I’m doing a commercial restaurant and have a question on the ground wire. The receptacle is 3 phase with ground. Here is what happened. I’m pulling wire from receptacle box to a tie box and from the tie box to the panel. Well what happened was we were 3 feet short on the #8s. ,and the #10 ground. So I cut all the wire at the tire box and went got more #8s. So I tied the #8s together along with the #10 from my reel and pulled from tie box to panel, well the #10 was short so I pulled it out at the panel. My question is can I just use the 3/4 conduit from tie box to panel as my equipment ground.