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Touching the frame (or strapping to it) equalizes the potential between you and the frame. Does it equalize the potential between you and your tools, your work surface, or the next location you move the parts?
I'd agree, which means that the A+ certification is wrong. (Again.)
Long story short, you are safe not grounding the PC with power cord. A anti-static strap connect to the case of the PC the eliminates POTENTIAL of ESD.
I disagree.
To elaborate (simplify?) what mikeblas and Elledan are stating: Just because a wrist strap is present to prevent you from damaging components doesn't mean another entity can't, like a carpeted floor that the chassis happens to be laying on. It's still quite possible to discharge static voltage build-up thus damage the components if the circuit path as a whole isn't properly grounded. The preferable way to maximize ESD protection/prevention is to ground the chassis (or surface that all the components are in/on) while utilizing a device to equalize the potential between all ESD capable entities (humans, workbench surface, tools, etc.).
It isn't dangerous to ground to an outlet (provided the outlet is correctly grounded).
Your also trying to create a low potential between the parts, the item you're working on, and yourself. You pick up a part out of a container (or package, or bin, or desk) and install it in the device you're servicing. If there is a potential difference between you and the device, you and the part, or the part and the device, then you've got a chance at ESD damage.
So then it would be worth it to actually get a legit strap instead of just having an aluminum bracelet with a copper wire attached eh? And don't hook up to an outlet's ground?
That's is why a; ESD writestraps have a resistor inside them. They are also made of semiconductore material, not metal.
Looking through a catalog that sells professional ESD gear can offer a great education on ESD setups. In a lab handling sensitive equipment, a technician might use a mat, a wrist or a shoe strap, a monitor, and an air ionizer.That's a good point. Hadn't thought about it like that yet I can indeed see how you'd rather have the high potential for the IC you're picking up rather than for your hand
So then it would be worth it to actually get a legit strap instead of just having an aluminum bracelet with a copper wire attached eh? And don't hook up to an outlet's ground?
1)
Somebody mentioned that they have seen pictures, that reveal the effects of ESD, through an electron microscope so that might be something to search for on Google?
I do believe you're confusing Volts with Amps there--0.000001 Volts isn't nearly enough to turn on a transistor, let alone damage it.2) Electronic devices operate on the scale of micro volts ( 0.000001 Volts ). If your electronic device fails, you won't see an atomic bomb going off.
I do believe you're confusing Volts with Amps there--0.000001 Volts isn't nearly enough to turn on a transistor, let alone damage it.
//electrical engineer
I do believe you're confusing Volts with Amps there--0.000001 Volts isn't nearly enough to turn on a transistor, let alone damage it.
//electrical engineer