e.
.
Description curves:
Curve Conventional limits for current values normally not giving rise any reaction.
Figure 4. remainder felt nothing. 99,5% could not let go. 50% could not let go.
Curve Let-go-current for 99,5% the persons tested, i. remainder felt nothing. 0,5% could not let go.e. Based
on publication the Association for the Advancement Medical Instrumentation
(AAMI) July 1971.3
Influence frequencies [according IEC 479 (1974), First edition].e.1.EFFECTS CURRENT PASSING THROUGH THE HUMAN BODY 23
The hazard electric current primarily depends the value the current passing through
the human body and its duration.
Curve Let-go-current for 0,5% the persons tested, i.
Curve Threshold perception for 99,5% persons tested, i.
Curve Threshold perception for 50% persons tested, i.e.
Curve Let-go-current for 50% the persons tested, i. Important parameters regarding the risk electric shock,
besides the current and time aspects, are:
- frequency the current,
- resistance the human body (depending the frequency).e. The diagram may help in
the evaluation risks for different frequencies
