[Dsg-halla_expt] GEp HV patch panels

[Jack Segal]

The breakdown between contacts for the three pin connector is 2250V.

On 3/10/2023 9:11 AM, shahinya at jlab.org wrote:
> Hi Mindy,
> 
> A few days ago I was discussing with Jack about
> plastic connector, and Jack told me that the plastic connector
> can also operate on 2000 volts, but the PMT will operate on 1800 volts.
> 
> PS: Hi Jack, please confirm using the plastic connectors
> for the high voltage box.
> 
> Thank you,
> Albert
> 
>> Are the other connectors also rated for 2000 volts?
>>
>> I can't take credit. I believe it was Brian Eng that raised the issue.
>>
>> ________________________________
>> From: Mark Jones <jones at jlab.org>
>> Sent: Friday, March 10, 2023 6:51 AM
>> To: Rick Adrover <adrover at jlab.org>; Marc Mcmullen <mcmullen at jlab.org>;
>> Chad Bailey <cbailey at jlab.org>; Bogdan Wojtsekhowski <bogdanw at jlab.org>;
>> Brian Eng <beng at jlab.org>; Mindy Leffel <leffel at jlab.org>
>> Cc: mayilyan at jlab.org <mayilyan at jlab.org>; Phillip Stanley
>> <pstanley at jlab.org>; Albert Shahinyan <shahinya at jlab.org>;
>> dsg-halla_expt at jlab.org <dsg-halla_expt at jlab.org>; Chris Cuevas
>> <cuevas at jlab.org>; Jack Segal <segal at jlab.org>
>> Subject: Re: GEp HV patch panels
>>
>> We had a meeting last Tuesday with Rick Adrover, Chris Cuevas and Jack
>> Segal about the Fischer 27 pin connector.
>> Rick Adrover contacted Fischer and got clarification about the HV ratings.
>> Rick is comfortable with using
>> these connectors for their intended  purpose. Rick has setup a database
>> for non-NRTL equipment such
>> as these patch panels, so we will need to put the new patch panels in the
>> database. I can work with Albert
>> to put the old patch panels and the new patch panels in this database.
>>
>> I would like to thank Mindy for raising this issue about the connectors.
>> It was important to get this clarification
>> and determination of the applicability of  the Fischer 27 pin and plastic
>> connectors for the intended HV usage.
>>
>> Cheers,
>>           Mark
>> ________________________________
>> From: Rick Adrover <adrover at jlab.org>
>> Sent: Friday, March 3, 2023 8:48 AM
>> To: Mark Jones <jones at jlab.org>; Marc Mcmullen <mcmullen at jlab.org>; Chad
>> Bailey <cbailey at jlab.org>; Amrit Yegneswaran <yeg at jlab.org>; Bogdan
>> Wojtsekhowski <bogdanw at jlab.org>; Brian Eng <beng at jlab.org>; Mindy Leffel
>> <leffel at jlab.org>
>> Cc: mayilyan at jlab.org <mayilyan at jlab.org>; Bonnie Rodriguez
>> <bonnie at jlab.org>; Phillip Stanley <pstanley at jlab.org>
>> Subject: Re: GEp HV patch panels
>>
>> Mark,
>>
>> I spoke to Chris about the patch panels.  He concurs that some of the
>> parts used are not rated for this application.  Specifically, this
>> connector: Fisher D 107 Z051, 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?
>>
>> Thanks for you help.
>>
>> Rick Adrover
>> Environment, Safety and Health Division
>> Electrical Safety
>> Office:  757-269-5418
>> Cell:  912-596-3893
>>
>> [X][cid:5ef5a6aa-f6e9-4c50-b58b-31bf518ba871]
>> ________________________________
>> From: Mark Jones <jones at jlab.org>
>> Sent: Wednesday, March 1, 2023 9:49 AM
>> To: Marc Mcmullen <mcmullen at jlab.org>; Chad Bailey <cbailey at jlab.org>;
>> Amrit Yegneswaran <yeg at jlab.org>; Bogdan Wojtsekhowski <bogdanw at jlab.org>;
>> Brian Eng <beng at jlab.org>; Mindy Leffel <leffel at jlab.org>
>> Cc: mayilyan at jlab.org <mayilyan at jlab.org>; dsg-halla_expt at jlab.org
>> <dsg-halla_expt at jlab.org>; Bonnie Rodriguez <bonnie at jlab.org>; Phillip
>> Stanley <pstanley at jlab.org>; Rick Adrover <adrover at jlab.org>
>> Subject: Re: GEp HV patch panels
>>
>> Rick,
>>             You can talk with Jack Segal and Chris Cuevas about the
>> connectors.
>>
>> Cheers,
>>            Mark
>> ________________________________
>> From: Marc Mcmullen <mcmullen at jlab.org>
>> Sent: Wednesday, March 1, 2023 9:18 AM
>> To: Chad Bailey <cbailey at jlab.org>; Amrit Yegneswaran <yeg at jlab.org>; Mark
>> Jones <jones at jlab.org>; Bogdan Wojtsekhowski <bogdanw at jlab.org>; Brian Eng
>> <beng at jlab.org>; Mindy Leffel <leffel at jlab.org>
>> Cc: mayilyan at jlab.org <mayilyan at jlab.org>; dsg-halla_expt at jlab.org
>> <dsg-halla_expt at jlab.org>; Bonnie Rodriguez <bonnie at jlab.org>; Phillip
>> Stanley <pstanley at jlab.org>; Rick Adrover <adrover at jlab.org>
>> Subject: Re: GEp HV patch panels
>>
>> Last week,
>>
>> Phil Stanley, Bonnie Rodriguez, and Rick Androver stopped by and looked at
>> the chassis with it's connectors.
>>
>> 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.
>>
>> Regards,
>> Marc
>> ________________________________
>> From: Dsg-halla_expt <dsg-halla_expt-bounces at jlab.org> on behalf of Mindy
>> Leffel via Dsg-halla_expt <dsg-halla_expt at jlab.org>
>> Sent: Wednesday, March 1, 2023 9:06 AM
>> To: Chad Bailey <cbailey at jlab.org>; Amrit Yegneswaran <yeg at jlab.org>; Mark
>> Jones <jones at jlab.org>; Bogdan Wojtsekhowski <bogdanw at jlab.org>; Brian Eng
>> <beng at jlab.org>
>> Cc: mayilyan at jlab.org <mayilyan at jlab.org>; dsg-halla_expt at jlab.org
>> <dsg-halla_expt at jlab.org>
>> Subject: Re: [Dsg-halla_expt] GEp HV patch panels
>>
>> Are there any updates with this situation?
>> ________________________________
>> From: Chad Bailey <cbailey at jlab.org>
>> Sent: Thursday, February 23, 2023 1:28 PM
>> To: Amrit Yegneswaran <yeg at jlab.org>; Mindy Leffel <leffel at jlab.org>; Mark
>> Jones <jones at jlab.org>; Bogdan Wojtsekhowski <bogdanw at jlab.org>; Brian Eng
>> <beng at jlab.org>
>> Cc: mayilyan at jlab.org <mayilyan at jlab.org>; dsg-halla_expt at jlab.org
>> <dsg-halla_expt at jlab.org>; Patrizia Rossi <rossi at jlab.org>
>> Subject: RE: GEp HV patch panels
>>
>>
>> Hey all, thanks for plugging me in.
>>
>>
>>
>> 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.
>>
>>
>>
>> I'm heading to another meeting now, so I'll see how we can support once I
>> get wrapped up.
>>
>>
>>
>> From: Amrit Yegneswaran <yeg at jlab.org>
>> Sent: Thursday, February 23, 2023 1:24 PM
>> To: Mindy Leffel <leffel at jlab.org>; Mark Jones <jones at jlab.org>; Bogdan
>> Wojtsekhowski <bogdanw at jlab.org>; Chad Bailey <cbailey at jlab.org>; Brian
>> Eng <beng at jlab.org>
>> Cc: mayilyan at jlab.org; dsg-halla_expt at jlab.org; Patrizia Rossi
>> <rossi at jlab.org>
>> Subject: Re: GEp HV patch panels
>>
>>
>>
>> good catch mindy,  marc, tyler, brian
>>
>> we don't want to assemble that which doesn't comply with electrical safety
>> regulations
>>
>> ________________________________
>>
>> From: Dsg-halla_expt
>> <dsg-halla_expt-bounces at jlab.org<mailto:dsg-halla_expt-bounces at jlab.org>>
>> on behalf of Brian Eng via Dsg-halla_expt
>> <dsg-halla_expt at jlab.org<mailto:dsg-halla_expt at jlab.org>>
>> Sent: Thursday, February 23, 2023 1:19 PM
>> To: Mindy Leffel <leffel at jlab.org<mailto:leffel at jlab.org>>; Mark Jones
>> <jones at jlab.org<mailto:jones at jlab.org>>; Bogdan Wojtsekhowski
>> <bogdanw at jlab.org<mailto:bogdanw at jlab.org>>; Chad Bailey
>> <cbailey at jlab.org<mailto:cbailey at jlab.org>>
>> Cc: mayilyan at jlab.org<mailto:mayilyan at jlab.org>
>> <mayilyan at jlab.org<mailto:mayilyan at jlab.org>>;
>> dsg-halla_expt at jlab.org<mailto:dsg-halla_expt at jlab.org>
>> <dsg-halla_expt at jlab.org<mailto:dsg-halla_expt at jlab.org>>
>> Subject: Re: [Dsg-halla_expt] GEp HV patch panels
>>
>>
>>
>> Hi Bogdan,
>>
>>
>>
>> Has anyone from safety looked at these? The connectors have some
>> specifications that are lower than 2 kV.
>>
>>
>>
>> Fisher D 107 Z051
>>
>> Smiths Interconnect D01EEB306FSTAH
>>
>>
>>
>> I'm not sure on the cable (it just has generic markings), but that would
>> need to be checked as well.
>>
>>
>>
>> I've CC'd Chad as he is the electrical SME.
>>
>>
>>
>> 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.
>>
>>
>>
>> Thanks
>>
>> Brian
>>
>> ________________________________
>>
>> From: Dsg-internal
>> <dsg-internal-bounces at jlab.org<mailto:dsg-internal-bounces at jlab.org>> on
>> behalf of Bogdan Wojtsekhowski via Dsg-internal
>> <dsg-internal at jlab.org<mailto:dsg-internal at jlab.org>>
>> Sent: Thursday, February 23, 2023 10:35 AM
>> To: Mindy Leffel <leffel at jlab.org<mailto:leffel at jlab.org>>; Mark Jones
>> <jones at jlab.org<mailto:jones at jlab.org>>
>> Cc: mayilyan at jlab.org<mailto:mayilyan at jlab.org>
>> <mayilyan at jlab.org<mailto:mayilyan at jlab.org>>;
>> shahinya at jlab.org<mailto:shahinya at jlab.org>
>> <shahinya at jlab.org<mailto:shahinya at jlab.org>>; dsg-internal
>> <dsg-internal at jlab.org<mailto:dsg-internal at jlab.org>>
>> Subject: Re: [Dsg-internal] GEp HV patch panels
>>
>>
>>
>> High voltage supply for the ECAL calorimeter. Max voltage is 2000 Volts.
>>
>> ________________________________
>>
>> From: Mindy Leffel <leffel at jlab.org<mailto:leffel at jlab.org>>
>> Sent: Thursday, February 23, 2023 10:26 AM
>> To: Mark Jones <jones at jlab.org<mailto:jones at jlab.org>>
>> Cc: Bogdan Wojtsekhowski <bogdanw at jlab.org<mailto:bogdanw at jlab.org>>;
>> mayilyan at jlab.org<mailto:mayilyan at jlab.org>
>> <mayilyan at jlab.org<mailto:mayilyan at jlab.org>>;
>> shahinya at jlab.org<mailto:shahinya at jlab.org>
>> <shahinya at jlab.org<mailto:shahinya at jlab.org>>; dsg-internal
>> <dsg-internal at jlab.org<mailto:dsg-internal at jlab.org>>
>> Subject: GEp HV patch panels
>>
>>
>>
>> Hi Mark,
>>
>>
>>
>> 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?
>>
>>
>>
>> Thanks,
>>
>>
>>
>> Mindy
>>
> 
> 

-- 
John(Jack) Segal
Halls A and C Spectrometer Support Manager
Thomas Jefferson National Accelerator Facility
12000 Jefferson Avenue
Suite 12
Newport News, VA 23606-4486
Phone: (757) 269-7242
Cell: (757) 320-9977