You can no longer post new replies to this discussion. If you have a question you can start a new discussion
Table 41.1 Assumed Touch Voltage
Former Community Member
I am a bit confused by this. Why do the disconnection times in Table 41.1 appear to be based on a touch voltage of 100 volts rather than a touch voltage of 125 volts?
For example, 110% of 230= 253 volts. Assuming L and PE are of the same size and material, indirect contact touch voltage is 126.5 volts. Would 0.33 seconds not appear more realistic?
Of course if I am in contact with a severed flex, with L in contact with my left hand, and N in contact with my right hand at the same time, I am a gonner despite what type of protective device is used, if I am wearing isolating shoes.
Z.
Not so in my experience; in my early years as a shift maintenance electrician in the steel industry, I had 2 severe shocks at 250V; one hand to hand across the chest, and 1 arm through leg. After the first one, I experienced muscular pain for about 3 days in the arms!. My labourer mate standing beside me, didn't even know I was being shocked; (one of the reasons why the electrical trade union insisted on an assistant helper for electricians at that time).
Of course if I am in contact with a severed flex, with L in contact with my left hand, and N in contact with my right hand at the same time, I am a gonner despite what type of protective device is used, if I am wearing isolating shoes.
Z.
Not so in my experience; in my early years as a shift maintenance electrician in the steel industry, I had 2 severe shocks at 250V; one hand to hand across the chest, and 1 arm through leg. After the first one, I experienced muscular pain for about 3 days in the arms!. My labourer mate standing beside me, didn't even know I was being shocked; (one of the reasons why the electrical trade union insisted on an assistant helper for electricians at that time).
