ML20092C193
| ML20092C193 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 08/22/1995 |
| From: | GEORGIA POWER CO. |
| To: | |
| References | |
| OLA-3-A-154, NUDOCS 9509120291 | |
| Download: ML20092C193 (10) | |
Text
BRINEY EXH B
-/g GPC EXH. II __-/#[ProCeoute NO.
J I
Appt Jval Vogtla Electric Generating Plant 22332-C fil'Sa I- [. 4 NUCLEAR OPERAT9H}CKETED R m.on no.
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TEMPERATURE SWITCH CALIBRATION NUCLEAR REGULATORY COdMISSION M6 Docket No $2. /2/' + Y2s fd'] EXHlBfT NO. $-/5/
in the rnatter of_,4 Mw&//hae L[Apphcant 0 intervenor 'O otner
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O staff O identified Miteceived O Rejecte Reporter _ //2 4)
Date $2ZJI5 witness Ruve v 9509120291 950822 PDR ADOCK 05000424 G
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- .6 PRoCEoVRE No REVIStoN PAGE No.
VEGP 22332-C 2
2 of 10 1.0 PURPOSE The purpose of this procedure is to provide instructions for Calibration of a Temperature Switch.
2.0 PRECAUTIONS AND LIMITATIONS 2.1 All steps in this procedure are to be performed in i
sequence except as noted.
[]
I 2.2 Performance of procedure step, as identified by a double asterisk (*/*),
shall be initialed on
" Checklist" except when recording data on Data Sheet.[]
i 2.3 The instrument may be located in a radiation area, service a contaminated process fluid, or be contaminated.
If so, follow instructions on " Radiation J.
Work Permit".
()
2.4 For Safety-Related Systems, an Independent Restorati'on Verification shall be performed after completion of Test / Calibration and initialed in " Restoration l
Verification" section of " Checklist".
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]
2.5 Any calculations necessary for the performance of this procedure shall be shown on " Calculation Sheet".
[]
I 2.6 Ensure that each lead (wire) to be lifted is marked with a completed and installed jumper and lif ted wire L
tag.
Instead of " Control No.", the " Procedure No."
should be identified on the tag.
[]
1 2.7 If this procedure is completed and temporary jumper (s) must remain installed and/or lifted wire (s) cannot be i
reconnected, a Jumper and Lifted Wire Clearance must be obtained per Procedure 00306-C, " Temporary Jumper And Lifted Wire Control".
[]
2.8 Minimize entry of foreign materials or dirt into the j.
working parts of the instrument.
[]
i 2.9 If, during performance of this procedure, any of the 4
following occur, immediately notify I&C Foreman.
2.9.1 Any personnel error, procedure inadequacy, or malfunction is identified which could prevent a
fulfillment of " Acceptance Criteria".
[]
2.9.2 Any test exceeds specified limits.
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- J)44%
C=
EoCEouRE Odo-REVIStoN PAGE No.
VEGP 22332-C 2
3 of 10 2.10 This procedure may be performed in any plant operational mode.
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3.0 PREREQUISITES OR INITIAL CONDITIONS 3.1 Notify Shift Suaervisor, or designee, of work to be
- /*
performed and obtain signature authorization.
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l l
3.2 Notify Reactor Operator (RO) that instruments
- /*
associated with switch may be erratic or inoperable during performance of this procedure and obtain RO signature.
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3.3 TEST EQUIPMENT REQUIRED i
3.3.1 Temperature Bath
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3.3.2 Fluke 2175A Digital Thermemeter or equivalent
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3.3.3 Triplett Model 630 VOM or equivalent
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3.4 Verify all Prerequisities or Initial Conditions are
[]
- /*
met.
4.0 MAIN BODY 4.1 CALCULATIONS 4.1.1 Obtain instrument setpoint Data from appropriate
- /*
controlled document (s) and record document number (s) in
" Comments" section of " Data Sheet".
[]
~~-
i 4.1.2 Calculate and record input and expected values in
- /*
" Input" and " Expected" sections of " Data Sheet".
[]
4.1.3 Calculate Hi and to Limits and record in "Hi Limit" and
- /*
"Lo Limit" sections of " Data Sheet".
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4.2 REMOVAL FROM SERVICE NOTE The length of capillary immersed in temperature bath must be the same as length of j
capillary immersed in process.
l f
4.2.1 Close isolation valve (if applicable).
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k$$h k.
)
i
PROCEDURE NO.
RE VISlote PAGE No.
VECP 22332-C 2
4 of 10 l
4.2.2 Disconnect lead wires from switch as required.
[]
- /*
(Independent Verification required for safety-related systems) 4.2.3 Remove temperature sensing element from thermowell
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and/or holding apparatus as necessary.
4.3 CALIBRATION 4.3.1 Place temperature sensing element and Fluke digital
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thermometer in temperature bath.
4.3.2 Connect VOM across appropriate terminals to monitor
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contact action of switch under test.
4.3.3 Adj us t temperature bath to a point at which VOM indicates contacts are in reset condition.
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NOTE As setpoint is approached temperature bath should be adjusted in smaller increments, allowing temperature to stabilize j
after each adjustment of temperature bath and prior to obtaining data and switch conditions.
4.3.4 Adj us t temperature oath to point at which required trip
- /*
point is indicated by VOM and record temperature bath value in "As Found" section of " Data Sheet".
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4.3.5 Adj us t temperature bath to point at which required action is indicated by' VOM and record
- /*
reset contact temperature bath value in "As Found section of " Data Sheet".
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4.3.6 If required, connect VOM to additional switch contacts and repeat steps 4.3.3 thru 4.3.5.
[]
4.3.7 If As Found readings are within limits specified on
- /*
" Data Sheet" and more accurate readings are not desired, record readings in "As Left" section of " Data Sheet" and proceed to appropriate subsection.
(1 90 M4S
i-PROCEDURE No.
REVISION PAGE Mo.
VECP 22332-C 2
5 of 10 4.3.8 If As Found readings are not within limits specified on
" Data Sheet", or more accurate readings are desired, proceed as follows:
I Ensure that V0M is connected across correct switch a.
terminal.
[]
erature bath to setpoint value as b.
Adj us t temp' Data Sheet".
[]
listed on c.
Adj us t switch as required to.obtain correct contact action as indicated by VOM.
[]
j l
d.
Adjust temperature bath to point at which VOM indicates contact trip action and note temperature value.
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e.
Adjust temperature bath t.' point at which VOM indicates contact reset action and note temperature value.
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f.
Repeat steps 4.3.8b thru 4.3.8e until no further adjustments are necessary.
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g.
Reco.d final values obtained in "As Left" section
- /*
of " Data Sheet".
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4.3.9 If temperature switch has more than one contact, repeat steps 4.3.8a thru 4.3.8g if appropriate until all contacts have been calibrated.
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4.4 RESTORE TO SERVICE 4.4.1 Disconnect all test equipment used in performance of
- /*
this procedure.
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4.4.2 Reinstall temperature sensing element in thermowell
- /*
and/or holding apparatus as required.
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4.4.3 Reconnect switch leads as required.
[]
- /*
4.4.4 Open isolation valve (if applicable).
[]
- /*
4.4.5 Verify instrument reflects current plant conditions
- /*
after it is returned to service.
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?
ti,644 C.
~
f I
i PROCEDURE No.
REVISION PAGE Wo.
VEGP 22332-C 2
6 of 10 l
1 4.4.6 For Safety-Related systems, have an Independent j
- /*
Restoration Verification performed by designated personnel.
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4.4.7 Notify RO that instrument has been returned to service.
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I 4.4.8 Notify Shift Supervisor, or designee, of completion of l
- /*
work including test results and obtain signature on
" Completion Sheet".
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i 5.0 ACCEPTANCE CRITERIA 5.1 The Acceptance Criteria for this procedure is that the temperature switch is within limits specified on " Data Sheet".
5.2 Satisfactory completion of this procedure has been met when I&C Foreman has evaluated data obtained per Acceptance Criteria of this procedure, reviewed, and signed " Data Sheet" provided.
6.0 REFERENCES
i 6.1 Instruction Manual for switch under test.
6.2 Procedurc 00306-C, " Temporary Jumper And Lifted Wire Control" END OF FROCEDURE TEXT i
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PROCEDURE NO.
REVISION PAGE NO.
VEGP 22332-C 2
8 of 10 l
Sheet 1 of 1 CALCULATION SHEET Show all calculations performed during course of this procedure in the space below.
Completed by:
Date:
Reviewed by:
Date:
Approved by:
Date:
J$.
m
/
t.l", '. * $ $
PROCEDURE No.
REVISloN PAGE No.
VEGP 22332-C 2
9 of 10 l
Sheet 1 of 1 CHECKLIST 3.1 Shift Supervisor Authorization
/
Signature Date 3.2 Reactor Operator (RO) Notified
/
Signature Date STEP VERIFICATION Step /Substep Initial Step /Substep Initial 3.4 Prerequisites met 4.4.4 Isolation valve open l
4.2.2 Leads disconnected 4.4.5 Reflects plant l
4.2.2 Independent conditions Verification 4.4.1 Test equipment removed 4.4.2 Element installed l
4.4.3 Leads connected RESTORATION VERIFICATION Initial Initial 1.
Element installed
- 3. Isolation valve open 2.
Leads connected t
Performed by:
Date
~~
Reviewed by:
Date
,, p.
m 1,N.
PROCEDURE NO.
REVISIOM PAGE NO.
VECP 22332-C 2
10 of 10 l
Sheet 1 of 1 I
COMPLETION SHEET PROCEDURE TITLE TEMPERATURE SWITCH CALIBRATION TIME TEST STARTED BY DATE DEFICIENCIES OCCURRED AND ACTIONS TAKEN l
l l
l TEST RESULTS:
ACCEPTABLE [ ]
UNACCEPTABLE [ ]
TEMPERATURE SWITCH RESTORED TO SERVICE [ ]
TEMPERATURE SWITCH COMMITTED TO REPAIR [ ]
TEST COHPLETED BY TIME DATE l
SHIFT SUPERVISOR NOTIFIED
/
Signature Time Date
~~
REVIEWED BY:
DATE:
)
APPROVED BY:
DATE:
mm
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