Sparky,
just the way I see it, but if you pull the wire in with a tugger, it is usualy attached to and pulling on the conduit in a straight line, so no down pull except the weight of the tugger. On pulls where the wire is too small to need a tugger, I do not think weight is an issue. Here is a link to a site I use with some good info on wire and conduit weight.
www.mc2-ice.com, when the page loads go to the support pulldown and select estimators reference.
