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You can't, you need an electrician to find out which wire is which.

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Q: How do you wire a 250 volt stove outlet with only three black wires?
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How can you change a two-wire light fixture to a three-wire fixture with an outlet attached?

The National Electrical Code allows this change only if you upgrade the whole circuit. BUT ..If you are using this outlet only when the light is on, connect the black wires together and the white wires together. Ground wires together to the box also. IF THIS IS WITHIN 6 FEET OF A WATER SOURCE, IN A BASEMENT, GARAGE, OR OUTSIDE IT HAS TO BE GFI PROTECTED!!!!


How do you wire a two wire fixture to a four wire outlet?

Wiring a 2 wire fixture to 4 wire outlet depends on configuration of wires in outlet box. If you have 2 white and 2 black I will assume there are more lights controlled by the same switch. 1st scenario attach both black wires to black of 120 volt fixture. Attach both white wires to white wire from fixture. atach ground to box or ground wire. 2nd scenario attach white neutral to white from fixture, Attach black hot to white going to switch. Attach black from switch to black from light Fixture. If you need further help I recommend hiring a contractor. Take a look into contraxtor.com


Why would a wall outlet have 3 hot and 3 neutral wires?

- This outlet is not wired to a switch or anything like that. One set of wires is wired into the sides of the outlet, and the other two sets are pushed into the back connections. would I need to replace it with a special outlet? and is it safe?


How do you connect 4-wire cord to the electric stove?

Two wires are hot and are usually Red and Black. Connect the white wire to neutral and green wire to ground.


Why would an outlet have two black wires two white wires and one ground but only one white was connected?

The normal colors of a residential outlet are black(hot), white(nuetral), and bare/green(ground). It is common to 'feed thru' an outlet, in other words to bring the power in on one trio of wires tied to the outlet and send it out on another trio of wires also tied to the outlet. If however one white wire is not connected the power will not feed thru properly and whatever outlets are downstream will not work. It is possible to burn up whatever equipment is plugged into the downstream outlets, espiecaly if it is electronic ie; omputers, video equipment etc... Hope this helps. Remember turn off power before working all electrical outlets.

Related questions

What do you do if your old wall outlet has three white wires and three black wires running to it but your new outlet only has two total inputs for white and black in the back?

wire nut the three whites together with a fourth wire going to the outlet same for the black


Is there a video how to wire a new light with an on-off switch using wires coming from an outlet?

There may be, but you don't need one for this. The outlet has two or three wires. Black and white or black, white and bare. Extend all the wires to the switch, break the black wire with the switch and continue all three to the light. Simplest wiring there is.


What are the colors of the wires on a duplex outlet?

Black, white, and copper.


How do you wire a three-wire oven outlet if you have two black wires and one ground?

Both black wires should connect on the outer 2 terminals and the white wire on the center terminal


How do you hook up two separate light switches in the same box with one recepticle power feed?

The supply black (Hot) wire from the outlet feeds each switch (attach two pigtail black wires from the outlet black wire). The other side of each switch goes to the load. The three white wires (Neutral) get connected together (1 from outlet and 1 from each load). The three bare wires (ground) also are connected together.


Why would an outlet have two black wires two white wires one red wire and a ground?

It's possible that the outlet is on a switch, and either one half of the outlet is switched or the whole thing. The extra two pair of wires probably feed the NEXT outlet.


How do you wire a 240V stove plug if old stove was hard wired and had 4 wires Black red white and ground coming from the wall are three wires Black red and a shield wire is the shield wire the neutral?

Shield is ground. White is Neutral, center tap of the transformer from the power company.


What color of wires are found on a 120 volt duplex poutlet?

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.


Three wire outlet to four wire outlet 240?

You need two different hots, one neutral and a ground. You can't do it with three wires.


Originally a 240V line running from the 50A circuit to a box contaning in line fuses from this box came a 240V cable having 2 black wires and wire braid do I wire the outlet stove as a 3 or 4 prong?

3 prong the 2 black wires are your hot and the braided is your neutral.


Can you put a three prong plug on a used stove that used to have a four prong plug?

I am guessing that the stove runs on 240 VAC and that the four wires were Black, Red, White and Green. There would be 240 VAC between the Black and Red wires and 120 VAC between the Black and White and Red and White wires. The green wire is ground. If this is the case you need a plug that matches the original 4 conductor receptacle.


What is single phase outlet?

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.

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