ML20023B417
| ML20023B417 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 05/04/1983 |
| From: | PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | |
| Shared Package | |
| ML20023B405 | List: |
| References | |
| NUDOCS 8305050033 | |
| Download: ML20023B417 (5) | |
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i PBAPS LIMITING CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMENTS 3.6.B Coolant Chemistry 4.6.B Coolant Chemistry
- 1. Coolant Activity Limits
- 1. During the equilibrium power operation the sampling Whenever the reactor is critical, frequencies of Table I shall the limits on activity concen-apply. Additional samples trations in the reactor coolant shall be taken whenever the shall not exceed the equili-reactor coolant concentration l
brium value of 0.2 uc/gm of exceeds ten percent of dose equival'ent *I-131.
the equilibrium value in 3.6.B.1 and one or This limit may be exceeded for more of the following condi-a maximum of 49 hours5.671296e-4 days <br />0.0136 hours <br />8.101852e-5 weeks <br />1.86445e-5 months <br />. During tions are met:
this activity transient the iodine
- a. During startup concentration shall not exceed
- b. Following a significant Iuc/gramofdoseequivalent the equilibrium values of 4.0 power change ***
- c. Following a significant I-131 whenever the reactor increase ** in the is critical. The reactor shall equilibrium offgas level not be operated under this ex-at the steam air ejector ception from the equilibrium over a 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> period.
activity limits for more than 800 hours0.00926 days <br />0.222 hours <br />0.00132 weeks <br />3.044e-4 months <br /> in any consecutive Additional samples will also 12 month period. If the iodine be obtained whenever the concentration in the coolant equilibrium iodine concen-exceeds 0.2 uc/ gram dose tration limit of 3.6.B.1 is equivalent I-131 for more than exceeded.
48 continuous hours or is greater than 4.0 uc/gm dose equivalent The additional coolant liquid I-131, the reactor shall be samples shall be taken shutdown, and the steam line at 4 hour4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> intervals for 48 isolation valves shall be closed hours, or until two successive within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
samples indicate a decreasing trend below the limiting
- That concentration I-131 which value of 0.2 ue/gm dose alone would produce the same equivalent I-131. However, thyroid dose as the quantity at least 3 consecutive and isotopic mixture actually samples shall be taken present.
in all cases.
- The following definition will apply to the term significant A gross iodine measurement l
increase in offgas level.
shall be performed on all l
a) At release rates less samples. If this measure-than or eaual to 75,000 ment exceeds 0.2 uc/gm an uc/see significant increase isotopic analysis to determine means an increase of dose equivalent I-131 shall 10,000 uc/sec from the-be performed.
previous corresponding power level steady state release rate within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.
- For the purpose of this b) At release rates greater section on sampling frequency than 75,000 uc/sec signifi-a significant power chango cant increase means an is defined as a change increase of 15% from the exceeding 15% of rated power previous corresponding in less than 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, power level steady state release rate within 1 hr.
8305050033 830504
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P PDR i
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i PBAPS TABLE I 1
Location Measurement Frequency Stack gas Gross activity Continuous Off-gas sample Isotopic analysis -
Monthly at SJAE including quantitative measurements for at least Xe-133, Xe-135, l
and Kr-89.
Steam Line Gross activity Continuous Coolant liquid a) Isotopic analysis Monthly sample including quantitative (when off-gas release measurements for rate at steam air ejector at least I-131, I-132, exceeds 75,000 uc/sec)
I-133, and I-135 b) Quantitative measure-Weekly ments for I-131, I-132, I-133, & I-135 l
l 145a
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PBAPS LIMITING CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMENTS 3.6.B Coolant Chemistry 4.6.B Coolant Chemistry 2.
The following limits shall be 2.
A sample of reactor coolant observed for reactor water be analyzed:
quality prior to any startup and when operating at rated a)
At least every 4 days at steaming pressures rates above 100,000 pounds per j
hour for conductivity and a)
Conductivity 5.0 unho/cm chloride ion content.
e at 25 0 C b)
Chloride concen-0.2 ppm b)
'At least every day during startups tration and at steaming rates below 100,000 pounds per hour for conductivity and chloride ion content.
3.
Reactor water cuality may ex-c)
At least every 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> during ceed the limits of Specifica-startups and at steaming tion 3.6.B.2 only for the rates below 100,000 pounds time limits specified below.
per hour for chloride ion If these time limits or the content if the conductivity maximum quality limits specified is above 0.5 unho/cm or if it are exceeded, the unit shall be increases at a rate of 0.2 placed in Hot Shutdown within umho/cm/hr or more.
12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in Cold Shutdown within 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />, unless a safety d)
At least once every week for analysis, approved by PORC and total iodine concentration when OESR Committee, has confirmed the air ejector offgas monitor that the higher impurity levels indicates that the stack release will not damage primary system rate would be in excess of materials.
100,000 uci/sec assuming a 30 min. holdup.
c)
Conductivity at 25 C
Time above 2 weeks / year 5 umho/cm Maximum limit 10 umhos/cm e
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l PBAPS LIMITING CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMENTS 3.6.B Coolant chemistry (Cont'd) 4.6.B Coolant Chemistry (Cont'd) b)
Chloride Concentration Time above 2 weeks / year O.2 ppm Maximum limit 1.0 ppm c) pH During operations, if the conductivity exceeds 1.0 umho/cm, pH shall be measured and brought within the 5.6 to 8.6 range within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. If the pH cannot be corrected, or if the pH is outside a range of 4 to 10, the unit shall be placed in Hot Shutdown within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in Cold Shutdown within 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />.
C.
Coolant Leakage C.
Coolant Leakage 1.
Any time irradiated fuel is 1.
Reactor coolant system leakage in the reactor vessel and reactor shall be checked by the sump coolant temperature is above pump and air sampling system 212 degrees Fc the rate of and recorded every 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> reactor coolant leakage to the or less.
primary containment from unidenti-fied sources shall not exceed 5 gallons per minute.
The rate change of unidentified leakage shall not exceed 2 gallons per i
minute per 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> surveillance period.
In addition, the total reactor coolant system leakage into the primary containment shall not exceed 25 gpm averaged over any 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period.
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- 'i1 PBAPS LIMITING CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMENTS 2.
Both the sump and air sampling systems shall be operable during reactor power operation. From and after the date that one of these systems is made or found to be inoperable for any reason, reactor power operation is permissible only during the succeeding seven days unless the system is made operable sooner.
3.
If the conditions in 1 or 2 cannot be met, an orderly shutdown shall be initiated and the reactor shall be in Cold Shutdown Condition within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
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