I need to pull 3 lengths of 2/0 copper THHN through about 270 ft of 2 inch PVC conduit with two 90 and two 45 bends in it. I've done this before, but always with three separate lengths of wire pulled together. My supplier says they may be able to get triplex wire cheaper than three separate wires. Is the triplex going to be harder, easier or about the same effort to pull as three separate wires pulled together?
How feasible would it be to pull 3 lengths of 4/0 aluminium wire through this conduit? It's code-legal, but is it doable? Three 2/0 wires is the biggest load I've tried through this length of 2 inch PVC, and that was hard.
I was talking with an electrician friend recently, and he mentioned that heavy pulling with nylon or poly rope can saw through bends of PVC conduit. I've always used nylon or polyester rope with no problems. My friend recommends cotton rope. Is this worth doing? Cotton is a lot weaker than nylon or polyester, which is a worry, plus I'd have to go buy it.
Mike