[sdiy] ESD grounding in USA

[Harry Bissell]

IMHO the third wire grounds in the USA notoriously suck !

If they are even there, they may go through a very long, convoluted
path to anything like a ground. The inductance would probably stop
any fast moving signal from being attenuated...

It might keep static drained off your body, and better than nothing but
I'd go for a metal cold-water pipe if possible. I have a ground rod
outside my house, with an isolated power system for my studio...

H^) harry


----- Original Message -----
From: Seb Francis <seb at burnit.co.uk>
To: synth dIY <synth-diy at dropmix.xs4all.nl>
Sent: Mon, 18 Oct 2010 14:42:47 -0400 (EDT)
Subject: Re: [sdiy] ESD grounding in USA

  On 18/10/2010 18:41, Tom Corbitt wrote:
> That one should have the banana connection. Unsure why the picture I
> sent didn't show it, it's part of a system that does just that. Here's
> another one that shows it clearly. Almost all the portable mats I've
> ever seen use this kind of connection.
>
> http://www.stanleysupplyservices.com/product-detail.aspx?pn=122-789&ref=base


Yes, that's exactly the sort of thing I'm after.  Now I just need to find one with a smaller price tag!


> Up till about the early to mid 60's in the US it was not uncommon to
> find only two wires (hot&  neutral) to outlets. But you would be hard
> pressed to buy only two wire romex these days. Every home inspection
> I've had in the last 15 years has included the inspector going around
> and plugging the tester into every outlet they saw to insure all is
> well.

Well, it's good to know that all modern wired houses will have a ground connection - I guess anywhere there's a 3 prong socket, there should be an earth connection to a nearby ground rod.  Still the ground connection point with built in tester seems like a good idea to be sure .. if only I can find one in the sub-$10 price range.

Seb

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-- 
Harry Bissell & Nora Abdullah 4eva