Joining Electrical Cable In Wall

A junction box has several holes with removable plugs in the sides and back.

Joining electrical cable in wall.

Electrical wires run behind the walls and through the ceiling of your home meeting at junction boxes. Following a few careful steps will help you to know how to correctly join and secure electrical cables in a safely enclosed junction box. Most connections with electrical lines are made in the attic or in the wall where the junction box is mounted. Have a cable clamp for each one and loosen the screws to open the collar.

Both joins are in a position where it s not suitable to have a socket ie high up so i need to hiude the join behind plasterboard in a cavity so both joins won t be accessible. Modern wiring up to 50 years old or so will have the gauge and number of wires printed on the outer sheathing of the cable. A junction box also known as a splice or switch box is an electrical enclosure inside your home that contains wiring. Sometimes when someone has drilled through it last one was a kitchen fitter who should have known better or sometimes to extend a cable e g.

Redoing a kitchen and need to extend some 2 5mm t e and some 6mm cooker cable. Lugs which use a screw to bind wire into a holding device and bus bars which use a similar approach are used inside of electrical panels to join multiple neutral or ground wires together or to secure large diameter wires. Remove outer sheathing from cable. Firstly are your sure they drop from the ceiling secondly i would personally never join a cable that was going to be buried in plaster or cement however thats not to say it cannot be done and be compliant crimp the cables using a decent correct size crimp and correct crimping tool this connection should then be encapsulated with heat shrink.

It is a safety hazard to completely bury a junction box in a wall. Make sure that you are joining two similar cables. The electrical junction box. Now and again i need to join a cable that is buried in a wall sometimes in a stud wall sometimes to be plastered over.

When extending a circuit for example the electrician may run the cable vertically from an existing outlet box up to the attic or down into the basement across joists to a spot directly above or below the new box location then into that wall cavity to the new electrical box opening. To move an accessory lower on the wall. Choose holes conveniently located for the cables you are splicing and remove the plugs.