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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?
No. I've wondered too. I was surprised even when I first saw it, as I've not come across other cases of such a detailed 'technical report' devoted to explaining why certain choices were made in a standard. Perhaps it's not fashionable now to bother with public explanations. The IEC and national standards bodies appear happy to carry on selling this retired publication at a hefty price. (IEC says 'withdrawn').
No. I've wondered too. I was surprised even when I first saw it, as I've not come across other cases of such a detailed 'technical report' devoted to explaining why certain choices were made in a standard. Perhaps it's not fashionable now to bother with public explanations. The IEC and national standards bodies appear happy to carry on selling this retired publication at a hefty price. (IEC says 'withdrawn').
