ML18051B554

From kanterella
Revision as of 10:04, 14 December 2018 by StriderTol (talk | contribs) (Created page by program invented by StriderTol)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
Steam Generator Eddy Current Insp Plan for 1985/86.
ML18051B554
Person / Time
Site: Palisades Entergy icon.png
Issue date: 09/27/1985
From:
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
Shared Package
ML18051B553 List:
References
PROC-850927, NUDOCS 8510010370
Download: ML18051B554 (7)


Text

.. ATTACHMENT Consumers Power Company Palisades Plant Docket 50-255 1985/86 STEAM GENERATOR EDDY CURRENT INSPECTION PLAN September 27, 1985 8510010370 PDR 0 -PDR" * .. _,_G. -,_. __ *,,._"_-, .. . 6 Pages IC0985-0293-NL04 Scope A.

  • Flaws > 30% in Either of Previo'ii"s Two Inspections B. 3% Percent Random Sample C. Tube/Sleeve Assemblies D. Profilometry E. Supplemental Samples* CPCO PALISADES NUCLEAR PLANT 1.985/86 S/G ET INSPECTION PLAN Required by Present Tech. Specs. Yes Yes Yes No Negotiable with NRC Required by Proposed Tech. Specs. Yes Yes No (Every 3rd Inspection)

No 3%, 6%, Additional Negotiable

  • Supplemental samples would utilize the examination method(s) which detected the increase in flaw size or population.

MI0885-0575A-TC01 PALISADES 1985/86 STEAM GENERATOR INSPECTION ET EXAMINATION DESCRIPTION A22roximate Number of Tubes to be Examined Appropriate Eddy Current Primary Generator "A" Generator "B" Duration Examination Test Type Purpose Information Hot Cold Hot Cold (Hours) 540 SFW Differential Flaws > 30% in either Wastage 900 100 700 100 120 Coil of past two inspections Pitting e* Multi frequency (Randon sample -2% HL, Hultiparameter l'> CL) 4C4F Differential Tube exams for 30-100% IGA 800 200 900 150 Hulticoil both with and without Circ. Cracking Multi frequency denting Hultiparameter (Random sample -2% HL, 1% CL) Dent Region* Absolute Pancake For uninterpretable Wastage (Est 50)* (Est 50)* 64 Rotational Coil (Rotational) flaws due to denting which were > 45% in the previous inspection Sleeved Tube Axial Differential Examination of tube/ Tube/Sleeve 13 0 20 0 48 (Rotational)

Coil (Rotational) sleeve assemblies Degradation e Examination of tube/ Tube/Sleeve Tube/Sleeve Differential 13 0 20 0 (Included in (Slow Pull) Coil sleeve assembly Degradation 48 Hours) Profilometry Eddy Current Examination of dent Dent Profiles 309 104 244 106 24 Proximity Method profiles and Deformation

  • The number of flaws > 45% which require dent region rotational examination will not be known until the 540 SFW and 4C4F examinations are complete.

MI0885-0575A-TC01 Test/Condition A. 540 SFW B. 4C4F c. Cracking D. Multiple Indication E. Tube/Sleeve Assemblies F.

  • Blocked Tubes G. Uninterpretable and > 45% Last Inspection MI0885-0575A-TC01 PALISADES STEAM GENERATOR REPAIR CRITERIA Criteria for Repair > 58% Degradation

> 50% Degradation Upon Detection

> 29% Per Tech. Specs. .540" Probe Will Not Pass Uninterpretable and > 45% Last Inspection Present Tech. Specs. Yes No No Yes Yes Yes Yes Proposed Tech. Specs. Yes Yes Yes Yes Yei:; . Yes Yes

l. STEAM GENERAXO.R SUPPORT LOCATIONS Palisades Steam Generators Tube Sheet a Supports 3743.10. 3. I. L 32
  • r** .. *r**1 .. -*

.........

.. -*-*------*-** --* .. ... . . *-** *-**-* ------.. *-. ----*----*-*"'

---.. *--*--*------

-* ----... "" *1 . .. . I 1 , t t

... i1 ___ _ , *r i; N P,t'l'j<Oi\ l"ONC:> -l'f I ----------

-.I 1--.J--l'--------------

-*-I ' --------------

          • ---------

--.. * .. -* ....... *--.... .. --. _, ....... .

EVALUATION OF 4C4 FLEX PROSE Me::hanical

1. General Overview of Design I ..__ ____ . I I I . I , I ' l i.\" "", ",,
  • F}l.-. -. ,--., , ,

"'i,r.-. -:.rr tp;;;-a;;::,=r-1 11 * . ,-.....1*>"\\\, \ \ ,, \ ,\\'.,\\\\\\\\\\\l.J:..J

  • . J. *I

'* . I I* .1 . t .. i 1.oci.=---.4 * . 1.75"---., ... . .. OIJ.. ** cSS NOTE; COfL SE.TS t15° FROIY\ EACH OTt-t E.R