ML19224B128
| ML19224B128 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 06/23/1978 |
| From: | Metropolitan Edison Co |
| To: | Mullinix W NRC/IE |
| References | |
| 2203-2.6, TM-0042, TM-42, NUDOCS 7906140079 | |
| Download: ML19224B128 (2) | |
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TMI DOCUMENTS f
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METROPOLITAN EDISON COMPM1Y.
Wilda R. Mullinix, NRC 4
7906'40079 188 153
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I 2203-2.6 QE.JT,DO} } I's i" ' '!
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THREE MILE ISt.AND NUCLEAR STATION APR 2 3 nn UNIT #2 AB.1CRM.AL PROCEDURE 2203-2.6 POST ACCIDENT HYDROGEN CONTROL Tab le of Effective Pages Pace Date Revision Pace D ate R evig n_
Pace Date R evision 1.0 C6/23/78 1
26.0 51.0 2.0 27.0 52.0 3.0 28.0 53.0 4.0 29.0 54.0 5.0 30.0 55.0 6.0 31.0 56.0 7.0 32.0 57.0 8.0 33.0 58.0 9.0 34.0 59.0 10.0 35.0 60.0 11.0 36.0 61.0 12.0 37.0 62.0 13.0 38.0 63.0 14.0 39.0 64.0 15.0 40.0 65.0 16.0 41.0 66.0 17.0 42.0 67.0 18.0 43.0 08.0 19.0 44.0 69.0 20.0 45.0 70.0 21.0 46.0 71.0 22.0 47.0 72.0 23.0 48.0 73.0 24.0 49.0 74.0 25.0 50.0 75.0 Unit 1 Staff Recommends Approval Unit 2 Staff Recommenypproval
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Date Approval
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Date Approval Ccgnizant Dept. Head Cognizant Dept. Hed Unit 2 PORC Recommends Approval Unit 1 PORC Recomrrynds Approval nsl Date 4 22.W Date 4
CFai.rnin of PORC V (Hadr"nar/of PORC i
k Unit 2 Superintendent Approval Unit 1 Superintendentgpproval
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Manager Generation Quality Assurance Approval
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188 154 T MI 55-A Flev 8/7 7
22CJ-2.6 nd u-i Revision 1
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05/23/78 y[
THREE MILE ISLAND NUCLEAR STATION s/
APR 2 3 1373 UNIT #2 ABNORMAL PROCEDURE 2203-2.6 e
POST ACCIDENT HYDROSEN CONTROL 1.0 SYMPTOMS 1.1 Samples drawn and analyzed per HP and Chemistry Procedures show an increasing concentration of hydrogen gas in the Reactor Building.
2.0 IMMEDIATE ACTION 2.1 Automatic Action None 2.2 Manual Action 2.2.1 Following an accident, samples for hydrogen should be taken daily after the containment pressure reduces to normal and the activity level is reduced.
The sampling frequency may be adjusted as required after the concentration rate of increase is established.
The samples are taken per HP 1630 and analyzed per Chemistry Procedure 1958.2 and 1958.3.
2.2.2 Sampling for I-131 and Kr-85 insofar as hydrogen purging is concerned is done to determine which isotcpe, I-131 or Kr-85, controls the purge rate and the corresconding allowable I-131 or Kr-85 release rate.
3.0 FOLLOW-UP ACTION 3.1 As the hydrogen concentration increases, place the Hydrogen Recombiner into operation per ciO4-6.4.
A spare H recombiner is located in 2
the Unit 2 south warehouse and may be placed in operation per 0
2104-6.4 section 4.4.
a 3.2 If the hydrogen conctntration cannot be maintained lower than 3.5%,
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initiate purging per 2104-6.5.
188 155 m
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