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Re: ground problems
From: Bert Hickman[SMTP:bert.hickman-at-aquila-dot-com]
Reply To: bert.hickman-at-aquila-dot-com
Sent: Tuesday, September 16, 1997 8:12 AM
To: Tesla List
Subject: Re: ground problems
Tesla List wrote:
>
> From: Mad Coiler[SMTP:tesla_coiler-at-hotmail-dot-com]
> Sent: Monday, September 15, 1997 6:55 PM
> To: tesla-at-pupman-dot-com
> Subject: ground problems
>
> I am back in Columbus for a while and have one problem. I am on the
> second level in an apartment building. Does anyone have any suggestions
> about how I can get a descent ground? I have been using the cold water
> copper pipe to the sink but have been informed that it is a fire risk. I
> suppose I might have to take it to a friends house if that is possible.
> So far I haven't had any noise complaints, but only because I havent run
> it past 8pm.
>
> Mad Coiler
Mad,
Because of the use of plastic plumbing in many areas, your ground may
not really be a ground. To determine if it is, take an ohmmeter and
carefully measure the resistance between the ground connection (the
third prong on a nearby AC outlet) and your cold water copper pipe
ground. If you get good continuity (say 20 ohms or less), then you
should be OK. Another alternative ground is the ironwork of the building
you're in if it happens to be an iron-concrete type structure, or as a
last resort, the AC ground itself if you have a small coil.
-- Bert --