Can someone let me know the science behind this please. I’ve been told that if there is a fault on a circuit the ZS values in the regs are there to give ADS in a time that is not going to cause considerable harm. My question is if disconnecting times don’t comply what is the dangers that arise I know it’s physics but have seen marshalling bars carrying current through earthing conductors all day and we don’t get a shock of them. Thank you for you help in advance guys just want to clear up some unanswered questions.
is this equation correct for touch voltage from this I can see that the higher ZE the less touch voltage between the the appliance and the earth. The longer the circuit the greater the touch voltage. The smaller the resistance of r2 the smaller the touch voltage. I think I’m getting somewhere. ?
is this equation correct for touch voltage from this I can see that the higher ZE the less touch voltage between the the appliance and the earth. The longer the circuit the greater the touch voltage. The smaller the resistance of r2 the smaller the touch voltage. I think I’m getting somewhere. ?
