W wire-doc New member Location O.C. Ca. Dec 5, 2010 #1 I am installing 3 parallel 480 volt 3 phase 300mcm runs from a disconnect to switchgear. This is a solar project meaning that I am backfeeding the gear. What table do I use to find my grounding/bonding conductor?
I am installing 3 parallel 480 volt 3 phase 300mcm runs from a disconnect to switchgear. This is a solar project meaning that I am backfeeding the gear. What table do I use to find my grounding/bonding conductor?
roger Moderator Staff member Location Fl Occupation Retired Electrician Dec 6, 2010 #2 See 250.122(F) Roger