If you have an electrical box with wiring that is too short to make electrical connections to outlets, switches or even another junction box, you will need to add 'pigtails' to the wiring in order to lengthen the wiring so you can use it. Before you reach for a clumsy extension cord, consider a more permanent fix: extending electrical wire exactly where you need it. This creates a cleaner and safer setup. A 'pigtail' is simply an extension that is added to a piece. If you're uncertain which circuit to shut off, turn off the main breaker switch to cut power to the entire house. Use your non-contact voltage detector, multimeter, or both to ensure there is no current where you're working. Colors need to be matched and safety protocols must be followed, but it is possible to splice existing wires instead of replacing the whole circuit. Once the wires are connected, fit the box back in place. * Notifiable project requiring Building Control approval if installation is located in a kitchen, bathroom or other special location. To supply new power outlets on a ring main.
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