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jaison
25-06-2007, 07:48 PM
Hai sirs,
what is the minimum ac and dc volt for geting shock of human body, also enybody can explain electronic air filters.

Eng Student
25-06-2007, 09:15 PM
Current entering the hand has a threshold of perception of about 5 to 10 mA (milliampere (http://en.wikipedia.org/wiki/Milliampere)) for DC and about 1 to 10 mA for AC at 60 Hz. Shock perception declines with increasing frequency, ultimately disappearing at frequencies above 15-20 kHz.

-Wiki

Brian_UK
25-06-2007, 10:38 PM
A strange question, the ideal is that no electric current enters the human body at all.

If it does then you, as designer or engineer, have failed in your duty to protect others from danger.

With 'electronic' filters do you mean 'electrostatic' filters that use positive and negatively charged elements to remove fine dust from the airstream?

Possible link...
http://www.electrostaticfilters.us/electrostatic-filters.html