[vcf-midatlantic] anti-static carpet

[Evan Koblentz]

>> Then you don't get the zaps or jolts when touching this to discharge
yourself - as on a typical door knob.
The have some kind of sign, such as, "Keep Computers Safe, Get Rid of
Static, Please Discharge" with an arrow pointing to that.

Veeeeeery interesting.

Sure would be a lot simpler than installing and maintaining all the special flooring.

On Feb 6, 2016, Dan Roganti via vcf-midatlantic <vcf-midatlantic at lists.vintagecomputerfederation.org> wrote:
>FYI,
>This is only half of the solution.
>Shoes are not conductive when it involves ESD, so
>The anti-static carpet only works on one condition  - as they are meant
>to
>provide discharge path, so
>1. If you are wearing anti-static boot straps - as in a Lab --- I doubt
>the
>visitors have this
>2. wearing ESD conductive shoes ---> again, I doubt the visitors will
>have
>this
>
>You like to have the person discharged before you ever enter the room.
>As you don't know how much charge they might have, you can have
>100,000ev
>without even knowing it.
>Even if you had just concrete, they can still be charged coming from
>some
>other part of InfoAge
>Especially when they have ordinary carpet elsewhere -- remember the
>door
>knob jolt.
>And it's .more. prevalent when the humidity is very low - as in the
>winter,
>or in super cold A/C.
>It's nice to have a climate-controlled environment but it's not always
>possible[$$$]
>As you have a need for all 4 systems, A/C, Heater, Humidifier, and
>Dehumidifier.
>All combinations in the environment can exist, cold/dry, cold/wet,
>hot/dry,
>or hot/wet.
>
>The quickest way is to build a simple ESD Grounding station at the
>entrance.
>All it takes is,
>1. a 1meg ohm resistor -- to slowly bleed off the ESD - no jolts
>2. some metal [eg. door knob] that is isolated -- something plastic,
>eg,
>pvc
>3. and then wired to earth ground.
>
>Then you don't get the zaps or jolts when touching this to discharge
>yourself - as on a typical door knob.
>The have some kind of sign, such as, "Keep Computers Safe, Get Rid of
>Static, Please Discharge" with an arrow pointing to that.
>Dan