ML20237C384
| ML20237C384 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 12/31/1984 |
| From: | PORTLAND GENERAL ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML20237C374 | List: |
| References | |
| PGE-1015-84, PGE-1015-84-A-01, PGE-1015-84-A-1, NUDOCS 8712210292 | |
| Download: ML20237C384 (14) | |
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ANNUAL OPERATING REPORT'FOR THE TROJAN NUCLEAR PLANT i
PGE-1015-84 i
l i
The following information is furnished as a guide _for the insertion of' new sheets for Amendment 1 into the Annual Operating Report for the Trojan Nuclear Plant. This material is denoted by use of the revis!on number and date in the lower outside corner of the,page, y
i New sheets should be inserted as listed below:-
/
Discard Old Sheet Insert Ngw Sheet p.N
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s 4
2-140/-
2-140/2-140a
/
2-140b/2-140c
? lt 2-104d/2-140e 2-140f/2-140s I
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L 2.F STEAM GENERATOR TU3E INSPECTIONS ft m
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s: J iouirement 1-
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Trojan Facility Ope,ptits Licenas MF-1. Appendix A. Technica j
s' Specification 6.9.1'd states:
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Reports required on an annual basis % hall include:
i The courplete results of steam generator tube inservice \\
b.
inspection performed during the report period (reference Sputification 4.4.5.5.b).
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Technical Specif Untiog 4.4. D.b requires 1
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The complete results of the nteam genertf or tube inservice g,..
',s n) inspection shaV be reported on an ennual basis for the period i
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w'.tich the iAsr'acthn was comF eted. Thia report shall include:
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in, Nthp? 'and extent of tubes inspected.
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Location and pere.est of wall-thickness penetratio for ear'n y.dication if kn ' imperfection.
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Itet ification of tubes plugged.
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The June 1984 steam generator inspec*. ion program :;nsisted of j
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MIZ-12/SM-4 au$ti-frequency eddy current. examination as folicid:
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T Examina[tiontfthe-fulllengthofallactivetubinginSteam
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l Generatde{},:B,C, pad D.
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Examination of approximately 3 percent of the hc,t and cold leg tubes throughLLhe tap (seventh) svpport for detydtlon of circumferential f1this.
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Results
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Tah'n 1.1 prpyldess the nun:ber and extent of tha tubes ins:pected
,in eM h steam sene m or.
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f'A, Yetlel'.2providktNielocationandpercentofwall-thickness s
penetration fcr each indication of an imperfection.
3.
Lph 1.3 is a list of tubes plugged and the basis for plugging as a result of the June 1984 steam generator inspection program.
The attached figures show the plugging patterns in each steam generator at the conclusion of the June 1984 outage.
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Amendment 1 (December 1987) y 1
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Classification O
The Inservice Inspection classification, f or the Trojan Nuclear Plant steam generators remains in Cates:try C-1, as noted in Paragraph 4.4.5.2 ut' the Technica!. Specifications.
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2-140a Amendment 1 (December 1987)
I TABLE 1.1
.]
1
SUMMARY
OF EXAMINATION SCOPE JUNE 1984 Steam Number of Extent Generator Program Tubes Tested Tested
- A 1
2,535 FL:H 1
22 FL:C 1
457 7C:H/7C:C
.1 280 7H:C/7H:H 2
148 7H:H 2
71 7C:C B
1 2,619' FL:H 1
20 FL:C 1
465 7C:H/7C:C 1
190 7H:C/7H:H 2
148 7H:H l
2 71 7C:C j
l C
1 2,560 FL:H 1
23 FL:C 1
470 7C:H/7C:C 1
241 7H:C/7H:H 2
70 7H:H
- O D
1 1,529 FL:H j
1 1,036 FL:C j
1 464 7C:H/7C:C
]
1 236 7H:C/7H:H j
2 72 7H:H 2
73 7C:C TOTAL TESTED = 13,800 NOTE: Program 1 = Full length
.I Program 2 = Random pattern (3 percent)
- FL:H = Entry from hot les side, probe inserted for full length of tube.
FL:C = Entry from cold leg side, probe inserted for full length of tube.
7H:H = Entry from hot leg side, probe inserted to seventh support on hot leg side of U-bend.
]
l 7C:C = Entry from cold leg side, probe inserted to seventh support on l
cold les side of U-bend.
l 7H:C = Entry from cold leg side, probe inserted to seventh support on
.f-hot leg side of U-bend.
7C:H = Entry from hot leg side, probe inserted to seventh support on cold leg side of U-bend.
2-140b Amendment 1 (December 1987)
TABLE 1.2
SUMMARY
OF EXAMINATION RESULTS
' JUNE 1984 Steam Generator A
B C
D Tubes Tested 3513 3513 3364 3410 Ouantifiable Indications:
Hot: Cold Hot: Cold Hot: Cold Hot: Cold 1.
Tubes Exceeding Plugging 0: 0 0: 0 2: 1 0: O Limit >= 40 percent 2.
Degraded Tubes >= 20 per-1: 0 0: 0 1: 0 1: 1 cent < 40 percent 3.
Imperfections < 20 percent 3: 4 10 : 6 8: 4 5: 6 4.
Row 2 U-bend 0: 0 1: 0 0: 0 0: O l
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2-140c Amendment 1 (December 1987)
I TABLE 1.3 i
TUBE PLUGGING LIST JUNE 1984 Steam Generator Tube Number Basis A
R44/C34-
>= 20 percent <40 percent indication at hot leg tube sheet B
R2/C29' U-bend indication C
R12/C60
>40 percent indication at hot leg tube sheet R13/C61
>40 percent indication at hot les tube sheet R13/C62
>40 percent indication at hot les tube sheet R37/C20
>40 percent indication at cold les mid-span D
R22/C34
>= 20 percent <40 percent indication at hot les mid-span l
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