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<p class="MsoNormal"><span style="color:#1F497D">Salem has not had to use EDM for the nozzles, but we have used EDM many times over for repair of baffle-former bolts, Thermal shield support block bolts, and flexure replacement.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I am happy to help in any way I can. I don’t know if it would be easier to call or zoom or if you would just like some documents emailed.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">One of the biggest things is that EDM creates “swarf”. The fine metal chips/shavings/debris can get EVERYWHERE. We always use instacote but it seems to be extra useful following the EDM outages. We have seen
much hotter RCS filters following EDM heavy outages as some of that debris is still clearing the system after start up.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Let me know how else I can help – I will work on pulling some of our documents from EDM heavy outages<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:12.0pt;font-family:"Lucida Handwriting";color:gray">Jen Tutterow</span></b><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Radiological Engineer – Salem ALARA</span><span style="font-size:12.0pt;font-family:Wingdings;color:#FF6600"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt;font-family:Wingdings;color:#FF6600">R</span><span style="font-size:12.0pt;font-family:"Rockwell",serif;color:#FF6600">
</span><b><span style="font-size:12.0pt;font-family:"Georgia",serif;color:#1F497D">PSEG
</span></b><b><i><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#FF6600">Nuclear LLC</span></i></b><span style="font-size:12.0pt;font-family:"Courier New";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black"><a href="mailto:Jennifer.Tutterow@pseg.com"><span style="font-family:"Times New Roman",serif;color:blue">Jennifer.Tutterow@pseg.com</span></a><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">856-339-1575</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Global <global-bounces@list.rpalara.org> <b>On Behalf Of
</b>Branham, Christy Munn<br>
<b>Sent:</b> Wednesday, December 7, 2022 12:01 PM<br>
<b>To:</b> global@list.rpalara.org<br>
<b>Cc:</b> Gainey, Taylor Price <Taylor.Gainey@duke-energy.com>; Dunton, Carrie T <Carrie.Dunton@duke-energy.com><br>
<b>Subject:</b> [EXTERNAL] [Global] Emergent Information Request - Core Barrel EDM Tool<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:red">***CAUTION***</span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:red">***CAUTION***</span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:red">***CAUTION***</span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">This e-mail is from an
<b>EXTERNAL </b>address. The actual sender is (<a href="mailto:global-bounces@list.rpalara.org">global-bounces@list.rpalara.org</a>) which may be different from the display address in the From: field. Be cautious of clicking on links or opening attachments.
Suspicious? Report it via the Report Phishing button. On mobile phones, forward message to Cyber Security.<o:p></o:p></span></p>
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<p class="MsoNormal">All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I work at Robinson Nuclear Plant, we are currently in a refueling outage working through a Level 1 Emergent Issue. While performing 10 year ISI UT inspections on the core barrel, an indication has been identified on the core barrel in the
area just below the hot leg outlet nozzle. This indication will likely require an EDM (Electric Discharge Machining) method to be used to remove the metal at the tips of the flaw to prevent it from growing further.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m interested in obtaining any available information in the industry on this activity or using the EDM tool. Any site that has dealt with a similar issue, please provide me with an RP contact, ALARA plan, RWP, and cavity decon plan after
completion. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you all in advance for sending any information you can provide.
<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Thank you,<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Lucida Calligraphy"">Christy M. Branham<o:p></o:p></span></p>
<p class="MsoNormal"><b>RP Superintendent </b><o:p></o:p></p>
<p class="MsoNormal">Robinson Nuclear Plant- Duke Energy<o:p></o:p></p>
<p class="MsoNormal">843.951.3150 (w)<o:p></o:p></p>
<p class="MsoNormal">843.601.7452 (c) <o:p></o:p></p>
<p class="MsoNormal"><a href="mailto:Christy.Branham@duke-energy.com"><span style="color:blue">Christy.Branham@duke-energy.com</span></a><o:p></o:p></p>
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