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We had a meeting last Tuesday with Rick Adrover, Chris Cuevas and Jack Segal about the Fischer 27 pin connector.</div>
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Rick Adrover contacted Fischer and got clarification about the HV ratings. Rick is comfortable with using</div>
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these connectors for their intended purpose. Rick has setup a database for non-NRTL equipment such</div>
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as these patch panels, so we will need to put the new patch panels in the database. I can work with Albert</div>
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to put the old patch panels and the new patch panels in this database.</div>
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I would like to thank Mindy for raising this issue about the connectors. It was important to get this clarification</div>
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and determination of the applicability of the Fischer 27 pin and plastic connectors for the intended HV usage.</div>
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Cheers,</div>
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Mark</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Rick Adrover <adrover@jlab.org><br>
<b>Sent:</b> Friday, March 3, 2023 8:48 AM<br>
<b>To:</b> Mark Jones <jones@jlab.org>; Marc Mcmullen <mcmullen@jlab.org>; Chad Bailey <cbailey@jlab.org>; Amrit Yegneswaran <yeg@jlab.org>; Bogdan Wojtsekhowski <bogdanw@jlab.org>; Brian Eng <beng@jlab.org>; Mindy Leffel <leffel@jlab.org><br>
<b>Cc:</b> mayilyan@jlab.org <mayilyan@jlab.org>; Bonnie Rodriguez <bonnie@jlab.org>; Phillip Stanley <pstanley@jlab.org><br>
<b>Subject:</b> Re: GEp HV patch panels</font>
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<span class="x_elementToProof x_ContentPasted0" style="font-size:12pt; background-color:rgb(255,255,255)">Mark,</span>
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<span class="x_elementToProof x_ContentPasted0" style="font-size:12pt; background-color:rgb(255,255,255)">I spoke to Chris about the patch panels. He concurs that some of the parts used are not rated for this application.
</span>Specifically, this connector: <span class="x_ContentPasted1" style="font-size:12.0pt; color:black">
Fisher <span class="x_x_x_x_x_xcontentpasted0"><span class="x_ContentPasted1" style="background:white">D 107 Z051,</span></span></span> is only rated for 400V. It is not clear to me who I need to speak to next. I would like to speak to the equipment owner/designer
so we can discuss the Lab's custom built equipment design criteria and to discuss our process for inspecting and approving custom built equipment. Would you please point me in the right direction?</div>
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Thanks for you help.</div>
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Rick Adrover</div>
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Environment, Safety and Health Division</div>
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Electrical Safety</div>
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Office: 757-269-5418</div>
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Cell: 912-596-3893</div>
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<img alt=""><img alt="" data-outlook-trace="F:2|T:2" src="cid:5ef5a6aa-f6e9-4c50-b58b-31bf518ba871"></div>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Mark Jones <jones@jlab.org><br>
<b>Sent:</b> Wednesday, March 1, 2023 9:49 AM<br>
<b>To:</b> Marc Mcmullen <mcmullen@jlab.org>; Chad Bailey <cbailey@jlab.org>; Amrit Yegneswaran <yeg@jlab.org>; Bogdan Wojtsekhowski <bogdanw@jlab.org>; Brian Eng <beng@jlab.org>; Mindy Leffel <leffel@jlab.org><br>
<b>Cc:</b> mayilyan@jlab.org <mayilyan@jlab.org>; dsg-halla_expt@jlab.org <dsg-halla_expt@jlab.org>; Bonnie Rodriguez <bonnie@jlab.org>; Phillip Stanley <pstanley@jlab.org>; Rick Adrover <adrover@jlab.org><br>
<b>Subject:</b> Re: GEp HV patch panels</font>
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Rick,</div>
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You can talk with Jack Segal and Chris Cuevas about the connectors.</div>
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<br>
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Cheers,</div>
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Mark</div>
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<div id="x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Marc Mcmullen <mcmullen@jlab.org><br>
<b>Sent:</b> Wednesday, March 1, 2023 9:18 AM<br>
<b>To:</b> Chad Bailey <cbailey@jlab.org>; Amrit Yegneswaran <yeg@jlab.org>; Mark Jones <jones@jlab.org>; Bogdan Wojtsekhowski <bogdanw@jlab.org>; Brian Eng <beng@jlab.org>; Mindy Leffel <leffel@jlab.org><br>
<b>Cc:</b> mayilyan@jlab.org <mayilyan@jlab.org>; dsg-halla_expt@jlab.org <dsg-halla_expt@jlab.org>; Bonnie Rodriguez <bonnie@jlab.org>; Phillip Stanley <pstanley@jlab.org>; Rick Adrover <adrover@jlab.org><br>
<b>Subject:</b> Re: GEp HV patch panels</font>
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Last week,</div>
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Phil Stanley, Bonnie Rodriguez, and Rick Androver stopped by and looked at the chassis with it's connectors.</div>
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Rick looked at the electrical drawing and said he was going to talk with the Hall A ECal staff about the connectors and design to get some clarity.</div>
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Regards,</div>
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Marc<br>
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<div id="x_x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Dsg-halla_expt <dsg-halla_expt-bounces@jlab.org> on behalf of Mindy Leffel via Dsg-halla_expt <dsg-halla_expt@jlab.org><br>
<b>Sent:</b> Wednesday, March 1, 2023 9:06 AM<br>
<b>To:</b> Chad Bailey <cbailey@jlab.org>; Amrit Yegneswaran <yeg@jlab.org>; Mark Jones <jones@jlab.org>; Bogdan Wojtsekhowski <bogdanw@jlab.org>; Brian Eng <beng@jlab.org><br>
<b>Cc:</b> mayilyan@jlab.org <mayilyan@jlab.org>; dsg-halla_expt@jlab.org <dsg-halla_expt@jlab.org><br>
<b>Subject:</b> Re: [Dsg-halla_expt] GEp HV patch panels</font>
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Are there any updates with this situation?<br>
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<div id="x_x_x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Chad Bailey <cbailey@jlab.org><br>
<b>Sent:</b> Thursday, February 23, 2023 1:28 PM<br>
<b>To:</b> Amrit Yegneswaran <yeg@jlab.org>; Mindy Leffel <leffel@jlab.org>; Mark Jones <jones@jlab.org>; Bogdan Wojtsekhowski <bogdanw@jlab.org>; Brian Eng <beng@jlab.org><br>
<b>Cc:</b> mayilyan@jlab.org <mayilyan@jlab.org>; dsg-halla_expt@jlab.org <dsg-halla_expt@jlab.org>; Patrizia Rossi <rossi@jlab.org><br>
<b>Subject:</b> RE: GEp HV patch panels</font>
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<p class="x_x_x_x_x_MsoNormal">Hey all, thanks for plugging me in. </p>
<p class="x_x_x_x_x_MsoNormal"> </p>
<p class="x_x_x_x_x_MsoNormal">We have no issue with doing a secondary review to ensure that we don’t have any concerns. I may get one of our staff electrical engineers to reach out and provide their thoughts.
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<p class="x_x_x_x_x_MsoNormal">I’m heading to another meeting now, so I’ll see how we can support once I get wrapped up.
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<p class="x_x_x_x_x_MsoNormal"><b>From:</b> Amrit Yegneswaran <yeg@jlab.org> <br>
<b>Sent:</b> Thursday, February 23, 2023 1:24 PM<br>
<b>To:</b> Mindy Leffel <leffel@jlab.org>; Mark Jones <jones@jlab.org>; Bogdan Wojtsekhowski <bogdanw@jlab.org>; Chad Bailey <cbailey@jlab.org>; Brian Eng <beng@jlab.org><br>
<b>Cc:</b> mayilyan@jlab.org; dsg-halla_expt@jlab.org; Patrizia Rossi <rossi@jlab.org><br>
<b>Subject:</b> Re: GEp HV patch panels</p>
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<p class="x_x_x_x_x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:black">good catch mindy, marc, tyler, brian</span></p>
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<p class="x_x_x_x_x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:black">we don't want to assemble that which doesn't comply with electrical safety regulations</span></p>
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<p class="x_x_x_x_x_MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> Dsg-halla_expt <<a href="mailto:dsg-halla_expt-bounces@jlab.org">dsg-halla_expt-bounces@jlab.org</a>> on behalf of Brian Eng via Dsg-halla_expt <<a href="mailto:dsg-halla_expt@jlab.org">dsg-halla_expt@jlab.org</a>><br>
<b>Sent:</b> Thursday, February 23, 2023 1:19 PM<br>
<b>To:</b> Mindy Leffel <<a href="mailto:leffel@jlab.org">leffel@jlab.org</a>>; Mark Jones <<a href="mailto:jones@jlab.org">jones@jlab.org</a>>; Bogdan Wojtsekhowski <<a href="mailto:bogdanw@jlab.org">bogdanw@jlab.org</a>>; Chad Bailey <<a href="mailto:cbailey@jlab.org">cbailey@jlab.org</a>><br>
<b>Cc:</b> <a href="mailto:mayilyan@jlab.org">mayilyan@jlab.org</a> <<a href="mailto:mayilyan@jlab.org">mayilyan@jlab.org</a>>;
<a href="mailto:dsg-halla_expt@jlab.org">dsg-halla_expt@jlab.org</a> <<a href="mailto:dsg-halla_expt@jlab.org">dsg-halla_expt@jlab.org</a>><br>
<b>Subject:</b> Re: [Dsg-halla_expt] GEp HV patch panels</span> </p>
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<p class="x_x_x_x_x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:black">Hi Bogdan,</span></p>
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<p class="x_x_x_x_x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:black">Has anyone from safety looked at these? The connectors have some specifications that are lower than 2 kV.</span></p>
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<p class="x_x_x_x_x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_x_x_x_x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:black">Fisher <span class="x_x_x_x_x_xcontentpasted0"><span style="background:white">D 107 Z051</span></span></span></p>
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<p class="x_x_x_x_x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:black">Smiths Interconnect D01EEB306FSTAH</span></p>
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<p class="x_x_x_x_x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:black">I'm not sure on the cable (it just has generic markings), but that would need to be checked as well.</span></p>
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<p class="x_x_x_x_x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:black">I've CC'd Chad as he is the electrical SME.</span></p>
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<p class="x_x_x_x_x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:black">Before Mindy can even start assembling these we would need to know they're okay to be used. There's also a question on parts availability, but that can be addressed
later.</span></p>
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<p class="x_x_x_x_x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:black">Thanks</span></p>
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<p class="x_x_x_x_x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:black">Brian</span></p>
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<p class="x_x_x_x_x_MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> Dsg-internal <<a href="mailto:dsg-internal-bounces@jlab.org">dsg-internal-bounces@jlab.org</a>> on behalf of Bogdan Wojtsekhowski via Dsg-internal <<a href="mailto:dsg-internal@jlab.org">dsg-internal@jlab.org</a>><br>
<b>Sent:</b> Thursday, February 23, 2023 10:35 AM<br>
<b>To:</b> Mindy Leffel <<a href="mailto:leffel@jlab.org">leffel@jlab.org</a>>; Mark Jones <<a href="mailto:jones@jlab.org">jones@jlab.org</a>><br>
<b>Cc:</b> <a href="mailto:mayilyan@jlab.org">mayilyan@jlab.org</a> <<a href="mailto:mayilyan@jlab.org">mayilyan@jlab.org</a>>;
<a href="mailto:shahinya@jlab.org">shahinya@jlab.org</a> <<a href="mailto:shahinya@jlab.org">shahinya@jlab.org</a>>; dsg-internal <<a href="mailto:dsg-internal@jlab.org">dsg-internal@jlab.org</a>><br>
<b>Subject:</b> Re: [Dsg-internal] GEp HV patch panels</span> </p>
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<p class="x_x_x_x_x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:black">High voltage supply for the ECAL calorimeter. Max voltage is 2000 Volts.</span></p>
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<p class="x_x_x_x_x_MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> Mindy Leffel <<a href="mailto:leffel@jlab.org">leffel@jlab.org</a>><br>
<b>Sent:</b> Thursday, February 23, 2023 10:26 AM<br>
<b>To:</b> Mark Jones <<a href="mailto:jones@jlab.org">jones@jlab.org</a>><br>
<b>Cc:</b> Bogdan Wojtsekhowski <<a href="mailto:bogdanw@jlab.org">bogdanw@jlab.org</a>>;
<a href="mailto:mayilyan@jlab.org">mayilyan@jlab.org</a> <<a href="mailto:mayilyan@jlab.org">mayilyan@jlab.org</a>>;
<a href="mailto:shahinya@jlab.org">shahinya@jlab.org</a> <<a href="mailto:shahinya@jlab.org">shahinya@jlab.org</a>>; dsg-internal <<a href="mailto:dsg-internal@jlab.org">dsg-internal@jlab.org</a>><br>
<b>Subject:</b> GEp HV patch panels</span> </p>
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<p class="x_x_x_x_x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:black">Hi Mark,</span></p>
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<p class="x_x_x_x_x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:black">I would like to get some additional information about the patch panel boxes. Could you please provide the purpose of the boxes and what is the maximum voltage
they will receive?</span></p>
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<p class="x_x_x_x_x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:black">Thanks,</span></p>
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<p class="x_x_x_x_x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:black">Mindy</span></p>
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