Bare wires!?!?!?! For 240V you need 3 wires plus ground. Red and Black are hot, white is neutral. Don't mess with 240V if you have no idea what you're doing. It's not safe at all.
Wires bring the voltage source to the junction box of the receptacle. At this point they are terminated under the screws of the receptacle. With the receptacle screwed to the junction box and the cover plate installed the outlet is ready to be used. The last thing to do is turn the breaker back on to energize the receptacle.
no you have to improperly install it....... :P Shut off the power to the receptacle. Now remove the three black wires from one side of the old receptacle and twist them all together with your pliers. Make a short pigtail 6 inches long, same colour and wire size. Now twist this pigtail into the other three wires. Hold all four wires together with the appropriate size wire nut. Do the same with the white wires. Push all the wires into the back of the receptacle box. Connect the two pigtail wires to the new receptacle black wire to the brass coloured screw, white wire to the silver coloured screw. Screw the new receptacle back into the box, install cover plate, turn the power back on. Done deal.
Assuming the wires are the correct gauge for application and breaker you use black and white wires as hot. Put red electrical tape on each end of white wire and connect red and black to the breaker output and bare wire to ground lug in panel. At receptacle connect black and red to hot contacts and bare wire to ground lug.
Look in the back of the range receptacle box that is in the wall. The three wires coming in should have a bare ground wire in the cable set. It wasn't brought to the receptacle because there was no place for it on the three wire receptacle If you find it back there under a screw terminal just add another short piece of wire under the screw and then connect the other end of the short wire to the new ground terminal on the new four position receptacle The wire should be equal in size to the size of the wire that exists around the ground terminal now. If the house is so old that the range cable did not have a ground wire in it the code allows a separate green ground #10 wire to be taken from the breaker panel box to the existing range receptacle This wire is to be bonded on each end. At the panel end to the ground buss and at the receptacle end around the ground screw at the back of the box unbroken and then to the new four position receptacle ground lug.
If the 2 hot wires are connected to either side of a receptacle, you have a 240v receptacle (assuming it's in the US). This is typically done for window air conditioners. But code requires that the receptacle have a different configuration than other receptacles in the building so you don't run the risk of plugging in a 120v device into a 240v receptacle.
A 220 volt receptacle is a receptacle which has 2 wires carrying 110 volts...it has two "hot" wires at 110 and a neutral or common leg which has no voltage. A 110 volt receptacle is a receptacle which has 1 wire which carries 110 volts and a common wire. The wiring in the USA is almost standardized now to where the two "hot" (carrying 110 volts) wires are colored black and red, and the common or neutral is white. To change a receptacle to 110 volts..you remove the red or black wire from the old receptacle and wire nut it off...leaving the other red or black to attach to the new receptacle (right side of receptacle usually, looking at it from the grounding hole on the receptacle ON THE BOTTOM). You then connect the white wire to the left side of the receptacle. This will provide only 110 volts now. If the wires are not black, red, and white..they may be black, black, and white. In most cases, the white wire is always the neutral or common wire. When in doubt, buy a voltmeter and check each wire to the metal box in the wall...the wires carrying the 110 volts will usually read 110 on the voltmeter (or 115, 118..etc). Good luck!
This is the correct way to wire receptacles. Because more that one receptacle can be put on a circuit what you are seeing is the power to other receptacles and the use of this box as a junction box. It sounds like the splice is the way it should be. All of the splices in the back of the box with a pigtail from both the black and the white brought forward and connected to the duplex receptacle The reason the wiring is done this way is to facilitate the removal and replacement of the receptacle without disturbing the splice to the other devices in the circuit. Light fixtures can be fed out of these splices also. For a light switch, two wires will go from a wall receptacle to the light switch and then to the light fixture box. In the switch box the white wires will be spliced together and pushed to the back of the box and then the two black wires will be connected across the switch. When the switch is turned on the voltage is applied to the fixture junction box.
Answer for USA, Canada and countries running a 60 Hz supply service.A four blade range plug is the new code. What should be done is to change the three blade receptacle to a four blade receptacle. The only difference in the receptacle wiring is that the position of the neutral wire and the addition of a ground wire being brought out to the range on a separate blade to match the ground wire on the plug. Turn the circuit breaker that feeds the range to the off position. Opening up the receptacle you will find now, two hot wires to the outside blades and a neutral to the center pin. Look in the back of the range receptacle's junction box and you will see a ground wire wrapped around a screw that grounds the dryer feed wire. From this ground wire add an extension of six inches. This new wire then connects to the fourth terminal on the new four blade receptacle. Looking at the new receptacle you should have the two hot wires on the outside terminals X and Y, white (neutral) W blade and the newly installed ground wire to the U shaped ground G blade. This receptacle is a NEMA 14-50R, 3 pole 4 wire grounding receptacle.Before you do any work yourself,on electrical circuits, equipment or appliancesalways use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
Answer for USA, Canada and countries running a 60 Hertz supply service.Range receptacle three to fourLook in the back of the range receptacle box that is in the wall. The three wires coming in should have a bare ground wire in the cable set. It wasn't brought to the receptacle because there was no place for it on the three wire receptacle. If you find it back there under a screw terminal just add another short piece of wire under the screw and then connect the other end of the short wire to the new ground terminal on the new four position receptacle. The wire should be equal in size to the size of the wire that exists around the ground terminal now. If the house is so old that the range cable did not have a ground wire in it the code allows a separate green ground #10 wire to be taken from the breaker panel box to the existing range receptacle. This wire is to be bonded on each end. At the panel end to the ground buss and at the receptacle end around the ground screw at the back of the box unbroken and then to the new four position receptacle ground lug.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energizedIF YOU ARE NOT REALLY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
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