Support structures that have crossarms to hold the conductorsAlso known as wires or cables. The conductors are the wire... More clear of the ground. These structures and their foundations are designed to be strong enough to safely carry the weight of the conductorsAlso known as wires or cables. The conductors are the wire... More and withstand storm forces or wind. Structures with one central support structure are also called poles. Towers are usually constructed with steel lattice frames.