Can Junction Boxes Be Behind Drywall?
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...
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Regarding this, can a junction box be in a wall?
A junction box, also known as a splice or switch box, is an electrical enclosure inside your home that contains wiring. Electrical wires run behind the walls and through the ceiling of your home, meeting at junction boxes. It is a safety hazard to completely bury a junction box in a wall.
One may also ask, why can't you cover a junction box? Why You Need a Junction Box The National Electrical Code (NEC) dictates that no wiring splices are allowed outside of an approved enclosure. Junction box covers must remain accessible; they cannot be covered with drywall or other surface material.
Correspondingly, do all light fixtures need a junction box?
Not all light fixtures require junction boxes because some have their own. When installing one of these fixtures, it's okay to feed the wire straight into the terminal box, make connections and screw the box closed. When feeding a cable into a fixture box, it's important to secure it with the clamp in the box.
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.