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Good to know.<br>
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Thanks for the information everyone.</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Stephen Wood <saw@jlab.org><br>
<b>Sent:</b> Tuesday, September 1, 2020 3:54 PM<br>
<b>To:</b> Brad Sawatzky <brads@jlab.org><br>
<b>Cc:</b> Jack Segal <segal@jlab.org>; Aaron Brown <ambrown@jlab.org>; dsg-hallc_nps@jlab.org <dsg-hallc_nps@jlab.org><br>
<b>Subject:</b> Re: [EXTERNAL] [Dsg-hallc_nps] SAMTEC connectors</font>
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<div class="PlainText">I have talked to Chris Cuevas some and he has talked to someone on the electrical safety committee. The impression I am getting is that, in light of previous accidents and the office of enforcement visit, we should be very reluctant
to use under-rated parts. We should set up a meeting with him and all interested to discuss what we can grandfather in, if anything, and what needs to be redesigned. Chris is unfortunately busy this week with a conference, so it will have to be next week.<br>
<br>
We don’t have to rush to order anything before the end of the fiscal year. It would have been nice, but we do have money in next year’s budget.<br>
<br>
Steve<br>
<br>
> On Sep 1, 2020, at 3:44 PM, Brad Sawatzky <brads@jlab.org> wrote:<br>
> <br>
> Based on what I've heard from Steve, I think prototypes of the NPS<br>
> chassis connectors boards will have to be sent to JLab and tested so<br>
> someone here can sign off on it.<br>
> <br>
> I believe that will push the 'NPS side' of the NPS HV connector issue<br>
> into the next FY.<br>
> <br>
> -- Brad<br>
> <br>
> On Tue, 01 Sep 2020, Jack Segal wrote:<br>
> <br>
>> The last I have seen was the email on 8/25 from Thi.<br>
>> So, I believe no further thought has been given to an alternative.<br>
>> I do not have a problem with the connectors, assuming the OSP states no plugging and unplugging under voltage. I'm<br>
>> certain that is how people would prefer the work to be done on the detector, with HV off.<br>
>> <br>
>> On 9/1/2020 1:54 PM, Aaron Brown wrote:<br>
>>> Hi Brad and Jack,<br>
>>> <br>
>>> I just wanted to touch base about something ahead of this Friday's (09/04) meeting.<br>
>>> As you know, we are in the process of procuring all of the materials<br>
>>> needed to fabricate the 42 HV multi-conductor cables.<br>
>>> I was wondering if there had been anymore discussion regarding the<br>
>>> SAMTEC connector voltage rating.<br>
>>> The only items left for us to order are the IPBD-08-D-K and<br>
>>> IPBD-15-D-K SAMTEC connectors, but as these are rated below the<br>
>>> assumed operating voltage (anywhere from 800 V to 1100 V), we have<br>
>>> not ordered them yet.<br>
>>> <br>
>>> Would either of you be able to speak to whether alternative<br>
>>> connectors are being considered/researched, or if these SAMTEC<br>
>>> connectors are fine to order?<br>
>>> <br>
>>> Thanks,<br>
>>> Aaron<br>
>>> <br>
>>> <br>
>>> _______________________________________________<br>
>>> Dsg-hallc_nps mailing list<br>
>>> Dsg-hallc_nps@jlab.org<br>
>>> <a href="https://mailman.jlab.org/mailman/listinfo/dsg-hallc_nps">https://mailman.jlab.org/mailman/listinfo/dsg-hallc_nps</a><br>
>>> <br>
>> <br>
> -- <br>
> Brad Sawatzky, PhD <brads@jlab.org> -<>- Jefferson Lab / Hall C / C111<br>
> Ph: 757-269-5947 -<>- Fax: 757-269-5235 -<>- Pager: brads-page@jlab.org<br>
> The most exciting phrase to hear in science, the one that heralds new<br>
> discoveries, is not "Eureka!" but "That's funny..." -- Isaac Asimov<br>
<br>
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