1)一班人一齊手拖手 means the total resistances is series connection,it means the resistances is high,so the current through them is small,but the little amount of current can be electrocuted.
2)most of the 水喉(water pipe) is earthed since the rules of COP 2009.so if the Live Wire connect to the water pipe(earth),it will short circuit.
don't do those things.
2010-01-13 22:44:14 補充:
導電能力低是指接地環路阻抗不足; 即是水氣不足.
the 接地環路阻抗(earth loop impedance) become lower,the earth fault short circuit current will become larger,make the devices will action as fast as possible.
2010-01-13 22:44:17 補充:
to lower the earth fault loop resistance,add bulk to the diameter of the cable is not suitable,you have to calculate the earth fault short circuit current to determine the suitable diameter of the cable to prevent fire.