ML20092H801
| ML20092H801 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 10/08/1988 |
| From: | GEORGIA POWER CO. |
| To: | |
| Shared Package | |
| ML20092F288 | List:
|
| References | |
| CON-IIT05-110-000C-90, CON-IIT5-110-C-90, RTR-NUREG-1410 22721-C, NUDOCS 9202210362 | |
| Download: ML20092H801 (10) | |
Text
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Vogtle Bectric Generating Plant 22721-C
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Georgia Power CNN en. ~.
Unit
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PRESSURE SWITCH CALIBRATION
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PRoCEDU mE No.
1EVISioN PAGE No.
VEGP 22721-C 3
2 of 10 s
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1.0 PURPOSE 3
J The purpose of this procedure is to provide instructions for calibration of a Pressure Switch.
2.0 PRECAUTIONS AND LIMITATIONS 2.1 All steps in thia procedure are to be performed in sequence except as noted.
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2.2 Performance of procedure steps, as identified by a double asterisk (*/*), shall be initialed on " Checklist" except when recorHIng data on Data Sheet.
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2.3 Any calculations necessary for the performance of this procedure shall be shown on " Calculation Sheet".
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2.4 The instrument may be located in a radiation area, service a contaminated process fluid, or be contaminated.
If so, follow instructions on " Radiation Work Permit".
[]
2.5 For Safety-Related systems, an Independent Restoration Verification shall be performed, after completion of Test / Calibration, and initialed in " Restoration s
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Verif' cation" section of " Checklist",
i) 2.6 Ensure that each lead (wire) to be lifted is marked with a completed and installed jumper and lifted wire tag.
Instead of " Control No.", the " Procedure No."
should be identified on the tag.
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2.7 If this procedure is completed and temporary jumper (s) must remain installed and/or lifted wire (s) cannot be reconneccel, a Jumper and Lifted Wire Clearance must be obtained per procedure 00306-C, " Temporary Jumper And Lifted Wire Control".
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2.8 This procedure may be performed in any plant operational mode.
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2.9 For Non-Safety Related systems QC Hold Points may be marked non-applicable (N/A) on " Checklist".
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2.10 If, during performance of this procedure, any of the following occur, immediately notify I&C Foreman:
2.10.1 Any personnel error, procedure inadequacy, or malfunction is identified which could prevent fulfillment of " Acceptance Criteria".
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p t 2.10.2 Any test exceeds specified limits.
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i PRoCEDU E No.
LEVISloN PAGE No.
VEGP 22721-C 3
3 of 10 PREREQUISITES OR INITIAL CONDITIONS Suaervisor,ordesignee,~of.workto'be:(h.
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1.1 Notify Shift
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performed and o)tain signature authorization.
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3.2 Notify Reactor Operator (RO) instruments associated with pressure switch may be erratic or inoaerable a
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during performance of this procedure and citain RC '
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signature.
3.3 TEST EQUIPMENT REQUIRED 3.3.1 Variable Pressure Source
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3.3.2 Pressure Test Gauge
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3.3.3 Triplett VOM Model 630 or equivalent
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3.4 Verify all Prerequisites or Initial Conditions are
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met.
4.0 MAIN BODY 4.1 CALCULATIONS "3
4.1.1 Obtain instrument setpoint/ range data from applicabic
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controlled document (s) and record document number in
" Comments" section of " Data Sheet".
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4.1.2 Calculate and record expected trig point values in
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" Expected" section of " Data Sheet
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4.1.3 Calculate and record Hi and to Limits in "Hi Limit"
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and "Lo Limit" sections of " Data Sheet".
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4.2 REMOVAL FROM SERVICE 4.2.1 Disconnect lead wires from switch as required. (For
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Safety-Related systems, an Independent Verification is required.)
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4.2.2 Close isolation valves, if applicable.
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PROCEDURE No.
LI.YlSloN PAGE No.
VEGP 22721-C 3
% of 10 f^
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ANY TRAPPED FLUID VENTED DURING
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SERVICE MAY BE CONTAMINATED.'r A, y
SUITABLE CONTAINER, AS
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RECOMMENDED BY THE HEALTH i
PHYSICS. DEPARTMENT, SHALL BE.
USED TO ENTRAP THIS FLUID.
THE FLUID SHOULD BE DISPOSED OF IN ACCORDANCE WITH HEALTH PHYSICS DEPARTMENT PROCEDURES.
4.3 CALIBRATION 4.3.1 Connect pressure source and test gauge to input test []
ports.
4.3.2 Connect V0M across appropriate switch contacts.
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4.3.3 Adjust pressure until' switch contacts are reset.
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4.3.4 Adjust pressure until switch contacts trip.
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4.3.5 Adjust pressure until switch resets.
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4.3.6 Record trip / reset values in appropriate "As Found"
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sections of " Data Sheet".
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4.3.7 If As Found values are within limits specified on
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" Data Sheet" and more accurate values are not desired, record values in "As Left" section of " Data Sheet" and proceed to subsection 4.4.
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4.3.8 QC Hold Point
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Obtain QC authorization to proceed before continuing with procedure.
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4.3.9 If As Found values are not within limits specified on
" Data Sheet", or more accurate values are desired, proceed as follows:
a.
Adjust switch settings as required to obtain correct value.
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b.
Adjust pressure until contracts actuate.
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c.
Adjust pressure until contacts reset.
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(
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d.
Repeat steps 4.3.9a thru 4.3.9c until no further adjustments are necessary.
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PROCEDURE No.
GEVISioN PAGE No VEGP 22721-C 3
5 of 10 4.3.10 If pressure switch has more than one switch contact, (f-)
repeat steps 4.3.2 thru 4.3.9 as required.
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4.3.11 Record final values obtained in "As Left" section of
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" Data Sheet".
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4.4 RESTORE TO SERVICE
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-l, 4.4.1 QC Hold Point
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Obtain QC authorization to proceed bhfoYe continuing with procedure.
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4.4.2 Remove all test equipment installed during performance
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of this procedure.
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4.4.3 Slowly open pressure switch isolation valves.
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4,4.4 Reconnect lead wires to pressure switch.
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4.4.5 Inspect valves, tubing, and instrument for leaks.
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Immediate action shall be taken to correct any leaks found.
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4.4.6 Verify instrument reflects current plant conditions
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after it is restored to service.
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4.4.7 For Safety-Related systems, have an Independent
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Restoration Verification. performed by designated personnel.
[1 4.4.8 Notify RO that instrument has been returned to I
service.
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l 4.4.9 Notify Shift Supervisor, or designee, of completion of l
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' work including Test results and obtain Signature on l
" Completion Sheet".
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5.0 ACCEPTANCE CRITERIA 5.1 The Acceptance Criteria for this procedure is that the instrument is within limits specified on Data Sheet.
5.2 Satisfactory Completion of this procedure has been met when I&C foreman has evalunted data obtained per Acceptance Criteria of this procedure, reviewed and signed Data Sheet provided.
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703445
PROCEDULE NO.
AEVISION PAGE NO VEGP 22721-C 3~
6 of 10
(
6.0 REFERENCES
6.1 Appropriate Instruction Manual 6.2 Appropriate Electrical and Mechanical Drawings 6.3 Procedure 00306-C,
" Temporary Jumper And Lifted Wire Control" END OF PROCEDURE TEXT
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PROCEDURE NO.
f4EVl$loN PAGE NO.
VEGP 22721-C 3
8 of 10 Sheet 1 of 1 CALCULATION SiiEET
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'N Show all calculations performed during course of this procedure in the space below.
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Completed by:
Date Reviewed by:
Date Approved by:
Date 1
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7034r3
PRoCEDU, E No.
WEviSloN PAGE No.
VEGP 22721-C 3
9 of 10
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i CHECKLIST SHEET 1 0F 1 3.1 Shift Supervisor Authorization
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.e Signature, E[ pate]
3.2. Reactor Operator (RO) Notified
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Signature 44 i
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Step Verification Step /Substep Initial Step /Substep Initial 3.4 Prerequisites 4.4.3 Isolation valves are met open 4.2.1 Lead wires 4.4.4 Lead wires disconnected reconnected 4.2.1 Independent 4.4.5 Leak inspection Verification 4.4.6 Current 4.3.8 QC Notified conditions reflected 4.4.1 QC Notified 4.4.2 Test ecuipment removec.
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s' RESTORATION VERIFICATION Initial f
1.
Isolation valves open 2.
Lead wires reconnected
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i Performed by:
Dater Reviewed by:
Dates l
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7094$
PROCEDUAE NO.
REVISION PAQt NO.
VEGP 22721-C 3
10 of 10 Sheet 1 of 1
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COMPLETION SHEET
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PROCEDURE TITLE PRESSURE SWITCH CALIBRATION TIME TEST STARTED BY DATE DEFICIENCIES OCCURRED AND ACTIONS TAREN u a "10"* (fh
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TEST RESULTS:
ACCEPTABLE []
UNACCEPTABLE ()
PRESSURE SWITCH RESTORED TO SERVICE []
PRESSURE SWITCH COMMITTED TO REPAIR []
TEST COMPLETED BY TIME DATE L
SHIFT ~ SUPERVISOR NOTIFIED l
Signature Time Date REVIEWED BY:
DATE APPROVED BY:
DATE
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