Question

Why are the cables in tension? *

Answer 1

Because they offer some advantages over other barrier systems, high-tension cable barriers are becoming more popular in several states, including Iowa. But first responders need to take special precautions when removing a vehicle that has become entangled in a high-tension cable system. Anatomy of a high-tension cable system NCHRP-350 certified systems are manufactured by various companies. In general, they consist of three or four cables (21-wire, ¾-in. rope), held at various heights on posts. The posts are designed to bend or break on impact. End anchors hold the cables in constant tension—generally from 3,000 to 8,000 pounds. The tension can be adjusted and the cables can be released