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Date: | Thu, 5 Mar 1998 08:43:57 +0000 |
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Hi.
>
> Miguel Morillo wrote:
> >
> > Is properly grounding hardware only important in cold, dry countries?
>
> Temperature and humidity can affect levels of static electricity which
> needs a good ground in order to be discharged. But temperature and
> humidity have nothing to do with the need to ground equipment.
>
> If your equipment uses a three-prong plug, then it is properly
> grounded to the house/office wiring system. Next you need to
> make sure the house/office is properly grounded. To do this,
> you need to go outside and locate the electrical service entrance
> (the electric meter). Somewhere in the immediate area you should be
> able to see a single heavy solid wire (sometimes bare copper, sometimes
> green) that is attached to a metal (copper) pole in the ground.
!!!!!!!!!!!!!!
> An alternate method that is allowed in some areas is to attach
> the wire to a metal water pipe. This will work also -- as long as
> there are no sections of plastic pipe between the wire and the earth.
!!!!!!!!!!!!!!
> --
> Jim Meagher
Attaching the wire to a water pipe I think is a dangerous solution.
If there is insulance, or any problem, and there is a high voltage
causing current flow to real ground, and somebody in between touches the
pipe, he can be fried. Don't do that at home: you can fry a neighbour!
************************************
Javier Vizcaino. Ability Electronics. [log in to unmask]
Starting point: (-1)^(-1) = -1
Applying logarithms: (-1)*ln(-1) = ln(-1)
Since ln(-1) <> 0, dividing: -1 = 1
(ln(-1) is complex, but exists)
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