[PSES] PSES: EMC engineer, Salem VA

2020-02-16 Thread Brian Gregory
 FYI, folks.   Greetings,My name is Deepak Prasher from USG ("United Software 
Group"). I am an Account Manager. I came across your resume and wanted to send 
a quick note your way.  We have an opening that might be a great next step for 
you.  Please carefully read the Job Description below, and if you would like to 
pursue this opportunity please email me an updated resume and Let me know the 
best time to reach you. I appreciate your time and look forward to hearing from 
you.Job description:Role: Electromagnetic Compatibility engineerSalem VA 
The EMC (Electromagnetic Compatibility) engineer is an electrical engineer who 
possesses analog and electrical circuit design and analysis capability in 
conjunction with a specialization in the domain of electromagnetic 
susceptibility and emissions. In this role the EMC engineer will assist in the 
testing and certification of electronic equipment by accompanying the equipment 
to a certified lab, preparing the equipment for test, analyzing the test 
results, diagnosing any non-conformances, and recommending potential solutions. 
If any design changes are required, the EMC engineer may implement the changes 
and prepare the equipment for retesting.Familiarity and practical experience 
with Mark VIe control systems is a desire Account ManagerThanks & RegardsDeepak 
Prasher
United Software Group Inc.
565 Metro Place S. Suite # 110
Dublin, OH 43017
Direct: 614-588-8479 (Ext: 491)||Fax: 1-866-764-114www.usgrpinc.com|| 
https://www.linkedin.com/in/deepak-kumar-4131b378/ To unsubscribe from this 
mailing, please reply to this email with the word UNSUBSCRIBE in the subject 
line, or click here UNSUBSCRIBE.USG is an Equal Opportunity Employer. Qualified 
applicants will receive consideration for employment without regard to race, 
color, religion, gender, age, disability, military status, national origin or 
any other characteristic protected under federal, state, or applicable local 
law Brian Gregory
720-450-4933

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Re: [PSES] Construction Site Power Cords, Germany

2020-02-16 Thread MIKE SHERMAN
Colleagues -

I contacted DGUV on 29 January 2020 via their website to determine if 
"comparable work equipment" included such things as cord connected equipment 
that is not hand held. The 29 January response from their engineer Hans-Peter 
Steimel was that such equipment was indeed "comparable work equipment" because 
it was considered "mobile equipment, because it is possible to move them during 
operation or it can be moved easily from one location to another whilst 
connected to the supply circuit."

This apparently stems from a different DGUV safety document, BGV/GUV-V A3 E, 
1979, section 5(1)2, specifically its instructions for implementation.

Thanks to all for you help!
And thanks to Herr Steimel for his quick response.

Mike Sherman
Product Safety Engineer
Graco Inc.

> On January 29, 2020 at 8:29 AM "Bender, Curtis" 
> <10270e3f0a68-dmarc-requ...@ieee.org> wrote:
> 
> Hi Mike,
> 
> More info supporting Ted and Bernd…
> 
>  
> 
> In answer to your question Does anyone know what is meant by "comparable 
> work equipment"?  
> 
> From a German colleague: Different equipment that is hand held during 
> usage. Hand held means also where the weight of the machine is supported 
> during holding a machine. Equipment which is hand-guided, like a vacuum 
> cleaner or a high pressure washer, you don’t have the weight supported by 
> hand as you are not carrying the machine in your hand.
> 
>  
> 
> And… “within DGUV Information 203-006, section 5.1.5 there is an example 
> depicted (page 28 Abb. 14).
> 
>  
> 
> I’ll forward you additional information under separate email.
> 
>  
> 
> Curt
> 
>  
> 
> The opinions expressed are my own and do not necessarily reflect those of 
> my employer.
> 
> __
> 
> Curtis Bender | IEEE Senior Member
> curtis.ben...@tennantco.com mailto:curtis.ben...@tennantco.com
> 
>  
> 
>  
> 
> From: Charlie Blackham 
> Sent: Wednesday, January 29, 2020 3:41 AM
> To: EMC-PSTC@LISTSERV.IEEE.ORG
> Subject: Re: [PSES] Construction Site Power Cords, Germany
> 
>  
> 
> Looking at an example cable spec for H07BQ-F 
> https://ajhcables.com/types-of-cable/rawflex-pur-cables/h07bq-f-halogen-free-pur-cable/
>  several things jump out over and above a “normal” H05VV-F mains cable:
> 
> * Extended temperature range
> * UV resistance
> * Lubricant/acid/alkali resistance
> 
>  
> 
> Regards
> 
> Charlie
> 
>  
> 
> Charlie Blackham
> 
> Sulis Consultants Ltd
> 
> Tel: +44 (0)7946 624317
> 
> Web: https://sulisconsultants.com/
> 
> Registered in England and Wales, number 05466247
> 
>  
> 
> From: Dürrer Bernd mailto:bernd.duer...@wilo.com >
> Sent: 29 January 2020 08:29
> To: EMC-PSTC@LISTSERV.IEEE.ORG mailto:EMC-PSTC@LISTSERV.IEEE.ORG
> Subject: [PSES] AW: [PSES] Construction Site Power Cords, Germany
> 
>  
> 
> Hello Mike,
> 
>  
> 
> the original German phrase is „Handgeführte Elektrowerkzeuge und 
> vergleichbare Arbeitsmittel“ (page 27 of 
> https://www.bghm.de/fileadmin/user_upload/Arbeitsschuetzer/Gesetze_Vorschriften/Informationen/203_006.pdf
>  
> https://www.bghm.de/fileadmin/user_upload/Arbeitsschuetzer/Gesetze_Vorschriften/Informationen/203_006.pdf
>  ). I would translate „handgeführt“ rather as hand-operated or manually 
> controlled. The German term for hand-held is „handgehalten“, which is a 
> special case of hand-operated/handgeführt. In the original document, there is 
> an example illustration on page 28 that shows a wall chaser with integrated 
> dust collection system that is hand-operated, while the whole equipment is 
> portable, but not hand-held.
> 
>  
> 
> So I agree with Ted’s interpretation that portable tools are in the scope 
> of “comparable work equipment”, but I would go even further that electrical 
> equipment that is temporarily fixed on the construction site (like hoists or 
> cranes) is also in the scope of this definition.
> 
>  
> 
> Kind regards,
> 
>  
> 
> Bernd
> 
>  
> 
> Von: John Woodgate mailto:j...@woodjohn.uk >
> Gesendet: Mittwoch, 29. Januar 2020 08:53
> An: EMC-PSTC@LISTSERV.IEEE.ORG mailto:EMC-PSTC@LISTSERV.IEEE.ORG
> Betreff: Re: [PSES] Construction Site Power Cords, Germany
> 
>  
> 
> You would probably have to ask for the meaning of  the original vague 
> German phrase, because much may be obscured in translation.
> 
> On 2020-01-29 02:04, MIKE SHERMAN wrote:
> 
> > > 
> > A German insurance document, DGUV Information 203-006 ( Selection 
> > and operation of electrical systems and equipment on construction and 
> > assembly sites ),  has a requirement for either rubber or polyurethane 
> > jacketed power cables in its section 5.15:
> > "   Hand-held power tools and comparable work equipment

[PSES] Test please ignore

2020-02-16 Thread John Woodgate

Please ignore


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[PSES] Keeping cellphone noise out of audio op-maps

2020-02-16 Thread John Woodgate

I see two apparent ways of keeping cellphone noise out of audio op-amps:

- 10 pF between + and - inputs;

- 47 pF (or similar) from output to inverting input.

Which is usually more effective? I suspect that the first one is, but I 
see it less often.



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