[Test-Equipment] Mains protection for workbench test equipment?

[Eric Lemmon]

Ideally, the isolation transformer should power only the piece of equipment
you're working on, not the entire bench.  Many items of bench test equipment
have EMI filters on their power inputs, and the leakage current through the
integral filter capacitors and/or MOVs can create a shock hazard.  Indeed,
some test equipment makers clearly warn users that their equipment must be
solidly grounded for safe operation.

73, Eric Lemmon WB6FLY
 

-----Original Message-----
From: test-equipment-bounces at mailman.qth.net
[mailto:test-equipment-bounces at mailman.qth.net] On Behalf Of Gary Pewitt
Sent: Monday, February 18, 2008 11:42 AM
To: Discussion of Electronic Test Equipment; Discussion of Electronic Test
Equipment
Subject: Re: [SPAM] Re: [Test-Equipment] Mains protection for work bench
test equipment?

Protection from shocks.  Could save your life.
73  Gary



At 11:17 PM 2/17/2008, davec wrote:
>>HI, this thing about test benches needs another note, I like to have
>>isolation from the rest of the house so each bench is fed to a
>>Wiremold plug strip through an isolation tx.
>>[...]
>>
>>JACK IVERSON
>
>Excuse the really basic question, but what's the advantage of 
>isolation for the bench power?
>
>Dave
>______________________________________________________________
>Test-Equipment mailing list
>Home: http://mailman.qth.net/mailman/listinfo/test-equipment
>Help: http://mailman.qth.net/mmfaq.html
>Post: mailto:Test-Equipment at mailman.qth.net

end
Gary Pewitt  N9ZSV   n9zsv at magtel.com  479 675 4376
1500 French Prairie Rd. Booneville, Arkansas  72927
Sturgeon's Law "Ninety percent of everything is crap"  But it's that 
other 10% that makes life worth living.


______________________________________________________________
Test-Equipment mailing list
Home: http://mailman.qth.net/mailman/listinfo/test-equipment
Help: http://mailman.qth.net/mmfaq.html
Post: mailto:Test-Equipment at mailman.qth.net