Isaac Marino Bavaresco wrote:
> Em 15/9/2011 06:59, Electron escreveu:
>  =20
>> At 02.30 2011.09.15, Oli Glaser wrote:
>>    =20
>>> On 14/09/2011 09:19, Electron wrote:
>>>      =20
>>>> Very interesting. What is the minimum current to actually feel the lin=
e?
>>>>        =20
>>> About 0.5mA at 60Hz.
>>>      =20
>> Well, then 230V RMS is 650V peak to peak
>>    =20
>
>
> Nope, the peaks (positive or negative) happen at different times. The
> maximum instantaneous voltage between line and neutral is half that.
>
>
>  =20
>>  it means 1.3 Mohm, but why does one
>> gets a shock even when he uses shoes.. if I measure my resistance to ear=
th in
>> such a situation, it will be in the gigaohm side.. does it mean that e.g=
.. wood
>> shoes have a low breakdown voltage? Only that can explain it, I think.
>>    =20
>
>
> Resistance of some materials is not linear with voltage. As you guessed,
> breakdown voltage plays its role there. Perhaps not of the rubber
> itself, but of impurities and contaminants on the surface.
>
>
> Isaac
>  =20
Common for wax paper capacitors to test OK on a capacitance meter and=20
"open circuit" on a DMM that can measure over 40M Ohm.
Yet on a "leakage tester" they will read "dead short".
http://vintagetvandradio.myfreeforum.org/sutra3243.php#3243

Since these are connecting usually between a Valve (tube) Anode and the=20
next Grid (which might have 220K Ohm to 4.7M Ohm resistor and > 20M Ohms=20
input impedance, the results are usually bad. Output valve overheats and=20
often burns out transformer(s).


--=20
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