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Junction box for what? Do you mean a sub panel?

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Q: Can a 240V wire be run from the junction box and not the service box?
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How do you finish wiring a 240v 50amp 8 3 wire that your electrician left stubbed without a junction box for a double oven?

You don't; you call an electrician out to safely finish the job for you.


Can a 240V electric range outlet be extended by adding a junction box with 6 3 wire?

Yes. Just make sure you keep the junction box accessable to meet code. Also if you are extending the outlet to more than 75 feet away from the panel you should run 4-3 wire.


How to extend a wire if an existing wire is short in the junction box?

The answer depends on what type of access you have to the junction box. The wire external to the box may have some slack that can be brought into the box. If everything is tight you will probably have to install one or more additional junction boxes or rerun wire from electric panel. As an example assume that the short wire has no external slack, but you can install a new junction box near the other box and in the path of the short wire. 1. Pull the short wire from existing junction box. 2. Install new box in path of short wire so more slack will be available in the additional junction box; and pull wire into new box. 3. Run a wire of the same size from new to old box and re-splice any connections for original short wire or new connections; and connect this new wire to the original short wire in the new box. Make sure you follow all code requirements for your locale.


How do you extend romex wire you moved an outlet you need to extend and connect?

You need to splice the extension Romex, using wire nuts, inside a covered junction box made for the purpose. If you can do it within the original outlet box you can put a blank cover on the box. If not you may have to install a new "old work" box in wall. If you can get to wire in attic or basement you could put the junction box in one of those locations. The junction box must be accessible so you can't bury it in the wall.


How do you add another porch light to an existing switch?

Piggyback off the box for the existing light. Run a wire from the existing junction box to a new junction box (which is placed wherever you want the new fixture). Then, in the existing box, connect the wire coming from the switch, the wire for the existing fixture, and the wire for the new fixture together using wire nuts. Wire up the new fixture, and presto, you have two fixtures on a switch where there was only one before.

Related questions

How do you extend an 240v wire circuit 2 feet longer?

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.


Can you run a 240v wire from the electrical panel then put a junction box to run it where you want?

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.


How do you finish wiring a 240v 50amp 8 3 wire that your electrician left stubbed without a junction box for a double oven?

You don't; you call an electrician out to safely finish the job for you.


Can a 240V electric range outlet be extended by adding a junction box with 6 3 wire?

Yes. Just make sure you keep the junction box accessable to meet code. Also if you are extending the outlet to more than 75 feet away from the panel you should run 4-3 wire.


How to extend a wire if an existing wire is short in the junction box?

The answer depends on what type of access you have to the junction box. The wire external to the box may have some slack that can be brought into the box. If everything is tight you will probably have to install one or more additional junction boxes or rerun wire from electric panel. As an example assume that the short wire has no external slack, but you can install a new junction box near the other box and in the path of the short wire. 1. Pull the short wire from existing junction box. 2. Install new box in path of short wire so more slack will be available in the additional junction box; and pull wire into new box. 3. Run a wire of the same size from new to old box and re-splice any connections for original short wire or new connections; and connect this new wire to the original short wire in the new box. Make sure you follow all code requirements for your locale.


Can you mix aluminum wire with romex in a junction box?

No, do not mix aluminum wire with copper wire.


Do wire nuts have to be inside junction box when installing porch lights?

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.


240v box outside for a hot tub you need a 110v receptacle Can you wire it off the 240v box?

Using a box that is hire voltage than what you need can cause a short, and even a fire. So using a 240V box, when all you need is a 110v receptacle, wouldn't be a good idea.


Can you junction box 8ga wire with 10ga wire?

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.


What type of prewire for a ceiling fan light?

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.


How do you extend romex wire you moved an outlet you need to extend and connect?

You need to splice the extension Romex, using wire nuts, inside a covered junction box made for the purpose. If you can do it within the original outlet box you can put a blank cover on the box. If not you may have to install a new "old work" box in wall. If you can get to wire in attic or basement you could put the junction box in one of those locations. The junction box must be accessible so you can't bury it in the wall.


How do you add another porch light to an existing switch?

Piggyback off the box for the existing light. Run a wire from the existing junction box to a new junction box (which is placed wherever you want the new fixture). Then, in the existing box, connect the wire coming from the switch, the wire for the existing fixture, and the wire for the new fixture together using wire nuts. Wire up the new fixture, and presto, you have two fixtures on a switch where there was only one before.