Can you use a junction box to extend wiring? If you do need to extend the wires, yes, a junction box would be needed. It must remain accessible. You've pretty well identified your two choices; if you don't want to re-run longer cables, you'll need to splice in some additional cable.
when would you use a junction box?Whenever you splice wires together while installing residential circuitry, the electrical code requires you to enclose the connections in a junction box. This safety measure prevents fires that can occur when the wires overheat and also protects people from getting shocked by live wires.
How many wires can be connected in a junction box? Counting Wires in Electrical Boxes Each switch, outlet, or other device counts as two wires.
does a light fixture need a junction box?
You can't install a light fixture without a junction box, but the fact that there's no box at the spot where you want to install the light doesn't mean you can't install the light.
Should I use plastic or metal electrical boxes? Plastic boxes don't use metal cable clamps and do not provide the required grounding path. Metal electrical boxes are primarily used with metal-sheathed or "BX" wiring. However, they can also be used with Romex or NM wiring if desired. Most new residential electrical systems use Romex and plastic boxes.
how do you wire a light switch to a junction box?
Loop the ground wire around the ground screw. Tighten the ground screw.
Identify and twist together the black wires for the:
Are junction boxes bad? Overfilling a Junction Box Cramming too many wires into a junction box is not only dangerous, but it's against the National Electrical Code. Plastic junction boxes are stamped with their approved volume; you may have to calculate the volume of a steel box on your own.
Can I use a switch box as a junction box?
Can a plastic wall switch box be used as junction box? Yes. you can use plastic boxes as a splice box. Remember, the wires still need to be fastened within 8" of the box. If the plastic box has no built in clamp the wire needs to stapled to the framing member within 8 inches of the box.
What happens if you do not connect the ground wire? The appliance will operate normally without the ground wire because it is not a part of the conducting path which supplies electricity to the appliance. In the absence of the ground wire, shock hazard conditions will often not cause the breaker to trip unless the circuit has a ground fault interrupter in it.
How do you wire a light switch from an outlet combo?
To make this happen, all you have to do is switch the places of the two black wires. So you'll connect the black hot wire coming from power to either black screw and then connect the black wire coming from the light fixture to the brass screw. The neutral wires and the ground wire will stay put.
How do you wire a light switch and outlet in the same box?
Connecting Separate Devices in a Double-Gang Box The same three options exist when wiring separate devices. To have the switch control just the outlet, connect the hot circuit wire to one of the switch terminals, and then connect the other switch terminal to the brass terminal on the outlet with a short jumper wire.
Does it matter which wire goes where on a light switch?
If your switch has a “LINE” marking, the always hot wire goes to this. The other connection will be “LOAD” where the load (ie light fixture) is wired. The load wire may have red electrical tape on it to differentiate.
Are junction boxes legal?
The National Electrical Code (NEC) dictates that no wiring splices are allowed outside of an approved enclosure. One type of approved enclosure is a junction box. Junction box covers must remain accessible; they cannot be covered with drywall or other surface material.
Can you install a junction box in the attic?
Junction Boxes in Insulated Attics In this case, the boxes will open into the attic; occasionally they're uncovered. Since insulation is combustible, you must install face plates on all attic junction boxes to prevent contact between bare wires and insulation materials.