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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?
R.C.D.s have saved many lives. If they are not totally reliable then use two in series to half the perceived risk. Are M.C.B.s a hundred per cent reliable?
Z.
Why can't the MCB be the backup? A series RCD would either have to be in literal series, or a delayed trip type main with a higher ma threshold.
R.C.D.s have saved many lives. If they are not totally reliable then use two in series to half the perceived risk. Are M.C.B.s a hundred per cent reliable?
Z.
Why can't the MCB be the backup? A series RCD would either have to be in literal series, or a delayed trip type main with a higher ma threshold.
