All homes need power. You don't necessarily need to be a professional electrician to make repairs and modifications on a home's electrical system; in fact, doing the job yourself can save a lot of money. Spurring a double socket gives you an extra socket to work with. The maximum number of spurs is one per socket. Take care when working with electrical wiring, since the potential for electrocution is high.
Eliminate all power to the outlet before starting work by turning off the corresponding circuit on the circuit breaker.
Unscrew and remove the plastic socket cover from the wall.
Wire the two extra spur wires (the new wires used to complete the spur) through the 30 amp jump boxes and attach them to the radial circuits. Jump boxes convert the current from AC to DC and vice versa. Radial circuits, or ring circuits, are a chain of interconnected circuits with separate conductors.
Detach the wires from the junction box (located next to the amp box) and connect them to the positive and negative ends of the spur.
Strip the two red wires running from the back of the double socket.
Set the multimeter to OHMS and connect one of the leads to both read wires. If the meter reads zero, it means the spur has been performed successfully.
Reattach the plastic socket cover and return power to the socket.