Common residential sizes are 14 AWG, 12 AWG and 10 AWG, but larger sizes ... strands wound together. The electrical conductors are insulated, while the ground wire is either bare or insulated.

Is all electrical equipment required to be ... conductors for a 40A circuit are increased in size from 8 AWG to 6 AWG, the equipment grounding (bonding) conductor must be increased in size from 10 AWG ...