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None. Regular 110 volt Ac power changes polarity sixty times a second. Hooking the two wires differently won't change a thing. Some electronic equipment needs to know which side is neutral and power and will not work with the polarity reversed. These are pretty rare, though.
Actually, there IS a risk with that.
While A/C power does change polarity, and the lamp will work either way, reversing the lamp's wiring WOULD DEFEAT THE SAFETY PURPOSE of the lamp's polarized plug.
I'm assuming you have a fairly modern lamp that came with a polarized plug on the cord, with one blade wider than the other. If you reverse the wiring, the wires in the lamp would be connected to the wrong slots in the wall socket - and there would be a higher risk of electric shock for anyone turning on the lamp, changing its bulb, touching the frame of the lampshade etc.
Most modern homes have polarized outlets, where one slot (the white-wire "neutral" connection) is larger than the other. The reason for this is so a lamp or appliance manufacturer can be sure which wire in their device gets connected to which wire in your house.
Inside your lamp's socket, the two separate wires in the cord are attached to two different screws. One is at the center connection on the socket, which connects to the bottom of the bulb. The other wire is attached to the outer shell of the socket, where the bulb screws in... this wire should be connected to the white ("grounded") wire in your home. To ensure this, polarization is used. This is a safety feature because sometimes a lamp wire becomes loose or the socket gets old and worn. If the wire somehow touches the exposed socket metal, you want it to be correctly plugged into the white "neutral" wire in your home, since the white wire is grounded at the fuse box. This could save you from a nasty shock.
If the wires are reversed, then the "hot" wire in a lamp might be the one that would touch exposed metal and you could become the path to ground while turning on the lamp, resulting in a serious shock.
A polarized plug makes sure you plug the lamp in the right way, assuming someone has wired your home correctly (with the white wire going to the silver screw on the outlets). If your lamp has an older non-polarized plug (where both blades are the same width), then the safety feature doesn't apply because you could plug it in either way. You can fix this by purchasing a polarized replacement plug for $2. at a hardware store. On a polarized plug, the larger blade is connected to the wire that has the "ribbed" insulation.
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When you are wiring up a lamp what does the grooved wire mean and what does the smooth wire mean?
grooved wire mean earth wire smooth wire mean suply wire
Why would a neutral wire and a hot wire have continuity?
You could have a short or it could just be that you are reading through a load. Take a lamp and check for continuity at the plug, with a bulb in the lamp you will get continuity, take the bulb out if you still have continuity then you have a short in the wire or the lamp. Same thing happens in the wiring of your house on a larger scale.
What is the amperage rating of lamp cord?
Lamp cord is #18 in size and is rated for 10 amps. This type of wire is strictly for use on lamps only and not to be used for power wiring.
Can a 220 volt lamp be converted to 110 volts without replacing the wiring?
Yes, lamp cord is rated in the 300 volt wire classification. This means that the cord is approved for use up to a maximum of 300 volts.
What is the minimum wire size for desk lamp cords?
Most lamp wire is parallel #16 conductors.
If you were creating a lamp by hand what type of material would you chose for the wiring and what material would you chose to coat the wiring?
The wiring material that should be used is lamp cord. You don't have to coat the wire as it has insulation already applied to the wire by the manufacturer.
When you are wiring up a lamp what does the grooved wire mean and what does the smooth wire mean?
grooved wire mean earth wire smooth wire mean suply wire
Why would a neutral wire and a hot wire have continuity?
You could have a short or it could just be that you are reading through a load. Take a lamp and check for continuity at the plug, with a bulb in the lamp you will get continuity, take the bulb out if you still have continuity then you have a short in the wire or the lamp. Same thing happens in the wiring of your house on a larger scale.
What is the amperage rating of lamp cord?
Lamp cord is #18 in size and is rated for 10 amps. This type of wire is strictly for use on lamps only and not to be used for power wiring.
Does french lamp wiring for a crystal lamp mean that the plug wire comes directly out of the socket rather than running through the base?
The cord is attached under the shade and runs outside the lamp along the back
What type of conductors shall be used for wiring on fixture chains?
The type of wire you are looking for is called lamp cord. It comes in different colours usually to match the fixture. Fixtures hanging from chains use a clear insulation so as to blend in with the fixture chain colour. Remember that the smooth wire of the lamp cord connects to the hot wire and the ribbed wire on the lamp cord connects to the neutral wire in the ceiling junction box.
Why would the running lights fuse blow on a 93 suburban?
possible wiring short in headlamp switch. remove dash cover remove screws holding head lamp switch check wires may have a burnt look to them if so replace wiring pig tail and switch. or trailer wiring if equiped could be shorted to ground on tan wire tan is park lamp or running lamp.
Can a 220 volt lamp be converted to 110 volts without replacing the wiring?
Yes, lamp cord is rated in the 300 volt wire classification. This means that the cord is approved for use up to a maximum of 300 volts.
What is the minimum wire size for desk lamp cords?
Most lamp wire is parallel #16 conductors.
How to hard wire a utility trailer?
The task of wiring a utility trailer is not complicated if the person doing the labor has training or experience. Any job electrical, such as wiring, should be done by a trained professional because there is a dangerous risk of fire if the wire in the utility trailer is not right.
Where can one find out how to rewire a standard lamp?
eHow is a great resource for topics like this, with articles like "How to Re-Wire a Lamp," "How to Rewire a Lamp with a Rotary Switch," "How to Rewire an Old Lamp," and "How to Wire a Floor Lamp."
Why does only the drivers side high beam on a 87 Nissan pick up work with a new head lamp?
You have a wiring problem. Trace the wire to find the connector that is loose.
