Cable construction, directly buried cable when the best and joint. The joint is protective, but it's not strong. The joint of conduit cable is chosen commonly in the position is better, do not have how much water, good secure and convenient the pipeline that look inside. Aerial cable joints are generally selected in the vicinity of the poles, so that it is convenient to view later, maintenance. And fixed.
Evening all, what do you good people use to detect hidden cables and pipes in walls my Bosch scanner is unreliable and triggers if there are no cables present.