The word pylon originated with the ancient Greeks, who used the word to describe a large decorative gate or wall that stood at the front of a temple. The word has since taken on many meanings, including those orange-colored traffic cones that are so visible around highway construction sites. Nonetheless, the most common modern usage of a pylon refers to various types of metal towers that support high-tension electrical cables or wireless communication antennae.
High Voltage Electrical Transmission
Perhaps the most visible and largest pylons are those used for the transmission of high voltage electricity. These towering metal structures stretch across the countryside, supporting high-tension cables that carry large amounts of electricity. They are distinguished by a tall central tower, crossed by two or more arms that actually support and hold the high-tension lines. From a distance, they appear a bit like the mast of a tall ship.
Lattice Pylons
Not all tall metal pylons support and hold high-voltage power lines. Many types of metal towers are used to place receiving antennae high in the air. The communication devices are instrumental in maintaining radio, TV and other types of wireless signals across many types of terrain. Most often, a lattice style tower is built to support the receiving device, as guide wires may be needed to hold the tower in place. Lattice pylons are used by communications companies because of the ease of access to the top should the antennae need repair. A ladder from the ground enables workers to climb the tower, whenever necessary.
Camouflage Pylons
The wireless communication industry also employs many antennae designed to blend in with the local environment and go unnoticed. Some of the more creative camouflage techniques include building and installing communication antennae on top of flagpoles or devices that resemble brick chimneys or even trees. The disadvantage of this type of pylon is that in case of repair, the technician may need to use a crane to access the antenna.
Orange Plastic Pylons
So far only tall metal towers have been mentioned in regards to the subject of pylons. However, there is an orange, plastic, cone-shaped pylon that is commonly seen around construction sites, at roadside work areas and even at football games marking the corners of the end zone. These collapsible cylindrical markers usually stand about knee-high to a grown man and can be purchased over-the-counter from many vendors. The common use of these colorful items, just goes to show how many diverse objects might fall under the label of a pylon.