ML20080P485
| ML20080P485 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 11/17/1982 |
| From: | Dickey C, Painter R, Tuckman M DUKE POWER CO. |
| To: | |
| Shared Package | |
| ML20080P419 | List:
|
| References | |
| CP-O-B-8150-02, CP-O-B-8150-2, NUDOCS 8402220560 | |
| Download: ML20080P485 (9) | |
Text
,
Form 34731 (10-81)
(Formerly SPD.1002-1)
DUKE POWER COMPANY (1)
ID No: CP/0/B/8150/02 PROCEDURE PREPARATION Change (s)
D to PROCESS RECORD 0 Incorporated 1
(2) STATION:
Catawba (3) PROCEDURE TITLE: Chemistry Procedure for the Determination of Conductivity, Auto-Analyzer (4) PREPARED BY:
k a ver; n i j.
k;o4 ; DATE:
n - R - F.2.
(5) REVIEWED BY: [
A DATE: # - P-f"2.-
Cross-Disciplinary Review By:
N/R:/th6 (6) TEMPORARY APPROVAL (IF NECESSARY):
By:
_ (SRO) Date:
By:
Date:
(7) APPROVED BY: i e
W Late:
i Ol \\
l l
(8) MISCELI.ANEOUS:
Reviewed / Approved By:
Date:
l Reviewed / Approved By:
Date:
l 1
l a
4 M/?] g 8402220560 840215 PDR ADOCK 05000413 E
l Form 34634 (4-81)
SPD 10012 DUKE POWER COMPANY NUCLEAR SAFETY EVALUATION CHECK LIST
)
Catawba X
X (1) STATION:
UNIT: 1 2
3 OTHER:
(2) CHECK LIST APPLICABLE TO:
CP/0/B/8150/02 (3) SAFETY EVALUATION - PART A The item to which this evaluation is applicable represents:
Yes ho A change to the station or procedures as described in the FSA' or a test or experiment not described in the FSAR?
If the answer to the above is "Yes", attach a detailed description of the item being evaluated and an identification of the affected section(s) of the FSAR.
(4) SAFETY EVALUATION - PART B
[ Will this item require a change to the station Technical Yes No Specifications?
If the answer to the above is "Yes," identify the specification (s) affected and/or attach the appli, cable pages(s) with the change (s) indicated.
(5) SAFETY EVALUATION - PART C As a result of the item to which this evaluation is applicable:
/ Will the probability of an accident previously evaluated Yes No in the FSAR be increased?
i Yes No
/ Will the consequences of an accident previously evaluated in the FSAR be increased?
Yes No
/ May the possibility of an accident which is different than any already evaluated f. the FSAR be created?
l Yes No
/ Will the probability of a malfunction of equipment l
important to safety previously evaluated in the FSAR I
be increased?
/ Will the consequences of a malfunction of eqttipment l
Yes No important to safety previously evaluated in the FSAR
,be increased?
Yes No
/ May the possibility of malfunction of equipment important to safety different than any already evaluated
. in the FSAR be created?
f Yes No Will the margin of safety as defined in the bases to any Technical Specification be reduced?
If the answer to any of the preceding is "Yes", an unreviewed safety question is involved. Justify the conclusion that an unreviewed safety question is or is not involved. Attach additional pages as neressary.
(6) PREPA3ED BY: 6 voYJL
- 5. hmb DATE:
//'M.A.-
(7) REVIEWED BY:
IC DATE- / /- J' 1
(8) Page 1 of I
Fom 18855 (3-80)
^
DUKE POWER COMPANY ALARA EVALUATION CHECKLIST (1) Station Catawba Unit:
1 X 2
X 3
Other:
(2) Checklist Applicable to:
CP/0/B/8150/02 (3) ALARA Evaluation Check those items below which were considered applicable during the preparation and review of this document.
Flushing and draining were used to minimize source - strength and con-tamination levels prior to performing an operation.
J Permanent and/or movable shielding was specified for reduction of levels.
Use of permanent or temperary local exhaust ventilation systems was used for control of airbarne contamination.
Operation was designed to be completed with the least practicable time spent in the radiation field.
Appropriate tools and equipment were specified for the operation to be performed.
The operation was designed considering the minimum number of people necessary for safe jcb completion.
Remote handling equipment and'other special tools were specified to reduce external dose.
Contamination - control techniques were specified.
The operation was designed to be conducted in areas of as low an exposure as practicable.
Additional ALARA considerations were:
i
[
ALARA Principles were not considered since the procedure did not involve work in a radiation area.
(5) Prepared by: On';:/Jffn> 8. b/Oktu Date //-f%
- (6). Reviewed by:
/
Date ' '- ?-I'1 A.
J CP/0/B/8150/02 DUKE POWER COMPANY CATAWBA NUCLEAR STATION CHEMISTRY PROCEDURE FOR THE DETERMINATION OF CONDUCTIVITY, AUTO-ANALYZER 1.0 DISCUSSION 1.1 Scope This procedure describes the Wheatstone Bridge method for the deter-mination of specific conductance and cacion conductivity in secondary systems, using continuous flow analyzers.
i 1.2 Principle Refer to Procedure CP/0/B/8100/02, CHEMISTRY PROCEDURE FOR THE DETERMINATION OF SPECIFIC CONDUCTIVITY.
1.3 Precision and Interferences i
The electrode surfaces of the cell must be kept clean to ensure accarate readings.
The conductivity of a solution will increase 2.5% for each *C rise in temperature. This is not 4 factor, however, if the probe is temperature compensated.
4 1.4 Limits and Precautions Any unusual behavior of the conductivity recorder, unattributable to known variations in the system, is an indication that the cell requires inspection and/or cleaning.
I 2.0 APPARA1TJS I
l 2.1 5 Leeds & Northrup Speedomax Recorders 2.2 22 Leeds & Northrup Conductivity Cells, 4905-001-33-093-7 2.3 4 Leeds & Northaup Conductivity Cells, 4905-01-33-088-7 2.4 Color indicating cation resin, hydrogen form 2.5 2 Plastic Buckets I
2.6 Mixer 2.7 Backwash Header (Enclosure 6.1) 2.8 Flow Cell (Enclosure 6.2)
CP/0/B/8150/02 Peg 2 2 of 4 3.0 REAGENTS 3.1 Acid Solution for the Regeneration of Resin, 23*. V/V.
In a 1000 ml poly bottle slowly add 250 t 5 ml of concentrated sulfuric acid (H S0 ) to 500 5 ml of domineralized water.
2 g 4.0 PROCEDURE 4.1 Instrument Calibration 4.1.1 The recorder will be calibrated annually by I&E.
4.2 Start Up 4.2.1 Fill all cation columns with color indicating cation resin as described in Section 4.4.3 - 4.4.8.
4.2.2 Initiate sample flow by opening the following valves:
Unit 1 Unit 2 Polish Domin. Main Influent Sample Isol.
1CT81 2CT81 Vassel "A" Sample Isol.
1CT85 2CT85 Vessel "B" Sample Isol.
ICT89 2CT89 Vessel "C" Sample Isol.
1CT93 2CT93 Vessel "D" Sample Isol.
ICT97 2CT97 Vessel "E" Sample Isol.
1CT101 2CT101 Polish Demin. Main Effluent Sample Isol.
ICT77 2CT77 S/G "1A" Cation Column Inlet Isol.
ICT46 2CT46 S/G "1B" Cation Column Inlet.Isol.
1CT50 2CT50 S/G "1C" Cation Column Inlet Isol.
ICT54 2CT54 S/G "1D" Cation Column Inlet Isol'.
ICT58 2CT58 Final Feedwater Cation & Spec. Cond.
ICT68 2CT68 Inlet Isol.
i Hotwell Pump Discharge Conduc.tivity ICT62 2CT62 j
Inlet Isol.
l 4.2.3 Upon introduction of sample flow into cation columns, t
complete cation conductivity startup per Section 4.4.9 - 4.4.11.
4.3 Call Constant Determination NOTE:.To be determined monthly.
4.3.1 Place the probe of the Balsbaugh Series 910 Conductivity Monitor' into the flow cell (Section 2.10).
The cell constant is to be 0.01 and recently calibrated via l
Precedure CP/0/B/81CG/02, CHEMISTRY PROCEDURE FOR THE l
DET".RMINATION OF SPECIFIC CONDUCTIVITY.
[
4.3.2 Place the inlet tubing of the flow cell on the discharge i
of the conductivity cell.
4.3.3.
Flush the cell for three minutes.
l l
CP/0/B/8150/02 s
Pags 3 of 4 4.3.4 If the recorder reading is not within 10*. of the Balsbaugh reading for cation and specific conductivity, a Chemistry Supervisor is to be notified.
4.4 Removal and Recharging of Cation Column NOTE: Notify Operations of possible alarms due to removal of a cation column from service.
4.4.1 Close the appropriate valve:
Unit 1 Unit 2 Polish Domin. Main Influent Sample Isol.
ICT81 2CT81 Vessel "A" Sanple Isol.
ICT85 2CT85 Vessel "B" Sample Isol.
1CT89 2CT89 Vessel "C" Sample Isol.
ICT93 2CT93 Vessel "D" Sample Isol.
ICT97 2CT97 Vessel "E" Sample Isol.
1CT101 2CT101 Polish Demin. Main Effluent Sample Isol.
ICT77 2CT77 S/G "A" Cation Column Inlet Isol.
1CT46 2CT46 S/G "B" Cation Column Inlet Isol.
1CT50 2CT50 S/G "C" Cation Column Inlet Isol.
ICT54 2CT54 S/G "D" Cation Column Inlet Isol.
1CT58 2CT58 Final Feedwater Cation & Spec. Cond.
ICT68 2CT68 Inlet Isol.
Hotwell Pump Discharge Conductivity Inlet ICT62 2CT62 Isol.
4.4.2 Isolate flow from the cation column by closing the effluent valire and the drain valve.
4.4.3 Disconnect column outlet tubing from column outlet valve.
4.4.4 Remove the wizig nuts and clamp ring holding the column.
4.4.5 Turn the column counter-clockwise by hand to remove the column from the upper plug and screen.
4.4.6 Empty the column of spent resin and store in domineralized water until a sufficient amount of resin is obtained for regeneration (Section 4.5.2).
4.4.7
.Refilk the column with new or regenerated well rinsed cation resin mixed in domineralized water, or fill the column 3/4 full with domineralized water before adding the resin.
4.4.8 Replace the column on the panel and clamp. Take care to realign the outlet valve and tubing properly to prevent cross-threading the fitting.
4.4.9 Open the staple isolation valve slightly to fill the l
column.
Intermittently open and close the purge valve at the top of the column to relieve back pressure.
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~.-
CP/0/B/8150/02 s
Paga 4 of 4 4.4.10 When the water level reaches the filter screen, close the purge valve and open the column outlet valve.
4.4.11 Adjust the sample isolation valve to attain a flow of 100 cc/ min. through the flowmeter, or use the flowmeter valve on the Leeds and Northrup panel.
4.5 Regeneration of Resin 4.5.1 Place the backwash htader (Section 2.9) into a plastic bucket and connect to a domineralized water source.
l' 4.5.2 Pour 5 - 7 charges of exhausted resin into the plastic bucket.
4.5.3 Open the domineralized water supply and slowly backwash the resin for 30 minutes.
NOTE:
The rate should be sufficient to expand the bed but not to cause overflow of the resin.
4.5.4 Close the domineralized water supply and decant the supernate to approximately one half inch above the resin bed.
4.5.5 Position the mixer in the bucket and initate mixing.
4.5.6 Slowly add 750 ml of the acid solution (Section 3.1) into the bucket and mix for approximate]y one hour.
4.5.7 Disengage mixer and remove from the bucket.
4.5.8 Open the domineralized water supply and backwash the resin until the conductivity of the overflow water is below 0.5 pmhos. Caution is to be taken not'to overflow resin bed.
I l
4.5.9 Maintain at least one inch of domineralized water above resin bed during storage.
5.0 REFERENCES
5.1 Leeds & Northrup. Directions, 9405 Series Conductivity Cells, 177667 Issue 4.
Leeds & Northrup.
North Wales, PA.
5.2 McGuire Nuclear Station Chemistry Procedure CP/0/B/8100/08.
6.0 ENCLOSURES I'
6.1 Backwash Header 6.2 Flow Cell l
s ENCLOSURE 6.1 CP/0/B/8150/02 BACKWASH HEADER IV Tubing From Water Supply I
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3-Way Nalgene Connector o
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Tygon Tubing l
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ENCLOSURE 6.2 CP/0/B/8150/02 FLOW CELL f
3 Tube from Effluent of Cell Being Tested h
2 Balsbaugh 910 Conductivity Probe i
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Erlenmeyer Flask
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