I need to figure out if my companies pulling equipment can handle a 795 drake conductor (about 1 lb/ft) double bundled (times 2). The pulling equipment has a safe working load of 4000 lbs. We are pulling it across 16 spans with a average span of 674 feet. the towers are 115' tall. Max sag tension is 4441lbs. If we pull at 50% sag tension, will the equipment be able to safely handle the load of 10,557 total feet of conductor? I understand tensions will vary with temperature, I just need an approximation. How does the tension on the pulling equipment vary as the total length of wire is pulled and also how does tension vary with the number of spans this pull has (more tension for only 1 span as opposed to 16 spans?) It has been a long time since I have done load calculations. Can anyone refresh my memory?