Bare ground wire of distribution box

26 mm 2 (10 AWG) ground wire must be used, and in all other markets a 6 mm 2 must be used. Power from factory ground must be installed by a qualified electrician. Grounding of the units: Attach a ground wire from one of. A ground wire, also known as a grounding wire or ground conductor (GEC and EGC), as the name implies, is an electrical wire connected from the transformer and main panel (or distribution board) to the ground rod or earthing plate via ground electrode conductor (GEC), also known as an earthing lead. Installing a pigtail ground wire is the preferred method for achieving this secure and compliant connection. Page top photo: ground wire for the. The correct connection method of Distribution box grounding wire mainly includes the following steps: 1.