View source for B13221, Proposed Tech Specs Re Inservice Insp of Steam Generator Tubes & Acceptance Criteria for Tubes

{{Adams
| number = ML20245L249
| issue date = 06/29/1989
| title = Proposed Tech Specs Re Inservice Insp of Steam Generator Tubes & Acceptance Criteria for Tubes
| author name = 
| author affiliation = CONNECTICUT YANKEE ATOMIC POWER CO., NORTHEAST NUCLEAR ENERGY CO.
| addressee name = 
| addressee affiliation = 
| docket = 05000000, 05000213, 05000423
| license number = 
| contact person = 
| document report number = B13221, NUDOCS 8907050422
| package number = ML20245L245
| document type = TECHNICAL SPECIFICATIONS, TECHNICAL SPECIFICATIONS &amp; TEST REPORTS
| page count = 3
}}

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g)-  Unserviceable describes the condition of a tube if it leaks or contains a defect large enough to affect its structural integrity in the event of an ' 0perating Basis earthquake, a loss-of-coolant accident, or a steam line or feedwater line break as specified in Specification 4.10.1.C.3.
h)   Tube Inspection means an inspection of the steam generator tube from the point of entry (hot -leg side) completely around the U-bend to the top support of the cold leg; or an inspection from the point of entry (Hot Leg or Cold Leg Side) completely around the U-bend to the opposite tube end.
: 2. The Steam Generator may be returned.to service after completing the corresponding actions (plug or sleeve
* all tubes exceeding the plugging' limit and plug all defective sleeves) required by Table 4.10.I-2.
E. Following each inservice inspection of steam generator tubes, the number of tubes plugged or sleeved in each steam generator shall be reported in accordance with specification 6.9.
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                                                          -Y e907050422 e90629 3 DR     ADOCK 0500
* Tube sleeving shall be performed in accordance with the Connecticut       ,
Yankee Steam Generator Sleeving Report, Revision 1, transmitted by letter '
dated January 7, 1986.
                                     .                                   4-21d

Docket Nos. 50-423 B13111 Attachment II Millstone Unit No. 3 Proposed Revision to Technical Specifications l
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i June 1989 l
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1                               s REACTOR COOLANT SYSTEM STEAM GENERATOR SURVEILLANCE RE0VIREMENTS (Continued) 4.4.5.4   Acceptance Criteria
: a. As used in this specification:
: 1)     Imperfection means an exception to the dimensions, finish, or contour of a tube from that required by fabrication drawings or specifications. Eddy-current testing indications below 20% of the nominal tube wall thickness, if detectable, may be considered as imperfections;
: 2)     Degradation means a service-induced cracking, wastage, wear, or general corrosion occurring on either inside or outside of a tube;
: 3)     Dearaded Tube means a tube containing imperfections greater than or equal to 20% of the nominal wall thickness caused by degradation;
: 4)     % Degradation means the percentage of the tube wall thickness affected or removed by degradation;
: 5)     Defect means an imperfection of such severity that it exceeds the plugging limit. A tube containing a defect is defective;
: 6)     Pluaaina limit means the imperfection depth at or beyond which the tube shall be removed. from service and is equal to 40%
of the nominal tube wall thickness;
: 7)     Unserviceable describes the condition of a tube if it leaks or contains a defect large enough to affect its structural integ-rity in the event of an Operating Basis Earthquake, a loss-of-coolant accident, or a steam line or feedwater line break as specified in Specification 4.4.5.3c., above;
: 8)     Tube Inspection means an inspection of the steam generator tube from the point of entry (hot leg side) completely around the U-bend to the top support of the cold leg; or an inspection from the point of entry (Hot Leg or Cold Leg Side) completely around the U-bend to the opposite tube end.
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