When metal boxes are used, there may be two grounding pigtails: one attached to the metal box, and one attached to the device, with the free ends of both pigtails joined to the circuit grounding wires using a wire connector.

Also, is pigtail wiring safe? As long as the receptacle is rated and UL-listed for feed-through wiring, as well as properly installed, it should be safe as intended by ULs Standard for Safety (UL 498), which covers receptacles. The pigtail method transfers the connection point from the receptacle to a wire nut.

Regarding this, can you pigtail ground wires?

Step 2: Pigtail Ground Wires However, if any of the wires are nicked or damaged, they should be cut back and redone. Bend one of the ground wires back on itself. Trim the other ground wire to the same length. Use linemans pliers to tightly twist the wires together.

Can 2 ground wires touch?

There is only one green ground screw connection on an outlet. The two ground wires must be wire-nutted together along with another 6-inch length of green or bare ground wire known as a pigtail. A grounded electrical outlet has three holes to provide a ground connection for three-prong plugged devices.