Is it dangerous to touch a neutral wire
The main points to note is that the neutral and ground(earth) wire at homes are at zero potential. But the "live" has a fairly high potential. So when you touch a "live" wire with you being in contact with the earth, (say standing on the floor bare footed) a voltage of 240V/120V (Indian Domestic Voltage/US Domestic Voltage) between live and earth, and a fairly high current from the Distributor is high enough to get you a shock as the incoming current tries to flow from live via you to earth(which is having low impedance as current has a tendency of flowing in through low resistance path). (Touching a "live" wire and being insulated from earth, say you are standing on the floor with well electrically insulated shoes you wont get a shock because the voltage between live and you becomes zero). Touching a neutral wire and standing on floor say bare footed, remember the voltage between them is zero(potential diff is zero) because both neutral and earth are at zero potential. So even the current returns through neutral (only from a connected load that completes the current flow circuit) you touching the neutral with a 0V cant get you a shock. But its not safe to touch neutral wire! |