Item 1:
Determine if your facility has installed or plans to install Rose-mount Inc. Model 1151 or 1152 prcssure transmitters with output codes "A" or "D" in any safety-related application.
Response
Eight (8) Rosemount Inc. Model 1152 pressure transmitters with out-put code "A"
are installed at CR-3.
These are listed in the attached table.
Item 2:
If it is determined that your facility has the transmitters des-cribed in 1 above in any safety-related application, determine whether they can be exposed to input pressures that could result in anomalous output signals during normal operation, anticipated transients or design bases accidents.
If the affected transmitters can be exposed to input pressures that could result in anomalous output signals, perform a worst case analysis to determine whether the anomalous signals could result in violating any design basis assumption.
The safety-related application shall include control, protective or indication functions. If any safety-related applica-tion does not conform to the above requirements, address the basis for continued. plant operation until the problem is resolved and provide an Janalysis of all' potential adverse system -effects which -
could occur as a result of a postulated pressure transmitter mal-operation described in Enclosure 1 of this bulletin.
In each instance, the analysis should include the effects of postulated transmitter maloperation as it nelates to indication, control and protective functions.
The analysis shall address both incorrect automatic system operation and incorrect operator actions caused by errone]us indications.
Address the conformance to IEEE 279, Section 4.20 in your analysis.
Include in your. analysis the fol-lowing table:
a.
Complete model number.
b.
Transmitter range lisits.
c.
Transmitter range setting.
d.
Range of process variable measured for (1) normal and (2) accident conditions.
e.
Values of process variable which could produce anclamous in-dicaticn based upon your evaluation.
f.
Service / function.
Lobo (F06)DN97-2 i
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Response
For each Rosemount Inc. pressure transmitter installed at CR-3, the model and tag numbers, range and setting limits, indicating parameters, etc. are identified in the attached table.
Pressurizer Water Level Indicators:
Thesa will not be exposed to input pressures that could result in a.
.uomalous output signal during normal operation, anticipated transients or DBA.
- Because, (1) CR-3 uses wet leg reference differential pressure measurements and (2) the differential pressure transmitter taps are located such that the transmitter cannot see an overpressure of 140% of the maximum setting range limit, since at the maximum setting range limit, the pressurizer is indicating no water level and is empty.
Likewise, an anomalous input signal in the reverse direction is not possible because at 140% in the reverse direction, the transmitter cannot see any differential pressure since the pressurizer is full.
Reactor Coolant Hot Leg Pressure Indicators: Here the transmitters cannot see 140% of the maximum setting range because it will be beyond the range of the system pressune as regulated by Code Safety Relief Valves. Likewise, an anomalous output signal in the reverse direction is not possible because at 140% in the reverse direction, the system would indicate negative pressure, this is not possible.
Item 3:
Submit a complete description of all corrective ~ actions required as a result of your analysis and evaluations, together with the schedule for accomplishing the corrective actions.
Response
No corrective actions are required. See response to Item 2.
Lobo (F06)DN97-2
TABLE The Following Rosemount Inc. Model 1152 Pressure Transmitters With Output Code"A" are Installed at CR-3 I
Transmitter Transmitter Safety-Related Variable Measured Model Tag No.
Location Range Limits Range Settings Application?
Condition ll52 HPSA 92PB RC-1-LT-1 0-375" H O 0-320" 11 0 Yes Nonnal, transient and 2
2 accident conditions Pressure 3
ll5%i!PSA92PB RC-1-LT2 water level 0-375" 11 0 0 -320 " 1i 0 2
2 indicators 1152 HPSA 92pP RC-1-LT3 0-375" H O 0 -3 20 " 1i 0 2
2 ll52GP9A92T0010PB RC-3A-PTl 0-3000 PSIG 0-2500 PSIG Reactor Coolant flot 1152GP9A92TD010PB RC-3A-PT2 Leg Pressure 0-3000 PSIG 0-2500 PSIG Indicators for Steam Il52GP9A92T0010PB RC-3B-PTl Generators 0-3000 PSIG 0-2500 PSIG 3A and 3B ll52GP9A92T0010PB RC-38-PT2 0-3000 PSIG 0-2500 PSIG Il52GP9A92PB RC-132-PT Reactor 0-3000 PSIG 0-2500 PSIG No Nonnal Coolant Hot Leg Pressure Indicator For Steam Generator 3B
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