=== === == == It is bigger than a 120 Volt plug and has either 3 prongs laid out in a Y shape or 4 prongs to include a Ground. === === === === === === === === === === == == It has three round prongs for Live, Neutral and Earth. In some countries, it has two round prongs plus a socket for an Earth prong that is part of the socket outlet. For some sample pictures see the Related Links shown below.
=== === === === === === === === == == It has three rectangular prongs and a cartridge fuse built-in. The fuse can be changed to suit the appliance the plug is feeding, either 3 Amp, 5 Amp or 13 Amp, so it is the right size to protect the appliance.
The Earth prong is larger and longer than the other two which are for the Live and Neutral connections.
The matching socket outlet has a spring-loaded shutter, made of a non-conducting material, which covers the holes for the Live and Neutral prongs as soon as a plug is unplugged.
When a plug is inserted into a socket outlet the longer Earth prong pushes the spring-loaded shutter out of the way to allow all the prongs to enter the socket outlet. For a sample picture see the Related Link shown below.
There are several types. In one the two blades are both horizontal while a normal 120 VAC outlet has blades vertical. In another case one blade is horizontal and another is vertical. In yet a third case it might be a twist lock arrangement.
The current is 0.83 amps on 120 v or 0.42 amps on 240 v.
Someone has wired 240 volts into your 120 volt outlet. If you have 240 volts you need a specially configured outlet so that a standard 120 volt plug cannot be inserted. If you have this situation you would see 120 volts to ground and not neutral. Sometimes if you don't look carefully an outlet will look like the standard 120 volt variety but it isn't. One of the slots is horizontal and not vertical although there may be a small vertical split. 240 volts doesn't just magically appear. What you are describing is on purpose. If it really is 120 volt receptacle you need an electrician to put in the proper receptacle or re-wire the circuit.
It is not just the outlet, but the wiring and breakers that need to be compatible with your 240 Volt appliance. Get an electrician to look at your requirement.
3000 divided by 240 approx 13 amps?
Nobody has "240 watt mains". Perhaps you meant "240-volt mains".You would need to have a lighting or receptacle branch circuit, with over-current protection, in order to use any halogen bulb.However, if you have a 300 W bulb, it should work nicely in a 15-A or 20-A branch circuit.
No, car equipment works on 12 volts, house supplies are 120 or 240 volts.
The current is 0.83 amps on 120 v or 0.42 amps on 240 v.
You don't.
Someone has wired 240 volts into your 120 volt outlet. If you have 240 volts you need a specially configured outlet so that a standard 120 volt plug cannot be inserted. If you have this situation you would see 120 volts to ground and not neutral. Sometimes if you don't look carefully an outlet will look like the standard 120 volt variety but it isn't. One of the slots is horizontal and not vertical although there may be a small vertical split. 240 volts doesn't just magically appear. What you are describing is on purpose. If it really is 120 volt receptacle you need an electrician to put in the proper receptacle or re-wire the circuit.
It is not just the outlet, but the wiring and breakers that need to be compatible with your 240 Volt appliance. Get an electrician to look at your requirement.
3000 divided by 240 approx 13 amps?
Nobody has "240 watt mains". Perhaps you meant "240-volt mains".You would need to have a lighting or receptacle branch circuit, with over-current protection, in order to use any halogen bulb.However, if you have a 300 W bulb, it should work nicely in a 15-A or 20-A branch circuit.
Yes.
Use a voltmeter. The normal choices in the US are 120 v and 240 v. If there is no voltmeter, use an ordinary cheap 60 watt lamp. If the lamp lights normally, the outlet has the voltage marked on the bulb. If it's too dim, the outlet has a lower voltage. If it flashes and dies, it's a higher voltage (I said use a cheap lamp).
no you must go lower or the same
A 20 amp 240 volt circuit can provide 4800 watts.4800 watts / 6 watt per foot = 800 feet.
the voltage of the mains electricity in the UK