An outlet can be properly grounded with only 2 wires by using a Ground Fault Circuit Interrupter (GFCI) outlet. The GFCI outlet can provide ground fault protection even without a separate grounding wire.
A 120 volt duplex outlet is the main type of outlet for residential outlet system. The wires are typically white and black, and there should only be two of them.
It is an outlet that has one hot wire, such as a household receptacle, or two hot wires, such as a dryer outlet (in the US). If the outlet has three hot wires, it would be called a 3-phase or polyphase outlet. These would normally be found only in an industrial setting.
No, it is not safe to have a wire hanging out of an outlet. If you have a four-wire connection but only a three-prong outlet, this could pose a safety hazard. You should have a qualified electrician properly install a matching outlet to avoid any risk of electrical shock or fire.
To wire a GFCI outlet with only 2 wires, connect the black wire to the brass screw and the white wire to the silver screw on the GFCI outlet. Make sure to follow the manufacturer's instructions and turn off the power before starting the installation.
Yes if the wires are there and not connected they could short etc
You can if you have a neutral wire present. If the existing switch is what is called a "switch loop" then you can not change the existing switch to a switched outlet. You can identify a switch loop by looking at the wires coming into the switch bow. If there are only one set of wires usually a black and white and they go directly to the switch then you have a switch loop
A parallel ATA cable has 40 wires. Some high performance cables have 80, but there are only 40 distinct wires - with every other wire being grounded to minimize cross-talk.
No, except that you insert the wires into the holes on the back of the outlet. The power in connects to the LINE side of the outlet and power out connects to the LOAD side of the outlet. This is clearly marked on the back of the outlet. This will not only protect the outlet with the GFCI installed but all outlets receiving their power from that GFCI. If you do not want to protect the outlets receiving power from the outlet then connect that outgoing wire to the LINE side also. But know that only the outlet with the GFCI will be protected and all other outlets will not be GFCI protected.
Some tools don't have ground wires because the tool exterior is plastic or some other material that will not conduct electricity. The ground is not required unless the case is metal and can become electrified if the "hot" wire touches it.Sometimes the tool's plug is "polarized" by having one contact larger than the other so it can only be inserted into an outlet in one direction, insuring that the same wire is always the ground or neutral and the other is always the "hot" wire. That insures that the tool's ground is always connected to the outlet ground.Other times the plug has a third prong that is the ground or neutral prong and can only be inserted one way in the outlet to insure the ground of the tool is always connected to the ground of the outlet.
The heater has a three prong plug and the outlet has 2? If it has blown the fuse or circuit breaker, it is drawing more current than the circuit can handle. That is the purpose of the fuse. If you only have 2 prong outlets, it is probably mounted in a metal box that should be grounded. It may not be or it may be in a metal box but the box is not grounded. They make an adapter that has a tab you put behind the screw that is holding the outlet cover in place. Grounding the heater is not going to stop it from blowing the circuit. Try a different outlet, remove something that is on the same circuit or use a heavier fuse which is not always a good idea.
you just don't. the wiring for those kind of outlets require a fourth wire that goes directly to ground which means that you need two hot wires, one neutral and one grounded, have a certified electrician work on your electrical system it's worth the money, so you don't burn down your home, or kill yourself you are dealing with 40 to 50 amps, and 220 volts of power.
This can be tricky. You can only place a receptacle from the location of the box where the three way circuit is fed from. The wires from the three way to three way boxes only carry the "hot' traveller wires. There is no neutral carried from box to box even though there might be a white wire in the three wire group. So you have to locate where in the three way system the hot and neutral wires are located. From this location you can extend new black and white wires to your new receptacle outlet.