Electronics > Projects, Designs, and Technical Stuff
minimum grounding rod depth for outside ESD work?
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SiliconWizard:
You don't need earth grounding, equipotentiality should be all that matters. So a possible solution would be to carry two conductive (ESD) mats, one smaller for your desk/table and one larger you'd put on the ground under the table and yourself if you really want to get it right. Connect them together and yourself with a wrist strap, that should be ok?
coppercone2:
all I can think of is that the mat can charge up like a capacitor if its not drained and build up to some ridiculous charge and then the equalization could lead to a current pulse ? I assume by grounding it and removing the parts from a static bag you are keeping the differential to like what, 500V?

Like a helicopter near the power lines with a floating shielded guy still sparks because of the capacitance IIRC.

But in this situation I am imagining myself sitting on the matt and working on the mat as the power line and the part as the helicopter?
Gyro:
Mats are conductive all the way through - in fact the normal black underside is considerably more conductive. One of those (floor mat) is all the ground contact you're ever going to need.
coppercone2:
I guess the top layer is thin so its misleading to do a point to point measurement on the top
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