ML12194A136

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SONGS, Steam Generator Tube, Unit 2, Wear Data 7-12-12
ML12194A136
Person / Time
Site: San Onofre Southern California Edison icon.png
Issue date: 07/12/2012
From:
NRC Region 4
To:
References
Download: ML12194A136 (1)


Text

SONGS Unit 2 Steam Generators Wear Depths Summary Steam Generator Tubes with Anti-Vibration Tube Support Tube-to- Retainer Foreign Total Indications SG2E88 (Through-Bar Plate Tube Wear Bar Object Indications (out of 9727 Wall Wear) total per SG) 50% 0 0 0 1 0 1 1 35 - 49% 2 0 0 1 0 3 3 20 - 34% 86 0 0 0 2 86 74 10 - 19% 705 108 0 0 0 813 406

< 10% 964 117 0 0 0 1081 600 TOTAL 1757 225 0 2 2 1984 734*

  • This value is the number of tubes with wear indications of any depth and at any location. Since many tubes have indications in more than one depth and location, the total number of tubes is less than the total number of indications.

Steam Generator Tubes with Anti-Vibration Tube Support Tube-to- Retainer Foreign Total Indications SG2E89 (Through-Bar Plate Tube Wear Bar Object Indications (out of 9727 Wall Wear) total per SG) 50% 0 0 0 1 0 1 1 35 - 49% 0 0 0 1 0 1 1 20 - 34% 78 1 0 3 0 82 67 10 - 19% 1014 85 2 0 0 1101 496

< 10% 1499 53 0 0 0 1552 768 TOTAL 2591 139 2 5 0 2737 861*

  • This value is the number of tubes with wear indications of any depth and at any location. Since many tubes have indications in more than one depth and location, the total number of tubes is less than the total number of indiations.