Sep 18 2023, 08:26 PM
QUOTE
This is an answer for users of 230V in Europe. In Europe we have Live (brown) and Neutral (Blue). If you touch a neutral wire (not a good idea), then in theory nothing will happen. If however, you touch a Live, you will get a 230V shock (really bad news). It only takes 50mA (0.05A) to kill you, so be careful! If you swap live and neutral which are connected to a lamp, yes it will work fine. However, the switch on the lamp is connected on the Live side. So even though you have switched the lamp off, you have only broken the neutral return path and the light itself is still live. Since the earth is also a valid return path, you could still get a shock between Live and Earth of Live and just standing on the ground (unless you have very wet insulated rubber boots).
UK plugs all have three pins, even 5amp light plugs. This ensures the neutral and earth are always connected the same way around. In mainland europe, many things have just two pins and these can be inserted either way around. I prefer the UK system as it is safer.
UK plugs all have three pins, even 5amp light plugs. This ensures the neutral and earth are always connected the same way around. In mainland europe, many things have just two pins and these can be inserted either way around. I prefer the UK system as it is safer.
QUOTE
You could do it but you should not. Swapping the wires will not have any effect on your circuits. They will keep running as usual and you can switch them on/off with the switches as you did earlier. But it is dangerous to swap the live and neutral wires.
Very.
Neutral wires are at low potential and grounded at the substaion transformer so they pose no risk of giving electric shock to you. Now, all the switches are connected in the live wire. So once you turn the switch off, your appliance is effectively disconnected from live feed and safe. If you swap the wires, even though the switching off will break the circuit, the appliance be still connected to the high potential live wire and a seemingly inert appliance can give you a nasty electric shock.
Very.
Neutral wires are at low potential and grounded at the substaion transformer so they pose no risk of giving electric shock to you. Now, all the switches are connected in the live wire. So once you turn the switch off, your appliance is effectively disconnected from live feed and safe. If you swap the wires, even though the switching off will break the circuit, the appliance be still connected to the high potential live wire and a seemingly inert appliance can give you a nasty electric shock.
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