Looking to try and pull some 2/0thhn conductors thru U/G PVC. All pulling will be done outside, pipe has been in place for a month and has just gone thru a week of sub zero temps.My concern is not with the buried portion but with potential brittleness of the risers and LB fittings that have been exposed. Wire is not on reels and will have to be "run out" through the snow. Am I looking at creating a big mess in attempting this now? Is there a minimum sustained temp that should be achieved before this type of work is attempted?