I recently discovered that
1) None of my outlets in my appartment are properly grounded, except for two in the kitchen which have to be grounded and GFCI to meet building codes.
2) My computer's powersupply is leaking current to the bare metal of my case on very humid days. Enough so that I get a mild but constant shock, but not enough to be painfull.
I wanted to know how much current and amperage I was exposing myself to so instead of touching the bare metal of my case I touched it with one prong of my multimeter while holding the other end.
I got readings of 60 V AC and .3mA AC. The results were consistent from reading to reading as long as my bare feet were touching the rug in the same way. Lifting one foot cause me to get a different, lower result which was consistent across repeated measurements.
My question is this. Assuming that my mutimeter is accurate in this amp range, are the results I am getting a reasonably accurate representation of the actual voltage and current that is entering my body when I touch the case.
If not then can someone explain to me exactly why the current or amperage I am actually exposed to would be different that what I am getting from my multimeter.
PS Please don't give an opinion with explaining it in a semi-rational manner.
I tried to ask about my PSU at a PC hardware forum and the discussion about whether the PSU was defective got derailed by people arguing over this measurement business.
I already had people tell me that
1) No current at all could be passing through my body when I felt a shock because of the large amount of matterial it have to travell through beneith my floor. (Hint more paths for the current to travell = less resistance)
2) You can only measure voltage between two points only if you already know the potential of at least one of the points.
3) You can only measure amperage in a circuit, and a human body can't form a real circuit.
I really can't take much more of that. I am hoping anyone on this forum will either no the basics or if they don't will at least become less verbally abusive when someone politely disagrees with them or ask them to clarify their statement.
1) None of my outlets in my appartment are properly grounded, except for two in the kitchen which have to be grounded and GFCI to meet building codes.
2) My computer's powersupply is leaking current to the bare metal of my case on very humid days. Enough so that I get a mild but constant shock, but not enough to be painfull.
I wanted to know how much current and amperage I was exposing myself to so instead of touching the bare metal of my case I touched it with one prong of my multimeter while holding the other end.
I got readings of 60 V AC and .3mA AC. The results were consistent from reading to reading as long as my bare feet were touching the rug in the same way. Lifting one foot cause me to get a different, lower result which was consistent across repeated measurements.
My question is this. Assuming that my mutimeter is accurate in this amp range, are the results I am getting a reasonably accurate representation of the actual voltage and current that is entering my body when I touch the case.
If not then can someone explain to me exactly why the current or amperage I am actually exposed to would be different that what I am getting from my multimeter.
PS Please don't give an opinion with explaining it in a semi-rational manner.
I tried to ask about my PSU at a PC hardware forum and the discussion about whether the PSU was defective got derailed by people arguing over this measurement business.
I already had people tell me that
1) No current at all could be passing through my body when I felt a shock because of the large amount of matterial it have to travell through beneith my floor. (Hint more paths for the current to travell = less resistance)
2) You can only measure voltage between two points only if you already know the potential of at least one of the points.
3) You can only measure amperage in a circuit, and a human body can't form a real circuit.
I really can't take much more of that. I am hoping anyone on this forum will either no the basics or if they don't will at least become less verbally abusive when someone politely disagrees with them or ask them to clarify their statement.