No, you can feed it with a 2 wire Romex + ground. It depends on what is mounted on the ceiling. If it is just a light all you need is 2 wire + ground Romex. However if it is a fan/light and you want to control each one independant of the other you will need to use 3 wire Romex + ground. This is of course if you have 2 seperate switches. You would then connect the red wire to the blue light wire and the black wire to the black fan wire. If you use 2 wire Romex just connect the blue and black fan/light wire to the black wire in the ceiling box.
A 240 volt wire is the insulation factor of the wire. If you mean a 240 supply source from a distribution panel to a junction box then the answer is yes. You have to keep in mind that the box has to be accessible, meaning that you can get to the box to check the splice within the box. Don't bury the junction box behind the wall board.
The wire nuts do not have to be inside the junction box. They must, however, be as tight as possible to keep moisture from inside the light fixture.
There is no restriction on different size wires being spliced in the same junction box. If your question involves splicing 8ga. to 10ga, this also is not a problem so long as the circuit allows for 10ga wire.
If the system is a conduit system you usually push a fish tape down the pipe from a known location. Usually about 99% of the time the fish tape will get hung up in the junction box. This will give you a distance from a known location to start looking for the box. If it is a Romex or Loomex system your best bet is to get an electrician friend to look at the system and ask him how he would wire the circuit. This is one of the faults that DIYers tend to do, that being burying junction boxes in the walls. They don't know the fact that most fires start in junction boxes and that is why they have to be accessible.
To extend a Romex wire that you moved an outlet, you can cut the existing wire at the original outlet location and add a new piece of Romex wire to reach the new outlet location. Use wire nuts to connect the old wire to the new wire, making sure to match the colors (black to black, white to white, and bare copper to bare copper). Finally, secure the connections with electrical tape and install the outlet at the new location.
They can as they will support the wire into the box. The deciding factor should be the cost. A BX connector costs about four times the price of a romex connector. Also to keep in mind is that most junction boxes these days have their own built in clamps.
No, you can feed it with a 2 wire Romex + ground. It depends on what is mounted on the ceiling. If it is just a light all you need is 2 wire + ground Romex. However if it is a fan/light and you want to control each one independant of the other you will need to use 3 wire Romex + ground. This is of course if you have 2 seperate switches. You would then connect the red wire to the blue light wire and the black wire to the black fan wire. If you use 2 wire Romex just connect the blue and black fan/light wire to the black wire in the ceiling box.
Yes, a 240V wire can be run from a junction box that is connected to the service box. The junction box serves as a point where circuits branch off, so the 240V wire can originate from there rather than directly from the service box. It is important to ensure that all electrical work is done following local electrical codes and regulations.
A 240 volt wire is the insulation factor of the wire. If you mean a 240 supply source from a distribution panel to a junction box then the answer is yes. You have to keep in mind that the box has to be accessible, meaning that you can get to the box to check the splice within the box. Don't bury the junction box behind the wall board.
Romex, All you have to do is go to a hardware store and tell them you need house wire. It comes in a box. I am not sure how many feet. If you are just looking for the gauge, they will know that too.
If you do not add a junction box it looks like new wire all the way from the old junction box with new wire that is longer. It's a tough place to be.
The wire nuts do not have to be inside the junction box. They must, however, be as tight as possible to keep moisture from inside the light fixture.
There is no restriction on different size wires being spliced in the same junction box. If your question involves splicing 8ga. to 10ga, this also is not a problem so long as the circuit allows for 10ga wire.
If the system is a conduit system you usually push a fish tape down the pipe from a known location. Usually about 99% of the time the fish tape will get hung up in the junction box. This will give you a distance from a known location to start looking for the box. If it is a Romex or Loomex system your best bet is to get an electrician friend to look at the system and ask him how he would wire the circuit. This is one of the faults that DIYers tend to do, that being burying junction boxes in the walls. They don't know the fact that most fires start in junction boxes and that is why they have to be accessible.
You can splice additional wire onto the existing wire using wire connectors. Make sure to match the wire gauge and use proper insulation for safety. Cut the new wire to the desired length, strip the insulation, then twist together and secure with a wire connector. Finally, insulate the connection with electrical tape or heat shrink tubing.
The pre wire for a ceiling fan light should be made with a three wire cable. This cable will have a red, black, and white wire as main conductors. This cable will also have a bare ground wire. This wire should be strung between a two gang switch box to the fixture junction box. This pre wire allows the supply to be either fed to the two gang box. From the two gang switch junction box, one side will be used for the light in the fixture and the other side of the switch junction box, itwill be used for the fan portionin the fixture.