A
Aldo Larrabiata
No
TC said:
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
A
Aldo Larrabiata
Keep the computer connected to the earth ground. Without 1 MOhm resistor
Either use a bipolar switch, opening BOTH wires connected to the mains
outlet, but keeping the ground connected
Or unplug the cord and connect the chassis to the ground with a wire and two
alligator clamps.
Connect yourself with a wristwatch to the computer case through 1 MOhm
This is very important also: Avoid all kind of insulation between the
computer and you. Use dissipative materials instead (conductive but with a
high resistivity). Wood isn't good as well as plastic soils or carpet. For
the floor, tiles are good, concrete as well, preferably the table shall also
be covered with dissipative material (conductive rubber).
In case you can't have dissipative material to cover the table, this isn't a
big problem as far as everything is grounded or discharged prior to opening
and handling.
Either use a bipolar switch, opening BOTH wires connected to the mains
outlet, but keeping the ground connected
Or unplug the cord and connect the chassis to the ground with a wire and two
alligator clamps.
Connect yourself with a wristwatch to the computer case through 1 MOhm
This is very important also: Avoid all kind of insulation between the
computer and you. Use dissipative materials instead (conductive but with a
high resistivity). Wood isn't good as well as plastic soils or carpet. For
the floor, tiles are good, concrete as well, preferably the table shall also
be covered with dissipative material (conductive rubber).
In case you can't have dissipative material to cover the table, this isn't a
big problem as far as everything is grounded or discharged prior to opening
and handling.
G
gothika
Mine's so simple it's unbelievable!
Leave the computer *plugged in* while you're working on it.
*Always* touch the case before touching any innards. This will effectively
discharge any static.
This *will not* work unless the computer is plugged in, as otherwise there
would be no ground.
I've never damaged a component, and I've even done minor work on carpet
safely this way.
TFM®
You can make a static strap out of an old twist-o-flex watch strap, a
few feet of 18gauge wire and a small alligator clip.
A length of velcro will work for the wrist strap as well.
G
Guest
Aldo Larrabiata said:Keep the computer connected to the earth ground.
Without 1 MOhm resistor Either use a bipolar switch,
opening BOTH wires connected to the mains outlet,
but keeping the ground connected Or unplug the
cord and connect the chassis to the ground with a
wire and two alligator clamps.
Connect yourself with a wristwatch to the computer
case through 1 MOhm
This is wrong because it's virtually impossible to maintain 1M of
resistance between the person and the computer case, and with a direct
earth ground connection to the computer, there will be times when the
resistance between the person and earth ground, an undesireable
condition. If any earth ground connection is to be made at all with
the computer, it should have 1M of resistance in series with it.
Also in the U.S., bipolar switches are not universally used for AC
power. Wall switches and power strip switches are rarely bipolar
here, and many computer power supplies have only single-pole switches.