ECN Forum Forums General Topics of the Trade General Discussion Area electrical safety

If there is no neutral present, I use one of those screwdrivers with a resistor and a light in it, the ones Sven mentioned. Otherwise I use an indicator with 2 probes and 2 LEDs indicating DC, AC and DC polarity or a DMM.
My dad uses the "human wiggy" way with standard european wires (= 230V to ground).