High voltage wire pull

[kingpb]

Bob, I agree, cables are the same. I am using a 3ft bend radius on the 90's, and seem to be getting a much higher SWP, what radius are you using? Also, The T=50 lbs, I assume this is for the tension of pulling the cable off the reel?

My overall T = 9852 lbs, and SWP = 2497 lbs. If I extend the sweep radius out I can lower the SWP, but want to confirm we are using the same.

Seems different programs should have more similar results.

 

[cleveland]

Regardless of the differing program results I am glad they both say this is not an acceptable installation. Why would we want to put in such a long run anyhow? When a cable fails it usually does so in a very small location. So here you would have to replace 2400 feet because of a 1 foot failure location. We have manholes spaced at about 350 feet in most instances. Where we have 500 to 550 feet spacing we have to be very careful during installations. Pulling large cable off reels, along shims and then into 5" conduits takes a lot of skill in set up. This whole concept of a 2400 ft. run is disturbing to me. You might be better off to direct bury the line like Utilities do where ever possible. At least that way you can locate the fault and maybe be able to expose it for a spot repair. You might want to look at Kerite cable too. It lasts a long time....... IF properly installed.

 

[kingpb]

I think everybody will agree that this isn't a good installation. Hopefully, those that are reading along, will have a better appreciation for large cable pulls.

There is certainly more to it then a hand full of monkey juice, pull rope, and a wench (or for some the truck bumper).