[PSES] Need a switch

2018-04-02 Thread Ken Javor 
All,

Building a piece of test equipment for personal use. Need a switch whose
dielectric insulation can withstand 3 kVdc. It doesn¹t need to switch 3
kVdc: switching action occurs when no voltage is present.  Very low current
at all times (<< 1 ampere).

When I search for switches with high voltage capability, I only find vacuum
relays. That is overkill for this application.  And I don¹t want some 440
Vac contactor ­ that is overkill as well.

Can anyone point me towards a switch with a normal operate voltage like 125
or 250 Vac but with the ability to withstand the aforesaid potential when in
steady-state mode?

All the switch does is either feed a pair of conductors with the 3 kV
between them straight through, or reverse the output for opposite polarity
operation.

Thank you,

Ken Javor
Phone: (256) 650-5261


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Re: [PSES] New Guide to the EMC Directive

2018-04-02 Thread Steve Leitner 
Hi Edgard,

We had an Easter Egg hunt for granddaughters and niece, and celebrated my Mom’s 
93rd b-day.  Had a good time.   

How about your family - did you go to Fairfield?

Any update on Oliver?  Is he still in the hospital?

Steve

Sent from my iPhone

> On Apr 2, 2018, at 11:11 AM, Doug Nix  wrote:
> 
> Colleagues,
> 
> In case you missed it, the EU has finally issued a new Guide to the EMC 
> Directive. Get yours for free:
> 
> https://ec.europa.eu/docsroom/documents/28323
> 
> Doug Nix
> d...@ieee.org
> +1 (519) 729-5704
> 
> -
> 
> This message is from the IEEE Product Safety Engineering Society emc-pstc 
> discussion list. To post a message to the list, send your e-mail to 
> 
> 
> All emc-pstc postings are archived and searchable on the web at: 
> http://www.ieee-pses.org/emc-pstc.html
> 
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> 
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> unsubscribe)
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> 
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> Scott Douglas 
> Mike Cantwell 
> 
> For policy questions, send mail to:
> Jim Bacher 
> David Heald 

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[PSES] New Guide to the EMC Directive

2018-04-02 Thread Doug Nix 
Colleagues,

In case you missed it, the EU has finally issued a new Guide to the EMC 
Directive. Get yours for free:

https://ec.europa.eu/docsroom/documents/28323

Doug Nix
d...@ieee.org
+1 (519) 729-5704


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Re: [PSES] EMCO Model 4630 Refrad Comb Generator

2018-04-02 Thread Doug Powell 
  If you're feeling adventurous, here is another DIY generator from EDN, this one is 6 GHz.https://www.edn.com/electronics-blogs/the-emc-blog/4402169/DIY-6-GHz-comb-generatorBest, Doug   From: mbar...@integrity.comSent: April 1, 2018 2:10 PMTo: EMC-PSTC@LISTSERV.IEEE.ORGReply-to: mbar...@integrity.comSubject: Re: [PSES] EMCO Model 4630 Refrad Comb Generator  Hi Richard, Here's a copy of the 19-page manual:http://manualzz.com/doc/11597273/model-4630-refrad-reference-radiator-manualIt doesn't have schematics but maybe there's something in the manual that may help. Also check this 20 year old e-mail from the EMC-PSTC archive:https://www.mail-archive.com/emc-pstc@listserv.ieee.org/msg05914.htmlMaybe this person has some useful information.It's a long shot but still worth a check. Manny Barron   From:  Richard Marshall [mailto:0aeebd4dc3f4-dmarc-requ...@ieee.org]Sent: Thursday, March 29, 2018 4:56 AMTo:  EMC-PSTC@LISTSERV.IEEE.ORGSubject: [PSES] EMCO Model 4630 Refrad Comb Generator Hi All,I am trying to resurrect the Electronics of an EMCO model 4630 refrad comb generator for use on an international standardisation project. Whilst in storage for the last three years it has developed a fault, I think with the 70 V power supply, but I do not have the schematic to help with further investigation.Can anyone supply me with a schematic of this comb generator, or other circuit-board level technical information that might help? Thanks in anticipation, and a happy Easter to you all. Richard G3SBA Richard Marshall Laboratories,30 Ox Lane, Harpenden, Herts.,    AL5 4HE, UK +44 (0)1582 460815www.design-emc.co.ukMember of the EMC Industry Association  Virus-free. www.avg.com -This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.htmlAttachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc.Website: http://www.ieee-pses.org/Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe)List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators:Scott Douglas Mike Cantwell  For policy questions, send mail to:Jim Bacher David Heald  
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