Joining Electrical Cables In Walls

Electrical splices can never left on their own in a wall or ceiling cavity.

Joining electrical cables in walls.

Use a wire nut size appropriate for the number and gauge of the wires you re using. Wiring splices are made by joining the bare metal ends of wires together. Push up into ceiling space crimp joints dont need to be accessable. When installing them in finished walls electrical boxes should be located between studs.

Instead we use special approved connectors. The box itself must remain accessible and cannot be hidden behind drywall or other building materials that would require removal to get to the box. Chase down to new possition. The best way to strip wires is to use a pair of basic wire strippers.

The alumiconn tm connector shown here is used to splice a copper pigtail wire together with one or two aluminum wires as a step in reducing the fire hazard associated with aluminum electrical wiring. To move an accessory lower on the wall. With the exception of stranded wire which we ll talk about below it s important to make sure the ends of all wires are lined up before twisting on the wire nut connector. 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.

A plastic connector called a wire nut is used to insulate and secure the splice. Instead all splices must be contained within an approved junction box or fixture electrical box. Line up the wire ends then tighten electrical caps photo 1. When splicing insulated wire you have to strip the insulation from the end of the wire to expose the metal core which may be solid or stranded copper.

To do this you must find the location of the wall studs using a stud finder. 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. Pull cables out of wall use crimps and enclosures not j b. Run exteneded cables in safe zone to where they need to be dropped to new outlets.

Start by marking the desired location for the box on the walls. Electrical wires in a building are sometimes joined without twisting wires together. A splice is the joining of two or more wires by twisting them together. Install the wire connector place the wire nut connector over all of the wires.