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Re: [PLUG] Laptop reboots -- Comcast or static or age?
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For static discharge, a 1M resistor (1 MegOhm) is
sufficient. This will prevent you from conducting a fatal
(or even painful) current should you come in contact with
something that is of lower voltage and lower impedance (IE:
110V AC) while grounded by the strap.
You would be amazed at the number of mis-wired electrical
circuits and devices there are out there. Some small
televisions, for example, have one side of the AC line tied
to the "frame". It's supposed to be the neutral but if
somebody screws up the wiring in the electrical panel or the
outlet box you can end up in lots of trouble.
Eric
On Tue, Dec 03, 2002 at 07:06:50PM -0500, Paul wrote:
> >
> >
> >Purchase a grounding strap.
> > -or-
> >`Build' a grounding strap by screwing one end of a piece of wire to a known
> >ground (screw-plate of a properly wired outlet) and the other end stripped
> >and wrapped around your wrist. This bleeds off all static to ground.
> >
> Um, it might be a good precaution to add a resistor. I'm not sure of
> the ideal value for the resistor, but the resistor will limit the amount
> of current that can flow through the circuit. That's important because
> the circuit includes your body!
>
> I did an experiment in which I tied a copper wire around my ankle and
> let the other end drag on the carpet. It worked. With the wire
> everything was OK. Without the wire static charge would build up to the
> point that I would get an audible zap and a light show whenever I
> touched something.
>
> The idea is to balance the difference in charge between your self and
> the object (in a controlled manner). It is not necessary to use an
> electrical system's earth ground. For example, when passing a piece of
> RAM to another person touch the person's hand with your own hand before
> handing off the RAM. In the same way you can balance the charge between
> your self and a PC by touching the frame first.
--
------------------------------------------------------------------------
# Eric Allan Lucas
------------------------------------------------------------------------
Everyone wants to live at the expense of the State. They forget that
the State lives at the expense of everyone.
-- Frederic Bastiat (1801 - 1850) French statesman and author.
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