Extending A Lighting Circuit Cable

Extending electrical circuit wiring jake you cannot extend the wiring form the light fixture that is controlled by the two three way switches unless the switch box is the location of the power source.

Extending a lighting circuit cable. Unscrew the junction box cover. Even if you re just giving your house a face lift you may discover the need to add a new receptacle switch or light fixture to an existing circuit. Is there a way to extend the cables by about 1 2 feet so that i can relocate the ceiling rose in the centre ie by chock bloc. What if you need more than one light switched from the same switch.

The current fitting is a ceiling rose and pendant light. How to extend cable in pendant lighting. The cables must match in terms of wire gauge and the number of individual conductors in the cable. Extending an electrical circuit is not a complicated process but the job does require precision.

When you re doing daisy chain wiring on a light fixture each pigtail usually contains three wires but there could be more if you re adding more than one extra light. The user of this information is responsible for following all applicable regulations and best practices when performing. Make a diagram of where all the cores connect. Extending the lighting circuit.

If you re just adding one the wires in the pigtail include the live circuit wire the wire going to the new fixture and the wire from the existing fixture. We have extended to wiring diagram above to describe what you need to do click to enlarge. And the cables are currently coming through a joist. Calculate total conductors allowed in a box before adding new wiring etc.

Cut off the power supply to the relevant circuit from the consumer unit. By code the number of conductors allowed in a box are limited depending on box size and wire gauge. 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. For example cables labeled 12 2 w ground contains two 12 gauge insulated conductors plus a bare copper grounding wire.

Now you know how to wire a basic lighting circuit with one light switched at one point. Check local regulations for restrictions and permit requirements before beginning electrical work. Prepare the cable route for the spur from the junction box to the new lighting point using 1mm 2 two core and earth spur cable.